CN2233344Y - Brake anti-blocking system - Google Patents
Brake anti-blocking system Download PDFInfo
- Publication number
- CN2233344Y CN2233344Y CN 95236226 CN95236226U CN2233344Y CN 2233344 Y CN2233344 Y CN 2233344Y CN 95236226 CN95236226 CN 95236226 CN 95236226 U CN95236226 U CN 95236226U CN 2233344 Y CN2233344 Y CN 2233344Y
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- CN
- China
- Prior art keywords
- utility
- model
- electronic controller
- brake
- acceleration pick
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- Expired - Fee Related
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Abstract
The utility model relates to a brake anti-blocking system for a vehicle. The utility model is characterized in that an acceleration sensor and an angular velocity sensor are used as signal sources to simultaneously detect the slipping state between the wheel and the ground, the utility model rapidly inputs the signal to an electronic controller which is composed of a conventional resistor capacitor unit and a general-purpose operation amplifier, and then after an analysis processing by the electronic controller, a reaction is immediately executed by two-position three-way magnetic valves. The utility model has the advantages of simple structure, good adaptability, low cost, and rapid response, and can avoid incontrollable sideslip and enhance driving safety. The utility model is suitable for vehicle with hydraulic brake or pneumatic brake.
Description
The utility model relates to a kind of brake anti-lock device, belongs to vehicle braking control system or its parts.
Existing anti-lock is as described in " automobile journal " 1994 (6), generally by veneer (sheet) machine or special chip as electronic controller, angular velocity sensor, the anti-embracing unit that the 3-position-3-way valve constitutes as pressure regulator, such anti-lock device, in high-speed cruising, brake the locking phenomenon that produces for vehicle, certain inhibit function is arranged.The automobile sideway skid resistance also increases.But this device also exists following deficiency.The one, complex structure, electronic controller must be with single board computer (SBC) or special chip, and need be equipped with complicated software, pressure regulator need adopt the 3-position-3-way valve, the 2nd, speed of response is slow, the control system complexity, though the chip arithmetic speed is high, but whenever carry out a braking mode (being whether wheel and ground are in the excessive slip state) analysis, need calculate in a large number, so control frequency is difficult to improve, the response real-time is affected, the 3rd, only adopt cireular frequency as control signal, relatively poor for the comformability of pavement friction situation.
The purpose of this utility model provides a kind of brake anti-lock device that need not single board computer (SBC) or special chip.
The electronic controller that the utility model adopts general-purpose operation amplifier and conventional Resistor-Capacitor Unit to form, angular velocity sensor, acceleration pick-up, the brake anti-lock device that two-position three way magnetic valve constitutes.
Characteristics of the present utility model are included in vehicle frame and are provided with an inside mass is arranged, be equipped with the acceleration pick-up of an elasticity fine strain of millet on the shell, the lead of drawing from the acceleration pick-up mouth and by the magnetic gear ring that is fixed on the wheel, be fixed on the lead that angular velocity sensor mouth that the induction coil on the vehicle frame constitutes draws and be connected to respectively in the electronic controller that is made of general-purpose operation amplifier and conventional Resistor-Capacitor Unit, the mouth of electronic controller and the coil of two-position three way magnetic valve join.
Adopt anti-lock device of the present utility model, signal processing is simple, and response in time owing to adopt angular velocity sensor and acceleration pick-up as control signal, has good comformability to various road conditions, and cost is low, and control is convenient, is swift in response.The wheel lockup phenomenon that occurs when eliminating car brakeing has increased the adhesive ability between glancing impact wheel and ground, avoids occurring the sideslip out-of-control phenomenon, improves traffic safety, alleviates wear on tyres.The vehicle that is suitable for hydraulic pressure or compression air brake.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is the utility model structural representation.
Fig. 2 is the acceleration sensor structure scheme drawing.
Fig. 3 is the electromagnetic valve structure scheme drawing.
