The invention discloses an integrated control method for a drive-by-wire chassis of an intelligent networked automobile. The invention aims to provide the integrated control method for the drive-by-wire chassis of the intelligent networked automobile so as to solve the problems of over-high energy consumption, poor operation stability and the like in the prior art. According to the method, based on the motor efficiency MAP of the double executing mechanisms, constraint conditions of electro-hydraulic braking are considered, the lowest energy consumption is used as a control target, and power-assisted distribution calculation of chassis related mechanisms is achieved. According to the method, the power-assisted characteristic curve of the electro-hydraulic composite power-assisted steering system is designed in a low-speed section and a medium-high-speed section, the influence factors of the vehicle speed, the lateral acceleration and the steering wheel hand power are considered, fitting is conducted on the power-assisted characteristic curve through a BP neural network method, the designed power-assisted characteristic curve meets the power-assisted requirement. And the method can be coordinated and matched with an electro-hydraulic braking system, and the driving portability and the control sensitivity are met.
本发明公开了一种一种智能网联汽车线控底盘集成控制方法。本发明的目的在于提供一种智能网联汽车线控底盘集成控制方法,以解决现有技术中存在的能耗过高、操纵稳定性不良等问题。本发明基于双执行机构电机效率MAP图,考虑电液制动的约束条件,以最低能耗为控制目标,实现底盘相关机构助力分配计算。本发明分为低速段、中高速段对电液复合助力转向系统助力特性曲线进行设计,考虑车速、侧向加速度、转向盘手力三方面影响因素,采用BP神经网络的方法对助力特性曲线进行拟合,设计的助力特性曲线满足助力需求,可以与电液制动系统协调匹配驾驶感觉,满足驾驶轻便性和操纵灵敏性。
Integrated control method for drive-by-wire chassis of intelligent networked automobile
一种智能网联汽车线控底盘集成控制方法
2021-12-24
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Drive-by-wire chassis device for intelligent networked automobile
European Patent Office | 2022
|Intelligent automobile drive-by-wire chassis control system
European Patent Office | 2023
|