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    • 51. 发明专利
    • DE69401249T2
    • 1997-05-07
    • DE69401249
    • 1994-08-18
    • UNITED TECHNOLOGIES AUTOMOTIVE
    • WRENBECK BRUCE RKELLEY JEFFREY TPEREZ PEDRO A
    • H02H7/085E05F15/00
    • A power window system employs a computer based control (12) that receives signals from a window position sensor (20). As the window (16) moves, the position sensor produces periodic signals as an output. The computer cyclically looks for a change in the frequency of the signals as an indication that the window is obstructed and decelerating. Based on the instantaneous deceleration, the computer recalls a stored value for motor force. The recalled forces are accumulated in synchronism with the position sensor output during the deceleration, manifesting the force applied to the obstruction as the window presses on it. The window is reversed when the accumulated force exceeds a stored value. The uppermost window position is a stored value for the position sensor output obtained when the window is closed for the first time. Each time the window is closed thereafter, an offset is added to that value, the sum defining the point at which the window engages the window seal. The offset is the change in the position sensor output signal as the window is slowed by the seal until the motor stops when a stored value of force is applied to the seal.
    • 55. 发明专利
    • VEHICLE MIRROR ADJUSTMENT GEAR TRAIN
    • CA2157216A1
    • 1996-10-01
    • CA2157216
    • 1995-08-30
    • UNITED TECHNOLOGIES AUTOMOTIVE
    • PERRY WILLIAM MHELMER KERRY L
    • B60R1/06B60R1/072F16H1/16F16H19/04B60R1/02
    • An improved gear train for the adjustment structure in a mirror includes a slip clutch disk connection that allows a pinion gear to rotate relative to an intermediate gear reduction. The pinion gear is engaged to rotate a rack, and th e rack is connected to the mirror to adjust the position of the mirror. The rack i s spring biased into engagement with the pinion, thus insuring that the two move w ith each other quietly and smoothly. The rack can be biased into engagement with the pinion gear, since it need not be able to slip relative to the pinion gear, as w as the case in the prior art. The clutch disk allows the pinion gear to move with the r ack when the mirror is manually adjusted. The inventive clutch disk is relatively simple, including a clutch drive gear rotatably journaled on a drive shaft. The drive shaft is fixed to rotate with the pinion gear. A spring biases a friction face o f the clutch drive gear into engagement with the clutch disk, which also rotates with the pinion gear. Since the pinion gear may slip relative to the clutch drive gear, b ut will always move with the rack, a memory feedback position control can sense the rotational position of the pinion gear and provide an accurate indication of the actual position of the rack, and hence the mirror.