ZHAO Minghui, ZHENG Haoyuan, LIU Shuaishuai, et al. Driving Stability Control for Corner Module Architecture Special Vehicle to Escape from Pit[J]. Acta Armamentarii, 2026, 47(4): 250574.
DOI:
ZHAO Minghui, ZHENG Haoyuan, LIU Shuaishuai, et al. Driving Stability Control for Corner Module Architecture Special Vehicle to Escape from Pit[J]. Acta Armamentarii, 2026, 47(4): 250574. DOI: 10.12382/bgxb.2025.0574.
Driving Stability Control for Corner Module Architecture Special Vehicle to Escape from Pit
A special vehicle with corner module architecture has superior dynamic control performance. To enhance the capabilities of escape from pit and stability control of the special vehicle when trapped in a pit
a coordinated motion attitude control method is proposed. The process of front-wheels going out of pit is designed. A model of the relationship between vehicle body attitude and center of gravity position as well as a vertical load model for each wheel are established based on the analysis of tire-ground mechanics. The relationship among the height of escape from pit
the road adhesion coefficient at pit bottom and the loading coefficient is revealed. A 14-degrees-of-freedom vehicle dynamics model is established
and a feedforward controller for vehicle height adjustment and a high-complexity linear quadratic Gaussian stability feedback controller are designed. The accuracy of the ball screw suspension model is verified through the corner module prototype test
and a hardware-in-the-loop test platform is built to compare with the low-complexity linear quadratic Gaussian controller. The research results indicate that the control performance of the proposed controller is significantly improved under the condition of a pit depth of 0.3 m. When the left and right front wheels go out of the pit in sequence
the load peak of the wheel with the maximum peak load decreases by 15% and 9%
respectively
and the maximum values of the vehicle's pitch angle
roll angle and vertical velocity are reduced by 58%
42% and 33%
respectively. This provides a theoretical basis for the special vehicles escaping from pit safely.
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