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CPC Subgroup Additional Only
F16D 2500/506

Relating the transmission

Full Title

External control of clutches by electric or electronic means > Problem to be solved by the control system > Relating the transmission

12 direct subcodes

Child Classifications

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  • F16D 2500/50607 Facilitating engagement of a dog clutches, e.g. preventing of gear butting
  • F16D 2500/50615 Facilitating disengagement of a dog clutch, e.g. by applying a pretension on the disengaging elements
  • F16D 2500/50623 Preventing transmission load change
  • F16D 2500/5063 Shaft dither, i.e. applying a pulsating torque to a (transmission) shaft to create a buzz or dither, e.g. to prevent tooth butting or gear locking
  • F16D 2500/50638 Shaft speed synchronising, e.g. using engine, clutch outside transmission
  • F16D 2500/50646 Control of the main clutch to prevent or release a tooth-to-tooth condition in the transmission
  • F16D 2500/50653 Gearing shifting without the interruption of drive
  • F16D 2500/50661 Limit transmission input torque
  • F16D 2500/50669 Neutral control, i.e. preventing creep or drag torque being transmitted in a transmission with a torque converter when the vehicle is stationary
  • F16D 2500/50676 Optimising drive-train operating point, e.g. selecting gear ratio giving maximum fuel economy, best performance
  • F16D 2500/50684 Torque resume after shifting
  • F16D 2500/50692 Simulate the characteristics of a torque converter

Top Applicants

Top 10 applicants by patent filingsfor class F16, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SCHAEFFLER TECHNOLOGIES & COMPANY DE 22,817
  2. ZAHNRADFABRIK FRIEDRICHSHAFEN DE 10,523
  3. HYUNDAI MOTOR COMPANY KR 7,933
  4. ROBERT BOSCH DE 7,059
  5. KIA MOTORS CORPORATION KR 4,867
  6. SKF SE 4,729
  7. TOYOTA MOTOR CORPORATION JP 4,111
  8. FORD GLOBAL TECHNOLOGIES US 3,838
  9. GM GLOBAL TECHNOLOGY OPERATIONS US 3,575
  10. TOYOTA MOTOR CORPORATION 3,499