CN101923006A - Test bed for pure electric vehicle power assembly - Google Patents
Test bed for pure electric vehicle power assembly Download PDFInfo
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- CN101923006A CN101923006A CN 201010289131 CN201010289131A CN101923006A CN 101923006 A CN101923006 A CN 101923006A CN 201010289131 CN201010289131 CN 201010289131 CN 201010289131 A CN201010289131 A CN 201010289131A CN 101923006 A CN101923006 A CN 101923006A
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Abstract
The invention discloses a test bed for a pure electric vehicle power assembly. The test bed measures the power output of the pure electric vehicle power assembly by adopting two electric dynamometers. The pure electric vehicle power assembly is arranged on the test bed according to the installation modes and the fixed positions of a pure electric motor assembly and a gear box assembly; and the pure electric vehicle power assembly is connected with the two electric dynamometers through a driving shaft and a connecting flange, then is connected with a controller of each part, a cooling system, an electrical parameter tester, other parts and the like, and debugs the communication of the whole system. The test bed can be used for performing the following tests of: a functional verification test of a pure electric vehicle power assembly system, various performance test of the pure electric vehicle power assembly and various tests under the road working condition of the pure electric vehicle power assembly.
Description
Technical field
The invention belongs to power assembly system bench test field, be specifically related to a kind of automobile power assembly test-bed.
Background technology
Pure electric automobile power assembly is mainly debugged on car load at present, but be subjected to the restriction in car load space, for break down and problem after, check fault and change the parts difficulty, workload is big, and the open-air debugging of car load simultaneously is subjected to road, weather effect, and the test period is long, there is potential safety hazard in the vehicle instability.
At present, basically there is not the stand that effectively to examine the performance of pure electric power assembly, when the separate unit electric dynamometer carries out the pure electric power assembly test, can only measure pure electric power assembly output carrying out single shaft, can't examine the twin shaft output of pure electric power assembly, and when the separate unit electric dynamometer is measured pure electric power assembly, can't carry out road resistance simulation and car load inertia simulation, thereby can't carry out the every test of pure electric power assembly under road condition.
Summary of the invention
For solving the problems of the technologies described above, the invention discloses a kind of test bed for pure electric vehicle power assembly, to reach the purpose that the every performance of pure electric automobile power assembly is tested.
The present invention is by the following technical solutions:
A kind of test bed for pure electric vehicle power assembly comprises: electric dynamometer, transmission shaft, torque sensor, joint flange, pure electric power assembly, electric machine controller, direct supply, electric parameter tester, DC voltage and current sensor, alternating voltage and current sensor and cooling system.
Wherein, pure electric power assembly is fixed on the support body of test-bed, the variator of pure electric power assembly links to each other with transmission shaft, the two ends of transmission shaft link to each other with a joint flange respectively, and connects electric dynamometer respectively by joint flange, and on transmission shaft the mounting torque sensor; Electric machine controller links to each other with the pure electric power assembly motor by the ac power line; Direct supply links to each other with electric machine controller by the DC dynamo line, and electric machine controller is powered; DC voltage and current sensor link to each other with the DC dynamo line of close electric machine controller end; Alternating voltage and current sensor link to each other with the ac power line of close pure electric power assembly motor side; DC voltage and current sensor link to each other with electric parameter tester with alternating voltage, current sensor.Motor, the electric machine controller of cooling system and pure electric power assembly constitute cooling circuit by water pipe.
This test-bed can carry out the moment of resistance by two electric dynamometers and load and the car load inertia simulation, thereby road resistance situation that is virtually reality like reality, realize the every examination functional verification test of pure electric power assembly under road condition, comprise start-up function, electric power generation and electric functions test, battery management system function test, control strategy checking optimization Test etc.Also can carry out every performance test of pure electric automobile power assembly by this testing table, comprise external characteristics, motor and the variator matching performance of pure electric automobile power assembly, the whole transmission efficiency of power assembly etc.After the loading of road resistance pattern, can carry out the various tests under the road condition pattern, comprise car load max. speed, acceleration, grade climbing performance, continual mileage etc.Therefore, this test-bed can provide essential data support for pure electronic car load, and provides foundation for the research and development of next step car load.
Description of drawings
Fig. 1 is the layout synoptic diagram of test bed for pure electric vehicle power assembly;
Among the figure: 1-electric machine controller, 2-electric parameter tester, 3-direct supply, 4-DC voltage and current sensor, 5-DC dynamo line, 6-alternating voltage and current sensor, 7-ac power line, the 8-cooling system, the 9-electric dynamometer, 10-torque sensor, 11-joint flange, the 12-transmission shaft, the 13-pure electric power assembly.
Embodiment
The invention will be further described below in conjunction with Figure of description.
As shown in Figure 1, when this test bed for pure electric vehicle power assembly comprises electric dynamometer 9, transmission shaft 12, torque sensor 10, joint flange 11, pure electric power assembly 13, electric machine controller 1, direct supply 3(test motor is powered, can adopt battery or battery simulator according to different contents of the test), electric parameter tester 2, DC voltage and current sensor 6, alternating voltage and current sensor 8, cooling system 8.Wherein pure electric power assembly 13 is fixed on the support body of test-bed, the variator of pure electric power assembly 13 links to each other with transmission shaft 12, the two ends of transmission shaft 12 are joint flange 11 respectively, and link to each other with an electric dynamometer 9 respectively by joint flange 11, at transmission shaft 12 two ends torque sensor 10 is installed all.Electric machine controller 1 links to each other with the motor of pure electric power assembly 13 by ac power line 7; Direct supply 3 links to each other with electric machine controller 1 by DC dynamo line 5, and electric machine controller 1 is powered.DC voltage and current sensor 4 link to each other with the end of DC dynamo line 5 near electric machine controller 1; Alternating voltage and current sensor 8 link to each other near pure electric power assembly 13 motors one end with ac power line 7.DC voltage and current sensor 4 link to each other with electric parameter tester 2 with alternating voltage and current sensor 8, cooling system 8 constitutes cooling circuit, the direction that the direction indication chilled water among Fig. 1 shown in the arrow circulates with motor, the electric machine controller 1 of pure electric power assembly 13 by water pipe.
The power of the power assembly of electric automobile kinematic train in this test-bed passes to variator by motor and passes to electric dynamometer through main reducing gear, differential mechanism, transmission shaft, replace wheel by electric dynamometer, carry out loading moment and car load inertia simulation by electric dynamometer, real simulated actual road conditions road resistance.
After test-bed is put up, export with constant voltage by the control direct supply, the control of the host computer interface C that uses a computer AN communication program is by measured motor and controller thereof, and by controlling the control model of electric dynamometer, make its running, data such as the temperature of record motor and electric machine controller, AC and DC electric current, voltage, output speed, output torque.
Claims (2)
1. a test bed for pure electric vehicle power assembly comprises: electric dynamometer (9), transmission shaft (12), torque sensor (10), joint flange (11), pure electric power assembly (13), electric machine controller (1), direct supply (3), electric parameter tester (2), DC voltage and current sensor (6) and alternating voltage and current sensor (8);
It is characterized in that: described pure electric power assembly (13) is fixed on the support body of test-bed, the variator of pure electric power assembly (13) links to each other with transmission shaft (12), transmission shaft (12) two ends connect a joint flange (11) respectively, and connect electric dynamometer (9) respectively, and go up mounting torque sensor (10) at transmission shaft (12) by joint flange (11);
Described electric machine controller (1) links to each other with the motor of pure electric power assembly (13) by ac power line (7);
Described direct supply (3) links to each other with electric machine controller (1) by DC dynamo line (5), and electric machine controller (1) is powered;
Described DC voltage and current sensor (4) link to each other with the end of DC dynamo line (5) near electric machine controller (1), and alternating voltage and current sensor (8) link to each other with the end of ac power line (7) near pure electric power assembly (13) motor; Described DC voltage and current sensor (4) link to each other by signal wire electric parameter tester (2) again with alternating voltage and current sensor (8).
