Control apparatus for electric motor vehicles

Details Control apparatus for electric motor vehicles Control apparatus for electric motor vehicles

1978-04-19

1980-04-22

Smith, Jr., David

Electricity: motive power systems

Battery-fed motor systems

318341, 318457, 318373, H02P 516

Patent

active

041997115

ABSTRACT:
A control apparatus for an electric motor vehicle includes a control system to increase the duty cycle of a chopper circuit driving an electric drive motor of the vehicle when a spontaneous backward movement takes place upon starting of the vehicle at an uphill gradient, thereby to increase the armature and field current of the drive motor and hence the counter current braking effort or so-called plugging effort. The control apparatus assures a reliable starting of the vehicle even at an uphill gradient road.

REFERENCES:
patent: 3630304 (1971-12-01), Sahinkaya
patent: 3828235 (1974-08-01), Price et al.
patent: 4124088 (1978-11-01), Kuriyama

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