Dynamic shift performance evaluation system for manual transmission of passenger car

A technology of shifting performance and transmission, applied in the field of transmission, can solve problems such as insufficient objective evaluation, poor consistency, and subjective score correspondence.

Inactive Publication Date: 2018-11-06
SHANGHAI AUTOMOBILE GEAR WORKS
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Problems solved by technology

[0003] The purpose of the present invention is to make up for the fact that the current objective evaluation of the dynamic shift performance of the automobile manual transmission is not comprehensive enough, and cannot correspond to the subjective evaluation, and cannot better cover the weight influence between various facto

Method used

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  • Dynamic shift performance evaluation system for manual transmission of passenger car
  • Dynamic shift performance evaluation system for manual transmission of passenger car
  • Dynamic shift performance evaluation system for manual transmission of passenger car

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Embodiment Construction

[0018] like figure 1 As shown, the detection device of this embodiment includes: two angle sensors 3 and 4 and a displacement sensor 2 jointly constitute a three-degree-of-freedom mechanism test space three coordinates, and are connected with the three-way force sensor 5, and then the three-way force sensor It is fixed at the shift lever 6, and the shift force and shift displacement data are collected in real time during the shift process and recorded in the computer 7. The number of sensors used is small, the installation is convenient and the practicability is strong.

[0019] like Figure 2 ~ Figure 4 As shown, in this embodiment, the synchronous impulse test, the synchronous stiffness test and the secondary impact test are respectively carried out by the above-mentioned device, and the obtained data are weighted and calculated by the shift performance scoring system to obtain the overall evaluation score of the shift performance.

[0020] figure 2 The data collection o...

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Abstract

A dynamic shift performance evaluation system for the manual transmission of a passenger car comprises a shift performance test device and a shift performance objective scoring system connected thereto. The shift performance test device acquires shift force and shift displacement data during a dynamic shifting process in real time, calculates dynamic shift performance evaluation indexes by a detection and analysis module, substitutes the dynamic shift performance evaluation indexes into a corresponding fitting function obtained by an evaluation scale table, calculates the weighted values of respective indexes and respective shifts by a relational matrix method, and finally calculates the objective score of the overall dynamic shift performance so as to objectively evaluate the dynamic shift performance of the vehicle. The system can overcome the inaccuracy and the poor consistency of an evaluation result due to the human factors of subjective evaluation, can objectively and accuratelyscore the dynamic shift performance of the manual transmission of the automobile, evaluates the dynamic shift performance, and provides an improvement direction for the shift performance of the manualtransmission.

Description

technical field [0001] The invention relates to a technology in the field of transmission, in particular to an evaluation system for the dynamic shift performance of a manual transmission suitable for a passenger car with a transmission torque below 400Nm. Background technique [0002] The shift performance evaluation of automobile manual transmission is usually carried out by the subjective and qualitative evaluation methods of relevant engineers, and there are human factors that lead to inaccurate and poor consistency of evaluation results. The existing objective evaluation technology can evaluate the quality of the shifting performance of the automobile transmission by testing the relationship between the shifting force and the shifting stroke, but it is not comprehensive enough. Contents of the invention [0003] The purpose of the present invention is to make up for the fact that the current objective evaluation of the dynamic shift performance of the automobile manua...

Claims

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Application Information

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IPC IPC(8): G01M13/02
Inventor 刘荔斌王泽贵张银超许长龙
Owner SHANGHAI AUTOMOBILE GEAR WORKS
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