Summary of the invention
The present invention is intended to propose a kind of filling battery-driven car and changes electric architecture and method.
According to one embodiment of the invention, propose filling of a kind of battery-driven car and change electric framework, comprising:
Battery pack, battery pack comprises main battery, increases journey battery and secondary cell, the electric energy that the electric energy that main battery provides the electric energy of the daily traveling of battery-driven car, increasing journey battery provides battery-driven car extra long distance to travel, secondary cell provide battery-driven car to meet an urgent need short range traveling, wherein main battery and increasing journey battery do not carry out vehicle-mounted charge, but can change, secondary cell carries out vehicle-mounted charge but does not change;
Power dispenser, main battery and increasing journey battery export electric energy stream to power dispenser, have two-way electric energy stream between power dispenser and secondary cell;
Travel driver element, travel drive unit drives battery-driven car and travel, between power dispenser and traveling driver element, have two-way electric energy stream;
Low voltage equipment, power dispenser exports electric energy stream to low voltage equipment, works through voltage transitions rear drive low voltage equipment.
In one embodiment, the filling of this battery-driven car is changed electric framework and is also comprised electric energy metrical unit, main battery and increase the electric energy stream that journey battery exports and first flow through electric energy metrical unit, by electric energy metrical unit stream to power dispenser.
In one embodiment, the filling of this battery-driven car is changed electric framework and is also comprised display unit, power dispenser and main battery, increase journey battery, between secondary cell and electric energy metrical unit, have flow of information, have flow of information between display unit and power dispenser, the information that display unit display flow of information carries.
In one embodiment, secondary cell exports electric energy stream to power dispenser and travels to drive battery-driven car, or power dispenser is secondary cell charging to secondary cell output electric energy stream.Power dispenser exports electric energy stream to traveling driver element and drives battery-driven car to travel, or traveling driver element reclaims electric energy when braking and exports electric energy stream to power dispenser.
In one embodiment, main battery, increase journey battery and secondary cell and be arranged on respectively and be positioned at main battery storehouse bottom battery-driven car, increase journey battery compartment and secondary cell storehouse.Main battery storehouse has the door can opened towards bottom, and main battery storehouse also has data exchange interface and telltale mark.Increase journey battery compartment and there is the door can opened towards bottom, increase on journey battery compartment and also there is data exchange interface and telltale mark.Secondary cell is connected to the charger with charging inlet, carries out vehicle-mounted charge by charger.
In one embodiment, power dispenser flows through DC/DC changer to the electric energy that low voltage equipment exports, and is supplied to low voltage equipment after converting low voltage to.
According to one embodiment of the invention, proposing a kind of battery change method of battery-driven car, changing having the above-mentioned battery filling the battery-driven car changing electric framework, what wherein change is main battery or increasing journey battery, and battery change method comprises:
Battery-driven car sails Reserved Parking into, and Reserved Parking is provided with passage in the position lower than ground, has the battery replacement device along passage movement in passage;
Battery replacement device moves to main battery storehouse or increases the below of journey battery compartment, positions and authenticating step;
Battery replacement device is opened main battery storehouse or is increased the door of journey battery compartment, removes the mechanical caging of main battery or increasing journey battery, takes off main battery to be charged or increase journey battery;
Battery replacement device carries main battery to be charged or increases journey battery and moves along passage, and main battery to be charged or increasing journey battery are moved to charge position, and obtains the main battery or increasing journey battery that have charged;
Battery replacement device moves along passage, returns below battery-driven car, the main battery charged or increasing journey battery is loaded main battery storehouse or increases journey battery compartment, mechanical caging, closes door.
In one embodiment, location and authenticating step comprise:
Battery replacement device is undertaken and main battery storehouse or the location increasing journey battery compartment by telltale mark;
Battery replacement device carries out authentication and battery parameter identification by data exchange interface.
The filling of battery-driven car of the present invention is changed electric framework and is distinguished battery according to the purposes of battery, different charging modes is adopted for different batteries, the high capacity cell often used is adopted and changes but not the mode of vehicle-mounted charge, small-capacity cells for Emergency use adopts the mode of vehicle-mounted charge, solves the contradiction of current battery-driven car in process of charging thus.
