Zf Friedrichshafen Ag

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Joerg Meyer

Andreas Giefer

Ludger Rake

Sascha Rosentreter

Rainer Haevescher

Hans-Joachim Moersdorf

Andreas Tobola

Sergey Ershov

Robert Couronné

Hans-Josef Gassmann

The disclosure provides a device for adjusting a movement of an operating element for an automatic transmission of a vehicle. The device comprises a rotatable shaft and a bearing apparatus for the supporting of the operating element. At the same time, by means of the operating element, the bearing apparatus can be moved with the operating element in relation to the shaft toward a first movement axis and between a resting position and a deflecting position toward a second movement axis. The device is characterized by a blocking element for blocking a movement of the bearing apparatus from the resting position to the deflecting position. An actuating element for actuating the blocking element and a resetting element for resetting the bearing apparatus from the deflecting position to the position are arranged on the shaft.

Device and method for adjusting motion of an operating element for an automatic transmission of a vehicle and shifting device for shifting an automatic transmission of a vehicle

The invention concerns a measurement device to capture at least one vital parameter of a person in a motor vehicle with a steering wheel. The measurement device includes a finger sensor device with an optical sensor device, where the finger sensor device is attached to the steering wheel in the transition zone between a steering wheel spoke and the hub of the steering wheel.

Measurement device to capture vital parameters

An actuating device is provided that includes an actuating element () with at least three switching positions. The actuating device () can be deflected starting from its basic positions at least in one direction into an intermediate switching position for selecting an operating state of the technical system. For selecting at least one other operating state of the technical system, the actuating element () can be deflected, starting from an intermediate switching position, into at least one other switching position that is located farther away from the basic position. The undesired jumping of the actuating element over intermediate switching positions, during switching, is effectively prevented from occurring. An intuitively detectable tactile feedback of the switching state of the actuating element or of the state of the system is provided.

Actuating device with rotary switch

An actuating device is provided for selecting gears of an automatic transmission. The actuating device includes a rotatable actuating element as well as a crank arrangement () with stop elements (Mn) for limiting the rotation angle of the actuating element to a total switching angle. The actuating element may assume n switching positions within the total switching angle. The crank arrangement () has a separate stop element (Mn), which can be activated in a controlled manner, and a crank area () for each of the n switching positions. The crank area () comprises at least one crank segment (A, B, C, . . . ), between the end stops of which a stop element (Mn) can assume one of n relative positions, which correspond to the n switching positions. The crank segments (A, B, C, . . . ) are arranged distributed over the total crank angle such that all n relative positions are occupied by the n stop elements (Mn) for each relative switching position (, . . . ). The actuating device makes possible, analogously to purely mechanical actuating elements with discrete locking position, the reliable actuation of complex technical systems. At the same time, intuitively detectable and especially tactile feedback, which is unambiguous under all operating conditions, is achieved for the actual state of the system.

A control device is provided for a technical system (), e.g. for a shift-by-wire vehicle transmission. The control device includes a control (actuating) element, e.g. a rotary knob (), with at least two shifting positions. The control element (), itself, can rotate without limitation, whereas the control device has at least one stop device (), which can be adjusted in a controlled manner and which limits the angle of rotation (W) of the control element ().

Control device

A shifting device is provided for an automatic transmission of a motor vehicle with a first automatic shift gate and with a second tipping gate for a manual, stepwise shifting operation about a middle position. A selector lever can be pivoted about a first shift gate axis into the automatic shift gate and the tipping gate and about a second selector lever axis within the shift gates. The selector lever axis and the shift gate axis are arranged at right angles to one another in a shifting device housing. A connection member is provided for transmitting the pivoting motion of the selector lever in the automatic shift gate to a coupling element to the automatic transmission. The connection member is fixed in a recess of the shifting device housing when the selector lever is pivoted about the shift gate axis into the tipping gate, in which the connection member () is fixed rotatably in an axis of rotation () at a pivot lever (), which is rotatably mounted on a holding pin (), which is arranged in parallel to the selector lever axis () at the selector lever housing (). The pivot lever () is mounted with a pin () in a holding device () of the shifting device housing () when the selector lever () is in the automatic shift gate (A).

Shifting device for an automatic transmission of a motor vehicle

An actuating device is provided for a technical system, especially for selecting gears of a shift-by-wire speed-change gear. This includes a push button arrangement with at least one push button () as well as a device () generating electrical control signals for transmission to the technical system. The actuating device has a separately controllable blocking device (), each associated with at least one push button or all push buttons of the actuating device. The blocking device () mechanically blocks the particular push button () and can be driven by auxiliary energy. This provides an unambiguous tactile feedback on the state of the system or the admissibility of the shifting operation when the push buttons are pressed. Hazards that arise from unrecognized states of the system, inadmissible shift commands or operating errors, defects on the system or non-functioning signal transmission between the actuating device and the system are eliminated.

Growing community of inventors

Wagenfeld, Germany

Joerg Meyer