CN205589208U - Vapour -pressure type electron parking system that possesses emergency brake - Google Patents
Vapour -pressure type electron parking system that possesses emergency brake Download PDFInfo
- Publication number
- CN205589208U CN205589208U CN201620390848.4U CN201620390848U CN205589208U CN 205589208 U CN205589208 U CN 205589208U CN 201620390848 U CN201620390848 U CN 201620390848U CN 205589208 U CN205589208 U CN 205589208U
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- Prior art keywords
- parking braking
- valve
- normally closed
- solenoid valve
- parking
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Abstract
The utility model discloses a vapour -pressure type electron parking system that possesses emergency brake, include parking braking controller (5) that the brake unit electricity of driving a vehicle after with is connected, still include respectively with fast sensor (14) of electronic control switch (13), revolver and the fast sensor (15) of right side wheel that parking braking controller (5) electricity is connected, after drive a vehicle brake unit and include gas holder (1), relay valve (6), the 1st ABS solenoid valve (7), left parking braking air chamber (11), the 2nd ABS solenoid valve (8), right parking braking air chamber (12). The utility model discloses a vapour -pressure type electron parking system can prevent wheel locking during the emergency brake, and stability is good, and the reliability is high.
Description
Technical field
This utility model belongs to medium-heavy automobile parking braking system technical field, a kind of gas possessing emergency brake
Pressure type electronic parking system.
Background technology
The safety of automobile and comfortableness, especially during emergency brake, the stability of vehicle increasingly receives publicity.According to investigations,
The major traffic accidents of 2/3 are all relevant with sideslip, whipping, unstability, and 25% vehicle accident and 60% that casualties occurs
Fatal vehicle accident is mainly attributed to break away.And break away, whipping main reason is that wheel lock up.After wheel lock up,
Wheel lateral traction is almost nil, easily loss of stability, and in emergency circumstances, due to fear, driver is difficult to right
The vehicle of unstability carries out correct manipulation.Therefore, during emergency brake, prevent wheel lock up and ensure intact stability very
Important.
Chinese invention patent application " integrated form automatic parking brake device " (application number: 201410062150.5, publication date:
2014.5.7) a kind of integrated form automatic parking brake device is disclosed, as shown in Figure 1.Rear service brake in this device
Unit includes the second air accumulator, relay valve, the first normally open solenoid valve and the rear service brake air chamber being sequentially connected by gas circuit,
Also including foot brake valves, the first air inlet of described foot brake valves and the second air accumulator are connected, and its first gas outlet is with described
The control mouth of relay valve is connected, and the gas circuit between described first normally open solenoid valve and rear service brake air chamber is provided with first
Baroceptor, described first normally open solenoid valve and the first baroceptor all electrically connect with ECU.
Rear parking braking system in this integrated form automatic parking brake device there is problems in that
1. parking braking uses common normally closed solenoid valve, and such electromagnetic valve bore is less, and delayed relatively big, reaction is slow,
The requirement of anti-lock function can not be met；
2. about, parking braking air chamber is only controlled, during emergency brake by one group of electromagnetic valve, it is impossible to about independent control
The brake force of wheel, stability is bad.
Summary of the invention
The purpose of this utility model is to provide a kind of air-pressure type electronic parking system possessing emergency brake, can prevent wheel
Locking, good stability, reliability is high.
The technical solution realizing this utility model purpose is:
A kind of air-pressure type electronic parking system possessing emergency brake, including the parking system electrically connected with rear service brake unit
Movement controller, also include the electronic control switch electrically connected with described parking braking controller respectively, left wheel speed sensors and
Right wheel speed sensors.
Preferably, described rear service brake unit includes air accumulator, relay valve, an ABS electromagnetic valve, left parking braking
Air chamber, the 2nd ABS electromagnetic valve, right parking braking air chamber, described left parking braking air chamber by an ABS electromagnetic valve,
Right parking braking air chamber is connected with the outlet of relay valve by the 2nd ABS electromagnetic valve, the import of described relay valve and air accumulator
It is connected by gas circuit, also includes the first normally closed solenoid valve and the second normally closed solenoid valve, the import of described first normally closed solenoid valve
Being connected with air accumulator, its outlet is connected with the control mouth of relay valve, the control mouth of described relay valve also with the second normally closed electromagnetism
The import of valve is connected.
