技术领域technical field
本发明以根据独立权利要求1的类型的用于探测车辆中的旋转部件的转动角度的传感器组件为出发点。The invention is based on a sensor arrangement for detecting the angle of rotation of a rotating part in a vehicle of the type according to independent claim 1 .
背景技术Background technique
在已知的转向角传感器中，用于确定方向盘的转数的计数轮非接触式地借助于磁场传感器来扫描。此类系统具有如下缺点，即，在切断点火的情况下须提供静态电流，以便可识别出方向盘在切断点火时的扭转。在车辆长期未使用的情况下，这导致车辆电池的并非所期望的排空。如果未提供这样的静态电流，当在切断点火或断开电池的情况下转动了方向盘，不再可明确地确定转向角。In known steering angle sensors, the counter wheel for determining the number of revolutions of the steering wheel is scanned contactlessly by means of a magnetic field sensor. Such systems have the disadvantage that, when the ignition is switched off, a static current has to be supplied in order to be able to detect a rotation of the steering wheel when the ignition is switched off. In the event that the vehicle has not been used for a long period of time, this leads to an undesired emptying of the vehicle battery. If such a static current is not provided, the steering angle can no longer be unambiguously determined when the steering wheel is turned with the ignition switched off or the battery disconnected.
在公开文献DE 10 2008 011 448 A1中例如描述了一种用于探测转动角度的组件。所描述的组件包括发送器和传感器，传感器取决于旋转部件的转动角度变化将由发送器产生的物理量的变化探测为可数字评估的信号。旋转部件具有至少一个在其周边处耦联的、通过该旋转部件的旋转来转动的、较小周长的、优选带有角度传感器的卫星部，该卫星部经由沿轴向耦联的内摆线传动机构驱动同样旋转的摆线盘或内摆线齿轮，其转速通过内摆线传动机构如此减低，即，由此旋转部件的转数和经过转向轴的多圈回转的绝对的转向角可利用回转传感器系统来确定。An assembly for detecting an angle of rotation is described, for example, in the laid-open document DE 10 2008 011 448 A1. The described assembly comprises a transmitter and a sensor which detects, as a digitally evaluable signal, a change in a physical quantity produced by the transmitter as a function of the change in the rotational angle of the rotating part. The rotary part has at least one satellite coupled at its periphery, rotated by the rotation of the rotary part, of smaller circumference, preferably with an angle sensor, via an axially coupled inner pendulum The hypocycloid drive drives the likewise rotating cycloid disk or hypocycloid gear, the rotational speed of which is reduced by the hypocycloid drive in such a way that the number of revolutions of the rotating parts and the absolute steering angle over multiple revolutions of the steering shaft can be Determined using a rotary sensor system.
发明内容Contents of the invention
而具有独立权利要求1所述特征的用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件具有如下优点，即，旋转部件的实际的转动角度利用优选基于电涡流效应的两种分离的非接触式的测量方法来确定。第一种测量方法探测360°旋转，而第二种测量方法充当“冗余计数器”，其经由距离变化探测旋转部件的多圈回转。通过将待确定的转动角度分成旋转和距离变化，根据本发明的传感器组件的实施方式可非常简单地实现更高的分辨率。此外，通过将转动运动转变成机械旋转和高度变化，即使在旋转部件的多圈回转的情况下也总是存在明确的转动位置。有利地，该转动运动保留在机械的变化的旋转和高度变化中，从而在切断点火或断开电池之后或在电子装置失效的情况下也提供正确的绝对的转动角度。由此可借助于电涡流效应实现特别可靠的运行或者转动角度的特别可靠的识别。另一优点可为机械方面的简化，这可引起成本节省，因为在用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的实施方式中不需要带有彼此接合的齿结构的小齿轮或者磁体，这可引起成本节省。此外，用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的实施方式由于可运动的构件的减少而可以有利的方式非常低噪音地工作。优选地，根据本发明的传感器组件可用于确定车辆的转向角。在此，旋转部件优选实施为车辆的转向柱或实施为不可相对转动地与转向柱相连接的套管。On the other hand, the sensor arrangement according to the invention for detecting the angle of rotation of a rotating part in a vehicle with the features of independent claim 1 has the advantage that the actual angle of rotation of the rotating part uses two methods, preferably based on the eddy current effect Separate non-contact measurement methods to determine. The first measurement method detects a 360° rotation, while the second measurement method acts as a "redundant counter" that detects multiple revolutions of the rotating part via a distance change. By dividing the angle of rotation to be determined into a rotation and a distance change, the embodiment of the sensor arrangement according to the invention makes it possible to achieve a higher resolution very simply. Furthermore, due to the conversion of the rotational movement into a mechanical rotation and height change, there is always a definite rotational position even in the case of multiple revolutions of the rotating part. Advantageously, this rotational movement is preserved in the mechanically changing rotation and height change, so that the correct absolute rotational angle is also provided after switching off the ignition or disconnecting the battery or in the event of failure of the electronics. A particularly reliable operation or a particularly reliable detection of the rotational angle can thus be achieved by means of the eddy current effect. A further advantage may be mechanical simplification, which may result in cost savings, since in the embodiment of the sensor assembly according to the invention for detecting the angle of rotation of a rotating part in a vehicle, no gears with interengaging tooth structures are required. pinions or magnets, which can lead to cost savings. Furthermore, the embodiment of the sensor arrangement according to the invention for detecting the angle of rotation of a rotating part in a vehicle can advantageously operate very quietly due to the reduction of movable components. Preferably, the sensor assembly according to the invention can be used to determine the steering angle of the vehicle. In this case, the rotary part is preferably embodied as a steering column of the vehicle or as a sleeve connected to the steering column in a rotationally fixed manner.
