CN2354823Y - Hydraulic unlocking brake of vehicle - Google Patents
Hydraulic unlocking brake of vehicle Download PDFInfo
- Publication number
- CN2354823Y CN2354823Y CN 98229255 CN98229255U CN2354823Y CN 2354823 Y CN2354823 Y CN 2354823Y CN 98229255 CN98229255 CN 98229255 CN 98229255 U CN98229255 U CN 98229255U CN 2354823 Y CN2354823 Y CN 2354823Y
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- Prior art keywords
- controller
- electromagnetic valve
- sensor
- chamber
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic anti-locking braking device of an automobile. A sensor for wheel speed 1 is composed of a pulsed ring and a sensor head; the pulsed ring is fixedly connected with a transmission shaft, or is installed near to the main gearbox gear 2 of the automobile; an air gap is arranged between the pulsed ring and the sensor head; the transmission cable of the sensor 1 is connected with a controller 3; a pressure regulator is composed of a valve body and an electromagnetic valve; the transmission cable of the controller 3 which is connected with the electromagnetic valve sends the instructions of closing or opening the pressure oil channel of the valve body to the electromagnetic valve; the pressure oil channel is connected with a wheel cylinder 6.
Description
The utility model is relevant with vehicle braking device, and is especially relevant with the automobile anti-lock braking brake equipment with hydraulic braking.
Existing automobile hydraulic ABS (Anti-lock Braking System) is mainly formed with wheel speed sensor, controller and regulating control.Because its complex structure, cost height, install and use inconvenience, reliability low, its use is affected.Main crux is: (1) wheel speed sensor is contained on the wheel, and its pulse ring will be packed on the wheel hub, and sensor head will be contained on the axle housing, and between the two appropriate a. g. will be arranged.Difficulty not only is installed, and the fault rate height.Data shows according to statistics, and the fault rate of sensor is 30-50%; And maintenance difficulty, time-consuming.(2) pressure regulator all is that (propulsion source herein is not meant the power supply used of power supply magnet valve for the pressure regulator in dynamic source, and be meant the dump pump and the motor of reverse-flow type pressure regulator, or the motor of positive displacement pressure regulator), complex structure, the cost height, the moving pedal pulse of anti-lock braking system(ABS) work schedule is serious.(3) controller is placed in the operator's compartment, and easy electromagnetic wave interference is quite serious to spark ignition engine especially.Growing the not only interference of easy electromagnetic wave, and easy et out of order (4) three big parts packing, the cable between them more.
The purpose of this utility model provides the automobile hydraulic ABS (Anti-lock Braking System) of a kind of simple in structure, easy for installation, reliable operation, with low cost, easy access.
The utility model is achieved in that
The utility model wheel speed sensors 1 is made up of pulse ring and sensor head, pulse ring and transmission shaft be connected or be installed in automobile main reducer gear 2 near, between pulse ring and sensor head from a. g., the transmission cable of sensor 1 is connected with controller 3, pressure regulator is made up of valve body and electromagnetic valve, the transmission cable of controller 3 is connected with electromagnetic valve, sends the instruction of closing or opening valve body pressure oil passage to electromagnetic valve, and the pressure oil passage is connected with wheel cylinder 6.
The transmission cable of the utility model sensor 1 is connected with the amplifying circuit of controller 3, the output of amplifying circuit is connected with micro controller system, the output of micro controller system is connected with driving circuit, and one tunnel output of micro controller system connects light-emitting diode display 8, and the output of actuator connects the electromagnetic valve of regulating control 4.
In the shell 40 of wheel speed sensors 1 permanent magnet 36 is arranged, coil 37, iron core 38 has a. g. 39 between iron core 38 and the gear 2, and coil 37 is connected with controller by cable 35.
The utility model regulating control 4 and controller 3 be installed on automobile rear apart from 2 meters of controlled wheels with on the interior car chassis.
The utility model is simple in structure, and volume is little, and is easy for installation.Regulating control has high-frequency, high workload pressure, small size, the advantage that noise is little, not needing dump pump and motor to carry out return pressure regulates, electromagnetic valve core adopts the sealing of lip circle, when brake system loads (oil pressure rising), lip type circle lip is close to the valve body hole wall and is sealed, when brake system unloads (oil pressure decline), oil in wheel cylinder and the accumulator refluxes under spring and master cylinder adsorption, the lip type circle lip of electromagnetic valve core is received rapidly and disturbed oil return, plays unidirectional conducting effect, and is simple in structure, compactness, low cost of manufacture.Regulating control and controller are integrated and are installed in automobile rear near on the cross member of frame or longeron of trailing wheel, can shorten the lead of wheel speed sensors to electronic controller.Because electronic controller away from engine ignition line and electrical generator, can prevent electromagnetic interference effectively.Since sensor, pressure regulator, telltale, power supplys etc. link to each other with controller by Connector Clip, have omitted many unnecessary connecting cables, have reduced electromagnetic interference, and the reliability of whole device is increased.
