Electrically assisted pedal-propelled vehicles

Details Electrically assisted pedal-propelled vehicles Electrically assisted pedal-propelled vehicles

B - Operations, Transporting

60

L

342/15, 342/34

B60L 11/18 (2006.01) B62M 6/45 (2010.01) B62M 6/70 (2010.01) B62M 6/90 (2010.01)

Patent

CA 1078944

ABSTRACT OF DISCLOSURE An electrically assisted pedal powered vehicle has a chain drive to a freewheel sprocket and a motor can apply power to the chain when forward rotation is imparted to the sprocket by the chain drain. Two switches are actuable by the sprocket and a retriggerable monostable circuit is connected to provide a pulse output when the switches are operated in one order, but not when they are operated in the opposite order. These pulses charge a capacitor which, when charged switches on a transistor circuit which drives a relay controlling the motor current.

256020

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