四轮独立驱动电动汽车驱动控制策略研究

Research on Drive Control Strategy of Four-wheel Independent Drive Electric Vehicle

电动化、智能化是汽车未来的发展趋势,分布式电动汽车近年来发展迅速,四轮独立驱动电动汽车作为其中的一种形式,在很多方面具有有优于传统汽车的控制优势。文章对四轮独立驱动电动汽车的驱动控制策略进行研究,采用神经网络PID控制设计横摆力矩控制器保证汽车的侧向稳定性,以保持车轮的最佳滑移率为目标研究了驱动防滑控制,通过实验验证驱动防滑策略能够有效防止车轮打滑和严重失稳现象。研究表明:该驱动控制策略能够对四轮驱动汽车的驱动力矩进行合理分配,能确保车轮在附着系数不均路面上具有足够的驱动力。

Electricity and intelligence are the future development trends of automobiles.Distributed electric vehicles have developed rapidly in recent years,four-wheel independent drive electric vehicles as one of the forms,have control advantages over traditional vehicles in terms of active safety and energy saving.This paper studies the driving control strategy of four-wheel independent driving electric vehicles.Using neural network PID control to design the yaw moment controller to ensure the lateral stability of the automobile.The drive anti-skid control is studied with the goal of maintaining the optimal slip rate of the wheel.Experiments verify that the drive anti-skid strategy can effectively prevent wheel slip and serious instability.Research shows that this drive control strategy can reasonably distribute the driving torque of four-wheel drive vehicles and ensure that the wheels have sufficient driving force on roads with uneven adhesion coefficients.