2. test bed for pure electric vehicle power assembly according to claim 1, it is characterized in that: also be provided with cooling system (8) on the described test-bed, described cooling system (8) constitutes cooling circuit with motor, the electric machine controller (1) of pure electric power assembly (13) by water pipe.
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| CN2010102891318A CN101923006B (en) | 2010-09-24 | 2010-09-24 | Test bed for pure electric vehicle power assembly |
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| CN2010102891318A CN101923006B (en) | 2010-09-24 | 2010-09-24 | Test bed for pure electric vehicle power assembly |
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| CN101923006A true CN101923006A (en) | 2010-12-22 |
| CN101923006B CN101923006B (en) | 2012-02-22 |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252856A (en) * | 2011-07-01 | 2011-11-23 | 深圳市航盛电子股份有限公司 | System for testing electric automobile power system assembly |
| CN102435300A (en) * | 2011-09-07 | 2012-05-02 | 上海中科深江电动车辆有限公司 | Powertrain noise detection rack system for electric vehicle |
| CN102494885A (en) * | 2011-11-11 | 2012-06-13 | 上海中科深江电动车辆有限公司 | Testing device of a pure electric vehicle power transmission system assembly |
| CN102507215A (en) * | 2011-11-28 | 2012-06-20 | 合肥瑞吉安新能源汽车科技有限公司 | Test bench for electric vehicle drive assembly |
| CN102788701A (en) * | 2011-05-20 | 2012-11-21 | 上海汽车集团股份有限公司 | Open type servo vibration work measurement system and method for achieving vehicle power or road tests |
| CN105136469A (en) * | 2015-07-23 | 2015-12-09 | 江苏大学 | Unmanned vehicle speed control method based on PSO and RBF neutral network |
| CN105573303A (en) * | 2016-02-01 | 2016-05-11 | 奇瑞汽车股份有限公司 | Automatic test system for electric vehicle motor control system rack |
| DE102015102848A1 (en) * | 2015-02-27 | 2016-09-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Test bench for an electrical machine of a motor vehicle |
| CN105938362A (en) * | 2016-06-27 | 2016-09-14 | 广州汽车集团股份有限公司 | System and method for detecting motor control performance in voltage drop |
| CN106153228A (en) * | 2016-07-25 | 2016-11-23 | 四川诚邦浩然测控技术有限公司 | A kind of new forms of energy electric machine combination property test system |
| CN107067870A (en) * | 2016-12-29 | 2017-08-18 | 安徽大学 | A kind of dynamic test analogue means suitable for electric automobile |
| CN108106860A (en) * | 2018-02-11 | 2018-06-01 | 智车优行科技（上海）有限公司 | Power assembly test bench |
| CN110864915A (en) * | 2019-12-05 | 2020-03-06 | 福建省汽车工业集团云度新能源汽车股份有限公司 | Electric automobile power assembly test system |
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
| CN111766079A (en) * | 2019-03-31 | 2020-10-13 | 上海华依科技集团股份有限公司 | Engine oil temperature control method applied to pure electric vehicle gearbox bench test |
| CN112098114A (en) * | 2020-09-18 | 2020-12-18 | 云动(上海)汽车技术有限公司 | Design method of universal platform for automobile power assembly performance test |
| CN112146894A (en) * | 2020-09-30 | 2020-12-29 | 重庆长安新能源汽车科技有限公司 | Method for testing and evaluating no-load loss of electric drive assembly based on whole vehicle working condition |
| CN113029626A (en) * | 2021-03-29 | 2021-06-25 | 重庆长安汽车股份有限公司 | Test method for pure electric vehicle air conditioner refrigeration performance rack |
| CN113295430A (en) * | 2021-05-11 | 2021-08-24 | 中国第一汽车股份有限公司 | Whole vehicle rack test method for verifying performance of air-cooled intercooler of passenger vehicle |
| CN113341259A (en) * | 2021-06-23 | 2021-09-03 | 重庆长安新能源汽车科技有限公司 | Whole vehicle high and low temperature testing system and method for new energy automobile |
