Ford Motor Company Limited

James B Maurer

Michael Damian Czekala

Charles J DeBiasi

Larry Allen Hardy

Viren B Merchant

Marc G Mrjoian

A variable cam phase timing system in which there is one crankshaft sensor, and one camshaft sensor per independently phase shiftable camshaft which can be used for controlling the cam phase shifting, sequential fuel control, and also spark timing during both start-up and during run. In addition, the system can control spark timing, without phase shifting, should the crankshaft sensor fail.

Multiple functions cam sensing

This invention includes a method and apparatus for starting an internal combustion engine with a reduced starting time. That is, there is a reduced delay before the first combustion event occurs in the engine. Only a single engine position sensor is used. The method includes injecting fuel into a cylinder before true engine position is determined and applying an ignition pulse to the cylinder and firing the ignition coil after fuel has been injected into the cylinder. Advantageously, injecting fuel for the cylinder is done after determining the engine is turning and determining the engine has a rotational rate below a predetermined parameter.

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Farmington Hills, MI, United States of America

James B Maurer