OPENING AND CLOSING CONTROL DEVICE

• US 20180202213A1
• Filed: 07/20/2016
• Published: 07/19/2018
• Est. Priority Date: 07/22/2015
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Original Assignee: Kabushiki Kaisha Tokai RIKA Denki Seisakusho
• Inventors: SHITARA, Shuji
• Application Number:
  US15/743,374
• Publication Number:
  US 20180202213A1
• Time in Patent Office: Days
• CPC Class Codes: B60J 1/16 slidable
• CPC Class Codes: E05F 15/41 Detection by monitoring transmitted force or torque E05F15/48 takes precedence; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
• CPC Class Codes: E05F 15/46 responsive to changes in electrical capacitance
• CPC Class Codes: E05F 15/603 using rotary electromotors
• CPC Class Codes: E05F 15/689 specially adapted for vehicle windows

Abstract

An opening/closing control device controls movement of an opening/closing body. The opening/closing control device includes an entrapment detection sensor configured to perform entrapment detection in a closing movement of the opening/closing body, a pulse generator configured to generate pulses in accordance with a movement speed of the opening/closing body, and a control unit configured to determine that the opening/closing body has reached a fully-closed position when the entrapment detection sensor detects entrapment after the pulses generated by the pulse generator indicates that movement of the opening/closing body has stopped.

Claims

1. An opening/closing control device that controls movement of an opening/closing body, the opening/closing control device comprising:

an entrapment detection sensor configured to perform entrapment detection during a closing movement of the opening/closing body;

a pulse generator configured to generate pulses in accordance with a movement speed of the opening/closing body; and

a control unit configured to determine that the opening/closing body has reached a fully-closed position when the entrapment detection sensor detects entrapment after the pulses generated by the pulse generator indicate that movement of the opening/closing body has stopped.

2. The opening/closing control device according to claim 1, wherein the control unit is configured to determine that entrapment has occurred when the entrapment detection sensor detects entrapment before the pulses indicate that movement of the opening/closing body has stopped.

3. The opening/closing control device according to claim 1, wherein

the control unit is configured to perform an entrapment determination based on the pulses if the pulses indicate that movement of the opening/closing body has reduced speed when the entrapment detection sensor does not detect entrapment, and

the entrapment determination based on the pulses includes detecting entrapment when a physical quantity based on the pulses becomes greater than or equal to a reversing threshold value.

4. The opening/closing control device according to claim 1, wherein

the entrapment detection sensor is an electrostatic sensor that detects entrapment when capacitance, which is electric charge accumulated in a detected subject, becomes greater than or equal to a threshold value, and

the control unit is configured to determine that entrapment of a charged object has occurred when the electrostatic sensor detects entrapment before the pulses indicate that movement of the opening/closing body has stopped.

5. The opening/closing control device according to claim 4, wherein the control unit is configured to determine that entrapment of a non-charged object has occurred if the pulses do not indicate that movement of the opening/closing body has stopped when the electrostatic sensor detects entrapment.

6. The opening/closing control device according to claim 1, wherein

the opening/closing body is a window glass configured to slide in a window frame and reach the fully-closed position by sliding in a glass run of the window frame,

the control unit is configured to perform entrapment determinations based on the pulses if the pulses indicate that movement of the window glass has reduced speed when the entrapment detection sensor does not detect entrapment,

the entrapment determinations based on the pulses include detecting entrapment when a physical quantity based on the pulses becomes greater than or equal to a reversing threshold value,

the control unit is configured to perform the entrapment determinations based on the pulses using a first-time limited reversing threshold value during a first closing movement after power is turned on, and

the first-time limited reversing threshold value is set exceeding the physical quantity based on the pulses generated by the pulse generator when assuming that the window glass is sliding in the glass run.

7. The opening/closing control device according to claim 4, wherein

the opening/closing body is a window glass configured to slide in a window frame and reach the fully-closed position by sliding in a glass run of the window frame,

the control unit is configured to perform entrapment determinations based on the pulses if the pulses indicate that movement of the window glass has reduced speed when the electrostatic sensor does not detect entrapment,

the entrapment determinations based on the pulses include detecting entrapment when a physical quantity based on the pulses generated by the pulse generator becomes greater than or equal to a reversing threshold value,

the control unit is configured to use a first-time limited reversing threshold value to perform the entrapment determinations with the pulses if the pulses indicate that the movement of the opening/closing body has reduced speed when the electrostatic sensor detects capacitance that has increased within a range less than the threshold value during a first closing movement after power is turned on, and

the first-time limited reversing threshold value is set exceeding the physical quantity based on the pulses when assuming that the window glass is sliding in the glass run.