Regular Article

Power optimization control strategy for dual motor multi-axis drive autonomous vehicles

¹ School of Automobile and Transportation, Guangdong Polytechnic, Foshan 528041, Guangdong Province, PR China
² School of Transportation and Economic Management, Guangdong Communication Polytechnic, Guangzhou 510650, Guangdong Province, PR China

^* Corresponding author: tanzhirong@gdpt.edu.cn

Received: 21 February 2025
Accepted: 21 September 2025

Abstract

Dual motor multi-axle drive vehicles are commonly used in heavy-duty transportation scenarios, with high energy consumption and low range during driving. Improving the efficiency of power system operation and improving energy utilization are important ways to solve the problem within a low range. This article takes dual motor multi-axis drive autonomous vehicles as the research object. Besides, it proposes a dual feedback motor torque distribution optimization model and designs a braking torque distribution strategy that meets the optimal braking energy recovery. The dual feedback motor torque distribution optimization model and the braking torque distribution strategy that meets the optimal braking energy recovery are designed. Driving energy consumption and braking energy recovery are used as evaluation indicators to simulate and analyze the C-WTVC cycle and the CHTC-HT cycle conditions. The results show that the driving energy efficiency has been further improved, and the braking energy recovery efficiency has increased by 10%. Therefore, the optimization strategies for driving torque distribution and braking torque distribution designed in this article can both improve energy utilization efficiency, thereby increasing the driving range of the vehicle.