• Patent Title: Method and Control Unit for Determining an Operating Condition of a Form-Locking Shifting Element
  • Application No.: US16700492
    Application Date: 2019-12-02
  • Publication No.: US20200173544A1
    Publication Date: 2020-06-04
  • Inventor: Christian PannekMartina Jehle
  • Applicant: ZF Friedrichshafen AG
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@314edec
  • Main IPC: F16H61/12
  • IPC: F16H61/12
Method and Control Unit for Determining an Operating Condition of a Form-Locking Shifting Element
Abstract:
A form-locking shift element may include a first shift-element half and a second shift-element half which are engageable with each other by moving at least the first shift-element half. A method for determining an operating condition of the form-locking shift element may include monitoring a position of the first shift-element half with a sensor, and, when a value of a signal generated by the sensor is greater than an applicable value and when the first shift-element half is actuated and displaced towards an engaged operating condition, determining that the shift element is sufficiently engaged to transmit a torque at the form-locking shift element. The applicable value corresponds to a defined overlap between the first and second shift-element halves that is less than an overlap when the first shift-element half is in the engaged operating condition.
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