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Brake system with high dynamic brake pressure adjusting characteristic and parking function

A technology of braking pressure and adjusting characteristics, which is applied in the direction of braking safety system, braking action starting device, brake, etc., can solve the problem that the braking system no longer meets the braking needs of smart cars and new energy vehicles, and achieves improved Reliability and driving safety, strong failure protection ability, and the effect of increasing the nut stroke

Pending Publication Date: 2020-01-24
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

[0006] Therefore, the existing braking system is no longer suitable for the braking needs of smart cars and new energy vehicles, and a new braking system must be proposed to meet their requirements

Method used

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  • Brake system with high dynamic brake pressure adjusting characteristic and parking function
  • Brake system with high dynamic brake pressure adjusting characteristic and parking function
  • Brake system with high dynamic brake pressure adjusting characteristic and parking function

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Such as figure 1 As shown, the present invention provides a brake system with high dynamic brake pressure adjustment characteristics and a parking function, which mainly includes a brake pedal 1, a human cylinder 4, a brake controller 7 and a power supply 6, and also includes at least three The electric cylinders electrically connected to the brake controller 2 are respectively connected to the drain holes 416 of the manpower cylinder 4 through brake pipelines, and the electric cylinders are connected to the same cylinders on the automobile one by one. number of wheel brakes, and each electric cylinder forms a brake circuit with a corresponding wheel brake. The brake controller 7 is respectively connected with the pedal travel sensor 3 and the pressure sensor 5 through a signal line, and is used for measuring the stroke of the brake pedal 1 and the pressure of the human cylinder 4; The support pin 2 is connected with the human cylinder 4; the brake controller 7 is conn...

Embodiment 2

[0091] The electric cylinder in the first embodiment can also be set as the double-chamber electric cylinder in this embodiment; the cylinder body 217 part of the double-chamber electric cylinder is as follows Figure 5 As shown, other parts are consistent with Embodiment 1.

[0092] Such as Figure 5 As shown, the electric cylinder in this embodiment is a double-chamber electric cylinder. A piston part is slidably arranged in the cylinder block 217 of the electric cylinder, and the piston part includes a first piston 212 and a second piston 219 arranged along its sliding direction and a connecting piece 214 for connecting the first piston 212 and the second piston 219. A fifth cavity A21 is formed between the first piston 212 , the inner wall of the electric cylinder body 217 and the connecting piece 214 , and the seventh cavity D22 is formed between the second piston 219 and the inner wall of the electric cylinder body 217 .

[0093] Specifically, a first elastic member 21...

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PUM

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Abstract

The invention relates to the technical field of vehicle brake control systems or parts thereof, and specifically relates to a brake system with a high dynamic brake pressure adjusting characteristic and a parking function. The brake system comprises a brake pedal, a manpower cylinder, a brake controller and a power source and further comprises at least three electric cylinders electrically connected with the brake controller, wherein the electric cylinders are connected with a liquid discharging hole of the manpower cylinder through brake pipelines correspondingly and connected to wheel brakeswith the same number on a vehicle in a one-to-one correspondence mode, and each electric cylinder and the corresponding wheel brake form a brake loop; the brake controller is connected with a pedal stroke sensor and a pressure sensor through signal lines correspondingly; and each electric cylinder comprises a housing, a motor connected with the housing, a cylinder body, a transmission mechanism and a piston part slidably arranged in the housing. The brake system has the advantages of being compact in structure, high in brake response speed, capable of achieving the parking function, reliablein failure protection capacity, low in manufacturing cost and the like, and thus the vehicle is good in motion stability and high in reliability during braking.

Description

technical field [0001] The invention relates to the technical field of vehicle braking control systems, in particular to a distributed braking system with multiple working modes, capable of realizing braking in a short time and having a parking function. Background technique [0002] Automobile braking system is closely related to automobile driving safety. In the hydraulic braking system of traditional automobiles, the driver applies braking pressure to the wheel cylinders of each wheel brake by depressing the brake pedal, so as to achieve braking and decelerate the vehicle. Smart car systems such as advanced driver assistance systems (ADAS) and automated driving systems (ADS) require braking systems that can autonomously brake the vehicle, that is, apply the brakes to some or all of the wheels without depressing the brake pedal. At present, most of the brake systems that can implement autonomous braking use electric power assist, and retain brake control devices such as b...

Claims

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Application Information

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IPC IPC(8): F16D65/18F16H1/32F16D121/24F16D121/04F16D125/06
CPCB60T13/745B60T13/746B60T7/042B60T13/58B60T17/18F16D65/18F16H1/32F16D2121/24F16D2121/04F16D2125/06
Inventor 邓伟文张凯丁能根
Owner 南京经纬达汽车科技有限公司