Open roof assembly for use in a vehicle and a method for operating same

• Main Authors: Craane, Dennie Wilhelmus Hendrikus, Van Mourik, Marco
• Format: Patent
• Language: English
• Published: 11.06.2024
• Subjects: CALCULATING; CHECKS FOR WINGS; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; FIXED CONSTRUCTIONS; KEYS; LOCKS; PERFORMING OPERATIONS; PHYSICS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SAFES; TRANSPORTING; VEHICLES IN GENERAL; WINDOW OR DOOR FITTINGS; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

An open roof assembly for use in a vehicle roof comprises a moveably arranged closure member and a drive system operatively coupled to the closure member for moving the closure member along a motion trajectory. The drive system comprises an electric motor and a control unit for controlling operation of the electric motor. The control unit comprises a mathematical model describing at least a part of the drive system; model parameters and a motion reference field. The control unit is configured to update the model parameters based on a received value of a first drive system variable; determine a value of a second drive system variable using the mathematical model; determine a comparison value by comparing the value of the second drive system value and a corresponding reference value of the motion reference field; and detect presence of an obstruction if the comparison value lies outside a predetermined value range.