Prime-mover dynamo plants – Electric control – Traction
Patent
1978-07-24
1980-07-08
Dobeck, B.
Prime-mover dynamo plants
Electric control
Traction
318685, 290 16, 180 65R, B60L 1102
Patent
active
042119308
ABSTRACT:
A constant-speed continuously-running low-powered diesel engine or turbine drives a two-phase alternator, the output from which, for direct drive, flows to the stator pole piece windings of four independently-rotating stepping motors operating synchronously with the alternator. Each stepping motor is connected to a traction wheel of a motor vehicle, thereby propelled at a limited maximum speed sufficiently to overcome normal wind resistance over a level road. In starting, during acceleration, and for propulsion at higher speeds, direct current from a storage battery is caused to pulsate and is added to the current from the alternator to the stepping motors. A control circuit selectively controls the frequency of a variable frequency generator electrically connected to the pulse-responsive electrical power system to vary the frequency of the current supplied to the stepping motors and thus vary the vehicle speed. During idling, the alternating current from the alternator is rectified and recharges the battery. During braking, the consequent driving of the stepping motors causes them to generate alternating current which is rectified and returned to the battery. By varying the frequencies of the current delivered to the right side motors as compared with those delivered to the left side motors and vice versa, in response to the turning of the steering wheel in rounding a curve in the road, a differential action is obtained.
REFERENCES:
patent: 3525874 (1970-08-01), Toy
patent: 3789281 (1974-01-01), Shibata
patent: 3792327 (1974-02-01), Waldorf
patent: 4119861 (1978-10-01), Gocho
Bugbee Willis
Dobeck B.
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