CN206598840U - A kind of Pneumatic braking system with active brake function - Google Patents
A kind of Pneumatic braking system with active brake function Download PDFInfo
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- CN206598840U CN206598840U CN201720221770.8U CN201720221770U CN206598840U CN 206598840 U CN206598840 U CN 206598840U CN 201720221770 U CN201720221770 U CN 201720221770U CN 206598840 U CN206598840 U CN 206598840U
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Abstract
The utility model belongs to automobile brake technical field, specifically a kind of Pneumatic braking system and control method with active brake function.The system includes pressure source module, pressure adjusting module, performing module；Described pressure source module is used to gather and store gas；Described pressure adjusting module is used to adjust gathered gas；Described performing module is used to realize service brake and measurement wheel wheel speed；Described pressure source module is connected with pressure adjusting module by pipeline, front axle is connected with rear axle；One end of described performing module is connected with front-wheel, trailing wheel, and the other end is connected with pressure adjusting module by pipeline.The utility model is that one kind with independent control Pneumatic braking system axle brake force, can realize the active brake function of car self-adaption cruise system or brake energy recovering system and the Pneumatic braking system with active brake function of anti-lock function and control method.
Description
Technical field
The utility model belongs to automobile brake technical field, specifically a kind of air pressure system with active brake function
Dynamic system.
Background technology
Now with the popularization (such as adaptive cruise technology) and the continuous spy of automatic Pilot technology for driving ancillary technique
Rope, develops the problem of a kind of safe and reliable and with active brake function brakes turns into urgent need to resolve.Drive auxiliary
Technology and automatic Pilot technology are to brakes requirement：One will realize active brake function；Secondly wanting response quickly accurate, make
Brake force, which can be stablized, follows desired braking power.In addition in new-energy automobile, motor braking power participates in braking, it is necessary to air-pressure brake
Power coordinates the change of motor braking power, it is desirable to which the brake force of brakes axle can be with separately adjustable.The utility model proposes
Pneumatic braking system with active brake function can apply on the pure electric coach with adaptive cruise function, may be used also
With applied on the pure electric coach with braking energy recovering function.
The Chinese patent of Application No. 201410421560.4 proposes a kind of vehicle electrically controlling Pneumatic braking system, and it passes through
In driving brake valve two proportion magnetic valves in parallel, active boost function is realized.It has pilot steering and unmanned two kinds
Pattern.But its configuration can only be pressurized and depressurize, without pressure holding function, braking anti-lock function can not be also realized.
Application No. 201610517776.X Chinese patent proposes a kind of pure e-bus braking control system
And its control method, its independent control by installing axle braking force after ASR valves are realized additional in rear axle brake piping, but its configuration
The control of front axle braking force can not be realized, brake force can only be applied to front axle by the method manually braked.
The content of the invention
The utility model, which provides one kind, can realize car with independent control Pneumatic braking system axle brake force
The active brake function and anti-lock function of self-adaption cruise system or brake energy recovering system have active brake work(
The Pneumatic braking system of energy.
Technical solutions of the utility model are described with reference to the drawings as follows：
A kind of Pneumatic braking system with active brake function, the system include pressure source module, pressure adjusting module,
Performing module；Described pressure source module is used to gather and store gas；Described pressure adjusting module, which is used to adjust, to be gathered
Gas；Described performing module is used to realize service brake and measurement wheel wheel speed；Described pressure source module is adjusted with pressure
Section module is connected by pipeline, front axle is connected with rear axle；One end of described performing module is connected with front-wheel, trailing wheel, another
End is connected with pressure adjusting module by pipeline.
