CN206528471U - A kind of pure electric coach self-adaption cruise system - Google Patents
A kind of pure electric coach self-adaption cruise system Download PDFInfo
- Publication number
- CN206528471U CN206528471U CN201720180862.6U CN201720180862U CN206528471U CN 206528471 U CN206528471 U CN 206528471U CN 201720180862 U CN201720180862 U CN 201720180862U CN 206528471 U CN206528471 U CN 206528471U
- Authority
- CN
- China
- Prior art keywords
- valve
- brake
- signal
- self
- tcs
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Regulating Braking Force (AREA)
Abstract
The utility model belongs to intelligent driving field of auxiliary, discloses a kind of pure electric coach self-adaption cruise system, including be fixed on the millimetre-wave radar of vehicle front；Install axle TCS valves and abs valve on Pneumatic braking system additional；The control method of pure electric coach self-adaption cruise system, comprises the following steps：1st, vehicle self-adaption cruise system mode of operation is judged；2nd, calculate output and expect acceleration or deceleration；If acceleration signal, electric machine controller response signal, to motor output driving current signal are expected in the 3, adaptive cruise decision-making level algorithm output；If deceleration signal, brake monitor response signal, to Pneumatic braking system delivery valve control electric current signal are expected in the algorithm output of adaptive cruise decision-making level；The utility model proposes a kind of self-adaption cruise system framework on pure electric coach, the adaptive cruise function on pure electric coach is realized；Self-adaption cruise system framework is reequiped less to former car, it is easy to accomplish and promote.
Description
Technical field
The utility model belongs to intelligent driving field of auxiliary, and in particular to a kind of pure electric coach self-adaption cruise system and
Control method
Background technology
In recent years, due to environmental degradation, traffic congestion, Frequent Accidents, new-energy automobile field has been expedited the emergence of and intelligence is driven
Sail the fast development of field of auxiliary.Self-adaption cruise system, as one kind of intelligent driving ancillary technique, is in cruise
Technical foundation is developed.The general principle of adaptive cruise is that in vehicle traveling, the spacing sensor of front part of vehicle continues
Road ahead is scanned, while collection vehicle status information.When too small with the distance between front truck, control unit by with motor
Control system, brakes coordination, make vehicle remain safe distance with front vehicles.
Self-adaption cruise system is a kind of intelligent driving accessory system, it is possible to reduce the operation of driver, it is to avoid because driving
The carelessness for the person of sailing and the accident led to.But self-adaption cruise system applies more on car at present, and in pure electric coach
On there is no Patents data.According to the statistics of the Ministry of Public Security, 2015 more due to the caused death toll of operating passenger car accident
Up to 31316 people, the 38.35% of the total death toll of accounting road traffic accident, analysis reason is the safety meaning because driver mostly
Knowing the driving of not enough and fatigue causes.Operating passenger car is more in highway operation, and its features is that travel speed is fast, operating mode
Single, driving time is long, is very easy to cause driver fatigue.Self-adaption cruise system is highly suitable for high-speed working condition, has
The pure electric coach of self-adaption cruise system can fully avoid, due to traffic accident caused by driver fatigue, improving vehicle
Security and economy.
The Chinese patent of Application No. 201310268003.9 proposes a kind of car self-adaption cruise system and controlling party
Method.Its practical Novel main to be used for conventional engines be power source car, and in particular to the framework of self-adaption cruise system and
The course of work, but its patent does not address framework, brakes configuration and work of the self-adaption cruise system in pure electric coach
Process.
The content of the invention
Technical problem to be solved in the utility model is：Propose and self-adaption cruise system is applied on pure electric coach
A solution, specifically propose a kind of self-adaption cruise system framework and control method applied to pure electric coach,
With the Pneumatic braking system configuration and control method applied to pure electric coach self-adaption cruise system.
In order to solve the above technical problems, the utility model adopts the following technical scheme that realization, be described with reference to the drawings as
Under：
A kind of pure electric coach self-adaption cruise system, including battery, battery management system, inverter, electric machine controller,
Motor, speed changer, entire car controller, wheel speed sensors and Pneumatic braking system；
Also include the millimetre-wave radar for being fixed on vehicle front；
Install axle TCS valves and abs valve on the Pneumatic braking system additional；
The abs valve is being installed on the pipeline of brake chamber position；The front axle TCS valves are parallel to before brake control valve
Between axle entrance and exit；The rear axle TCS valves are parallel between brake control valve rear axle entrance and outlet.
