Vertias Dgc Inc.

Darin R Silvernagle

Jason Jurok

Stuart W Olsen

A vehicle control unit is disclosed which can be coupled between a tachometer sensor and an electronic ignition system on a vehicle. The unit is also coupled to a speedometer sensor to measure the vehicle's speed. The vehicle control unit limits the vehicle speed by monitoring the tachometer signal from the tachometer sensor and passing the tachometer signal to the ignition system if the engine speed is within predetermined limits. The tachometer signal is a pulse train which is used by the electronic ignition system to determine ignition timing. The vehicle control unit limits both vehicle speed and engine speed by disconnecting pulses from the tachometer sensor and generating time-delayed pulses of its own to delay the combustion of fuel until after the instance of maximum fuel compression, thereby reducing engine power when the vehicle or engine speeds exceed predetermined limits.

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Balzac, Canada

Darin R Silvernagle