The adjusting device (40) for the adjusting of movable components (30,31) of a vehicle, especially a flap in the heating, ventilation and/or air conditioning system, has a drive (41) in the form of a reluctance stepper motor. A control unit (42) produces c...

Process for controlling the air temperature of a vehicle air conditioning system comprises regulating the position of the temperature mixing flap (7) depending on the heating function. When the heating function is switched on, the flap stops an air flow th...

The passenger cabin ventilator DC drive motor (1) control system (2) includes two two-way switches working together (3), to reverse the polarity of the motor. A control circuit (7) as connected in series with the motor. It incorporates a PTC (Positive Temp...

An actuator (10) includes a lower housing member (20), an upper housing member (30) attached to the lower one, and a cover member. Inside thelower housing member are arranged a driving source (15), a power-transmitting mechanism (17) configured for transmi...

An automobile servomotor controller includes a master side amplifier unit having an amplifier side control circuit for transmitting a designation signal and a slave side motor unit having an actuator side control circuit which controls driving of a motor b...

The controller has a continuously rotatable feedback potentiometer (1) reporting the angular position of the motor (2). A control potentiometer (4) adjusts the air regulation and control electronics (5) are integrated between the motor and the control pote...

A vehicle air-conditioning system includes an air-conditioning amplifier unit being connected to a plurality of door actuators through one communication and one power line; and the air-conditioning amplifier unit having first door-operation self-diagnostic...

A vehicle air-conditioning system includes an air-conditioning amplifier unit being connected to a plurality of door actuators through one communication and one power line; and the air-conditioning amplifier unit having first door-operation self-diagnostic...

The displacement of a shutter to be identified is controlled over its entire angular deflection range. The number of motor steps is counted during this displacement, and the number of steps counted is compared to at least one piece of information prerecord...

The control module (MOD) is in series with the motor (M) and regulates power to the motor, using a positive temperature coefficient resistance, whose resistance increases as the motor attempts to draw heavy current when the vane (4) stops at the end of its...