The abs valve sets four.
A kind of control method of pure electric coach self-adaption cruise system, comprises the following steps：
Step one：Judge vehicle self-adaption cruise system mode of operation；
Step 2：Calculate output and expect acceleration or deceleration；
Step 3：If adaptive cruise decision-making level algorithm output expectation acceleration signal, electric machine controller response signal, to
Motor output driving current signal；If deceleration signal, brake monitor response are expected in the algorithm output of adaptive cruise decision-making level
Signal, to Pneumatic braking system delivery valve control electric current signal.
Judgement vehicle described in step one enters adaptive cruise mode of operation, and specific execution step is as follows：
A. adaptive cruise switching signal is detected
Adaptive continuation of the journey switching signal is sent by adaptive cruise switch, and adaptive cruise is switched in driver cabin, by
Driver is opened and closed；
If adaptive cruise switch is opened, output signal is 1；If adaptive cruise switch is closed, output signal is 0；
Adaptive cruise switching signal is transmitted to entire car controller ECU by vehicle CAN；
If adaptive cruise switching signal is 1, g steps are performed, if adaptive cruise switching signal is 0, b steps are performed
Suddenly；
B. vehicle driving pedal signal is detected
Vehicle driving pedal signal is produced by driving pedal displacement transducer, if driver steps on driving pedal, output letter
Number be 1；
If driver does not step on driving pedal, output signal is 0；
Driving pedal signal is transmitted to entire car controller ECU by vehicle CAN；
If driving pedal signal is 1, g steps are performed, if driving pedal signal is 0, step c are performed；
C. vehicle brake pedal signal is detected
Vehicle brake pedal signal is produced by brake pedal displacement transducer, if driver's brake pedal, output letter
Number be 1；
If the non-brake pedal of driver, output signal is 0；
Brake pedal signal is transmitted to entire car controller ECU by vehicle CAN；
If brake pedal signal is 1, g steps are performed, if brake pedal signal is 0, Step d are performed；
D. vehicle speed of operation signal is detected
Vehicle travel speed signal is sent by brake monitor, and brake monitor obtains wheel speed by wheel speed sensors to be believed
Number, and obtain vehicle speed of operation signal by calculating；
Brake pedal signal is transmitted to entire car controller ECU by vehicle CAN；
If speed of operation is more than or equal to 150km/h, g steps are performed, if speed of operation is less than 150km/h, e steps are performed
Suddenly；
E. whether detection down time is more than 2s
By brake monitor the duration that speed is 0 is recorded by wheel speed sensors；
If the duration, more than 2s, stop sign is sent to entire car controller ECU, entire car controller ECU receives parking
Signal, performs step g, if not receiving stop sign, performs step f；
F. adaptive cruise pattern works
Adaptive cruise state flag bit flag_ACC puts 1, and system works into adaptive cruise pattern；
G. driver's pattern works
Adaptive cruise state flag bit flag_ACC is set to 0, and system enters driver's pattern, and system work is taken over by driver
Make.
Output is calculated described in step 2 and expects acceleration or deceleration, specific execution step is as follows：
A. adaptive cruise flag bit is detected
Detect whether adaptive cruise flag bit flag_ACC is 1；
If 1, step b is performed, if 0, do not export acceleration signal, EP (end of program)；
B. calculate and expect acceleration or deceleration
Decision-making level's algorithm is built according to Model Predictive Control Theory, according to front truck following distance, speed, this car GES meter
Calculate the expectation acceleration or deceleration signal in vehicle subsequent work cycle.
C. acceleration or deceleration signal are expected in output
If expecting, acceleration signal is more than 0, exports expectation acceleration signal to electric machine controller, exports 0 signal to braking
Controller.If expecting, acceleration signal is less than 0, exports expectation deceleration signal to brake monitor, exports 0 signal and give motor control
Device processed.
Deceleration signal is expected in the response of brake monitor described in step 3, to Pneumatic braking system delivery valve control electric current
Signal；Comprise the following steps that：
A. detection wheel whether locking
By the wheel speed signals of wheel speed sensors detect wheel whether locking, if wheel lock up, into anti-lock pattern, if
The non-locking of wheel, performs step b；
B. antero posterior axis desired braking pressure is distributed
C. delivery valve control electric current signal
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：
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.