Described pressure source module, which includes air pump 26, unloading valve 25, wet gas receiver 24, four-loop protection valve 22, front axle, to be done
Gas receiver 20 and the dry gas receiver 21 of rear axle；Described pressure adjusting module includes brake valve 9, front axle TCS valves 7, rear axle TCS valves
10th, front axle double-way check valve 8, rear axle double-way check valve 11, front axle pressure sensor 28, rear axle pressure sensor 29, front axle three
Logical 3, rear axle threeway 15, front right abs valve 2, front left abs valve 4, rear right abs valve 16, rear left abs valve 14, hand-operated valve 23 and quick release valve
19；Described performing module includes front axle right wheel brake chamber 1, front axle left wheel brake air chamber 5, rear right brake chamber 17, rear left
Brake chamber 13, front right wheel speed sensors 27, front left wheel speed sensors 6, rear right wheel speed sensors 18 and rear left wheel speed sensors
12；
The outlet a of described air pump 26 is connected with the entrance p pipelines of unloading valve 25；The outlet a of described unloading valve 25 with
The entrance p pipelines connection of wet gas receiver 24；The outlet a of described wet gas receiver 24 and the entrance p pipelines of four-loop protection valve 22
Connection；Described four-loop protection valve 22 3 outlets a1, a2, a3 are done with hand-operated valve 23, the dry gas receiver 20 of front axle, rear axle respectively
P mouthfuls of pipeline connections of entrance of gas receiver 21；The outlet a1 of described hand-operated valve 23 is connected with the entrance p pipelines of quick release valve 19；Institute
P1 mouthfuls of ante-chamber, the ante-chamber p1 of rear left brake chamber 13 of outlet a2, the a1 for the quick release valve 19 stated respectively with rear right brake chamber 17
Pipeline is connected；The outlet a3 of described quick release valve 19 is communicated with air；The outlet a of the dry gas receiver 20 of described front axle respectively with it is preceding
The ante-chamber entrance p1 pipelines of p mouthfuls of the entrance of axle TCS valves 7 and brake valve 9 are connected；The outlet a of the dry gas receiver 21 of described rear axle points
Entrance p pipelines not with back cavity entrance p2 and rear axle the TCS valve 10 of brake valve 9 are connected；The outlet a of described front axle TCS valves 7 with
The entrance p1 pipelines connection of front axle double-way check valve 8；Ante-chamber outlet a1 and the front axle double-way check valve 8 of described brake valve 9
Entrance p2 pipelines are connected；The outlet a of described rear axle TCS valves 10 is connected with the entrance p1 pipelines of rear axle double-way check valve 11；Institute
The entrance for the rear axle double-way check valve 11 stated is connected with the back cavity outlet a2 pipelines of brake valve 9；Described front axle double-way check valve 8
Outlet a be connected with p mouthfuls of pipelines of entrance of front axle pressure sensor 28；The outlet a of described pressure sensor 28 and front axle three
Logical 3 entrance p pipelines connection；The outlet a of described rear axle double-way check valve 11 connects with the p mouths pipeline of rear axle pressure sensor 29
Connect；The a mouths of described rear axle pressure sensor 29 are connected with the entrance p pipelines of rear axle threeway 15；Described front axle threeway 3 goes out
Mouth a1, a2 are connected with the entrance p of front right abs valve 2 and the entrance p pipelines of front left abs valve 4 respectively；Described rear axle threeway 15
A1, a2 are connected with the entrance p of rear right abs valve 16 and the entrance p pipelines of rear left abs valve 14 respectively for outlet；Described front right abs valve
2 outlet a is connected with the entrance p pipelines of front axle right wheel brake chamber 1；The outlet a of described front left abs valve 4 and front axle revolver
The entrance p pipelines connection of brake chamber 5；The outlet a of described rear right abs valve 16 and the entrance p2 pipelines of rear right brake chamber 17
Connection；The outlet a of described rear left abs valve 14 is connected with the back cavity entrance p2 pipelines of rear left brake chamber 13；Described front right
The a mouths of abs valve 2, described front axle right wheel brake chamber 1 are connected with front right wheel；Front right is provided with described front right wheel
Wheel speed sensors 27；Described front axle left wheel brake air chamber 5 is connected with preceding left wheel；Front left is provided with described preceding left wheel
Wheel speed sensors 6；Described rear right brake chamber 17 is connected with rear right wheel；Rear right wheel speed is provided with described rear right wheel
Sensor 18；Described rear left brake chamber 13 is connected with rear left wheel；Rear left wheel speed biography is provided with described rear left wheel
Sensor 12.
The beneficial effects of the utility model are：
1st, the configuration that can be independently controlled currently without axle pressure, and the utility model proposes a kind of gas
The dynamic system configuration of compacting, it is possible to achieve the independent control of axle brake pressure.
2nd, the utility model proposes Pneumatic braking system configuration can realize braking anti-lock function.
3rd, the utility model proposes Pneumatic braking system configuration be based on original Pneumatic braking system, by install additional TCS valves,
Abs valve, double-way check valve, pressure sensor are reequiped and obtained.Repacking is easy, and generalization is strong.
4th, the utility model proposes Pneumatic braking system configuration application technology scope it is wide, can be used for car and adaptively patrol
The braking execution level of boat system, the braking execution level of single motor driving electric motor coach brake energy recovering system, Dual-motors Driving
Braking execution level, the braking execution level of the unmanned technology of car of electric motor coach brake energy recovering system.
Brief description of the drawings
Fig. 1 is the structural representation of the Pneumatic braking system described in the utility model with active brake function；
Fig. 2 is the controlling party of the control method of the Pneumatic braking system described in the utility model with active brake function
Method flow chart.