本发明的实施方式提供了一种用于探测车辆中的旋转部件的转动角度的传感器组件。该旋转部件与至少一个测量值发送器耦联，该测量值发送器结合至少一个传感器产生代表旋转部件的转动角度的信号。根据本发明，转动角度探测器利用不可相对转动地与旋转部件耦联的第一测量值发送器和至少一个实施为转动角度传感器的传感器探测旋转部件在360°旋转的范围中的角度位置。此外，回转探测器利用第二测量值发送器(该第二测量值发送器可沿轴向运动地与旋转部件耦联并且与旋转部件一起构造成运动转换器，该运动转换器将旋转部件的旋转转换成第二测量值发送器相对旋转部件的轴向平移)和至少一个实施为距离传感器的传感器确定第二测量值发送器的经过的轴向位移，该轴向位移代表旋转部件的转数。在此，旋转部件的实际的转动角度可由通过转动角度探测器所探测的角度位置和通过回转探测器所确定的转数来确定。Embodiments of the present invention provide a sensor assembly for detecting a rotation angle of a rotating component in a vehicle. The rotating part is coupled to at least one measured value transmitter which, in conjunction with at least one sensor, generates a signal representing the angle of rotation of the rotating part. According to the invention, the rotational angle detector detects the angular position of the rotational part over a 360° rotation using a first measured value transmitter coupled to the rotational part in a rotationally fixed manner and at least one sensor embodied as a rotational angle sensor. In addition, the rotary probe uses a second measured value transmitter which is coupled to the rotating part so that it can move in the axial direction and is formed together with the rotating part as a motion converter which converts the Rotation is converted into an axial translation of the second measured value transmitter relative to the rotating part) and at least one sensor implemented as a distance sensor determines the elapsed axial displacement of the second measured value transmitter, which represents the number of revolutions of the rotating part . In this case, the actual rotational angle of the rotary part can be determined from the angular position detected by the rotational angle detector and the rotational speed determined by the rotational detector.
通过在从属权利要求中阐明的措施和改进方案可实现用于探测车辆中的旋转部件的转动角度的、在独立权利要求1中所说明的传感器组件的有利的改善方案。Advantageous refinements of the sensor arrangement specified in independent claim 1 for detecting the angle of rotation of a rotating part in a vehicle can be achieved by means of the measures and developments specified in the subclaims.
特别有利的是，测量值发送器中的一个实施为带有基体的碗形圆盘，该基体具有中央开口和凹处，并且测量值发送器中的一个实施为带有基体的圆盘，该基体具有中央开口。在此，实施为圆盘的测量值发送器如此实施，即，至少可实现部分地沉入实施为碗形圆盘的测量值发送器的凹处中。优选地，第一测量值发送器和第二测量值发送器可彼此嵌套地布置。这以有利的方式能够实现用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的紧凑的构型。It is particularly advantageous if one of the measured value transmitters is embodied as a bowl-shaped disc with a base body, which has a central opening and a recess, and one of the measured value transmitters is embodied as a disc with a base body, which The base body has a central opening. In this case, the measured value transmitter embodied as a disk is designed in such a way that at least partial sinking into the recess of the measured value transmitter embodied as a bowl-shaped disk is possible. Preferably, the first measured value transmitter and the second measured value transmitter can be arranged nested within one another. This advantageously enables a compact design of the sensor arrangement according to the invention for detecting the angle of rotation of a rotating component in a vehicle.
在根据本发明的传感器组件的有利的设计方案中，可沿轴向运动地与旋转部件耦联的测量值发送器的基体可在中央开口的壁部处和/或在该基体的外周边处和/或在凹处的内壁处沿轴向引导。旋转部件例如可具有外螺纹，并且可沿轴向运动地与旋转部件耦联的测量值发送器的基体例如可具有对应的引入到中央开口中的内螺纹，从而使得测量值发送器可被拧到旋转部件上并且可沿轴向引导。外螺纹例如可直接被切削到旋转部件上。通过外螺纹直接切削到旋转部件中，可以有利的方式降低用于将转动运动转换成直线运动的所需构件的数量，这可引起成本节省。备选地，带有外螺纹的套管可沿轴向推到旋转部件上并且不可相对转动地与旋转部件相连接。通过套管可以有利的方式实现使测量值发送器的尺寸匹配于旋转部件或者转向柱。备选地，实施为碗形圆盘的测量值发送器的基体可在凹处的内壁处具有内螺纹，并且实施为圆盘的测量值发送器的基体可在其外周边处具有对应的外螺纹，从而可实现在测量值发送器之间的有引导的轴向的相对运动。In an advantageous refinement of the sensor assembly according to the invention, the base body of the measured value transmitter, which is coupled axially movable to the rotary part, can be located on the wall of the central opening and/or on the outer periphery of the base body. and/or axially guided at the inner wall of the recess. The rotary part can have, for example, an external thread, and the base body of the measured value transmitter, which is coupled axially movable to the rotary part, can have, for example, a corresponding internal thread introduced into the central opening, so that the measured value transmitter can be screwed onto rotating parts and can be guided axially. External threads can, for example, be cut directly onto rotating components. By cutting the external thread directly into the rotating component, the number of components required for converting the rotary movement into a linear movement can advantageously be reduced, which can lead to cost savings. Alternatively, a sleeve with an external thread can be pushed axially onto the rotating part and be connected to the rotating part in a rotationally fixed manner. Adapting the dimensions of the measured value transmitter to the rotating part or the steering column can advantageously be achieved by means of the bushing. Alternatively, the base body of the measured value transmitter embodied as a bowl-shaped disk can have an internal thread at the inner wall of the recess, and the base body of the measured value transmitter embodied as a disk can have a corresponding outer thread at its outer periphery. thread, so that a guided axial relative movement between the measured value transmitters is possible.
有利地可设置有至少一个锚定件，其阻止可沿轴向运动的测量值发送器的转动运动并且使得该测量值发送器能够轴向运动。为了避免该测量值发送器的旋转，例如至少两个实施为导杆的锚定件可引导通过相应的间隔开的在可沿轴向运动的测量值发送器的基体中的缺口，该锚定件沿轴向引导测量值发送器并且阻止测量值发送器的转动运动。Advantageously, at least one anchor can be provided, which prevents the rotational movement of the axially movable measured value transmitter and enables the measured value transmitter to move axially. In order to avoid rotation of the measured value transmitter, for example at least two anchors embodied as guide rods can be guided through corresponding spaced-apart recesses in the basic body of the measured value transmitter which can move in the axial direction, the anchors The element guides the measured value transmitter in the axial direction and prevents a rotational movement of the measured value transmitter.