The antero posterior axis brake pressure distribution comprises the following steps：
1) the expectation deceleration signal sent by entire car controller ECU is converted into expectation total braking force signal；
2) carload size is obtained by load transducer；
3) brake-power balance coefficient β is determined according to carload；
4) according to brake-power balance coefficient β, the desired braking pressure of antero posterior axis distribution is calculated.
The beneficial effects of the utility model are compared with prior art：
1. the country is not in the Patents of pure electric coach application self-adaption cruise system at present.The utility model proposes
A kind of self-adaption cruise system framework on pure electric coach, realizes the adaptive cruise function on pure electric coach.
2. the active brake system configuration mostly brake fluid system in adaptive cruise is applied at present.It is directed to pure electronic
The characteristics of car air-pressure brake, the utility model proposes the compressed air brake system applied to pure electric coach self-adaption cruise system
System configuration and control method, it is possible to achieve the active brake function of self-adaption cruise system.
3. compared with prior art, self-adaption cruise system framework of the present utility model is reequiped less to former car, it is easy to real
Now and promote.
Brief description of the drawings
Fig. 1 is pure electric coach self-adaption cruise system Organization Chart；
Fig. 2 is pure electric coach self-adaption cruise system workflow diagram；
Fig. 3 is pure electric coach self-adaption cruise system Pneumatic braking system configuration picture；
Fig. 4 is that flow chart is exited in self-adaption cruise system entrance；
Fig. 5 is self-adaption cruise system decision making algorithm control flow chart；
Fig. 6 is adaptive cruise Pneumatic braking system control flow chart；
In figure：1. front axle right wheel brake chamber；2. front axle right wheel abs valve；3. front axle threeway；4. front axle revolver abs valve；5.
Front axle left wheel brake air chamber；6. front axle revolver wheel speed sensors；7. front axle TCS valves；8. front axle double-way check valve；9. brake valve；
10. rear axle TCS valves；11. rear axle double-way check valve；12. rear axle revolver wheel speed sensors；13. rear axle left wheel brake air chamber；14.
Rear axle revolver abs valve；15. rear axle threeway；16. rear axle right wheel abs valve；17. rear axle right wheel brake chamber；18. rear axle right wheel wheel
Fast sensor；19. quick release valve；20. front axle gas receiver；21. rear axle gas receiver；22. four-loop protection valve；23. hand-operated valve；24.
Wet gas receiver；25. unloading valve；26. air pump；27. front axle right wheel wheel speed sensors.
Embodiment
The utility model is explained in detail below in conjunction with the accompanying drawings：
Refering to Fig. 1, be the utility model proposes a kind of self-adaption cruise system Organization Chart applied to pure electric coach.
Including millimetre-wave radar, battery, battery management system (BMS), inverter, electric machine controller, motor, speed changer, full-vehicle control
Device (ECU), Pneumatic braking system, 4 wheel speed sensors.
For the existing part of former car, the part not changed includes entire car controller (ECU), electric machine controller, inversion
Device, motor, battery management system (BMS), battery, speed changer, wheel speed sensors.
The entire car controller (ECU) is the core component of former car, adaptive learning algorithms algorithm is preserved, under control
The action of layer vehicle miscellaneous part controller.
The electric machine controller receives the signal from entire car controller (ECU), by the rotating speed of inverter regulation motor,
Torque.
The direct current of battery is changed into the three-phase alternating current of motor by the inverter, and it includes inverter bridge, control
Logic and driver circuitry is constituted.
The motor is used for the advance or reversing for realizing vehicle.
The battery management system (BMS) is interacted by signal wire with vehicle miscellaneous part controller, exports battery
Working condition is simultaneously realized to functions such as the charge and discharge control of battery, inline diagnosis, heat managements.
The battery provides power resources for the driving traveling of vehicle.
The speed changer is AMT two speed transmissions, changes gearratio.
The wheel speed sensors use Hall wheel speed sensors, obtain vehicle wheel speed using Hall effect principle, are sent to
In ECU.
The existing part of former car is directed to, newly-increased part has millimetre-wave radar, Pneumatic braking system.
What the millimetre-wave radar was selected is Delphi ESR millimetre-wave radars, is that frequency is 76GHz, speed over long distances
For -100~25m/s, it is necessary to which input voltage value is direct current 12V, for detecting vehicle road ahead situation.
The Pneumatic braking system is to redesign to obtain based on original Pneumatic braking system, by installing two TCS valves additional,
4 abs valves realize active brake function.