In figure：1st, front axle right wheel brake chamber；2nd, front right abs valve；3rd, front axle threeway；4th, front left abs valve；5th, front axle revolver
Brake chamber；6th, front left wheel speed sensors；7th, front axle TCS valves；8th, front axle double-way check valve；9th, brake valve；10th, rear axle TCS valves；
11st, rear axle double-way check valve；12nd, rear left wheel speed sensors；13rd, rear left brake chamber；14th, rear left abs valve；15th, rear axle threeway；
16th, rear right abs valve；17th, rear right brake chamber；18th, rear right wheel speed sensors；19th, quick release valve；20th, the dry gas receiver of front axle；21、
The dry gas receiver of rear axle；22nd, four-loop protection valve；23rd, hand-operated valve；24th, wet gas receiver；25th, unloading valve；26th, air pump；27th, front right
Wheel speed sensors；28th, front axle pressure sensor；29th, rear axle pressure sensor.
Embodiment
Refering to Fig. 1, a kind of Pneumatic braking system with active brake function, the system includes pressure source module, pressure
Adjustment module, performing module；Mainly by air pump, unloading valve, wet gas receiver, four-loop protection valve, hand-operated valve, two dry gas storage
Cylinder, brake valve, two TCS valves, two double-way check valves, two pressure sensors, two threeways, four abs valves, four brakings
Air chamber is constituted.
Described pressure source module gathers and stores gas, including air pump 26, unloading valve 25, wet gas receiver 24, four loops
Protect valve 22, the dry gas receiver 20 of front axle and the dry gas receiver 21 of rear axle.Described air pump 26 is used to extract outside air, and boil down to
High pressure gas storage is stored in wet gas receiver 24.Described unloading valve 25 is used for the pressure for adjusting compressed air in wet gas receiver 24,
It is allowed to be maintained in defined pressure limit, while making the off-load of air pump 26 dally, reduces power loss.Four described loop protections
Valve 22 ensures that other loops remain to normal work when a certain partial failure.The dry gas receiver 21 of described rear axle is used to store rear axle
High-pressure brake gas.The dry gas receiver 20 of described front axle is used to store front axle high-pressure brake gas.
Described pressure adjusting module is used to adjust gathered gas, including brake valve 9, front axle TCS valves 7, rear axle TCS
Valve 10, front axle double-way check valve 8, rear axle double-way check valve 11, front axle pressure sensor 28, rear axle pressure sensor 29, front axle
Threeway 3, rear axle threeway 15, front right abs valve 2, front left abs valve 4, rear right abs valve 16, rear left abs valve 14, hand-operated valve 23 and put soon
Valve 19.
Described hand-operated valve 23 is used to apply or release parking braking.Described quick release valve 19 is used to release during parking braking
Brake chamber ante-chamber gas.When the p mouths of quick release valve 19 have gases at high pressure, a1 and a2 mouthfuls of closings, when the p mouths of quick release valve 19 are without height
Calm the anger body, a mouthfuls communicate with air；The described connection brake pedal of brake valve 9, for adjusting antero posterior axis brake chamber pressure.Institute
It is normally closed solenoid valve to state front axle TCS valves 7 and rear axle TCS valves 10, controls flowing into and out for gas.The front axle double-way check valve 8
There is two entrances p1, p2 one outlet a with rear axle double-way check valve 11, the higher gas all the way of inlet pressure can be made to enter system
Take offence room.Double-way check valve 8 is connected to front axle brake pipeline.Double-way check valve 11 is connected to rear axle brake piping.The front right
Abs valve 2, front left abs valve 4, rear right abs valve 16, rear left abs valve 14 are direct control type barostats, including diaphragm type enters
Air valve, diaphragm type air bleeding valve and two two-bit triplet solenoid valve blocks are into for adjusting brake chamber 1, brake chamber 5, braking gas
Room 17, the pressure of brake chamber 13.ABS magnetic valves have two lines beam to drive air inlet valve coil and exhaust valve coil, its work respectively
It is as principle：If two lines astragal is not powered on (abs valve unpowered state), p and a mouthfuls of conductings, brake chamber supercharging；If exhaust
Valve coil is powered, and intake valve coil-bar line is not powered on ("on" position of abs valve half), and p and air are communicated, brake chamber decompression, if
Two lines circle is powered (abs valve all-pass electricity condition), p, a mouthfuls of closings, brake chamber pressurize.The front axle pressure sensor 28,
Rear axle pressure sensor 29 is the active pressure sensor that BOSCH companies produce, to detect axle brake pressure.
Described performing module is used to realize service brake and measurement wheel wheel speed, including front axle right wheel brake chamber 1, preceding
Axle left wheel brake air chamber 5, rear right brake chamber 17, rear left brake chamber 13, front right wheel speed sensors 27, front left wheel speed sensors
6th, rear right wheel speed sensors 18 and rear left wheel speed sensors 12.
The front right brake chamber 1, front left brake chamber 5 are the single-chamber brake chamber of front axle right wheel and front axle revolver, are used
In realizing service brake.The rear right brake chamber 17, rear left brake chamber 13 are rear axle right wheel and the two-chamber system of rear axle revolver
Take offence room, back cavity is used to realize that service brake and ante-chamber are used for parking braking.Front right wheel speed sensors 27, front left wheel speed sensors
6th, rear right wheel speed sensors 18, rear left wheel speed sensors 12 are Hall wheel speed sensor, left for measuring front axle right wheel, front axle
Wheel, rear axle right wheel, the wheel wheel speed of rear axle revolver.
