CN106004843A - Pneumatic brake system of electric vehicle - Google Patents
Pneumatic brake system of electric vehicle Download PDFInfo
- Publication number
- CN106004843A CN106004843A CN201610476624.XA CN201610476624A CN106004843A CN 106004843 A CN106004843 A CN 106004843A CN 201610476624 A CN201610476624 A CN 201610476624A CN 106004843 A CN106004843 A CN 106004843A
- Authority
- CN
- China
- Prior art keywords
- air drier
- air
- baroswitch
- electric compressor
- pressure
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/268—Compressed-air systems using accumulators or reservoirs
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to a pneumatic brake system of an electric vehicle. The pneumatic brake system comprises an electric air compressor and an air dryer, wherein the air dryer is provided with a control port 4/23. The pneumatic brake system is reasonable in structure design and convenient to use, connection of conventional brake pipelines and gas pipelines of related valves is not required to be changed, economical operation of the electric air compressor is realized, the driving range of the vehicle is extended, and the service life of the electric air compressor is prolonged.
Description
Technical field
The present invention relates to a kind of electric automobile Pneumatic braking system.
Background technology
Along with integral new-energy passenger quickly grows, for realizing the energy-conservation of car load, each total Chengdu makes every effort to economical.Pure electric coach uses electric compressor, and in vehicle operation, after brake-pipe pressure arrives air drier pressure unloading, air compressor machine is shut down；When brake-pipe pressure drops to preset lower limit with use, air compressor machine is restarted, it is achieved the economy of its work.
But, the pressure unloading error of air drier unloader is ± 0.2bar, and electric compressor uses the pressure transducer installed on the outlet pipe of its rear end or pressure switch to control, and its error is ± 0.1bar.Assume that air drier pressure unloading is 8.5bar; under limit state; air drier error does not include-0.1bar for-0.2bar～-0.1bar() time; brake-pipe pressure is 8.3bar～8.4bar; air drier off-load; the signal that air compressor machine collects is always less than 8.5bar, and air compressor machine cannot be shut down；Air drier error is that 0.1bar～0.2bar(does not include 0.1bar) time; brake-pipe pressure is more than 8.6bar～8.7bar; air drier unloader just can be opened; when but brake-pipe pressure is 8.4bar～8.6bar; air compressor machine is shut down; brake-pipe pressure no longer rises, and air drier cannot realize off-load and regeneration function.It practice, only when air drier and air compressor machine error are completely the same, could ensure air compressor machine economical operation and air drier off-load and the realization of regeneration function simultaneously, this is practically impossible to realization.
Currently in order to ensure the safety of brakes, it is common practice to sacrifice the economy of air compressor machine, make air compressor machine continuous firing, disadvantage of this is that: one, air compressor machine continuous firing, energy waste is relatively big, less economical, reduces vehicle continual mileage；Two, air compressor machine continuous firing, its internal continued wear, reduce its service life.
Summary of the invention
The invention provides a kind of electric automobile Pneumatic braking system, its reasonable in design, easy to use, connect without changing the gas circuit of existing brake piping and related valves class, achieve the economical operation of electric compressor, improve vehicle continual mileage, extend the service life of electric compressor, solve problems of the prior art.
The present invention solves above-mentioned technical problem be the technical scheme is that, it includes electric compressor and air drier, air drier is with controlling mouth 4/23, electric compressor is connected with condenser by pipeline, condenser is connected with the interface 1 of air drier by pipeline, the interface 21 of air drier is connected with braking energy storing device by pipeline, the interface 22 of air drier is connected with regeneration gas receiver by pipeline, the control mouth 4/23 of air drier is connected with baroswitch, baroswitch electrically connects with control module, pressure transducer on braking energy storing device electrically connects with instrument desk air gauge, instrument desk air gauge electrically connects with control module, control module electrically connects with electric compressor.
Described baroswitch is normally closed type baroswitch.
Present invention employs band and control the air drier of mouth 4/23, the control mouth 4/23 of air drier is connected with baroswitch, with this baroswitch record air drier off-load and the air pressure change of regeneration time control donsole 4/23, change according to this pressure signal controls electric compressor and shuts down or start, air drier off-load and the realization of regeneration function and electric compressor restart without modification, so ensureing the pressure of brake piping and be dried and on the basis of cleaning, realize the economical operation of electric compressor, improve vehicle continual mileage, extend the service life of electric compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure, 1, electric compressor, 2, air drier, 3, condenser, 4, braking energy storing device, 5, regeneration gas receiver, 6, normally closed type baroswitch, 7, control module, 8, pressure transducer, 9, instrument desk air gauge, 10, mouth 4/23 baroswitch signal is controlled, 11, raw pressure signal, 12, pressure signal after instrument desk air gauge is changed, 13, electric compressor control signal.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combining its accompanying drawing, the present invention will be described in detail.
