US Patent No. 9,302,566

METHOD FOR SHORT DROP ADJUSTMENT IN A FRAMELESS GLASS VEHICLE WINDOW SYSTEM


Patent No. 9,302,566
Issue Date April 05, 2016
Title Method For Short Drop Adjustment In A Frameless Glass Vehicle Window System
Inventorship Holger Pruessel, Sinzheim (DE)
Scott Averitt, Roseville, MI (US)
Kumar Saurabh, Electronic (IN)
Assignee Robert Bosch GmbH, Stuttgart (DE)

Claim of US Patent No. 9,302,566

1. A method for controlling movement of a window glass in a vehicle using an electric motor associated with a drive mechanism
through a cable, said method comprising the steps:
determining a first position of the window glass based on movement of the motor;
determining a stiffness of the cable, wherein said stiffness is determined based on an ambient temperature;
determining a position lag of the window glass based on the determined first position of the window glass, a second position
of the window glass representing a desired position of the window glass, and the stiffness of the cable, wherein the position
lag represents a distance between the window glass and the second position of the window glass; and

operating the electric motor to correct for the position lag of the window glass based on the determined position lag.