Gm Global Technolgoy Operations, Inc.

Dimitri Karatsinides

Douglas R Verner

Timothy P Philippart

Timothy Karnjate

A method of determining a sliding camshaft actuator pin position based on engine crankshaft angle includes commanding a sliding camshaft actuator to perform a valve step shift, and monitoring an actuator's pin position during the valve step shift command. At least one crank angle is measured when the actuator pin position reaches or exceeds at least one predetermined pin position threshold and at least one remedial action is performed when the actuator pin position does not correlate to the at least one measured crank angle.

Determining sliding camshaft actuator pin position based on engine crankshaft angle

A pedal system for a vehicle is disclosed. The pedal system includes an accelerator pedal, a sensor, a sensor detection circuit, and a controller. The pedal has a footpad, and the pedal moves in response to user actuation of the footpad. The sensor, which is coupled to or integrated into the footpad, has a first state when the footpad is actuated and a second state when the footpad is not actuated. The sensor is independent of and distinct from any physical position sensors of the pedal. The detection circuit, which is electrically coupled to the sensor, can distinguish between the first state and the second state. The controller, which is coupled to the sensor detection circuit, controls operation of the vehicle in a manner that is influenced by the first state or the second state.

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Milford, MI, United States of America

Dimitri Karatsinides