Door opening/closing control device

• US 20060137250A1
• Filed: 12/21/2005
• Published: 06/29/2006
• Est. Priority Date: 12/28/2004
• Status: Active Grant

• Current Assignee: Mitsui Kinzoku Act Corporation (Mitsui Mining & Smelting Co., Ltd.)
• Original Assignee: Mitsui Mining and Smelting Company Limited
• Inventors: Imai, Takuya, Senbongi, Tsunenori
• Granted Patent: US 7,690,156 B2
• Time in Patent Office: Days
• US Class Current: 49/360
• CPC Class Codes: E05F 15/40 Safety devices, e.g. detection of obstructions or end positions
• CPC Class Codes: E05Y 2900/531 Doors

Abstract

A control device controls opening/closing of a sliding door of a vehicle by a motor in cooperation with a drive device that opens and closes the sliding door, and applies proportional plus integral plus differential control to motor speed based on a driving pattern of the sliding door. When a difference between a door speed and a motor speed exceeds a threshold, the control device judges that the vehicle is parked in a tilted state, and adjusts a sum of a proportional element, an integral element, and a differential element of a proportional plus integral plus differential control to a vehicle-tilted time element.

Claims

1. A control device for controlling opening/closing of a sliding door of a vehicle by a motor in cooperation with a drive device that opens and closes the sliding door, comprising:

a detecting unit that detects door speed of the sliding door;

an applying unit that applies, based on a driving pattern of the sliding door set in advance, proportional plus integral plus differential control to motor speed of the motor;

a tilt-judging unit that judges, when a difference between the door speed and the motor speed exceeds a threshold within a predetermined time from when the sliding door starts to open/close, that the vehicle is parked in a tilted state; and

an adjusting unit that adjusts a sum of a proportional element, an integral element, and a differential element of the proportional plus integral plus differential control to a vehicle-tilted time element.

2. The control device according to claim 1, wherein the vehicle-tilted time element limits the sum of the proportional element, the integral element, and the differential element.

3. The control device according to claim 1, further comprising:

a calculating unit that calculates a hunting judgment position after elapse of a predetermined time from when the tilt-judging unit judges that the vehicle is parked in a tilted state, wherein

when the sliding door does not reach the hunting judgment position after the elapse of the predetermined time, the tilt-judging unit does not perform judgment of whether the vehicle is parked in a tilted state and the adjusting unit does not perform adjustment of the vehicle-tilted time element.

4. A control device for controlling opening/closing of a sliding door of a vehicle by a motor in cooperation with a drive device that opens and closes the sliding door, comprising:

a detecting unit that detects door speed of the sliding door;

an applying unit that applies, based on a driving pattern of the sliding door set in advance, feedback control to motor speed of the motor;

a tilt-judging unit that judges, when a difference between the door speed and the motor speed exceeds a threshold within a predetermined time from when the sliding door starts to close, that the vehicle is parked in a tilted state; and

an adjusting unit that brings forward a deceleration start timing of the driving pattern.

5. A control device for controlling opening/closing of a sliding door of a vehicle by a motor in cooperation with a drive device that opens and closes the sliding door, comprising:

a detecting unit that detects door speed of the sliding door;

an applying unit that applies, based on a driving pattern of the sliding door set in advance, feedback control to motor speed of the motor;

a tilt-judging unit that judges, when the sliding door closes from a half-opened state, that the vehicle is parked in a tilted state, regardless of whether the vehicle is actually tilted; and

an adjusting unit that brings forward a deceleration start timing of the driving pattern.

6. A control device for controlling opening/closing of a sliding door of a vehicle by a motor in cooperation with a drive device that opens and closes the sliding door, comprising:

a detecting unit that detects door speed of the sliding door;

an applying unit that applies, based on a driving pattern of the sliding door set in advance, feedback control to motor speed of the motor;

a tilt-judging unit that judges, when a difference between the door speed and the motor speed exceeds a threshold within a predetermined time from when the sliding door starts to open, that the vehicle is parked in a tilted state; and

an adjusting unit that delays an acceleration start timing of the driving pattern.

7. A control device for controlling opening/closing of a door of a vehicle by a motor in cooperation with a drive device that opens and closes the door, comprising:

a detecting unit that detects door speed of the door;

an applying unit that applies, based on a driving pattern of the door set in advance, feedback control to motor speed of the motor;

a follow-up judging unit that judges, when a difference between the door speed and the motor speed exceeds a threshold after elapse of a predetermined time from when the door starts to open/close, that the door is subjected to a follow-up operation.

8. The control device according to claim 7, wherein

the follow-up judging unit judges, when a difference between the door speed increased after being decreased and the motor speed converge to a difference within a threshold, and an increase in the door speed exceeds a predetermined amount after the follow-up judging unit judges that the door is subjected to follow-up operation, that the follow-up operation is canceled.

9. The control device according to claim 8, wherein the adjusting unit alleviates for a predetermined time, when the follow-up judging unit judges that the follow-up operation is canceled, a pinch judgment value used for judging whether a foreign matter is pinched between the vehicle and the door.