Slope Starting Control of Off-Road Vehicle with 32-Speed Binary Logic Automatic Transmission China North Vehicle Research Institute

Format:

Book

Conference/Event

Author/Creator:

Wang, Ye, author.

Contributor:

Liang, Weizhi

Yang, Lili

Zeng, Xiaohua

Conference Name:

Automotive Technical Papers (2022-01-01 : Warrendale, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

Taking an off-road vehicle equipped with 32-speed binary logic automatic transmission (AT) as the research object, the slope starting control research is carried out. The slope starting process is divided into the overcoming resistance stage, the sliding friction stage, and the synchronization stage. The control strategies for each stage are designed respectively. Focusing on the control of the sliding friction stage, the equivalent two-speed model of the starting clutch is established, which realizes the calculation of the speed difference and the slip rate between the driving and driven ends of the starting clutch. Furthermore, the slope starting control strategy based on the proportional-integral-derivative (PID) control of the clutch slip rate is designed. Through the simulation tests of the vehicle starting at different slopes, the correctness of the slope starting control strategy has been verified by MATLAB/Simulink. The strategy proposed in this paper shortens the slope starting time and reduces the starting jerk and the sliding power of the off-road vehicle, which is of great significance to the research on the slope starting control of the multi-gear AT with a small gear ratio

Notes:

Vendor supplied data

Publisher Number:

2022-01-5001

Access Restriction:

Restricted for use by site license