在根据本发明的传感器组件的另一有利的设计方案中，传感器可实施为带有预定数量的探测线圈和预定数量的对应的探测区域的电涡流传感器，其经由相关磁场的变化确定距离或者转动角度。优选地，至少一个实施为转动角度传感器的传感器的线圈和至少一个实施为距离传感器的传感器的线圈布置在共同的线圈支架上。探测区域由可导电的材料或铁磁材料形成，在其中对应的线圈感应出涡流。线圈以及探测区域的数量和形状可以有利的方式匹配于现有的安装条件。In a further advantageous embodiment of the sensor assembly according to the invention, the sensor can be implemented as an eddy-current sensor with a predetermined number of search coils and a predetermined number of corresponding detection fields, which determine distances or rotations via changes in the associated magnetic fields. angle. Preferably, at least one coil of a sensor designed as an angle of rotation sensor and at least one coil of a sensor designed as a distance sensor are arranged on a common coil carrier. The detection region is formed from an electrically conductive or ferromagnetic material, in which the corresponding coil induces eddy currents. The number and shape of the coils and of the detection fields can be advantageously adapted to the existing installation conditions.
在根据本发明的传感器组件的另一有利的设计方案中，传感器的探测线圈可在多个位置中分布地布置在线圈支架中。由此可以有利的方式获得较高的灵敏度，即，通过多个位置串联的更大的线圈电感。In a further advantageous refinement of the sensor assembly according to the invention, the detection coils of the sensor can be arranged in a distributed manner in a plurality of positions in the coil carrier. As a result, a higher sensitivity can advantageously be achieved, ie a greater coil inductance connected in series at several points.
在根据本发明的传感器组件的另一有利的设计方案中，评估和控制单元可同时或以预定的顺序评估至少一个转动角度传感器和/或至少一个距离传感器的线圈。这使得能够以有利的方式补偿干扰影响(例如温度变化等等)。此外，使用多个传感器或者线圈能够以有利的方式实现冗余地确定旋转部件的转动角度。In a further advantageous embodiment of the sensor assembly according to the invention, the evaluation and control unit can evaluate the coils of at least one rotational angle sensor and/or at least one distance sensor simultaneously or in a predetermined sequence. This makes it possible to advantageously compensate for interfering influences (eg temperature changes etc.). Furthermore, the use of several sensors or coils advantageously enables a redundant determination of the angle of rotation of the rotary part.
附图说明Description of drawings
在附图中示出了本发明的实施例，并且在下面的描述中对该实施例作进一步阐述。在附图中，相同的附图标记表示实施相同或者相似功能的构件或者元件。其中：An exemplary embodiment of the invention is shown in the drawing and is explained in greater detail in the following description. In the drawings, the same reference numerals denote components or elements performing the same or similar functions. in:
图1显示了在第一位置中的用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的第一实施例的示意性的透视的截面图示。FIG. 1 shows a schematic perspective sectional illustration of a first exemplary embodiment of a sensor arrangement according to the invention for detecting an angle of rotation of a rotating component in a vehicle in a first position.
图2显示了在第二位置中的图1的根据本发明的传感器组件的第一实施例的示意性的透视的截面图示。FIG. 2 shows a schematic perspective sectional illustration of the first exemplary embodiment of the sensor assembly according to the invention of FIG. 1 in a second position.
图3显示了用于图1和图2的根据本发明的传感器组件的线圈支架的第一实施例的示意性的俯视图。FIG. 3 shows a schematic plan view of a first exemplary embodiment of a coil carrier for the sensor assembly according to the invention of FIGS. 1 and 2 .
图4显示了用于图1和图2的根据本发明的传感器组件的第一测量值发送器和第二测量值发送器的第一实施例的示意性的仰视图。FIG. 4 shows a schematic bottom view of a first exemplary embodiment of a first measured value transmitter and a second measured value transmitter for the sensor arrangement according to the invention of FIGS. 1 and 2 .
图5显示了用于图1和图2的根据本发明的传感器组件的线圈支架的第二实施例的示意性的俯视图。FIG. 5 shows a schematic plan view of a second exemplary embodiment of a coil carrier for the sensor assembly according to the invention of FIGS. 1 and 2 .
图6显示了用于图1和图2的根据本发明的传感器组件的第一测量值发送器和第二测量值发送器的第二实施例的示意性的仰视图。FIG. 6 shows a schematic bottom view of a second exemplary embodiment of a first measured value transmitter and a second measured value transmitter for the sensor arrangement according to the invention of FIGS. 1 and 2 .
图7显示了在第一位置中的用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的第二实施例的示意性的透视的截面图示。FIG. 7 shows a schematic perspective sectional illustration of a second exemplary embodiment of a sensor arrangement according to the invention for detecting an angle of rotation of a rotating part in a vehicle in a first position.
图8显示了在第二位置中的图7的根据本发明的传感器组件的第二实施例的示意性的透视的截面图示。FIG. 8 shows a schematic perspective sectional illustration of the second exemplary embodiment of the sensor assembly according to the invention of FIG. 7 in a second position.
图9显示了用于图7和图8的根据本发明的传感器组件的线圈支架的第一实施例的示意性的俯视图。FIG. 9 shows a schematic plan view of a first exemplary embodiment of a coil carrier for the sensor assembly according to the invention of FIGS. 7 and 8 .
图10显示了用于图7和图8的根据本发明的传感器组件的第一测量值发送器和第二测量值发送器的第一实施例的示意性的仰视图。FIG. 10 shows a schematic bottom view of a first exemplary embodiment of a first measured value transmitter and a second measured value transmitter for the sensor arrangement according to the invention of FIGS. 7 and 8 .
图11显示了用于图7和图8的根据本发明的传感器组件的线圈支架的第二实施例的示意性的俯视图。FIG. 11 shows a schematic plan view of a second exemplary embodiment of a coil carrier for the sensor assembly according to the invention of FIGS. 7 and 8 .
图12显示了用于图7和图8的根据本发明的传感器组件的第一测量值发送器和第二测量值发送器的第二实施例的示意性的仰视图。FIG. 12 shows a schematic bottom view of a second exemplary embodiment of a first measured value transmitter and a second measured value transmitter for the sensor arrangement according to the invention of FIGS. 7 and 8 .
