CN205854119U - A kind of pure electric coach Pneumatic braking system - Google Patents
A kind of pure electric coach Pneumatic braking system Download PDFInfo
- Publication number
- CN205854119U CN205854119U CN201620441059.9U CN201620441059U CN205854119U CN 205854119 U CN205854119 U CN 205854119U CN 201620441059 U CN201620441059 U CN 201620441059U CN 205854119 U CN205854119 U CN 205854119U
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- air accumulator
- valve
- main air
- pure electric
- driving motor
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Abstract
The utility model discloses a kind of pure electric coach Pneumatic braking system, including driving motor, air compressor, wet air accumulator, front main air accumulator, rear main air accumulator, dual-chamber brake, pressure transducer 12, control unit, low pressure alarm, discharging valve, relief valve, shuttle valve, quick release valve, taking air valve and air horn.Described pure electric coach Pneumatic braking system can detect the load driving motor in real time, when duty ratio is relatively low, the driving motor of air compressor just starts work, can be prevented effectively from driving motor and operate at full capacity, thus effectively reduce the current capacity of battery, improve the life-span of electrokinetic cell system.
Description
Technical field
This utility model belongs to pure electric coach field, is specifically related to a kind of pure electric coach Pneumatic braking system.
Background technology
The rise of the new-energy automobile industrialization with electric automobile as representative in the world, can trace back to 50 years last century the earliest
In generation, national governments, while vigorously supporting full-sized car group, formulate environmental protection and energy-saving act one after another, take investment, tax revenue
Preferential, government subsidy promotes the policy of consumption, to promote the development of ev industry.Especially in city, vehicle compares concentration
Place, automobile noise and tail gas the most greatly endangers life and the health of people, and the extensively application of pure electric vehicle is significantly
Reduce this harm.
Relative to conventional motor vehicle with electromotor as power, the air compressor of its brakes relies on electromotor to drive
Dynamic, and to pure electric coach, eliminate electromotor, therefore the air compressor of brakes must rely on single motor to drive
Dynamic, therefore how driving of air compressor coordinates between motor and the mair motor driving motor racing to control, so that power current
Cell system reaches optimum, becomes industry problem demanding prompt solution.
The cost of battery and life problems are to limit the wide variety of main cause of electric motor car, and the service life of battery extends
Just it is equivalent to reduce cost.The factor affecting battery life is a lot, and the most excessive discharge current is one of crucial factor.Pure
Electric motor coach, especially pure electric bus, it is when city ride, need to carry out continually to start, accelerate, braking deceleration,
Stop such cyclic process.The driver motor operating current when starting, accelerating is typically high than normal operation
A lot, if in mair motor startup, accelerator, the driving motor work of air compressor or startup, can bring power current
Uprushing of cell system electric current, brings the biggest challenge to undoubtedly electric bus power-supply system.Therefore by the control of brakes
System, feedback system, detect the load of main drive motor in real time, and when duty ratio is relatively low, the driving motor of air compressor just opens
Dynamic, work.The active force of pure electric coach drives motor to provide power for vehicle motion, and stand-by motor is that air compressor carries
For power.If main and auxiliary motor works simultaneously, strengthen the current capacity of battery undoubtedly.
Utility model content
In order to solve the problems referred to above, this utility model aims to provide a kind of pure electric coach Pneumatic braking system, can be real-time
Detecting the pressure in wet air accumulator and drive the load of motor, controller decides whether to start driving motor just according to detection data
Start work so that electrokinetic cell system reaches optimum.
This utility model provides a kind of pure electric coach Pneumatic braking system, including driving motor, air compressor, wet
Air accumulator, front main air accumulator, rear main air accumulator and dual-chamber brake.
The outfan of described driving motor is connected with the input of described air compressor, is used for instructing the compression of described air
Machine starts or stops work.
Described air compressor is connected with described wet air accumulator by check valve, for by described the wettest for compressed air input
Cooling and oil-water separation in air accumulator.
Described wet air accumulator is connected with described front main air accumulator and described rear main air accumulator respectively by dual-chamber brake.
Compressed air after cooling and oil-water separation is divided into two loops, and loop is through described front main air accumulator and described
The ante-chamber of dual-chamber brake leads to front brake room；Another loop leads to through the back cavity of described main air accumulator and described dual-chamber brake
Brake chamber backward.
Further, also include pressure transducer, be located at the top of described wet air accumulator, detect described wet storage in real time
The pressure of gas tank.
Further, also include drive motor control unit, described control unit include motor load sensor, first
Modulate circuit, the second modulate circuit and controller, described controller and outfan are connected to described driving motor, described pressure biography
Sensor is connected to described controller by the first modulate circuit, and described motor load sensor is connected to by the second modulate circuit
Described controller, the data that described controller feeds back according to described motor load sensor and described pressure transducer judge whether
Start described driving motor.
Further, also include low pressure alarm, be respectively arranged on described front main air accumulator with described after on main air accumulator and
It is connected with described controller signals, reports to the police for triggering when the pressure in tank body is positioned at low pressure alarming value.
Further, also include discharging valve and relief valve, be respectively arranged on lower section and the side of described wet air accumulator.