Millimetre-wave radar is fixed in the middle part of vehicle front bumper, it is ensured that unobstructed with vehicle miscellaneous part, can be detected
Road conditions in front of vehicle.
The Pneumatic braking system installs axle TCS valves, 4 abs valves additional on the original Pneumatic braking system of vehicle.
Abs valve is being installed on the pipeline of brake chamber position.Front axle TCS valves be parallel to brake control valve front axle entrance and
Between outlet；Rear axle TCS valves are parallel between brake control valve rear axle entrance and outlet.
Illustrate the course of work of self-adaption cruise system below：
Refering to Fig. 2, following distance, the speed information of objects ahead vehicle are detected by millimetre-wave radar.And send into ECU certainly
Adapt to cruise system decision making algorithm.Expectation acceleration signal is calculated by decision making algorithm or deceleration signal is expected.Expect to accelerate
Signal output is spent to electric machine controller, electric machine controller is converted into current of electric control signal, turned by inverter control motor
Square.Deceleration signal output is expected to brake monitor, and brake monitor is converted into the current signal of control TCS valves and abs valve,
By controlling TCS valves and abs valve to control brake pressure.
Illustrate the control method of self-adaption cruise system below：
A kind of control method of pure electric coach self-adaption cruise system, step is as follows：
Step one：Judge vehicle self-adaption cruise system mode of operation；
Step 2：Calculate output and expect acceleration or deceleration；
Step 3：If adaptive cruise decision-making level algorithm output expectation acceleration signal, electric machine controller response signal, to
Motor output driving current signal；If deceleration signal, brake monitor response are expected in the algorithm output of adaptive cruise decision-making level
Signal, to Pneumatic braking system delivery valve control electric current signal.
It is judgement vehicle self-adaption cruise system mode of operation flow of the present utility model refering to Fig. 4, vehicle needs basis
Whole vehicle state signal includes adaptive cruise switching signal, vehicle driving pedal signal, vehicle brake pedal signal, vehicle traveling
GES, judges that vehicle enters adaptive cruise mode of operation, specific execution step is as follows：
H. adaptive cruise switching signal is detected
Adaptive continuation of the journey switching signal is sent by adaptive cruise switch, and adaptive cruise is switched in driver cabin, by
Driver is opened and closed.If adaptive cruise switch is opened, output signal is 1；If adaptive cruise switch is closed, output signal is 0.
Adaptive cruise switching signal is transmitted to entire car controller ECU by vehicle CAN.If adaptive cruise switching signal is 1, hold
Row g steps, if adaptive cruise switching signal is 0, perform b step.
I. vehicle driving pedal signal is detected
Vehicle driving pedal signal is produced by driving pedal displacement transducer, if driver steps on driving pedal, output letter
Number be 1；If driver does not step on driving pedal, output signal is 0.Driving pedal signal is transmitted to vehicle control by vehicle CAN
Device ECU processed.If driving pedal signal is 1, g steps are performed, if driving pedal signal is 0, step c are performed.
J. vehicle brake pedal signal is detected
Vehicle brake pedal signal is produced by brake pedal displacement transducer, if driver's brake pedal, output letter
Number be 1；If the non-brake pedal of driver, output signal is 0.Brake pedal signal is transmitted to vehicle control by vehicle CAN
Device ECU processed.If brake pedal signal is 1, g steps are performed, if brake pedal signal is 0, Step d are performed.
K. vehicle speed of operation signal is detected
Vehicle travel speed signal is sent by brake monitor, and brake monitor obtains wheel speed by wheel speed sensors to be believed
Number, and obtain vehicle speed of operation signal by calculating.Brake pedal signal is transmitted to entire car controller ECU by vehicle CAN.
If speed of operation is more than or equal to 150km/h, g steps are performed, if speed of operation is less than 150km/h, step e are performed.
L. whether detection down time is more than 2s
By brake monitor the duration that speed is 0 is recorded by wheel speed sensors.If the duration is more than 2s, to whole
Vehicle controller ECU sends stop sign, and entire car controller ECU receives stop sign, step g is performed, if not receiving parking
Signal, performs step f
M. adaptive cruise pattern works
Adaptive cruise state flag bit flag_ACC puts 1, and system works into adaptive cruise pattern.
N. driver's pattern works
Adaptive cruise state flag bit flag_ACC is set to 0, and system works into driver's pattern, is taken over by driver and is
System work.