图13显示了在第一位置中的用于探测车辆中的旋转部件的转动角度的根据本发明的传感器组件的第三实施例的示意性的透视的截面图示。FIG. 13 shows a schematic perspective sectional illustration of a third exemplary embodiment of a sensor arrangement according to the invention for detecting the angle of rotation of a rotating part in a vehicle in a first position.
图14显示了在第二位置中的图13的根据本发明的传感器组件的第三实施例的示意性的透视的截面图示。FIG. 14 shows a schematic perspective sectional illustration of the third exemplary embodiment of the sensor assembly according to the invention of FIG. 13 in a second position.
具体实施方式Detailed ways
如由图1至图14可见的那样，用于探测车辆中的旋转部件10的转动角度的根据本发明的传感器组件1、1A、1B、1C的实施方式包括至少一个测量值发送器20、30，其结合至少一个传感器40、50产生代表旋转部件10的转动角度的信号。As can be seen from FIGS. 1 to 14 , an embodiment of a sensor arrangement 1 , 1A, 1B, 1C according to the invention for detecting the angle of rotation of a rotating part 10 in a vehicle comprises at least one measured value transmitter 20 , 30 , which in combination with at least one sensor 40 , 50 generates a signal representing the angle of rotation of the rotating part 10 .
根据本发明，转动角度探测器3利用不可相对转动地与旋转部件10耦联的第一测量值发送器20和至少一个实施为转动角度传感器50的传感器探测旋转部件10在360°旋转的范围中的角度位置。此外，回转探测器5利用第二测量值发送器30(其可沿轴向运动地与旋转部件10耦联并且与旋转部件10一起构造成运动转换器，该运动转换器将旋转部件10的旋转12转换成第二测量值发送器30相对旋转部件10的轴向平移14)并且利用至少一个实施为距离传感器40的传感器确定第二测量值发送器30的经过的轴向位移，该轴向位移代表旋转部件10的转数。旋转部件10的实际的转动角度由通过转动角度探测器3探测的角度位置和通过回转探测器5确定的转数来确定。According to the invention, the rotational angle detector 3 detects the rotation of the rotational part 10 in the range of 360° by means of a first measured value transmitter 20 coupled to the rotational part 10 in a rotationally fixed manner and at least one sensor embodied as a rotational angle sensor 50 the angular position. Furthermore, the rotation detector 5 utilizes a second measured value transmitter 30 (which is coupled to the rotary part 10 so as to be movable in the axial direction and is formed together with the rotary part 10 as a motion converter which converts the rotation of the rotary part 10 12 is converted into an axial translation 14) of the second measured value transmitter 30 relative to the rotating part 10 and the elapsed axial displacement of the second measured value transmitter 30 is determined by means of at least one sensor embodied as a distance sensor 40, which axial displacement represents the number of revolutions of the rotating member 10. The actual rotational angle of the rotary part 10 is determined from the angular position detected by the rotational angle detector 3 and the rotational speed determined by the rotational detector 5 .
根据本发明的传感器组件1、1A、1B、1C的实施方式例如可用作转向角传感器以确定车辆的转向角，其中，例如应确定车辆的转向柱的实际的转动角度。在这些示出的实施例中，旋转部件10相应于套管16、16A、16B、16C，其例如被沿轴向推到作为旋转部件的转向柱上并且不可相对转动地与转向柱相连接。Embodiments of the sensor arrangement 1 , 1A, 1B, 1C according to the invention can be used, for example, as steering angle sensors for determining the steering angle of the vehicle, wherein, for example, the actual angle of rotation of the steering column of the vehicle is to be determined. In the exemplary embodiments shown, the rotating part 10 corresponds to bushings 16 , 16A, 16B, 16C which are for example pushed axially onto a steering column as rotating part and are connected to the steering column in a rotationally fixed manner.
如由图1至图14进一步可见的那样，测量值发送器20、30中的一个实施为带有基体22、32的碗形圆盘20B、20C、30A，该基体具有中央开口26、36和凹处24、34，并且测量值发送器20、30中的一个实施为带有基体22、32的圆盘20A、30B、30C，该基体具有中央开口26、36。在此，实施为圆盘20A、30B、30C的测量值发送器20、30如此实施，即，可至少实现部分地沉入到实施为碗形圆盘20B、20C、30A的测量值发送器20、30的凹处24、34中。由此，第一测量值发送器20和第二测量值发送器30节省安装空间地彼此嵌套地布置，从而可以有利的方式实现用于探测车辆中的旋转部件10的转动角度的根据本发明的传感器组件1、1A、1B、1C的紧凑的构型。As can further be seen from FIGS. 1 to 14 , one of the measured value transmitters 20 , 30 is embodied as a bowl-shaped disc 20B, 20C, 30A with a base body 22 , 32 which has a central opening 26 , 36 and The recess 24 , 34 and one of the measured value transmitters 20 , 30 is embodied as a disk 20A, 30B, 30C with a base body 22 , 32 having a central opening 26 , 36 . In this case, measured value transmitters 20 , 30 embodied as disks 20A, 30B, 30C are embodied in such a way that at least partial immersion into measured value transmitters 20 embodied as bowl-shaped disks 20B, 20C, 30A is possible. , 30 in the recesses 24,34. As a result, the first measured value transmitter 20 and the second measured value transmitter 30 are arranged nested within one another in a space-saving installation, so that the method according to the invention for detecting the angle of rotation of the rotating part 10 in a vehicle can be realized in an advantageous manner. The compact configuration of the sensor assembly 1, 1A, 1B, 1C.
在示出的实施例中，传感器40、50实施为带有预定数量的探测线圈42、52(其布置在共同的线圈支架60上)和预定数量的对应的探测区域44、54的电涡流传感器，探测区域在第一测量值发送器20或第二测量值发送器30处基本上与对应的探测线圈42、52对齐地构造。In the illustrated exemplary embodiment, the sensors 40 , 50 are implemented as eddy current sensors with a predetermined number of search coils 42 , 52 arranged on a common coil carrier 60 and a predetermined number of corresponding detection fields 44 , 54 , the detection field is formed on the first measured value transmitter 20 or the second measured value transmitter 30 substantially in alignment with the corresponding detection coil 42 , 52 .
这意味着，转动角度传感器40的探测线圈42与对应的探测区域44沿轴向重叠地布置在线圈支架60上，或者说距离传感器50的探测线圈52与对应的探测区域54沿轴向重叠地布置在线圈支架60上。在示出的实施例中，线圈支架60实施为带有中央开口62的位置固定的圆盘，旋转部件10延伸穿过该中央开口。通过第一测量值发送器20的转动运动或者第二测量值发送器30的轴向运动14和与此相联系的距离变化影响由电涡流传感器40、50在探测线圈42、52与探测区域44、54之间产生的磁场46、56，从而例如结合相应未示出的固定电容可探测相应的频率变化，并且频率变化可由用于确定转动角度和/或确定距离的评估和控制单元70来评估。电涡流传感器40、50的线圈42、52可在微机械加工方法中建立在硅中或直接在优选实施为电路板的线圈支架60上实现，其中，直接布置在电路板上可具有进一步的成本优势。在此可实现不同的线圈形状，例如圆形或矩形，但更复杂的线圈形状也可被证明是有利的。此外，线圈42、52同样可以较大的形状(厘米范围)制成。电涡流传感器40、50的线圈42、52还可在电路板中以及在硅中分布在多个位置中，以便获得更高的灵敏度，也就是说通过多个位置串联的更大的线圈电感。评估和控制单元70可同时或以预定的顺序评估至少一个转动角度传感器40和/或至少一个距离传感器50的线圈42、52。This means that the detection coil 42 of the rotational angle sensor 40 is arranged on the coil carrier 60 such that it axially overlaps the corresponding detection region 44 , or that the detection coil 52 of the distance sensor 50 axially overlaps the corresponding detection region 54 Arranged on the coil support 60 . In the exemplary embodiment shown, the coil carrier 60 is embodied as a stationary disk with a central opening 62 through which the rotary part 10 extends. The rotational movement of the first measured value transmitter 20 or the axial movement 14 of the second measured value transmitter 30 and the associated distance change influence the detection coils 42 , 52 and the detection range 44 by the eddy current sensors 40 , 50 , 54 generated between the magnetic field 46, 56, so that for example in conjunction with a corresponding not shown fixed capacitance can detect the corresponding frequency changes, and the frequency changes can be used to determine the angle of rotation and / or to determine the distance evaluation and control unit 70 to evaluate . The coils 42 , 52 of the eddy current sensors 40 , 50 can be produced in silicon in micromachining methods or directly on the coil carrier 60 , which is preferably embodied as a circuit board, wherein the direct arrangement on the circuit board can involve further costs Advantage. Different coil shapes can be realized here, for example circular or rectangular, but more complex coil shapes can also prove to be advantageous. Furthermore, the coils 42, 52 can also be made in larger shapes (centimeter range). The coils 42 , 52 of the eddy-current sensors 40 , 50 can also be distributed in multiple locations on the circuit board and in the silicon in order to obtain higher sensitivity, ie a higher coil inductance through series connection of multiple locations. The evaluation and control unit 70 can evaluate the coils 42 , 52 of the at least one rotational angle sensor 40 and/or the at least one distance sensor 50 simultaneously or in a predetermined sequence.
如由图1和图2进一步可见的那样，在根据本发明的传感器组件1A的第一实施例中，第一测量值发送器20实施为圆盘20A，其不可相对转动地与实施为套管16A的旋转部件10相连接。在示出的实施例中，实施为圆盘20A的第一测量值发送器20的基体22A为了建立与中央开口26的不可相对转动的连接而压装到实施为套管16A的旋转部件10上。在根据本发明的传感器组件1A的第一实施例中，第二测量值发送器30实施为碗形圆盘30A。如由图1和图2进一步可见的那样，外螺纹16.1被切削到实施为套管16A的旋转部件10中，实施为碗形圆盘30A的第二测量值发送器30的基体32A利用在中央开口36的壁部36.1处引入的内螺纹36.2拧到外螺纹上并且沿轴向引导。根据本发明的传感器组件1A的在图1中示出的第一位置相应于旋转部件10的顺时针旋转止挡(Rechtsanschlag)，其中，在第二测量值发送器30的端面38与线圈支架60A的表面之间具有最大距离h1。根据本发明的传感器组件1A的在图2中示出的第二位置相应于旋转部件10的逆时针旋转止挡(Linksanschlag)，其中，在第二测量值发送器30的端面38与线圈支架60A的表面之间具有最小距离h2。在根据本发明的传感器组件1A的在图2中示出的位置中，实施为圆盘20A的第一测量值发送器20的基体22A沉入到实施为碗形圆盘30A的第二测量值发送器30的凹处34中。为了能够实现无问题的沉入，第一测量值发送器20的基体22A的外周边22.1相对于在第二测量值发送器30的基体32A中的凹处34的内壁34.1具有可预定的距离。为了阻止可沿轴向运动的第二测量值发送器30的转动运动并且释放轴向运动14，设置有至少一个未示出的锚定件。As can further be seen from FIGS. 1 and 2 , in a first embodiment of the sensor assembly 1A according to the invention, the first measured value transmitter 20 is embodied as a disc 20A, which is non-rotatably connected to the embodiment as a bushing. The rotating part 10 of 16A is connected. In the exemplary embodiment shown, the base body 22A of the first measured value transmitter 20 embodied as a disk 20A is press-fitted onto the rotating part 10 embodied as a sleeve 16A in order to establish a non-rotatable connection with the central opening 26 . In the first embodiment of the sensor assembly 1A according to the invention, the second measured value transmitter 30 is embodied as a bowl-shaped disc 30A. As can further be seen from FIGS. 1 and 2 , the external thread 16 . 1 is cut into the rotating part 10 embodied as a sleeve 16A, the base body 32A of the second measured value transmitter 30 embodied as a bowl-shaped disk 30A is utilized in the center An internal thread 36.2 introduced at the wall 36.1 of the opening 36 is screwed onto the external thread and guided in the axial direction. The first position of the sensor assembly 1A according to the invention shown in FIG. 1 corresponds to the clockwise rotation stop of the rotary part 10 , wherein the end face 38 of the second measured value transmitter 30 is connected to the coil carrier 60A. has a maximum distance h1 between surfaces. The second position shown in FIG. 2 of the sensor assembly 1A according to the invention corresponds to the counterclockwise rotation stop of the rotary part 10 , wherein the end face 38 of the second measured value transmitter 30 is connected to the coil carrier 60A. has a minimum distance h2 between surfaces. In the position shown in FIG. 2 of the sensor assembly 1A according to the invention, the base body 22A of the first measured value transmitter 20 embodied as a disk 20A is sunk into the second measured value transducer embodied as a bowl-shaped disk 30A. In the recess 34 of the transmitter 30. In order to enable problem-free sinking, outer periphery 22 . 1 of base body 22A of first measured value transmitter 20 has a predeterminable distance from inner wall 34 . 1 of recess 34 in base body 32A of second measured value transmitter 30 . In order to prevent the rotational movement of the axially movable second measured value transmitter 30 and to release the axial movement 14 , at least one anchor (not shown) is provided.
