CN101240734A - Vehicle emission monitoring and remote fault diagnosis system - Google Patents

Abstract

Translated fromChinese

本发明涉及一种车辆排放监控和远程故障诊断系统，包括车辆排放监控和远程故障诊断装置和信息中心，车辆排放监控和远程故障诊断装置包括主控单元、OBD接口单元、LCD信息显示屏、GPRS通信模块、GPS定位模块；信息中心包括计算机硬件和管理软件。车辆排放监控和远程故障诊断装置实时读取车辆的排放和故障信息，并把排放、故障、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到信息进行相应处理，把处理信息发送给装置，同时给车主的手机发送提示信息，从而实现车辆排放监控、故障监测、维护和管理合为一体。

The invention relates to a vehicle emission monitoring and remote fault diagnosis system, comprising a vehicle emission monitoring and remote fault diagnosis device and an information center, the vehicle emission monitoring and remote fault diagnosis device including a main control unit, an OBD interface unit, an LCD information display screen, a GPRS Communication module, GPS positioning module; information center includes computer hardware and management software. The vehicle emission monitoring and remote fault diagnosis device reads the emission and fault information of the vehicle in real time, and sends the emission, fault, vehicle identification, vehicle position, and speed information to the information center through GPRS, and the information center performs corresponding processing according to the received information. The processing information is sent to the device, and at the same time, a prompt message is sent to the owner's mobile phone, so as to realize the integration of vehicle emission monitoring, fault monitoring, maintenance and management.

Description

Translated fromChinese

车辆排放监控和远程故障诊断系统Vehicle emission monitoring and remote fault diagnosis system

技术领域technical field

本发明是一种涉及车辆排放监控和远程故障诊断系统，可以广泛的应用于汽车排放管理和汽车故障维修管理中。The invention relates to a vehicle emission monitoring and remote fault diagnosis system, which can be widely used in automobile emission management and automobile fault maintenance management.

背景技术Background technique

目前，北京已开始实施国III汽车排放标准。这一标准是国家第三阶段的排放标准，它相当于欧洲III号排放标准，对CO、NOX、HC、CO2采取更严格的限制。而要达到这一目标就要通过技术提升来解决，在汽车运行全程中不断监视尾气的排放质量，一旦发现汽车在运行过程中与控制尾气排放的相关元件出现故障，就会立刻报警，从而提醒驾驶员立即对车进行检修，以确保汽车时刻处于绿色环保状态。为此，国III汽车排放标准强制规定：新车必须安装OBD车载自诊断系统(即On-Board Diagnostics的缩写)。该系统特点在于检测点增多、检测系统增多，在三元催化转化器的进、出口上都有氧传感器。At present, Beijing has begun to implement the National III vehicle emission standards. This standard is the third phase of the national emission standard, which is equivalent to the European III emission standard, and adopts stricter restrictions on CO, NOX, HC, and CO2. To achieve this goal, it is necessary to solve it through technological improvement. The exhaust emission quality is constantly monitored during the whole process of vehicle operation. Once the vehicle is found to be malfunctioning in the components related to exhaust emission control during operation, it will immediately call the police to remind The driver immediately overhauls the car to ensure that the car is always in a green state. For this reason, the National III automobile emission standard stipulates that new cars must be equipped with OBD on-board self-diagnosis system (that is, the abbreviation of On-Board Diagnostics). The system is characterized by more detection points and more detection systems, and there are oxygen sensors at the inlet and outlet of the three-way catalytic converter.

实际上，自1980年代开始，世界各汽车制造厂就在车辆上配备全功能的控制和诊断系统。这些新系统在车辆发生故障时可以警示驾驶，并且在维修时可经由特定的方式读取故障代码，以加快维修时间，这便是车载诊断系统。到了1985年，美国加利福尼亚州大气资源局(CARB)开始制定法规，要求各车辆制造厂在加利福尼亚州销售的车辆必须装置OBD系统，这些车辆上配备的OBD系统被称为OBD-I(第一代随车诊断系统)。In fact, since the 1980s, automobile manufacturers around the world have equipped their vehicles with full-featured control and diagnostic systems. These new systems can warn the driver when the vehicle fails, and can read the fault code in a specific way during maintenance to speed up the maintenance time. This is the on-board diagnostic system. In 1985, the California Air Resources Bureau (CARB) began to formulate regulations requiring all vehicle manufacturers to install OBD systems on vehicles sold in California. The OBD systems equipped on these vehicles are called OBD-I (first generation on-board diagnostic system).

