Heating/ventilating/air conditioning systems for vehicles

Details Heating/ventilating/air conditioning systems for vehicles Heating/ventilating/air conditioning systems for vehicles

2006-01-24

2006-01-24

Ali, Mohammad M. (Department: 3744)

Automatic temperature and humidity regulation

Ventilator type

Electrically actuated

C236S09100C, C062S179000, C165S043000, C454S075000

Reexamination Certificate

active

06988670

ABSTRACT:
An HVAC Integrated electronic Module (HIM) (41) for controlling airflow through an HVAC module (12), the HVAC module including a variable speed blower motor (18), a plurality of airflow doors (26–28) for controlling air direction and hot-cold air temperature blend, and electrical actuators, servo motors or stepper motors for said doors, the HIM including: one or more air temperature sensors (22) for measurement of one or more of intake air temperature, outlet air temperature, air-off evaporator temperature and engine coolant temperature; actuator control circuitry (31) for controlling said electrical actuators, servo motors or stepper motors; blower motor speed control circuitry (15) for speed control of the variable speed blower motor; sensor control circuitry for said sensors; and communication circuitry for a serial communication interface (42) to enable communication with a vehicle users interface (32).

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