The endurance mileage of an electric automobile is still an important factor for limiting the development of the electric automobile, and the invention discloses an energy-saving control method for motion planning of an intelligent driving automobile in order to solve the problems of energy output optimization and efficient energy recovery during braking of the automobile in the driving process. Comprising the steps that a model prediction control module predicts driving information at the next moment by taking safe and stable driving or braking of a vehicle as a control target and taking the maximum acceleration/gravitational acceleration during acceleration and deceleration of the vehicle as a constraint, and transmits the predicted driving information at the next moment to a two-stage dynamic planning module to provide data support for the two-stage dynamic planning module; and the two-stage dynamic planning module is used for obtaining an optimal decision of optimal energy output or recovery according to the SOC of the automobile battery at the current moment, the automobile driving information and the driving information at the next moment predicted by the model prediction control module. According to the method, the driving information of the next moment can be predicted, the optimal decision for obtaining the optimal energy output or recovery is made, the energy utilization rate of the electric vehicle is increased, and the endurance mileage of the electric vehicle is increased.
电动汽车的续航里程仍然是限制其发展的重要因素,为解决汽车在行驶过程中能量输出优化与制动时能量高效回收的问题,本发明公开一种智能驾驶汽车运动规划节能控制方法,包括:模型预测控制模块以车辆安全平稳行驶或制动为控制目标、车辆加速和减速时的最大加速度/重力加速度为约束预测下一时刻行驶信息,并将预测的下一时刻行驶信息传递给两阶段动态规划模块,为其提供数据支撑;两阶段动态规划模块,通过当前时刻的汽车电池SOC、汽车行驶信息和模型预测控制模块预测的下一时刻行驶信息获得最佳能量输出或回收的最优决策。本方法可以预测下一时刻的行驶信息,做出获得最佳能量输出或回收的最优决策,提高电动汽车的能量利用率,提升电动汽车的续航里程。
Intelligent driving automobile motion planning energy-saving control method
一种智能驾驶汽车运动规划节能控制方法
2023-05-09
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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