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Parking lock system for an automatic transmission

A technology of automatic transmission and locking system, applied in the direction of brake safety system, brake, vehicle parts, etc., can solve the problem of high adjustment cost and so on

Active Publication Date: 2011-02-23
ZF FRIEDRICHSHAFEN AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a problem with the locking devices for parking locks shown in the prior art is that the toggle lever has to be adjusted very precisely, since tolerances are almost impossible in the shown embodiment, so in order to realize this embodiment , a correspondingly high adjustment effort must be incurred when manufacturing the parking lock system (in particular the locking device) in order to adapt it to the individual installation situation

Method used

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  • Parking lock system for an automatic transmission
  • Parking lock system for an automatic transmission
  • Parking lock system for an automatic transmission

Examples

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Embodiment Construction

[0029] figure 1 A locking device 1 according to the invention for a parking lock system of an automatic transmission of a motor vehicle is shown in a side view. The Bowden cable 2 is shown, which is directly connected to the positioning of the locking element of the parking lock system on the automatic transmission of the motor vehicle and moves in the longitudinal direction synchronously with the positioning of this locking element. A toggle 3 is fastened to the end of the Bowden wire 2 and consists of a first constrained lever arm 3.1 and a second free lever arm 3.2, wherein the first constrained lever arm 3.1 is movable on one side. Rotationally fixed on a constrained shaft, while the other side is connected to a second free lever arm 3.2 via a freely rotating shaft. A second free lever arm 3 . 2 is rotatably fixed on the end of the Bowden wire 2 .

[0030] exist figure 2 , the toggle lever 3 is located slightly in front of the maximum extension position, wherein overex...

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Abstract

The invention relates to a parking lock system for an automatic transmission of a motor vehicle, wherein: the automatic transmission has an actuator which can disengage a locking element in the automatic transmission, the locking element is held in the locked position by spring force, and a securing device (1) is provided which is connected by means of an actuating element (2) to the locking element and which has a knee lever (3) which can fix the actuating element (2) such that an engagement of the locking element in the automatic transmission can be prevented. The invention is characterized in that the knee lever (3), in an over-extended state, fixes the actuating element (2), wherein a fixed counterbracket (4) is attached on the over-extended side of the knee lever (3).

Description

technical field [0001] The invention relates to a parking lock system for an automatic transmission of a motor vehicle, wherein the automatic transmission has an actuator which can move a locking element in the automatic transmission which is held in a locked position by spring force, A locking device is provided, which is connected to the locking element via the adjusting piece and has a toggle, which fixes the adjusting piece and thus prevents the locking element from being inserted into the automatic transmission. Background technique [0002] Such parking lock systems are required in automatic transmissions of motor vehicles. In the event of a system failure, it prevents locking elements in the automatic transmission from engaging in the drive pinion, so that the transmission does not interfere undesirably in the event of a system failure during driving, for example. At the same time, however, the function of the locking element is designed in such a way that it engages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C1/22F16H63/48B60T1/00
CPCF16H63/3475B60T17/18F16H63/3491F16C1/22F16C2361/65B60T1/00F16H63/00F16H63/48
Inventor M·维尔茨L·拉克A·吉费尔S·罗森特雷特R·克尼希
Owner ZF FRIEDRICHSHAFEN AG
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