Abstract: A stop/start engine control for a road vehicle has a relay with its winding in series with a driver operable stop switch and an accelerator pedal switch. The relay contact is connected to provide latching action which can be broken by opening the accelerator pedal switch. In the reset position of this relay contact, a clutch pedal operated switch controls another relay operation of which is inhibited when the engine is running. This other relay controls the engine starter motor control system. Thus, when required the engine can be stopped by closing the driver operable switch while the accelerator pedal is closed. The engine can be restarted by first pressing the accelerator pedal to reset the first-mentioned relay, and then pressing the clutch pedal.

Abstract: A starter motor of the pre-engaged type has a stator, a rotor, a rotor shaft and a pinion assembly mounted on the rotor shaft for rotation therewith and axial movement relative thereto into and out of an operative position. A solenoid is mounted in a casing of the motor and includes a coil and a plunger assembly. The plunger assembly includes a spring biased plunger carrying a plate having a slot therein. A nylon moulding is mounted in the slot and biased by a spring against an end of the slot remote from the plunger. The nylon moulding itself has a pair of slots therein which receive respective ends of a bifurcated lever. The lever is pivoted intermediate its ends and is provided with a yoke connection with the pinion assembly. The bifurcated form of the lever and the slots in the nylon moulding reduce wear of the lever in service.