Embodiment 1:
Gear ring of being made by the magnetic material that is fixed on the wheel 87 and the induction coil 6 that is fixed on the vehicle frame constitute angular velocity sensor, but gear ring 7 has a fixed interval (FI) with induction coil 6, and two leads and electronic controller 5 that induction coil 6 is drawn join.Also have additional an acceleration pick-up 4 on the vehicle frame 1, be equipped with a mass 17 in the inside of acceleration pick-up 4, be connected on the vehicle frame by elasticity fine strain of millet 18 (or piezoceramic) mutually with the housing 19 of acceleration pick-up 4, at the resistance strain gage 20 that also is provided with on the elastic beam 18 more than two, draw two leads from resistance strain gage 20 and also join with electronic controller 5.Electronic controller 5 can be received two signal sources being sent here by angular velocity sensor and acceleration pick-up simultaneously like this, by the electronic controller analysis, judges, reacts rapidly, is carried out by electromagnetic valve 12.Electromagnetic valve 12 joins with the mouth of electronic controller 5.Electromagnetic valve 12 is arranged to two-position three-way valve, be fixed on the vehicle frame 1, one end of oil inlet 14 and electromagnetic valve 12 oil inlets join, the other end and master brake cylinder 15 join, one end of oil outlet pipe 11 and electromagnetic valve 12 oil outlets join, the other end and brake cylinder 10 join, one end of oil return pipe 13 be installed on the electromagnetic valve, one-way pressure-limit valve by pressure limiting spring 28 and steel ball 27 or ball sealer (post) formation joins, the other end with hold oil sump 3 and be connected, also be provided with magnet coil 21 on the electromagnetic valve 12, armature 22, iron core 23, valve body 24, spool 25 is connected with retracing spring 26 in the lower end of spool 25.Glancing impact, chaufeur is stepped on brake pedal 2, piston 16 moves to right, hydraulic oil in the master brake cylinder 15 just flows to the valve pocket of electromagnetic valve 12 through oil inlet 14, because braking relative slippage do not occur between initial stage wheel and ground as yet, so electronic controller 5 is not to the electromagnetic valve energising, spool 25 draws under retracing spring 26 effects again.Hydraulic oil is just flowed through oil pipe 11 to brake cylinder 10 from the valve pocket of electromagnetic valve 12, and brake cylinder produces hydraulic coupling and clamps brake disc 9, thereby produce braking force wheel 8 is slowed down.In case braking force is excessive, wheel decelerates is too fast, make and produce excessive slippage between wheel and ground, electronic controller 5 passes through the analyzing and processing to the signal of being imported by angular velocity sensor 6,7 and acceleration pick-up 4, respond immediately, electromagnetic valve 12 energisings, spool 25 is to being displaced downwardly to oil outlet, and at this moment oil outlet pipe 11 communicates with oil return pipe 13, a part of hydraulic oil in the brake cylinder 10 just flows back to through oil pipe 11, valve pocket and oil return pipe 13 and holds oil sump 3, and the oil pressure in the brake cylinder 10 descends.(but, helping the rapid reaction of this device) because the one-way pressure-limit valve effect that pressure limiting spring 28 and steel ball 27 or ball sealer (post) are formed in the electromagnetic valve 12 still keeps certain residual pressure in the brake cylinder.Braking force reduces, and wheel 8 quickens under the frictional ground force effect, and angular velocity sensor is about to signal feedback to electronic controller 5, and electronic controller 5 is handled the back by analysis and given electromagnetic valve 12 outages.Spool 25 resets under the effect of retracing spring 26 once more, and oil outlet pipe 11 is connected with oil inlet 14 again.Braking liquid is flowed through oil inlet 14, valve pocket and oil outlet pipe 11 to brake cylinder 10 from master brake cylinder 15 once more, and wheel 8 is braked once more.
Said process constantly repeats rapidly, drop to below the safety speed (20km/hr) up to car speed, or chaufeur stops till the brake operating.
Claims (3)
1, a kind of car brakeing anti-lock device, form by the brake pedal, angular velocity sensor, the pressure regulator that are installed on the vehicle frame, it is characterized in that: on vehicle frame, also have additional acceleration pick-up 4, the mouth of acceleration pick-up and the mouth of angular velocity sensor are connected to respectively in the electronic controller (5) that is made of general-purpose operation amplifier and conventional Resistor-Capacitor Unit, and the mouth of electronic controller (5) is connected on the coil (21) of two-position three way magnetic valve (12).
2, according to the described brake anti-lock device of claim 1, the lower end that it is characterized in that the spool (25) of two-position three way magnetic valve (12) is connected to retracing spring (26), on valve body, be provided with oil inlet (14), oil outlet pipe (11) and oil return pipe (13) also are provided with the one-way pressure-limit valve that is made of elastic component (28) and sealing member (27).
3, brake anti-lock device according to claim 1 is characterized in that there is a mass (17) inside of acceleration pick-up (4), establishes an elastic beam (18) or establish a piezoceramic and connect to ground on the shell of acceleration pick-up (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236226 CN2233344Y (en) | 1995-02-19 | 1995-02-19 | Brake anti-blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95236226 CN2233344Y (en) | 1995-02-19 | 1995-02-19 | Brake anti-blocking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233344Y true CN2233344Y (en) | 1996-08-21 |
Family
ID=33879285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95236226 Expired - Fee Related CN2233344Y (en) | 1995-02-19 | 1995-02-19 | Brake anti-blocking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233344Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677940A (en) * | 2021-01-08 | 2021-04-20 | 浙江农林大学暨阳学院 | Red light response timely braking system and control method |
-
1995
- 1995-02-19 CN CN 95236226 patent/CN2233344Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677940A (en) * | 2021-01-08 | 2021-04-20 | 浙江农林大学暨阳学院 | Red light response timely braking system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Yongqian Document name: payment instructions |
|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Yongchun Document name: Notice of termination |
|
| 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 |