Expect acceleration or deceleration flow chart refering to Fig. 5 to calculate output, it belongs to adaptive cruise decision-making level algorithm,
It is stored in entire car controller ECU.Input the following distance perceived by millimetre-wave radar, front truck GES and by control for brake
This car GES that device is sent.Entire car controller ECU is calculated and is exported expectation acceleration signal to electric machine controller, or defeated
Go out to expect deceleration signal to brake monitor.Specific execution step is as follows：
D. adaptive cruise flag bit is detected
Detect whether adaptive cruise flag bit flag_ACC is 1.If 1, step b is performed, if 0, acceleration is not exported
Spend signal, EP (end of program).
E. calculate and expect acceleration or deceleration
Decision-making level's algorithm is built according to Model Predictive Control Theory, according to front truck following distance, speed, this car GES meter
Calculate the expectation acceleration or deceleration signal in vehicle subsequent work cycle.
F. acceleration or deceleration signal are expected in output
If expecting, acceleration signal is more than 0, exports expectation acceleration signal to electric machine controller, exports 0 signal to braking
Controller.If expecting, acceleration signal is less than 0, exports expectation deceleration signal to brake monitor, exports 0 signal and give motor control
Device processed.
Acceleration is expected in the response of electric machine controller described in step 3, to motor output driving current signal；Control for brake
Deceleration signal is expected in device response, to Pneumatic braking system delivery valve control electric current signal；Wherein electric machine controller and controlling party
Method is using former vehicle motor controller and control method.Pneumatic braking system and brake monitor are modified segment, its control method
Comprise the following steps that：
It is adaptive cruise Pneumatic braking system control method flow chart refering to Fig. 6, algorithm is stored in brake monitor.
Input the expectation deceleration signal exported for entire car controller ECU.It is output as control abs valve electric current and controls TCS valve electric currents.Tool
It is as follows that body performs step：
D. detection wheel whether locking
By the wheel speed signals of wheel speed sensors detect wheel whether locking, if wheel lock up, into anti-lock pattern, if
The non-locking of wheel, performs step b
E. antero posterior axis desired braking pressure is distributed
Antero posterior axis brake pressure distribution is comprised the following steps：
Step one：The expectation deceleration signal sent by entire car controller ECU is converted into expectation total braking force signal；
Step 2：Carload size is obtained by load transducer；
Step 3：Brake-power balance coefficient β is determined according to carload；
Step 4：According to brake-power balance coefficient β, the desired braking pressure of antero posterior axis distribution is calculated.
F. delivery valve control electric current signal
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：
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.
Pneumatic braking system configuration is further illustrated below：
Refering to Fig. 3 be Pneumatic braking system configuration picture, including front axle right wheel brake chamber 1, front axle right wheel abs valve 2,
It is front axle threeway 3, front axle revolver abs valve 4, front axle left wheel brake air chamber 5, front axle revolver wheel speed sensors 6, front axle TCS valves 7, preceding
Axle double-way check valve 8, brake valve 9, rear axle TCS valves 10, rear axle double-way check valve 11, rear axle revolver wheel speed sensors 12, rear axle
Left wheel brake air chamber 13, rear axle revolver abs valve 14, rear axle threeway 15, rear axle right wheel abs valve 16, rear axle right wheel brake chamber 17,
Rear axle right wheel wheel speed sensors 18, quick release valve 19, front axle gas receiver 20, rear axle gas receiver 21, four-loop protection valve 22, hand-operated valve
23rd, wet gas receiver 24, unloading valve 25, air pump 26, front axle right wheel wheel speed sensors 27, front axle pressure sensor 28, rear axle pressure
Sensor 29.
