Unlock instant, AI-driven research and patent intelligence for your innovation.

Simple electronic type parking mechanism

A parking mechanism, electronic technology, applied in the direction of mechanical equipment, vehicle components, brakes, etc., can solve the problems of decreased locking performance, insufficient unlocking force and unlocking speed, and affecting parking performance. Simple, avoid dead point locking defects, and increase the effect of unlocking torque

Pending Publication Date: 2018-12-04
SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. The existing electronic P gear mechanism generally restricts the rotation of the pawl through the dead point position of the cam mechanism. As the cam or the place where the pawl is attached wears and deforms during use, its locking performance decreases
[0006] 3. When the existing electronic P gear mechanism is unlocked, it is usually only powered by a torsion spring, and the unlocking force and unlocking speed are prone to insufficient, which affects the parking performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Simple electronic type parking mechanism
  • Simple electronic type parking mechanism
  • Simple electronic type parking mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Such as figure 1 As shown, a simple electronic parking mechanism includes a meshing worm gear 2 and a worm screw 1. The worm screw 1 is connected to the output shaft of the P gear drive motor. The meshing of the worm screw 1 and the worm gear 2 has self-locking characteristics, and the worm screw 1 can drive the worm gear 2 to rotate. , worm gear 2 cannot drive worm 1 to rotate. The center of the worm wheel 2 is provided with a rotatable pin shaft 6, and the pin shaft 6 is provided with a pawl 3. The worm wheel 2 is connected to the pawl 3 through a high-rigidity torsion spring 8, and the torsion spring 8 restrains the relative rotation of the two. A ratchet 4 is arranged below the ratchet 3, and the ratchet 4 is fixed on the gear shaft 5 of the speed reducer.

[0027] Such as figure 2 As shown, a sliding bearing 7 is provided between the worm wheel 2 and the pin shaft 6 , and the interference fit between the sliding bearing 7 and the worm wheel 2 enables the worm wh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a simple electronic type parking mechanism which comprises a worm wheel and a worm which are engaged with each other. The worm is connected with an output shaft of a P-gear drive motor, a rotary pin shaft is arranged in the center of the worm wheel and provided with a pawl; the worm wheel is connected with the pawl through a torsion spring; a ratchet wheel is arranged below the pawl and fixed to a gear shaft of a speed reducer; and the pawl is provided with top teeth corresponding to toothed grooves of the ratchet wheel in shape. Compared with the prior art, reliable locking of a P-gear mechanism is achieved through the self-locking feature of a worm wheel and worm mechanism, the defect of dead point locking is avoided, and the advantages of simple structure and the like are achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a simple electronic parking mechanism. Background technique [0002] The P gear parking mechanism is an essential safety mechanism for cars with AT boxes or pure electric vehicles. It is mainly used to prevent the car from sliding downhill after parking, and also to ensure that the car can be parked on the slope for a long time. The P-block parking mechanism generally locks the input / output shaft of the gearbox mechanically when the vehicle speed is low (usually less than 3km / h) or when it is stationary to prevent the drive shaft from rotating, thereby preventing the wheels from rolling to achieve the purpose of parking. The P gear parking mechanism is divided into mechanical and electronic parking according to the driving method. Now, with the continuous improvement of the electronic level of automobiles, the mechanical electronic parking is gradually replaced by the ele...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/34F16H59/08B60T13/74
CPCF16H59/08F16H63/3425F16H63/3466B60T13/746
Inventor 鲁方俊朱肖锋陈振坡孙小波
Owner SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD