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Electric control power-assisted pump, electric control power-assisted braking system and automobile

A brake system and booster pump technology, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of low bearing capacity, small power assistance, low efficiency, etc., achieve high structural stability, improve conversion efficiency, The effect of long service life

Active Publication Date: 2019-10-08
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing electronically controlled booster pumps usually use a rack and pinion or a worm gear to convert the rotational motion of the motor into the linear motion of the brake master cylinder. This conversion method has low efficiency and low bearing capacity. and help with small issues

Method used

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  • Electric control power-assisted pump, electric control power-assisted braking system and automobile
  • Electric control power-assisted pump, electric control power-assisted braking system and automobile
  • Electric control power-assisted pump, electric control power-assisted braking system and automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Please refer to Figure 4-10 , Figure 4 It is a structural schematic diagram of a specific embodiment of the electronically controlled booster pump provided by the present invention, Figure 5 Schematic diagram of the structure of the planetary roller screw, Figure 6 is a schematic diagram of the structure of a planetary roller screw without a nut, Figure 7 It is a schematic diagram of the connection structure of the rotating shaft, the actuator and the lubrication mechanism, Figure 8 It is a schematic diagram of the connection structure of the driving gear, the driving pump and the cooler, Figure 9 It is a schematic diagram of the connection structure of the driving gear, the driven gear, the drive shaft, the first gear and the second gear, Figure 10 It is a schematic diagram of the connection structure between the driving pump and the cooler.

[0053] Such as Figure 4 As shown, the present invention provides an electronically controlled booster pump for a...

Embodiment 2

[0074] Based on the electronically controlled booster pump involved in Embodiment 1, the present invention also provides an electronically controlled booster braking system, including braking components and the electronically controlled booster pump in Embodiment 1. In this way, the technical effects of the electronically controlled booster pump in Embodiment 1 should also be possessed by the electronically controlled booster braking system in this embodiment, and will not be repeated here.

[0075] Please refer to Figure 11-13 , Figure 11 It is a structural schematic diagram of a specific embodiment of the electric power-assisted braking system provided by the present invention, Figure 12 It is a schematic diagram of the connection structure of the motor, actuator and brake cylinder, Figure 13 It is a schematic diagram of the connection structure between the brake cylinder and the brake fluid pot.

[0076] Such as Figure 11As shown, the present invention also provide...

Embodiment 3

[0082] The present invention also provides an automobile, including a braking system, which is the electronically controlled power-assisted braking system mentioned in Embodiment 2.

[0083] Since the electronically controlled power-assisted braking system already has the above-mentioned technical effects, the automobiles having the electronically controlled power-assisted braking system should also possess similar technical effects, so details will not be repeated here.

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Abstract

The invention discloses an electric control power-assisted pump, an electric control power-assisted braking system and an automobile. The electric control power-assisted pump comprises a controller, amotor and an actuator, wherein the controller is in signal connection with the motor and can control operation of the motor; the actuator comprises a first shell and a planetary roller screw arrangedin the first shell, the planetary roller screw comprises a lead screw and a nut sleeving the lead screw, and a plurality of rollers are further arranged between the lead screw and the nut; the lead screw is connected with a rotating shaft of the motor, and the lead screw and the rotating shaft of the motor can rotate synchronously and can drive the nut to perform linear displacement so as to drive a piston of a braking part of the electric control power-assisted braking system to perform displacement; and the electric control power-assisted pump further comprises a lubricating mechanism, wherein the lubricating mechanism comprises a driving pump and a lubricating oil pipe, an inlet of the driving pump communicates with the bottom of the first shell through the lubricating oil pipe, and anoutlet of the driving pump communicates with the top of the first shell through the lubricating oil pipe. The electric control power-assisted pump has the advantages of being higher in bearing capacity, larger in transmission ratio, capable of providing larger power assistance, and longer in service life.

Description

technical field [0001] The invention relates to the technical field of automobile braking systems, in particular to an electronically controlled booster pump, an electronically controlled booster braking system and an automobile. Background technique [0002] Please refer to Figure 1-3 , figure 1 It is a structural schematic diagram of a specific embodiment of the braking system in the prior art, figure 2 for figure 1 Schematic diagram of the connection structure of the middle brake master cylinder, vacuum booster pump, brake fluid pot and brake pedal, image 3 for figure 2 Cutaway view of medium vacuum booster pump. [0003] Such as figure 1 , figure 2 As shown, a traditional automobile braking system usually includes a brake master cylinder 01, a vacuum booster pump 02, a brake fluid pot 03, a brake pedal 04, a hand brake 05, a brake 07 located at each wheel, and a brake connected to each component. Among them, the vacuum booster pump 02 provides boost for th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/12B60T13/66
CPCB60T13/12B60T13/20B60T13/66
Inventor 徐旭初朱新星张伯平李玄玄
Owner SAIC MOTOR