The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Jun. 13, 2018
Ka Group Ag, Zürich, CH;
Jimmy Engman, Kongsberg, NO;
KA Group AG, Zürich, CH;
Abstract
The invention relates to an electrically driven clutch actuators () for actuating the clutch of a transmission of a vehicle. An actuator comprises a spindle nut () on a spindle () and a pressure piece () displaceable relative to the spindle nut () and coupled to the spindle nut by a biasing spring (). By rotation of the threaded spindle under a driving force of an electric motor (), the spindle nut () compresses the biasing spring () and displaces the pressure piece () to disengage the clutch. A latching mechanism () is configured to limit displacement of the spindle nut away from the pressure piece under the force of the expanding biasing spring when the driving force is reduced below a predetermined level. Further, a control unit is described that reduces the driving force in response to a trigger condition to reduce power consumption in the clutch disengaged state.