Zf Lemforder Metallwaren Ag

Zf Friedrichshafen Ag

Lemforder Metallwaren Ag

Zf Lemföfder Metallwaren Ag

Jörg Meyer

Andreas Giefer

Ludger Rake

Wolfgang Kliemannel

Michael Völz

Klemens Meyer

Jan Szekeres-Kriselius

Dietmar Otto

A push-button device () is provided for actuating a technical system (), especially in a motor vehicle. The push-button device () comprises at least one push button () as well as a holding device (). The push button () is arranged in the holding device () and can be moved between a neutral position and an actuation position. The push-button device () is characterized according to the present invention in that a flexible cable device () for signal transmission is arranged between the push button () and the technical system ().

Push button with cable

An actuating device for a technical system, especially for selecting gears of a shift-by-wire speed-change gear. The actuating device includes an actuating element (), which is movable in relation to a base area (), with at least two switching positions. At least one additional switching element (), which acts on a signal transmission () with a signal transmitter (), is arranged at the actuating element (). The additional switching element () and the signal transmitter () are connected by a mechanical transmission element. However, the signal transmitter () is connected to the base area () of the actuating device. The present invention makes it possible to embody a robust additional switching element, which is protected from disturbances, at an actuating element. Mobile and hence susceptible cablings to the additional switching element, which were hitherto necessary, are eliminated.

Actuating device with an additional switching element

A parking brake device for motor transmissions, especially automatic transmissions has a parking brake pawl () with an actuating or adjusting device () for engaging and disengaging the pawl () as well as a holding device for securing the parking brake pawl () in the disengaged position. The holding device includes a toggle mechanism () that can be brought from a first, stretched position, in which the parking brake pawl () is fixed in the disengaged position, into a second, bent position, in which the parking brake pawl () can be engaged. This presents a reduction of the design effort, an improvement of robustness and resistance to different ambient conditions with no auxiliary energy requirement for maintaining the securing action for the parking brake pawl and also minimal releasing forces for releasing the parking brake securing.

Parking brake device for motor vehicle transmissions

An actuating device for selection on shift steps of a gear changing transmission. The actuating device comprises a flexible gear selection device () with at least two drive step positions, a park lock position and an additional park lock-actuating device () for activation of the park lock. When the gear selector device () moves out of the park lock position, the gear selector device () becomes disengaged while movement of the gear selector device () from one of the drive step positions into the park lock position, or beyond the previous park lock position, does not engage the park lock. Engagement of the park lock is only achieved by actuating the additional park lock-actuating device (). This improves the safety and provides intuitive shifting between the different drive step positions without the need to view the gear selector device. The unintended engagement of the park lock is precluded.

Actuating device for selecting fixed gear ratios of a gear changing transmission

An operating device for a vehicle with an automated transmission and an electrically actuated parking brake system. The device includes a mechanical actuating element for inputting operating commands from the user and a control unit for converting the operating commands into control signals for the transmission and the parking brake system. The actuating element has at least first and second successive stable positions, a neutral position and a return position. In the first stable position, an operating command is generated for the parking brake system to actuate the parking brake device and, in the second stable position, an operating command is generated for the transmission to actuate the parking lock device. The actuating element combines two different actuating elements into an operating device which enables the driver to choose whether, besides activation of the parking brake system, he wishes to additionally engage the parking lock system associated with the transmission.

Operating device for a vehicle having an automatic transmission and an electrically actuated parking brake system

A shifting device is provided for a vehicle transmission with a selector lever pivotable within a shifting device housing about at least one axis of rotation for selecting gears defined within the vehicle transmission. A shift position of the selector lever is assigned to at least one gear. A locking device for the individual shift positions of the selector lever can be released as a function of given general data of the state of motor vehicle components such as the pedal mechanism and the engine. The locking device has a locking element displaceable by the selector lever analogously to the individual shift positions of the selector lever. The locking element has a plurality of locking devices, which correspond to the individual shift positions and which can be brought into a locking position and an unlocking position by at least one actuating device.

Shifting device for a vehicle transmission

An actuating device for selecting shift positions of a shift-by-wire gearshift transmission. The actuating device comprises a selector lever that is movable between stable lever positions from at least one drive mode position to a parking lock position, a detent device with a spring-loaded detent element, a detent guide-plate and a separating device with an actuator-operated thrust wedge. The detent element and the detent guide-plate can be moved by the thrust wedge from a first position, in which the detent element engages in a shift track of the detent guide-plate, to another second position in which the detent element is disengaged from the shift track of the guide-plate. The actuating device enables automatic return of the selector lever to the parking lock position and thus provides the driver with correct visual and tactile feedback about the actual shift status of the transmission.