Sensor obtains impulse singla from the driven tooth gear teeth position of self-propelled vehicle main reduction gear and send the micro controller system of controller to carry out computing, data handing and judgement, the opening and closing of controlled adjuster oilhole can realize pressurization, thereby pressurize or decompression make wheel in the unlikely locking of when brake.
Following is accompanying drawing of the present utility model:
Fig. 1 is integral structure figure of the present utility model.
Fig. 2 is controller structure figure.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is lip-type seal coil structures figure.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is sensor construction figure.
Fig. 7 is a frame principle figure.
Fig. 8 is schematic circuit diagram.
Following is embodiment of the present utility model:
The sensor 1 of measuring the wheel movement state parameter is delivered to controller 3 again from main reduction gear gear 2 (or be installed on the transmission shaft pulse ring) pickoff signals, sends instruction by controller, carries out regulating control by the brake-pressure of 4 pairs of wheel cylinders 6 of pressure regulator.
The operating characteristic of sensor is as follows:
(1) working temperature range :-40～180 ℃.
(2) a. g.: 1.5 ± 0.5mm.
(3) output characteristic: transfer when being 38 ± 2rpm, output voltage is no less than 0.45V, and when rotating speed was 1560 ± 50rpm, output voltage was no less than 2.00V.
(4) coil: 0.06 * 8000～0.06 * 15000 (circles)
(5) surface magnetic flux: be no less than 100GS.
Signal of sensor is given micro controller system after amplifying, micro controller system is by the state of driving circuit controlled adjuster, and the normal operation of micro controller system is monitored by watchdog circuit, and state of the system and fault are shown by telltale, displaing yellow when the speed of a motor vehicle is lower than 10Km/h; Be higher than 10Km/h and show when working properly green; The redness of display flashing when mals such as sensor, regulating control, controller circuitry.
Controller is contained in the sealed box that links together with pressure regulator, link to each other with sensor, pressure regulator, telltale, power supply etc. by connector, saved many unnecessary connecting cables, reduced electromagnetic interference, the reliability of total system is increased.
Pressure regulator mainly by valve body, the electromagnetic valve 15 that dams, unload pressure electromagnetic valve 18, accumulator 22, compositions such as a plurality of seal rings, lip-type packing 32.Import I links to each other with master cylinder, and outlet II links to each other with wheel cylinder.Pressure regulator can be realized the regulating control of supercharging, pressurize, decompression according to the instruction of controller to wheel cylinder.After signal via controller that sensor picks up was analyzed, if when deceleration/decel or slip rate are excessive, then the command pressure regulating control reduced pressure of wheel braking cylinder; When deceleration/decel or slip rate were too small, then the command pressure regulating control increased pressure of wheel braking cylinder; When deceleration/decel or slip rate were moderate, then the command pressure regulating control remained unchanged pressure of wheel braking cylinder.Keep wheel to be in best state of kinematic motion.This regulating control is swift in response, and gain is reasonable, and the two mates desirable.
Under normal conditions, electromagnetic valve 15 no powers that dam are in opening, unload pressure electromagnetic valve 18 no powers and are in closed condition, and unblocked to the passage of outlet II by import I, the pressure of wheel cylinder can rise with the pressure of master cylinder, is referred to as the pressure boost state.
Electromagnetic valve 15 energisings of damming are in closed condition, unload pressure electromagnetic valve 18 no powers and are in closed condition, and the passage of wheel cylinder and master cylinder is cut off, and pressure of wheel braking cylinder is in the state that remains unchanged.
The electromagnetic valve that dams is in closed condition, and the passage of wheel cylinder and master cylinder is cut off, and unloads the pressure electromagnetic valve energising and is in unlatching, and the high hydraulic brake fluid of wheel cylinder enters accumulator by unloading oilhole, and pressure of wheel braking cylinder descends, and is referred to as to reduce pressure state.
The effect of accumulator 22 and lip type circle 32, design is unique, has replaced the function of existing pressure regulator propulsion source.
When master cylinder pressure was higher than pressure of wheel braking cylinder, lip die cavity circle 32 all sealed, otherwise the effect of fast pressure relief is arranged, and when this had just kept loosen the brake, the rapid reduction of pressure of wheel braking cylinder significantly reduced the time of loosening of service brake.
Control program to pressure regulator, sensor and controller carries out certain design adjustment, and the utility model is applicable to the hydraulic brake system of various different automobiles.
Signal amplification circuit is by op amp IC2, and IC3 constitutes, and driving circuit is managed U2 by VMOS, and U3 constitutes.
