Visteon Global Technolgoies, Inc.

Ford Motor Company Limited

Automotive Components Holdings, LLC

Clive McKenzie

Hyeongcheol Lee

Xiaohong Nina Duan

Norman Szalony

Brian James Andonian

Richard Michael Krzesicki

Dennis Cook

Sohel Anwar

Dean T Wisniewski

Hualin Tan

Aaron Kleinhans

Stephen Shen

Zhesheng Li

A differential mechanism for transmitting power from an input to an output includes a case containing a side gear, a locking member rotatably secured to the case and axially displaceable relative to the case. The locking member alternately engages the side gear to limit rotation of the side gear relative to the case, and disengages the side gear to permit rotation of the side gear relative to the case. An electromagnetic coil assembly is supported on the case for movement toward and away from the locking member. A first actuator including an electromagnetic coil is supported on the case for moving the locking member toward engagement with the side gear in response to energizing the coil. A second actuator urges the locking member away from engagement with the side gear.

Moving coil electronic locking differential

This invention describes a control method for a hydraulic coupling system that includes pressurizing a fluid in an actuator coupled to a multi-disk clutch pack to engage the clutch pack, pumping the fluid through the clutch pack to cool the clutch pack, and controlling one or more valve actuators and one or more pump-motors with a controller. The control method may incorporate pulse width modulation of the actuators, such as the actuators for the pump-motor and valve.

Control of a hydraulic coupling system

A torque-biasing system () including a torque-biasing device () and a control unit () for use in a vehicle (). The torque-biasing system is preferably installed and used in a vehicle having a first wheel () with a first rotational speed and a second wheel () with a second rotational speed, and an engine () with a torque output. The control unit () calculates an error value based on a different between the first rotational speed and second rotational speed and derives a control signal based upon proportional and integral terms of the error value with a forgetting factor. The control unit then sensor the control signal to the torque-biasing device ().

Torque-biasing system

A torque-biasing system () includes a torque-biasing device () and a control unit () for use in a motor vehicle. The torque-biasing system is preferably installed in a vehicle having a first front wheel () with a first rotational speed and second wheel () with a rear rotational speed and an engine () with a torque output. The control unit () functions to determined when and how to bias the torque output of the front and rear wheels, and to control the torque-biasing device () based on this determination.

A differential gear assembly for an automotive vehicle includes a differential housing. A first side gear and a second side gear are substantially axially aligned and spaced apart from one other, each of the side gears being supported by the differential housing for relative rotation therebetween and being adapted to engage an axle half-shaft. A clutch pack is mounted between and interconnects the differential housing and the first side gear. A ball screw assembly is adapted to selectively apply axial force to the clutch pack, thereby locking the first side gear to the differential housing and preventing relative rotational movement of the first side gear and the differential housing.

Selectively controlled limited slip differential

Growing community of inventors

Southfield, MI, United States of America

Clive McKenzie