Testing method and system of speed changer

A test method and transmission technology, applied in the direction of machine gear/transmission mechanism testing, etc., can solve problems such as increased labor intensity

Active Publication Date: 2015-01-28
SHENGRUI TRANSMISSION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, a large number of experiments are required in the adaptive learning process, resulting in a greatly increased labor intensity in improving the shift quality

Method used

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  • Testing method and system of speed changer
  • Testing method and system of speed changer
  • Testing method and system of speed changer

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Experimental program
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Embodiment Construction

[0075] Aiming at the problem in the prior art that adopting self-adaptive learning to improve shifting quality causes heavy workload of staff, the present application discloses a transmission testing method and system.

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0077] figure 1 It is a flow chart of the transmission testing method disclosed in the embodiment of the present application.

[0078] see figure 1 , the method includes:

[0079] Step S101: Obtain the torque of the test motor and the pressure signals of each clutch of t...

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Abstract

The application discloses a testing method and system of a speed changer. The method is characterized in that an input torque of a testing motor and a speed changer structure parameter are obtained; a torque of a clutch is obtained by calculated according to the input torque of the testing motor and the speed changer structure parameter; a pressure signal of the clutch is obtained according to a pressure sensor at a pressure measuring port of the speed changer and a control current signal of the speed changer is obtained based on CAN communication, and a torque-pressure characteristic parameter, a pressure current characteristic parameter, and an oil charge characteristic parameter of the speed changer are obtained by calculation based on the signals; calculation is carried out to obtain a target current signal of a solenoid valve according to the characteristic parameters of the speed changer and the control torque of the clutch; and the opening degree of the solenoid valve is controlled based on the target current signal. Therefore, the clutch pressure is adjusted, thereby achieving an objective of reduction of a workload during the shifting quality improvement process.

Description

technical field [0001] The present application relates to the technical field of transmission control, and more specifically, relates to a transmission testing method and system. Background technique [0002] The transmission system in the automobile drive system is composed of mechanical parts, hydraulic parts and electronic control parts. During the manufacturing process of automobiles, EOL testing (End of Line Test) is usually performed on the transmission system to detect the Functions and various performances, when the transmission is installed after the EOL test, even if the hardware and software systems of the TCU (Transmission Control Unit, transmission control unit) in the transmission are consistent, but the hardware system of the transmission varies from component to component. There are inevitable errors in quality and assembly tolerances. Therefore, it is usually necessary to use TCU software for adaptive learning and adjustment to obtain the target current valu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/02
Inventor 郭伟戴振坤王书翰鲁曦范维栋
Owner SHENGRUI TRANSMISSION
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