CN204215022U - A kind of electric automobile power battery dry run pick-up unit - Google Patents

A kind of electric automobile power battery dry run pick-up unit Download PDF

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Publication number
CN204215022U
CN204215022U CN201420483972.6U CN201420483972U CN204215022U CN 204215022 U CN204215022 U CN 204215022U CN 201420483972 U CN201420483972 U CN 201420483972U CN 204215022 U CN204215022 U CN 204215022U
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China
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direct current
supervising
meter
current generator
unit
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CN201420483972.6U
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赵伟
郑晓光
肖勇
罗敏
张永旺
周黎
丁国贸
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Abstract

A kind of electric automobile power battery dry run pick-up unit, BMS system is used for being connected with electrokinetic cell, BMS system, direct current table meter, the power input of electric machine controller, direct current generator is connected successively, supervising device is connected with direct current table meter with BMS system by data conversion module, supervising device is connected with the power input of electric machine controller by signal controller, signal controller receives the start and stop of the control command control electric machine controller of supervising device, driving simulator is connected with the control end of electric machine controller by signal controller, the control signal that signal controller receives driving simulator transmission adjusts the output voltage of electric machine controller thus the output power of control direct current generator, auxiliary power consumption device is connected with direct current generator, as the load of direct current generator.The utility model can carry out high density real-time data acquisition automatically, and the electrokinetic cell discharge and recharge operation under energy simulating vehicle travel situations, and testing result is accurate.

Description

A kind of electric automobile power battery dry run pick-up unit
Technical field
The utility model relates to electric automobile power battery detection field, particularly a kind of pick-up unit of electrokinetic cell charge-discharge characteristic of simulating vehicle traveling.
Background technology
Current environmental pollution and petroleum resources shortage problem day by day serious, the development of electric automobile is subject to the great attention of countries in the world, but along with continuous practice and the popularization of electric automobile, the electrokinetic cell of electric automobile is the key factor that restriction electric automobile is popularized always.The material of electrokinetic cell and technical development be non-full maturity so far, and the battery performance that each producer produces because of the reason such as technical merit and production technology is diversified in specifications to be caused, and charge-discharge characteristic is different, and the difference in serviceable life of battery is very large.The performance of current detection electrokinetic cell mainly relies on long-time running on electric automobile and configures car-mounted terminal tracing detection battery condition.
In addition, now general proving installation can only carry out simple functional test to electrokinetic cell, and be difficult to the situation of analog electrical motor vehicle long run, therefore measurement result is inaccurate.Adopting electric automobile to test then needs to drop into manpower and materials test, and need to buy vehicle, register the license, install charging pile, install collecting device etc., need to drop into very large manpower and materials, operation and maintenance cost is very high, and test condition is limited to by environment.
Utility model content
Technical problem to be solved in the utility model, is just to provide a kind of electric automobile power battery dry run pick-up unit, and the electrokinetic cell discharge and recharge operation under this pick-up unit energy simulating vehicle travel situations, makes testing result more accurate.
Solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows: a kind of electric automobile power battery dry run pick-up unit, comprises BMS system, direct current table meter, data conversion module, supervising device, driving simulator, signal controller, electric machine controller, direct current generator, auxiliary power consumption device;
Described BMS system is used for being connected with described electrokinetic cell, described BMS system, direct current table meter, the power input of electric machine controller, direct current generator is connected successively, described supervising device is connected with described direct current table meter with described BMS system by described data conversion module, described supervising device is connected with the power input of described electric machine controller by described signal controller, the control command that signal controller receives described supervising device controls the start and stop of described electric machine controller, described driving simulator is connected with the control end of described electric machine controller by described signal controller, signal controller receives the control signal that driving simulator sends and adjusts the output voltage of described electric machine controller thus control the output power of described direct current generator, described auxiliary power consumption device is connected with described direct current generator, as the load of described direct current generator.
Described BMS system is connected by CAN with described data conversion module.
Described data conversion module is connected by TCP/IP network with described supervising device.
