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US4660697A Expired / Lapsed US ⏱️ 0.0 years remaining

Slip clutch device control method

Assignee: Mitsubishi Motors Corp
•
Filing: 1985-08-12
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Granted: 1987-04-28
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Expires: 2005-08-12
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Abstract

Abstract In the control of the slip in a slip clutch device for joining and separating an input shaft and an output shaft, the improvement comprises detecting a slip in the clutch, calculating a time change in the said slip and calculating a slip deviation between a preset target slip and the said slip, and feedback-controlling the engaging force of the clutch in proportion to the quantity of the time change in the said slip, obtained from these calculations, and the slip deviation so that the slip in the clutch is caused to get near to the target slip. According to the slip clutch device control method of this invention, the hunting in slip can be prevented from being caused even when the μ-v characteristics of a clutch facing is worsened, and a shock applied upon the clutch at the start of its operation can be reduced in a large extent.

Inventors

  • 👤 Haruaki Yoneda
  • 👤 Takeo Hiramatsu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 13:41
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/50; F16H59/56; B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/02; B60W10/10; B60W30/1819; F16H59/36; F16H59/46; F16H61/00; F16H61/14; F16H61/143; F16H2059/465; F16H2059/467; F16H2061/145; F16H63/00; F16H63/40; F16H63/46

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 98 words
A slip clutch device control method for controlling the slip in a clutch for joining and separating an input shaft and an output shaft, comprising the steps of: detecting a slip in the clutch; calculating a time change in the said slip; calculating a slip deviation between a predetermined target slip and the said slip; and feedback-controlling the engaging force of the clutch in proportion to the calculated quantity of the time change in the said slip and the calculated slip deviation so that the slip in the clutch is caused to get near to the target slip.
Claim 2
Dependent Claim 98 words
A slip clutch device control method for controlling the slip in a clutch for joining and separating an input shaft and an output shaft, comprising the steps of: detecting a slip in the clutch; calculating a time change in the said slip; calculating a slip deviation between a predetermined target slip and the said slip; and feedback-controlling the engaging force of the clutch in proportion to the calculated quantity of the time change in the said slip and the calculated slip deviation so that the slip in the clutch is caused to get near to the target slip.
Claim 3
Dependent Claim 55 words
A slip clutch device control method as set forth in claim 1, further comprising the step of: calculating a corrected slip from the calculated quantity of the time change in the said slip and the calculated slip deviation so that the engaging force of the clutch is corrected in proportion to the calculated corrected slip.
Claim 4
Dependent Claim 50 words
A slip clutch device control method as set forth in claim 2, in which the said step of calculating the corrected slip, a coefficient on the quantity of the time change in the said slip is set so as to reduce in accordance with the increase in the slip deviation.
Claim 5
Dependent Claim 44 words
A slip clutch device control method as set forth in claim 2, in which the said step of calculating the corrected slip, a coefficient on the slip deviation is set so as to increase in accordance with the increase in the said slip deviation.

References Cited (Backward Citations)

US4004417A Cited
US4457411A Cited
US4468988A Cited
US4529072A Cited
US4577737A Cited
US4582185A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-27 1990-10-27 1991-04-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-27 1994-10-27 1995-04-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-27 1998-10-27 1999-04-28 $7700.00 Window Closed / Lapsed

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