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Double layer control for AMT clutch in commercial vehicle starting: design and experiment

2019; University of Ljubljana; Volume: 65; Issue: 9 Linguagem: Inglês

10.5545/sv-jme.2019.6144

2536-3948

Min Song, Hongliang Wang, Haiou Liu, P Peng, Xianhui Wang, Dawei Pi, Yang Chen, Gang He,

Fuel Cells and Related Materials

Engagement control of an automatic mechanical transmission clutch during vehicle start-up has important influences on the safety, comfort, service life, energy consumption, and emissions of the vehicle.However, all existing control strategies use single-layer control, which leads to poor temperature adaptability.This paper develops a double-layer control strategy based on an automatic actuator to improve vehicle start-up performance.The governing characteristics of a diesel engine with a variable-speed governor are studied.The working principles and a model of the automatic actuator are described.A simulation of vehicle start-up is constructed and tested.Finally, the double-layer control strategy is verified in an experimental vehicle.The experimental and simulation results show that the double-layer control strategy provides shorter start times, less jerking, and lower friction, thereby demonstrating its effectiveness and practicability.