The invention discloses a method for calculating a power assist characteristic table of an electric power-assisted steering system and belongs to the technical field of automobile power-assisted steering system control. The invention aims to solve the problem of poor driving feeling of an automobile due to the difficult iterative correction and difficult driving style control of EPS basic power assist characteristic table real vehicle field test. The vehicle chassis dynamics inverse characteristic and the steering system dynamics inverse characteristic are both inherent characteristics of thevehicle. According to the method of the invention, an EPS basic power assist characteristic table is decomposed into a driving style module, a vehicle chassis dynamic inverse characteristic module anda steering system dynamic inverse characteristic module; the three modules have clear physical meanings, so that the calibration of the basic power assist table of the EPS has a theoretical basis, the calibration difficulty and workload of the EPS basic power assist table are reduced, and an EPS development period is shortened. By designing the driving style module, the driving style of the automobile can be directly controlled, the driving feeling of the automobile can be adjusted, the requirements for the driving feeling and assistance are both considered, and the quality of the EPS is improved.
本发明公开了一种电动助力转向系统助力特性表计算方法,属于汽车电动助力转向系统控制技术领域,本发明的目的在于解决EPS基本助力特性表实车场地试验迭代修正困难且难以控制驾驶风格,导致汽车驾驶感觉不好的问题,车辆底盘动力学逆特性和转向系统动力学逆特性均是车辆的固有特性,本发明将EPS基本助力特性表分解为驾驶风格、车辆底盘动力学逆特性和转向系统动力学逆特性三大模块,三大模块均有明确的物理含义,使得EPS基本助力表的标定具有理论依据,降低了EPS基本助力表标定难度与工作量,缩短EPS开发周期。本发明通过设计驾驶风格模块,可以直接控制汽车驾驶风格,调校汽车驾驶感觉,兼顾驾驶感觉与助力的要求,提高EPS的品质。
Method for calculating power assist characteristic table of electric power-assisted steering system
一种电动助力转向系统助力特性表计算方法
2020-09-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Simulation of Straight-Line Type Assist Characteristic of Electric Power-Assisted Steering
SAE Technical Papers | 2004
|Simulation of Straiqht-Line Type Assist Characteristic of Electric Power-Assisted Steering
British Library Conference Proceedings | 2004
|Electric power assist steering
Online Contents | 1996
Electric power assist steering
Tema Archiv | 1996
|