Drive axle testing method and system

A test method and drive axle technology, applied in the field of vehicles, can solve the problems of not fully reflecting the actual performance of the drive axle, limited parameters, etc., and achieve the effects of saving energy, scientific judgment standards, and reducing driving costs.

Active Publication Date: 2014-01-22
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the test method of the drive axle is set by the national standard (QCT533), but it only specifies the test methods for the mechanical strength, fatigue and noise of the drive axle. Such parameters are relatively limited and cannot fully reflect the actual performance of the drive axle.

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  • Drive axle testing method and system
  • Drive axle testing method and system

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Please refer to figure 1 , figure 1 It is a structural schematic diagram of a specific embodiment of the drive axle test system provided by the present invention.

[0048] The drive axle test method specifically comprises the following steps:

[0049] S11, assembling the drive axle complete machine to the test bench;

[0050] S12. Connect the output end and the input end of the driving axle to the electric dynamometer 1;

[0051] The test bench mainly includes electric dynamometer 1, transmission shaft 3, electrical control system and other components. When assembling the driving axle, the driving axle can be fixed on the test bench according to the assembly method of assembling on the whole machine, that is, t...

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Abstract

The invention discloses a drive axle testing method and a drive axle testing system. The method comprises the following steps of assembling the whole drive axle on a test bench; connecting the output end and the input end of the drive axle to an electric dynamometer; setting a plurality of first testing vehicle speeds and first testing input torques; detecting the output torque of the drive axle under different working conditions consisting of the set first testing vehicle speeds and the set first testing input torques to obtain the transmission efficiency of the drive axle under different working conditions. According to the drive axle testing method and the drive axle testing system, the transmission efficiency of the drive axle can be obtained, and can be used for reflecting the efficiency of transmitting the power of an engine to a wheel through the drive axle, so that the comprehensive performance detection of the drive axle before delivery is facilitated, and whether a product is qualified or not can be judged according to a more scientific standard; moreover, a user can control a vehicle to selectively work under the working condition under which the transmission efficiency is the highest according to performance parameters on the premise of meeting normal driving requirements to fulfill the aims of saving energy resources and lowering the driving cost.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a driving axle test method and system. Background technique [0002] The drive axle is applied to the vehicle and generally includes the final reducer, differential, wheel drive and axle housing, etc. The drive axle is at the end of the power transmission system, which can change the direction of force transmission, and transmit the output torque of the engine to the driving wheels through the final drive, differential, half shaft, etc., so as to reduce the speed and increase the torque. [0003] Therefore, the performance of the driving axle is an important indicator to measure the performance of the vehicle. When the transaxle is put into service, it is tested to determine whether it meets the service standard. [0004] At present, the test method of the drive axle is set by the national standard (QCT533), but it only specifies the test methods for the mechanical strength, f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/02G01M17/007
Inventor 刘刚侯建军范明德
Owner WEICHAI POWER CO LTD
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