Further, also including shuttle valve and quick release valve, the back cavity of described dual-chamber brake is sequentially by described shuttle valve and institute
State quick release valve and connect described rear brake room.
Further, also include taking air valve, be located between described front main air accumulator and described rear main air accumulator, beat during fault
Take air valve described in opening and can realize the gas flow between front main air accumulator and rear main air accumulator.
The described pure electric coach Pneumatic braking system that this utility model provides can detect the load driving motor in real time,
When duty ratio is relatively low, the driving motor of air compressor just starts work, can be prevented effectively from driving motor and operate at full capacity, thus
Effectively reduce the current capacity of battery, improve the life-span of electrokinetic cell system.
Accompanying drawing explanation
The structured flowchart of a kind of pure electric coach Pneumatic braking system that Fig. 1 provides for this utility model；
Fig. 2 is the control system schematic diagram driving motor in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described in detail.
Referring to Fig. 1, this utility model provides a kind of pure electric coach Pneumatic braking system, including driving motor 18, sky
Air compressor 1, wet air accumulator 6, front main air accumulator 17, rear main air accumulator 14, dual-chamber brake 3, pressure transducer 12, control list
Unit, low pressure alarm 15, discharging valve 5, relief valve 7, shuttle valve 8, quick release valve 13, take air valve 16 and air horn 9.
The outfan of described driving motor 18 is connected with the input of described air compressor 1, is used for instructing described air
Compressor 1 starts or stops work.
Described air compressor 1 is connected with described wet air accumulator 6 by check valve 4, for inputting compressed air to institute
State cooling and oil-water separation in wet air accumulator 6.
Described wet air accumulator 6 by dual-chamber brake 3 respectively with described front main air accumulator 17 and described after main air accumulator 14
Connection.
Compressed air after cooling and oil-water separation is divided into two loops, and a loop is through described front main air accumulator 17 and institute
The ante-chamber stating dual-chamber brake 3 leads to front brake room 2；Another loop is through described main air accumulator 14 and described dual-chamber brake 3
Back cavity lead to rear brake room 10.
Described pressure transducer 12 is located at the top of described wet air accumulator 6, for the pressure of the described wet air accumulator 6 of detection in real time
Power.
Referring to Fig. 2, described control unit includes that motor load sensor the 20, first modulate circuit 19, second nurses one's health electricity
Road 20 and controller 22, described controller 22 is connected to described driving motor 18 with outfan, and described pressure transducer 12 passes through
First modulate circuit 19 is connected to described controller 22, and described motor load sensor 20 is connected to by the second modulate circuit 20
Described controller 22, the data that described controller 22 feeds back according to described motor load sensor 20 and described pressure transducer 12
Judge whether to start described driving motor 18.
Described low pressure alarm 15 be respectively arranged on described front main air accumulator 17 with described after on main air accumulator 14 and with described
Controller 22 signal connects, and reports to the police for triggering when the pressure in tank body is positioned at low pressure alarming value.
Described discharging valve 5 and relief valve 7 are respectively arranged on lower section and the side of described wet air accumulator 6.
The back cavity of described dual-chamber brake 3 sequentially connects described rear brake by described shuttle valve 8 with described quick release valve 13
Room 10.
The described air valve 16 that takes is located between described front main air accumulator 17 and described rear main air accumulator 14, described in fail-open
Take air valve 16 and can realize the gas flow between front main air accumulator 17 and rear main air accumulator 14
Described in described air horn 9, wet air accumulator 6 connects so that described wet air accumulator 6 is in addition to two main air accumulator inflations, also
Can supply to air horn 9 grade, described air horn 9 arranges air horn switch 11.
First compressed air is inputted wet air accumulator 6 through check valve 4 by the air compressor 1 driving motor 18 to drive, compression
Air cools down in wet air accumulator 6, after oil-water separation, be divided into two loops, and a loop is through described front main air accumulator 17 and institute
The ante-chamber stating dual-chamber brake 3 leads to front brake room 2；Another loop is through described main air accumulator 14 and described dual-chamber brake 3
Back cavity lead to rear brake room 10 when one of them loop break down inefficacy time, another loop remains to work on.
During work, detected the air pressure of each air accumulator in brakes in real time by pressure transducer 12, when in wet air accumulator 6
Pressure when reaching 0.7-0.74Mpa, pressure transducer 12 sends signal, and controller 22 makes driving motor 18 quit work, and
And the signal of 22 pressure transducers 12 of controller delivers to digital instrument by CAN and shows the force value of wet air accumulator 6；When
Pressure in wet air accumulator 6 is positioned at low pressure alarming value to 0.7Mpa, in conjunction with the signal of power motor load sensor 20, if negative
Lotus is less than 50%, drives motor 18 to start work；When the pressure in wet air accumulator 6 is less than low pressure alarming value, no matter motor is born
The payload of lotus sensor 20 detection, it is necessary to start and drive motor 18.
The effect of quick release valve 13 is, when loosening the brake, makes exit return line and time of rear brake room 10 shorten,
Ensure that rear wheel brake releases rapidly braking.
