CN103287416A - Vacuum boosting method of automotive brake with emergency braking assisting function - Google Patents
Vacuum boosting method of automotive brake with emergency braking assisting function Download PDFInfo
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- CN103287416A CN103287416A CN2013101695605A CN201310169560A CN103287416A CN 103287416 A CN103287416 A CN 103287416A CN 2013101695605 A CN2013101695605 A CN 2013101695605A CN 201310169560 A CN201310169560 A CN 201310169560A CN 103287416 A CN103287416 A CN 103287416A
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- valve
- valve seat
- guiding
- guiding valve
- emergency braking
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Abstract
The invention discloses a vacuum boosting method of an automotive brake with an emergency braking assisting function. Vacuum boosting is achieved by an automobile braking vacuum booster with an emergency braking assisting function. When a driver pedals a brake pedal at the speed above 800m/s, a slide valve hook generates deformation and is disconnected with a protrusion on a slide valve, and then the slide valve is free from constraint of the slide valve hook to move right so as to squeeze a rubber valve seat, so that a distance between the rubber valve seat and an air valve seat is increased rapidly, resistance to air of a rear cavity during flowing is reduced, flow of the air of the rear cavity is increased, further braking force is increased rapidly, and quick boosting during emergency braking is achieved. By the method, in the initial stage of emergency braking, braking force can be increased rapidly, and braking distance during emergency braking is shortened. Compared with an existing booster, the vacuum booster has the advantages of rapid response, simple structure, good reliability, high practicality, irrelevance of boosting amplitude and pedal travel and the like.
Description
Technical field
The present invention relates to the drg boosting method, relate in particular to a kind of vacuum servo method of the car brake with the emergency braking additional function.
Background technology
In order to tackle precipitate accident and dangerous situation, promote the deceleration and stopping performance of automobile, strengthen the safety of automobile, reduction is because braking the untimely personal casualty that causes, common configuration is on various types of automobiles for automobile brake booster, and the automobile brake vacuum booster also becomes one of accessory the most frequently used on the automobile.
Existing automobile brake vacuum booster is applied with braking force, generally relies on brake-pedal travel to control the size of braking force: pedal is stepped on more deeply, and the braking force that applies is more big.Still there is certain problem in such power-assisted mode on using: when the emergency situation that needs snap catch occurs, often need brake system to apply big braking force fast, thereby realize the quick deceleration of vehicle.And existing force aid system is trampled in the process of brake pedal at chaufeur, and braking force increases gradually, needed snap catch in the time of can't realizing emergency situation.People urgently wish a kind of new car brake vacuum servo method at present, solve real-life problem.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of vacuum servo method of the car brake with the emergency braking additional function is provided.
A kind of vacuum servo method of the car brake with the emergency braking additional function, automobile brake vacuum booster by band emergency braking additional function realizes that the automobile brake vacuum booster of band emergency braking additional function comprises reaction plate, inner valve body, guiding valve, guiding valve hook, air valve seat, opens spring, O type circle, rubber valve seat, valve body, return spring, valve rod, steel wire collar; The air valve seat is provided with the taper convex shoulder, and guiding valve is provided with projection, and the guiding valve hook is provided with bayonet socket; Reaction plate is fixing on the inner body, valve liner on the inner body, the guiding valve hook is fixed on the guiding valve via projection, steel wire collar is nested in the bayonet socket on the guiding valve hook, the air valve seat have taper convex shoulder one side shaft to fixing on the inner body, air valve seat opposite side is connected with valve rod, taper convex shoulder on the air valve seat and guiding valve clasp joint touch, spring is connected with valve body guiding valve and by the sealing of O type circle, return spring one end is fixed on the valve body via opening, and the return spring other end is connected with rubber valve seat; Vacuum servo method concrete steps are as follows:
