Hybrid braking system

A braking system and hybrid technology, applied in the direction of brake, brake transmission, transportation and packaging, can solve the problem that a single vacuum booster cannot meet the braking demand and layout space at the same time, and achieve high-efficiency braking energy Recovery, multi-redundant braking function, the effect of improving crash safety

Pending Publication Date: 2021-06-22
南京经纬达汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to apply a hybrid braking system to meet the braking demand on vehicles limited by the layout space, so as to solve the problem that the single vacuum booster in the prior art cannot meet the braking demand and the layout space at the same time

Method used

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Experimental program
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Effect test

Embodiment 1

[0067] Please refer to figure 1 , this embodiment provides a hybrid brake system, including a vacuum booster assembly 1, an auxiliary electro-hydraulic servo brake assembly 2, a brake pedal 3, a liquid storage tank 4, a main brake master cylinder 5, an auxiliary system Active master cylinder 6, shuttle valve 7, hydraulic control unit (HCU) 8 and brake group 9. The two ends of the vacuum booster assembly 1 are respectively connected with the main brake master cylinder 5 and the brake pedal 3, and the brake pedal 3 in this embodiment is also equipped with a pedal stroke sensor for detecting the pedal depression stroke and for The brake light switch for detecting the pedal brake operation, the pedal travel sensor, the brake light switch and the auxiliary electro-hydraulic servo brake assembly 2 are connected through CAN bus communication. The auxiliary electro-hydraulic servo brake assembly 2 is connected with the auxiliary brake master cylinder 6 .

[0068] In this embodiment,...

Embodiment 2

[0101] The structure of the hybrid braking system in this embodiment is basically the same as that in Embodiment 1, the difference is that: the first brake group in this embodiment is composed of left rear wheel brake LR and right rear wheel brake RR; the second brake group It consists of left front wheel brake LF and right front wheel brake RF. The four oil outlets of the hydraulic control unit 8 are respectively connected with LR, RR, LF and RF. At this time, the braking system is an H-shaped arrangement.

Embodiment 3

[0103] The structure of the hybrid braking system in this embodiment is basically the same as that in Embodiment 1, the difference is that the first brake set in this embodiment consists of a left front wheel brake LF and a right rear wheel brake RR, and the second brake set It consists of the right front wheel brake RF and the left rear wheel brake LR. The four oil outlets of the hydraulic control unit 8 are respectively connected with LF, RR, RF and LR. At this time, the brake system is an X-shaped arrangement.

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Abstract

The invention provides a hybrid brake system. The brake system mainly comprises a brake pedal, a vacuum booster assembly, an auxiliary electro-hydraulic servo brake assembly, a shuttle valve, a hydraulic control unit and a brake set. The vacuum booster assembly is connected with a brake pedal, and the brake pedal is further provided with a corresponding pedal travel sensor. The vacuum booster and the auxiliary electro-hydraulic servo brake assembly are respectively connected with respective brake master cylinders, and the main brake master cylinder is directly connected to a left oil inlet of the hydraulic control unit through a first loop and is connected to a right oil inlet of the hydraulic control unit through a second loop, a shuttle valve and a fourth loop; the auxiliary brake master cylinder is connected to a right oil inlet of the hydraulic control unit through a third loop, a shuttle valve and a fourth loop, and an oil outlet of the hydraulic control unit is connected with the brake set. The system is applied to a vehicle with the limited arrangement space, the auxiliary electro-hydraulic servo brake assembly is additionally arranged on the basis of an original vacuum booster, and the requirement for higher brake pressure can be met.

Description

technical field [0001] The invention belongs to the technical field of automobile braking, and in particular relates to a power-assisted braking system in a hydraulic braking system. Background technique [0002] Automobile braking systems can be divided into mechanical, hydraulic, pneumatic, electromagnetic, etc. according to the different transmission methods of braking energy. Among them, the braking energy transmission mode of the hydraulic braking system is hydraulic pressure, that is, the hydraulic pressure is increased by compressing the brake fluid in the braking system during braking. After the hydraulic pressure is transmitted to the wheel brake, it will finally push the friction plate to stick to the brake The disc or brake drum produces a braking torque that hinders the rotation of the wheel, and finally the ground reacts on the wheel with a ground braking force that is opposite to the direction of travel to brake the vehicle. [0003] Compared with the pneumati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/14B60T13/52B60T13/58
CPCB60T13/142B60T13/148B60T13/52B60T13/581
Inventor 史晓波邓伟文
Owner 南京经纬达汽车科技有限公司
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