Vehicle transmission control mechanism assembly testing bench

Abstract

The invention discloses a test-bed for testing the performances and durability of a shift control mechanism assembly of a vehicle which includes a test-bed body; in the test-bed body, an adjustable mounting adjusting framework with six directions is fixedly arranged at the front end; the shift control mechanism assembly of the vehicle is arranged in the mounting adjusting framework; the output end of the shift control mechanism assembly of the vehicle is connected with a gearbox by selecting and exchanging gearshift lines; the control frame of a PLC control system is arranged on a side wall at the back part in the test-bed body; an air cylinder loading system and a load system are arranged above the test-bed body. The assembly of the test-bed has the following advantages of: 1, being capable of simulating the actual operating condition of the shift control mechanism assembly of the vehicle; 2, being capable of simulating the gear shift and selecting motions on the shift control mechanism assembly of the vehicle; 3, dividing the test-bed controlled by the system into a 'manual' operating mode and an 'automatic' operating mode which can freely and mutually switch; 4, having the function of alarming when the time for gear shift is excessive.

Description

technical field [0001] The invention relates to a test bench for performance and durability testing of an automobile speed change control mechanism assembly. Background technique [0002] The automotive transmission control mechanism assembly is one of the key components of a passenger car, and its performance and service life are directly related to the use and safety performance of the vehicle. However, there is no testing equipment that integrates performance and durability in the testing equipment of the automobile transmission control mechanism assembly. Although there are many test methods and equipment for automobile transmission control mechanism assembly at home and abroad, most of the equipment is controlled by servo motors, and the load system mostly uses weights and cylinders. Not only the test cost is high, but also the load control cannot completely simulate the actual vehicle. State, as the patent No. is CN200410068018.1, and the technical scheme disclosed in...

AI Technical Summary

Problems solved by technology

In terms of testing equipment for automobile transmission control mechanism assembly, there is no testing equipment integrating performance and durability in China.

Although there are many test methods and equipment for automobile transmission control mechanism assembly at home and abroad, most of the equipment is controlled by servo motors, and the load system mostly uses weights and cylinders. Not only the test cost is high, but also the load control cannot completely simulate the actual vehicle. State, as the patent No. is CN200410068018.1, and the technical scheme disclosed in the patent titled "Car Transmission Shift Test Bench Control System" adopts computer programming control, and the power system adopts servo motor loading, which has complex control, troublesome program modification and The disadvantage of complex system maintenance is that its load system adopts damping load. Although it claims to provide the damping force under the real vehicle state, there will be certain errors in the testing and control procedures of the damping force, which will affect the testing of the entire system. Many Under the circumstances, it is not possible to fully simulate the actual vehicle state, especially when performing the static basic performance test of the transmission control mechanism assembly, the size of the shift gap and the shift force cannot be realized by simulating the load; another example is the patent number CN200510110178 .2 The patent titled "Test Bench for Automobile Shifter Assembly Performance Test" is only a test bench for testing the life of the synchronizer of the auto transmission

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