CN202071824U

CN202071824U - Single-channel combined type ABS (Antilock Brake System) device

Info

Publication number: CN202071824U
Application number: CN2011201635028U
Authority: CN
Inventors: 袁付华; 汪德舟; 龙元香; 白东
Original assignee: GUANGZHOU KEMI AUTOMOBILE BRAKE TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: Guangzhou Ruili Comet automobile electronic Limited by Share Ltd
Priority date: 2011-05-21
Filing date: 2011-05-21
Publication date: 2011-12-14
Anticipated expiration: 2021-05-21

Abstract

The utility model discloses a single-channel combined type ABS (Antilock Brake System) device which comprises a regulator. A solenoid valve is arranged on the regulator, an ECU (Electronic Control Unit) is fixedly connected to the regulator, and the ECU is electrically connected with the solenoid valve. The solenoid valve is used as a mediator to directly integrate the ECU and the regulator into a body, the volume of the single-channel combined type ABS device is greatly decreased on the basis of retaining the necessary pressurizing, pressure maintaining and pressure reducing functions of the intrinsic ABS device, the installation process is simplified, the structure is compact, and the production cost is lowered. By adopting the combined type installation, the single-channel combined type ABS device has smaller volume and mass, saved space, complete functions, simple installation and safety and reliability and can be widely used on air brake models of single-axle semitrailers, double-axle semitrailers, light-duty buses, light-duty trucks and the like.

Description

Single channel compound type ABS device

Technical field

The utility model relates to a kind of automobile brake accessory, particularly a kind of single channel ABS device.

Background technology

Anti-skid brake system ABS, full name is Anti-lock Brake System, be a kind of the have wheel lockup of preventing, shortening automobile brake distance, reduce wear on tyres, prevent the vehicle safety control system of advantages such as automobile sideslip, whipping, domestic and international most automobile has all been installed the ABS device now, makes the performance of its wheel safety arrestment improve greatly.The mechanical part of ABS system the inside is the mode that adopts pneumatic connection substantially, by changing the switching of valve, changes the air pressure of compressed air brake cylinder, realizes that simulation " point is stopped " prevents wheel lockup.Wherein, the action core of ABS system be have some air valves, inside has the regulating control of variable gas circuit structure, the control core is electronic controller assembly (ECU), the ECU full name is Electronic Control Unit, its function is according to the program of its internal memory and data the information of sensor input to be carried out computing, processing, judgement, output command provides certain control information to electromagnetic valve then, finally changes the gas circuit structure in the regulating control.Electronic controller assembly (ECU) is made up of microcomputer, input, output and control circuit etc.

Single channel ABS device is compared to traditional equipment, all has at aspects such as directional balance, handling maneuver ability and stopping distances and better takes into account, and increased the electron steering calculating unit.Single channel ABS device generally is to select principle together to control automobile two trailing wheels by low, the directional balance when mainly improving automobile brake, and its regulating control fitness for purpose has the function of conventional brake, supercharging, pressurize, decompression.Yet regulating control and ECU in traditional single channel ABS device are relatively independent installation, the intensive complexity of regulating control interior conduit, valve is more, so overall volume, quality are all bigger, thereby it is higher to cause manufacturing cost to drive selling price, is difficult to adapt to the occasion of low side requirement.

The utility model content

The purpose of this utility model is for a kind of single channel compound type ABS device is provided, and it has the electromagnetic valve in the ECU direct-control regulator, the characteristics of compact conformation.

The solution that the utility model solves its technical matters is:

Single channel compound type ABS device comprises regulating control, and described regulating control is provided with electromagnetic valve, the ECU that also has been fixedly connected on the regulating control, and described ECU is electrically connected with this electromagnetic valve.

As further improvement in the technical proposal, described ECU is provided with two sensor plugs.

As further improvement in the technical proposal, have the exhausr port that admission port, control mouth, air extractor duct and supplied gas are discharged on the described regulating control.

As further improvement in the technical proposal, be provided with in the described regulating control and receive air chamber, the described air chamber of receiving is communicated with admission port, control mouth, air extractor duct, exhausr port respectively; Connecting tube between admission port and air extractor duct, and receive the intersection of air chamber and control mouthful, the connecting tube between the exhausr port is provided with Movable valve, and described receiving is provided with the main control piston that can lean with Movable valve in the air chamber.