如由图3可见的那样，线圈支架60A的第一实施例包括四个围绕实施为圆盘的线圈支架60A的中央开口62分布地布置的、用于转动角度传感器40A的第一探测线圈42A和布置在线圈支架60A的边缘处的、环形的、用于距离传感器50A的探测线圈52A。如由图4可见的那样，第一测量值发送器20A的第一实施例包括毗邻于基体22A的中央开口26的、实施为圆环部段的、用于转动角度传感器40A的第一探测区域44A。第二测量值发送器30的第一实施例包括实施为环形的圆环的、用于距离传感器50A的第二探测区域54A。As can be seen from FIG. 3 , the first exemplary embodiment of the coil carrier 60A comprises four first search coils 42A for the rotational angle sensor 40A and four first search coils 42A arranged distributed around the central opening 62 of the coil carrier 60A embodied as a disk. Ring-shaped search coil 52A for distance sensor 50A arranged at the edge of coil carrier 60A. As can be seen from FIG. 4 , the first exemplary embodiment of the first measured value transmitter 20A comprises a first detection region for the rotational angle sensor 40A, which adjoins the central opening 26 of the base body 22A and is embodied as a circular ring segment. 44A. The first exemplary embodiment of the second measured value transmitter 30 includes a second detection range 54A for the distance sensor 50A, which is embodied as an annular ring.
如由图5可见的那样，线圈支架60A的第二实施例包括四个围绕线圈支架60A的中央开口62分布地布置的、用于转动角度传感器40A的第一探测线圈42A和六个布置在线圈支架60A的边缘处的、用于距离传感器50A的探测线圈52A。如由图6可见的那样，第一测量值发送器20的第二实施例包括三个毗邻于基体22A的中央开口26的、实施为圆环部段的、用于转动角度传感器40A的第一探测区域44A，其彼此的角度关系并非相应于整数倍。第二测量值发送器30的第二实施例包括六个实施为圆环部段的、用于距离传感器50A的第二探测区域54A。As can be seen from FIG. 5 , the second embodiment of the coil carrier 60A comprises four first search coils 42A for the rotational angle sensor 40A arranged in a distributed manner around the central opening 62 of the coil carrier 60A and six coils arranged in the Detection coil 52A for distance sensor 50A at the edge of support 60A. As can be seen from FIG. 6 , the second exemplary embodiment of the first measured value transmitter 20 comprises three first, adjoining the central opening 26 of the base body 22A, embodied as ring segments, for the rotational angle sensor 40A. The detection areas 44A do not correspond to integer multiples in their angular relationship to each other. The second exemplary embodiment of the second measured value transmitter 30 includes six second detection fields 54A designed as circular ring segments for the distance sensor 50A.
如由图7和图8进一步可见的那样，在根据本发明的传感器组件1B的第二实施例中，第一测量值发送器20实施为碗形圆盘20B，其不可相对转动地与实施为套管16B的旋转部件10相连接。在示出的该实施例中，实施为碗形圆盘20B的第一测量值发送器20的基体22B为了建立与中央开口26的不可相对转动的连接而被压装到实施为套管16B的旋转部件10上。第二测量值发送器30在根据本发明的传感器组件1B的第二实施例中实施为圆盘30B。如由图7和图8进一步可见的那样，外螺纹16.1被切削到实施为套管16B的旋转部件10中，实施为圆盘30B的第二测量值发送器30的基体32B以在中央开口36的壁部36.1处引入的内螺纹36.2拧到该外螺纹上并且沿轴向引导。根据本发明的传感器组件1B的在图7中示出的第一位置相应于旋转部件10的顺时针旋转止挡，其中，在第二测量值发送器30的端面38与线圈支架60B的表面之间具有最大距离h1。根据本发明的传感器组件1B的在图8中示出的第二位置相应于旋转部件10的逆时针旋转止挡，其中，在第二测量值发送器30的端面38与线圈支架60B的表面之间具有最小间距离h2。如由图7和图8进一步可见的那样，实施为圆盘30B的第二测量值发送器30的基体32B与位置无关地沉入到实施为碗形圆盘20B的第一测量值发送器20的凹处24中。为了能够实现无问题的沉入或者轴向的移动，第二测量值发送器30的基体32B的外周边32.1相对于在第一测量值发送器20的基体22B中的凹处24的内壁24.1具有可预定的距离。为了阻止可沿轴向运动的第二测量值发送器30的转动运动并且释放轴向运动14，设置有至少一个锚定件7。在示出的实施例中，锚定件7包括两个销钉，其引导穿过在第二测量值发送器30的基体32B中的相应的开口。As can further be seen from FIGS. 7 and 8 , in a second embodiment of the sensor assembly 1B according to the invention, the first measured value transmitter 20 is embodied as a bowl-shaped disc 20B, which is non-rotatably connected to the embodiment as The rotating part 10 of the bushing 16B is connected. In the exemplary embodiment shown, the base body 22B of the first measured value transmitter 20 embodied as a bowl-shaped disc 20B is press-fitted to the socket 16B embodied as a bushing 16B in order to establish a non-rotatable connection with the central opening 26 . on the rotating part 10. The second measured value transmitter 30 is embodied as a disc 30B in the second embodiment of the sensor assembly 1B according to the invention. As can further be seen from FIGS. 7 and 8 , an external thread 16 . The internal thread 36.2 introduced at the wall 36.1 of the 10 is screwed onto this external thread and guided in the axial direction. The first position of the sensor assembly 1B according to the invention shown in FIG. 7 corresponds to the clockwise rotation stop of the rotary part 10 , wherein between the end face 38 of the second measured value transmitter 30 and the surface of the coil carrier 60B There is a maximum distance h1 between them. The second position of the sensor assembly 1B according to the invention shown in FIG. 8 corresponds to the counterclockwise rotation stop of the rotary part 10 , wherein between the end face 38 of the second measured value transmitter 30 and the surface of the coil carrier 60B There is a minimum distance h2 between them. As can further be seen from FIGS. 7 and 8 , the base body 32B of the second measured value transmitter 30 embodied as a disc 30B sinks into the first measured value transmitter 20 embodied as a bowl-shaped disc 20B independently of the position. In the recess 24 of. In order to enable problem-free dipping or axial displacement, the outer periphery 32 . 1 of the base body 32B of the second measured value transmitter 30 has a Predeterminable distance. In order to prevent the rotational movement of the axially movable second measured value transmitter 30 and to release the axial movement 14 , at least one anchor 7 is provided. In the exemplary embodiment shown, the anchor 7 comprises two pins which are guided through corresponding openings in the base body 32B of the second measured value transmitter 30 .
