Patent ID: 6405822
Filing Date: 2002-06-18
Classification: B60K

Abstract:
A torque distribution system for a four-wheel-drive vehicle comprising:front and rear shafts; an idle gear mounted on one of said front and rear shafts; a transfer gear mounted on the other of said front and rear shafts; a chain connecting the idle gear to the transfer gear; a clutch comprising, a first drum integrally fixed to and coaxially and laterally extending from the idle gear and having a first circumferential friction plane, a second drum slidably mounted on the shaft where the idle gear is mounted and having a second circumferential friction plane such that the second drum selectively slides toward the first drum such that the second circumferential friction plane engages the first circumferential friction plane; a first sensor for measuring a rotational speed of the front shaft; a second sensor for measuring a rotational speed of the rear shaft; and an electronic controller coupled to the first and second sensors for receiving signals from the first and second sensors, the controller controlling movement of the second drum for engaging the first drum in response to said signals.