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Parking mechanism for transmission and parking method of parking mechanism

A parking mechanism and transmission technology, applied in the direction of mechanical equipment, toothed components, belts/chains/gears, etc., can solve the problems of difficult integration, high processing accuracy requirements, poor parking comfort, etc., and achieve improved Stability and safety, easy platformization, and the effect of improving safety

Pending Publication Date: 2020-04-17
WANXIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technical scheme, the transmission efficiency of the worm gear is low and the heat generation is large. Due to the use of the two-stage transmission mechanism, the structure is relatively complicated and the requirements for machining accuracy are high. Unsatisfactory machining accuracy will lead to poor parking comfort of the system, and even Abnormal noise, in addition, the structure is difficult to integrate, the cost is high, and it is not conducive to batch production

Method used

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  • Parking mechanism for transmission and parking method of parking mechanism

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Embodiment

[0021] Such as figure 1 As shown, the present invention provides a parking mechanism for a transmission, including a pawl shaft 1, a pawl 2, a guide block 3, an actuator assembly 4, an actuator rod 41, an actuator rod spring 42, a conical pressure head 43, a limit Position pin 5, drive disc 6, elastic positioning pin 7, parking motor 8, ratchet 9, return spring 10, guide sleeve 11; in this scheme, the spline shaft of the parking motor meshes with the tooth groove on the drive disc, when the motor receives When the TCU gives a parking command, the motor rotates to make the drive plate rotate against the pressure constraint of the elastic positioning pin. The drive plate is connected with the actuator assembly, which consists of the actuator rod, the actuator spring, the actuator rod guide block and the conical pressure head. The rotation of the drive plate drives the actuator rod to move laterally along the guide block, and the conical pressure head on the actuator rod pushes t...

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PUM

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Abstract

The invention provides a parking mechanism for a transmission and a parking method of the parking mechanism. It is ensured that a parking system can quickly and safely park a car after receiving a parking instruction, it is guaranteed that the parking mechanism is simple in structure, low in machining requirement, low in cost, safe and reliable, and the parking stability is increased through special design. The parking mechanism comprises a motor, a drive plate, an elastic locating pin, an execution assembly, a pawl, a pawl shaft and a ratchet wheel, wherein the execution assembly comprises anexecution rod, an execution rod spring, a guide block and a tapered press head; the execution rod is sleeved with the execution rod spring, the tapered press head is arranged at the top end of the execution rod, and the ratchet wheel is arranged on the guide block; a spline rotating rod of the motor is engaged with a tooth groove in the drive plate, and the elastic locating pin is arranged on theupper side of the drive plate; and the drive plate is connected with the execution assembly, the drive plate drives the execution rod to move transversely along the guide block, the tapered press head on the execution rod pushes the pawl to swing along the pawl shaft to make the pawl to be engaged with the ratchet wheel.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a parking mechanism for a transmission and a parking method thereof. Background technique [0002] Existing automobile parking technical scheme adopts worm gear transmission, and its structure comprises parking motor, parking cam, ratchet and ratchet. The motor receives the parking signal of P gear, the parking motor starts to work, drives the screw to rotate, the screw meshes with the worm gear, the rotation of the worm gear shaft makes the gear on the shaft rotate, the gear drives the parking cam to move along the axis, and finally the parking cam makes the pawl Swings back and forth and engages with the ratchet to complete parking. [0003] In the existing technical scheme, the transmission efficiency of the worm gear is low and the heat generation is large. Due to the use of the two-stage transmission mechanism, the structure is relatively complicated and the requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/34
CPCF16H63/3425F16H63/3466
Inventor 魏巍陈江杨文权
Owner WANXIANG