A kind of annexation of the Pneumatic braking system with active brake function is as follows：
Air pump 26 is connected by unloading valve 25 with wet gas receiver 24.Wet gas receiver 24 is connected with four-loop protection valve 22.Four
Loop protection valve 22 separates the dry gas receiver and hand-operated valve 23 that three tunnels are respectively connected to axle.For the pneumatic circuit of each axle：
Dry gas receiver separates two-way and is connected to TCS valves and braking valve inlet, and TCS valves and braking valve outlet and a double-way check valve connect
Connect, double-way check valve is connected by pressure sensor with threeway, threeway separates two-way and is connected to brake chamber by abs valve.Hand
Dynamic valve is connected to the brake chamber ante-chamber of rear axle by quick release valve 19.
The outlet a of described air pump 26 is connected with the entrance p pipelines of unloading valve 25；The outlet a of described unloading valve 25 with
The entrance p pipelines connection of wet gas receiver 24；The outlet a of described wet gas receiver 24 and the entrance p pipelines of four-loop protection valve 22
Connection；Described four-loop protection valve 22 3 outlets a1, a2, a3 are done with hand-operated valve 23, the dry gas receiver 20 of front axle, rear axle respectively
P mouthfuls of pipeline connections of entrance of gas receiver 21；The outlet a1 of described hand-operated valve 23 is connected with the entrance p pipelines of quick release valve 19；Institute
P1 mouthfuls of ante-chamber, the ante-chamber p1 of rear left brake chamber 13 of outlet a2, the a1 for the quick release valve 19 stated respectively with rear right brake chamber 17
Pipeline is connected；The outlet a3 of described quick release valve 19 is communicated with air；The outlet a of the dry gas receiver 20 of described front axle respectively with it is preceding
The ante-chamber entrance p1 pipelines of p mouthfuls of the entrance of axle TCS valves 7 and brake valve 9 are connected；The outlet a of the dry gas receiver 21 of described rear axle points
Entrance p pipelines not with back cavity entrance p2 and rear axle the TCS valve 10 of brake valve 9 are connected；The outlet a of described front axle TCS valves 7 with
The entrance p1 pipelines connection of front axle double-way check valve 8；Ante-chamber outlet a1 and the front axle double-way check valve 8 of described brake valve 9
Entrance p2 pipelines are connected；The outlet a of described rear axle TCS valves 10 is connected with the entrance p1 pipelines of rear axle double-way check valve 11；Institute
The entrance for the rear axle double-way check valve 11 stated is connected with the back cavity outlet a2 pipelines of brake valve 9；Described front axle double-way check valve 8
Outlet a be connected with p mouthfuls of pipelines of entrance of front axle pressure sensor 28；The outlet a of described pressure sensor 28 and front axle three
Logical 3 entrance p pipelines connection；The outlet a of described rear axle double-way check valve 11 connects with the p mouths pipeline of rear axle pressure sensor 29
Connect；The a mouths of described rear axle pressure sensor 29 are connected with the entrance p pipelines of rear axle threeway 15；Described front axle threeway 3 goes out
Mouth a1, a2 are connected with the entrance p of front right abs valve 2 and the entrance p pipelines of front left abs valve 4 respectively；Described rear axle threeway 15
A1, a2 are connected with the entrance p of rear right abs valve 16 and the entrance p pipelines of rear left abs valve 14 respectively for outlet；Described front right abs valve
2 outlet a is connected with the entrance p pipelines of front axle right wheel brake chamber 1；The outlet a of described front left abs valve 4 and front axle revolver
The entrance p pipelines connection of brake chamber 5；The outlet a of described rear right abs valve 16 and the entrance p2 pipelines of rear right brake chamber 17
Connection；The outlet a of described rear left abs valve 14 is connected with the back cavity entrance p2 pipelines of rear left brake chamber 13；Described front right
The a mouths of abs valve 2, described front axle right wheel brake chamber 1 are connected with front right wheel；Front right is provided with described front right wheel
Wheel speed sensors 27；Described front axle left wheel brake air chamber 5 is connected with preceding left wheel；Front left is provided with described preceding left wheel
Wheel speed sensors 6；Described rear right brake chamber 17 is connected with rear right wheel；Rear right wheel speed is provided with described rear right wheel
Sensor 18；Described rear left brake chamber 13 is connected with rear left wheel；Rear left wheel speed biography is provided with described rear left wheel
Sensor 12.
