Battery-powered electric vehicle d.c. motor control

Details Battery-powered electric vehicle d.c. motor control Battery-powered electric vehicle d.c. motor control

1981-09-22

1983-10-18

Dobeck, B.

Electricity: motive power systems

Battery-fed motor systems

318362, 318370, B60K 4100

Patent

active

044108427

ABSTRACT:
A battery powered electric vehicle d.c. motor control includes a first potentiometer actuable by an accelerator pedal and a second potentiometer actuable by a brake pedal. The motor current is controlled in accordance with the signals at the sliders of these potentiometers and contactors determine the connection mode of the motor under the control of a comparator which is sensitive to the signal at the slider of the first potentiometer only. This causes braking mode to be selected except when the accelerator pedal is depressed. A resistor is connected in series with the second potentiometer to ensure that a minimum braking demand signal is always present, but means is provided for cancelling this minimum braking demand signal in certain vehicle operating conditions and further means is connected to the comparator for overridingly selecting motoring mode in these conditions.

REFERENCES:
patent: 4351405 (1982-09-01), Fields et al.

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