如由图9可见的那样，线圈支架60B的第三实施例包括六个在实施为圆盘的线圈支架60B的边缘处分布地布置的、用于转动角度传感器40B的第一探测线圈42B和环形的围绕线圈支架60B的中央开口62布置的、用于距离传感器50B的第二探测线圈52B。如由图10可见的那样，第一测量值发送器20的第三实施例包括一个实施为圆环部段的、用于转动角度传感器40B的第一探测区域44B。第二测量值发送器30的第三实施例包括毗邻于基体32B的中央开口36的、实施为环形的圆环的、用于距离传感器50B的第二探测区域54B。As can be seen from FIG. 9 , the third exemplary embodiment of the coil carrier 60B comprises six first search coils 42B for the rotational angle sensor 40B and an annular The second search coil 52B for the distance sensor 50B is arranged around the central opening 62 of the coil carrier 60B. As can be seen from FIG. 10 , the third exemplary embodiment of the first measured value transmitter 20 includes a first detection region 44B designed as a ring segment for the rotational angle sensor 40B. The third exemplary embodiment of the second measured value transmitter 30 comprises a second detection region 54B for the distance sensor 50B, which is embodied as an annular ring, adjoining the central opening 36 of the base body 32B.
如由图11可见的那样，线圈支架60B的第四实施例包括六个在线圈支架60B的边缘处分布地布置的、用于转动角度传感器40B的第一探测线圈42B和四个围绕线圈支架60B的中央开口62布置的、用于距离传感器50B的线圈52B。如由图12可见的那样，第一测量值发送器20的第四实施例包括四个实施为圆环部段的、用于转动角度传感器40B的第一探测区域44B，其彼此的角度关系并非相应于整数倍。第二测量值发送器30的第四实施例包括四个毗邻于基体22B的中央开口26的、实施为圆环部段的、用于距离传感器50B的第二探测区域54B。As can be seen from FIG. 11 , the fourth embodiment of the coil holder 60B comprises six first search coils 42B for the rotation angle sensor 40B arranged in a distributed manner at the edge of the coil holder 60B and four coil holders surrounding the coil holder 60B. The central opening 62 is arranged for the coil 52B of the distance sensor 50B. As can be seen from FIG. 12 , the fourth exemplary embodiment of the first measured value transmitter 20 comprises four first detection regions 44B embodied as circular ring segments for the rotational angle sensor 40B, which are not angularly related to one another. corresponds to an integer multiple. The fourth exemplary embodiment of second measured value transmitter 30 comprises four second detection regions 54B for distance sensor 50B, which are designed as circular ring segments, adjoining central opening 26 of base body 22B.