The utility model is by the output power of driving simulator dynamic conditioning direct current generator, to react the discharge process of electrokinetic cell when electric automobile runs more really, and pass through the operational factor of supervising device Real-time Collection battery, make the testing result of the electric automobile power battery discharge process reflected by the utility model pick-up unit more accurate.
Improve as to the one of the utility model pick-up unit function, make the utility model can the filling of continual simulating vehicle electrokinetic cell, discharge process: described pick-up unit also comprises the electrical network link be connected successively, alternating-current meter meter, two way convertor, two way convertor is connected with described direct current table meter, described alternating-current meter meter, two way convertor, direct current table meter is all connected with described supervising device by data conversion module, described signal controller is connected with exchanging to hold with the DC terminal of described two way convertor, control two way convertor DC terminal and exchange hold be switched on or switched off.
The utility model arranges two way convertor, by the control of supervising device to signal controller and two way convertor, can realize battery charging, battery to direct current generator electric discharge, battery to the selection of the multiple-working modes such as electrical network feed.
Described driving simulator comprises throttle, brake, induction installation, server and display device, described throttle is connected with server by induction installation, described brake is connected with described server, and described server is connected with described signal controller, and described display device is connected with described server.
Described driving simulator also comprises bearing circle, and described bearing circle, throttle, brake are arranged according to their position relationships on electric automobile.
As preferred implementation of the present utility model: described direct current generator is connected by the server of described signal controller with described driving simulator, driving simulator obtains the tach signal of direct current generator and is presented on described display device.
As to improvement of the present utility model: set up temp probe, described temp probe is arranged near direct current generator, described temp probe is connected with described supervising device by described signal controller.
As recommendation embodiment of the present utility model: described signal controller is PLC.
Relative to prior art, the utility model has following beneficial effect:
1) between the utility model pick-up unit intraware mainly through wired mode communications such as TCP/IP network, CAN, automatically high density real-time data acquisition can be carried out, gather the discharge and recharge SOC of battery, voltage, electric current, the voltage of cell and temperature, the load of AC and DC table meter, table code, the data such as rotating speed, temperature of direct current generator are also centrally stored in supervising device, because whole device is by private line access, the data acquisition density of Millisecond can be realized, much larger than the data transmission frequencies that pick-up unit on electric automobile has;
2) supervising device of the present utility model is by control to signal controller, to realize battery charging, battery load motor electric discharge, battery the selection of the multiple-working modes such as electrical network feed;
3) the utility model can the discharge process of simulating vehicle driving dynamics battery, and the charge and discharge operation of electrokinetic cell can be made automatically to run without interruption, compare general pick-up unit, more can reflect the actual operating mode of electric automobile power battery, save the purchase of electric automobile, maintenance, a series of cost such as artificial.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the theory diagram of the pick-up unit of the utility model preferred embodiment;
Fig. 2 is the theory diagram of driving simulator in Fig. 1.
Embodiment
As shown in Figure 1, the electric automobile power battery dry run pick-up unit of the utility model specific embodiment comprises BMS system 8, data conversion module 16, supervising device 1, driving simulator 2, signal controller 3, electric machine controller 6, direct current generator 5, electrical network link, alternating-current meter meter 14, two way convertor 12, direct current table meter 10 and auxiliary power consumption device 17;
Electrical network link, alternating-current meter meter 14, two way convertor 12 is connected successively with direct current table meter 10, electrical network link connects AC network by power network switch, direct current table meter 10 is connected with BMS system 8, alternating-current meter meter 14, two way convertor 12, direct current table meter 10 all passes through data conversion module 16 and is connected with supervising device 1, BMS system 8 is connected with electrokinetic cell 9, BMS system 8 is also connected with supervising device 1 by data conversion module 16, supervising device 1 is connected with the power input of electric machine controller 6 by signal controller 3, the power input of electric machine controller 6 is connected with electrokinetic cell 9 with BMS system 8 by direct current table meter 10, signal controller 3 receives the start and stop of the control command control electric machine controller 6 of supervising device 1, namely be communicated with electrokinetic cell 9 or disconnect, signal controller 3 is also connected with exchanging to hold with the DC terminal of two way convertor 12, control two way convertor 12 DC terminal and exchange hold be switched on or switched off, driving simulator 2 is connected with the control end of electric machine controller 6 by signal controller 3, signal controller 3 receives the output voltage of the control signal adjustment electric machine controller 6 that driving simulator 2 sends, the output terminal of electric machine controller 6 is connected with direct current generator 5, control direct current generator 5 to run, direct current generator 5 is connected with driving simulator 2 by signal controller 3, so that driving simulator 2 obtains the rotary speed data of direct current generator 5, temp probe 4 is arranged near direct current generator 5, temp probe 4 is connected with supervising device 1 by signal controller 3, auxiliary power consumption device 17 is connected with direct current generator 5, as the load of direct current generator 5.