As shown in FIG., the present invention includes electric compressor 1 and air drier 2, air drier 2 is with controlling mouth 4/23, electric compressor 1 is connected with condenser 3 by pipeline, condenser 3 is connected with the interface 1 of air drier 2 by pipeline, the interface 21 of air drier 2 is connected with braking energy storing device 4 by pipeline, the interface 22 of air drier 2 is connected with regeneration gas receiver 5 by pipeline, the control mouth 4/23 of air drier 2 is connected with normally closed type baroswitch 6, normally closed type baroswitch 6 electrically connects with control module 7, pressure transducer 8 on braking energy storing device 4 electrically connects with instrument desk air gauge 9, instrument desk air gauge 9 electrically connects with control module 7, control module 7 electrically connects with electric compressor 1.Wherein:
Normally closed type baroswitch 6 is connected on the control mouth 4/23 of air drier 2, is used for gathering air drier 2 off-load and regenerated signal, produces and controls mouth 4/23 baroswitch signal 10；
Control the output of mouth 4/23 baroswitch signal 10 to control module 7；
The raw pressure signal 11 of pressure transducer 8 output on braking energy storing device 4 gives instrument desk air gauge 9, is transported to control module 7 after instrument desk air gauge 9 shows and changes；
Control module 7, according to control strategy, compares and controls mouth 4/23 baroswitch signal 10 and the pressure signal 12 after instrument desk air gauge is changed, determine electric compressor control signal 13；
Electric compressor control signal 13 controls electric compressor 1 and starts or stops；
Present invention employs band and control the air drier 2 of mouth 4/23, the control mouth 4/23 of air drier 2 is connected with normally closed type baroswitch 6, when pressure is less than 5.6 ± 0.3bar, and switch Guan Bi.After electric compressor 1 starts, brake-pipe pressure rises, and before air drier 2 arrives pressure unloading, the control mouth 4/23 of air drier 2 does not has air pressure, normally closed type baroswitch 6 to be closure state；After air drier 2 arrives pressure unloading, the control mouth 4/23 of air drier 2 is inflated, and pressure is 8.5 ± 0.2bar, and now normally closed type baroswitch 6 is off-state, and electric compressor 1 works on；After air drier 2 aerofluxus off-load, air drier 2 cavity pressure declines, control mouth 4/23 gas to discharge through air drier 2 air vent, when control mouth 4/23 pressure of air drier 2 drops below 5.6 ± 0.3bar, normally closed type baroswitch 6 closes, now air drier 2 has been carried out regeneration function, recorded after normally closed type baroswitch 6 disconnects and close two signals continuously, and electric compressor 1 quits work.After dropping to different setting pressure along with vehicle brake conduit air pressure, realize the closedown of air drier 2 unloader successively and electric compressor 1 restarts (electric compressor 1 restarts signal and can extract from instrument desk air gauge 9).After electric compressor 1 is restarted, new supply circulation starts.
During use, it is not necessary to the gas circuit changing existing brake piping and related valves class connects.
The using method of the present invention is: before vehicle launch, and normally closed type baroswitch 6 is closure state, and during ignition switch Guan Bi, control module 7 controls electric compressor 1 on and off switch Guan Bi, and electric compressor 1 starts, and brake-pipe pressure rises；After air drier 2 arrives pressure unloading, the control mouth 4/23 of air drier 2 is inflated, and now normally closed type baroswitch 6 is off-state, and electric compressor 1 on and off switch closure state is constant, and electric compressor 1 works on；After air drier 2 aerofluxus off-load, air drier 2 cavity pressure declines, mouth 4/23 gas that controls of air drier 2 is discharged through the air vent of air drier 2, when control mouth 4/23 pressure of air drier 2 drops below 5.6 ± 0.3bar, normally closed type pressure switch 6 closes, and control module 7 controls electric compressor 1 and quits work.
Above-mentioned detailed description of the invention cannot function as limiting the scope of the invention, and to those of ordinary skill in the art, any alternate modification being made embodiment of the present invention or conversion all fall within protection scope of the present invention.
The present invention does not describes part in detail, is the known technology of those skilled in the art of the present technique.
Claims (2)
1. an electric automobile Pneumatic braking system, it is characterized in that: include electric compressor and air drier, air drier is with controlling mouth 4/23, electric compressor is connected with condenser by pipeline, condenser is connected with the interface 1 of air drier by pipeline, the interface 21 of air drier is connected with braking energy storing device by pipeline, the interface 22 of air drier is connected with regeneration gas receiver by pipeline, the control mouth 4/23 of air drier is connected with baroswitch, baroswitch electrically connects with control module, pressure transducer on braking energy storing device electrically connects with instrument desk air gauge, instrument desk air gauge electrically connects with control module, control module electrically connects with electric compressor.
