Title:
CONTROL METHOD AND SYSTEM FOR POWER MATCHING OF CRANE, AND CRANE
Document Type and Number:
WIPO Patent Application WO/2021/128628
Kind Code:
A1
Abstract:
The present disclosure relates to a control method and system for power matching of a crane, and a crane. The control method comprises: outputting, according to an angle of an operating handle, a control current which is proportional to the angle of the operating handle, so as to control the openness of a multi-way valve; calculating the required power of a hydraulic pump according to the control current, the position of an accelerator pedal, and an outlet pressure of the hydraulic pump; according to a preset optimal working curve of an engine, obtaining an optimal rotation speed, corresponding to the required power, of the engine, so as to minimize the oil consumption of the engine; and controlling the engine to operate at the optimal rotation speed.
Inventors:
HU XIAODONG (CN)
YUAN CONGLIN (CN)
JIAO GUOWANG (CN)
YUAN CONGLIN (CN)
JIAO GUOWANG (CN)
Application Number:
PCT/CN2020/081972
Publication Date:
July 01, 2021
Filing Date:
March 30, 2020
Export Citation:
Assignee:
XUZHOU HEAVY MACHINERY CO LTD (CN)
International Classes:
F02D31/00; B66C13/20; F02D29/04
Foreign References:
| CN110905674A | 2020-03-24 | |||
| CN109437021A | 2019-03-08 | |||
| CN103925089A | 2014-07-16 | |||
| CN103758999A | 2014-04-30 | |||
| CN103552929A | 2014-02-05 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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