Invention Grant
- Patent Title: Motor control systems
- Patent Title (中): 电机控制系统
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Application No.: US487890Application Date: 1974-07-12
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Publication No.: US4028597APublication Date: 1977-06-07
- Inventor: Michael J. Delaney , Hiram G. Gilbert
- Applicant: Michael J. Delaney , Hiram G. Gilbert
- Applicant Address: NY Greene
- Assignee: The Raymond Corporation
- Current Assignee: The Raymond Corporation
- Current Assignee Address: NY Greene
- Main IPC: B60L15/20
- IPC: B60L15/20 ; H02P3/10 ; H02P5/68 ; H02P7/29 ; H02P3/00
Abstract:
A battery-powered thyristor-controlled lift truck traction motor control system includes simple and economical means for providing plugging torque in a continuous or proportional manner. A dual-motor drive system disclosed allows series motors to be operated in parallel from a single thyristor control system during both acceleration and plugging conditions, and allows the two motors to be operated at widely different speeds without large currents circulating between them.
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