This utility model compared with prior art, its remarkable advantage:
1, wheel lock up can be prevented: this utility model is in series with ABS between relay valve and left and right parking braking air chamber respectively
Electromagnetic valve, this electromagnetic valve bore is big, reaction is fast, improves the response speed of acting urgent braking system, meets anti-lock function
Requirement；
2, good stability: shorten emergency brake distance, good stability；
3, reliability is high: each electromagnetic valve in this utility model is only performing parking braking, releasing parking braking and meet an urgent need
During braking, the electromagnetic valve short time is energized, it is to avoid it is overheated that electromagnetic valve is electrified for a long time, and protects electromagnetic valve, and reliability carries
High.
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art integrated form automatic parking brake device.Fig. 1 is numbered prior art literary composition
Part is noted, unrelated with label in this utility model.
Fig. 2 this utility model possesses holding parking or the work of non-parked state of the air-pressure type electronic parking system of emergency brake
Schematic diagram.
Fig. 3 is the parking braking fundamental diagram that this utility model possesses the air-pressure type electronic parking system of emergency brake.
Fig. 4 is the releasing parking braking operation principle that this utility model possesses the air-pressure type electronic parking system of emergency brake
Figure.
In Fig. 2-4: 1 air accumulator；2 first normally closed solenoid valves；3 second normally closed solenoid valves；4 first baroceptors；5
Parking braking controller；6 relay valves；7 the oneth ABS electromagnetic valves；71 the oneth ABS electromagnetic valve first coils；72 first
ABS electromagnetic valve the second coil；8 the 2nd ABS electromagnetic valves；81 the 2nd ABS electromagnetic valve first coils；82 the 2nd ABS electricity
Magnet valve the second coil；9 second baroceptors；10 the 3rd baroceptors；11 left parking braking air chambers；12 right sides are stayed
Car brake chamber；13 electronic control switch；14 left wheel speed sensors；15 right wheel speed sensors.
Detailed description of the invention
As in figure 2 it is shown, this utility model possesses the air-pressure type electronic parking system of emergency brake, including with rear service brake
The parking braking controller 5 of unit electrical connection, also includes the electronics control electrically connected respectively with described parking braking controller 5
Switch 13 processed, left wheel speed sensors 14 and right wheel speed sensors 15.
Described rear service brake unit includes air accumulator 1, relay valve the 6, the oneth ABS electromagnetic valve 7, left parking braking air chamber
11, the 2nd ABS electromagnetic valve 8, right parking braking air chamber 12, described left parking braking air chamber 11 is by an ABS electricity
Magnet valve 7, right parking braking air chamber 12 are connected with the outlet of relay valve 6 by the 2nd ABS electromagnetic valve 8, described relay valve
The import of 6 is connected by gas circuit with air accumulator 1, also includes the first normally closed solenoid valve 2 and the second normally closed solenoid valve 3, institute
The import stating the first normally closed solenoid valve 2 is connected with air accumulator 1, and its outlet is connected with the control mouth of relay valve 6, described in continue
The mouth import also with the second normally closed solenoid valve 3 that controls of dynamic valve 6 is connected.
Described parking braking controller 5 is electric with first normally closed solenoid valve the 2, second normally closed solenoid valve the 3, the oneth ABS respectively
Magnet valve the 7, the 2nd ABS electromagnetic valve 8 electrically connects；
Also include first baroceptor the 4, second baroceptor the 9, the 3rd baroceptor 10, described first air pressure
The input of sensor 4 communicates with the control mouth of relay valve 6, and its outfan electrically connects with parking braking controller 5, institute
The input stating the second baroceptor 9 communicates with left parking braking air chamber 11, its outfan and parking braking controller 5
Electrical connection, the input of described 3rd baroceptor 10 communicates with right parking braking air chamber 12, its outfan and parking
Brake monitor 5 electrically connects.
Described first normally closed solenoid valve the 2, second normally closed solenoid valve 3 is 2/2-way normally closed solenoid valve.