1) during emergency braking, step on brake pedal with the speed more than the 80mm/s, brake pedal drives valve rod to left movement;
2) valve rod drives the air valve seat be attached thereto and moves to the left, and the taper convex shoulder that is located at simultaneously on the air valve seat pushes the guiding valve hook left;
3) guiding valve is hooked under the squeezing action of taper convex shoulder, produces the projection on distortion and the disengaging guiding valve, makes guiding valve break away from the constraint of guiding valve hook;
4) guiding valve that breaks away from constraint is being opened under the effect of spring spring force, move to the right up to contact with rubber valve seat and with its sealing;
5) guiding valve is with after rubber valve seat contacts, and rubber valve seat is subjected to the impact effect of guiding valve, and the pressed home spring also moves right, and the distance between this moment rubber valve seat and the air valve seat increases rapidly;
6) after the distance between rubber valve seat and the air valve seat increased rapidly, the resistance that the back cavity air is subjected to when flowing reduced, flow increases, and then braking force is increased rapidly, the quick power-assisted when realizing emergency braking;
7) because the return spring that compressed by the guiding valve impact effect recovers former length gradually, promote the rubber valve seat that is attached thereto simultaneously left;
8) rubber valve seat drives the temporary transient guiding valve that contacts with it together to left movement, up to rubber valve seat guiding valve is back into initial position;
9) after finishing emergency braking, loosen the brake, brake pedal drives valve rod and moves right;
10) valve rod drives the air valve seat be attached thereto and moves to the right, and the taper convex shoulder that is located at simultaneously on the air valve seat is removed the squeezing action of guiding valve hook;
11) Bian Xing guiding valve hook is replied prototype gradually, retrains the guiding valve of reposition again by projection, finishes the emergency braking process.
This method is when emergency braking, stepping on speed when brake pedal reaches more than the 80mm/s, can open the emergency braking additional function automatically, make the size moment of opening between rubber valve seat and the air valve seat become big, thereby the charge air of back cavity is increased, braking force is produced jump rank to change, promote effective braking force, strengthen braking effect.Can promote the braking force size rapidly at the emergency braking initial stage, the braking distance when shortening emergency braking.Compare with existing servo-unit, have rapid, simple in structure, the good reliability of response, applicability strong, power-assisted amplitude and advantages such as pedal stroke has nothing to do.
Description of drawings
Fig. 1 is the structural representation of the automobile brake vacuum booster of band emergency braking additional function;
Fig. 2 is guiding valve hook structure scheme drawing;
Fig. 3 is the steel wire collar scheme drawing;
Structural representation when Fig. 4 does not work for the automobile brake vacuum booster of band emergency braking additional function;
Structural representation when Fig. 5 works for the automobile brake vacuum booster of band emergency braking additional function.
Among the figure, reaction plate 1, inner valve body 2, guiding valve 3, guiding valve hook 4, taper convex shoulder 5, air valve seat 6, unlatching spring 7, O type circle 8, rubber valve seat 9, valve body 10, return spring 11, valve rod 12, bayonet socket 13, steel wire collar 14, projection 15.
The specific embodiment
As shown in Figure 1, 2, 3, a kind of vacuum servo method of the car brake with the emergency braking additional function, automobile brake vacuum booster by band emergency braking additional function realizes that the automobile brake vacuum booster of band emergency braking additional function comprises reaction plate 1, inner valve body 2, guiding valve 3, guiding valve hook 4, air valve seat 6, opens spring 7, O type circle 8, rubber valve seat 9, valve body 10, return spring 11, valve rod 12, steel wire collar 14; Air valve seat 6 is provided with taper convex shoulder 5, and guiding valve 3 is provided with projection 15, and guiding valve hook 4 is provided with bayonet socket 13; Reaction plate 1 is fixed on the inner valve body 2.Guiding valve 3 is enclosed within on the inner valve body 2, guiding valve hook 4 is fixed on the guiding valve 3 via projection 15, steel wire collar 14 is nested in the bayonet socket 13 on the guiding valve hook 4, air valve seat 6 has taper convex shoulder 5 one side shafts to being fixed on the inner valve body 2, air valve seat 6 opposite sides are connected with valve rod 12, and the taper convex shoulder 5 on the air valve seat 6 contacts with guiding valve hook 4, and spring 7 is connected with valve body 10 guiding valve 3 and pass through 8 sealings of O type circle via opening, return spring 11 1 ends are fixed on the valve body 10, and return spring 11 other ends are connected with rubber valve seat 9; Vacuum servo method concrete steps are as follows:
When 1) the automobile brake vacuum booster of band emergency braking additional function is not worked, be in the state of Fig. 4, during emergency braking, step on brake pedal with the speed more than the 80mm/s, brake pedal drives valve rod 12 to left movement;
2) valve rod 12 drives the air valve seat 6 that is attached thereto and moves to the left, and the taper convex shoulder 5 that is located at simultaneously on the air valve seat 6 pushes guiding valve hook 4 left;
3) guiding valve hook 4 produces the projection 15 on distortion and the disengaging guiding valve under the squeezing action of taper convex shoulder 5, makes guiding valve 3 break away from the constraint of guiding valve hooks 4;
4) guiding valve 3 that breaks away from constraint is being opened under the spring 7 spring force effects, move to the right up to contact with rubber valve seat 9 and with its sealing;
5) guiding valve 3 is with after rubber valve seat 9 contacts, rubber valve seat 9 is subjected to the impact effect of guiding valve 3, pressed home spring 11 also moves right, and the distance between rubber valve seat 9 and the air valve seat 6 increases rapidly at this moment, is in the state of Fig. 5 this moment with the automobile brake vacuum booster of emergency braking additional function;
6) after the distance between rubber valve seat 9 and the air valve seat 6 increased rapidly, the resistance that the back cavity air is subjected to when flowing reduced, flow increases, and then braking force is increased rapidly, the quick power-assisted when realizing emergency braking;
7) because the return spring 11 that compressed by guiding valve 3 impact effects recovers former length gradually, promote the rubber valve seat 9 that is attached thereto simultaneously left;
8) rubber valve seat 9 drives the temporary transient guiding valve 3 that contacts with it together to left movement, up to rubber valve seat 9 guiding valve 3 is back into initial position;
9) after finishing emergency braking, loosen the brake, brake pedal drives valve rod 12 and moves right;
10) valve rod 12 drives the air valve seat 6 that is attached thereto and move to the right, is located at the squeezing action releasing of the 5 pairs of guiding valve hooks of taper convex shoulder on the air valve seat 6 simultaneously;
11) Bian Xing guiding valve hook 4 is replied prototype gradually, and by protruding 15 guiding valves 3 that retrain reposition that surpass, the automobile brake vacuum booster of band emergency braking additional function comes back to Fig. 4 state, finishes the emergency braking process again.
Claims (1)
1. vacuum servo method with the car brake of emergency braking additional function, automobile brake vacuum booster by band emergency braking additional function realizes that the automobile brake vacuum booster of band emergency braking additional function comprises reaction plate (1), inner valve body (2), guiding valve (3), guiding valve hook (4), air valve seat (6), opens spring (7), O type circle (8), rubber valve seat (9), valve body (10), return spring (11), valve rod (12), steel wire collar (14); Air valve seat (6) is provided with taper convex shoulder (5), and guiding valve (3) is provided with projection (15), and guiding valve hook (4) is provided with bayonet socket (13); Reaction plate (1) is fixed on the inner valve body (2), guiding valve (3) is enclosed within on the inner valve body (2), guiding valve hook (4) is fixed on the guiding valve (3) via projection (15), steel wire collar (14) is nested in the bayonet socket (13) on the guiding valve hook (4), air valve seat (6) has taper convex shoulder (5) one side shafts to being fixed on the inner valve body (2), air valve seat (6) opposite side is connected with valve rod (12), taper convex shoulder (5) on the air valve seat (6) contacts with guiding valve hook (4), guiding valve (3) is connected with valve body (10) via unlatching spring (7) and seals by O type circle (8), return spring (11) one ends are fixed on the valve body (10), and return spring (11) other end is connected with rubber valve seat (9); It is characterized in that vacuum servo method concrete steps are as follows:
1) during emergency braking, step on brake pedal with the speed more than the 80mm/s, brake pedal drives valve rod (12) to left movement;