Actuating device with selector lever return

An actuating device for selecting shift positions of a shift-by-wire gear shifting transmission. The actuating device comprises a selector lever that may be moved between at least a drive position and a parking lock position, the lever having stable selector lever settings, and a locking device for locking the selector lever in the parking lock position. The locking device comprises an actuator device such that the selector lever may be moved from the drive position into the park position by way of the locking and actuator devices. The actuating device makes it possible that the position of the selector lever of the actuating device matches the actual shifting state of the transmission at all times, and thereby offers reliable optical and tactile feedback for the driver of the actual shifting state of the transmission and may also serve as a mechanical emergency actuator for the parking lock.

Actuating device having a selector lever actuator

An actuating device for motor vehicle transmissions, especially for automatic transmissions has a selector lever (), a transmission structure for sensing and transmitting the shift commands from the actuating device to the motor vehicle transmission, as well as a hinge structure with a four-bar mechanism () in which the selector lever () is mounted in such a way that it can perform shifting motions. The actuating device presents a small space requirements for installation with good ergonomic properties, good force-displacement curve at the selector lever qualities, as good sensing and signal transmission aspects. Visual shift gates and gear shifting gates can also be embodied at actuating devices of very compact design.

Actuating device for motor vehicle transmissions

An actuating device () for a technical system, especially for selecting gears of a shift-by-wire speed-change gear includes an actuating element () with at least two shift positions and a locking device (). The locking device () has at least one actuator () driven with auxiliary energy and is used to reduce the shifting path of the actuating element () or to lock the actuating element (). The actuator () has at least three different shifting states to make it possible to embody the necessary locking functions of the actuating lever with a reduced number of actuators and hence with a comparatively low design effort. Space, weight and costs can thus be saved.

Actuating device with shift lock

A device is provided for transmitting a biaxial pivoting movement of a gearshift lever () into a planar movement of a gearshift lever position transmitter with a guide element () for limiting the movement of the gearshift lever position transmitter to a movement in a noncurved plane. The device includes a transmission element () for transmitting a pivoting movement of the gearshift lever () about a first pivot axis () into a pivoting movement of the gearshift lever position transmitter in a noncurved plane, and with a hinge joint for converting a pivoting movement of the gearshift lever () about a second pivot axis () into a linear movement of the gearshift lever position transmitter in the noncurved plane. The positions () of the gearshift lever () can be detected in the noncurved plane.

Movement converter for an isodistant shifting sensor system

A locking device () includes an adjustable bracket () provided with a recess (), a stationary contour () with a contact surface (), a pin (), which is arranged movably in the recess () and on which an axial spring force generated by a compression spring () acts. A pin head () projects from the recess () of the bracket () and has a contact pair with the contact surface (). At least one centering device () is provided between the pin () and the bracket (). The locking device has a centering device (), which has an elastically deformable ring (). The ring () is arranged between the pin () and the bracket () within the recess () and is displaceably arranged within the recess (). The ring () has a surface () with a cross section tapering against the direction of the force of the compression spring (). The surface is in contact with a complementary surface () at the pin ().

Locking device

A shifting device for the powerless transmission of shift commands to an automatic transmission of a motor vehicle, with a housing and with a gearshift lever () mounted pivotably in a shift gate, wherein the shifting device has a first and a second shift stop () for the gearshift lever (), each shift stop comprising a housing-side stop () and a gearshift lever-side stop (), with a detection device for these two shift positions (), and an inoperative position (), into which the gearshift lever () pivots by itself from a deflected shift position (), driven by a restoring force, is located between these shift positions (). An actuating device () at the gearshift lever (), disengages gearshift lever-side stop () of shift position () and the gearshift lever () can be deflected to another shift stop () beyond the shift position ().

Shift-by-wire shifting with P position

A shifting device for the preferably powerless transmission of shift commands to a fully automatic or semi-automatic transmission of a motor vehicle and a frame and/or housing and a gearshift lever mounted pivotably along a shift gate. A first shift stop and a second shift stop are provided for the gearshift lever which each define a shift position for the said gearshift lever. At least one detection device is provided for detecting the shift position(s). An inoperative position is provided into which the gearshift lever pivots back by itself from the deflected shift position, driven by a restoring force. The shifting device has an actuating device, which can countermand a shift stop, so that the gearshift lever can be pivoted beyond the shift position(s) defined by this shift stop.

Growing community of inventors

Wagenfeld, Germany

Jörg Meyer