A described ABS electromagnetic valve 7 and the 2nd ABS electromagnetic valve 8 are air pressure ABS electromagnetic valve.
This utility model is described below in detail possess the air-pressure type electronic parking system parking braking of emergency brake, release parking
Braking and the work process of emergency brake.
One, parking braking
As it is shown on figure 3, parking braking controller 5 control second normally closed solenoid valve 3 energising open, gases at high pressure respectively from
Parking braking air chamber 11,12, through ABS electromagnetic valve the 7, a 2nd ABS electromagnetic valve 8, enters air by relay valve 6.
Along with the decline of parking braking air chamber 11,12 air pressure, the energy-stored spring in parking braking air chamber resets, and produces parking system
Power, completes parking braking.As in figure 2 it is shown, after parking braking air chamber 11,12 inner high voltage gas discharges, second
Normally closed solenoid valve 3 power-off is closed, and keeps parking braking state.
Two, parking braking is released
As shown in Figure 4, parking braking controller 5 controls the first normally closed solenoid valve 2 energising and opens, and gases at high pressure are from gas storage
Tank 1 enters the control input of relay valve 6 through the first normally closed solenoid valve 2.When relay valve 6 control input atmospherically
After being raised to the specific upper limit, gases at high pressure flow through relay valve 6 respectively through an ABS electromagnetic valve 7 and the 2nd ABS from air accumulator 1
Electromagnetic valve 8 enters in parking braking air chamber 11,12.Meanwhile, parking braking controller 5 detects the second baroceptor 9
With the 3rd baroceptor 10, the atmospheric pressure value of monitoring parking braking air chamber 11,12, when parking braking air chamber 11,12
Force value reach its specific upper limit after, parking display lamp extinguish.Now, parking braking air chamber 11,12 is full of high pressure
Gas, energy-stored spring is compressed, and parking braking releases.As in figure 2 it is shown, when the pressure in parking braking air chamber 11,12
After force value reaches its specific upper limit, the first normally closed solenoid valve 2 power-off is closed, and keeps releasing parking braking state.Meanwhile,
Parking braking controller 5 moment detects the first baroceptor 4, when its force value is less than the specific upper limit, controls first
Normally closed solenoid valve 2 energising is opened, until relay valve 6 controls after input atmospheric pressure value reaches the specific upper limit, to cut out first normal
Close electromagnetic valve 2, such cycle detection.
Three, emergency brake
The instruction that parking braking controller 5 is applied by electronic control switch 13 according to driver, regulates emergency brake power
Intensity, and at any time can by control electronic control switch 13, exit emergency brake.
During emergency brake, coil 71,72,81,82 is energized, parking braking air chamber 11,12 by ABS electromagnetic valve 7,
8 aerofluxuss, meanwhile, parking braking controller 5 moment detected air pressure sensor 9,10, when wheel braking force reaches to be wanted
During the force value asked, control coil 72,82 power-off, make wheel braking force keep constant, and when wheel slip is less than
During good slip rate, do not excite anti-lock function.
Along with the increase of severity of braking, wheel slip rises, and when wheel slip is more than optimal slip ratio, starts anti-
Locking function is as it is shown on figure 3, control the first normally closed solenoid valve 2 is energized, coil 71,81,72,82 power-off, right
Parking braking air chamber 11,12 is inflated, and reduces wheel braking force, when wheel slip is less than optimal slip ratio, controls
Coil 71,81,72,82 is energized, and to parking braking air chamber 11,12 aerofluxus, increases wheel braking force, so circulates,
Holding wheel slip is near optimal slip ratio, until speed is zero or driver is by controlling electronic control switch 13
Exit emergency brake state.When speed is zero, control all electromagnetic valve power-off, as it is shown in figure 1, vehicle keeps parking
On-position, when driver exits emergency brake by controlling electronic control switch 13, controls the first normally closed solenoid valve 2
Energising, coil 71,81,72,82 power-off, when the numerical value of the first baroceptor 4 reaches the specific upper limit, control
First normally closed solenoid valve 2 power-off, as in figure 2 it is shown, keep releasing parking braking state.
