A coordinated control of hydraulic hub-motor auxiliary system for heavy truck. (April 2021)

• Record Type: Journal Article
• Authors: Song, D.F.; Yang, D.P.; Zeng, X.H.; Zhang, X.M.; Gao, F.W.
• Is Part Of: Measurement. Volume 175(2021)
• Publication Date: 2021-04
• Subjects: Hydraulic hub-motor auxiliary system -- Coordinated control strategy -- Variable pump -- Slip efficiency -- Feedforward and feedback controller; AWD All-Wheel Drive -- ADRC Active Disturbance Rejection Control -- BPV ByPass Valve -- CVR Control Valve of Right motor -- CVL Control Valve of Left motor -- FPE Free Piston Engine -- FVR Free Wheel Valve of Right motor -- FVL Free Wheel Valve of Left motor -- HHM Hydraulic Hub-Moto -- HVP Hydraulic Variable Pump -- HHMAS Hydraulic Hub-Motor Auxiliary System -- MOT Ministry of Transport of the People's Republic of China -- MPC Model Predictive Control -- PTO Power Take Off -- PWM Pulse Width Modulation -- PID Proportional-Integral-Derivative; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2021.109087
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: A hydraulic hub-motor auxiliary system (HHMAS) is used in the traditional trucks. Based on the HHMAS, a coordinated control algorithm is designed. The designed pump displacement control method is real-time in real vehicle test. HHMAS has a good effect on the control strategy presented in this paper. Abstract: To solve the contradiction between the trafficability and the power of traditional heavy trucks, the study proposes a coordinated control of hydraulic hub-motor auxiliary system for heavy truck to make full use of the coefficient of ground aadhesion and engine power. With hydraulic hub-motor auxiliary system (HHMAS) in the non-drive front wheels, the front wheels drive the truck on bad roads to ensure the trucks tractive capacity and exit on good roads to achieve better transmission efficiency. Based on the HHMAS, a wheel speed coordinated control strategy that considers slip efficiency to make system work effectively is designed. The pump displacement composite control method in the real vehicle is tested, the steady-state error is basically within 0.03. Experimental results show that HHMAS has a good effect on the control strategy presented. Hence, the study on HHMAS is a valuable to hydraulic hybrid application.