Vehicle hub and power assembly test system and test method

A technology of powertrain and test system, applied in wheel test, vehicle test, machine/structural component test, etc., can solve the problem of high cost, achieve low cost, high test accuracy, simple and reliable switching effect

Pending Publication Date: 2021-07-20
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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  • Application Information

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Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the present invention provides a complete wheel hub and powertrain testing system and testing method, which solves the problem that the current complete wheel hub and powertrain need to use two sets of testing systems, and the cost is relatively high

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  • Vehicle hub and power assembly test system and test method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] The invention provides a complete wheel hub and powertrain testing system. During the complete wheel hub test, the performance test and durability test of the whole vehicle are mainly completed, and four dynamometer units are used to perform 2-wheel drive mode or 4-wheel drive mode on the 2-axis complete vehicle. Driving mode test, while the dynamometer unit and axial flow fan unit can simulate the road load conditions and simulate the real road;

[0031] During the powertrain test, the performance and durability test of the powertrain is mainly completed. Two of the four dynamometer units are used, one is used as a drive unit, and the other is used as a loading unit. The drive unit simulates the characteristic curve of the engine or motor. The loading unit simulates the road load resistance of the vehicle to complete the powertrain perf...

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Abstract

The invention discloses a vehicle hub and power assembly test system and test method, and the system comprises a power measurement unit, the power measurement unit is used for transmitting the rotating speed and the torque value of the engine to a bench controller and simulating different road load environments or transmitting the rotating speed and the torque value of the power assembly to the bench controller and simulating an engine characteristic curve and different road load environments; a frequency converter unit used for providing a power supply for the power measuring unit and adjusting the rotating speed of the power measuring unit; the bench controller connected with an industrial personal computer, and used for receiving the rotating speed and the torque value transmitted by the power measuring unit and controlling the power measuring unit through the frequency converter unit to simulate different road load environments or simulate engine characteristic curves and different road load environments. The test consistency is good, the test precision is high, the switching of two test states is simple and reliable, one test system can carry out two types of tests, and the cost is lower.

Description

technical field [0001] The invention belongs to the technical field of automobile testing and testing, in particular to a testing system and testing method for a complete wheel hub and a power assembly. Background technique [0002] At present, the chassis dynamometer is mostly used for the indoor testing of the whole vehicle. The chassis dynamometer can test the performance of the whole vehicle, but there are also some shortcomings: poor adaptability, requirements for the wheelbase and wheelbase of the whole vehicle, tires and dynamometers. There is slippage in the power hub, and the test accuracy is low. The bench dynamometer can only test the powertrain. Although the consistency is good, it cannot completely simulate the vehicle and road test environment, and the vehicle matching test will be carried out later. Therefore, inventing a comprehensive test system that can freely switch between the vehicle hub test and the powertrain test system can greatly save costs. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M17/013
CPCG01M17/007G01M17/013
Inventor 程龙严鉴铂刘义许明中郭明张孟锋
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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