As further improvement in the technical proposal, be provided with two moving iron cores in the described electromagnetic valve, described two moving iron cores are controlled respectively mouthful and are received whether being communicated with and controlling whether being communicated with of mouth and exhausr port of air chamber.

The beneficial effects of the utility model are: the utility model utilizes electromagnetic valve to be amboceptor, ECU and regulating control are directly integrated, under the prerequisite that has kept functions such as the intrinsic necessary supercharging of ABS device, pressurize, decompression, greatly dwindled the volume size of single channel ABS device, simplified installation process, and compact conformation has reduced productive costs.The utility model adopts compound type to install, and volume and quality are all less, saves the space, and complete function is installed simply, and is safe and reliable, can extensively install and use on compressed air brake vehicles such as single-axle semi-trailer, two-axle semitrailer, light bus, light-duty truck.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a front elevation of the present utility model;

Fig. 2 is a back view of the present utility model;

Fig. 3 is a birds-eye view of the present utility model;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the interior gas circuit structure rough schematic view of the regulating control in the utility model.

The specific embodiment

With reference to Fig. 1～Fig. 3, single channel compound type ABS device comprises regulating control 1, and described regulating control 1 is provided with the electromagnetic valve 11 of gas circuit structure in the controllable adjustable device 1, the ECU2 that also has been fixedly connected on the regulating control 1, and described ECU2 is electrically connected with electromagnetic valve 11.

Be further used as preferred embodiment, described ECU2 is provided with two sensor plugs 21, and described sensor plug 21 is connected with the vehicle wheel speed sensors of peripheral hardware.

Be further used as preferred embodiment, have the exhausr port 15 of the admission port 12, relay valve bonded assembly control mouth 13, the air extractor duct 14 that is communicated with the compressed air brake cylinder of peripheral hardware and the supplied gas discharge that are communicated with the gaholder of peripheral hardware on the described regulating control 1 with peripheral hardware.

With reference to Fig. 4～Fig. 5, be further used as preferred embodiment, be provided with in the described regulating control 1 and receive air chamber 3, the described air chamber 3 of receiving is communicated with admission port 12, control mouthfuls 13, air extractor duct 14, exhausr port 15 respectively; Connecting tube between admission port 12 and air extractor duct 14, and receive the intersection of the connecting tube between air chamber 3 and control mouthfuls 13, the exhausr port 15, be provided with a Movable valve 4, this Movable valve 4 by main casing lining 7, be enclosed within the outer annular piston 41 of main casing lining 7 and the compression spring 6 that is positioned at is between the two formed, described receiving is provided with the main control piston 5 that can lean with Movable valve 4 in the air chamber 3.Particularly, described Movable valve 4 is so a kind of structures, it has main casing lining 7 and the annular piston 41 that is enclosed within outside the main casing lining 7, be provided with compression spring 6 between described main casing lining 7 and the annular piston 41, the elastic force of described compression spring 6 pushes up annular piston 41 toward the direction away from main casing lining 7.When installing, main casing lining 7 one ends are the positions that are fixed on the close exhausr port 15 of main casing 8.Main control piston 5 is being received slippage in the air chamber 3, its integral body will be received air chamber 3 and be separated into two parts, a part is communicated with control mouth 13, be called the G chamber, its cooresponding pressure is P1, another part is communicated with air extractor duct 14, be called the K chamber, its cooresponding pressure is P2, and main control piston 5 has the long projection of aiming at Movable valve 4, when main control piston 5 moves toward position, K chamber, long projection promptly can be backed down Movable valve 4, thereby admission port 12, K chamber are communicated with air extractor duct 14, otherwise Movable valve 4 reset pathway closure.

With reference to Fig. 4, be further used as preferred embodiment, be provided with two moving iron cores in the described electromagnetic valve 11, described two moving iron cores control respectively mouthfuls 13 with receive whether being communicated with and controlling whether being communicated with of mouth 13 and exhausr port 15 of air chamber 3.With reference to Fig. 4, described two moving iron cores are moving iron core M1 of called afters and moving iron core M2 respectively, and M1 can be with the free air diffuser of control mouthfuls 13, M2 toward moving left and the outlet passageway of exhausr port 15 can being blocked toward moving right.

Brief description working process of the present utility model, working process of the present utility model can be divided into that conventional brake, brake-pressure increase, brake-pressure keeps, brake-pressure reduces the stage.

