Hydraulic automatic parking device

An automatic parking and hydraulic technology, which is applied in the direction of fluid pressure actuators, brakes, brake components, etc., can solve problems such as multiple structural spaces, and achieve the effects of reliable work, compact structure, and large operating force

Pending Publication Date: 2018-01-26
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to overcome this high actuating force, the parking device requires a relatively large construction space

Method used

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  • Hydraulic automatic parking device
  • Hydraulic automatic parking device
  • Hydraulic automatic parking device

Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a hydraulic automatic parking device, which includes a housing 5, a piston cylinder 7, a piston assembly 30 and a locking mechanism.

[0035] A parking gear 6 is installed on the transmission shaft (not shown in the figure) of the vehicle, and the parking gear 6 rotates together with the transmission shaft. The return torsion spring 18 is sleeved on the positioning pin shaft 2, one end links to each other with the pawl 3, and the other end links to each other with the positioning shaft 1.

[0036] The casing 5 can be a separate part or a part of the transmission casing; in this embodiment, a cavity is formed inside the casing 5, more preferably, the cavity is divided into two parts from right to left A first diameter section, a second diameter section, a third diameter section and a fourth diameter section with successively increasing diameters, that is, the diameter of the first diameter section is smaller than the diameter of the second diamet...

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PUM

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Abstract

The invention discloses a hydraulic automatic parking device, which comprises a shell, a piston cylinder and a piston assembly, wherein the piston cylinder is fixedly arranged in the interior of the shell through a first clamping ring; a cylindrical cavity is formed in the interior of the piston cylinder; the piston assembly is arranged in the shell and can slide leftwards and rightwards in the shell. The hydraulic automatic parking device provided by the invention can be used for providing greater operating force through hydraulic operation, moreover, is compact in structure, can be conveniently integrated in an automatic transmission; the mechanical locking is realized by a parking gear and the hydraulic automatic parking device works reliably.

Description

technical field [0001] The invention relates to the technical field of automatic transmission parking, in particular to a hydraulic automatic parking device for an electromechanical coupling dual-clutch transmission. Background technique [0002] The automatic transmission parking device is a device that prevents the vehicle from sliding and rolling backwards when the car is parked on the road or on a slope. At present, most of the parking systems equipped with automatic transmissions are manpower-mechanical, using mechanical transmission, using pull rods or zippers to connect the shift handle with the transmission parking mechanism, and realizing the parking function through the way the driver manipulates the shift handle. Low security and poor comfort. [0003] When the vehicle is running at a low speed of about 3km / h and parking on a 30° slope, the locking pawl must also reliably lock and disengage the parking gear. In this case, the parking pawl engages and disengages ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T1/06F15B15/14
Inventor 毛泽贤王明成唐立中梁伟朋
Owner CHINA FIRST AUTOMOBILE
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