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1. WO2020134621 - AUTOMOBILE ELECTRO-HYDRAULIC INTELLIGENT STEERING SYSTEM AND MULTI-OBJECTIVE OPTIMIZATION METHOD THEREFOR

Publication Number WO/2020/134621
Publication Date 02.07.2020
International Application No. PCT/CN2019/116039
International Filing Date 06.11.2019
IPC
B62D 5/04 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 5/06 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
06fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
B62D 3/12 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
3Steering gears
02mechanical
12of rack-and-pinion type
B62D 6/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
6Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
B62D 137/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
137Conditions not specified in groups B62D101/-B62D135/87
CPC
B62D 3/12
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
3Steering gears
02mechanical
12of rack-and-pinion type
B62D 5/04
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
04electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
B62D 5/06
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
06fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
B62D 6/00
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
6Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
Applicants
  • 南京航空航天大学 NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS [CN]/[CN]
Inventors
  • 周小川 ZHOU, Xiaochuan
  • 赵万忠 ZHAO, Wanzhong
  • 汪桉旭 WANG, Anxu
  • 栾众楷 LUAN, Zhongkai
  • 王春燕 WANG, Chunyan
Agents
  • 江苏圣典律师事务所 JIANGSU SUNDY LAW FIRM
Priority Data
201811579261.824.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) AUTOMOBILE ELECTRO-HYDRAULIC INTELLIGENT STEERING SYSTEM AND MULTI-OBJECTIVE OPTIMIZATION METHOD THEREFOR
(FR) SYSTÈME DE DIRECTION INTELLIGENT ÉLECTRO-HYDRAULIQUE DE VÉHICULE AUTOMOBILE ET PROCÉDÉ D'OPTIMISATION MULTI-OBJECTIF ASSOCIÉ
(ZH) 一种汽车电液智能转向系统及其多目标优化方法
Abstract
(EN)
An automobile electro-hydraulic intelligent steering system and a multi-objective optimization method therefor, the system comprising a mechanical steering module, an electric power assist module, an electro-hydraulic power assist module, and a control module. The system may intelligently select the proportions by which the electric power assist module and the electro-hydraulic power assist module participate in steering power assist. For the complex coupling relationship of electro-mechanical fluid in the system, a multi-objective optimization method is proposed. By means of parameter coupling analysis, key design variables that have a relatively large impact on system performance are selected, and a shared niche technology-based multi-objective particle swarm algorithm is used for optimization to obtain optimal design parameters, achieve the optimal performance of steering road feel, steering energy consumption and steering assistance, and improve the overall performance of the steering system.
(FR)
La présente invention concerne un système de direction intelligent électro-hydraulique de véhicule automobile et un procédé d'optimisation multi-objectif associé, le système comprenant un module de direction mécanique, un module d'assistance électrique, un module d'assistance électro-hydraulique et un module de commande. Le système peut sélectionner de manière intelligente les proportions par lesquelles le module d'assistance électrique et le module d'assistance électro-hydraulique participent à la direction assistée. Pour la relation de couplage complexe de fluide électro-mécanique dans le système, un procédé d'optimisation multi-objectif est proposé. Au moyen d'une analyse de couplage de paramètres, des variables de conception clé qui présentent un impact relativement important sur la performance du système sont sélectionnées, et un algorithme d'essaim de particules multi-objectif reposant sur une technologie de niche partagée est utilisé pour une optimisation pour obtenir des paramètres de conception optimaux, pour obtenir les performances optimales de perception de route de la direction, de la consommation d'énergie de la direction et de l'assistance de la direction et pour améliorer les performances globales du système de direction.
(ZH)
一种汽车电液智能转向系统及其多目标优化方法,该系统包括机械转向模块、电动助力模块、电动液压助力模块以及控制模块;系统能够智能地选择电动助力模块和电动液压助力模块参与转向助力的比例;针对该系统存在的机电液复杂耦合关系,提出一种多目标优化方法,通过参数耦合分析,选择出对系统性能影响较大的关键设计变量,采用基于共享小生境技术的多目标粒子群算法进行优化,获得最佳设计参数,实现转向路感、转向能耗和转向助力的性能最优,提高转向系统整体性能。
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