Circuitry for recovering electrical energy with an electric vehi

Details Circuitry for recovering electrical energy with an electric vehi Circuitry for recovering electrical energy with an electric vehi

1980-04-11

1982-05-18

Hickey, Robert J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

318139, 318376, 320 61, H02J 700, H02P 310, H02P 314

Patent

active

043307426

ABSTRACT:
An electrical drive vehicle with an onboard battery and a D.C. propulsion motor having means for automatically switching the D.C. motor from a series field operation to shunt field operation upon the operator actuating the braking means to convert the kinetic braking energy to electrically energy for charging, via an intermediate storage means, the onboard battery. The switching means is a variable duty cycle transistor switching means controlling the excitation of the D.C. motor in the shunt field mode.

REFERENCES:
patent: 3546548 (1970-12-01), Wouk
patent: 3947744 (1926-03-01), Grace et al.
patent: 4124812 (1978-11-01), Naito et al.

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