To sum up, the described pure electric coach Pneumatic braking system that this utility model provides can detect in real time and drive the negative of motor
Lotus, when duty ratio is relatively low, the driving motor of air compressor just starts work, can be prevented effectively from driving motor work at full capacity
Make, thus effectively reduce the current capacity of battery, improve the life-span of electrokinetic cell system.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not
Being confined to this, any those familiar with the art is in the technical scope that this utility model discloses, according to this practicality
Novel technical scheme and utility model thereof conceive equivalent or change in addition, all should contain at protection model of the present utility model
Within enclosing.
Claims (7)
1. a pure electric coach Pneumatic braking system, it is characterised in that include driving motor (18), air compressor (1), wet
Air accumulator (6), front main air accumulator (17), rear main air accumulator (14) and dual-chamber brake (3), wherein:
The outfan of described driving motor (18) is connected with the input of described air compressor (1), is used for instructing described air
Compressor (1) starts or stops work；
Described air compressor (1) is connected with described wet air accumulator (6) by check valve (4), for compressed air being inputted extremely
Cooling and oil-water separation in described wet air accumulator (6)；
Described wet air accumulator (6) by dual-chamber brake (3) respectively with described front main air accumulator (17) and described afterwards main air accumulator
(14) connection；
Compressed air after cooling and oil-water separation is divided into two loops, and loop is through described front main air accumulator (17) and described
The ante-chamber of dual-chamber brake (3) leads to front brake room (2)；Another loop is braked through described main air accumulator (14) and described two-chamber
The back cavity of valve (3) leads to rear brake room (10).
A kind of pure electric coach Pneumatic braking system the most according to claim 1, it is characterised in that also include pressure sensing
Device (12), is located at the top of described wet air accumulator (6), for the pressure of the described wet air accumulator (6) of detection in real time.
A kind of pure electric coach Pneumatic braking system the most according to claim 2, it is characterised in that also include driving motor
Control unit, described control unit includes motor load sensor (20), the first modulate circuit (19), the second modulate circuit
(20) and controller (22), described controller (22) and outfan are connected to described driving motor (18), described pressure transducer
(12) being connected to described controller (22) by the first modulate circuit (19), described motor load sensor (20) is by the second tune
Reason circuit (20) is connected to described controller (22), and described controller (22) is according to described motor load sensor (20) and described
The data that pressure transducer (12) feeds back judge whether to start described driving motor (18).
A kind of pure electric coach Pneumatic braking system the most according to claim 3, it is characterised in that also include low pressure alarming
Device (15), be respectively arranged on described front main air accumulator (17) with described after main air accumulator (14) upper and with described controller (22) signal
Connect, report to the police for triggering when the pressure in tank body is positioned at low pressure alarming value.
A kind of pure electric coach Pneumatic braking system the most according to claim 1, it is characterised in that also include discharging valve
(5) and relief valve (7), it is respectively arranged on lower section and the side of described wet air accumulator (6).
A kind of pure electric coach Pneumatic braking system the most according to claim 1, it is characterised in that also include shuttle valve (8)
With quick release valve (13), the back cavity of described dual-chamber brake (3) sequentially connects institute by described shuttle valve (8) with described quick release valve (13)
State rear brake room (10).
A kind of pure electric coach Pneumatic braking system the most according to claim 1, it is characterised in that also include taking air valve
(16), it is located between described front main air accumulator (17) and described rear main air accumulator (14), described in fail-open, takes air valve (16)
The gas flow between front main air accumulator (17) and rear main air accumulator (14) can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441059.9U CN205854119U (en) | 2016-05-16 | 2016-05-16 | A kind of pure electric coach Pneumatic braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441059.9U CN205854119U (en) | 2016-05-16 | 2016-05-16 | A kind of pure electric coach Pneumatic braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205854119U true CN205854119U (en) | 2017-01-04 |
Family
ID=57643409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620441059.9U Expired - Fee Related CN205854119U (en) | 2016-05-16 | 2016-05-16 | A kind of pure electric coach Pneumatic braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205854119U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050239A (en) * | 2018-09-21 | 2018-12-21 | 牡丹汽车股份有限公司 | Cowes spy's vehicle fuel tank location improvement structure |
| CN110422144A (en) * | 2019-09-03 | 2019-11-08 | 武汉客车制造股份有限公司 | A kind of emergency rescue device for integral new-energy passenger |
| CN112606646A (en) * | 2020-12-10 | 2021-04-06 | 南昌工程学院 | Auxiliary braking air pressure preparation system for electric vehicle body vibration energy recovery |
-
2016
- 2016-05-16 CN CN201620441059.9U patent/CN205854119U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050239A (en) * | 2018-09-21 | 2018-12-21 | 牡丹汽车股份有限公司 | Cowes spy's vehicle fuel tank location improvement structure |
| CN110422144A (en) * | 2019-09-03 | 2019-11-08 | 武汉客车制造股份有限公司 | A kind of emergency rescue device for integral new-energy passenger |
| CN112606646A (en) * | 2020-12-10 | 2021-04-06 | 南昌工程学院 | Auxiliary braking air pressure preparation system for electric vehicle body vibration energy recovery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20210516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |