Ford Motor Company Limited

Jaguar Cars Limited

Jeffrey S Arsenault

Mark David McBroom

Karienne Ann Yockey

Martin J Aislabie

Chris George Oehring

A diagnostic system for detecting when one or more temperature sensors as found in motor vehicle climate control systems are invalid. The system works at extreme temperature conditions and functions to distinguish between sensor faults such as open or short circuits and true sensor temperature readings, which could be, misinterpreted as faulty readings. In particular, combinations of ambient temperature sensors, in-car-temperature sensors and evaporator air temperature sensors are tested by the diagnostic algorithm to make such determinations.

Comparing sensor outputs to distinguish between sensor faults and

An air handling system includes at least two doors to control the flow of air to achieve a selected mode. A first door travels through a first path, and a second door travels through a second path which intersects the first path. A first final position is determined for the first door and a second final position is determined for the second door to achieve the selected mode. It is determined whether the two doors will collide when traveling to the respective final door positions and it is determined whether both doors could be closed simultaneously while rotating to the final positions. A relief door is maintained at a partially open position.

Method and apparatus to control air distribution doors in an air

A method and system are provided to control a heated area for a glass surface on a motor vehicle. The method and system sense the ambient temperature, determine whether the vehicle charging system is operating within a first predetermined voltage level, and disable the heated area if the charging system voltage is outside the first predetermined level.

System and method for controlling the operation of a heated wiper area

A method and system for controlling a heating, ventilation and air-conditioning (HVAC) system of a vehicle to prevent fogging of a windshield of the automotive vehicle is provided. The method and system include a determination of whether the vehicle has been recently turned 'off', and upon determining the vehicle has been recently turned 'off', commanding the HVAC system to a floor mode.

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Plymouth, MI, United States of America

Jeffrey S Arsenault