Process for controlling a closing device in a motor vehicle
AssigneeDaimlerChrysler AG
InventorsSteffen Kreiner, Hermann Schneider
Life of this patent
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Abstract
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.
Claims12
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.
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.
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.
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.
Dependencies are inferred from the claim text.