Gear-selecting and shifting performance automatic testing device and method

Abstract

The invention discloses a gear-selecting and shifting performance automatic testing device, comprising a lifting mechanism, a locking mechanism, a gear-selecting and shifting mechanism and a gear rod support, wherein the lifting mechanism comprises an annular inner wall, a lead screw, an annular outer wall, a nut, a top cover plate, a worm wheel and worm mechanism and a handle which is used for driving a worm of the worm wheel and worm mechanism; the locking mechanism comprises a locking screw rod, a locking pad block and a locking unit; the gear-selecting and shifting mechanism comprises a longitudinal slide rail, a longitudinal sliding plate, a transverse slide rail, a transverse sliding plate, a spring, a connection rod, a longitudinal sliding plate driving mechanism and a transverse sliding plate driving mechanism; and the gear rod support comprises a supporting plate I and a supporting plate II. Simultaneously, the invention also discloses a gear-selecting and shifting performance automatic testing method. The gear-selecting and shifting performance automatic testing device and method disclosed by the invention has the advantage of being capable of precisely and quickly carrying out a gear-selecting and shifting operation and dynamically measuring performance parameters in a gear-selecting and shifting process, and having quick test response, reliable test data and high precision.

Description

technical field [0001] The present invention relates to a performance test device and method for automobile (transmission shift selection), in particular to a high dynamic automatic shift performance test device and method for automobile transmission test bench (the device can not only be used in test It can also be used alone as a device for testing and evaluating gear selection and shifting performance). Background technique [0002] The shifting device is widely used at present, and it is a new technology in the field of modern automatic control. And its application on the automobile transmission test bench has played a vital role in the development of the automobile transmission test technology. [0003] The main purpose of the existing gear selection and shift testing device and its method is to replace the manual operation of the transmission gear selection and shift, and at the same time can simply measure the size of the gear selection and shift force. However, in ...

AI Technical Summary

Problems solved by technology

However, in order to simulate the real shifting process, the shifting device needs to be disengaged from the gear lever head after performing a gear shift. Due to the gap between the gear positions and the effect of the spring, the gear lever head will have a certain degree of movement relative to the original position after being disengaged. Therefore, during the next shifting action, an abnormal impact will occur during the connection between the gear selection mechanism and the gear lever head, or the correct connection with the gear lever head will not be possible.

In turn, it affects the life of the gear selection device and the accuracy of all parameters measured during the gear selection process

[0004] At the same time, the existing gear selection device is a single control mode, which can only be used as a part of the test bench to perform the gear selection operation and perform simple force measurements, but it cannot be used alone for the performance of the transmission gear selection There are also certain limitations in the scope of application

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