Pneumatic braking system work process is as follows：
Driver's pattern service braking system course of work：
Front axle TCS valves 7, front axle TCS valves 10 are closed all the time.Driver's brake pedal, drives brake valve 9
Ante-chamber and back cavity valve open, tread depths are bigger, and valve opening is bigger, and air mass flow is bigger.Pressure-air is done by front axle
The a mouths of gas receiver 20 come out p1 mouthfuls of ante-chamber for entering brake valve 9, out enter front axle pair from a1 mouthfuls after the current limliting of brake valve 9
The p2 mouths of logical check valve 8.The p1 mouths of front axle double-way check valve 8 are without gases at high pressure, therefore the p2-a mouths of front axle double-way check valve 22
Conducting.Gases at high pressure come out the front axle pressure sensor 28 for passing through front axle, front axle threeway 3 from a mouths of front axle double-way check valve 8 and entered
Enter the p mouths of front right abs valve 2 and the p mouths of front left abs valve 4.Front right abs valve 2 and front left abs valve 4 are in unpowered state, p-a2
Mouth conducting, gases at high pressure enter front right brake chamber 1 and front left system by the a2 mouths of front right abs valve 2 and the a2 mouths of front left abs valve 4
Take offence room 5, brake force is applied to front axle right wheel and front axle revolver respectively.
Pressure-air is come out p2 mouthfuls of back cavity for entering brake valve 9 by a mouths of the dry gas receiver 21 of rear axle, is limited by brake valve 9
Out enter the p2 mouths of rear axle double-way check valve 11 after stream from a2 mouthfuls.The p1 mouths of rear axle double-way check valve 11 without gases at high pressure, because
The p2-a mouths conducting of this rear axle double-way check valve 11.Gases at high pressure out pass through rear axle pressure from a mouths of rear axle double-way check valve 11
Force snesor 29, rear axle threeway 15 enter the p mouths of rear right abs valve 16 and the p mouths of rear left abs valve 14.Rear right abs valve 16 and rear left
Abs valve 14 is in unpowered state, and p-a2 mouthfuls turn on, and gases at high pressure are by the a2 mouths of rear right abs valve 16 and the a2 of rear left abs valve 14
Mouth enters the back cavity of rear right brake chamber 17 and the back cavity of rear left brake chamber 13, and rear axle right wheel and rear axle revolver are applied respectively
Brake force.
Boost mode system work process：
After top level control system applies supercharging request to Pneumatic braking system, brake monitor response instruction, front axle TCS
Valve 7 and rear axle TCS valves 10, which are powered, to be opened.
Pressure-air is come out the p mouths for entering front axle TCS valves 7 by a mouths of the dry gas receiver 20 of front axle, by front axle TCS valves 7 from
A mouthfuls out into the p1 mouths of front axle double-way check valve 8.The p2 mouths of front axle double-way check valve 8 are without gases at high pressure, therefore front axle bilateral
The p2-a mouths conducting of check valve 8.Gases at high pressure out enter front right from a mouths of front axle double-way check valve 8 by front axle threeway 3
The p mouths of abs valve 2 and the p mouths of front left abs valve 4.The p-a2 mouths conducting of front right abs valve 2 and front left abs valve 4, gases at high pressure are by preceding
The a2 mouths of right abs valve 2 and the a2 mouths of front left abs valve 4 enter front right brake chamber 1 and front left brake chamber 5, right to front axle respectively
Wheel and front axle revolver apply brake force.
Pressure-air is come out the p mouths for entering rear axle TCS valves 10 by a mouths of the dry gas receiver 21 of rear axle, by rear axle TCS valves 20
Out enter the p2 mouths of rear axle double-way check valve 11 after current limliting from a mouthfuls.The p2 mouths of rear axle double-way check valve 15 without gases at high pressure, because
The p2-a mouths conducting of this rear axle double-way check valve 15.Gases at high pressure out pass through rear axle three from a mouths of rear axle double-way check valve 11
Logical 15 enter the p mouths of the p mouths of rear right abs valve 16 and rear left abs valve 14.The p-a2 mouths of rear right abs valve 16 and rear left abs valve 14 are led
Logical, gases at high pressure enter the back cavity of rear right brake chamber 17 with after by the a2 mouths of rear right abs valve 16 and the a2 mouths of rear left abs valve 14
The back cavity of left brake chamber 13, applies brake force to rear axle right wheel and rear axle revolver respectively.
The pressurize modular system course of work：
After top level control system applies pressurize request to Pneumatic braking system, brake monitor response instruction, front right ABS
Valve 2, front left abs valve 4, rear left abs valve 14, the all-pass electricity condition of rear right abs valve 16.Front axle TCS valves 7 and rear axle TCS valves 10 are powered off.
Brake chamber gas is not connected to pipeline, realizes pressurize.
Pressure reducing mode system work process：
After top level control system applies decompression request to Pneumatic braking system, brake monitor response instruction, front right ABS
Valve 2, front left abs valve 4, rear left abs valve 14, the "on" position of rear right abs valve 16 half, front axle TCS valves 7 and rear axle TCS valves 10 are powered off.
