CN203084110U - Distance increasing device testing system - Google Patents
Distance increasing device testing system Download PDFInfo
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- CN203084110U CN203084110U CN 201220746739 CN201220746739U CN203084110U CN 203084110 U CN203084110 U CN 203084110U CN 201220746739 CN201220746739 CN 201220746739 CN 201220746739 U CN201220746739 U CN 201220746739U CN 203084110 U CN203084110 U CN 203084110U
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- distance increasing
- increasing unit
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Abstract
The embodiment of the utility model discloses a distance increasing device testing system which comprises a stent for placing a distance increasing device, a low voltage power supply system which provides low voltage needed by the working of the distance increasing device, a power distribution cabinet which provides voltage needed by the working of the distance increasing device, an adjustable electrical load, a first relay, a second relay, a third relay, a current sensor, a voltage sensor, a controller and an oil supply subsystem. The controller sends control commands to the distance increasing device, the low voltage power supply system, the power distribution cabinet and the adjustable electrical load so as to control the testing system to send a command needed by the normal working of the distance increasing device to the distance increasing device and receives information sent back by the distance increasing device, the low voltage power supply system, the power distribution cabinet and the adjustable electrical load, through the feedback information, whether the function of the distance increasing device can be realized normally can be detected, the assembly efficiency of electric vehicles is raised, and the testing system has the advantages of simple structure and easy industrial realization.
Description
Technical field
The utility model relates to the extended-range electric vehicle technical field, more particularly, relates to a kind of distance increasing unit test macro of extended-range electric vehicle.
Background technology
Extended-range electric vehicle obtains people's extensive concern because of its two-fold advantage that has pure electric vehicle energy-saving and environmental protection and traditional vehicle continuation of the journey mileage length concurrently.The distance increasing unit of extended-range electric vehicle is a small-sized genset; constitute by engine, generator and distance increasing unit control system; in the process of moving can be according to whole vehicle state, operating mode and battery electric quantity; automatically start generating; the charging back auto stop that finishes can be carved when needed by the driver and manually boots and shut down.Distance increasing unit is by the distance increasing unit control system, and the required voltage and current of power drive system is exported in the order of response electric motor car entire car controller, the stable control of realization loading and unloading, the most economical working point control of engine etc.
At present, distance increasing unit is directly used in electric motor car after assembling is finished, and whether its function can normally realize not detecting, therefore, if distance increasing unit be used for distance increasing unit cisco unity malfunction behind the electric motor car (as, can normally power on, can normal starting, can realize each generating operation mode point etc.), must change distance increasing unit, reduced the packaging efficiency of electric motor car, therefore how distance increasing unit being detected the packaging efficiency that reduces electric motor car to prevent to be applied to the distance increasing unit cisco unity malfunction of electric motor car becomes problem demanding prompt solution.
The utility model content
In view of this, the application provides a kind of distance increasing unit test macro, and being used for distance increasing unit is detected can operate as normal with the distance increasing unit that guarantees to be applied to electric motor car.
For achieving the above object, the utility model provides following technical scheme:
A kind of distance increasing unit test macro comprises:
Place the support of described distance increasing unit, the low-voltage power supply system of the required low-voltage of described distance increasing unit work is provided, provide described distance increasing unit work required high-tension power distribution cabinet, the adjustable electric load, first relay, second relay, the 3rd relay, current sensor, voltage sensor, controller and oil supply subsystem; Wherein:
Described first relay is connected with described distance increasing unit with described low voltage control system respectively; Described voltage sensor and described distance increasing unit are connected in parallel, and described current sensor and described distance increasing unit are connected in series; Described second relay is connected with described power distribution cabinet with described current sensor respectively; Described the 3rd relay respectively with the common node of described current sensor and described second relay, and described adjustable electric load is connected; Load is connected described controller with adjustable electric with described distance increasing unit, low voltage control system, first relay, voltage sensor, current sensor, second relay, the 3rd relay, power distribution cabinet respectively, sending controling instruction, and receive the information of described distance increasing unit, described voltage sensor, described current sensor and described adjustable electric load feedback; Described oil supply subsystem is connected with described distance increasing unit with oil depot respectively.
