POWER WINDOW MOTOR CONSTRUCTION


BHE091258000T05

Structure and Operation

• The power window motor consists of a motor, connector and gear.

• Two Hall effect switches are set in the connector.

• The Hall effect switch utilizes magnets set on a rotating axis to sense the power window motor rotation, and outputs a synchronized pulse to the power window main switch.

• Hall effect switch No. 1 outputs one pulse cycle for each rotation of the power window motor axle. Accordingly, the power window main switch detects the rotational speed of the power window motor.

• The power window main switch detects the rotational direction of the power window motor by the difference between high and low pulse points from Hall effect switch No. 1 and 2.

1
Motor
2
Connector
3
Gear
4
Hall effect switch No.1
5
Hall effect switch No.2
6
Shaft
7
Magnet
8
Low
9
High
10
Pulse (Hall effect switch No.1)
11
Pulse (Hall effect switch No.2)
12
One revolution of power window motor
13
Detection of window movement distance
14
Up
15
Down
16
Detection of window movement direction