Brake chamber is communicated with air, realizes decompression.
The parking braking system course of work：
Driver's operation parking brake handle grip is placed on parking position, and the a1 mouths of hand-operated valve 23 are communicated with air, quick release valve
P mouthfuls of gases at high pressure are expelled to air by a2 mouthfuls of hand-operated valve in 25.The ante-chamber of rear left brake chamber 13 and rear right brake chamber 17
Gases at high pressure in ante-chamber are expelled to air by quick release valve 19.In the ante-chamber of rear left brake chamber 13 and rear right brake chamber 17
Spring force discharges, and implements parking braking.
Release the parking braking system course of work：
Driver's operation parking brake handle grip is placed on road location, and the a1 mouths of hand-operated valve 23 are communicated with p mouthfuls, wet gas receiver
Gases at high pressure in 24 enter quick release valve 19 by four-loop protection valve 22, hand-operated valve 23, and by the a2 mouths of quick release valve 19, a1 mouthfuls
Into rear right brake chamber 17 and the ante-chamber of rear left brake chamber 13.The spring of brake chamber ante-chamber is pushed back, and releases parking system
It is dynamic.
Refering to Fig. 2, a kind of control method of the Pneumatic braking system with active brake function, the control method include with
Lower step：
Step 1: whether detection active brake flag bit is 1；
Step 2: whether detection wheel has locking tendency, if there is locking tendency to enter anti-lock pattern；
Step 3: distribution antero posterior axis brake pressure；
Step 4: delivery valve control electric current signal.
Described step one is concretely comprised the following steps：Active brake flag bit is sent by entire car controller, and brake monitor connects
By signal, when vehicle demand active brake, active brake mark position 1, if active brake flag bit is 0, front axle TCS valves 7,
Rear axle TCS valves 10, front right abs valve 2, front left abs valve 4, rear right abs valve 16, rear left abs valve 14 are powered off, system initialization, if
Active flag position is 1, performs step 2.
Described step two is concretely comprised the following steps：Detect whether that locking tendency is judged by slip rate, i-th of tire is slided
Shifting rate is calculated as follows shown in formula：
Wherein v is speed, and unit is m/s, and speed is determined by maximum wheel speed method, the maximum meter of 4 tire wheel speeds of selection
Speed is calculated, wheel speed is obtained by wheel speed sensors；ω i are the wheel speed of i-th of wheel, and unit is rad/s；R is the rolling radius of wheel,
Unit is m；If slip rate is more than threshold value S1=20%, tire has locking tendency, step 4 is performed, into anti-lock pattern；
Otherwise step 3 is performed.
Described step three is concretely comprised the following steps：
31) obtained by entire car controller ECU and expect total braking force signal；
32) carload size is obtained by load transducer；
33) f lines group and r are found on the braking force distribution curve map of the vehicle according to carload and expectation total braking force
Corresponding curve in line group, the brake-power balance coefficient corresponding to the intersection point of two lines is ideal braking force distribution coefficient,
It is exactly the vehicle brake-power balance coefficient β that the utility model is taken under the load；
34) according to brake-power balance coefficient β, the desired braking pressure of antero posterior axis distribution is calculated.Before specific calculation is
Axle braking force is multiplied by vehicle equal to brake-power balance coefficient β expects total braking force, and rear axle braking force is that vehicle expects total braking force
Subtract front axle braking force.
Described step four is concretely comprised the following steps：
Antero posterior axis current brake air chamber pressure is obtained by pressure sensor, by antero posterior axis desired braking pressure and antero posterior axis
Current brake pressure ratio is compared with delivery valve control electric current signal；Specific method is：
If i axle desired braking pressure>Current brake pressure, then control the supercharging of i axles：The air inlet valve coil of the axle abs valve and
The equal no power of valve coil is vented, the TCS valves of the axle are powered；
If i axles demand brake pressure=current brake pressure, the pressurize of i axles is controlled：The air inlet valve coil of the axle abs valve
It is powered, is vented valve coil no power, the TCS valves of the axle is powered；
If i axle demand brake pressures<Current brake pressure, then control the decompression of i axles；The air inlet valve coil of the axle abs valve is not
Energization, air bleeding valve coil electricity, the TCS valves of the axle are powered.
Wherein, i axles are front axle either rear axle.
Claims (2)
1. a kind of Pneumatic braking system with active brake function, it is characterised in that the system includes pressure source module, pressure
Adjustment module, performing module；Described pressure source module is used to gather and store gas；Described pressure adjusting module is used to adjust
The gathered gas of section；Described performing module is used to realize service brake and measurement wheel wheel speed；Described pressure source module
It is connected with pressure adjusting module by pipeline, front axle is connected with rear axle；One end of described performing module connects with front-wheel, trailing wheel
Connect, the other end is connected with pressure adjusting module by pipeline.