2) valve rod (12) drives the air valve seat (6) be attached thereto and moves to the left, and the taper convex shoulder (5) that is located at simultaneously on the air valve seat (6) pushes guiding valve hook (4) left;
3) guiding valve hook (4) produces the projection (15) on distortion and the disengaging guiding valve under the squeezing action of taper convex shoulder (5), makes guiding valve (3) break away from the constraint of guiding valve hook (4);
4) guiding valve (3) that breaks away from constraint is being opened under spring (7) the spring force effect, move to the right up to contact with rubber valve seat (9) and with its sealing;
5) guiding valve (3) is with after rubber valve seat (9) contacts, and rubber valve seat (9) is subjected to the impact effect of guiding valve (3), and pressed home spring (11) also moves right, and the distance between this moment rubber valve seat (9) and the air valve seat (6) increases rapidly;
6) after the distance between rubber valve seat (9) and the air valve seat (6) increased rapidly, the resistance that the back cavity air is subjected to when flowing reduced, flow increases, and then braking force is increased rapidly, the quick power-assisted when realizing emergency braking;
7) because the return spring (11) that compressed by guiding valve (3) impact effect recovers former length gradually, promote the rubber valve seat (9) that is attached thereto simultaneously left;
8) rubber valve seat (9) drives the temporary transient guiding valve (3) that contacts with it together to left movement, up to rubber valve seat (9) guiding valve (3) is back into initial position;
9) after finishing emergency braking, loosen the brake, brake pedal drives valve rod (12) and moves right;
10) valve rod (12) drives the air valve seat (6) be attached thereto and move to the right, is located at taper convex shoulder (5) on the air valve seat (6) simultaneously to the squeezing action releasing of guiding valve hook;
11) Bian Xing guiding valve hook (4) is replied prototype gradually, retrains the guiding valve (3) of reposition again by projection (15), finishes the emergency braking process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101695605A CN103287416A (en) | 2013-05-10 | 2013-05-10 | Vacuum boosting method of automotive brake with emergency braking assisting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101695605A CN103287416A (en) | 2013-05-10 | 2013-05-10 | Vacuum boosting method of automotive brake with emergency braking assisting function |
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| Publication Number | Publication Date |
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| CN103287416A true CN103287416A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101695605A Pending CN103287416A (en) | 2013-05-10 | 2013-05-10 | Vacuum boosting method of automotive brake with emergency braking assisting function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661342A (en) * | 2013-12-23 | 2014-03-26 | 浙江亚太机电股份有限公司 | Automobile vacuum booster with mechanical emergency braking auxiliary system function |
| CN105711572A (en) * | 2016-01-28 | 2016-06-29 | 吉林东光奥威汽车制动系统有限公司 | Dual-atmospheric valve port mechanical driving mechanism of vacuum booster |
| CN108679117A (en) * | 2018-06-26 | 2018-10-19 | 北京光宇之勋科技有限公司 | A kind of braking force control mechanism |
| CN112874496A (en) * | 2021-02-26 | 2021-06-01 | 高小明 | Vacuum booster for automobile braking |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6755116B1 (en) * | 1999-10-29 | 2004-06-29 | Aisin Seiki Kabushiki Kaisha | Negative pressure type booster |
| CN1613702A (en) * | 2003-11-04 | 2005-05-11 | 株式会社爱德克斯 | Negative pressure type booster |
| CN202016460U (en) * | 2011-01-10 | 2011-10-26 | 陈光华 | Automobile brake vacuum booster with function of emergency brake assist |
-
2013
- 2013-05-10 CN CN2013101695605A patent/CN103287416A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6755116B1 (en) * | 1999-10-29 | 2004-06-29 | Aisin Seiki Kabushiki Kaisha | Negative pressure type booster |
| CN1613702A (en) * | 2003-11-04 | 2005-05-11 | 株式会社爱德克斯 | Negative pressure type booster |
| CN202016460U (en) * | 2011-01-10 | 2011-10-26 | 陈光华 | Automobile brake vacuum booster with function of emergency brake assist |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661342A (en) * | 2013-12-23 | 2014-03-26 | 浙江亚太机电股份有限公司 | Automobile vacuum booster with mechanical emergency braking auxiliary system function |
| CN105711572A (en) * | 2016-01-28 | 2016-06-29 | 吉林东光奥威汽车制动系统有限公司 | Dual-atmospheric valve port mechanical driving mechanism of vacuum booster |
| CN108679117A (en) * | 2018-06-26 | 2018-10-19 | 北京光宇之勋科技有限公司 | A kind of braking force control mechanism |
| CN112874496A (en) * | 2021-02-26 | 2021-06-01 | 高小明 | Vacuum booster for automobile braking |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |