Abstract: A method of controlling a HVAC system for a hybrid vehicle having a refrigerant compressor driven by an engine is disclosed. The method may comprise: determining a requested air conditioning operating point for a passenger compartment; estimating a time to reach the requested operating point; based on the previous steps, estimating a maximum allowed compressor off time; determining if the allowed compressor off time is greater than a minimum engine off time; if the allowed compressor off time is greater than the engine off time, determining if the vehicle is entering an allowable engine off mode; if so, commencing engine shut-off mode; if engine shut-off is anticipated, prior to commencing the shut-off mode, adjusting the HVAC system to maximize cooling of the passenger compartment with minimum energy usage; and if the engine shut-off is commenced, monitoring the HVAC system to determine when engine restart is needed to maintain comfort.

Abstract: A method for controlling a fan in a vehicle includes comparing the current temperature of at least a first device and a second device to multiple temperature ranges for each of said devices and determining on the basis of said comparisons whether fan speed should be changed, increasing fan speed to a maximum fan speed if at least one of the comparisons indicates that the maximum fan speed is desired, increasing fan speed to a reference fan speed if at least one of the comparisons indicates that an increase in fan speed less than the maximum fan speed is desired, and decreasing fan speed to a reference fan speed if the comparisons indicate that a decrease in fan speed is desired.

Abstract: A method for controlling a vehicle's lighting functionality is disclosed herein. The method may include realizing a preferred vehicle lighting configuration and transmitting a signal to the vehicle via a radio frequency communication system. In response to the signal, the vehicle lighting system may alter a current vehicle lighting configuration to correspond with the preferred vehicle lighting configuration.

Abstract: A hybrid electric vehicle having an air conditioning system, an engine and a belt-alternator-starter motor-generator, and a method of operation, is disclosed. A torque transfer assembly, such as a pulley and belt assembly, engages the engine and motor-generator, and includes a clutched member for selectively disconnecting the torque transfer between the engine and motor-generator. A refrigerant compressor includes a compressor shaft rotationally coupled to and driven by the motor-generator shaft. The compressor may be driven by the motor-generator when the engine is not operating.

Abstract: The present invention concerns a method for cooling a passenger compartment in a hybrid vehicle that operates an engine intermittently during vehicle operation. The hybrid vehicle includes an HVAC system having an HVAC duct, a blower for directing a flow of air through the HVAC duct, an evaporator located within the HVAC duct, and a heater core. The heater core has a coolant inlet outlet and is located downstream of the evaporator in the HVAC duct. The method includes the steps of cooling a refrigerant; inducing a flow of the cooled refrigerant through the evaporator; blocking a flow of coolant through the coolant inlet and outlet to trap coolant in the heater core; activating the blower to move air through the evaporator and heater core; turning off the vehicle engine; measuring a duct outlet temperature; and starting the engine when the measured duct outlet temperature is above a predetermined temperature.

Abstract: An air outlet for a motor vehicle air conditioning system has end vanes that may be pivoted in parallel with a central group of vanes or positioned at opposite angles to each other and transverse to the central group by operation of a lever, a rotary-to-linear actuator mounted on the lever and a wire form spring.