A kind of electric automobile Pneumatic braking system the most according to claim 1, it is characterised in that: described baroswitch is normally closed type baroswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476624.XA CN106004843A (en) | 2016-06-27 | 2016-06-27 | Pneumatic brake system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476624.XA CN106004843A (en) | 2016-06-27 | 2016-06-27 | Pneumatic brake system of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106004843A true CN106004843A (en) | 2016-10-12 |
Family
ID=57083761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610476624.XA Pending CN106004843A (en) | 2016-06-27 | 2016-06-27 | Pneumatic brake system of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106004843A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696937A (en) * | 2016-12-16 | 2017-05-24 | 浙江吉利新能源商用车有限公司 | Air brake system and air compressor start and stop control method based on air brake system |
| CN107310544A (en) * | 2017-05-31 | 2017-11-03 | 瑞立集团瑞安汽车零部件有限公司 | A kind of condenser control device and its control method |
| CN107499159A (en) * | 2017-08-14 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of control system and control method of pure electric compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010095754A1 (en) * | 2009-02-23 | 2010-08-26 | ナブテスコ株式会社 | Compressed air supply system, compressed air supply device for vehicle, and method of controlling air compressor |
| CN103437986A (en) * | 2013-08-30 | 2013-12-11 | 中通客车控股股份有限公司 | Gas path-electric air compressor integrated control system and control method |
| CN204432645U (en) * | 2015-01-19 | 2015-07-01 | 陕西汽车集团有限责任公司 | The Pneumatic controller of electric truck brake system |
| CN104842985A (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Air pressure brake air-supplying control device and light bus |
| CN205706649U (en) * | 2016-06-27 | 2016-11-23 | 中国重汽集团济南动力有限公司 | A kind of electric automobile Pneumatic braking system |
-
2016
- 2016-06-27 CN CN201610476624.XA patent/CN106004843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010095754A1 (en) * | 2009-02-23 | 2010-08-26 | ナブテスコ株式会社 | Compressed air supply system, compressed air supply device for vehicle, and method of controlling air compressor |
| CN103437986A (en) * | 2013-08-30 | 2013-12-11 | 中通客车控股股份有限公司 | Gas path-electric air compressor integrated control system and control method |
| CN204432645U (en) * | 2015-01-19 | 2015-07-01 | 陕西汽车集团有限责任公司 | The Pneumatic controller of electric truck brake system |
| CN104842985A (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Air pressure brake air-supplying control device and light bus |
| CN205706649U (en) * | 2016-06-27 | 2016-11-23 | 中国重汽集团济南动力有限公司 | A kind of electric automobile Pneumatic braking system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696937A (en) * | 2016-12-16 | 2017-05-24 | 浙江吉利新能源商用车有限公司 | Air brake system and air compressor start and stop control method based on air brake system |
| CN107310544A (en) * | 2017-05-31 | 2017-11-03 | 瑞立集团瑞安汽车零部件有限公司 | A kind of condenser control device and its control method |
| CN107499159A (en) * | 2017-08-14 | 2017-12-22 | 中国重汽集团济南动力有限公司 | A kind of control system and control method of pure electric compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10434464B2 (en) | Compressed-air drying device, method for controlling compressed-air drying device, and vehicle | |
| US11180128B2 (en) | System and method for controlling centralized brake of vehicles, a motor train set brake control system | |
| US9833736B2 (en) | Method and device for preparation of compressed air in motor vehicles | |
| CN106004843A (en) | Pneumatic brake system of electric vehicle | |
| JP6403678B2 (en) | Compressed air supply device and method of operating compressed air supply device | |
| CN103687768B (en) | Compressed air treatment facility and for moving the method for compressed air treatment facility | |
| WO2018105711A1 (en) | Air supply system | |
| CN104842985B (en) | Air-pressure brake air supply controller and light bus | |
| CN209683676U (en) | A kind of pure electric vehicle pneumatic control system | |
| CN102883929A (en) | Device for controlling an electro-pneumatic brake device | |
| CN205706649U (en) | A kind of electric automobile Pneumatic braking system | |
| CN202115502U (en) | Air supply device of pneumatic brake system of heavy hauler | |
| CN106255540B (en) | Dual-purpose drying machine for high flow capacity | |
| CN107738640B (en) | Air supply system for pneumatic braking and control method thereof | |
| CN205737506U (en) | A kind of oil truck parking interlocked brake system | |
| CN114954388B (en) | Emergency braking control system and method | |
| US9393969B1 (en) | System for control of compressors and air dryers in tunnels | |
| CN110525406A (en) | Low speed traction locomotive electromagnetic air braking system and its implementation | |
| US20220194342A1 (en) | Compressed air processing system for commercial vehicle | |
| CN209142118U (en) | A kind of pneumatic control system of plug-in hybrid passenger car | |
| CN107685725B (en) | A kind of air supply system on hybrid power chassis | |
| CN207594943U (en) | A kind of automobile air drier | |
| WO2016114787A1 (en) | Improved system for control of compressors and air dryers in tunnels | |
| JP7110177B2 (en) | air supply circuit | |
| CN105667307A (en) | Control system for power takeoff |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |