Vehicle power assembly test system
A powertrain and test system technology, applied in the field of vehicle powertrain test systems, can solve the problems of inability to test the power of the on-board motor, increase the test cost, and affect the evaluation results of the vehicle power system.
Pending Publication Date: 2020-09-18
NIO CO LTD
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Problems solved by technology
Since the working parameters of each dynamometer are fixed, when a dynamometer is used to test different vehicle-mounted motors, if the working parameters of the dynamometer do not match those of the vehicle-mounted motor, then the It is impossible to carry out effective power test on the vehicle electric motor, thus affecting the evaluation result of the vehicle power system
If dynamometers with matching working parameters are selected to test different vehicle-mounted electric motors, the test cost will be greatly increased
Method used
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[0026] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.
[0027] It should be noted that in the description of the present invention, the terms "first", "second", "third" and "fourth" are used for description purposes only, and should not be understood as indicating or implying relative importance. The term "A and / or B" means all possible combinations of A and B, such as only A, only B or A and B. The term "at least one of A or B" or "at least one of A and B" has a similar meaning to "A and / or B" and may include only A, only B or both A and B. The terms "a" and "the" in the singular may also include plural forms. In addition, unless otherwise clearly stipulated and limited, the term "connection" should ...
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The invention relates to the technical field of vehicle measurement and control, particularly provides a vehicle power assembly test system, and aims to solve the technical problem of how to accurately test a vehicle power assembly with low cost. In the test system provided by the invention, the vehicle power assembly in a road load simulation system is connected with the tested power assembly, and the control system controls the vehicle power assembly and a motor in the tested power assembly to operate according to the test requirement so as to simulate the operation state of the tested vehicle under the road load working condition specified by the test requirement; and operation parameters of the motor of the tested power assembly are obtained and output during operation, so as to evaluate related performances of the tested power assembly according to the operation parameters. The working parameter range of the vehicle power assembly is wider than or equivalent to the working parameter range of the tested power assembly. The test system not only can carry out performance test on the tested power assembly in a full power range, but also can significantly reduce the test cost dueto the fact that no extra equipment which needs to be purchased is introduced.
Description
technical field [0001] The invention relates to the technical field of vehicle measurement and control, in particular to a vehicle powertrain test system. Background technique [0002] Before the vehicle leaves the factory or after a period of use, it is usually tested to determine the vehicle performance of the vehicle, such as power performance, braking performance, smooth handling performance, and NVH mute performance (noise, vibration, and harshness). At present, the conventional test method for the relevant performance of the power system is to use a dynamometer to test the vehicle-mounted electric motor, and evaluate the relevant performance of the power system of the vehicle according to the test results. Since the working parameters of each dynamometer are fixed, when a dynamometer is used to test different vehicle-mounted motors, if the working parameters of the dynamometer do not match those of the vehicle-mounted motor, then the It is impossible to conduct an eff...
Claims
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Login to View More IPC IPC(8): G01M17/007G01L3/24
CPCG01L3/242G01M17/007
Inventor 肖宁龚红兵唐德江詹兴泉王世朝梁冰冰孙晓博蒋国鑫刘兴旺周晓平甘全雨王立睿
Owner NIO CO LTD