Zf Friedrichshafen Ag

Feintool International Holding Ag

Tobias Miller

Peter Ziemer

Matthias List

Julia Klein

Bernd Austermann

Armin Gierling

Josef Haupt

Markus Herrmann

Angelika Ebert

Monika Rößner

Florian Weinl

Stefan Brom

Eberhard Biermann

Ulrich Schlatter

Dirk Leutheuser

Andreas Geiger

Oliver Angele

Christian Staiger

Florian Lanz

Martin Meyer

Franz Brugger

Adalbert Schoida

Tobias Dittrich

Marco Soldati

Gilbert Fuerer

Arthur Strehlau

Sebastian Deeg

Andre Willburger

Juergen Igelmaier

Reinhard Schneider

Armin Rasch

Thomas Breitweg

Karl-Hermann Katzoreck

Tobias Schlosser

Frank Paulitschke

Michael Linkens

Gilbert FÜRER

Ralf VÖLKL

Bernd Wiedenmann

A parking lock system for motor vehicle transmissions has a locking pawl pivotable between an interlock position and a release position, and a first actuating element movable between a disengaged position and an engaged position, where movement of the first actuating element induces pivoting of the locking pawl. The system includes a second actuating element movable between an actuating position and an element release position, the second actuating element contacting and moving the first actuating element from the engaged position into the disengaged position when moving from the actuating position into the element release position. The system includes a spring element that moves the first actuating element into the engaged position when the second actuating element moves into the actuating position, and allows the first actuating element to move relative to the second actuating element into the disengaged position when the second actuating element is in the actuating position.

Parking lock system for a vehicle transmission

Parking detent pawls are known which are suitable for securely holding a vehicle in a parked state. The aim of the invention is to provide a detent pawl for a parking lock which is characterized by a high degree of operational reliability. For this purpose, a method is proposed for producing a detent pawl with a latching section for engaging into a locking toothing, a support section for rotatably supporting the detent pawl about a rotational axis, and a locking section for resting against a locking bolt which can be moved along the detent pawl, having the following steps: providing a detent pawl blank; providing a shaping tool with a shaping contour, said shaping contour having a load section and a guide section; and shaping the detent pawl blank in a shaping direction by means of the shaping tool, wherein a depression for receiving the locking bolt is produced on the locking section, the load section defines a load region of the depression for supporting the locking bolt in a locking position, and the guide section defines a guide region of the depression for guiding the locking bolt during an actuation movement.

Method for producing a detent pawl

An emergency release of a parking lock of a vehicle transmission arranged in a transmission housingincludes an actuating element of an actuator for actuating the parking lock is drivable so as to be linearly movable between an interlock position and a release position. The emergency release leveris pivotable away from a normal position past an emergency release position into an installation position and, in a second end region, has two guide projections, which are parallel to each other and extend radially toward the pivot pin, and between which a securing projection, which is fixedly connected to the transmission housing, projects when the emergency release leveris in the normal position and in the emergency release position. In the installation position of the emergency release lever, the securing projectionis located outside the area between the two guide projectionson the emergency release lever

Emergency release of a parking gear

A parking lock includes a locking pawl () and an interlocking element () arranged on a connecting bar () to a selector lever (). The end of the connecting bar () facing away from the interlocking element () is articulatedly connected to the selector lever (). A hydraulically actuatable actuator () includes two pistons () provided for disengaging the parking lock. During normal operation, a detent device (), which is actuatable by an electromagnet (), locks the first piston () in a piston position corresponding to an engaged condition (P_ein) or a disengaged condition (P_aus). Without requiring activating the electromagnet () to release the detent device (), the parking lock, during normal operation, is manually disengagable with an emergency disengagement device () acting upon the second piston () and is manually engagable with an emergency engagement device () acting upon the detent device ().

Parking lock for an automatic transmission in a motor vehicle

A drive train unit (HY, G) for a motor vehicle includes a first shaft (TW), a second shaft (PW), and a third shaft (AN). The first shaft (TW) is rotatably mounted at an inner diameter of the second shaft (PW) with a first bearing (L). The second shaft (PW) is rotatably mounted at an inner diameter of the third shaft (AN) with a second bearing (L, L). A lube oil feed to the first bearing (L) and the second bearing (L, L) takes place through a bore hole (B) arranged in the first shaft (TW). An oil baffle chamber (S) is formed at an inner surface of the second shaft (PW) and includes a first outflow (S) and a second outflow (S). A drive train for a motor vehicle may include such a drive train unit (HY, G).

Drive train unit and drive train for a motor vehicle

A parking lock arrangement with an actuating device for engaging and disengaging a parking pawl () for interlocking and releasing a parking interlock gear () includes an axially movable actuating rod () with an axially displaceable actuating element () on an end facing the parking pawl (). During the engagement and disengagement of the parking lock, an actuating contour () of the actuating element () is in contact with an actuating zone () of the parking pawl () and with a support contour () of a housing-affixed guide element (). The actuating contour () is designed to be rotationally symmetrical with respect to a longitudinal axis () of the actuating element () and extends along this longitudinal axis (). The actuating contour () is a circular arc as viewed in the direction of the longitudinal axis () of the actuating element ().

Parking lock arrangement

A parking lock includes a locking pawl () and an interlocking element (). The locking pawl () is pivotably mounted on a pawl pin () and engageable with a parking interlock gear (). The interlocking element () is arranged on a connecting bar () to a selector disk (), spring-loaded with a spring element (), and clampable between the locking pawl () and a guiding plate (). An end of the connecting bar () facing away from the interlocking element () is articulatedly connected to the selector disk (). An engaging piece () of the selector disk () is operatively connected to a parking lock actuator (). The connecting bar () is arranged below the locking pawl () such that a motion plane of the connecting bar () is parallel to a motion plane of the locking pawl () and perpendicular to the pawl pin ().

Park lock for an automatic transmission in a motor vehicle

An actuating device () for manually releasing a parking lock device () of a transmission () includes a manual actuator () and a pivotably mounted actuating shaft (). The actuating shaft () includes a shaft outer section (), to which the manual actuator () is attached, and includes a shaft inner section (), on which a parking disk () is mounted. The parking disk () includes a recess (), and on which an engaging piece is mounted, which includes a projection () engaging into the recess (). The engaging piece is an engaging lever () which includes a foot section () for mounting the engaging lever () on the shaft inner section () of the actuating shaft (), and includes the projection () on a head section () positioned opposite a foot section (). An associated parking lock device (), transmission (), and assembly method are also provided.

Parking interlock device, transmission including said parking interlock device, and related assembly method

An axial mounting of the planetary gearwheels of a planetary gearset having a sun gear that meshes with at least one planetary gearwheel mounted on a planetary bolt that is supported on the planetary carrier. The at least one planetary gearwheel meshes with a ring gear. At least one check-plate, which has a hole for the planetary bolt and which is positioned on one side of the planetary gearwheel between the planetary gearwheel and the planetary carrier, is associated with each planetary gearwheel. The check-plate is completely flat and is axially symmetrical relative to its longitudinal and transverse axes. The at least one check-plate has two wings that extend in the longitudinal direction, which are positioned in recesses formed in the planetary carrier, when the check-plate is in the installed condition, to secure the check-plate against rotation. The check-plate is fixed relative to the planetary carrier.

Axial bearing of pinion gears of a planetary gear set

A transmission parking lock device having a gearwheel with teeth and gaps and a pawl having a pawl tooth. The gearwheel rotates and the pawl pivots about axes that are parallel to each other. The gearwheel teeth each have a first contour and tooth flanks with respect to rotation of the gearwheel. The pawl tooth has a second contour and tooth flanks relative to the rotation of the gearwheel, and the gearwheel has an outer radius. The gearwheel and pawl are kinematically linked by a linear relationship between the pivoting and rotational angles. The first and/or second contour are at least partially circular with a radius of the outer radius of the gearwheel, and the teeth and/or the pawl tooth have, in the area of the front tooth flank of the gearwheel or parking lock pawl, a crown tip relief relative to the outer radius of the gearwheel.

Parking interlock device for an automotive transmission

A parking lock gear () for a parking lock arrangement for locking an output shaft of a transmission of a vehicle has teeth (). An annular element () is fixed to the parking lock gear () and has outer teeth () which engage an actuated locking pawl.

Parking lock gear for a parking lock arrangement

Growing community of inventors

Waldburg, Germany

Tobias Miller