Continuous field control of series wound motors

Details Continuous field control of series wound motors Continuous field control of series wound motors

1986-01-15

1988-03-08

Ro, Bentsu

Electricity: motive power systems

Braking

Dynamic braking

318139, 318363, 318370, 318373, H02P 314

Patent

active

047301511

ABSTRACT:
A method for operating an electronic control system for an operator controlled, electrically driven vehicle. The vehicle being powered by a direct current electric traction motor. The electronic control system includes a power source, a variable mark-space ratio power regulator responsive to a motor current command signal developed in response to the position of an accelerator, a direction selection means for providing signals indicative of the direction of motion of the vehicle, and a braking signal responsive to brake position. The electronic control system implements operation of the motor automatically in a propulsion mode, a regenerative mode, and a plug mode. The propulsion mode is either a series connected mode or a separately excited mode. The regenerative mode simulates the retarding effects of an internal combustion engine driven vehicle, while recover the kinetic energy of the vehicle by the generation of current to recharge the power source. The regenerative mode includes a regenertive coast mode and a regenerative brake mode. The plug mode provides a greater retarding force than the regenerative mode. The plug mode includes a plug coast mode and a plug brake mode.

REFERENCES:
patent: 3755724 (1973-08-01), Anderson
patent: 3826959 (1974-07-01), Anderson
patent: 4124812 (1978-11-01), Naito et al.
patent: 4388573 (1983-06-01), Horiuchi et al.
patent: 4423363 (1983-12-01), Clark et al.
patent: 4454503 (1984-06-01), Konard
patent: 4518902 (1985-05-01), Melocik et al.

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