Torque Coordination Control Strategy for Dual-Motor Electric Vehicles Considering Load Transfer and Slip Energy Dissipation

2026-99-0709

5/15/2026

Authors
Abstract
Content
To address the issues of significant slip energy dissipation induced by severe tire slip, degradation of vehicle control stability, and insufficient accuracy of vehicle speed tracking under low-adhesion road conditions, a torque coordination control strategy for dual-motor electric vehicles (DM-EVs) considering load transfer and slip energy dissipation is proposed. First, a vehicle dynamics model integrating suspension system dynamics and tire slip characteristics is developed, fully accounting for the influence of front-rear axle load transfer on the tire slip ratio. Next, founded on the energy dissipation mechanism of tire slip, a quantitative model for energy dissipation during tire slip is developed. Finally, a longitudinal coordinated control system for vehicles according to nonlinear model predictive control (NMPC) is introduced. By comprehensively considering the tire slip ratio and vehicle load distribution, multi-objective coordinated optimization of wheel torque is achieved. Simulation results under constant acceleration conditions on low-adhesion roads indicate that significant slip phenomena occurred in the wheels of both the without slip ratio controller and the PID controller, failing to achieve stable vehicle control. Simulation results in virtual traffic scenarios reveal that, compared to the other two controllers, the proposed controller exhibits significant reductions in key performance metrics: the RMS value of total tire slip ratio is reduced by 84.95% and 87.34%, total tire slip energy dissipation is reduced by 94.95% and 96.53%, and total tire wear volume is reduced by 93.78% and 95.71%, respectively. These results demonstrate the performance of the introduced control strategy.
Meta TagsDetails
DOI
https://doi.org/10.4271/2026-99-0709
Citation
Hou, Y., Li, J., and Bai, X., "Torque Coordination Control Strategy for Dual-Motor Electric Vehicles Considering Load Transfer and Slip Energy Dissipation," Interntional Conference on the New Energy and Intelligent Vehicles, Hefei, China, November 2, 2025, https://doi.org/10.4271/2026-99-0709.
Additional Details
Publisher
Published
May 15
Product Code
2026-99-0709
Content Type
Technical Paper
Language
English