Title:
MONITOR AND OPTIMIZATION METHOD FOR PERFORMANCE OF ELECTRO-HYDRAULIC INTELLIGENT STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/215659
Kind Code:
A1
Abstract:
A monitor and optimization method for the performance of an electro-hydraulic intelligent steering system. A vehicle dynamics parameter signal, a surrounding vehicle and road environment sensing signal, and a driver input behavior signal which are collected are processed by means of an information unit; an information processing unit transmits an analysis result to a steering system performance monitor unit; the steering system performance monitor unit comprises a steering road sensing evaluation subsystem, a steering sensitivity evaluation subsystem, and a steering energy consumption evaluation subsystem; the current control signal can be subjected to online optimization computation according to an evaluation equation, thereby obtaining an optimal steering behavior, and then the optimized control signal is input into an execution unit, thereby implementing real-time detection and dynamic optimization for the steering performance of the system under man-machine driving. According to the present invention, the problems that during straight driving of an electro-hydraulic intelligent steering system of a middle-large-sized commercial vehicle, dead zone shake easily occurs to a steering wheel, and during curve driving, steering overshoot easily occurs are solved. The present invention has a wide market application prospect.
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Inventors:
ZHAO WANZHONG (CN)
LUAN ZHONGKAI (CN)
WANG CHUNYAN (CN)
ZHOU XIAOCHUAN (CN)
LUAN ZHONGKAI (CN)
WANG CHUNYAN (CN)
ZHOU XIAOCHUAN (CN)
Application Number:
PCT/CN2019/116038
Publication Date:
October 29, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
B62D15/02
Foreign References:
| CN106585714A | 2017-04-26 | |||
| CN107600173A | 2018-01-19 | |||
| CN110386191A | 2019-10-29 | |||
| CN103019822A | 2013-04-03 | |||
| CN104176115A | 2014-12-03 | |||
| CN105151117A | 2015-12-16 | |||
| CN108984917A | 2018-12-11 | |||
| US20140214742A1 | 2014-07-31 |
Attorney, Agent or Firm:
JIANGSU SUNDY LAW FIRM (CN)
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