The invention relates to the technical field of new energy vehicles, and provides a braking energy recovery method based on braking consciousness recognition, which comprises the following steps: acquiring basic parameter information of a vehicle, the basic parameter information comprising the position of a brake pedal of the vehicle, the running speed of the vehicle and the SOC value of a battery; constructing a longitudinal dynamic model according to the basic parameter information, and performing longitudinal dynamic simulation on the longitudinal dynamic model through the vehicle; designing a fuzzy controller, wherein the fuzzy controller comprises braking consciousness identification fuzzy control and braking energy recovery proportion fuzzy control; formulating a front and rear axle braking force distribution strategy according to the fuzzy controller; building a first simulation model according to a front and rear axle braking force distribution strategy, and performing joint simulation with the longitudinal dynamic model; and braking energy recovery is conducted on the vehicle according to the simulation result. According to the invention, the recovery efficiency of braking energy and the endurance mileage can be improved on the premise of ensuring the stable and safe running of the vehicle.
本发明设计新能源汽车技术领域,提供一种基于制动意识识别的制动能量回收方法,包括以下步骤:获取车辆的基本参数信息,基本参数信息包括车辆的刹车踏板位置和车辆的行驶速度、电池SOC值;根据基本参数信息构建纵向动力学模型,并通过车辆对纵向动力学模型进行纵向动力学仿真;设计模糊控制器,模糊控制器包括制动意识识别模糊控制和制动能量回收比例模糊控制;根据模糊控制器制定前后轴制动力分配策略;根据前后轴制动力分配策略搭建第一仿真模型,并与纵向动力学模型进行联合仿真;根据仿真结果对车辆进行制动能量回收。本发明能够在保证车辆行驶稳定和安全的前提下提高制动能量的回收效率和续航里程。
Braking energy recovery method and system based on braking consciousness recognition
基于制动意识识别的制动能量回收方法和系统
2024-09-13
Patent
Electronic Resource
Chinese
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