Arrangement for adjusting the clutch slip of a friction clutch arranged on the output side of a motor vehicle engine
AssigneeMercedes-Benz AG
InventorGunter Juergens
Life of this patent
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Abstract
In an arrangement for adjusting the clutch slip of a friction clutch arranged on the output side of an engine of a motor vehicle, a control variable, formed as a function of the operating point of the engine and of an associated set point value for the clutch slip read out of a characteristic diagram, is applied directly to a clutch control element which adjusts the clutch slip.
Claims7
An arrangement for adjusting a clutch slip of a friction clutch arranged on an output side of an engine of a motor vehicle, comprising:
- a clutch control element having a control variable, said clutch control element determining said clutch slip, said control variable being formed through a process wherein both set point values are specified for the clutch slip which are dependent on torque and speed of said engine, said set point values being written into a first characteristic diagram, and actual values are used for parameters of said first characteristic diagram;
- and
- an open control loop in which said control variable is applied to said clutch control element irrespective of said actual values of said clutch slip.
A process for adjusting clutch slip of a friction clutch arranged on an output side of an engine of a motor vehicle, the process comprising the steps of:
- specifying set point values for the clutch slip which are dependent upon the torque and speed of the engine;
- writing said specified set point values into a first characteristic diagram;
- record and using actual values as parameters for the first characteristic diagram;
- forming a control variable for a clutch control element which determines the clutch slip;
- and
- applying said control variable to the clutch control element in an open control loop, irrespective of the actual values of the clutch slip.
Dependencies are inferred from the claim text.