Novel wire control brake system

A technology of brake-by-wire and control system, which is applied in the direction of brakes, brake transmissions, transportation and packaging, etc. It can solve the problems of large pressure fluctuations in the master cylinder, large workload, large fluctuations in braking force, etc., and achieve improved control Accuracy, improved driving experience, and improved ride comfort

Pending Publication Date: 2017-08-11
潘泓冰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current brake-by-wire master cylinder system has complex structure and high cost
And when the pressure is actively built, due to the valve precision and control precision, etc., the pressure of the master cylinder fluctuates greatly, which in turn causes the braking force to fluctuate greatly, which seriously affects the driving experience of the user.
[0003] Pedal simulators generally use a spring plus piston type, which simulates the braking force through spring force feedback, which is not direct enough
Since the force-displacement curve of the brake is nonlinear, and different vehicles have different force-displacement curves, it is necessary to design different spring parameters, which requires a lot of work and high cost

Method used

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Experimental program
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Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the present invention provides a novel brake-by-wire system, which includes: brake pedal 1, brake master cylinder 2, booster 3, oil pot 6, control system 4 and brake terminal 5 ;

[0047] The brake pedal 1 is connected with the brake master cylinder 2, and the brake master cylinder 2 is connected with a booster device 3 and an oil pot 6; the outlet of the brake master cylinder 2 is connected with the control system 4 and the brake terminal 5; the control system includes The ECU system and the ABS / ESP system; the brake terminal includes the braking device of the front, rear, left, and right four wheels; the supercharging device is connected with the oil pot 6 through the pressure sensor 38 and the normally open solenoid valve 39; the supercharging device includes a supercharging device Cylinder, piston and motor; Piston is arranged in booster cylinder, and motor promotes piston supercharging; Piston comprises piston one 34, piston two 37; Moto...

Embodiment 2

[0049] Such as figure 2 As shown, the difference between the novel linear braking system provided by this embodiment and Embodiment 1 is:

[0050] The booster cylinder is provided with a booster chamber baffle 310, and the booster chamber baffle 310 divides the booster cylinder into a first booster chamber 311 and a second booster chamber 312; the first booster chamber 311 is provided with a piston one, the described Piston 1 is connected with a self-locking screw and a high-speed, low-torque motor; piston 2 is arranged in the booster chamber 2, and the piston 2 is connected with a non-self-locking screw and a low-speed, high-torque motor; the booster chamber baffle 310 is provided with a baffle Opening 313; the brake master cylinder includes booster brake master cylinder 211 and conventional brake master cylinder 212; the T-shaped piston and the first piston are arranged in the booster brake master cylinder 211, and the second piston and the third The piston is arranged in ...

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Abstract

The invention relates to an automobile brake system, in particular to a novel brake-by-wire system; it improves the pressure control accuracy of the master cylinder, reduces pressure fluctuations in the brake master cylinder during active pressurization, reduces fluctuations in braking force, makes the braking force smoother, and improves The user’s driving experience, the present invention uses a hydraulic direct-feedback pedal feeling simulator, removes the spring in the original simulator, and directly feeds back the pedal braking force through hydraulic pressure, and at the same time only needs to choose different push rod diameters to feedback different pedal feel The present invention includes: brake pedal, brake master cylinder, supercharger, oil pot, control system and brake terminal; brake pedal is connected with brake master cylinder, and brake master cylinder is connected with booster device and oil The outlet of the brake master cylinder is connected to the control system and the brake terminal; the booster device is connected to the oil pot through the pressure sensor and the normally open solenoid valve; the booster device includes a booster cylinder, a piston and a motor; the piston is set in the booster Inside the cylinder, an electric motor pushes the piston to pressurize.

Description

technical field [0001] The invention relates to an automobile braking system, in particular to a novel wire-controlled braking system. Background technique [0002] At present, the brake-by-wire master cylinder system has a complex structure and high cost. And when the pressure is actively built, due to valve precision and control precision, etc., the pressure of the master cylinder fluctuates greatly, which in turn causes the braking force to fluctuate greatly, which seriously affects the driving experience of the user. [0003] Pedal simulators generally use a spring plus piston type, and the braking force is simulated through spring force feedback, which is not direct enough. Since the force-displacement curve of the brake is nonlinear, and different vehicles have different force-displacement curves, it is necessary to design different spring parameters, which requires a lot of work and high cost. Contents of the invention [0004] In order to improve the pressure con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/68B60T13/13
CPCB60T13/686B60T13/146
Inventor 潘泓冰
Owner 潘泓冰
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