Optimized Torque Distribution Algorithm to Improve the Energy Efficiency of 4WD Electric Vehicle

2014-01-2374

09/30/2014

Event
SAE 2014 Commercial Vehicle Engineering Congress
Authors Abstract
Content
This paper presents a torque distribution algorithm to improve the energy efficiency of four-wheel-drive (4WD) electric vehicles with PMSM hub motors. In order to optimize the torque distribution method, at first the motor model considering the affect of iron loss and the loss model of multi-motors drive system of 4WD electric vehicle with PMSM hub motors, which operate at straight-line condition, are established. Besides, realize the online identification of motor parameters based on the MARS, which is important for updating the loss model parameters of the motor drive system. By doing this, the ideal torque distribution ratio can be obtained from the loss model in real-time. The simulation result using different distribution algorithms shows that the optimized torque distribution algorithm based on the loss model can be useful for improving the energy efficiency.
Meta TagsDetails
DOI
https://doi.org/10.4271/2014-01-2374
Pages
10
Citation
Li, Y., Zhang, J., Guo, K., and Wu, D., "Optimized Torque Distribution Algorithm to Improve the Energy Efficiency of 4WD Electric Vehicle," SAE Technical Paper 2014-01-2374, 2014, https://doi.org/10.4271/2014-01-2374.
Additional Details
Publisher
Published
Sep 30, 2014
Product Code
2014-01-2374
Content Type
Technical Paper
Language
English