Mechanical automatic gearbox test system and test method

Abstract

The invention discloses a testing system and a testing method of a mechanical automatic gearbox. The system comprises a base, a driving motor, a dynamic torque sensor, a speed reducer, a load motor, avehicle control unit, a motor controller and an upper computer. The gearbox is fixed at an upper end of a support, and the driving motor and the load motor are fixed through the support. An output shaft of the driving motor is connected with an input shaft of the gearbox through a first coupler; a second coupler is arranged on the output shaft of the gearbox; a third coupler is arranged on the output shaft of the load motor; the second coupler and the third coupler are connected through the dynamic torque sensor; and the dynamic torque sensor is fixed with the support, the driving motor and the load motor are electrically connected with the motor controller, a gearbox controller is arranged on the gearbox, the gearbox controller and the dynamic torque sensor are electrically connected with the vehicle control unit, and the upper computer is electrically connected with the motor controller, the vehicle control unit and the gearbox controller.

Description

technical field [0001] The invention relates to the technical field of gearbox testing, in particular to a mechanical automatic gearbox testing system and testing method. Background technique [0002] Electric control is one of the important methods of automatic transmission control, that is, the vehicle will automatically change gears according to road conditions and vehicle speed to adapt to the current vehicle conditions and improve driving comfort. [0003] In the research and development process of the transmission control, before the integrated test on the vehicle, a bench test is required. During the use of the existing test system, the noise is large, the entire bench is large, and the requirements for safety protection and installation environment are high, resulting in The cost of testing is relatively high, and due to the large volume of the testing system, it is not easy to install and disassemble. Contents of the invention [0004] The present invention aims ...

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Problems solved by technology

[0003] In the research and development process of the transmission control, before the integrated test on the vehicle, a bench test is required. During the use of the existing test system, the noise is large, the entire bench is large, and the requirements for safety protection and installation environment are high, resulting in The cost of testing is high, and due to the large size of the testing system, it is difficult to install and disassemble

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