BMS system 8 is battery management systems; mainly electrokinetic cell parameter is monitored in real time; fault diagnosis, SOC estimation, distance travelled estimation, short-circuit protection, leakage current detect, it is connected with data conversion module 8 by CAN, sends battery parameter in real time to supervising device 1.
Data conversion module 16 is made up of the data collection module of multiplex roles, input comprises RS485 interface, CAN interface, TCP/IP network interface, output interface is TCP/IP network interface, possess majority and collect translation function according to protocol data, its output interface connects supervising device 1, with supervising device 1 real-time communication.
Supervising device 1 is made up of the memory device be connected with monitoring server, monitoring display equipment and external interface device.The data acquisition of supervising device 1 realizes mainly through the TCP/IP network interface of data conversion module 16, possesses the data of AC and DC table meter 14,10 voltage, electric current and the BMS system 8 storing data conversion module 16 and gather.The operating condition of direct current generator 5 monitored by supervising device 1, extremely and after super threshold alarm implements urgent protection to equipment, the operating condition of monitoring bidirectional current transformer 12 in generation, extremely and after super threshold alarm implements urgent protection to equipment in generation.Supervising device 1 possesses selects the function of pick-up unit mode of operation to select, and mode of operation comprises: charge mode, inversion grid mode, drive simulating pattern, specifically how to select to see below.Supervising device 1 is connected with signal controller 3 by USB adapter, realizes issuing control command to signal controller 3.
Driving simulator 2 connection signal controller 3, as shown in Figure 2, driving simulator 2 is by bearing circle 26, throttle 24, brake 25, induction installation 23, display device 22 and server 21 are formed, throttle 24 is connected with server 21 by induction installation 23, brake 25 direct connection servers 21, server 21 is connected with signal controller 3, display device 22 is connected with server 21, driving simulator receives direct current generator 5 tach signal and is converted to car speed index and is presented in display device 22, the running status of the direct current generator 5 of test platform is synchronized on driving simulator.Induction installation 23 is pressure transducer, and throttle signal is converted to electric signal and outputs to server 21 by it, and exports by server 21 control signal to control electric machine controller 6 output voltage by signal controller 3.Bearing circle 26, throttle 24, brake 25 are arranged according to their position relationships on electric automobile.Driving simulator 2 has two kinds of mode of operations: manual operation equipment simulating car travel mode and automatic driving mode, above-mentioned server is according to the mode that transmits control signal of instruction on throttle and brake and corresponding manual operation equipment simulating car travel mode, and under automatic driving mode, server can transmit control signal according to vehicle operation data default it on.
Signal controller 3 is preferably made up of PLC, and its output terminal connects relay switch K1, relay switch K2 by wire, the control end of relay switch K3 and electric machine controller 6.Relay switch K1 is arranged on the DC terminal of two way convertor 12, relay switch K2 is arranged on the interchange end of two way convertor 12, relay switch K3 is arranged on the power input of electric machine controller 6, signal controller 3 accepts the control command of supervising device 1, the unlatching of pilot relay switch, closed, signal controller 3 receives the dynamic conditioning of control signal realization to the output voltage of electric machine controller 6 of driving simulator 2, thus realizes the control to direct current generator 5 operate power.Signal controller 3 is also connected with direct current generator 5, detects on direct current generator 5 rotary speed data and delivers to driving simulator 2.Signal controller 3 input end is also connected with temp probe 4, delivers to supervising device 1 by the temperature data of temp probe 4.
