Lawrence E Peruski

20130024011, Jan 24, 2013

Jul 22, 2011

13/188785

Markus Jochim - Troy MI, US
Lawrence E. Peruski - Canton MI, US
Barbara J. Czerny - Clarkston MI, US
Joseph G. D'Ambrosio - Clarkston MI, US
Rami I. Debouk - Dearborn MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

G05B 11/01

700 14

A method of controlling an actuator includes developing a sequence of actuation commands S(t)=C(t, t), C(t, t), . . . , C(t, t) obtained from data sensed before time tfor controlling the actuator at different time intervals (t, t), (t, t), . . . , (t, t). The sequence of actuation commands is transmitted to and stored in memory of an actuation ECU, which then applies the actuation command for time interval (t, t). If a fault affects a sensor, a control ECU or data communication therebetween, the actuation ECU will not receive an updated sequence of actuation commands S(t) at time t. If the updated actuation command sequence, the actuation ECU applies the actuation command for the time intervals (t, t), . . . , (t, t) from the sequence of actuation commands S(t) that is stored in the memory of the actuation ECU.

6709035, Mar 23, 2004

Dec 19, 2002

10/324589

Chandra Sekhar Namuduri - Troy MI
Lawrence E. Peruski - Canton MI
Gary Lee Jones - Farmington Hills MI

General Motors Corporation - Detroit MI

B60R 1938

293118, 293119, 293132

An extendible bumper system for a vehicle includes a controller system configured to: determine a distance of travel of a first end of a bumper structure using a signal from a position sensor in a first motor, determine a distance of travel of a second end of the bumper structure using a signal from a position sensor in a second motor, and independently adjust at least one of rotational speed and torque output of rotors in the first and second motors in response to the distances of travel. The rotational speed or torque output of the first and second rotors may be independently adjusted in response to a difference in the distances of travel of the first and second ends of the bumper structure, and the rotational speed or torque output of the first and second rotors may be accelerated or decelerated during predetermined distances of travel. A bumper energy absorber for supporting the bumper structure relative to a vehicle includes an inner tube, outer tube, lead screw, nut and motor. Rotation of the lead screw by the rotor causes translation of the nut along the lead screw for driving at least a portion of the bumper structure between extended and retracted positions.