US 5,190,130 A · Process for regulating a clutch

Abstract

In a process for regulating a clutch which is situated within a power train between an input shaft (22) and an output shaft (24), the rotation-rate differences .DELTA..omega. of the power train are detected via a sensor device. With the use of regulating equipment and depending on a control variable x, a correcting variable y which affects the speed difference .DELTA.n is controlled. To provide regulating equipment at favorable construction cost, the regulating equipment has a comparator unit (51) in which an actual value x of the rotation-rate difference .DELTA..omega. in the power train behind the clutch (21) is compared with a preset fixed limited value w.sub.const, the rotation-rate difference .DELTA..omega. being limited to the limit value w.sub.const by changing the correcting variable of the clutch (21) upon reaching or exceeding the limit value w.sub.const.

Claims24

Dependent claims

A process for regulating a clutch situated in a power train between an input and an output shaft to reduce unwanted noise occurring therein, in which a sensor device (55, 56) is provided for detecting a rotation-rate difference .DELTA..omega. in the power train and regulating equipment (52), depending upon a control variable detected by the sensor device, controls a correcting variable y to be fed to the clutch to control a speed difference .DELTA.n to reduce unwanted power train noise, the process comprising the steps of:

providing the regulating equipment (52) with a comparator unit (51), and comparing with said comparator unit (51) an actual value x of the rotation-rate difference .DELTA..omega. detected for the output shaft of the power train with a limit value w.sub.const, and
limiting the rotation-rate difference .DELTA..omega. to the limit value w.sub.const, upon the equal value x at least of reaching and exceeding the limit value w.sub.const, by changing the correcting variable y of the clutch (21).

A process for regulating a clutch situated in a power train of a motor vehicle to reduce unwanted droning and buzzing noise occurring therein, the clutch being situated in the power train between an input shaft (22), connected with an internal combustion engine (47), and an output shaft (24), connected with a transmission unit (48), including a pickup device for detecting a speed difference .DELTA.n of the input and output shafts (22 and 24), a sensor device for detecting a rotation-rate difference .DELTA..omega. and regulating equipment (64), depending upon a control variable x measured by the pickup device, controlling a correcting variable y to be fed to the clutch (21) to control the speed difference .DELTA.n to reduce unwanted power train droning and buzzing noise, the process comprising the steps of:

feeding operational parameters of the internal combustion engine (47), which cause the rotation-rate differences .DELTA..omega. in the power train, to a first pickup (63) coordinated with the regulating equipment (64) and, based on the operational parameters, the first pickup (63) generating a first desired value w of the speed difference .DELTA.n;
feeding the first desired value w and the control variable x to a comparator unit (62) of the regulating equipment (64);
and
measuring and feeding the rotation-rate difference .DELTA..omega. to a second desired-value pickup (66), and
feeding a second desired value w, depending upon whether the rotation-rate difference .DELTA..omega. is one of below, above or at a limit value of the rotation-rate difference .DELTA..omega., to one of the comparator unit (62) and to the first pickup (63) adaptively controlling the first desired value w thereof.

2 more elements

Dependencies are inferred from the claim text.

Process for regulating a clutch

Life of this patent

Process for regulating a clutch

Life of this patent

Abstract

Claims24