起初加利福尼亚州大气资源局制定OBD-I的用意是要减少车辆废气排放以及简化维修流程，但由于OBD-I不够严谨，遗漏了三元催化器的效率监测、油气蒸发系统的泄漏侦测以及发动机是否缺火的检测，导致碳氢化合物排放增加。再加上OBD-I的监测线路敏感度不高，等到发觉车辆故障再进厂维修时，事实上已排放了大量的废气。At first, the California Air Resources Bureau formulated OBD-I with the intention of reducing vehicle exhaust emissions and simplifying the maintenance process. However, due to the lack of rigor in OBD-I, the efficiency monitoring of the three-way catalytic converter, the leakage detection of the oil and gas evaporation system, and the engine Detection of misfires, resulting in increased hydrocarbon emissions. In addition, the sensitivity of the OBD-I monitoring circuit is not high, and when the vehicle is found to be faulty and then sent to the factory for maintenance, a large amount of exhaust gas has actually been emitted.

OBD-I除了无法有效地控制废气排放，它还引起另一个严重的问题：各车辆制造厂发展了自己的诊断系统、检修流程、专用工具等，给非特约维修站技师的维修工作带来许多问题。加利福尼亚州大气资源局(CARB)眼见OBD-I系统离当初制定的目标愈来愈远，即开始发展第二代随车诊断系统(OBD-II)。In addition to being unable to effectively control exhaust emissions, OBD-I has also caused another serious problem: each vehicle manufacturer has developed its own diagnostic systems, maintenance procedures, special tools, etc. question. The California Air Resources Bureau (CARB) saw that the OBD-I system was farther and farther away from the original goal, and began to develop the second generation of on-board diagnostic system (OBD-II).

OBD-II可在发动机的运行状况中持续不断地监控汽车尾气，一旦发现尾气超标，就会马上发出警报。当系统出现故障时，故障(MIL)灯或检查发动机(Check Engine)警告灯亮，同时发动机电脑将故障信息存入存储器，通过程序可以将故障代码从发动机电脑中读出。根据故障码的提示，维修人员就能迅速准确地确定故障的性质和部位。OBD-II can continuously monitor the exhaust gas of the vehicle during the running state of the engine, and once the exhaust gas is found to exceed the standard, an alarm will be issued immediately. When the system breaks down, the fault (MIL) light or check engine (Check Engine) warning light is on, and the engine computer stores the fault information into the memory, and the fault code can be read from the engine computer through the program. According to the prompt of the fault code, the maintenance personnel can quickly and accurately determine the nature and location of the fault.

OBD-II系统技术先进，对探测排放状况十分有效。当发现故障报警灯点亮时，应立即将车送到维修站进行检修。但对驾驶者是否接受MIL的警告，OBD-II是无能为力的，而本发明车辆排放监控和远程故障诊断系统解决了这个问题。The OBD-II system is technologically advanced and very effective for detecting emissions. When the fault alarm light is found to be on, the car should be sent to the maintenance station for overhaul immediately. But whether the driver accepts the warning of MIL, OBD-II is powerless, and the vehicle emission monitoring and remote fault diagnosis system of the present invention solves this problem.

