Control apparatus for opening/closing member of vehicle and control method for opening/closing member of vehicle

• US 7,808,197 B2
• Filed: 05/30/2007
• Issued: 10/05/2010
• Est. Priority Date: 06/20/2006
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Kimura, Shogo, Takahashi, Koichi, Mizutani, Hiroyuki, Iwase, Yoshinori
• Primary Examiner(s): Donels; Jeffrey
• Assistant Examiner(s): RUSSELL, CHRISTINA MARIE
• Application Number:
  US11/806,219
• Publication Number:
  US 20080001563A1
• Time in Patent Office: 1,224 Days
• Field of Search: 318/469, 318/478, 318/466, 318/280, 318/283, 318/468, 318/443, 318/445, 296/146.4, 493/40
• US Class Current: 318/469
• CPC Class Codes: B60J 5/10 arranged at the vehicle rear B60J5/04 takes precedence ; bonnets or lids B62D25/10; tail gates for pick-up trucks B62D33/0273; counterbalancing E05F; springs, e.g. pneumatic F16F
• 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: E05Y 2400/554 sensing motor load
• CPC Class Codes: E05Y 2900/546 Tailgates
• CPC Class Codes: H02H 7/0851 for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal

Abstract

A control apparatus for an opening/closing member of vehicle includes a driving member for moving an opening/closing member for a vehicle, speed detecting means for detecting a drive speed of the driving member and control means for calculating a current speed difference between the drive speed of the driving member and a target drive speed, for calculating a current change amount between the calculated current speed difference and a previous speed difference calculated a predetermined time before, for calculating a current deviation by integrating the current change amount and for detecting an entrapment of an object by comparing the calculated deviation to a predetermined threshold.

Claims

1. A control apparatus for an opening/closing member of a vehicle comprising:

a driving member for moving an opening/closing member for a vehicle;

speed detecting means for detecting a drive speed of the driving member; and

control means for controlling the driving member in a manner where the detected drive speed of the driving member follows a predetermined target drive speed,

wherein the control means calculates a current speed difference between the detected drive speed of the driving member and the predetermined target drive speed, calculates a current change amount between the current speed difference and a previous speed difference calculated a predetermined time before, calculates a current deviation by integrating the current change amount with a previous deviation calculated a predetermined time before, and detects an entrapment of an object by comparing the current deviation to a predetermined threshold.

2. The control apparatus according to claim 1, wherein the control means calculates the current deviation by averaging the current change amount and a previous deviation calculated the predetermined time before.

3. The control apparatus according to claim 1, wherein the control means calculates the current deviation by weighting the current change amount with a previous deviation calculated the predetermined time before.

4. The control apparatus according to claim 1, wherein the control means controls the driving member in a manner where the detected drive speed of the driving member follows the target drive speed.

5. The control apparatus according to claim 4, wherein, once the entrapment is detected, the control means controls the driving member so as to stop or make a reverse movement.

6. The control apparatus according to claim 1, wherein the target drive speed includes at least two ranges at which the target drive speed is different.

7. The control apparatus according to claim 1, wherein the target drive speed includes a constant speed range in which the target drive speed is constant and an accelerating speed range in which the target drive speed increases.

8. The control apparatus according to claim 1, wherein the target drive speed includes a constant speed range in which the target drive speed is constant and a decelerating speed range in which the target drive speed decreases.

9. The control apparatus according to claim 1, wherein the target drive speed includes a range in which the target drive speed changes.

10. A control method for an opening/closing member of vehicle comprising:

detecting a drive speed of a driving member by which an opening/closing member for a vehicle is moved;

controlling the driving member in a manner where the detected drive speed of the driving member follows a predetermined target drive speed;

calculating a current speed difference between the detected drive speed of the driving member and the predetermined target drive speed;

calculating a current change amount between the current speed difference and a previous speed difference calculated a predetermined time before;

calculating a current deviation by integrating the current change amount with a previous deviation calculated a predetermined time before; and

detecting an entrapment of an object by comparing the current deviation to a predetermined threshold.

11. The control method according to claim 10, wherein deviation calculating step calculates the current deviation by averaging the current change amount and a previous deviation calculated the predetermined time before.

12. The control method according to claim 10, wherein the deviation calculating step calculates the current deviation by weighting the current change amount with a previous deviation calculated the predetermined time before.

13. The control method according to claim 10, wherein the predetermined target drive speed includes at least two ranges at which the predetermined target drive speed is different.

14. The control method according to claim 10, wherein the predetermined target drive speed includes a constant speed range in which the predetermined target drive speed is constant and an accelerating speed range in which the predetermined target drive speed increases.

15. The control method according to claim 10, wherein the predetermined target drive speed includes a constant speed range in which the predetermined target drive speed is constant and a decelerating speed range in which the predetermined target drive speed decreases.

16. The control method according to claim 10, wherein the predetermined target drive speed includes a range in which the predetermined target drive speed changes.

17. A control apparatus for an opening/closing member of a vehicle comprising:

a driving member for moving an opening/closing member for a vehicle;

speed detecting means for detecting a drive speed of the driving member; and

control means for controlling the driving member in a manner where the detected drive speed of the driving member follows a predetermined target drive speed,

wherein the control means for calculates a current speed difference between the detected drive speed of the driving member and the predetermined target drive speed, which is preset at a speed greater than zero before movement of the opening/closing member begins, calculates a current change amount by subtracting a previous speed difference calculated a predetermined time before from the current speed difference, calculates a current deviation by integrating the current change amount with a previous deviation calculated a predetermined time before, and detects an entrapment of an object by comparing the current deviation to a predetermined threshold.

18. A control apparatus according to claim 17, wherein the target drive speed which is preset before movement of the opening/closing member begins includes at least two ranges at which the preset speed is different.

19. A control apparatus according to claim 17, wherein the target drive speed which is preset before movement of the opening/closing member begins includes a constant speed range in which the preset speed is constant and an accelerating speed range in which the preset speed increases.

20. A control apparatus according to claim 17, wherein the target drive speed which is preset before movement of the opening/closing member begins includes a constant speed range in which the preset speed is constant and a decelerating speed range in which the preset speed decreases.