CN2318100Y - Automatic compensated emergency brake for vehicle - Google Patents
Automatic compensated emergency brake for vehicle Download PDFInfo
- Publication number
- CN2318100Y CN2318100Y CN 97239761 CN97239761U CN2318100Y CN 2318100 Y CN2318100 Y CN 2318100Y CN 97239761 CN97239761 CN 97239761 CN 97239761 U CN97239761 U CN 97239761U CN 2318100 Y CN2318100 Y CN 2318100Y
- Authority
- CN
- China
- Prior art keywords
- emergency brake
- emergency
- pressure
- wheel cylinder
- brake
- Prior art date
- 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 - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to an automatic compensated emergency brake for cars, which is composed of an accumulator, a master cylinder, branch pumps, pipe passages of the branch pumps, emergency brake chambers and emergency pipe passages, wherein emergency pipe passages of emergency brake chambers on branch pumps in the same outputting pipe passage of the master pump are communicated with another outputting pipe passage of the master pump. The pressure of the branch pumps and the pressure of the emergency brake chambers act on both sides of pressure bearing elements in the emergency brake chambers, and emergency brake action is generated under pressure difference. The device can automatically provide emergency brake action to be compensated when any running brake circuit of an original car generates faults, and thus the circuit which generates the faults is recovered to have a brake function in an undamaged state The utility model can effectively avoid the generation of running accidents caused by circuit faults and has simple structure.
Description
The utility model relates to a kind of emergent brake for automobile, is applicable to the traffic safety that guarantees various vehicles.
Double loop or multiloop are adopted in the service brake loop of existing vehicle more, after guaranteeing losing efficacy in a certain loop, still can make vehicle possess certain residue brake efficiency by remaining intact loop, obviously, this moment, vehicles whose braking forces was lower than normal value, for the double loop vehicle, even the situation of the requirement of brake efficiency out of reach emergency brake usefulness can occur remaining, very easily have an accident.Adopt the vehicle of brake application by spring chamber for some, though can guarantee emergency brake, but because it is to handle by hand control valve (HCV), emergency brake can't be provided when the brake circuit catastrophic failure automatically, and in use can not guarantee the antero posterior axis braking force distribution ratio of vehicle, so can not prevent the generation of train operation accident very effectively.
After a brake circuit lost efficacy in the prior art, car brakeing power just is lower than the defective that normal value and existing energy stroage spring brake structure can't provide emergency brake automatically because of operating delay when the catastrophic failure and can not guarantee car brakeing power distribution ratio, the utility model purpose is: a kind of automatic device is provided, combine with former garage car brake circuit, can in any loop fault of service brake, devote oneself to work automatically emergency brake is provided, make the brake efficiency of fault loop return to the usefulness of loop when intact, and provide the actuating time of braking and steerability all with former garage car braking synchronously, thereby can effectively avoid and reduce the generation of serious accident.
The technical measures of implementing the utility model purpose and taking are as described below: set up the emergency brake chamber and make up with it on former garage car brake repair room (being wheel cylinder), act on the load bearing face of pressure restraining element that pressure in the wheel cylinder acts on the emergency brake chamber simultaneously, set up in addition and answer pipeline that the delivery port or the delivery conduit of emergency brake chamber and brake control valve (being master cylinder) are linked, emergency brake chamber in same master cylinder delivery conduit on the wheel cylinder, its emergency line will link with another delivery port of master cylinder or delivery conduit.According to various vehicle actual conditions, can on one or several loop, set up emergency brake chamber and emergency line thereof, also can be combined with existing brake application by spring chamber.Pressure restraining element pattern in the emergency brake chamber can be a diaphragm type, also can be piston type, but its effective pressure area equates with pressure restraining element in the wheel cylinder.