The air pump 26 is used to extract outside air, and boil down to high pressure gas storage is stored in wet gas receiver 24.It is described to unload
Lotus valve 25 is used for the pressure for adjusting compressed air in wet gas receiver 24, is allowed to be maintained in defined pressure limit, while making gas
The off-load of pump 26 is dallied, and reduces power loss.The four-loop protection valve 22 ensures that other loops are remained to when a certain partial failure
Normal work.The hand-operated valve 23 is used to apply or release parking braking.The rear axle gas receiver 21 is used to store rear axle high pressure
Brake gas.The front axle gas receiver 20 is used to store front axle high-pressure brake gas.When the quick release valve 19 is used for parking braking
Release brake chamber ante-chamber gas.When p mouthfuls of quick release valve has gases at high pressure, a1 is closed with a2 mouthful, when p mouthfuls of quick release valve is without high pressure gas
Body, a is communicated with air.The brake valve 9 connects brake pedal, for adjusting antero posterior axis brake chamber pressure.The TCS valves 7
It is normally closed solenoid valve with TCS valves 10, controls flowing into and out for gas.The double-way check valve 8 and double-way check valve 11 have two
Entrance p1, p2 one outlet a, the gas all the way that inlet pressure can be made higher enters brake chamber.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 abs valve 2, abs valve 4, abs valve 16, abs valve 14
Direct control type barostat, including diaphragm type intake valve, diaphragm type air bleeding valve and two two-bit triplet solenoid valve blocks into,
Pressure for adjusting brake chamber 1, brake chamber 5, brake chamber 17, brake chamber 13.ABS magnetic valves have two lines beam point
Not Qu Dong air inlet valve coil and exhaust valve coil, its operation principle is：If two lines bunch is not powered on, (abs valve is not powered on shape
State), p and a mouthfuls of conductings, brake chamber supercharging；If a line is powered, a line is not powered on ("on" position of abs valve half), p and air
Communicate, brake chamber decompression, if two signal lines are powered (abs valve all-pass electricity condition), p, a mouthfuls of closings, brake chamber pressurize.
The brake chamber 1, brake chamber 5 are the single-chamber brake chamber of front axle right wheel and front axle revolver, for realizing service brake.Institute
State the two-chamber brake chamber of brake chamber 17, brake chamber 13 for rear axle right wheel and rear axle revolver, for realize service brake and
Parking braking.The wheel speed sensors 27, wheel speed sensors 6, wheel speed sensors 18, wheel speed sensors 12 pass for Hall-type wheel speed
Sensor, for measuring front axle right wheel, front axle revolver, rear axle right wheel, the wheel wheel speed of rear axle revolver.The front axle pressure sensor
28th, rear axle pressure sensor 29 is the active pressure sensor that BOSCH companies produce, to detect axle brake pressure.
Illustrate the annexation of Pneumatic braking system configuration below：
Refering to Fig. 3, the outlet of air pump 26 a is connected with the entrance p pipelines of unloading valve 25.The outlet a of unloading valve 25 and wet gas storage
The entrance p pipelines connection of cylinder 24.The outlet a of wet gas receiver 24 is connected with the entrance p pipelines of four-loop protection valve 22.Four loops are protected
Three outlet a1, a2, a3 of valve 22 are protected respectively at hand-operated valve 23, dry gas receiver 21, the connection of the pipeline of dry gas receiver 20.It is described manual
The outlet of valve 23 a1 is connected with the entrance p pipelines of quick release valve 19.The outlet of hand-operated valve 16 a2 is communicated with air.The quick release valve 19 is exported
P1 mouthfuls of ante-chamber, the p1 mouthfuls of pipelines of ante-chamber of brake chamber 13 of a2, a1 respectively with brake chamber 17 are connected.Quick release valve 19 export a3 with
Air is communicated.The outlet a of the dry gas receiver 20 is connected with the entrance p and the ante-chamber entrance p1 pipelines of brake valve 9 of TCS valves 7 respectively.
The outlet of gas receiver 21 a is connected with the entrance p pipelines of 9 back cavity entrance p2, TCS valve of brake valve 10 respectively.The TCS valves 7 go out
Mouth a is connected with the p1 mouth pipelines of double-way check valve 8.The ante-chamber outlet a1 and double-way check valve 8 of the brake valve 9 entrance p2 are managed
Road is connected.The outlet a of the TCS valves 10 is connected with the entrance p1 pipelines of double-way check valve 11.The double-way check valve 11 enters
Mouth p2 is connected with the back cavity outlet a2 pipelines of brake valve 9.The outlet a of the double-way check valve 8 is managed with the p mouths of pressure sensor 28
Road is connected.The a mouths of pressure sensor 28 are connected with the p mouth pipelines of threeway 3.The a1 mouths of the threeway 3, a2 mouthfuls respectively with abs valve 2
Entrance p, abs valve 4 entrance p pipelines connection.The outlet a of the double-way check valve 11 and the p mouth pipelines of pressure sensor 29
Connection.It is connected with a mouths of pressure sensor 29 with the p mouth pipelines of threeway 15.The a1 mouths of the threeway 15, a2 mouthfuls respectively with ABS
The entrance p, abs valve 14 of valve 16 entrance p pipelines connection.The outlet a2 of the abs valve 2 connects with the entrance p pipelines of brake chamber 1
Connect.The outlet a2 of the abs valve 4 is connected with the entrance p pipelines of brake chamber 5.The outlet a2 and brake chamber of the abs valve 16
17 back cavity entrance p2 pipelines connection.The outlet a2 of the abs valve 14 is connected with the back cavity entrance p2 pipelines of brake chamber 13.Institute
A1 mouths, the a1 mouths of abs valve 4, the a1 mouths of abs valve 14, the a1 mouths of abs valve 16 for stating abs valve 2 are communicated with air.