One end that the power input of electric machine controller 6 is connected with two way convertor 12 by wire and direct current table meter 10 is connected, to be connected with electrokinetic cell 9, output terminal is connected with direct current generator 5, controls direct current generator 5 and runs.
Direct current generator 5 is DC servo motor, and control end connects electric machine controller 6, and direct current generator 5 output power is adjustable, and direct current generator 5 connects auxiliary energy-dissipating device 17 as load.
Two way convertor 12 is DC-AC conversion device, can realize alternating current and direct current conversion.Its adopts power model to be alternating current by the inversion of electrokinetic cell 9 direct current energy, and direct feed-in AC network or absorb electric energy from AC network, be stored in electrokinetic cell 9.Two way convertor 12, by the TCP network of twisted pair line connection data conversion module 16, is connected with supervising device 1 by data conversion module 16.Supervising device 1 controls the mode of operation of two way convertor 12, and namely realize two way convertor 12 and directly deliver and hand over a turn straight switching, meanwhile, two way convertor 12 is also thought supervising device 1 send data by data conversion module.Two way convertor 12 except can gathering AC and DC data, can also on send the excessive datas such as two way convertor 12 starts, halted state, network operation frequency, current work load.
Direct current table meter 10 gathers voltage, current data in DC line, by the RS485 interface of direct current table meter 10, is connected with data conversion module 16.
Alternating-current meter meter 14 gathers three-phase voltage, current data on alternating current circuit, by the RS485 interface of alternating-current meter meter 14, is connected with data conversion module 16.
When working in electric automobile drive simulating pattern, relay switch K2 and relay switch K1 disconnects, and relay switch K3 closes.Relay switch K1, relay switch K2, the duty of relay switch K3 is interlocking, when relay switch K3 closure state is not removed, will lose efficacy to the operation of other relay switch, to guarantee that mode of operation accurately and reliably.Electrokinetic cell is in output load state, after signal controller receives the control command of supervising device startup drive simulating, the loop of power circuit of closed electrokinetic cell and direct current generator, electrokinetic cell drives direct current generator running, and direct current generator connects auxiliary energy consumption unit simulation vehicle load.Electric machine controller receives the throttle signal that driving simulator sends, and the rotating speed controlling direct current generator carrys out simulating vehicle and runs at various speeds.Supervising device Real-time Collection BMS system output signal, direct current table count, temp probe data.Driving simulator gathers DC motor speed data, supervising device monitoring service data, ensure the indexs such as system loading, battery SOC, cell voltage, battery current, battery temperature, system operating temperature in the reasonable scope, guarantee system safety operation, as battery SOC be reduced to certain arrange threshold values under, drive simulating pattern will be stopped, the charge mode of starter gear.
Utility model works is when charge mode, and relay switch K2 and relay switch K1 closes, and power network switch closes, and relay switch K3 disconnects, and two way convertor works in interchange and turns DC mode, realizes to power battery charging.Relay switch K1, relay switch K2, the duty of relay switch K3 is interlocking, when relay switch K1, relay switch K2 closure state are not removed, the operation of other relay switch will be lost efficacy, to guarantee that mode of operation accurately and reliably, supervising device Real-time Collection BMS system output signal, direct current table count, alternating-current meter counts.Supervisory control system running data, ensure system loading, battery SOC, cell voltage, battery current, battery temperature index in the reasonable scope, guarantee system safety operation.When battery SOC is charged on certain threshold values arranged, stop charge mode.
Supervising device of the present utility model can arrange drive simulating pattern and charge mode alternate run, the charge and discharge process of continual simulating vehicle electrokinetic cell.
