CN104155039A - Testing method for measuring efficiency of electric drive system of new energy automobile - Google Patents
Testing method for measuring efficiency of electric drive system of new energy automobile Download PDFInfo
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- CN104155039A CN104155039A CN201410322461.0A CN201410322461A CN104155039A CN 104155039 A CN104155039 A CN 104155039A CN 201410322461 A CN201410322461 A CN 201410322461A CN 104155039 A CN104155039 A CN 104155039A
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Abstract
The invention discloses a testing method for measuring efficiency of an electric drive system of a new energy automobile. The testing method comprises the following steps: hanging an electric driver, to be tested, of the new energy automobile on a connecting frame of a truss of a testing platform; exerting pressure on a left jack and a right jack respectively; recording corresponding data automatically and printing a testing report through a computer. A control system provided by the invention adopts bilateral control technology to recycle braking regenerative energy, and can keep higher power factor and efficiency within the range of rated load of 25% to 120%, so that energy-saving effect is more obvious during light-load operation and electrical energy can be saved greatly during long-term use.
Description
Technical field
The present invention is specifically related to a kind of method of testing of measuring new-energy automobile power drive system efficiency.
Background technology
For engine-driven automobile, drive system relies on the power that engine provides, and power passes to wheel via variator, differential mechanism and semiaxis.At present automobile adopts front-wheel drive more, thus front-wheel with a set of mechanical handling structure so that front-wheel produces certain corner realizes and turning to, but such system is owing to turning to and driving all at front-wheel, so whole mechanical system structure is just very complicated.Simultaneously, in the energy increasingly serious today, the usable range of conventional engines can more and more be restricted, and people are seeking a kind of new forms of energy of more clean, environmental protection, so electric automobile is more and more subject to people's attention.If the electric vehicle master of present stage is changed and is formed a little on the basis of existing automobile powered by conventional energy, adopt single motor drive mode, starting to change into motor, wheel box, only retain primary speed-down gear, other drive system structure are constant.The same with automobile powered by conventional energy, single motor-driven electric automobile only adopts a motor horizontal, power passes to both sides wheel through speed reducer differential device, but because the peak power of motor is high, torque capacity is high, poor radiation, unstable properties and the problem such as involve great expense, electric automobile is involved great expense, and usable range is restricted.
There are the following problems for prior art: for the high vehicle of power requirement, the vehicle of dual motors drive is higher to the conditional request of both sides motor, and production cost is increased greatly.The wheel hub motor of 4 In-wheel motor driving automobiles exists shortcoming: wheel hub motor self heaviness; fault is high; maintenance inconvenience-must first wheel hub be disassembled just and can be keeped in repair; electronic devices and components in motor are fragile; the end cap installed surface of motor; particularly the waterproofing protection at dead eye place is more difficult, and wheel hub motor cost is higher etc.
Summary of the invention
Goal of the invention: the invention provides a kind of method of testing of measuring new-energy automobile power drive system efficiency.
Technical scheme: a kind of method of testing of measuring new-energy automobile power drive system efficiency, tested new-energy automobile electricity is driven to driver to be suspended on test board, make the power drive tire of tested new-energy automobile power drive system touch energy transfer cylinder, make its axis parallel with the axis of energy transfer cylinder, and two axial lines plane is perpendicular to the capable frame working face of test board; Respectively left lifting jack and right lifting jack are exerted pressure, the signal that two pressure transducers in left lifting jack and right lifting jack spread out of reaches preset value, stops pressurization; Start the power drive tire of tested new-energy automobile power drive system, regulate the speed, by the control of computing machine, progressively increase resistance, resistance while making its simulated resistance reach vehicle highway actual motion, carry out respectively the test run under zero load, fully loaded, 50% load and 75% loading condition, computing machine records corresponding data automatically, and calculates the efficiency of new-energy automobile power drive system.
It is 1000-6000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
Described resistance is 1500N-3600N.
It is 4000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
Described resistance is 2800N.
Beneficial effect: advantage of the present invention is:
1, control system adopts two-way control technology, reclaim braking regenerated energy, and within the scope of 25%～120% nominal load, all can keep higher power factor and efficiency, while making light running, energy-saving effect is more remarkable, in long-term use, can save significantly electric energy;
2, the utilization of the high energy-conservation rare earth resources of high-level efficiency, compares other quality of materials, volume can reduce 30%;
3, torque ripple is little, and rotating speed is steady, and quick and precisely, overload capacity is strong for dynamic response, and torque capacity can reach the more than 3 times of nominal torque, highly beneficial to electric system stable operation under load torque variation operating mode greatly.
Embodiment
Below in conjunction with specific embodiment, the present invention will be described in detail.
Specific embodiment:
A kind of method of testing of measuring new-energy automobile power drive system efficiency, tested new-energy automobile electricity is driven to driver to be suspended on test board, make the power drive tire of tested new-energy automobile power drive system touch energy transfer cylinder, make its axis parallel with the axis of energy transfer cylinder, and two axial lines plane is perpendicular to the capable frame working face of test board; Respectively left lifting jack and right lifting jack are exerted pressure, the signal that two pressure transducers in left lifting jack and right lifting jack spread out of reaches preset value, stops pressurization; Start the power drive tire of tested new-energy automobile power drive system, regulate the speed, by the control of computing machine, progressively increase resistance, resistance while making its simulated resistance reach vehicle highway actual motion, carry out respectively the test run under zero load, fully loaded, 50% load and 75% loading condition, computing machine records corresponding data automatically, and calculates the efficiency of new-energy automobile power drive system.