| CN113758619A (en) * | 2021-08-12 | 2021-12-07 | 东风汽车股份有限公司 | Pure electric vehicle transmission system testing device and transmission efficiency testing method thereof |
| CN116430160A (en) * | 2023-06-14 | 2023-07-14 | 广汽埃安新能源汽车股份有限公司 | Device and method for testing shell stress of electric drive system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052261B2 (en) * | 1986-06-02 | 1993-01-12 | Toyota Motor Co Ltd | |
| EP0655617A2 (en) * | 1993-11-26 | 1995-05-31 | SCHENCK-KOMEG PRÜF- und AUTOMATISIERUNGSTECHNIK GmbH | Vehicle roller test bench |
| CN101000281A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Bench test device for power assembly of mixed power electric vehicle |
| CN101013063A (en) * | 2007-02-12 | 2007-08-08 | 重庆大学 | Test bench for performance of hybrid power vehicle transmission system |
| CN101303272A (en) * | 2008-04-29 | 2008-11-12 | 重庆大学 | Hybrid power automobile performance test simulation operation apparatus |
| CN101349611A (en) * | 2007-07-20 | 2009-01-21 | 奇瑞汽车股份有限公司 | Parallel type hybrid power assembly rack system |
| CN101393076A (en) * | 2007-09-19 | 2009-03-25 | 天津横河电子技术有限公司 | 55KW grade electricity loading test stand for automobile gear box low noise energy-conserving type under line detection and working method thereof |
| CN101650410A (en) * | 2009-06-30 | 2010-02-17 | 奇瑞汽车股份有限公司 | Test stand system of electric automobile driving motor |
| CN201965024U (en) * | 2010-09-24 | 2011-09-07 | 重庆长安汽车股份有限公司 | Pure electric vehicle power assembly test bench |
-
2010
- 2010-09-24 CN CN2010102891318A patent/CN101923006B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052261B2 (en) * | 1986-06-02 | 1993-01-12 | Toyota Motor Co Ltd | |
| EP0655617A2 (en) * | 1993-11-26 | 1995-05-31 | SCHENCK-KOMEG PRÜF- und AUTOMATISIERUNGSTECHNIK GmbH | Vehicle roller test bench |
| CN101000281A (en) * | 2006-12-28 | 2007-07-18 | 奇瑞汽车有限公司 | Bench test device for power assembly of mixed power electric vehicle |
| CN101013063A (en) * | 2007-02-12 | 2007-08-08 | 重庆大学 | Test bench for performance of hybrid power vehicle transmission system |
| CN101349611A (en) * | 2007-07-20 | 2009-01-21 | 奇瑞汽车股份有限公司 | Parallel type hybrid power assembly rack system |
| CN101393076A (en) * | 2007-09-19 | 2009-03-25 | 天津横河电子技术有限公司 | 55KW grade electricity loading test stand for automobile gear box low noise energy-conserving type under line detection and working method thereof |
| CN101303272A (en) * | 2008-04-29 | 2008-11-12 | 重庆大学 | Hybrid power automobile performance test simulation operation apparatus |
| CN101650410A (en) * | 2009-06-30 | 2010-02-17 | 奇瑞汽车股份有限公司 | Test stand system of electric automobile driving motor |
| CN201965024U (en) * | 2010-09-24 | 2011-09-07 | 重庆长安汽车股份有限公司 | Pure electric vehicle power assembly test bench |
Non-Patent Citations (1)
| Title |
|---|
| 《中国公路学报》 20050430 王伟华等 混合动力汽车动力总成试验台研究 103-106 1-2 第18卷, 第2期 2 * |
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| CN102788701A (en) * | 2011-05-20 | 2012-11-21 | 上海汽车集团股份有限公司 | Open type servo vibration work measurement system and method for achieving vehicle power or road tests |
| CN102788701B (en) * | 2011-05-20 | 2015-08-19 | 上海汽车集团股份有限公司 | Open servo vibration power-measuring system and realize vehicle power or Paving Test Methods |
| CN102252856A (en) * | 2011-07-01 | 2011-11-23 | 深圳市航盛电子股份有限公司 | System for testing electric automobile power system assembly |
| CN102435300A (en) * | 2011-09-07 | 2012-05-02 | 上海中科深江电动车辆有限公司 | Powertrain noise detection rack system for electric vehicle |
| CN102494885A (en) * | 2011-11-11 | 2012-06-13 | 上海中科深江电动车辆有限公司 | Testing device of a pure electric vehicle power transmission system assembly |
