Gm Global Technolgoy Operations, Inc.

Trw Limited

Dale W McKim

Julian R Verdejo

John W Siekkinen

Jeffrey A Sell

Louis A Avallone

Justin Adams

Wenbo Wang

Stephen R W Cooper

Mark D Carr

Edward J Gillis

Wajdi B Hamama

Eric B Ferch

Craig Michael Sawdon

Debbie L Makowske

Michelle R Schaffran

A heating module for an oxygen sensor comprises an estimated mass module, a cumulative mass module, and a temperature control module. The estimated mass module determines an estimated mass of intake air to remove condensation from an exhaust system after startup of an engine. The cumulative mass module determines a cumulative mass of intake air after the engine startup. The temperature control module adjusts a temperature of an oxygen sensor measuring oxygen in the exhaust system to a first predetermined temperature after the engine startup and adjusts the temperature to a second predetermined temperature when the cumulative air mass is greater than the estimated air mass, wherein the second predetermined temperature is greater than the first predetermined temperature.

Oxygen sensor heater control strategy

A control system comprising an ignition fuse diagnostic module that determines a state of an ignition fuse associated with an ignition coil of an engine cylinder, and a fuel control module that selectively operates a fuel injector associated with the engine cylinder based on the state of the ignition fuse. A method comprising determining a state of an ignition fuse associated with an ignition coil of an engine cylinder, and selectively operating a fuel injector associated with the engine cylinder based on the state of the ignition fuse.

Ignition coil module fuse diagnostic

A control system for an oxygen sensor heater is provided. The control system includes a passive heater control module that generates a heater control signal at a first duty cycle and measures a resistance of the oxygen sensor heater. An exhaust gas temperature mapping module maps the resistance to an exhaust gas temperature. An active heater control module generates a heater control signal at a second duty cycle based on the exhaust gas temperature.

Oxygen sensor heater control methods and systems

An apparatus ( ) determines a vehicle occupant location characteristic. The apparatus ( ) includes at least one sensor (e.g., ) for echo ranging at first and second ultrasonic frequencies. A timer function portion ( ) of a microcomputer ( ) determines a time-of-flight for each frequency signal. The microcomputer ( ) determines the occupant location characteristic using at least one of the determined times-of-flight.

Apparatus and method of vehicle occupant sensing using multiple ultrasonic frequencies

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Howell, MI, United States of America

Dale W McKim