2. a kind of Pneumatic braking system with active brake function according to claim 1, it is characterised in that described
Pressure source module includes air pump (26), unloading valve (25), wet gas receiver (24), four-loop protection valve (22), the dry gas receiver of front axle
And the dry gas receiver of rear axle (21) (20)；Described pressure adjusting module includes brake valve (9), front axle TCS valves (7), rear axle TCS valves
(10), front axle double-way check valve (8), rear axle double-way check valve (11), front axle pressure sensor (28), rear axle pressure sensor
(29), front axle threeway (3), rear axle threeway (15), front right abs valve (2), front left abs valve (4), rear right abs valve (16), rear left ABS
Valve (14), hand-operated valve (23) and quick release valve (19)；Described performing module includes front axle right wheel brake chamber (1), front axle revolver
Brake chamber (5), rear right brake chamber (17), rear left brake chamber (13), front right wheel speed sensors (27), front left wheel speed sensing
Device (6), rear right wheel speed sensors (18) and rear left wheel speed sensors (12)；The outlet a and unloading valve of described air pump (26)
(25) entrance p pipelines connection；The outlet a of described unloading valve (25) is connected with the entrance p pipelines of wet gas receiver (24)；It is described
The outlet a of wet gas receiver (24) be connected with the entrance p pipelines of four-loop protection valve (22)；Described four-loop protection valve (22)
P mouthfuls of the entrance of three outlets a1, a2, a3 respectively with hand-operated valve (23), the dry gas receiver of front axle (20), the dry gas receiver of rear axle (21) is managed
Road is connected；The outlet a1 of described hand-operated valve (23) is connected with the entrance p pipelines of quick release valve (19)；Described quick release valve (19)
P1 mouthfuls of ante-chamber, the ante-chamber p1 pipelines of rear left brake chamber (13) of outlet a2, a1 respectively with rear right brake chamber (17) are connected；Institute
The outlet a3 for the quick release valve (19) stated is communicated with air；The outlet a of the dry gas receiver of described front axle (20) respectively with front axle TCS valves
(7) the ante-chamber entrance p1 pipelines of p mouthfuls of entrance and brake valve (9) are connected；The outlet a difference of the dry gas receiver of described rear axle (21)
It is connected with the entrance p pipelines of back cavity entrance p2 and rear axle the TCS valve (10) of brake valve (9)；Described front axle TCS valve (7) go out
Mouth a is connected with the entrance p1 pipelines of front axle double-way check valve (8)；Ante-chamber outlet a1 and the front axle bilateral of described brake valve (9)
The entrance p2 pipelines connection of check valve (8)；The described outlet a of rear axle TCS valves (10) and entering for rear axle double-way check valve (11)
Mouth p1 pipeline connections；The entrance of described rear axle double-way check valve (11) is connected with the back cavity outlet a2 pipelines of brake valve (9)；Institute
The outlet a for the front axle double-way check valve (8) stated is connected with p mouthfuls of pipelines of entrance of front axle pressure sensor (28)；Described pressure
The outlet a of sensor (28) is connected with the entrance p pipelines of front axle threeway (3)；The outlet a of described rear axle double-way check valve (11)
It is connected with the p mouth pipelines of rear axle pressure sensor (29)；The a mouths of described rear axle pressure sensor (29) and rear axle threeway (15)
Entrance p pipelines connection；The entrance p and front left of outlet a1, a2 of described front axle threeway (3) respectively with front right abs valve (2)
The entrance p pipelines connection of abs valve (4)；Outlet a1, a2 of described rear axle threeway (15) enters with rear right abs valve (16) respectively
The entrance p pipelines connection of mouth p and rear left abs valve (14)；The outlet a of described front right abs valve (2) and front axle right wheel brake chamber
(1) entrance p pipelines connection；The outlet a of described front left abs valve (4) and the entrance p pipelines of front axle left wheel brake air chamber (5)
Connection；The outlet a of described rear right abs valve (16) is connected with the entrance p2 pipelines of rear right brake chamber (17)；Described rear left
The outlet a of abs valve (14) is connected with the back cavity entrance p2 pipelines of rear left brake chamber (13)；The a of described front right abs valve (2)
Mouth, described front axle right wheel brake chamber (1) are connected with front right wheel；Front right wheel speed sensing is provided with described front right wheel
Device (27)；Described front axle left wheel brake air chamber (5) is connected with preceding left wheel；Front left wheel speed is provided with described preceding left wheel
Sensor (6)；Described rear right brake chamber (17) is connected with rear right wheel；Rear right wheel speed is provided with described rear right wheel
Sensor (18)；Described rear left brake chamber (13) is connected with rear left wheel；Revolver after is provided with described rear left wheel
Fast sensor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221770.8U CN206598840U (en) | 2017-03-08 | 2017-03-08 | A kind of Pneumatic braking system with active brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720221770.8U CN206598840U (en) | 2017-03-08 | 2017-03-08 | A kind of Pneumatic braking system with active brake function |
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| Publication Number | Publication Date |
|---|---|
| CN206598840U true CN206598840U (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720221770.8U Expired - Fee Related CN206598840U (en) | 2017-03-08 | 2017-03-08 | A kind of Pneumatic braking system with active brake function |