本发明车辆排放监控和远程故障诊断系统的主要目的是使汽车的检测、维护和管理合为一体，以满足环境保护的要求。本发明车辆排放监控和远程故障诊断系统通过OBD接口会分别进入发动机、变速器、ABS等系统ECU中去读取故障码和其它相关数据，并利用GPRS通讯系统，将车辆的身份代码、故障码及所在位置等信息自动通告管理部门，管理部门根据该车辆排放问题的等级对其发出指令，包括去哪里维修的建议，解决排放问题的时限等，还可对超出时限的违规者的车辆发出禁行指令。因此，本发明车辆排放监控和远程故障诊断系统能对车辆排放问题向驾驶者发出警告，还能对违规者进行惩罚，并可以远程故障管理和信息服务。The main purpose of the vehicle emission monitoring and remote fault diagnosis system of the present invention is to integrate the detection, maintenance and management of automobiles to meet the requirements of environmental protection. The vehicle emission monitoring and remote fault diagnosis system of the present invention will respectively enter the ECU of the engine, transmission, ABS and other systems through the OBD interface to read the fault code and other related data, and use the GPRS communication system to send the vehicle's identity code, fault code and The location and other information will be automatically notified to the management department, and the management department will issue instructions to the vehicle according to the level of the vehicle's emission problems, including suggestions on where to go for repairs, and the time limit for solving the emission problem. instruction. Therefore, the vehicle emission monitoring and remote fault diagnosis system of the present invention can warn drivers of vehicle emission problems, punish offenders, and provide remote fault management and information services.

专利车辆故障诊断系统(CN1745008)是一种故障检测、故障识别和故障恢复的系统，与本发明车辆排放监控和远程故障诊断系统相比，专利车辆故障诊断系统(CN1745008)没有排放监控和管理功能，在故障诊断中仅用于故障检测、故障识别和故障恢复，没有大型车辆故障数据库支持，并且没有提供维修维修厂的信息服务等。专利车辆故障诊断系统(CN1745008)在传输的信息中，没有提供GPS的信息等车辆位置信息。The patented vehicle fault diagnosis system (CN1745008) is a system for fault detection, fault identification and fault recovery. Compared with the vehicle emission monitoring and remote fault diagnosis system of the present invention, the patented vehicle fault diagnosis system (CN1745008) has no emission monitoring and management functions , is only used for fault detection, fault identification and fault recovery in fault diagnosis, without the support of a large vehicle fault database, and does not provide information services for maintenance and repair plants. The patented vehicle fault diagnosis system (CN1745008) does not provide vehicle location information such as GPS information in the transmitted information.

专利基于互连网OBD-II标准汽车故障远程检测系统(CN1406794)是一种通过互联网实现远程数据传输和诊断，从而为用户提供包括汽车检测、维修咨询、汽车配件和整车销售、汽车技术咨询、汽车消费娱乐等服务。该发明是基于互联网的服务系统，所以移动不方便，并且车载通信通过计算机和中心信息系统联系，不能一直提供服务，并且使用车载计算机也不方便。The patented Internet-based OBD-II standard automobile fault remote detection system (CN1406794) is a remote data transmission and diagnosis through the Internet, thereby providing users with services including automobile detection, maintenance consultation, auto parts and vehicle sales, automobile technical consultation, automobile Consumer entertainment and other services. This invention is a service system based on the Internet, so it is inconvenient to move, and the vehicle-mounted communication is connected with the central information system through a computer, so the service cannot be provided all the time, and it is also inconvenient to use the vehicle-mounted computer.

本发明车辆排放监控和远程故障诊断系统能提供远程无线故障诊断、GPS信息服务、排放监控和GPRS通信功能等，使汽车的检测、维护和管理合为一体。The vehicle discharge monitoring and remote fault diagnosis system of the invention can provide remote wireless fault diagnosis, GPS information service, discharge monitoring and GPRS communication functions, etc., so that the detection, maintenance and management of automobiles are integrated.

发明内容Contents of the invention

一种车辆排放监控和远程故障诊断系统，包括基于GPRS的车辆排放监控和远程故障诊断装置和信息中心，基于GPRS的车辆排放监控和远程故障诊断装置包括主控单元、OBD接口单元、LCD信息显示屏、GPRS通信模块、GPS定位模块；信息中心包括计算机硬件和管理软件，其特征在于：A vehicle emission monitoring and remote fault diagnosis system, comprising a GPRS-based vehicle emission monitoring and remote fault diagnosis device and an information center, the GPRS-based vehicle emission monitoring and remote fault diagnosis device including a main control unit, an OBD interface unit, and an LCD information display Screen, GPRS communication module, GPS positioning module; Information center comprises computer hardware and management software, is characterized in that:

