Open roof assembly for use in a vehicle and a method for operating same
AssigneeInalfa Roof Systems Group B.V.
InventorsDennie Wilhelmus Hendrikus Craane, Marco van Mourik
Life of this patent
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Abstract
An open roof assembly for use in a vehicle roof of a vehicle comprises a movably arranged closure member for closing an opening in the vehicle roof and a pinch detection module for detecting a pinch of an object between the closure member and an edge of the opening. The pinch detection module is operatively coupled to receive an input signal and is configured to detect the pinch based on said input signal and a threshold. The pinch detection module is configured to dynamically determine the threshold based on the input signal.
Claims18
An open roof assembly for use in a vehicle roof of a vehicle, the open roof assembly comprising a movably arranged closure member for closing an opening in the vehicle roof and a pinch detection module for detecting a pinch of an object between the closure member and an edge of the opening during a movement of the closure member, wherein the pinch detection module is operatively coupled to receive an input signal during the movement of the closure member and is configured to detect the pinch based on said input signal and a threshold, wherein the pinch detection module is configured to dynamically determine the threshold based on the input signal,
- wherein the pinch detection module is configured to normalize the input signal prior to determining the threshold, thereby providing a normalized input signal, and
- wherein a median value of a selected part of the input signal is derived and the median value is subtracted from the input signal to provide the normalized input signal.
A method for operating an open roof assembly for use in a vehicle roof of a vehicle, the open roof assembly comprising a movably arranged closure member for closing an opening in the vehicle roof and a pinch detection module for detecting a pinch of an object between the closure member and an edge of the opening, wherein the pinch detection module receives during movement of the closure member an input signal, and dynamically determines a threshold based on said input signal and to detect the pinch based on said input signal and the threshold, wherein dynamically determining the threshold comprises computing an input compensation value based on the input signal and combining a threshold bias value and the input compensation value, wherein computing the input compensation value comprises computing a median value of one of the input signal and a normalized input signal,
- wherein the method further comprises normalizing the input signal prior to determining the threshold, thereby providing the normalized input signal, and
- wherein a median value of a selected part of the input signal is derived and the median value is subtracted from the input signal to provide the normalized input signal.
A computer software product comprising computer readable and executable instructions for instructing a computer processor to perform a method for operating an open roof assembly for use in a vehicle roof of a vehicle, the open roof assembly comprising a movably arranged closure member for closing an opening in the vehicle roof and a pinch detection module for detecting a pinch of an object between the closure member and an edge of the opening, wherein the pinch detection module is operatively coupled to receive during movement of the closure member an input signal and is configured to detect the pinch based on said input signal and a threshold, wherein the method comprises dynamically determining the threshold based on the input signal, wherein dynamically determining the threshold comprises computing an input compensation value based on the input signal and combining a threshold bias value and the input compensation value, wherein computing the input compensation value comprises computing a median value of one of the input signal and a normalized input signal, wherein the pinch detection module is configured to normalize the input signal prior to determining the threshold, thereby providing the normalized input signal, and wherein a median value of a selected part of the input signal is derived and the median value is subtracted from the input signal to provide the normalized input signal.
Dependencies are inferred from the claim text.