Illustrate Pneumatic braking system work process below：
TCS valves 7, TCS valves 10 are closed all the time.Driver's brake pedal, drive brake valve 9 ante-chamber and
Back cavity valve is opened, and tread depths are bigger, and valve opening is bigger, and air mass flow is bigger.Pressure-air by dry gas receiver 20 a mouths
Out enter p1 mouthfuls of the ante-chamber of brake valve 9, out enter the p2 mouths of double-way check valve 8 from a1 mouthfuls after the current limliting of brake valve 9.It is double
The p1 mouths of logical check valve 8 are turned on without gases at high pressure, therefore the p2-a mouths of double-way check valve 22.Gases at high pressure are from double-way check valve 8
A mouths come out and enter the p mouths of abs valve 2 and the p mouths of abs valve 4 by the pressure sensor 28 of front axle, threeway 3.Abs valve 2 and ABS
Valve 4 is in unpowered state, and p-a2 mouthfuls of conductings, gases at high pressure enter brake chamber by the a2 mouths of abs valve 2 and the a2 mouths of abs valve 4
1 and brake chamber 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 dry gas receiver 21, after the current limliting of brake valve 9
Out enter the p2 mouths of double-way check valve 11 from a2 mouthfuls.The p1 mouths of double-way check valve 11 are without gases at high pressure, therefore double-way check valve
11 p2-a mouths conducting.Gases at high pressure come out the pressure sensor 29 for passing through rear axle, threeway 15 from a mouths of double-way check valve 11 and entered
Enter the p mouths of abs valve 16 and the p mouths of abs valve 14.Abs valve 16 and abs valve 14 are in unpowered state, p-a2 mouthfuls of conductings, high pressure gas
Body enters the back cavity of brake chamber 17 and the back cavity of brake chamber 13 by the a2 mouths of abs valve 16 and the a2 mouths of abs valve 14, right respectively
Rear axle right wheel and rear axle revolver apply brake force.
Boost mode system work process：
After top level control system applies supercharging request to Pneumatic braking system, brake monitor response instruction, TCS valves 7
It is powered and opens with TCS valves 10.
Pressure-air is come out the p mouths for entering TCS valves 7 by a mouths of dry gas receiver 20, is out entered from a mouthfuls by TCS valves 7
The p1 mouths of double-way check valve 8.The p2 mouths of double-way check valve 8 are turned on without gases at high pressure, therefore the p2-a mouths of double-way check valve 8.It is high
Body of calming the anger comes out from a mouths of double-way check valve 8 enters the p mouths of abs valve 2 and the p mouths of abs valve 4 by the threeway 3 of front axle.Abs valve
2 and abs valve 4 p-a2 mouths conducting, gases at high pressure by abs valve 2 a2 mouths and abs valve 4 a2 mouths entrance brake chamber 1 and brake
Air chamber 5, applies brake force to front axle right wheel and front axle revolver respectively.
Pressure-air is come out the p mouths for entering TCS valves 10 by a mouths of dry gas receiver 21, from a mouthfuls after the current limliting of TCS valves 20
Out enter the p2 mouths of double-way check valve 11.The p2 mouths of double-way check valve 15 are without gases at high pressure, therefore the p2- of double-way check valve 15
A mouthfuls of conductings.Gases at high pressure come out the p mouths and ABS for entering abs valve 16 by the threeway 15 of rear axle from a mouths of double-way check valve 11
The p mouths of valve 14.The p-a2 mouths conducting of abs valve 16 and abs valve 14, gases at high pressure are by the a2 mouths of abs valve 16 and the a2 mouths of abs valve 14
Into the back cavity and the back cavity of brake chamber 13 of brake chamber 17, brake force is applied 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, abs valve 2,
Abs valve 4, abs valve 14, the all-pass electricity condition of abs valve 16.TCS valves 7 and TCS valves 10 are powered off.Brake chamber gas does not connect with pipeline
Connect, realize pressurize.