通过基于GPRS的车辆排放监控和远程故障诊断装置，实时读取车辆的排放信息，车辆的排放超国家排放标准时提醒司机，并把超标排放信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的排放信息，给装置发出的警告和处罚信息，同时给车主的手机发送提示信息，并上报环保管理部门；通过基于GPRS的车辆排放监控和远程故障诊断装置，读取车辆故障信息，当车辆发生故障时给出提示，并把故障信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的故障信息，给装置发出的故障的原因和故障的部位信息，同时给车主的手机发送提示信息，根据车辆位置提供维修厂信息。Through the vehicle emission monitoring and remote fault diagnosis device based on GPRS, the emission information of the vehicle can be read in real time, and the driver will be reminded when the emission of the vehicle exceeds the national emission standard, and the excessive emission information, vehicle identification, vehicle position and speed information will be sent to the information via GPRS center, the information center sends warning and punishment information to the device according to the received emission information, and at the same time sends reminder information to the owner's mobile phone, and reports to the environmental protection management department; through the vehicle emission monitoring and remote fault diagnosis device based on GPRS, read Vehicle failure information, when the vehicle fails, it will give a prompt, and send the failure information, vehicle identification, vehicle position, and speed information to the information center through GPRS. Information on the location of the fault, and at the same time send a reminder message to the owner's mobile phone, and provide information on the repair shop according to the location of the vehicle.

基于GPRS的车辆排放监控和远程故障诊断装置，安装车辆内，特征为通过OBD接口单元读取车辆故障诊断信息和车辆排放信息，通过GPS模块读取车辆位置、速度、方向信息，并通过GPRS和信息中心通信。GPRS-based vehicle emission monitoring and remote fault diagnosis device, installed in the vehicle, characterized by reading vehicle fault diagnosis information and vehicle emission information through the OBD interface unit, reading vehicle position, speed, and direction information through the GPS module, and through GPRS and Information center communication.

信息中心的管理软件，特征在于能接收超标排放信息，并根据超标排放信息时间和招标程度，给不同警告信息，并能把提示信息发送给车主的手机上；能接收超标故障信息，根据故障代码识别故障部位和故障原因，并给车主的手机发送提示信息；信息中心软件系统的数据库中有各个厂家和各种型号的车辆维修资料，并实时更新车辆维修数据库资料。The management software of the information center is characterized in that it can receive the information of exceeding the standard emission, and give different warning messages according to the time and degree of bidding of the information of exceeding the standard emission, and can send the prompt information to the mobile phone of the car owner; it can receive the information of exceeding the standard fault, and according to the fault code Identify the location of the fault and the cause of the fault, and send a prompt message to the mobile phone of the owner; the database of the information center software system contains the maintenance data of various manufacturers and models of vehicles, and updates the data of the vehicle maintenance database in real time.

附图说明Description of drawings

图1为车辆排放监控和远程故障诊断系统结构图1。Figure 1 is a structural diagram of the vehicle emission monitoring and remote fault diagnosis system.

图2为车辆排放监控和远程故障诊断系统工作流程图2。Figure 2 is the workflow 2 of the vehicle emission monitoring and remote fault diagnosis system.

具体实施方式Detailed ways

车辆排放监控和远程故障诊断系统的工作流程如图2。The workflow of the vehicle emission monitoring and remote fault diagnosis system is shown in Figure 2.

排放监控流程：通过基于GPRS的车辆排放监控和远程故障诊断装置，实时读取车辆的排放信息，车辆的排放超国家排放标准时提醒司机，并把超标排放信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的排放信息，给装置发出的警告和处罚信息，同时给车主的手机发送提示信息，并上报环保管理部门。Emission monitoring process: Through the GPRS-based vehicle emission monitoring and remote fault diagnosis device, real-time reading of vehicle emission information, reminding the driver when the vehicle emission exceeds the national emission standard, and passing the excess emission information, vehicle identification, vehicle location and speed information through GPRS sends to the information center, and the information center sends warning and punishment information to the device according to the received emission information, and at the same time sends reminder information to the owner's mobile phone, and reports to the environmental protection management department.