Detailed description of the invention
Solve filling of the battery-driven car that can popularize and change electric problem, one compares actv. mode and is: arrange battery-charging station with certain density, battery-charging station can by special line powering to alleviate the impact for electrical network.Battery-charging station continuous working, charges to battery continuously.And the battery of battery-driven car is removable form, when the battery electric quantity of battery-driven car is finished, battery-driven car goes to battery-charging station to change battery.Solve the problem of battery-charging station service efficiency, safe operation of electric network and battery altering convenience thus.In order to provide the different flying power requirements meeting battery-driven car, the battery compartment of no-go gauge lattice can be equipped with in battery-driven car, meet different flying power requirements in the mode of multiple battery combination.Accordingly, battery-driven car also possess to carry out charging between multiple battery, switch, charging etc. function.
Fig. 1 discloses and fills according to the battery-driven car of one embodiment of the invention the structural representation changing electric framework.Shown in figure 1, the filling of this battery-driven car is changed electric framework and is comprised:
Main battery 101, increasing journey battery 102, secondary cell 105, electric energy metrical unit 112, power dispenser 111, charger 104, display unit 106, traveling driver element 107, ECU (Electrical Control Unit) 108 and conv 110.
Main battery 101 is major impetus sources of battery-driven car, as the Power Reserve unit under normal service condition.The electricity of main battery 101 can meet daily long distance travel requirement, and such as, according to the difference of vehicle, the electricity of main battery 101 can meet the daily long distance travel requirement of 350km ~ 500km.The capacity of cell of main battery 101 is comparatively large, can quick-replaceable, but main battery can not vehicle-mounted charge, charges after can only uncarting in battery-charging station.As shown in Figure 1, main battery 101 exports main electric energy stream 113 to electric energy metrical unit 112.
Increase journey battery 102 for providing extra electric energy when needing extra long distance to travel.The capacity of cell increasing journey battery 102 is less than main battery 101, and the general electricity increasing journey battery 102 can meet the driving requirements of 100km ~ 150km, as supplementing when needing extra long distance to travel for main battery 101.Increasing journey battery 102 also can quick-replaceable, but equally can not vehicle-mounted charge, charges after can only uncarting in battery-charging station.Increase journey battery 102 can not be arranged on car when routine use, to alleviate the overall weight of vehicle.When needs extra long distance travels, then increasing journey battery 102 is installed.As shown in Figure 1, when having installed increasing journey battery 102, increasing journey battery 102 and having exported increasing journey electric energy stream 115 to electric energy metrical unit 112.When not installing increasing journey battery 102, there will not be and increase journey electric energy stream 115.
Electric energy metrical unit 112 converges main electric energy electric current 113 and increases journey electric energy stream 115 (if having installed increasing journey battery 102), measures the electric energy stream flowing through electric energy metrical unit 112.Electric energy metrical unit 112 exports the electric energy stream 117 through metering to power dispenser 111.Continue with reference to shown in figure 1, at main battery 101, increasing journey battery 102, between electric energy metrical unit 112 and power dispenser 111, except having the electric energy stream of transmission electric energy, also have flow of information, flow of information carries out data exchange between above-mentioned all parts.As shown in Figure 1, main battery flow of information 114 is there is between power dispenser 111 and main battery 101, exist between power dispenser 111 and increasing journey battery 102 and increase journey battery information stream 116, between power dispenser 111 and electric energy metrical unit 112, there is metrical information stream 118.
The electric energy that secondary cell 105 meets an urgent need traveling for providing battery-driven car short range.The capacity of secondary cell 105 is smaller, travels, generally only need the capacity of cell of 30km ~ 50km for emergent short range.Secondary cell 105, as emergency battery, is fixedly mounted in battery-driven car, can not change, but can carry out vehicle-mounted charge.In the embodiment shown in fig. 1, charger 104 is for charging to secondary cell 105 by external power supply.Charger 104 has charging inlet 103, and charging inlet 103 is connected to external source, by charging inlet 103 and charger 104, forms rechargeable electrical energy stream 119 and charge for secondary cell 105 between charger 104 and secondary cell 105.Meanwhile, between charger 104 and secondary cell 105, charge information stream 120 is also formed.Between secondary cell 105 and power dispenser 111, form two-way secondary cell electric energy stream 121, when secondary cell electric energy stream 121 flows to power dispenser 111 by secondary cell 105, have secondary cell 121 to provide electric energy to carry out the emergent traveling of short range.When secondary cell electric energy stream 121 flows to secondary cell 105 by power dispenser 111, power dispenser 111 can use from main battery 101 or the electric current that increases journey battery 102 as secondary cell 105 charges.The charging of secondary cell 105 is provided by external source by charger 104 usually, but when needed, also electric energy can be provided to be that secondary cell 105 charges by main battery 101 or increasing journey battery 102.Between secondary cell 105 and power dispenser 111, also there is secondary cell flow of information 122, secondary cell flow of information 122 provides the information of two-way secondary cell electric energy stream.
