Transmission efficiency test bench of AMT (Automated Mechanical Transmission) gear selection executing mechanism

Abstract

The invention discloses a transmission efficiency test bench of an AMT (Automated Mechanical Transmission) gear selection executing mechanism. The transmission efficiency test bench comprises a test bench plate, a servo motor, a magnetic powder brake, a power transmission mechanism, a force sensor, a limiting switch, three rotation speed torque sensors and six shaft couplings. The transmission efficiency test bench of the AMT gear selection executing mechanism, disclosed by the invention, has the advantages of simple structure and convenience in testing operation; rotation speed torque values of an AMT gear selecting primary worm gear as well as an input shaft and an output shaft of an AMT gear selection secondary gear executing mechanism can be accurately measured, so that the actual transmission efficiency of the AMT gear selection executing mechanism is figured out.

Description

Technical field [0001] The invention relates to a mechanism transmission efficiency test device, in particular to a test bench capable of simultaneously measuring the transmission efficiency of a worm gear and a rack and pinion. Background technique [0002] The gear selection actuator is one of the important components of the motor-driven AMT. It is the executor of the AMT shifting action. The quality of its design and manufacturing directly affects the performance of the AMT, and then affects the performance of the entire vehicle. Therefore, it is necessary to ensure that the gear shift mechanism responds quickly and works stably and reliably. The dynamic characteristics of the actuator directly affect the starting, shifting quality and the reliability of the entire system. According to the working characteristics and use requirements of the system, designing and optimizing the structural parameters of the actuator to increase the reliability of the actuator is an important l...

AI Technical Summary

Problems solved by technology

[0004] One of the major reasons for the slowness of the motor-driven AMT gear shifting action is that the transmission efficiency of the gear selection execution action is not high enough, and there is a large energy loss in the gear selection process. In order to grasp the actual transmission efficiency of the gear selection actuator, in order to pass Constantly experiment, optimize, and re-experiment methods to find out the method of improving the efficiency of the gear selection actuator and select a reasonable gear selection drive motor to work together, thereby improving the transient performance of the gear selection actuator, maximizing energy saving and prolongation. To ensure the service life of the servo motor, there must be a device specially used to test the transmission efficiency of the gear selection actuator

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