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1. CN107571909 - Method and system for safe limiting of torque overlay intervention in a power assisted steering system of a road vehicle

Office Chine
Numéro de la demande 201710500589.5
Date de la demande 27.06.2017
Numéro de publication 107571909
Date de publication 12.01.2018
Type de publication A
CIB
B62D 5/04
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
62VÉHICULES TERRESTRES SE DÉPLAÇANT AUTREMENT QUE SUR RAILS
DVÉHICULES À MOTEURS; REMORQUES
5Direction assistée ou à relais de puissance
04électrique, p.ex. au moyen d'un servomoteur relié au boîtier de direction ou faisant partie de celui-ci
CPC
B62D 5/0463
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
0457characterised by control features of the drive means as such
046Controlling the motor
0463for generating assisting torque
B62D 15/025
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
15Steering not otherwise provided for
02Steering position indicators ; ; Steering position determination; Steering aids
025Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation
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 5/00
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
5Power-assisted or power-driven steering
B62D 5/0457
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
0457characterised by control features of the drive means as such
B62D 6/10
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
08responsive only to ; driver; input torque
10characterised by means for sensing ; or determining; torque
Déposants VOLVO CAR CORPORATION
Inventeurs LARS JOHANNESSON MARDH
MATS HOEWING
MALIN HAEGLUND
JONATAN SILVLIN
Données relatives à la priorité 16177726.3 04.07.2016 EP
Titre
(EN) Method and system for safe limiting of torque overlay intervention in a power assisted steering system of a road vehicle
(ZH) 用于道路车辆的动力辅助转向系统中扭矩叠加干预的安全限制的方法和系统
Abrégé
(EN)
Disclosed herein is a method and arrangement for safe limiting of torque overlay intervention in a power assisted steering system of a road vehicle having an autonomous steering function arranged to selectively apply a steering wheel overlay torque to a normal steering assistance torque. A wheel self-aligning torque ( fR ) of the road vehicle (1) is modelled for a current vehicle velocity ( v ) and pinion angle ( [delta]v ) . A steering wheel overlay torque request ( [tau]R ) is received. Based on the received steering wheel overlay torque request ( [tau]R ) is provided a steering wheel overlay torque ( [tau]A ) in hands-off applications limited to a safe set interval that is symmetrical around the modeled wheel self-aligning torque ( fR ).

(ZH)
此处公开了一种用于具有被设置为选择性地向标准转向辅助扭矩施加方向盘叠加扭矩的自主转向功能的道路车辆的动力辅助转向系统中的扭矩叠加干预的安全限制的设备。对用于当前车辆速度(v)和小齿轮角(δv)的道路车辆(1)的车轮自回正扭矩(fR)进行建模。接收方向盘叠加扭矩请求(τR)。基于所接收的方向盘叠加扭矩请求(τR)提供限制于无需用手应用中的围绕所建模的车轮自回正扭矩(fR)对称的安全设定间隔的方向盘叠加扭矩(τA)。

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