(1) conventional brake

Automobile is when cruising, the brake pedal attonity, the utility model do not work (being that the utility model stays out of braking pressure control), this moment, regulating control 1 was in normal open state, admission port 12 maintains high pressure gas, but control mouthful 13 no air pressure, annular piston 41 are compressed the extruding of spring 6 compression elasticities, valve closing.Admission port 12 is obstructed, promptly obstructed with air extractor duct 14 with the K chamber, and this moment, air extractor duct 14 communicated with exhausr port 15.

(2) pressurization

Gently step on brake pedal when moving, the utility model is not interfered braking procedure, the ECU2 no signal is exported to electromagnetic valve 11, moving iron core M1 and M2 are failure to actuate, this moment, admission port 12 maintained high pressure gas, control mouthful 13 feeding high pressure gas, high pressure gas is not subjected to stopping of M1 and M2, enters to the G chamber smoothly, at this moment P1＞P2, main control piston 5 is moved and promotes annular piston 41, compression spring 6 compression of turning left, valve is corresponding to be opened, and admission port 12 communicates with the K chamber and promptly communicates with air extractor duct 14, air extractor duct 14 pressure increase, and promptly the pressure in the compressed air brake cylinder increases sharply.In the starting stage of emergency braking (being before wheel does not also have locking), regulating control 1 is in pressurized state.

(3) pressure maintaining period

When chaufeur was stepped on brake pedal (promptly carrying out emergency braking) with all strength, admission port 12 maintained high pressure gas, control mouthful 13 feeding high pressure gas, and the utility model is interfered braking procedure.When the braking of wheel is tending towards locking, sensor sends the locking danger signal, the ECU2 output command is given electromagnetic valve 11, moving iron core M2 action, moving iron core M1 is failure to actuate, like this, the G chamber is closed with the path of control mouth 13, has cut off pressurized air and has entered compressed air brake cylinder, at this moment has pressure P 1 in the G chamber, when P1=P2, compression spring 6, annular piston 41 reset valve closing, admission port 12 is obstructed with the K chamber, then air extractor duct 14, K chamber do not communicate with exhausr port 15 at this moment, and the pressure at air extractor duct 14 places is maintained, and promptly the pressure in the compressed air brake cylinder remains unchanged.

(4) decompression process

If in " keep-uping pressure " process, when wheel still has further locking, ECU2 output signal and order moving iron core M1 action this moment, control mouth 13 is closed, moving iron core M2 is failure to actuate, the pressure in G chamber discharges by exhausr port 15, cause P1＜P2, main control piston 5 moves to the most initial position, annular piston 41, compression spring 6 resets, valve closing, and admission port 12 is obstructed promptly obstructed with air extractor duct 14 with the K chamber, the pressure of air extractor duct 14 discharges by exhausr port 15, and the pressure of air extractor duct 14 reduces (being that the interior pressure of compressed air brake cylinder makes the pressure in the compressed air brake cylinder reduce by exhausr port 15 direct exhaust to atmospheres).

More than be that better embodiment of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims

1. single channel compound type ABS device comprises regulating control (1), it is characterized in that: described regulating control (1) is provided with electromagnetic valve (11), and ECU(2 also has been fixedly connected on the regulating control (1)), described ECU(2) be electrically connected with this electromagnetic valve (11).

2. single channel compound type ABS device according to claim 1 is characterized in that: described ECU(2) be provided with two sensor plugs (21).

3. single channel compound type ABS device according to claim 1 is characterized in that: have the exhausr port (15) that admission port (12), control mouthful (13), air extractor duct (14) and supplied gas are discharged on the described regulating control (1).

4. single channel compound type ABS device according to claim 3, it is characterized in that: be provided with in the described regulating control (1) and receive air chamber (3), the described air chamber (3) of receiving is communicated with admission port (12), control mouthful (13), an air extractor duct (14), exhausr port (15) respectively; Connecting tube between admission port (12) and air extractor duct (14), and receive the intersection of the connecting tube between air chamber (3) and control mouthful (13), the exhausr port (15), be provided with Movable valve (4), described receiving is provided with the main control piston (5) that can lean with Movable valve (4) in the air chamber (3).

5. single channel compound type ABS device according to claim 4, it is characterized in that: be provided with two moving iron cores in the described electromagnetic valve (11), described two moving iron cores are controlled mouthful (13) respectively and are received whether being communicated with and controlling whether being communicated with of mouth (13) and exhausr port (15) of air chamber (3).