Abstract: An improved control for a motorized deck lid pulldown mechanism in which the pulldown sequence is selectively reversible to return the deck lid to its fully opened position if the operator of the vehicle elects to abort the pulldown sequence. Initial actuation of a momentary contact switch by the operator of the vehicle initiates the pulldown sequence, and a second actuation of the switch during the panel closing portion of the pulldown sequence independently reverses the motor to abort the pulldown and return the panel to its fully open position.

Abstract: An integrated panel control in which both the release and pulldown mechanisms are controlled by a single operator activated switch. Initial operator activation of the switch when the panel is closed energizes the release mechanism through a latch switch which indicates that the latch bolt and striker are mechanically coupled. Initial operator activation of the switch when the panel is open activates the motor of the pulldown mechanism through the latch switch in initiate a pulldown of the panel. A second activation of the switch during the pulldown aborts the pulldown sequence by reversing the pulldown motor, freeing a spring or other device to re-open the panel. A second activation of the switch after the latch bolt and striker are mechanically coupled energizes the release mechanism through the latch switch to uncouple the latch bolt from the striker, freeing a spring or other device to open the panel.

Abstract: A control for a motorized deck lid pull down mechanism which does not require the use of mechanically activated limit switches for detecting deck lid positions or the presence of closing or sealing obstructions. Detection of specified pull down conditions as well as the presence of deck lid obstructions is achieved by monitoring the magnitude of motor current in relation to various predefined motor current thresholds. Engagement of the deck lid with obstructions during the pull down sequence will cause the motor current to exceed the closing and sealing thresholds, terminating or reversing the respective function.

Abstract: In the print band timing system described herein, the bipolar pulse generated in a sensor by the passage of a print band timing mark is applied to a discriminating circuit which compares the pulse signal with a voltage level substantially equal to the nominal d.c. level of the sensor signal. Hystereis is provided in one direction only so that the nominal zero crossing is precisely determined in a time position relationship.