Utility model works is when battery inversion feed-in grid mode, relay switch K2 and relay switch K1 closes, and relay switch K3 disconnects, and power network switch closes, two way convertor works in direct current and delivers stream mode, realizes electrokinetic cell to AC network inversion feed-in electricity.Relay switch K1, relay switch K2, the duty of relay switch K3 is interlocking, and when relay switch K1, relay switch K2 closure state are not removed, the operation of other relay switch will be lost efficacy, to guarantee that mode of operation accurately and reliably.Supervising device Real-time Collection BMS system output signal, direct current table count, alternating-current meter counts.Supervisory control system running data, when battery SOC drops to below certain threshold values arranged or inverter current is less than the threshold values of certain setting, stop inverter mode.
Emergency safeguard measure, namely controls three relay switches by supervising device by signal controller and all disconnects.

Claims (9)

1. an electric automobile power battery dry run pick-up unit, is characterized in that, comprises BMS system, direct current table meter, data conversion module, supervising device, driving simulator, signal controller, electric machine controller, direct current generator, auxiliary power consumption device;
Described BMS system is used for being connected with described electrokinetic cell, described BMS system, direct current table meter, the power input of electric machine controller, direct current generator is connected successively, described supervising device is connected with described direct current table meter with described BMS system by described data conversion module, described supervising device is connected with the power input of described electric machine controller by described signal controller, the control command that signal controller receives described supervising device controls the start and stop of described electric machine controller, described driving simulator is connected with the control end of described electric machine controller by described signal controller, signal controller receives the control signal that driving simulator sends and adjusts the output voltage of described electric machine controller thus control the output power of described direct current generator, described auxiliary power consumption device is connected with described direct current generator, as the load of described direct current generator.
2. electric automobile power battery dry run pick-up unit according to claim 1, it is characterized in that, set up temp probe, described temp probe is arranged near direct current generator, and described temp probe is connected with described supervising device by described signal controller.
3. electric automobile power battery dry run pick-up unit according to claim 1 and 2, it is characterized in that, described pick-up unit also comprises the electrical network link, alternating-current meter meter, the two way convertor that are connected successively, two way convertor is connected with described direct current table meter, described alternating-current meter meter, two way convertor, direct current table meter are all connected with described supervising device by data conversion module, the DC terminal of described signal controller and described two way convertor is connected with exchanging to hold, and what the DC terminal and exchanging controlling two way convertor was held is switched on or switched off.
4. electric automobile power battery dry run pick-up unit according to claim 3, it is characterized in that, described driving simulator comprises throttle, brake, induction installation, server and display device, described throttle is connected with server by induction installation, described brake is connected with described server, described server is connected with described signal controller, and described display device is connected with described server.
5. electric automobile power battery dry run pick-up unit according to claim 4, it is characterized in that, described driving simulator also comprises bearing circle, and described bearing circle, throttle, brake are arranged according to their position relationships on electric automobile.
6. electric automobile power battery dry run pick-up unit according to claim 5, it is characterized in that, described direct current generator is connected by the server of described signal controller with described driving simulator, and driving simulator obtains the tach signal of direct current generator and is presented on described display device.
7. electric automobile power battery dry run pick-up unit according to claim 1, is characterized in that, described signal controller is PLC.
8. electric automobile power battery dry run pick-up unit according to claim 1, is characterized in that, described BMS system is connected by CAN with described data conversion module.
9. electric automobile power battery dry run pick-up unit according to claim 1, it is characterized in that, described data conversion module is connected by TCP/IP network with described supervising device.
CN201420483972.6U 2014-08-21 2014-08-21 A kind of electric automobile power battery dry run pick-up unit Active CN204215022U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652698A (en) * 2017-01-24 2017-05-10 湖南省德沃普储能有限公司 Teaching demonstration system and method for application of all-vanadium redox flow battery in renewable energy field
CN109215176A (en) * 2017-07-03 2019-01-15 深圳市通达智科技有限公司 The setting method of passageway gate machine system and its operational mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652698A (en) * 2017-01-24 2017-05-10 湖南省德沃普储能有限公司 Teaching demonstration system and method for application of all-vanadium redox flow battery in renewable energy field
CN109215176A (en) * 2017-07-03 2019-01-15 深圳市通达智科技有限公司 The setting method of passageway gate machine system and its operational mode

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