Patent ID: 7926385

Claim:
A vehicle passive entry side door latch release system engageable with a release cable connected a door latch, said door latch release system comprising: a movable linkage assembly engageable with the release cable; and a motor including an output shaft having a first gear engaged with a second gear affixed to or formed with a third gear engaged with at least one ratcheting pawl engaged with internal gear teeth of a ring gear rotatably affixed to a coil spring, said ring gear including external teeth engageable with a rack affixed to or formed with said linkage assembly to move the release cable to unlatch the door latch, wherein operation of said motor in a first motor rotary direction drives said first, second and third gears in a first gear rotary direction to rotatably engage said at least one ratcheting pawl against said internal gear teeth of said ring gear to rotate said ring gear in said first gear rotary direction to energize said coil spring, and operation of said motor in a second opposite motor rotary direction drives said first, second and third gears in a second opposite gear rotary direction to rotatably disengage said at least one ratcheting pawl from said internal gear teeth of said ring gear to allow stored energy in said coil spring to drive said ring gear in said second opposite gear rotary direction and to thereby drive said rack to move the release cable to unlatch the door latch.