The pickoff signals input micro controller system IC1 (CIW53-1) of wheel speed sensors 1; outputing to op amp J3 after the micro controller system calculation process amplifies; be input to op amp I2 after the field effect transistor U1 shaping; IC3; amplifying signal is input to micro controller system IC1 and outputs to power amplifier U2 again, and the U3 rate of doing work is amplified, and J1 is passed through in the output of power amplifier; the J2 op amp connects the normally closed electromagnetic valve and the pressure electromagnetic valve of often starting discharging of damming, and ic chip 4 is the voltage protection circuit of controller.
Claims (6)
1, a kind of automobile hydraulic ABS (Anti-lock Braking System), it is characterized in that wheel speed sensors (1) is made up of pulse ring and sensor head, pulse ring and transmission shaft be connected or be installed in automobile main reducer gear (2) near, between pulse ring and sensor head from a. g., the transmission cable of sensor (1) is connected with controller (3), pressure regulator is made up of valve body and electromagnetic valve, the transmission cable of controller (3) is connected with electromagnetic valve, send the instruction of closing or opening valve body pressure oil passage to electromagnetic valve, the pressure oil passage is connected with wheel cylinder (6).
2, brake equipment according to claim 1, the transmission cable that it is characterized in that sensor (1) is connected with the amplifying circuit of controller (3), the output of amplifying circuit is connected with micro controller system, the output of micro controller system is connected with driving circuit, one tunnel output of micro controller system connects light-emitting diode display (8), and the output of actuator connects the electromagnetic valve of regulating control (4).
3, brake equipment according to claim 1 and 2, the logical fuel feed hole (13) of central aisle (12) one ends of spool (11) that it is characterized in that the normally closed throttle solenoid valve (10) of pressure regulator (4), the other end is through the chamber (15) at armature (14) place, spool side chamber (16), passage (17) is connected oilhole (19) with the pressure electromagnetic valve of often starting discharging (18), oilhole (19) connects wheel cylinder (6), oilhole (13) connects master cylinder (5), the spool (31) of electromagnetic valve (18) has torus section (20), logical and accumulator (22) the bonded assembly chamber (23) of its central aisle (21) one ends, the other end is by the chamber (25) at armature (24) place, side chamber (26) T-Ring shape passage (20) and oilhole (19), the piston (27) of accumulator (22) is positioned at plug chamber (28), is connected with screw plug (30) by spring (29).Between the spool (11), (31) and the chamber that cooperates lip-type seal circle (32) is arranged, seal ring (32) is garden platform shape center mating holes (33) and annular lip (34).
4, brake equipment according to claim 1 and 2, it is characterized in that in the shell (40) of wheel speed sensors (1) permanent magnet (36) being arranged, coil (37), iron core (38), between iron core (38) and the gear (2) a. g. (39) is arranged, coil (37) is connected with controller by cable (35).
5, brake equipment according to claim 1 and 2 is characterized in that controller (3), is positioned on the housing of regulating control (4), and by Connector Clip and regulating control (4), telltale (8), sensor (1) is connected with power supply.
6, brake equipment according to claim 1 and 2, it is characterized in that regulating control (4) and controller (3) be installed on automobile rear apart from 2 meters of controlled wheels with on the interior car chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229255 CN2354823Y (en) | 1998-08-07 | 1998-08-07 | Hydraulic unlocking brake of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229255 CN2354823Y (en) | 1998-08-07 | 1998-08-07 | Hydraulic unlocking brake of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2354823Y true CN2354823Y (en) | 1999-12-22 |
Family
ID=33979175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229255 Expired - Lifetime CN2354823Y (en) | 1998-08-07 | 1998-08-07 | Hydraulic unlocking brake of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2354823Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709110A (en) * | 2015-07-15 | 2018-02-16 | 株式会社爱德克斯 | Pressure regulation reservoir |
-
1998
- 1998-08-07 CN CN 98229255 patent/CN2354823Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709110A (en) * | 2015-07-15 | 2018-02-16 | 株式会社爱德克斯 | Pressure regulation reservoir |
| CN107709110B (en) * | 2015-07-15 | 2019-10-25 | 株式会社爱德克斯 | Pressure regulation reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING JUNENG AUTOMOTIVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: JUNENG AUTOMOTIVE TECHNOLOGY CO., LTD., CHENGDU CITY Owner name: CHONGQING JUNENG AUTO PARTS CO., LTD. Free format text: CHANGE FOR CO-PATENTEE; FORMER NAME OR ADDRESS: NONE |
|
| CP03 | Change of name, title or address |
Address after: 400015, 60 Li Zheng street, Yuzhong District, Chongqing Co-patentee after: Chongqing shaped Auto Parts Co., Ltd. Patentee after: Chongqing Juneng Automotive Technology Co., Ltd. Address before: 611130 Sichuan Wenjiang Chengnan Development Zone Patentee before: Chengdu Juneng Vehicle Technology Co., Ltd. |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENT RIGHT; FROM: TERMINATION TO: RECOVERY |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |