Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1994-06-06
1996-01-09
Ip, Paul
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
318281, 318466, H02P 118
Patent
active
054831350
ABSTRACT:
An adaptive control system and method for a vehicle window. The system and method include sensors for determining a motor current corresponding to a window position and for detecting a motor stall, and an electronic control module (ECM) for providing a position counter having a count representing the window position. The ECM is also provided for setting, independent of a dedicated motor actuation input signal, a second historical limit equal to the count when the window is driven by the motor toward the closed position and a motor stall is detected, as well as setting, independent of a motor actuation input signal, the second historical limit equal to the difference between the second historical limit and the count, and the count equal to a first historical limit, respectively, when the window is driven by the motor toward an open position and a motor stall is detected. The ECM is further provided for generating a first control signal operative to halt operation of the motor when the count equals the first historical limit, and generating a second control signal operative to halt operation of the motor when the count equals the second historical limit.
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Ford Motor Company
Ip Paul
May Roger L.
Sparschu Mark S.
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