It is 1000-6000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
Described resistance is 1500N-3600N.
It is 4000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
Described resistance is 2800N.
Claims (5)
1. a method of testing of measuring new-energy automobile power drive system efficiency, it is characterized in that: tested new-energy automobile electricity is driven to driver and be suspended on test board, make the power drive tire of tested new-energy automobile power drive system touch energy transfer cylinder, make its axis parallel with the axis of energy transfer cylinder, and two axial lines plane is perpendicular to the capable frame working face of test board; Respectively left lifting jack and right lifting jack are exerted pressure, the signal that two pressure transducers in left lifting jack and right lifting jack spread out of reaches preset value, stops pressurization; Start the power drive tire of tested new-energy automobile power drive system, regulate the speed, by the control of computing machine, progressively increase resistance, resistance while making its simulated resistance reach vehicle highway actual motion, carry out respectively the test run under zero load, fully loaded, 50% load and 75% loading condition, computing machine records corresponding data automatically, and calculates the efficiency of new-energy automobile power drive system.
2. the method for testing of measurement new-energy automobile power drive system efficiency according to claim 1, is characterized in that: it is 1000-6000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
3. the method for testing of measurement new-energy automobile power drive system efficiency according to claim 1, is characterized in that: described resistance is 1500N-3600N.
4. the method for testing of measurement new-energy automobile power drive system efficiency according to claim 2, is characterized in that: it is 4000MPa that the signal that two pressure transducers in described left lifting jack and right lifting jack spread out of reaches preset value.
5. the method for testing of measurement new-energy automobile power drive system efficiency according to claim 3, is characterized in that: described resistance is 2800N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322461.0A CN104155039A (en) | 2014-07-05 | 2014-07-05 | Testing method for measuring efficiency of electric drive system of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410322461.0A CN104155039A (en) | 2014-07-05 | 2014-07-05 | Testing method for measuring efficiency of electric drive system of new energy automobile |
Publications (1)
| Publication Number | Publication Date |
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| CN104155039A true CN104155039A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410322461.0A Pending CN104155039A (en) | 2014-07-05 | 2014-07-05 | Testing method for measuring efficiency of electric drive system of new energy automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890908A (en) * | 2016-04-11 | 2016-08-24 | 北京新能源汽车股份有限公司 | System and method of analyzing energy consumption of electric vehicle |
| CN112230150A (en) * | 2020-05-25 | 2021-01-15 | 青海绿能数据有限公司 | New energy operation efficiency detection method |
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| EP1491874A1 (en) * | 2003-06-25 | 2004-12-29 | DaimlerChrysler AG | Vehicle testing stand |
| CN101241168A (en) * | 2007-08-31 | 2008-08-13 | 奇瑞汽车股份有限公司 | Hybrid power automobile drive electric motor test bench and test method |
| CN101846585A (en) * | 2010-05-21 | 2010-09-29 | 重庆长安汽车股份有限公司 | Test method of automobile transmission system efficiency |
| CN202547946U (en) * | 2011-12-01 | 2012-11-21 | 湖南晟通科技集团有限公司 | Electric vehicle power-driven system artificial testboard truss |
| CN202836845U (en) * | 2012-06-25 | 2013-03-27 | 安徽安凯汽车股份有限公司 | Test system for measuring efficiency of new energy automobile electric driving system |
| CN103134692A (en) * | 2011-12-01 | 2013-06-05 | 湖南晟通科技集团有限公司 | Simulation test board line frame and test method for electric car power-driven system |
-
2014
- 2014-07-05 CN CN201410322461.0A patent/CN104155039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1491874A1 (en) * | 2003-06-25 | 2004-12-29 | DaimlerChrysler AG | Vehicle testing stand |
| CN101241168A (en) * | 2007-08-31 | 2008-08-13 | 奇瑞汽车股份有限公司 | Hybrid power automobile drive electric motor test bench and test method |
| CN101846585A (en) * | 2010-05-21 | 2010-09-29 | 重庆长安汽车股份有限公司 | Test method of automobile transmission system efficiency |
| CN202547946U (en) * | 2011-12-01 | 2012-11-21 | 湖南晟通科技集团有限公司 | Electric vehicle power-driven system artificial testboard truss |
| CN103134692A (en) * | 2011-12-01 | 2013-06-05 | 湖南晟通科技集团有限公司 | Simulation test board line frame and test method for electric car power-driven system |
| CN202836845U (en) * | 2012-06-25 | 2013-03-27 | 安徽安凯汽车股份有限公司 | Test system for measuring efficiency of new energy automobile electric driving system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890908A (en) * | 2016-04-11 | 2016-08-24 | 北京新能源汽车股份有限公司 | System and method of analyzing energy consumption of electric vehicle |
| CN112230150A (en) * | 2020-05-25 | 2021-01-15 | 青海绿能数据有限公司 | New energy operation efficiency detection method |
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Application publication date: 20141119 |