Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Other

Luk Lamellen Und Kupplungsbau Gmbh

Luk Getriebe-systeme Gmbh

Klaus K&uuml;pper

Martin Vornehm

Klaus Henneberger

Thomas J&auml;ger

Alexander Schweizer

Ralf Enderlin

J&uuml;rgen Eich

Reinhard Berger

Martin Zimmermann

Michael Salecker

Robert Fischer

Thomas Pfund

Stefan Winkelmann

Marc Hauptmann

Jens Schn&auml;bele

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

Specific shift positions of an electrically actuated vehicle transmission, such as first to fifth, neutral and reverse gears, are detected by monitoring one or more characteristic electrical variables, e.g., actuator currents, during a shift movement of the transmission and by correlating increased or decreased levels of current with the arrival at or passage through the specific shift positions.

Method of operating a vehicle transmission

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

A motor vehicle has an automated clutch ( ) and/or an automated transmission ( ) that are operated by an actuator ( ) through control commands of a control device ( ). At least some of the control commands depend on sensor input indicating whether or not the brakes of the motor vehicle are applied. To detect the actuation of the brakes, the motor vehicle uses two brake sensors or switches ( ) rather than only one, thereby providing an additional margin of safety in the operation of the vehicle.

Motor vehicle with an automated torque-transfer system

A vehicle securing system to prevent a motor vehicle having an automated transmission with a clutch between the transmission and the engine from rolling away after turning off the ignition. The automated transmission includes a plurality of gears and a control device that receives signals representative of the vehicle's operating parameters and that processes them as well as engages the driver-selected transmission gear. The control device is operative after ignition shutoff for a predetermined time period, or is operative after ignition shutoff by operation of a brake pedal, and effects the engagement of a selected gear when the vehicle is moving at a speed that is lower than a predetermined threshold speed value.

Vehicle securing system

A motor vehicle ( ) has an engine ( ), a clutch ( ), and a transmission ( ) with a shift lever ( ). A sensor ( ) arranged at the shift lever ( ) detects movements of the shift lever or forces applied to the shift lever. When the sensor ( ) detects a movement or force, the activity is interpreted as a signal that the driver intends to shift gear. A detector system of the motor vehicle detects conditions such as the presence and magnitude of a mechanical play which can affect the process of shifting gears in the transmission ( ).

Motor vehicle with a device that recognizes an intention to shift gear

The positions of a gear selecting lever in a combined automatically and manually shiftable transmission which is installed in the power train of a motor vehicle are monitored by a first sensor which transmits signals to a control circuit serving to initiate the operation of an actuator for the gear selecting lever. Certain positions of the lever are monitored and reported to the control circuit by one or more additional sensors which influence the operation of the actuator in the event of failure of the first sensor. One of the additional sensors can monitor a first range of positions of the lever including the position when the transmission is shifted into reverse gear, and another additional sensor can monitor a second range of positions of the lever including the position when the transmission is in neutral gear.

Growing community of inventors

Bühl, Germany

Klaus Küpper

Growing community of inventors

Bühl, Germany

Klaus K&uuml;pper

Klaus Küpper