远程故障诊断流程：通过基于GPRS的车辆排放监控和远程故障诊断装置，读取车辆故障信息，当车辆发生故障时给出提示，并把故障信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的故障信息，给装置发出的故障的原因和故障的部位信息，同时给车主的手机发送提示信息，根据车辆位置提供维修厂信息。Remote fault diagnosis process: Through GPRS-based vehicle emission monitoring and remote fault diagnosis device, read vehicle fault information, give prompts when the vehicle fails, and send fault information, vehicle identification, vehicle position and speed information to Information center. Based on the received fault information, the information center sends information on the cause of the fault and the location of the fault to the device, and at the same time sends prompt information to the owner's mobile phone, and provides information on the repair shop according to the location of the vehicle.

Claims (3)

Translated fromChinese

1. 一种车辆排放监控和远程故障诊断系统，包括基于GPRS的车辆排放监控和远程故障诊断装置和信息中心，基于GPRS的车辆排放监控和远程故障诊断装置包括主控单元、OBD接口单元、LCD信息显示屏、GPRS通信模块、GPS定位模块；信息中心包括计算机硬件和管理软件，其特征在于：1. A vehicle emission monitoring and remote fault diagnosis system, comprising a GPRS-based vehicle emission monitoring and remote fault diagnosis device and an information center, a GPRS-based vehicle emission monitoring and remote fault diagnosis device comprising a main control unit, an OBD interface unit, an LCD Information display screen, GPRS communication module, GPS positioning module; Information center comprises computer hardware and management software, is characterized in that:通过基于GPRS的车辆排放监控和远程故障诊断装置，实时读取车辆的排放信息，车辆的排放超国家排放标准时提醒司机，并把超标排放信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的排放信息，给装置发出的警告和处罚信息，同时给车主的手机发送提示信息，并上报环保管理部门；通过基于GPRS的车辆排放监控和远程故障诊断装置，读取车辆故障信息，当车辆发生故障时给出提示，并把故障信息、车辆标识和车辆位置、速度信息通过GPRS发送到信息中心，信息中心根据接收到的故障信息，给装置发出的故障的原因和故障的部位信息，同时给车主的手机发送提示信息，根据车辆位置提供维修厂信息。Through the vehicle emission monitoring and remote fault diagnosis device based on GPRS, the emission information of the vehicle can be read in real time, and the driver will be reminded when the emission of the vehicle exceeds the national emission standard, and the excessive emission information, vehicle identification, vehicle position and speed information will be sent to the information via GPRS center, the information center sends warning and punishment information to the device according to the received emission information, and at the same time sends prompt information to the owner's mobile phone, and reports to the environmental protection management department; through the vehicle emission monitoring and remote fault diagnosis device based on GPRS, read Vehicle failure information, when the vehicle fails, it will give a prompt, and send the failure information, vehicle identification, vehicle position, and speed information to the information center through GPRS. Information on the location of the fault, and at the same time send a reminder message to the owner's mobile phone, and provide information on the repair shop according to the location of the vehicle.2. 根据权利要求1所述基于GPRS的车辆排放监控和远程故障诊断装置，安装车辆内，特征为通过OBD接口单元读取车辆故障诊断信息和车辆排放信息，通过GPS模块读取车辆位置、速度、方向信息，并通过GPRS和信息中心通信。2. According to the GPRS-based vehicle emission monitoring and remote fault diagnosis device according to claim 1, installed in the vehicle, it is characterized in that the vehicle fault diagnosis information and vehicle emission information are read through the OBD interface unit, and the vehicle position and speed are read through the GPS module , direction information, and communicate with the information center through GPRS.3. 根据权利要求1所述信息中心的管理软件，特征在于能接收超标排放信息，并根据超标排放信息时间和招标程度，给不同警告信息，并能把提示信息发送给车主的手机上；能接收超标故障信息，根据故障代码识别故障部位和故障原因，并给车主的手机发送提示信息。3. The management software of the information center according to claim 1, characterized in that it can receive the information of excessive emission, and give different warning information according to the time of the information of excessive emission and the degree of bidding, and can send the prompt information to the mobile phone of the car owner; Receive exceeding standard fault information, identify the fault location and fault cause according to the fault code, and send a prompt message to the owner's mobile phone.

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