Claims (4)
1. possess an air-pressure type electronic parking system for emergency brake, including with staying that rear service brake unit electrically connects
Car brake monitor (5), it is characterised in that: also include the electricity electrically connected respectively with described parking braking controller (5)
Son controls switch (13), left wheel speed sensors (14) and right wheel speed sensors (15).
Air-pressure type electronic parking system the most according to claim 1, it is characterised in that: described rear service brake list
Unit include air accumulator (1), relay valve (6), an ABS electromagnetic valve (7), left parking braking air chamber (11), second
ABS electromagnetic valve (8), right parking braking air chamber (12), described left parking braking air chamber (11) passes through an ABS electromagnetism
Valve (7), right parking braking air chamber (12) are connected with the outlet of relay valve (6) by the 2nd ABS electromagnetic valve (8),
The import of described relay valve (6) is connected by gas circuit with air accumulator (1), also include the first normally closed solenoid valve (2) and
Second normally closed solenoid valve (3), the import of described first normally closed solenoid valve (2) is connected with air accumulator (1), its outlet with
The control mouth of relay valve (6) is connected, the control mouth of described relay valve (6) also with the entering of the second normally closed solenoid valve (3)
Mouth is connected.
Air-pressure type electronic parking system the most according to claim 2, it is characterised in that: described parking braking controls
Device (5) respectively with the first normally closed solenoid valve (2), the second normally closed solenoid valve (3), an ABS electromagnetic valve (7),
Two ABS electromagnetic valve (8) electrical connections；
Also include the first baroceptor (4), the second baroceptor (9), the 3rd baroceptor (10), described
The input of the first baroceptor (4) communicates with the control mouth of relay valve (6), and its outfan controls with parking braking
Device (5) electrically connects, and the input of described second baroceptor (9) communicates with left parking braking air chamber (11), its
Outfan electrically connects with parking braking controller (5), the input of described 3rd baroceptor (10) and right parking
Brake chamber (12) communicates, and its outfan electrically connects with parking braking controller (5).
Air-pressure type electronic parking system the most according to claim 2, it is characterised in that: described first normally closed electromagnetism
Valve (2), the second normally closed solenoid valve (3) are 2/2-way normally closed solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390848.4U CN205589208U (en) | 2016-05-03 | 2016-05-03 | Vapour -pressure type electron parking system that possesses emergency brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390848.4U CN205589208U (en) | 2016-05-03 | 2016-05-03 | Vapour -pressure type electron parking system that possesses emergency brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205589208U true CN205589208U (en) | 2016-09-21 |
Family
ID=56933533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620390848.4U Withdrawn - After Issue CN205589208U (en) | 2016-05-03 | 2016-05-03 | Vapour -pressure type electron parking system that possesses emergency brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205589208U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001434A (en) * | 2017-12-28 | 2018-05-08 | 天津清智科技有限公司 | A kind of automatic emergency brake system and control method |
| CN105905087B (en) * | 2016-05-03 | 2019-04-16 | 南京理工大学 | The air-pressure type electronic parking system for having emergency brake |
| CN109715458A (en) * | 2016-09-22 | 2019-05-03 | 纽约气闸有限公司 | Electronically controlled pneumatic (ECP) superposing control valve |
| CN111038469A (en) * | 2019-12-30 | 2020-04-21 | 潍柴动力股份有限公司 | Electronic parking system and method |
-
2016
- 2016-05-03 CN CN201620390848.4U patent/CN205589208U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105905087B (en) * | 2016-05-03 | 2019-04-16 | 南京理工大学 | The air-pressure type electronic parking system for having emergency brake |
| CN109715458A (en) * | 2016-09-22 | 2019-05-03 | 纽约气闸有限公司 | Electronically controlled pneumatic (ECP) superposing control valve |
| CN108001434A (en) * | 2017-12-28 | 2018-05-08 | 天津清智科技有限公司 | A kind of automatic emergency brake system and control method |
| CN111038469A (en) * | 2019-12-30 | 2020-04-21 | 潍柴动力股份有限公司 | Electronic parking system and method |
| CN111038469B (en) * | 2019-12-30 | 2021-10-29 | 潍柴动力股份有限公司 | Electronic parking system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160921 Effective date of abandoning: 20190416 |