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| CN (1) | CN206598840U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106627535A (en) * | 2017-03-08 | 2017-05-10 | 吉林大学 | Air braking system with active braking function and control method |
| CN110077382A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110077384A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110077383A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Four-wheel driven electric vehicle Brake energy recovery gas circuit based on double-way check valve and linear exhaust solenoid valve |
| CN110091848A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two based on stacked unidirectional valve and check valve, which drive electric vehicle brake power, recycles gas circuit |
| CN110091850A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110091849A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110091851A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110103918A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve |
| CN110103919A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel driven electric vehicle Brake energy recovery gas circuit based on stacked unidirectional valve and linear exhaust solenoid valve |
| CN110103917A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two based on stacked unidirectional valve and linear exhaust solenoid valve, which drive electric vehicle brake power, recycles gas circuit |
| CN110103921A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve |
| CN110103920A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve |
| CN110103916A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110103922A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve |
-
2017
- 2017-03-08 CN CN201720221770.8U patent/CN206598840U/en not_active Expired - Fee Related
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| CN106627535A (en) * | 2017-03-08 | 2017-05-10 | 吉林大学 | Air braking system with active braking function and control method |
| CN110077382A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Two-wheeled centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110077384A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110077383A (en) * | 2019-05-22 | 2019-08-02 | 山东理工大学 | Four-wheel driven electric vehicle Brake energy recovery gas circuit based on double-way check valve and linear exhaust solenoid valve |
| CN110091848A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two based on stacked unidirectional valve and check valve, which drive electric vehicle brake power, recycles gas circuit |
| CN110091850A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two-wheeled centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110091849A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110091851A (en) * | 2019-05-22 | 2019-08-06 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve |
| CN110103918A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve |
| CN110103919A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel driven electric vehicle Brake energy recovery gas circuit based on stacked unidirectional valve and linear exhaust solenoid valve |
| CN110103917A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two based on stacked unidirectional valve and linear exhaust solenoid valve, which drive electric vehicle brake power, recycles gas circuit |
| CN110103921A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and check valve |
| CN110103920A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve |
| CN110103916A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Two-wheeled acoustic filed brake energy recovering system of electric vehicle based on double-way check valve and linear exhaust solenoid valve |
| CN110103922A (en) * | 2019-05-22 | 2019-08-09 | 山东理工大学 | Four-wheel centralized driving brake energy recovering system of electric vehicle based on stacked unidirectional valve and linear exhaust solenoid valve |
| CN110077382B (en) * | 2019-05-22 | 2022-01-28 | 山东理工大学 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve |
| CN110103919B (en) * | 2019-05-22 | 2022-02-25 | 山东理工大学 | Four-wheel drive electric vehicle braking energy recovery gas circuit based on stacked one-way valve and linear exhaust electromagnetic valve |
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| CN110103921B (en) * | 2019-05-22 | 2022-02-25 | 山东理工大学 | Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and one-way valve |
| CN110091851B (en) * | 2019-05-22 | 2022-02-25 | 山东理工大学 | Four-wheel centralized drive electric vehicle braking energy recovery system based on stacked one-way valve |
| CN110091848B (en) * | 2019-05-22 | 2022-02-25 | 山东理工大学 | Two-wheel-drive electric vehicle braking energy recovery gas circuit based on stacked one-way valve and one-way valve |
| CN110103917B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Two-wheel-drive electric vehicle braking energy recovery gas circuit based on stacked one-way valve and linear exhaust electromagnetic valve |
| CN110091850B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Two-wheeled centralized driving electric vehicle braking energy recovery system based on stacked one-way valve |
| CN110103920B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve and linear exhaust electromagnetic valve |
| CN110103922B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Four-wheel centralized drive electric vehicle braking energy recovery system based on stacked one-way valve and linear exhaust electromagnetic valve |
| CN110091849B (en) * | 2019-05-22 | 2022-03-04 | 山东理工大学 | Two-wheeled distributed driving electric vehicle braking energy recovery system based on stacked one-way valve |
| CN110103916B (en) * | 2019-05-22 | 2022-03-18 | 山东理工大学 | Two-wheeled distributed drive electric vehicle braking energy recovery system based on two-way check valve and linear exhaust electromagnetic valve |
| CN110077384B (en) * | 2019-05-22 | 2022-03-18 | 山东理工大学 | Four-wheel centralized drive electric vehicle braking energy recovery system based on two-way check valve and linear exhaust electromagnetic valve |
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