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Novel parking braking mechanism of dual clutch automatic transmission (DCT)

A technology of automatic transmission and double clutch, which is applied in the direction of braking components, brakes, transmission control, etc., can solve problems such as power interruption and difficulty in shifting, and achieve the effect of small shifting force, light weight and reliable parking

Inactive Publication Date: 2012-02-01
FAW GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that it is difficult to shift gears, the power is interrupted when shifting gears, and the driver is required to be skilled in manipulation, so people expect it to be automated

Method used

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  • Novel parking braking mechanism of dual clutch automatic transmission (DCT)
  • Novel parking braking mechanism of dual clutch automatic transmission (DCT)
  • Novel parking braking mechanism of dual clutch automatic transmission (DCT)

Examples

Experimental program
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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is further described: novel dual-clutch type automatic transmission parking brake mechanism, by parking pawl 11, parking gear 14, shift arm 1, shift shaft 5, push arm 4, Pull rod 7, plate spring 8, fan-shaped plate 6, return torsion spring 10, fixer 13 and gear sensor 2 are composed; it is characterized in that: shift arm 1, push arm 4, fan-shaped plate 6 and gear sensor 2 are installed on On the shift shaft 5, there is an oil seal 3 between the gear sensor 2 and the push arm 4, the pull rod 7 is installed on the push arm 4, the front cylindrical part of the pull rod 7 is placed in the hole of the holder 13, and the parking gear 14 is installed in the transmission On the intermediate shaft, the parking pawl 11 rotates around the parking shaft 9; the leaf spring 8 is made up of a spring leaf, a pin shaft and a bushing, and the bushing is sleeved on the pin shaft and rolls in the groove of the sector pla...

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Abstract

The invention discloses a novel parking braking mechanism of a dual clutch automatic transmission (DCT). The novel parking braking mechanism is characterized in that a gear-shafting arm, a push arm, a sector plate and a gear-position sensor are arranged on a gear-shifting shaft, one end of a pull rod is arranged on the push arm, the other end of the pull rod is overlapped inside a fixator hole, a parking gear is arranged on an intermediate shaft of the transmission, and a parking pawl rotates around a parking shaft; and a plate spring is composed of a spring piece, a pin shaft and a casing pipe, and the casing pipe rolls in a groove of the sector plate on a pin shaft in a sleeved manner. The novel parking braking mechanism disclosed by the invention has the advantages of simple and compact structure, light weight, low cost, strong parking bearing capacity, accuracy in gear-shifting positioning, low gear-shifting force, and good hand feel, can be used for realizing five PRNDS (Parking, Reverse, Null, Drive, Sports) gear positions including a parking gear, a reverse gear, a null gear, a drive gear and a sport gear, and can be used for guaranteeing the reliable parking at the P gear.

Description

Technical field: [0001] The invention relates to a novel dual-clutch automatic transmission parking brake mechanism, which belongs to the technical field of automobile automatic transmissions in the automobile manufacturing industry. Background technique: [0002] With the rapid development of car ownership and the sharp increase in the number of non-professional drivers, automatic transmissions are showing a trend of rapid development. Present automobile automatic transmissions mainly include hydromechanical automatic transmission (AT), continuously variable transmission (CVT) and dual-clutch automatic transmission (DCT). [0003] The earliest automatic transmission on a car is a hydromechanical automatic transmission, referred to as AT, and it is also the most widely used automatic transmission for automobiles. It does not cut off the power for shifting, has the advantages of smooth starting and shifting, and self-adaptability to changes in resistance torque. But at the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/02B60T1/02
Inventor 李骏王明成卢新田刘明科顾振宇史英哲柳芬梅相楠王志明赵成福赵雪松任明辉
Owner FAW GROUP
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