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US 11,401,987 B2Granted
Control of the engagement rate of a clutch
AssigneeTransmission Cvtcorp Inc.
InventorsJonathan Guerin, Jean-Francois Dionne, Daniel Girard
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Abstract
The control of the engagement rate of a clutch in a driveline is described herein. The clutch engagement rate is determined using at least one parameter of the driveline. An illustrative example where the parameters include the slipping level of the clutch and the rotational speed at the output of the clutch is described herein.
Claims7
A driveline for a vehicle, comprising:
- a prime mover including an output;
- a transmission having an input connected to the output of the prime mover and an output;
- a clutch having an input connected to the output of the transmission and an output connectable to a load;
- an arrangement quantifying the slippage level between the input and the output of the clutch;
- a further arrangement quantifying the rotational speed at the output of the clutch;
- a main controller configured to calculate a first clutch engagement rate as a function of the slippage level of the clutch and a second clutch engagement rate as a function of the rotational speed at the output of the clutch, the main controller selecting the lowest clutch engagement rate;
- and
- a clutch controller so associated to the main controller as to receive a torque allowed to pass value and the lowest clutch engagement rate therefrom;
- the clutch controller being so connected to the clutch as to control the clutch to reach the torque allowed to pass value at the lowest clutch engagement rate.
6 more elements
Dependencies are inferred from the claim text.