During normal brake application, the pressure that master cylinder equates to its several delivery conduit outputs, make pressure restraining element pressurized generation braking force in the wheel cylinder, and load bearing face of the pressure restraining element of emergency brake chamber is subjected to acting on the pressure in the wheel cylinder, another load bearing face is subjected to the equal pressure of another delivery conduit input of master cylinder by emergency line, be in the stress balance state, do not produce emergency brake power; When a loop fault makes the wheel cylinder pressure decay, the pressure restraining element both sides of emergency brake chamber form difference of pressure immediately, pressure restraining element forms emergency brake at once and carries out the braking force compensation under the difference of pressure effect, this moment total braking force be wheel cylinder braking force and emergency brake chamber emergency brake power with, if when wheel cylinder pressure reduces to 0, braking force is provided by the emergency brake chamber fully, because wheel cylinder equates with emergency brake chamber pressure restraining element effective pressure area, so braking force equals the loop braking force that wheel cylinder provides under intact situation all the time.
Because the utility model can be devoted oneself to work automatically at arbitrary service brake loop catastrophic failure emergency brake is provided simultaneously, make the function of the brake efficiency of fault loop and other performance recovery performance when intact to the loop, thereby remedied the defective that all will influence vehicle normal brake application usefulness after in the prior art lost efficacy in arbitrary loop, effectively avoided the generation of traffic safety accident; The utility model combines with the brake application by spring chamber, also can make it more perfect:, to avoid the brake application by spring chamber can not guarantee that the antero posterior axis braking force distribution ratio causes the generation of serious accident when inconvenience or operating delay can't provide emergency brake and use automatically because of operating by automatic work of the present utility model.The utility model does not only have negative interaction to former car brake system, and simple in structure, with low cost, need not add any operation during use and just can reach the most safe and reliable effect, and its economic benefit and social benefit are quite remarkable.
In conjunction with the accompanying drawings embodiment of the present utility model is described further now.
Fig. 1 represents the utility model scheme of installation.
1,2 master cylinder delivery conduits, 3,4 emergency lines
5 master cylinders, 6,7 master cylinder chargine lines
8,9 energy storages or receiver
A
1, A
2Wheel cylinder a
1, a
2The wheel cylinder pressure restraining element
B
1, B
2Emergency brake chamber b
1, b
2Emergency brake chamber pressure restraining element
C, d master cylinder delivery port
The former garage car brake circuit of representing with fine line among Fig. 1 mainly comprises 8,9, one master cylinders 5 of two energy storages (or receiver), master cylinder chargine line 6,7, master cylinder delivery conduit 1,2 and the wheel cylinder A that communicates with it
1, A
2Pipeline and element that the utility model is set up are represented by heavy line, are included in wheel cylinder A
1, A
2On the emergency brake chamber B that sets up
1, B
2With emergency line 3,4, act on wheel cylinder A
1, A
2In pressure also act on simultaneously emergency brake chamber B
1, B
2Pressure restraining element b
1, b
2A load bearing face on, emergency brake chamber B
1Link emergency brake chamber B through emergency line 3 and master cylinder delivery port d or master cylinder delivery conduit 2
2Link through emergency line 4 and master cylinder delivery port c or delivery conduit 1; The pressure restraining element b of emergency brake chamber
1, b
2Pattern can be diaphragm type, also piston type, but the pressure restraining element a of its effective pressure area and corresponding wheel cylinder
1, a
2Equate.
Implement glancing impact under the normal circumstances, master cylinder 5 is exported the pressure that equates simultaneously to its delivery conduit 1,2, with wheel cylinder A
2With emergency brake chamber B
2Be example, at this moment wheel cylinder A
2Middle pressure restraining element a
2Be subjected to the pressure of master cylinder delivery conduit 2 inputs to produce braking force, and emergency brake chamber B
2Pressure restraining element b
2A load bearing face is subjected to wheel cylinder A
2In pressure, another load bearing face is subjected to the equal pressure of another delivery conduit of master cylinder 1 input simultaneously by emergency line 4, is in the stress balance state, do not produce emergency brake power, when a loop (comprises energy storage 9, master cylinder input, delivery conduit 7,2, chamber of master cylinder 5 and wheel cylinder A
2) fault makes wheel cylinder A
2During pressure decay because another loop is in serviceable condition, i.e. b
2Another load bearing face still be subjected to normal pressure, so pressure restraining element b2 both sides form difference of pressure, b immediately
2Under the difference of pressure effect, move the emergency brake power that to produce at once and pass to pressure restraining element a
2, this moment, total braking force was wheel cylinder A
2Braking force and emergency brake chamber B
2Emergency brake power and, if wheel cylinder A
2Middle pressure reduces to 0, and then braking force is fully by emergency brake chamber B
2Provide, because their pressure restraining element a
2, b
2Effective pressure area equates, so braking force equals loop wheel cylinder A under intact situation all the time
2The braking force that provides.If wheel cylinder A
1When pressure descends because of another loop fault, emergency brake chamber B
1Can provide emergency brake to carry out the braking force compensation by the pressure of the master cylinder delivery conduit 2 of fault not, like this, when just having realized arbitrary loop fault of former car, this device be all devoted oneself to work immediately automatically, makes the brake efficiency of fault loop return to usefulness when intact; Because control element of the present utility model is exactly former car master cylinder, so it provides the actuating time of braking and steerability also just all synchronous with former car.During brake off, emergency brake chamber B
1, B
2Pressure discharge from master cylinder 5 through emergency line 3,4 separately, thereby with former car wheel cylinder brake off simultaneously.