Said system, preferred, described power distribution cabinet comprises:
Power circuit and discharge circuit, wherein,
Power circuit is used to provide described distance increasing unit work required high voltage;
Described discharge circuit comprises diode, discharge resistance, intelligent switch, first voltage sampling circuit, voltage comparator, voltage follower and second voltage sampling circuit; Wherein,
Second voltage sampling circuit, voltage follower, voltage comparator, intelligent switch and discharge resistance are connected successively, and the other end of second voltage sampling circuit is connected with the negative electrode of diode; The other end of discharge resistance is connected to the negative pole of power distribution cabinet, and the 3rd end of intelligent switch is connected with the positive pole of power distribution cabinet, and first voltage sampling circuit, one end links to each other with voltage comparator, and an end is connected with the anode of diode; Wherein, first voltage sampling circuit links to each other with voltage source with the common port of diode, and the common port of second voltage sampling circuit and diode is connected to the positive pole of power distribution cabinet, and described voltage source is used to provide target voltage.
Said system, preferred, also comprise:
First air switch that is connected with described power distribution cabinet with described second relay respectively;
Second air switch that is connected with described adjustable electric load with described the 3rd relay respectively.
Said system, preferred, also comprise:
The constant temperature subsystem comprises cooling tower, the cooling water pipeline that chilled water is provided and is arranged at temperature sensor on the described cooling water pipeline; Described cooling water pipeline is operated in the temperature range of trouble free service to guarantee distance increasing unit by described distance increasing unit.
Said system, preferred, also comprise:
The ventilation subsystem is used for the test environment of described distance increasing unit is carried out ventilation, to guarantee the required environment temperature of described distance increasing unit operate as normal.
Said system, preferred, also comprise:
The host computer that is connected with described controller.
By above scheme as can be known, a kind of distance increasing unit test macro that the application provides, controller passes through to distance increasing unit, low voltage control system, power distribution cabinet, adjustable electric load sending controling instruction, send the required instruction of its operate as normal with the control test macro to distance increasing unit, and receive the information of distance increasing unit, low voltage control system, power distribution cabinet, adjustable electric load feedback, pass through feedback information, whether the function that can detect distance increasing unit can normally realize, improved the packaging efficiency of electric motor car, and this test system structure is simple, is easy to industrial realization.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of distance increasing unit test macro that Fig. 1 provides for the embodiment of the present application;
The structural representation of the discharge circuit that Fig. 2 provides for the embodiment of the present application;
The structural representation of the another kind of distance increasing unit test macro that Fig. 3 provides for the embodiment of the present application;
The structural representation of another distance increasing unit test macro that Fig. 4 provides for the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of the disclosed a kind of distance increasing unit test macro of the embodiment of the present application comprises as shown in Figure 1:
First relay 3 is connected with distance increasing unit 12 with described low voltage control system 2 respectively; Described voltage sensor 10 is connected in parallel with described distance increasing unit 12, also is in parallel with described adjustable electric load 6 simultaneously, and described current sensor 9 is connected in series with described distance increasing unit 12, and is concrete, is connected with the cathode output end of described distance increasing unit 12; Described second relay 7 is connected with described power distribution cabinet 5 with described current sensor 9 respectively, that is to say that an end of current sensor 9 is connected with distance increasing unit 12, and an end is connected with described second relay 7; Described the 3rd relay 8 respectively with the common node of described current sensor 9 and described second relay 7, and described adjustable electric load 6 is connected; Described controller 4 is connected with adjustable electric load 6 with described distance increasing unit 12, low voltage control system 2, first relay 3, voltage sensor 10, current sensor 9, second relay 7, the 3rd relay 8, power distribution cabinet 5 respectively, sending controling instruction, and receive described distance increasing unit 12, described voltage sensor 10, described current sensor 9 and described adjustable electric load 6 feedacks; Described oil supply subsystem 11 is connected with described distance increasing unit 12 with the oil depot (not shown) respectively, and the fuel oil that provides the distance increasing unit engine operation required is provided.Oil supply subsystem includes fuel consumption meter, is used to measure the fuel consumption of engine under certain operating mode, fuel consumption data can be sent to controller 4 simultaneously, and show by host computer.Busbar voltage between the generator of voltage sensor 10 collection adjustable electric loads 6 and distance increasing unit 12
