ELECTROMAGNETIC CLUTCH
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
May 21, 2015
app pub date -
Nov 12, 2014
filing date -
Nov 20, 2013
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A torque transfer device for a motor vehicle includes a clutch for transferring torque between first and second shafts. An electromagnetic actuator includes an axially moveable armature for applying an application force to the clutch. An actuator control system includes a force sensor positioned within a clutch actuation force load path and is operable to output a signal indicative of a force applied to the clutch. The control system includes a controller operable to control the electromagnetic actuator to vary the force applied to the clutch based on the force sensor signal. As an option, the actuator control system can include a position sensor operable to output a signal indicative of a position of the armature. The control system determines a target torque to be transferred by the clutch and a target armature position based on a previously determined clutch torque vs. armature position relationship. The control system varies an electrical input to the electromagnetic actuator to perform closed loop control of the armature position.
First Claim
Other Claims data not available