AMT shift endurance quality testing bench

Abstract

The invention discloses a test bed of AMT shifting durability, which is characterized in that a left flywheel and a right flywheel are connected into a double-inertia flywheel group with united and synchronous rotation by an elastic shaft joint, a left transmission belt and a left driven belt wheel between a left half shaft and a right half shaft of a gear box as well as a right transmission beltand a right driven belt wheel between the ends of a left shaft and a right shaft of the double-inertia flywheel group respectively form a power transmission mechanism, and the power source of the double-inertia flywheel group is provided by a variable-frequency motor. The test bed of AMT shifting durability not only can satisfy functional requirements and truly simulate the AMT shifting process of a whole car, but also has simple mechanical structure, easy assembly and disassembly, easy adjustment, low production and maintenance costs, safety and reliability, and can satisfy the long-term frequent testing requirement of the gear box.

Description

technical field [0001] The invention relates to an automobile test device, more specifically to a test bench mechanical structure for realizing the durability performance test of an AMT (Automated Mechanical Transmission, electronically controlled mechanical automatic transmission) synchronizer. Background technique [0002] Automobile mechanical automatic transmission AMT is an electronically controlled mechanical transmission. It is based on the MT mechanical transmission, canceling the shift handle and clutch pedal, and adding the ASCS automatic shift control system. ASCS is composed of actuators controlled by microcontrollers, and uses electronically controlled hydraulic (pneumatic) or motor mechanisms instead of manpower to control clutch and gear selection mechanisms, so as to realize the automatic transmission function of automobiles. Because of its automatic shift function, AMT can greatly improve the service life of clutches and synchronizers and driving safety, and...

AI Technical Summary

Problems solved by technology

However, the existing structural form of the AMT shift durability test bench has problems including: relatively single function, insufficient flexibility in use, simulation inertia of the test bench cannot be changed or is difficult to change, complex mechanical structure, difficult maintenance, and inconvenient The overall layout, high cost, many components, and low system reliability cannot meet the needs of long-term frequent tests of the transmission

The isolation between the test and the operator is not realized, and the safety is not high

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