Ice breaking strategy for vehicle side windows

Patent metadata

Field	Value
Publication number	US-9512662-B1
Application number	US-201514714193-A
Country	US
Kind code	B1
Filing date	May 15, 2015
Priority date	May 15, 2015
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

Described herein is a vehicle side window system and method for implementing an ice breaking strategy. The ice breaking strategy receives and analyzes sensor information from one or more environmental sensors to determine when to preemptively implement an ice breaking routine. The ice breaking strategy is also capable of monitoring one or more components of the vehicle side window system to determine when to cease the ice breaking routine.

First claim

What is claimed is:

1. A vehicle comprising:
a sensor configured to sense an environmental condition;
a motor configured to move a window; and
a control unit configured to:
operate in an off state before receiving a wake up signal;
receive the wake up signal enabling the control unit to receive sensor information from the sensor;
receive the sensor information, the sensor information identifying an environmental condition sensed by the sensor;
analyze the sensor information by comparing the environmental condition to an environmental condition limit;
determine an ice breaking condition is satisfied when the environmental condition satisfies the environmental condition limit; and
control the motor to rotate according to an ice breaking routine when the ice breaking condition is satisfied.

2. The vehicle of claim 1 , wherein the sensor includes one or more of a temperature sensor configured to sense an ambient air temperature, a humidity sensor configured to sense a humidity level, and a precipitation sensor configured to sense a precipitation level.

3. The vehicle of claim 1 , wherein the wake up signal is received from a vehicle key FOB.

4. The vehicle of claim 1 , wherein the wake up signal is received to correspond to a predetermined time of day or a predetermined time interval.

5. The vehicle of claim 1 , wherein the environmental condition is a temperature reading, and the environmental condition limit is a predetermined temperature; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the temperature reading is less than the predetermined temperature.

6. The vehicle of claim 1 , wherein the environmental condition is a humidity reading, and the environmental condition limit is a predetermined humidity; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the humidity reading is less than the predetermined humidity.

7. The vehicle of claim 1 , wherein the environmental condition is a precipitation reading, and the environmental condition limit is a predetermined precipitation; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when a temperature reading is greater than the predetermined precipitation.

8. The vehicle of claim 1 , wherein the environmental condition is at least one of a temperature reading, a humidity reading, and a precipitation reading, and the environmental condition limit is at least one of a predetermined temperature, a predetermined humidity, and a predetermined precipitation; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the at least one of the temperature reading, the humidity reading, and the precipitation reading satisfies the at least one of the predetermined temperature, the predetermined humidity, and the predetermined precipitation.

9. The vehicle of claim 1 , wherein the control unit is further configured to:
monitor a motor current of the motor;
determine the motor current reaches a stall current during the ice breaking routine; and
control the ice breaking routine to stop when the motor current is determined not to reach the stall current.

10. The vehicle of claim 1 , wherein the control unit is further configured to:
monitor at least one of a motor voltage, a motor torque, and a motor speed;
determine the motor reaches at least one of a stall voltage, a stall torque, and a stall speed during the ice breaking routine; and
control the ice breaking routine to stop when the motor is determined not to reach at least one of the stall voltage, the stall torque, and the stall speed.

11. The vehicle of claim 1 , wherein the environmental condition is a precipitation reading, and the environmental condition limit is a predetermined precipitation; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the temperature reading is greater than the predetermined precipitation.

12. A vehicle comprising:
a sensor configured to sense an environmental condition;
a motor configured to move a window; and
a control unit configured to:
receive sensor information identifying the environmental condition from the sensor while the control unit is in an off state;
comparing the environmental condition to an environmental condition limit;
determine an ice breaking condition is satisfied when the comparison is satisfied; and
control an ice breaking routine based on the determination.

13. The vehicle of claim 12 , wherein the control unit is configured to control the motor to rotate according to an ice breaking routine when the ice breaking condition is determined to be satisfied.

14. The vehicle of claim 12 , wherein the environmental condition is a temperature reading, and the environmental condition limit is a predetermined temperature; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the temperature reading is less than the predetermined temperature.

15. The vehicle of claim 12 , wherein the environmental condition is a humidity reading, and the environmental condition limit is a predetermined humidity; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the humidity reading is less than the predetermined humidity.

16. The vehicle of claim 12 , wherein the environmental condition is at least one of a temperature reading, a humidity reading, and a precipitation reading, and the environmental condition limit is at least one of a predetermined temperature, a predetermined humidity, and a predetermined precipitation; and
wherein the control unit is configured to determine the ice breaking condition is satisfied when the at least one of the temperature reading, the humidity reading, and the precipitation reading satisfies the at least one of the predetermined temperature, the predetermined humidity, and the predetermined precipitation.

17. The vehicle of claim 12 , wherein the control unit is further configured to:
monitor at least one of a motor current, a motor voltage, a motor torque, and a motor speed;
determine the motor reaches at least one of a stall current, a stall voltage, a stall torque, and a stall speed during the ice breaking routine; and
control the ice breaking routine to stop when the motor is determined not to reach at least one of the stall current, the stall voltage, the stall torque, and the stall speed.

Assignees

• Ford Global Tech Llc

Inventors

• Dudar Aed M
• Ghannam Mahmoud Yousef

Classifications

• H02P7/00

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

• B60J1/00

  Windows; Windscreens; Accessories therefor (B60J10/00 takes precedence; air curtains instead of windows B60J9/04 {; sealing strips for windshields B60J10/70; sealing sash guides for sliding window panes B60J10/74; glass partitions inside vehicles to protect occupants against personal attack B60R21/12}) · CPC title

• E05F15/695

  Control circuits therefor · CPC title

• E05F15/71 Primary

  responsive to temperature changes, rain, wind or noise · CPC title

• H02H7/0851

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