Wherein, support 1 is used to place distance increasing unit to be tested 12; Low-voltage power supply system is used to provide described distance increasing unit 12 work required low-voltage, power distribution cabinet 5 is used to provide described distance increasing unit 12 work required high-tension, wherein, low-voltage and high voltage all are the required voltages of distance increasing unit 12 real works, what respectively determine for, therefore, how many unnecessary explanation low-voltage and high voltages respectively be in the present embodiment; Adjustable electric load 6 is pure resistive load, and peak power is 100KW, precision 30W.Adjustable electric load 6 persevering resistance and two kinds of mode of operations of permanent power can receive the steering order of controller 4, as instructions such as target mode of operation, target consumed power value, shutdown, startups.Wherein, permanent resistance mode of operation is meant that the resistance of adjustable electric load 6 regulates according to the target resistance values of the transmission of controller 4; Permanent power modes of operation is meant the output firm power of adjustable electric load 6 according to the steering order of controller 4.
The specifications parameter of power distribution cabinet 5 is direct current 500V, 100A, degree of regulation is 0.1V, 0.1A, power distribution cabinet 5 provides outside the power supply of working power (specific implementation is a common practise, the repeats no more here) circuit except being included as distance increasing unit 12, also comprises discharge circuit, the structural representation of discharge circuit comprises as shown in Figure 2:
Diode 51, discharge resistance 52, intelligent switch 53, first voltage sampling circuit 54, voltage comparator 55, voltage follower 56 and second voltage sampling circuit 57; Wherein,
Second voltage sampling circuit 57, voltage follower 56, voltage comparator 55, intelligent switch 53 and discharge resistance 52 are connected successively, and the other end of second voltage sampling circuit is connected with the negative electrode of diode 51; The other end of discharge resistance 52 is connected to the negative pole (as "-" port of power distribution cabinet among the figure 5) of power distribution cabinet 5 shown in Figure 1, the 3rd end of intelligent switch 53 and the positive pole of power distribution cabinet shown in Figure 15 are (as "+" port of power distribution cabinet among the figure 5, the positive voltage output end of power circuit just) is connected, first voltage sampling circuit, 54 1 ends link to each other with voltage comparator 55, and an end is connected with the anode of diode 51; Wherein, first voltage sampling circuit 54 links to each other with voltage source 58 with the common port (being the anode of diode) of diode 51, second voltage sampling circuit 57 and diode 51 common port (being the negative electrode of diode) be connected to the positive pole (as "+" port of power distribution cabinet among the figure 5) of power distribution cabinet 5 shown in Figure 1, voltage source 58 is used to provide target voltage.The principle of work of described discharge circuit is as follows:
First voltage sampling circuit 54 is gathered diodes 51 anode voltages, i.e. target voltage values, and the target voltage that collects is input to voltage comparator 55; Second voltage sampling circuit 57 is gathered diode 51 cathode voltages, it is the busbar voltage between the generator of adjustable electric loading 6 and distance increasing unit 12, because generator excitation moment of distance increasing unit 12 can produce a very high inverse electromotive force, therefore, the second voltage sampling circuit collection be the voltage of the inverse electromotive force that produces generator excitation moment of distance increasing unit 12, the voltage that second voltage sampling circuit 57 is gathered is input to voltage comparator 55 by voltage follower 56; Voltage comparator compares the voltage of the inverse electromotive force that the target voltage and second voltage sampling circuit 57 of 54 collections of first voltage sampling circuit are gathered, when the voltage of the inverse electromotive force of the described second voltage collection circuit collection is higher than described target voltage, voltage comparator 55 output control signals, control described intelligent switch 53 closures, so that discharge resistance 52 is communicated with the positive pole and the negative pole of inverse electromotive force voltage, be the busbar voltage between the generator of adjustable electric loading 6 and distance increasing unit 12, by described discharge resistance discharge.And, diode 51 can also guarantee that the inverse electromotive force that the generator of distance increasing unit 12 produces can not make the voltage of power distribution cabinet 5 outputs be interfered, after the generator success excitation generating of journey device 12, power distribution cabinet 5 only plays the generate electricity effect of described necessary DC bus-bar voltage of engine controller PWN rectification of keeping, only have very little or no current output, electric energy expends few, saves electric energy.
For guarantee when each operating point switches can both be with distance increasing unit 12 in generator excitation moment the electromagnetic interference (EMI) that produces all consume, can before generator excitation, allow adjustable electric load 6 consume intelligent powers earlier, after being depleted to the target power of generator for electricity generation demand etc. adjustable electric load 6 is stable, send target power to distance increasing unit again and make its excitation generating, concrete, controller 4 sends permanent power modes of operation instruction to the adjustable electric load, make the adjustable electric loaded work piece in permanent power modes of operation, and to adjustable electric load 6 transmission target consumed power values, in the present embodiment, described target consumed power value is the target power of generator for electricity generation, adjustable electric load 6 simultaneously will be implemented the consumed power value and send to controller 4 by the CAN bus, when the consumed power that detects adjustable electric load 6 when controller 4 reaches target power value, send target power value to the distance increasing unit control system, with generator excitation generating in the control distance increasing unit 12.
In addition, in order further to overcome the electromagnetic interference (EMI) of generator excitation moment generation in the distance increasing unit 12, guarantee stability of data transmission, reliability and real-time in the embodiment of the present application, adopt the CAN bus to communicate between controller 4 and each parts.
In the present embodiment, when distance increasing unit 12 was detected, test event comprised: power test and the operating mode switch test of going up electrical testing, startup test, each operating point; Last electrical testing is meant that can the test distance increasing unit normally power on; Can the startup test be used to test distance increasing unit and normally start; The power test of each operating point is meant that can the test distance increasing unit reach predetermined electric power at individual each operating point; Can the operating mode switch test is used to test distance increasing unit normally carry out operating mode and switch, and switch whether accurate etc.
Specifically when test, the method of last electrical testing is: controller 4 closed low electric power systems 2, and control first relay, 3 closures, to start low-voltage power supply system 2, make low-voltage power supply system 2 provide its work required low-voltage to the distance increasing unit control system of distance increasing unit 12, distance increasing unit control system in distance increasing unit 12 sends enabled instruction simultaneously, after this, controller 4 receives the signal of distance increasing unit control system by the whether operate as normal of CAN bus feedback, if distance increasing unit control system operate as normal (being that the distance increasing unit control system can normally power on), then prompting powers on normal, otherwise electrical anomaly in the prompting (being that the distance increasing unit control system can not normally power on), concrete prompting can be the mode of voice, also can be the mode that literal shows, does not do concrete qualification here.If last electrical testing by (promptly going up electrical anomaly), does not then stop follow-up test.
Last electrical testing by (promptly power on normal) after, can start test, the method that starts test is: the distance increasing unit control system of controller 4 in distance increasing unit 12 sends enabled instruction, after the distance increasing unit control system receives enabled instruction, the generator of controlling in the described distance increasing unit 12 starts to drive engine operation, when generator starts successfully, the distance increasing unit control system sends to controller 4 and starts into function signal (illustrating that distance increasing unit can normally start), start failure signal (illustrating that distance increasing unit can not normally start) otherwise send, concrete prompting also can be the mode of voice, also can be the mode that literal shows, not do concrete qualification here.If start test not by (being that distance increasing unit can not normally start), then stop follow-up test.