Pressure reducing mode system work process：
After top level control system applies decompression request to Pneumatic braking system, brake monitor response instruction, abs valve 2,
Abs valve 4, abs valve 14, the "on" position of abs valve 16 half, TCS valves 7 and TCS valves 10 are powered off.Brake chamber is communicated with air, is realized
Decompression.
Claims (2)
1. a kind of pure electric coach self-adaption cruise system, including battery, battery management system, inverter, electric machine controller, electricity
Machine, speed changer, entire car controller, wheel speed sensors and Pneumatic braking system, it is characterised in that：
Also include the millimetre-wave radar for being fixed on vehicle front；
Install axle TCS valves and abs valve on the Pneumatic braking system additional；
The abs valve is being installed on the pipeline of brake chamber position；The front axle TCS valves are parallel to brake control valve front axle and entered
Between mouth and outlet；The rear axle TCS valves are parallel between brake control valve rear axle entrance and outlet.
2. a kind of pure electric coach self-adaption cruise system according to claim 1, it is characterised in that：
The abs valve sets four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180862.6U CN206528471U (en) | 2017-02-27 | 2017-02-27 | A kind of pure electric coach self-adaption cruise system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720180862.6U CN206528471U (en) | 2017-02-27 | 2017-02-27 | A kind of pure electric coach self-adaption cruise system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206528471U true CN206528471U (en) | 2017-09-29 |
Family
ID=59916862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720180862.6U Expired - Fee Related CN206528471U (en) | 2017-02-27 | 2017-02-27 | A kind of pure electric coach self-adaption cruise system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206528471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671980A (en) * | 2017-02-27 | 2017-05-17 | 吉林大学 | Pure electric bus self-adaptive cruise system and control method |
| CN110962848A (en) * | 2019-07-31 | 2020-04-07 | 重庆长安汽车股份有限公司 | Method and system for controlling automatic driving longitudinal motion |
-
2017
- 2017-02-27 CN CN201720180862.6U patent/CN206528471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671980A (en) * | 2017-02-27 | 2017-05-17 | 吉林大学 | Pure electric bus self-adaptive cruise system and control method |
| CN110962848A (en) * | 2019-07-31 | 2020-04-07 | 重庆长安汽车股份有限公司 | Method and system for controlling automatic driving longitudinal motion |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106671980A (en) | Pure electric bus self-adaptive cruise system and control method | |
| CN102745183B (en) | Energy-feedback active control type air braking system | |
| CN106043263A (en) | Intelligent braking control system of pure electric passenger car and control method of intelligent braking control system | |
| CN106004463B (en) | Pure e-bus braking control system and its control method | |
| CN200939875Y (en) | Electronic controlled braking system for medium heavy duty automobile | |
| CN202686347U (en) | Energy feedback active control air braking system | |
| CN205769259U (en) | Intelligence pure electric coach braking control system | |
| CN205768715U (en) | Pure e-bus braking control system | |
| CN106042978A (en) | Self-adaptive cruising system and control method | |
| CN100422015C (en) | Pneumatically braking anti-lock brake system for mixed powered automobile | |
| CN101678831A (en) | Automotive braking control apparatus and method thereof | |
| CN104071139A (en) | Compound regenerative braking system for electric automobile | |
| CN101774372A (en) | Driving anti-skid control system of hybrid electric vehicle and control method thereof | |
| CN107891850A (en) | A kind of integrated electric hydraulic brake system with decoupling function | |
| CN206528471U (en) | A kind of pure electric coach self-adaption cruise system | |
| CN2925986Y (en) | Stabilized electronic controlling system for medium-heavy automobile | |
| CN104228799B (en) | Hydraulic brake controlling device for vehicle | |
| CN109229087A (en) | A kind of braking anti-lock vehicle wheel cylinder hydraulic force control system and method | |
| CN110077382B (en) | Two-wheeled centralized driving electric vehicle braking energy recovery system based on two-way one-way valve and linear exhaust electromagnetic valve | |
| CN201309479Y (en) | Automobile assistant braking system based on ABS system | |
| CN208897049U (en) | It is a kind of can be with the bi-motor regeneration brake system of active brake | |
| CN208164970U (en) | A kind of brake energy recovering system with fail safe | |
| CN208181038U (en) | A kind of brake energy recovering system with fail safe | |
| CN108116386A (en) | vehicle and its electronic control unit and control method | |
| CN207433303U (en) | A kind of decoupling type brake energy recovering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20210227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |