Title:
AUTOMATIC STEERING SYSTEM AND METHOD FOR AUTOMATIC HARVESTER
Document Type and Number:
WIPO Patent Application WO/2020/206939
Kind Code:
A1
Abstract:
An automatic steering method for an automatic harvester, comprising the steps of: (A) hydraulic oil of a hydraulic pump (60) is outputted to a reversing valve (20); (B) an electrical signal is inputted to a first coil (YV01) or a second coil (YV02) of the reversing valve, and the electrical signal is synchronously inputted to a third coil (YV03) of a hydraulic control apparatus; (C) the hydraulic oil enters a steering cylinder (30) from the reversing valve; (D) the size of the electrical signal inputted to the third coil is controlled, so as to control the pressure difference of the steering cylinder, in order to implement electrodeless control for steering the automatic harvester.
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Inventors:
CHEN RUI (CN)
WANG BO (CN)
WANG QINGQUAN (CN)
WU DI (CN)
YAO YUAN (CN)
FAN SHUN (CN)
ZHANG XIAO (CN)
WANG BO (CN)
WANG QINGQUAN (CN)
WU DI (CN)
YAO YUAN (CN)
FAN SHUN (CN)
ZHANG XIAO (CN)
Application Number:
PCT/CN2019/106976
Publication Date:
October 15, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
FJ DYNAMICS TECH CO LTD (CN)
International Classes:
B62D1/28; A01B69/00
Foreign References:
| CN110203274A | 2019-09-06 | |||
| US5893428A | 1999-04-13 | |||
| US5893428A | 1999-04-13 | |||
| CN108605514A | 2018-10-02 | |||
| CN206723179U | 2017-12-08 | |||
| CN104309683A | 2015-01-28 | |||
| JPH04176777A | 1992-06-24 | |||
| CN106954401A | 2017-07-18 | |||
| CN110304138A | 2019-10-08 |
Attorney, Agent or Firm:
NINGBO RAYMOND IP AGENCY FIRM (CN)
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