When starting test by (being that distance increasing unit normally starts), the power test to each operating point of distance increasing unit comprises the test of miniwatt operating point, transient working condition point power test, declared working condition point power test, maximum duty point power test; Specifically when test, controller 4 sends target power value to the distance increasing unit control system of distance increasing unit 12, engine in the distance increasing unit control system control distance increasing unit drives generator for electricity generation, and to the current actual power power of controller 4 feedback distance increasing units, according to target power value and increase the actual power performance number of device control system feedback once just can judge distance increasing unit whether work as the Pretesting operating mode normal.Because corresponding target power value of each operating point, therefore, in the time of will testing all operating points of distance increasing unit, operating point of every test, all need controller 4 to send the target power value corresponding with this operating point to distance increasing unit control system, the real power value of feeding back according to the distance increasing unit control system is judged whether normal power generation of generator then;
When carrying out the operating mode switch test, just when controller 4 indication distance increasing units 12 become second operating mode by first operating mode, distance increasing unit control system in the distance increasing unit 12 also can be to the time that controller 4 feedbacks are switched, and the power change values in switching time, the operating mode of judging distance increasing unit according to distance increasing unit control system feedack is switched character, linear change still is a nonlinearities change etc. in this way, so that the performance of distance increasing unit is further judged.
A kind of distance increasing unit test macro that the embodiment of the present application provides, controller passes through to distance increasing unit, low voltage control system, power distribution cabinet, adjustable electric load sending controling instruction, send the required instruction of its operate as normal with the control test macro to distance increasing unit, and receive the information of distance increasing unit, low voltage control system, power distribution cabinet, adjustable electric load feedback, pass through feedback information, whether the function that can detect distance increasing unit can realize normally that this test system structure is simple, is easy to industrial realization.
Please referring to Fig. 3, the structural representation of the another kind of distance increasing unit test macro that Fig. 3 provides for the embodiment of the present application, on basis embodiment illustrated in fig. 1, the described journey test macro that increases also comprises:
Two air switches (being switch disconnector): first air switch 13 and second air switch 14, wherein,
Second air switch is connected with described adjustable electric load 6 with described the 3rd relay 8 respectively;
These two switches are used for power distribution cabinet 5 and adjustable electric load 6 are disconnected, and for example, when the distance increasing unit test macro breaks down, in order to protect power distribution cabinet 5 and adjustable electric load 6, first air switch 13 and second air switch 14 can be disconnected.
As shown in Figure 4, the structural representation of another distance increasing unit test macro that Fig. 4 provides for the embodiment of the present application on the basis of the described test macro of Fig. 1, also comprises:
The constant temperature subsystem comprises cooling water pipeline that links to each other with cooling tower and the temperature sensor that is arranged on the described cooling water pipeline; Used for cooling tower is in the cooling of chilled water; Described cooling water pipeline is operated in the temperature range of trouble free service to guarantee distance increasing unit by described distance increasing unit.The constant temperature subsystem is crossed the temperature of the cooling circulating water of this test macro by the temperature sensor acquisition stream, temperature and target temperature by the chilled water that will collect compare, rotating speed through PID controller control water pump, regulate the flow of recirculated cooling water, guarantee that distance increasing unit engine, generator and distance increasing unit control system are operated in the temperature range of trouble free service, guarantee that cooling system is safe and reliable.The constant temperature subsystem is also given controller 4 with the Temperature Feedback of real-time chilled water, and is shown by host computer.
The ventilation subsystem is used for the test environment of described distance increasing unit 12 is carried out ventilation, to guarantee the required environment temperature of described distance increasing unit operate as normal.The ventilation subsystem can be made of several fan blowers, guarantees that the temperature of test environment is unlikely too high, because the too high meeting of the temperature of test environment causes the distance increasing unit cisco unity malfunction.