Power dispenser 111 provides electric energy stream to traveling driver element 107, ECU (Electrical Control Unit) 108 and conv 110.Travel the main actuating device that driver element 107 is battery-driven cars, be generally high-performance electrical motor.In the embodiment shown in fig. 1, running driving device 107 is illustrated as being connected to wheel.Exist between power dispenser 111 and traveling driver element 107 and drive electric energy stream 123.Electric energy stream 123 is driven to be illustrated as being two-way.In the normal process travelled, the direction of electric energy stream is driven to be from power dispenser 111 to traveling driver element 107.Electric energy from main battery 101 and/or increasing journey battery 102 (if present) and/or secondary cell 105 exports to and travels driver element 107 by power dispenser 111, drives battery-driven car to travel.When vehicle brake, travel the electrical motor meeting recovery section energy of driver element 107, this part energy reclaimed is fed back to power dispenser 111.When braking recuperated energy, the direction of electric energy stream 123 is driven to be from traveling driver element 107 to power dispenser 111.Further, the brake energy reclaimed by traveling driver element 107 can be provided to secondary cell 105 by power dispenser 111 by secondary cell electric energy stream 121 and charge for secondary cell 105.
The driving electric energy stream 123 of power dispenser 111 is also provided to conv 110.Conv 110 is DC/DC convs, for high-tension current is converted to low tension, such as, is converted to the 12V direct current (DC) that vehicle-mounted low-voltage equipment is conventional.Conv 110 exports low tension current 109.Low tension current 109 is output to each vehicle-mounted low-voltage equipment, such as shown in FIG ECU (Electrical Control Unit) 108.Because other equipment of conv 110 and such as ECU (Electrical Control Unit) 108 are all simple current consuming apparatus, therefore power dispenser 111 exports the driving electric energy stream 123 of conv 110 to is unidirectional, and the low tension current 109 exported from conv 110 is also unidirectional.
Display unit 106 can be integrated on vehicle-mounted telltale, exists and show flow of information 124 between display unit 106 and power dispenser 111.Display flow of information 124 contains the various information of the power distribution performed by power dispenser 111, and these information can be provided to display unit 106 by display flow of information and be shown by display unit 106.The information of power distribution that display flow of information 124 comprises can such as:
Main battery, increasing journey battery, the capacity of cell of secondary cell, current residual electricity.
According to the course continuation mileage that the comprehensive dump energy of each battery current calculates.
Current electric energy stream-like condition: such as currently to be powered by main battery or by increasing journey powered battery or powered by secondary cell or powered by several battery combination; For secondary cell charging (comprise use external source, use main battery or increase journey battery, apply the brakes reclaim electric energy for secondary cell and charge).
The metering of the electricity used: such as employ how many electricity from main battery, employ how many electricity from increasing journey battery, employ how many electricity from secondary cell.
It should be noted that, the information that display flow of information 124 comprises is not limited to above-mentioned introduced content.
The structured flowchart that the filling of battery-driven car of the present invention changes electric framework as shown in Figure 1, in the application of reality, also need the problem considered is in battery-driven car, how to arrange that electric equipment is changed in above-mentioned filling, the main battery that especially wherein volume is larger, increasing journey battery and secondary cell.Fig. 2 a and Fig. 2 b discloses the schematic diagram filling the layout of battery in vehicle of changing in electric framework of the battery-driven car according to one embodiment of the invention.Wherein Fig. 2 a is lateral plan and Fig. 2 b is birds-eye view.
As shown in the figure, three battery compartments are arranged in the bottom of battery-driven car 125: main battery storehouse 128, increasing journey battery compartment 127 and secondary cell storehouse 126.In order to save interior space, the also replacing of conveniently battery, the position of battery compartment is arranged at the bottom of car body, the below of seat.In the illustrated embodiment in which, the main battery storehouse 128 that volume is larger is set in the below of back seat, in main battery storehouse 128, holds main battery 101.Open Side Down in main battery storehouse 128, and battery replacement device is from the below of vehicle, and the position operation main battery storehouse at the bottom of car, carries out the replacing of main battery 101.Because the facility majorities such as existing automotive servicing operate from direction at the bottom of car vehicle, therefore the opening of battery compartment also can effectively be utilized existing facility downward.For the ease of the automation mechanized operation of battery altering, main battery storehouse 128 is provided with the first data exchange interface 129a and the first telltale mark 130a.The effect of the first telltale mark 130a battery replacement device to be aimed at, to carry out the replacement operation of main battery.First data exchange interface 129a is for the data communication between battery replacement device and vehicle and data exchange.Make battery replacement device to obtain information of vehicles, vehicle also can obtain the relevant information of battery replacement device, and these information can show on display unit 106.
