Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Other

Luk Getriebe Gmbh

Thomas J&auml;ger

Martin Vornehm

Klaus Henneberger

Martin Zimmermann

Holger Stork

Klaus K&uuml;pper

J&uuml;rgen Eich

Reinhard Berger

Michael Salecker

Alexander Schweizer

Georg Schneider

Martin Eckert

Ralf Enderlin

Wolfgang Reik

Robert Fischer

Gunter Hirt

Mario Jung

Volker Kretz-Busch

Alexander Renfer

Jens Schn&auml;bele

J&uuml;rgen Gerhart

The method is designed for a motor vehicle equipped with wheel rpm sensors and means to determine whether the wheels are either rolling normally or locked or spinning without adhesion. The method employs plausibility routines to determine whether an abnormal wheel rpm sensor signal is due to locking or spinning of the wheel or whether it is due to a sensor failure. In case that an abnormal condition is detected, an alternate strategy is initialized to determine wheel rpm rates and perform control functions that are based on wheel rpm rates.

Method of operating a motor vehicle

Method and apparatus for controlling a vehicle with a gear-shift transmission

The comfort level gear shift motor vehicle with an automated gear-shifting transmission is determined by shift parameters, which are dependent on driving parameters and on a shift program mode. The shift program mode identified through a characteristic parameter, which can vary a range of parameter values corresponding to a range of shift program modes. The method has the steps of detecting current values the driving parameters, detecting a current value of the characteristic parameter, determining respective minimum and maximum values that each of said shift parameters can assume within the range of characteristic parameter values as a function of the current driving parameter values, calculating actual shift parameter values as intermediate values between said maximum and minimum values for each of said shift parameters based on said current value of the characteristic parameter, and performing the gear shift with the actual shift parameter values.

Method and apparatus for changing the comfort level of gear shifts in an automated transmission of a motor vehicle

In a method and apparatus for diagnosing a malfunction in a clutch actuator of a motor vehicle, the actual position of the clutch actuator is measured by a position sensor. Simultaneously, an estimated position of the clutch actuator is calculated by an emulation unit that emulates the function of the clutch actuator. Malfunctions of the clutch-actuator are diagnosed by comparing the actual, measured position to the estimated position.

Method and apparatus for diagnosing a malfunction of a clutch actuator

Method of keeping track of the operating position of an actuator in an automated gear-shift transmission

A transmission system including a shift mechanism for operating and controlling the transmission system. To automatically detect geometric characteristic values of the transmission system or of the shifting device a selector motor and a shift motor actuate a selector finger that is displaceably mounted in a selection-shift-passageway layout. Starting from an initial position whose coordinates within the selection-shift-passageway layout are unknown, the selector finger is displaced in the directions of shifting and in the directions of selection in order to detect paths of movement in the direction of selection or shifting. The selector finger is repeatedly displaced to establish the maximum paths of movement until the predetermined transmission geometric characteristic values are completely detected. Also disclosed are a control device for controlling a transmission system that includes a shift mechanism, and a method for controlling such a transmission system.

Transmission mechanism comprising a shifting device

A method of regulating the position of a clutch actuator in a vehicle employs the concept of adapting the servo-loop parameters of a position controller of the clutch to different operating conditions of the vehicle, as well as the concept of applying and continuously adapting a bias current of the actuator motor in order to avoid or minimize the incidence of a hunting or after-regulation behavior of the control loop and to thereby minimize the energy consumption of the actuator motor.

Method of regulating the position of a clutch actuator

Method of operating a motor vehicle, and motor vehicle equipped to perform the method

A method for influencing a shift process connected with a change in transmission ratio when driving a motor vehicle that has a set of driven wheels subject to longitudinal and transverse forces, the method including detecting whether or not the vehicle is traveling around a curve and, if doing so when the shift process is in progress, influencing the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process. Also disclosed is an apparatus for performing the disclosed method including a detector for detecting whether or not the vehicle is traveling around a curve and a transmission ratio shifter responsive to the detector that, if the vehicle is traveling around a curve when the shift process is in progress, performs the shift process so as to decrease the longitudinal forces that act on the driven wheels as a result of the shift process.

Method of and apparatus for influencing the shifting of transmissions in the power trains of motor vehicles

Growing community of inventors

Meckenbeuren, Germany

Thomas Jäger

Growing community of inventors

Meckenbeuren, Germany

Thomas J&auml;ger

Thomas Jäger