Power assembly test bench

A powertrain and test bench technology, applied in vehicle testing, machine/structural component testing, measuring devices, etc., can solve problems such as potential safety hazards, vehicle instability, and long test cycles, and achieve simple and convenient operation , reduce safety hazards, and shorten the test cycle

Pending Publication Date: 2018-06-01
智车优行科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when testing on the whole vehicle, if a fault or problem is found during the test, due to the limitation of the space of the whole vehicle, it is not only difficult to check the fault and replace the parts, but also makes the workload relatively large
In addition, the vehicle test is easily affected by factors such as roads and weather, which may lead to a long test cycle and low test efficiency. If the debugging is not good, the vehicle may be unstable and there may be safety hazards

Method used

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  • Power assembly test bench

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Embodiment Construction

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0021] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0022] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0023] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The embodiment of the invention discloses a power assembly test bench. A power assembly is fixed on a bench. The transmission of the power assembly is connected with a transmission shaft. Each of thetwo ends of the transmission shafts is connected with an electric dynamometer. Two torque sensors are respectively arranged on the two sides of the transmission shaft, and are respectively close to the positions of the electric dynamometers. The drive motor of the power assembly is connected with a motor controller through an AC power line. A DC power supply is connected with the motor controller,a vehicle controller, a power distribution unit, a power battery pack, an auxiliary driving system and an automatic braking system through a DC cable. The input end of a frequency conversion cabinetis connected with an AC power supply, and the output end of the frequency conversion cabinet is connected with the electric dynamometers. The auxiliary driving system, the automatic braking system, the frequency conversion cabinet, the electric dynamometers, the power distribution unit, the power battery pack, the vehicle controller, the motor controller and an upper system are connected into a communication network through a CAN bus. The invention provides a power assembly test bench capable of testing and debugging an automatic braking system.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a power assembly test stand. Background technique [0002] With the development of powertrain technology, the powertrain system is slowly developing towards intelligent driving. Before the electric vehicle leaves the factory, it is necessary to test the performance of some equipment on the powertrain test bench for related debugging. [0003] The current powertrain test bench is mainly used to test the driving, energy, control logic and other functions of electric vehicles, and cannot test some key parts of intelligent driving such as automatic braking system. At present, when testing functions related to intelligent driving, it is usually carried out on the whole vehicle. However, when testing on a complete vehicle, if faults or problems are found during the testing process, due to the limitation of the space of the complete vehicle, it is not only difficult to check...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 李郑伟沈海寅
Owner 智车优行科技(上海)有限公司
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