Title:
STEERING CONTROL METHOD AND SYSTEM FOR OVERHEAD TRANSPORT VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/165132
Kind Code:
A1
Abstract:
A steering control method and system for an overhead transport vehicle, which are applied to the technical field of semiconductor wafer manufacturing devices. The steering control method for an overhead transport vehicle comprises: when steering control is required, first applying a first drive voltage (U1) to a rotating electromagnet (13) which is used for steering control guidance, and driving, by the rotating electromagnet (13), a guide wheel (11) to move on a slide rail (17), so as to cooperate with an overhead rail (2) to perform steering guidance; and when the guide wheel (11) moves on the slide rail (17) to a first designated position, switching to apply a second drive voltage (U2) to the rotating electromagnet (13), and after the guide wheel (11) moves on the slide rail (17) to a second designated position, continuing to apply a third drive voltage (U3) to the rotating electromagnet (13), and then powering same off. Different drive voltages are applied to a rotating electromagnet (13), such that the rotating electromagnet (13) is in different operation states during steering control.
Inventors:
DU BAOBAO (CN)
MIAO FENG (CN)
MIAO FENG (CN)
Application Number:
PCT/CN2022/123430
Publication Date:
September 07, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
MEETFUTURE TECH SHANGHAI CO LTD (CN)
International Classes:
B61B12/10; B61B12/02
Foreign References:
| CN114261412A | 2022-04-01 | |||
| CN107139941A | 2017-09-08 | |||
| CN110682925A | 2020-01-14 | |||
| CN110682924A | 2020-01-14 | |||
| US5794535A | 1998-08-18 |
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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