Process for controlling a closing device in a motor vehicle
View Patent ↗In a process for controlling a closing device in a motor vehicle driven by an electric motor, in particular for controlling a motor vehicle sunroof, to protect a body part from being crushed during a closing motion, a closing resistance variable is detected. The closing resistance variable is characteristic of a force counteracting the closing motion, and is used to determine whether a crush situation exists. For this purpose, an additional auxiliary variable indicative of wind load forces at a certain speed is used. If a crush situation exists, a protective measure is initiated.
1. A process for controlling a closing device in a motor vehicle driven by an electric motor to protect against crushing of a body part during a closing motion of a closing means of the closing device comprising:
detecting a closing resistance variable which is characteristic of a force counteracting the closing motion of the closing means,
detecting the existence of a vehicle attachment on or above the vehicle and using the existence detected to determine an auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed,
using the closing resistance variable and the additional auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed to determine whether a crush situation exists, and
initiating a protective measure when a crush situation exists.
2. A process for controlling a closing device in a motor vehicle driven by an electric motor to protect against crushing of a body part during a closing motion of a closing means of the closing device comprising:
detecting a closing resistance variable which is characteristic of a force counteracting the closing motion of the closing means,
detecting the nature of a vehicle attachment on or above the vehicle and using the nature detected to determine an auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed,
using the closing resistance variable and the additional auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed to determine whether a crush situation exists, and
initiating a protective measure when a crush situation exists.
3. A process for controlling a closing device in a motor vehicle driven by an electric motor to protect against crushing of a body part during a closing motion of a closing means of the closing device comprising:
detecting a closing resistance variable which is characteristic of a force counteracting the closing motion of the closing means,
detecting the type or model of a vehicle attachment on or above the vehicle and using the nature detected to determine an auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed,
using the closing resistance variable and the additional auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed to determine whether a crush situation exists, and
initiating a protective measure when a crush situation exists.
4. A process for controlling a closing device in a motor vehicle driven by an electric motor to protect against crushing of a body part during a closing motion of a closing means of the closing device comprising:
detecting a closing resistance variable which is characteristic of a force counteracting the closing motion of the closing means,
detecting a fastening location of a vehicle attachment on or above the vehicle and using the nature detected to determine an auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed,
using the closing resistance variable and the additional auxiliary variable indicative of wind load forces exerted on the closing means at a certain speed to determine whether a crush situation exists, and
initiating a protective measure when a crush situation exists.
5. The process for controlling a locking device according to claim 1 , wherein the closing device is a motor vehicle sunroof.
6. The process for controlling a closing device according to claim 1 , wherein the closing resistance variable is a motor current of an electric driving motor of the closing device.
7. The process for controlling a closing device according to claim 2 , wherein the closing resistance variable is a motor current of an electric driving motor of the closing device.
8. The process for controlling a closing device according to claim 3 , wherein the closing resistance variable is a motor current of an electric driving motor of the closing device.
9. The process for controlling a closing device according to claim 4 , wherein the closing resistance variable is a motor current of an electric driving motor of the closing device.
10. The process for controlling a closing device according to claim 2 , wherein the closing device is a motor vehicle sunroof.
11. The process for controlling a closing device according to claim 3 , wherein the closing device is a motor vehicle sunroof.
12. The process for controlling a closing device according to claim 4 , wherein the closing device is a motor vehicle sunroof.