Title:
ELECTRO-HYDRAULIC INTEGRATED STEERING SYSTEM AND MULTI-PARAMETER COUPLING OPTIMIZATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/056751
Kind Code:
A1
Abstract:
An electro-hydraulic integrated steering system and a multi-parameter coupling optimization method thereof. The electro-hydraulic integrated steering system comprises a mechanical transmission module, an electric power assisted module, a hydraulic power assisted module, and a control module. A design scheme in which the electric power assisted mechanism is integrated at the bottom of an original hydraulic system steering gear, an original worm gear and worm speed reducer is replaced with a planetary gear speed reducer (18), and a mechanical rotary valve structure in an original hydraulic power assisted mechanism is reserved is adopted. On one hand, the electric and hydraulic mechanisms are highly integrated, and energy consumption can be reduced by the cooperative operation; on the other hand, the road surface information can be fed back in real time, thereby providing clear road feel for a driver. In addition, the system further has the advantages that a plurality of execution mechanisms are redundant with each other, the planetary gear speed reducer (18) eliminates the hidden danger of system jamming, low failure rate of the mechanical rotary valve structure is reserved, etc., and multi-parameter coupling optimization is performed on the system, so that the system economy can be maximized while the cost, reliability and road feel are guaranteed.
Inventors:
ZHANG ZIYU (CN)
CHU YUKAI (CN)
ZHAO WANZHONG (CN)
WANG CHUNYAN (CN)
ZHOU XIAOCHUAN (CN)
LUAN ZHONGKAI (CN)
CHU YUKAI (CN)
ZHAO WANZHONG (CN)
WANG CHUNYAN (CN)
ZHOU XIAOCHUAN (CN)
LUAN ZHONGKAI (CN)
Application Number:
PCT/CN2022/092942
Publication Date:
April 13, 2023
Filing Date:
May 16, 2022
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
NANJING TIANHANG INTELLIGENT EQUIPMENT RES INSTITUTE CO LTD (CN)
NANJING TIANHANG INTELLIGENT EQUIPMENT RES INSTITUTE CO LTD (CN)
International Classes:
B62D5/06; B62D3/02; B62D5/04; B62D6/00
Foreign References:
| CN113895511A | 2022-01-07 | |||
| CN106800040A | 2017-06-06 | |||
| CN113212546A | 2021-08-06 | |||
| DE102007012392A1 | 2007-10-11 | |||
| CN110949496A | 2020-04-03 | |||
| CN106741132A | 2017-05-31 |
Other References:
栾众楷 (LUAN, ZHONGKAI): "电液复合转向系统性能优化及转向感觉一致性控制研究 (Research on Consistency Control and System Parameter Optimization of Electro-hydraulic Hybrid Steering System)", 中国优秀博硕士学位论文全文数据库 (硕士) 工程科技II辑 (CHINESE SELECTED DOCTORAL DISSERTATIONS AND MASTER'S THESES FULL-TEXT DATABASES (MASTER), ENGINEERING SCIENCE & TECHNOLOGY II), no. 2, 15 February 2020 (2020-02-15), ISSN: 1674-0246
Attorney, Agent or Firm:
BEIJING HESHINIP INTELLECTUAL PROPERTY OFFICE (CN)
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