Need to prove, not shown low-voltage power supply system 2 among Fig. 4, first relay 3, second relay 7, the 3rd relay 8, current sensor 9, voltage sensor 10, first air switch 13 and second air switch 14 be because, above-mentioned parts can independently use, also can be integrated in other parts to realize corresponding function, if use separately, integrated use can connect according to Fig. 1 or circuit diagram shown in Figure 3, if can be integrated in the low-voltage power supply system 2 and first relay 3 in the controller 4, second relay 7 and first air switch 13 can be integrated in the power distribution cabinet 5, the 3rd relay 8 and second air switch 14 can be integrated in the adjustable electric load.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a distance increasing unit test macro is characterized in that, comprising:
Place the support of described distance increasing unit, the low-voltage power supply system of the required low-voltage of described distance increasing unit work is provided, provide described distance increasing unit work required high-tension power distribution cabinet, the adjustable electric load, first relay, second relay, the 3rd relay, current sensor, voltage sensor, controller and oil supply subsystem; Wherein:
Described first relay is connected with described distance increasing unit with described low voltage control system respectively; Described voltage sensor and described distance increasing unit are connected in parallel, and described current sensor and described distance increasing unit are connected in series; Described second relay is connected with described power distribution cabinet with described current sensor respectively; Described the 3rd relay respectively with the common node of described current sensor and described second relay, and described adjustable electric load is connected; Load is connected described controller with adjustable electric with described distance increasing unit, low voltage control system, first relay, voltage sensor, current sensor, second relay, the 3rd relay, power distribution cabinet respectively, sending controling instruction, and receive the information of described distance increasing unit, described voltage sensor, described current sensor and described adjustable electric load feedback; Described oil supply subsystem is connected with described distance increasing unit with oil depot respectively.
2. system according to claim 1 is characterized in that, described power distribution cabinet comprises:
Power circuit and discharge circuit, wherein,
Power circuit is used to provide described distance increasing unit work required high voltage;
Described discharge circuit comprises diode, discharge resistance, intelligent switch, first voltage sampling circuit, voltage comparator, voltage follower and second voltage sampling circuit; Wherein,
Second voltage sampling circuit, voltage follower, voltage comparator, intelligent switch and discharge resistance are connected successively, and the other end of second voltage sampling circuit is connected with the negative electrode of diode; The other end of discharge resistance is connected to the negative pole of power distribution cabinet, and the 3rd end of intelligent switch is connected with the positive pole of power distribution cabinet, and first voltage sampling circuit, one end links to each other with voltage comparator, and an end is connected with the anode of diode; Wherein, first voltage sampling circuit links to each other with voltage source with the common port of diode, and the common port of second voltage sampling circuit and diode is connected to the positive pole of power distribution cabinet, and described voltage source is used to provide target voltage.
3. system according to claim 1 is characterized in that, also comprises:
First air switch that is connected with described power distribution cabinet with described second relay respectively;
Second air switch that is connected with described adjustable electric load with described the 3rd relay respectively.
4. system according to claim 1 is characterized in that, also comprises:
The constant temperature subsystem comprises cooling tower, the cooling water pipeline that chilled water is provided and is arranged at temperature sensor on the described cooling water pipeline; Described cooling water pipeline is operated in the temperature range of trouble free service to guarantee distance increasing unit by described distance increasing unit.
5. according to any described system of claim 1-4, it is characterized in that, also comprise:
The ventilation subsystem is used for the test environment of described distance increasing unit is carried out ventilation, to guarantee the required environment temperature of described distance increasing unit operate as normal.
6. system according to claim 1 is characterized in that, also comprises:
The host computer that is connected with described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746739 CN203084110U (en) | 2012-12-30 | 2012-12-30 | Distance increasing device testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746739 CN203084110U (en) | 2012-12-30 | 2012-12-30 | Distance increasing device testing system |
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| CN203084110U true CN203084110U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220746739 Withdrawn - After Issue CN203084110U (en) | 2012-12-30 | 2012-12-30 | Distance increasing device testing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048572A (en) * | 2012-12-30 | 2013-04-17 | 长春易控汽车电子有限公司 | Testing system for range extender |
| CN110596590A (en) * | 2019-10-23 | 2019-12-20 | 上海元城汽车技术有限公司 | Reliability test method of range extender system |
-
2012
- 2012-12-30 CN CN 201220746739 patent/CN203084110U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048572A (en) * | 2012-12-30 | 2013-04-17 | 长春易控汽车电子有限公司 | Testing system for range extender |
| CN110596590A (en) * | 2019-10-23 | 2019-12-20 | 上海元城汽车技术有限公司 | Reliability test method of range extender system |
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