Optimal torque distribution method based on distributed electric drive vehicle
A technology of optimal torque and distribution method, applied in electric vehicles, control drives, vehicle components, etc., can solve problems such as prolonging simulation time, increasing calculation burden, and requiring high objective function gradient and Hessian matrix
Active Publication Date: 2019-05-21
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AI-Extracted Technical Summary
Problems solved by technology
The invention relates to an optimal torque distribution method based on a distributed electric drive vehicle. The torques of four drive wheels are reasonably distributed, and meanwhile the drive system efficiency and driving safety of the distributed electric drive vehicle are improved. The torque distribution method comprises the following steps of (1) adopting a response surface analysis methodfor conducting regression analysis on test data of a hub motor to obtain a drive motor efficiency function; (2) based on a demand torque value of a distributed electric drive system, establishing objective functions which characterize the efficiency optimization of the drive system and the driving safety optimization of the vehicle respectively; adopting a linear weighting method of a self-adaptive weight coefficient for converting solutions of the two objective functions into a multi-objective optimization problem under constraint conditions; (3) integrating the respective advantages of a genetic algorithm and a taboo search algorithm to put forward a hybrid genetic taboo search algorithm (HGTSA) for solving the multi-objective optimization problem, and obtaining the optimal torque distribution of the distributed electric drive system accordingly.
Speed controllerElectric energy management +1
Driving safetyOptimization problem +16
- Experimental program(1)
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