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System and method for testing shifting force at shifting block in working state of a transmission

A working state and testing system technology, which is applied to the reliability and shifting performance analysis of the transmission shift mechanism, and the test system field of the shifting force at the shift head under the transmission working state. It can solve the problem that the test system has not yet appeared and cannot be measured by sensors. Shift force and other issues, to achieve accurate and reliable test results, compact and simple structure

Active Publication Date: 2020-03-06
FAW JIEFANG AUTOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, due to the compact structure of the AMT transmission, it is generally impossible to directly measure the shifting force through the sensor, regardless of the bench or the whole vehicle test.
There is no domestic test system specifically for the shifting force at the dial.

Method used

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  • System and method for testing shifting force at shifting block in working state of a transmission
  • System and method for testing shifting force at shifting block in working state of a transmission
  • System and method for testing shifting force at shifting block in working state of a transmission

Examples

Experimental program
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Embodiment

[0037] Paste the strain gauges 12 on the two sides of the toggle head where the tensile stress and compressive stress are relatively large. Taking the Wheatstone half-bridge wiring method as an example, the bridge is connected to the test device 15 . The connecting plate 1 is installed on the shift top cover through bolts, and the transverse adjustment plate 5 is installed on the connecting plate 1 through bolts. Select the height adjustment gasket 13 of appropriate thickness, and connect the longitudinal adjustment plate 14, the height adjustment gasket 13 and the horizontal adjustment plate 5 through bolts without tightening. The front end power transmission shaft 4 is installed in the front end linear bearing 6, the rear end power transmission shaft 9 is installed in the rear end linear bearing 8, the limit bolt 11 passes through the inner hole of the fixed block 10, and the dial block 3 is threaded. , front end force transmission shaft 4, tension pressure sensor 7, rear en...

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Abstract

The invention relates to a system and a method for testing shifting force at a shifting block in a working state of a transmission and belongs to the field of transmission test analysis. The system isformed by a calibration device, 2 to 4 strain gauges and a test device. In the working state of a rack or a whole vehicle, the system for testing shifting force at the shifting block has compact andsimple structure, the system can be effectively used for monitoring the gear shifting force in the gear shifting process of an AMT transmission, according to the testing method, a strain gauge is pasted at the shifting block according to a Wheatstone half-bridge or full-bridge, and a calibration device is used for testing the calibration relation between the gear shifting force and strain. The calibrated shifting block is used, the strain value of the shifting block in the gear shifting process is tested in the working state of the whole vehicle or the rack, the gear shifting force is calculated according to the calibration relation, and the test result is accurate and reliable.

Description

technical field [0001] The invention belongs to the technical field of transmission testing and analysis, and in particular relates to a testing system and a testing method for a shifting force at a shifting head in a working state of a transmission, and is mainly applied to reliability and shifting performance analysis of a shifting mechanism of a transmission. Background technique [0002] The transmission is the key assembly of the car. For the AMT transmission, the automatic shift mechanism is adopted. The impact force during the shift process cannot be perceived by the driver, nor can it be weakened by flexibility. Excessive impact force may cause damage to parts. At the same time, testing the characteristics of the force during the shifting process is very important for analyzing the control response and motion characteristics of the actuator. For manual transmissions, testing the shift force at the dial is a necessary condition for analyzing the efficiency of the shif...

Claims

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Application Information

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IPC IPC(8): G01L5/22
CPCG01L5/223
Inventor 杨启李凯李浩亮宋健李凯鹏
Owner FAW JIEFANG AUTOMOTIVE CO
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