US 10,634,199 B2 · Method for operating a clutch

Abstract

Operating a clutch assembly of a vehicle drive train, the clutch assembly comprising a clutch with a clutch component that exchanges heat at least indirectly with a medium which is conducted at least partially in the clutch, comprises at least: a) determining an operating point parameter which is representative of a current operating state of the clutch; b) determining a first thermal property parameter of the medium, as a function of the determined operating point parameter; c) determining a second thermal property parameter of the at least one clutch component; d) calculating a component temperature of the at least one clutch component as a function of at least the following three values: a further component temperature of a further clutch component, the first thermal property parameter, and the second thermal property parameter; and e) adapting activation of the clutch as a function of the calculated component temperature.

Claims18

Dependent claims

A method for operating a clutch assembly of a drive train of a vehicle, wherein the clutch assembly includes a clutch with at least one clutch component that exchanges heat at least indirectly with a medium which is conducted at least partially in the clutch, wherein the method comprises at least the following iteratively occurring steps:

a) determining an operating point parameter which is representative of a current operating state of the clutch;
b) determining a first thermal property parameter of the medium, as a function of the determined operating point parameter;
c) determining a second thermal property parameter of the at least one clutch component;
d) calculating a component temperature of the at least one clutch component as a function of at least the following three values:
a further component temperature of a further clutch component, the first thermal property parameter, and the second thermal property parameter;
and
e) adapting activation of the clutch as a function of the calculated component temperature.

4 more elements

An electronic control unit for a vehicle having a clutch assembly for variably distributing torque to different axles of the vehicle, wherein the clutch assembly includes a clutch with at least one clutch component, wherein the electronic control unit which is configured to carry out iteratively at least the following steps:

a) determining an operating point parameter which is representative of a current operating state of the clutch;
b) determining a first thermal property parameter of the medium, as a function of the determined operating point parameter;
c) determining a second thermal property parameter of the at least one clutch component;
d) calculating a component temperature of the at least one clutch component as a function of at least the following three values:
a further component temperature of a further clutch component, the first thermal property parameter, and the second thermal property parameter;
and
e) adapting activation of the clutch as a function of the calculated component temperature.

4 more elements

Dependencies are inferred from the claim text.

Method for operating a clutch

Life of this patent

Method for operating a clutch

Life of this patent

Abstract

Claims18