POWER WINDOW APPARATUS
First Claim
1. A power window apparatus comprising:
- a movable member that constitutes a window of a vehicle;
a motor that drives the movable member;
a pulse generator that generates a pulse as the motor rotates; and
a controller that controls the motor, whereinthe controller includesreference position setting means for setting a pulse reference value corresponding to an upper-end lock position, serving as a reference position of the movable member,position detecting means for detecting a level of the height of the movable member relative to the reference position by adding the number of pulses generated by the pulse generator to the pulse reference value,lock detecting means for, on the basis of the period of pulses generated by the pulse generator, detecting a locked or unlocked state of the motor,pinch detecting means for, in the case where the lock detecting means detects the locked state of the motor, determining, on the basis of whether the level of the height of the movable member detected by the position detecting means is positioned in a non-detection area set near the reference position, whether the movable member has reached the upper-end lock position or a pinch has occurred in the movable member, andvoltage detecting means for detecting a driving voltage applied to the motor, andin the case where the pinch detecting means determines that the movable member has reached the upper-end lock position, the reference position setting means corrects the pulse reference value on the basis of the driving voltage applied to the motor detected by the voltage detecting means and sets the corrected value.
1 Assignment
0 Petitions
Accused Products
Abstract
A power window apparatus includes a movable member, a motor, a pulse generator that generates a pulse as the motor rotates, and a controller. The controller includes a reference position setting unit that sets a pulse reference value corresponding to a reference position, a position detecting unit that detects a level of the height of the movable member on the basis of pulses, a lock detecting unit that, on the basis of pulses, detects a locked or unlocked state of the motor, a pinch detecting unit that, in the case where the locked state of the motor is detected, determines, on the basis of whether the level of the height of the movable member is positioned in a non-detection area, whether the movable member has reached the upper-end lock position or a pinch has occurred, and a voltage detecting unit that detects a driving voltage applied to the motor.
39 Citations
4 Claims
-
1. A power window apparatus comprising:
-
a movable member that constitutes a window of a vehicle; a motor that drives the movable member; a pulse generator that generates a pulse as the motor rotates; and a controller that controls the motor, wherein the controller includes reference position setting means for setting a pulse reference value corresponding to an upper-end lock position, serving as a reference position of the movable member, position detecting means for detecting a level of the height of the movable member relative to the reference position by adding the number of pulses generated by the pulse generator to the pulse reference value, lock detecting means for, on the basis of the period of pulses generated by the pulse generator, detecting a locked or unlocked state of the motor, pinch detecting means for, in the case where the lock detecting means detects the locked state of the motor, determining, on the basis of whether the level of the height of the movable member detected by the position detecting means is positioned in a non-detection area set near the reference position, whether the movable member has reached the upper-end lock position or a pinch has occurred in the movable member, and voltage detecting means for detecting a driving voltage applied to the motor, and in the case where the pinch detecting means determines that the movable member has reached the upper-end lock position, the reference position setting means corrects the pulse reference value on the basis of the driving voltage applied to the motor detected by the voltage detecting means and sets the corrected value. - View Dependent Claims (2, 3, 4)
-
Specification