Claims (3)
1, a kind of emergency brake device of automobile automatic compensation type is mainly by energy storage or receiver (8), (9), master brake cylinder (5), wheel cylinder (A
1), (A
2) and pipeline (1), (2); Emergency brake chamber (B
1), (B
2), emergency line (3), (4) form; It is characterized in that: at former car wheel cylinder (A
1), (A
2) on set up emergency brake chamber (B
1), (B
2) combination with it, act on wheel cylinder (A
1), (A
2) in pressure also act on simultaneously emergency brake chamber (B
1), (B
2) pressure restraining element (b
1), (b
2) a load bearing face on; Set up emergency line (3), (4) in addition with emergency brake chamber (B
1), (B
2) link the wheel cylinder (A in same master cylinder delivery conduit (1), (2) with delivery port (d), (c) or delivery conduit (2), (1) of master cylinder (5)
1), (A
2) on emergency brake chamber (B
1), (B
2), its emergency line (3), (4) will link with another delivery port (d), (c) or delivery conduit (2), (1) of master cylinder (5).
2, by the emergency brake device of the described automobile automatic compensation type of claim 1, it is characterized in that, can be only at wheel cylinder (A
2) on set up emergency brake chamber (B
2) and emergency line (4), carry out the single loop transformation.
3, by the emergency brake device of claim 1 or 2 described automobile automatic compensation types, it is characterized in that emergency brake chamber (B
1), (B
2) in pressure restraining element (b
1), (b
2) pattern can be diaphragm type, also can be piston type, but its effective pressure area and wheel cylinder (A
1), (A
2) middle pressure restraining element (a
1), (a
2) equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239761 CN2318100Y (en) | 1997-07-04 | 1997-07-04 | Automatic compensated emergency brake for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239761 CN2318100Y (en) | 1997-07-04 | 1997-07-04 | Automatic compensated emergency brake for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318100Y true CN2318100Y (en) | 1999-05-12 |
Family
ID=33949675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239761 Expired - Fee Related CN2318100Y (en) | 1997-07-04 | 1997-07-04 | Automatic compensated emergency brake for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318100Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128843A (en) * | 2015-10-16 | 2015-12-09 | 深圳市德塔电动汽车科技有限公司 | Braking hydraulic system |
| CN112776780A (en) * | 2019-11-08 | 2021-05-11 | 比亚迪股份有限公司 | Vehicle brake system and control method thereof |
-
1997
- 1997-07-04 CN CN 97239761 patent/CN2318100Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128843A (en) * | 2015-10-16 | 2015-12-09 | 深圳市德塔电动汽车科技有限公司 | Braking hydraulic system |
| CN105128843B (en) * | 2015-10-16 | 2018-05-18 | 深圳市德塔防爆电动汽车有限公司 | Hydraulic braking system |
| CN112776780A (en) * | 2019-11-08 | 2021-05-11 | 比亚迪股份有限公司 | Vehicle brake system and control method thereof |
| CN112776780B (en) * | 2019-11-08 | 2022-07-15 | 比亚迪股份有限公司 | Vehicle brake system and control method thereof |
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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 |