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Parking mechanism of automatic transmission for vehicle

A technology of automatic transmission and parking mechanism, which is applied in the direction of mechanical equipment, components with teeth, transmission device control, etc. It can solve problems such as poor stability, shock feeling, low shift quality, and out of parking gear, etc., to achieve Low cost, improved market competitiveness, and smooth shifting effect

Inactive Publication Date: 2012-06-20
奇瑞控股集团有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a kind of parking mechanism of automatic transmission for automobiles, to solve the problem that the parking mechanism of existing automatic transmission for automobiles has a shock feeling when it is engaged in the parking gear, the quality of shifting is not high, and there are problems after it is engaged in the parking gear. Risk of getting out of park, poor stability issues

Method used

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  • Parking mechanism of automatic transmission for vehicle
  • Parking mechanism of automatic transmission for vehicle
  • Parking mechanism of automatic transmission for vehicle

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Embodiment Construction

[0024] Such as figure 1 As shown, when the engine crankshaft generates torque, the torque is transmitted to the transmission mechanism through the torque converter in the automatic transmission. At this time, the driver can shift gears through the shift lever, the gear switch starts to receive signals, and the transmission control device also starts It works, and finally the torque is transmitted to the differential through the output shaft to drive the transmission shaft and wheels; and the parking mechanism is used to achieve the purpose of parking.

[0025] Such as figure 2 and Figure 9 As shown, a parking mechanism for an automatic transmission of an automobile includes a parking ratchet 1 arranged on the output shaft of the transmission, a parking pawl 2 meshed with the parking ratchet, and one end of the parking pawl 2 is hinged on On the transmission housing, the other end is arranged on one end of the parking lock lever, and this end of the parking lock lever is su...

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Abstract

The invention discloses a parking mechanism of an automatic transmission for a vehicle, which comprises a parking ratchet wheel arranged on an output shaft of the transmission, and a parking pawl meshed with the parking ratchet wheel, wherein one end of the parking pawl is hinged on a transmission shell, and the other end of the parking pawl is arranged on one end of a parking locking rod; the end of the parking rocking rod is supported through a support on the transmission shell; the other end of the parking rocking rod is hinged with one end of a gear rail plate; the gear rail plate is fixedly connected with a gear shift shaft; a cam is arranged on a contact end of the parking locking rod and the parking pawl; when a park gear is shifted, a ligature connecting a first contact point between the parking pawl and the cam with the contact point between the support and the cam is vertical to an axial line of the parking locking rod; and when a reverse gear close to the park gear is shifted, the parking pawl is in contact with a transition surface on the cam. The parking mechanism can be smoothly shifted and has good shift quality, and the risk of dislocating of the park gear after the park gear is shifted is avoided.

Description

technical field [0001] The invention relates to the technical field of automobile parking mechanisms, in particular to a parking mechanism of an automobile automatic transmission. Background technique [0002] With the advancement of science and technology, people have higher and higher requirements for the comfort of car operation, and automatic transmission cars will be the future development trend. The parking mechanism is the mechanism used to park the car when the car is parked in the automatic transmission of the car. [0003] In order to reduce the manufacturing cost and reduce the failure rate, the parking mechanism of the current automobile automatic transmission mostly adopts a mechanical structure. But the parking mechanism of the existing disclosed automobile automatic transmission has the following problems: there is an impact feeling in the process of hanging into the parking gear, and the gear shift is not smooth, so that the shifting quality is not high; aft...

Claims

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Application Information

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IPC IPC(8): F16H63/34
Inventor 庞金广文芳芳叶远龙马威张玉民
Owner 奇瑞控股集团有限公司
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