如由图13和图14进一步可见的那样，在根据本发明的传感器组件1C的第三实施例中，第一测量值发送器20类似于第二实施例同样实施为碗形圆盘20C，其不可相对转动地与实施为套管16C的旋转部件10相连接。在示出的该实施例中，实施为碗形圆盘20C的第一测量值发送器20的基体22C为了建立与中央开口26的不可相对转动的连接而被压装到实施为套管16C的旋转部件10上。在根据本发明的传感器组件1C的第三实施例中，第二测量值发送器30类似于第一实施例同样实施为圆盘30C。区别于第二实施例，实施为套管16C的旋转部件10不具有外螺纹。实施为圆盘30C的第二测量值发送器30的基体32C与中央开口36的壁部36.1具有间隙地在实施为套管16C的旋转部件10处被引导。此外，实施为碗形圆盘20C的第一测量值发送器20的基体22C在凹处24的内壁24.1处具有内螺纹24.2，在其中布置在实施为圆盘30C的第二测量值发送器30的基体32C的外周边32.1处的外螺纹32.2被拧入并且沿轴向引导。根据本发明的传感器组件1C的在图13中示出的第一位置相应于旋转部件10的顺时针旋转止挡，其中，在第二测量值发送器30的端面38与线圈支架60C的表面之间具有最大距离h1。根据本发明的传感器组件1C的在图14中示出的第二位置相应于旋转部件10的逆时针旋转止挡，其中，在第二测量值发送器30的端面38与线圈支架60C的表面之间具有最小距离h2。如由图13和图14进一步可见的那样，实施为圆盘30C的第二测量值发送器30的基体32C与位置无关地沉入到实施为碗形圆盘20C的第一测量值发送器20的凹处24中。为了阻止可沿轴向运动的第二测量值发送器30的转动运动和释放轴向运动14，设置有至少一个锚定件7。在示出的该实施例中，锚定件7类似于第二实施例包括两个销钉，其引导穿过在第二测量值发送器30的基体32C中的相应的开口。As can further be seen from FIGS. 13 and 14 , in a third embodiment of the sensor assembly 1C according to the invention, the first measured value transmitter 20 is likewise implemented as a bowl-shaped disc 20C similar to the second embodiment, which It is connected in a rotationally fixed manner to the rotary part 10 embodied as a sleeve 16C. In the exemplary embodiment shown, the base body 22C of the first measured value transmitter 20 embodied as a bowl-shaped disc 20C is press-fitted into the base body 22C embodied as a bushing 16C in order to establish a non-rotatable connection with the central opening 26 . Rotating part 10. In the third exemplary embodiment of the sensor assembly 1C according to the invention, the second measured value transmitter 30 is likewise embodied as a disk 30C analogously to the first exemplary embodiment. In contrast to the second embodiment, the rotating part 10 embodied as a sleeve 16C has no external thread. The base body 32C of the second measured value transmitter 30 embodied as a disk 30C is guided with play from the wall 36 . 1 of the central opening 36 on the rotating part 10 embodied as a bushing 16C. Furthermore, the base body 22C of the first measured value transmitter 20 embodied as a bowl-shaped disk 20C has an internal thread 24.2 on the inner wall 24.1 of the recess 24, in which the second measured value transmitter 30 embodied as a disk 30C is arranged. The external thread 32.2 at the outer periphery 32.1 of the basic body 32C is screwed in and guided in the axial direction. The first position shown in FIG. 13 of the sensor assembly 1C according to the invention corresponds to the clockwise rotation stop of the rotary part 10 , wherein between the end face 38 of the second measured value transmitter 30 and the surface of the coil carrier 60C There is a maximum distance h1 between them. The second position shown in FIG. 14 of the sensor assembly 1C according to the invention corresponds to the counterclockwise rotation stop of the rotary part 10 , wherein between the end face 38 of the second measured value transmitter 30 and the surface of the coil carrier 60C There is a minimum distance h2 between them. As can further be seen from FIGS. 13 and 14 , the base body 32C of the second measured value transmitter 30 embodied as a disc 30C sinks into the first measured value transmitter 20 embodied as a bowl-shaped disc 20C independently of the position. In the recess 24 of. In order to prevent the rotational movement of the axially movable second measured value transmitter 30 and to release the axial movement 14 , at least one anchoring element 7 is provided. In the exemplary embodiment shown, the anchor 7 comprises two pins, similar to the second exemplary embodiment, which are guided through corresponding openings in the base body 32C of the second measured value transmitter 30 .
螺纹(多圈回转的距离信息通过距离传感器经由该螺纹来探测)可非常粗糙地设计，因为精确的角度位置(0°-360°)通过转动角度传感器由旋转来确定。然而，经由距离信息同样可实现所确定的转动角度的进一步的可信性检查。此外，通过线圈组件与多个探测区域的重叠和探测线圈被评估和控制单元的单独的可能的读取和评估可提供转动角度信息的冗余。由此得出多种变体方案。因此，例如关于距离变化的信息可与角度信息组合。此外，可使用不同数量的线圈。此外，线圈可同时或依次被读取(多路复用)。线圈例如可分别单独地与评估和控制单元相连接。备选地，线圈可经由其端口完全或部分地合并并且然后被引导至评估和控制单元。The thread, via which the distance information of the multiturn is detected by the distance sensor, can be designed very coarsely, since the exact angular position (0°-360°) is determined by rotation by the rotational angle sensor. However, a further plausibility check of the determined angle of rotation is likewise possible via the distance information. Furthermore, the overlapping of the coil arrangement with multiple detection fields and the separate possible reading and evaluation of the detection coils by the evaluation and control unit can provide redundancy of the rotational angle information. A number of variants result from this. Thus, for example, information about distance changes can be combined with angular information. Additionally, different numbers of coils may be used. Furthermore, the coils can be read simultaneously or sequentially (multiplexed). For example, the coils can be connected individually to the evaluation and control unit. Alternatively, the coil can be fully or partially incorporated via its ports and then led to the evaluation and control unit.
本发明的实施方式提供了一种用于探测车辆中的旋转部件的转动角度的传感器组件，其通过将转动运动转变成机械的位移变化在旋转部件的多圈回转的情况下也总是提供明确的旋转位置。有利地，在电子装置失效的情况下，在机械的位移变化位置中得出转动运动。由于机械的位移变化，即使在切断点火或断开电池之后也提供正确的绝对的转动角度，其中，同时可实现特别可靠的运行或者转动角度的特别可靠的识别。Embodiments of the present invention provide a sensor assembly for detecting the angle of rotation of a rotating part in a vehicle, which by converting the rotational movement into a mechanical displacement change always provides a clear rotation position. Advantageously, in the event of a failure of the electronics, a rotational movement is produced in the mechanical displacement change position. Due to the mechanical displacement change, the correct absolute rotational angle is provided even after switching off the ignition or disconnecting the battery, wherein at the same time a particularly reliable operation or a particularly reliable detection of the rotational angle can be achieved.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310221193DE102013221193A1 (en) | 2013-10-18 | 2013-10-18 | Sensor arrangement for detecting angles of rotation on a rotating component in a vehicle |
| DE102013221193.7 | 2013-10-18 | ||
| PCT/EP2014/070105WO2015055382A1 (en) | 2013-10-18 | 2014-09-22 | Sensor assembly for detecting angles of rotation on a rotating component in a vehicle |
| Publication Number | Publication Date |
|---|---|
| CN105637325A CN105637325A (en) | 2016-06-01 |
| CN105637325Btrue CN105637325B (en) | 2018-09-14 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201480056708.7AExpired - Fee RelatedCN105637325B (en) | 2013-10-18 | 2014-09-22 | Sensor module for the rotational angle for detecting the rotary part in vehicle |
| Country | Link |
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| JP (1) | JP6192826B2 (en) |
| CN (1) | CN105637325B (en) |
| DE (1) | DE102013221193A1 (en) |
| WO (1) | WO2015055382A1 (en) |
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