| CN102507215A (en) * | 2011-11-28 | 2012-06-20 | 合肥瑞吉安新能源汽车科技有限公司 | Test bench for electric vehicle drive assembly |
| DE102015102848A1 (en) * | 2015-02-27 | 2016-09-01 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Test bench for an electrical machine of a motor vehicle |
| CN105136469A (en) * | 2015-07-23 | 2015-12-09 | 江苏大学 | Unmanned vehicle speed control method based on PSO and RBF neutral network |
| CN105573303A (en) * | 2016-02-01 | 2016-05-11 | 奇瑞汽车股份有限公司 | Automatic test system for electric vehicle motor control system rack |
| CN105938362A (en) * | 2016-06-27 | 2016-09-14 | 广州汽车集团股份有限公司 | System and method for detecting motor control performance in voltage drop |
| CN106153228A (en) * | 2016-07-25 | 2016-11-23 | 四川诚邦浩然测控技术有限公司 | A kind of new forms of energy electric machine combination property test system |
| CN107067870A (en) * | 2016-12-29 | 2017-08-18 | 安徽大学 | A kind of dynamic test analogue means suitable for electric automobile |
| CN107067870B (en) * | 2016-12-29 | 2019-08-02 | 安徽大学 | A kind of dynamic test simulator suitable for electric car |
| CN108106860A (en) * | 2018-02-11 | 2018-06-01 | 智车优行科技（上海）有限公司 | Power assembly test bench |
| CN111766079A (en) * | 2019-03-31 | 2020-10-13 | 上海华依科技集团股份有限公司 | Engine oil temperature control method applied to pure electric vehicle gearbox bench test |
| CN110864915A (en) * | 2019-12-05 | 2020-03-06 | 福建省汽车工业集团云度新能源汽车股份有限公司 | Electric automobile power assembly test system |
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
| CN112098114A (en) * | 2020-09-18 | 2020-12-18 | 云动(上海)汽车技术有限公司 | Design method of universal platform for automobile power assembly performance test |
| CN112146894A (en) * | 2020-09-30 | 2020-12-29 | 重庆长安新能源汽车科技有限公司 | Method for testing and evaluating no-load loss of electric drive assembly based on whole vehicle working condition |
| CN112146894B (en) * | 2020-09-30 | 2022-06-21 | 重庆长安新能源汽车科技有限公司 | Method for testing and evaluating no-load loss of electric drive assembly based on whole vehicle working condition |
| CN113029626A (en) * | 2021-03-29 | 2021-06-25 | 重庆长安汽车股份有限公司 | Test method for pure electric vehicle air conditioner refrigeration performance rack |
| CN113295430A (en) * | 2021-05-11 | 2021-08-24 | 中国第一汽车股份有限公司 | Whole vehicle rack test method for verifying performance of air-cooled intercooler of passenger vehicle |
| CN113341259A (en) * | 2021-06-23 | 2021-09-03 | 重庆长安新能源汽车科技有限公司 | Whole vehicle high and low temperature testing system and method for new energy automobile |
| CN113758619A (en) * | 2021-08-12 | 2021-12-07 | 东风汽车股份有限公司 | Pure electric vehicle transmission system testing device and transmission efficiency testing method thereof |
| CN116430160A (en) * | 2023-06-14 | 2023-07-14 | 广汽埃安新能源汽车股份有限公司 | Device and method for testing shell stress of electric drive system |
| CN116430160B (en) * | 2023-06-14 | 2023-09-12 | 广汽埃安新能源汽车股份有限公司 | Device and method for testing shell stress of electric drive system |
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Application publication date: 20101222 Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd.|CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Contract record no.: 2018500000018 Denomination of invention: Test bed for pure electric vehicle power assembly Granted publication date: 20120222 License type: Exclusive License Record date: 20181121 |
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Effective date of registration: 20181227 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Patentee before: Chongqing Changan Automobile Co.,Ltd. |
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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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