Brake by wire system with hydraulic power and control method of brake by wire system

A brake-by-wire and oil-carrying technology, which is applied in the direction of brakes, brake transmissions, transportation and packaging, etc., can solve problems such as noise and power consumption, and achieve the effects of compact system structure, fast adjustment response and low cost

Active Publication Date: 2017-01-11
WUHU BETHEL AUTOMOTIVE SAFETY SYST
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Problems solved by technology

It is mainly reflected in two aspects: one is the development of new energy vehicles, such as the development of electric vehicles, so that there is no vacuuming power source for the vacuum booster on the vehicle-the engine, an electronic vacuum pump must be connected externally, and its disadvantage is that

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  • Brake by wire system with hydraulic power and control method of brake by wire system
  • Brake by wire system with hydraulic power and control method of brake by wire system
  • Brake by wire system with hydraulic power and control method of brake by wire system

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Embodiment Construction

[0078] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0079] One, overall structure of the present invention:

[0080] 1, figure 1 It is a structural schematic diagram of the wire-controlled hydraulic brake system of the present invention. Figure 2 to Figure 8 Schematic diagram of hydraulic power-assisted braking system ( figure 1 ) Definition of each hydraulic component legend. The three-chamber separation structure of the oil pot is as follows: Figure 9 shown.

[0081] figure 1 The specific structure of the wire control hydraulic brake system scheme shown in is:

[0082] A hydraulic pump 05 is driven by a continuously rotating motor 06 to pressurize the system;

[0083] ...

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Abstract

The invention discloses a brake by wire system with hydraulic power. A mechanical action unit of the brake by wire system with hydraulic power consists of a brake pedal, a brake master cylinder and an oil can. An electric power and pressure regulating unit is provided with a motor driven hydraulic pump. The brake master cylinder from the direction of a piston of the brake master cylinder to a piston rod of the brake master cylinder is provided with chamberII, chamber II and chamber III in sequence. The chamber III is the chamber that the piston rod is positioned in. A connected pipeline is positioned between the chamberI and the chamber II. The connected pipeline is provided with a check valve whose conducting direction is from the chamber III to the chamber I. Using the above technical scheme can reduce production costs and decrease in volume, which is beneficial to install and arrange in the vehicle, and can achieve braking in normal situation. Using the above technical scheme can also achieve quick plenum, pressure reduction and regulation control, and the governing response is fast, and the response requirement for a motor pump system as well as the requirement for a motor and ECU power are far below a scheme that requires the motor reversing quickly. A system structure of a brake by wire system with hydraulic power is more compact and costs of the whole brake system are lower.

Description

technical field [0001] The invention belongs to the technical field of automobile brake systems. More specifically, the present invention relates to brake-by-wire systems with hydraulic assist. In addition, the present invention also relates to a control method of the above braking system. Background technique [0002] The boost of the traditional automobile braking system is to use the vacuum generated by the engine or the vacuum generated by the electronic vacuum pump to realize the brake pressure build-up in the vacuum booster. Such as Figure 22 Shown, serial number 4 is described vacuum booster. When the driver brakes, the brake pedal 6 is stepped on, and the brake master cylinder 3 is driven to pass through the electronically controlled pressure regulating unit ABS / ESC2 to build up pressure on the brake 1 to generate brake fluid pressure; a vacuum booster is needed for the pedal during this process. The force is proportionally amplified, so that the driver can achie...

Claims

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Application Information

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IPC IPC(8): B60T13/14B60T13/68B60T13/74
CPCB60T13/142B60T13/686B60T13/745
Inventor 袁永彬徐文泉张平平黄先明
Owner WUHU BETHEL AUTOMOTIVE SAFETY SYST
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