Window control device for a vehicle and a method therefor

Patent metadata

Field	Value
Publication number	US-10601220-B2
Application number	US-201715677831-A
Country	US
Kind code	B2
Filing date	Aug 15, 2017
Priority date	Apr 14, 2017
Publication date	Mar 24, 2020
Grant date	Mar 24, 2020

Abstract

A window control device for a vehicle, and a method therefor, include a driving motor configured to drive a window glass, a first sensor configured to generate one pulse signal corresponding to a rotation of the driving motor, a second sensor configured to sense a voltage signal provided to the driving motor, and a controller configured to perform a safety function based on the one pulse signal generated by the first sensor and the voltage signal sensed by the second sensor. Although a fault occurs in one of two hall sensors, the window control device may normally perform the safety function.

First claim

What is claimed is:

1. A device for controlling a window of a vehicle, the device comprising:
a driving motor configured to drive a window glass;
a first hall sensor configured to generate a first pulse signal corresponding to a rotation of the driving motor;
a second hall sensor configured to generate a second pulse signal corresponding to a rotation of the driving motor;
a voltage sensor configured to sense a voltage signal provided to the driving motor; and
a controller configured to perform a safety function based on one of only the first pulse signal generated by the first hall sensor and the voltage signal sensed by the voltage sensor or only the second pulse signal generated by the second hall sensor and the voltage signal sensed by the voltage sensor.

2. The device of claim 1 , wherein the controller is configured to:
if a fault occurs in the first hall sensor, perform the safety function based on the second pulse signal generated by the second hall sensor and the voltage signal sensed by the voltage sensor.

3. The device of claim 1 , wherein the controller is configured to:
determine whether the voltage signal provided to the driving motor is a voltage signal for a forward rotation of the driving motor or a voltage signal for a reverse rotation of the driving motor; and
detect a direction of the window glass.

4. The device of claim 3 , wherein the controller is configured to:
calculate a speed of the window glass using the second pulse signal.

5. The device of claim 4 , wherein the controller is configured to:
detect a real-time location of the window glass based on the speed of the window glass, the direction of the window glass, and a current location of the window glass.

6. The device of claim 5 , wherein the controller is configured to:
determine that an obstacle is caught if a raising speed of the window glass is less than or equal to a threshold value while the window glass is raised; and
lower the window glass, which is being raised.

7. The device of claim 6 , wherein the controller is configured to:
monitor whether the driving motor lowers the window glass, which is being raised, when performing the safety function; and
if the window glass, which is being raised, is not lowered, perform the safety function again.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Dy Auto Corp

Inventors

• Shon Kyong Ho
• Cho Kil Sang
• Shin Sug Woo
• Kim Baek Yong
• Jo Bo Sung
• Kim Chang Seong

Classifications

• H03K2217/960705

  Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe · CPC title

• H02P7/00

  Arrangements for regulating or controlling the speed or torque of electric DC motors · CPC title

• H02H7/0851 Primary

  for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal · CPC title

• E05F15/689 Primary

  specially adapted for vehicle windows · CPC title

• H02P7/063

  using centrifugal devices, e.g. switch, resistor · CPC title