Increasing journey battery compartment 127 and secondary cell storehouse 126, due to small volume, are therefore separately positioned on the below of two front-row seats.The opening increasing journey battery compartment 127 is also downward, and battery replacement device is from the below of vehicle, and the position operation at the bottom of car increases journey battery compartment, carries out increasing journey battery 102 and changes.Increasing journey battery compartment 127 is provided with the second data exchange interface 129b and the second telltale mark 130b.The effect of the second telltale mark 130b is that battery replacement device can be aimed at increasing journey battery compartment 127, to carry out the replacement operation of main battery.First data exchange interface 129b is for the data communication between battery replacement device and vehicle and data exchange.In one embodiment, the information that battery replacement device is exchanged by the first data exchange interface 129a and the second data exchange interface 129b and vehicle comprises: authentication information, user confirm instruction, main battery correlation parameter, increase the first data exchange interface 129a and the second data exchange interface 129b such as journey battery correlation parameter can be contact, also can be contactless.
Because secondary cell 105 is designed to not change, but carry out vehicle-mounted charge, therefore secondary cell storehouse 126 does not arrange the opening carrying out daily replacing.The opening in secondary cell storehouse 126 is set to towards in compartment, and the opening in secondary cell storehouse 126 is only when needing repairing, or secondary cell to expire need to open when changing service life, changes or keeps in repair in car to secondary cell 105.Change because secondary cell is not daily, therefore general not setting data Fabric Interface and telltale mark.
Fig. 3 discloses and fills according to the battery-driven car of one embodiment of the invention the schematic diagram changing electric framework and change battery.As shown in Figure 3, battery-driven car 125 sails the Reserved Parking 131 changing battery into.This Reserved Parking 131 is provided with passage 134 in the position lower than ground, and running in passage 134 has battery replacement device 133.Battery replacement device 133 have data exchange interface 132 and registration device (not shown).Battery replacement device 133 moves to main battery storehouse 128 along passage 134 or increases the below of journey battery compartment 127, in the embodiment shown in fig. 3, to be described the example that is operating as of main battery 101.Battery replacement device 133 runs to the below in main battery storehouse 128, is positioned by registration device and the first telltale mark 130a.Data exchange carried out by data exchange interface 132 and the first data exchange interface 129a, carries out authentication information, user confirms instruction, read electric energy numerical value, the identification of main battery correlation parameter etc. the operation of main battery output after having located.In one embodiment, the data interchange links that above-mentioned data exchange process also can be consisted of vehicle antenna 136 and parking stall electric wire 135 realizes.Completing authentication information, user confirms instruction, read the step such as electric energy numerical value, the identification of main battery correlation parameter that main battery exports after, battery replacement device 133 opens the door in main battery storehouse 128, remove the mechanical caging between main battery 101 and car body, main battery 101 is taken off.Battery replacement device 133 carries main battery 101 and moves along battery transport channel 134, the main battery 101 unloaded is delivered to charge position and charges.Battery replacement device 133 can carry the main battery 101 that a piece has been full of electricity again, the below in main battery storehouse 128 is re-moved along battery transport channel 134, the main battery 101 being full of electricity is encased in main battery storehouse 128, main battery 101 and car body are carried out mechanical caging, then shut the door in main battery storehouse 128, complete the replacing of main battery.For being arranged in the increasing journey battery 105 increasing journey battery compartment 127, similar step can be adopted to change.
The filling of battery-driven car of the present invention is changed electric framework and is distinguished battery according to the purposes of battery, different charging modes is adopted for different batteries, the high capacity cell often used is adopted and changes but not the mode of vehicle-mounted charge, small-capacity cells for Emergency use adopts the mode of vehicle-mounted charge, solves the contradiction of current battery-driven car in process of charging thus.
Above-described embodiment is available to be familiar with person in the art to realize or to use of the present invention; those skilled in the art can be without departing from the present invention in the case of the inventive idea; various modifications or change are made to above-described embodiment; thus protection scope of the present invention not limit by above-described embodiment, and should be the maximum range meeting the inventive features that claims are mentioned.