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Bench testing system for combined automatic automobile speed changer

A technology of automatic transmission and bench testing, which is applied in the direction of machine gear/transmission mechanism testing, to achieve the effect of promoting research and development and application

Inactive Publication Date: 2014-11-05
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no bench test system that can be directly used for the test of the performance of the above-mentioned compound automatic transmission. The present invention is a set of bench test device invented for the bench test of the above-mentioned compound automatic transmission. The system can Quantitatively measure the transmission efficiency, economy, power, speed ratio control effect and stepless switching control effect of the transmission, which plays an important role in the development, application and detection of compound automatic transmissions

Method used

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  • Bench testing system for combined automatic automobile speed changer
  • Bench testing system for combined automatic automobile speed changer
  • Bench testing system for combined automatic automobile speed changer

Examples

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Embodiment Construction

[0012] Before the test, first increase the required load to the axle 3 through the left and right lifters and the booster mechanism 1 . During the test, by controlling the computer to send electrical signals to the stand clutch 23, the loading motor 38, and the supercharging mechanism 1, the disconnection and combination of the stand clutch 23 is controlled, and the wheel vertical load and running resistance are changed according to the test requirements, so that the test The institution operates according to the test intent. The control computer 33 receives the torque and the rotational speed from the input torque and rotational speed measuring instrument 17, outputs the torque and the rotational speed of the torque and rotational speed measuring instrument 8, and calculates the transmission efficiency of the compound automatic transmission; According to the signal measured by the drum speed sensor 64, the control computer 33 can calculate the vehicle speed, thereby measuring...

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Abstract

The invention belongs to the technical field of automobile tests and discloses a bench testing system for a combined automatic automobile speed changer to mainly test the performance of the combined automatic automobile speed changer, especially test the speed ratio control effect of stepless speed change, the step and stepless switching control effect and the dynamic property, the economical efficiency and the transmission efficiency of the combined automatic automobile speed changer. The purpose of testing the main performance of the combined automatic automobile speed changer can be achieved. The bench testing system is mainly composed of a control computer, a test bench and a roller testing mechanism, and is characterized in that sensors on the test bench and the roller testing mechanism measure a revolving speed signal, an oil consumption signal, a torque signal and the like, and the control computer carries out calculation according to all sensor signals to obtain a rate index of the economical efficiency, the dynamic property, the speed ratio control and the like of the combined automatic speed changer. The bench testing system is specially used for testing the economical efficiency, the dynamic property, the transmission efficiency, the speed ratio control effect and the switching control effect of the combined automatic automobile speed changer.

Description

technical field [0001] The invention relates to a bench testing system for a compound automatic transmission of an automobile, which belongs to the technical field of automobile testing. Background technique [0002] Invention patent 200710115088.1 discloses a compound automobile transmission, on the basis of the metal belt continuously variable transmission, a stepped transmission mechanism is added, and the metal belt continuously variable transmission and the stepped transmission constitute the compound automobile transmission. According to the needs of the working conditions of the vehicle, the continuously variable transmission and the stepped transmission can be respectively realized. [0003] At present, there is no bench test system that can be directly used for the test of the performance of the above-mentioned compound automatic transmission. The present invention is a set of bench test device invented for the bench test of the above-mentioned compound automatic tr...

Claims

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Application Information

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IPC IPC(8): G01M13/02
Inventor 王慧君邱绪云陆井玉曹凤萍刘永辉李爱娟徐传燕
Owner SHANDONG JIAOTONG UNIV
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