The invention relates to the technical field of new energy vehicle power systems, and particularly discloses a distributed new energy vehicle driving and braking coordination control system which comprises an electronic differential control strategy, a basic torque calculation strategy, a vehicle torque distribution strategy, a vehicle torque limiting strategy and a mechanical braking control strategy. The driving and braking coordination control system is built through various strategies; the electronic differential control strategy comprises a driving force distribution layer at the upper layer and a slip rate control layer based on a logic threshold at the lower layer; according to the basic torque calculation strategy, a basic torque value of the whole vehicle is calculated according to driving working conditions, and the driving working conditions include but are not limited to an acceleration working condition, a crawling working condition, a braking working condition, a sliding working condition and an anti-slip working condition; the invention provides a multi-axle vehicle hub motor driving, hydraulic braking and EPB parking driving and braking coordination control scheme, solves a driving and braking torque distribution coordination control strategy, and has important guiding significance for driving and braking coordination control of a multi-axle hub motor driving type vehicle.
本发明涉及新能源车辆动力系统技术领域,具体公开了一种分布式新能源车辆驱制动协调控制系统,包括电子差速控制策略、基础扭矩计算策略、车辆扭矩分配策略、车辆扭矩限制策略和机械制动控制策略,多种策略来共同实现驱制动协调控制系统的搭建工作;电子差速控制策略包括上层的驱动力分配层和下层的基于逻辑门限的滑移率控制层;基础扭矩计算策略为整车根据驾驶工况计算基础扭矩值,驾驶工况包括但不限于加速工况、蠕行工况、制动工况、滑行工况和防溜坡工况;本发明提出多轴车辆轮毂电机驱动+液压制动+EPB驻车的驱制动协调控制方案,解决驱制动转矩分配协调控制策略,对于多轴轮毂电机驱动形式车辆的驱制动协同控制有着重要的指导意义。
Distributed new energy vehicle driving and braking coordination control system
一种分布式新能源车辆驱制动协调控制系统
2024-09-17
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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