CN104842985A - Air pressure brake air-supplying control device and light bus - Google Patents
Air pressure brake air-supplying control device and light bus Download PDFInfo
- Publication number
- CN104842985A CN104842985A CN201510176355.0A CN201510176355A CN104842985A CN 104842985 A CN104842985 A CN 104842985A CN 201510176355 A CN201510176355 A CN 201510176355A CN 104842985 A CN104842985 A CN 104842985A
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- Prior art keywords
- air
- pressure
- dryer
- gas circuit
- water separator
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Classifications
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- 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
-
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an air pressure brake air-supplying control device and a light bus with the same. The air pressure brake air-supplying control device comprises an electric air compressor, a frequency converter, a pressure switch, an oil-water separator, an air dryer and a protecting valve. The electric air compressor, the oil-water separator, the air dryer and the protecting valve are sequentially communicated through an air delivery pipe to form a main air line. The electric air compressor is electrically connected with the frequency converter which is electrically connected with the pressure switch through a low-voltage circuit. The air dryer, the oil-water separator and the pressure switch are connected to form a branched air line. When pressure of the main air line reaches or is higher than discharging pressure of the dryer, the branched air line is communicated with the main air line. When the pressure of the main air line reaches or is lower than the discharging pressure of the dryer, the branched air line is disconnected from the main air line. The branched air line controls the low-voltage circuit through the pressure switch to supply power to the frequency converter or perform power interruption on the frequency converter. The air compressor is controlled to pump air or stop pumping of the air at set pressure in an intermittent mode, when the amount of air used for a brake system is small or no air is used for the brake system, the air compressor stops idling, power is saved, and the cruising distance of an electric automobile is increased.
Description
Technical field
The invention belongs to electric vehicle engineering field, be specifically related to a kind of electric light bus compression air brake air supply controller.
Background technology
One of topmost performance figure of electronlmobil are course continuation mileages, how to extend the large technical barrier that course continuation mileage is current electronlmobil.
Increase course continuation mileage, an important solution improves vehicle utilization rate of electrical, correspondingly its braking control system is proposed to the requirement of economize on electricity, namely do not touch on the brake or temporary term stop when running car, time brake system gas consumption is not very large, stop the work of air compressor, to save power supply.
Electronlmobil compression air brake control system adopts pressure sensor usually.Particularly, at the control mouth of dryer, pressure sensor is housed, pressure sensor is directly connected with Air compressor.When dryer off-load, if control mouth pressure to reach the sensor settings value upper limit, signal is input to Air compressor by pressure sensor, and Air compressor makes self to be in idling conditions by internal mechanical structure control.Otherwise when dryer unloader valve is without off-load, Air compressor normally runs.This kind of mode is in Air compressor idle operation, and frequency converter is supply regular power always, and waste electric energy, reduces the course continuation mileage of vehicle.
Summary of the invention
The object of the present invention is to provide a kind of when brake system gas consumption is not quite maybe without gas, stop the structure of electric air compressor idle running, to save power supply.
For achieving the above object, the invention provides a kind of compression air brake air supply controller, comprise electric air compressor, frequency converter, pressure switch, oil water separator, air dryer and protective valve.Electric air compressor, oil water separator, air dryer and protective valve are formed main gas circuit with gas piping connection successively; Electric air compressor and frequency converter are electrically connected, frequency converter is electrically connected by low voltage circuit and pressure switch, air dryer, oil water separator and pressure switch connect and compose a gas circuit, when main airline pressure reach or higher than dryer pressure unloading time, prop up gas circuit to be communicated with main gas circuit, pressure switch disconnects; When main airline pressure reach or lower than dryer pressure unloading time, gas circuit and main gas circuit disconnect, and pressure switch is connected, and prop up gas circuit by pressure switch control low voltage circuit to frequency converter power-off or power supply.
As the further improvement of an embodiment of the present invention, oil water separator at least comprises admission port, controls mouth and air extractor duct, and the admission port of oil water separator and air extractor duct are connected with main gas circuit, and the control mouth of oil water separator is connected with a gas circuit.
As the further improvement of an embodiment of the present invention, the control mouth of oil water separator reaches at main airline pressure or ventilates higher than during dryer pressure unloading, reaches or close lower than during dryer pressure unloading at main airline pressure.
As the further improvement of an embodiment of the present invention, air dryer at least comprises admission port, air extractor duct and controls mouth, and admission port, the air extractor duct of air dryer are connected with main gas circuit, and the control mouth of air dryer is connected with a gas circuit.
As the further improvement of an embodiment of the present invention, the control mouth of air dryer reaches at main airline pressure or opens higher than during dryer pressure unloading, reaches or close lower than during dryer pressure unloading at main airline pressure.
As the further improvement of an embodiment of the present invention, in a gas circuit, each site air pressure is consistent.
As the further improvement of an embodiment of the present invention, air dryer, oil water separator and pressure switch connect and compose a gas circuit with T-pipe joint.
As the further improvement of an embodiment of the present invention, the pressure of gas circuit reach or higher than the higher limit preset time, pressure switch disconnects, and makes low voltage circuit to frequency converter power-off; The pressure of gas circuit reach or lower than the lower limit preset time, pressure switch is communicated with, and makes low voltage circuit to inverter supply.
For achieving the above object, an embodiment of the present invention provides a kind of electric light bus, comprises above-mentioned compression air brake air supply controller.
Another embodiment of the invention provides a kind of hybrid power light bus, comprises above-mentioned compression air brake air supply controller.
Compared with prior art, compression air brake air supply controller provided by the invention and there is its light bus, the gas circuit be communicated with conditionally with main gas circuit is set, the pressure switch of propping up in gas circuit can control the electric supply installation of air compressor according to main airline pressure situation, thus control air compressor is intermittently inflated and stopping under the pressure of setting, when brake system gas consumption is little maybe without stopping Air compressor idle running during gas, saves power supply, extending electronlmobil course continuation mileage.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of compression air brake air supply controller one embodiment of the present invention;
Fig. 2 is the gas circuit connection diagram of compression air brake air supply controller one embodiment of the present invention;
Fig. 3 is gas circuit and the circuit connection diagram of compression air brake air supply controller one embodiment of the present invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments do not limit the present invention, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection scope of the present invention.
Compression air brake air supply controller of the present invention comprises electric air compressor 1, frequency converter 2, oil water separator 3, air dryer 4, pressure switch 5 and T-pipe joint 6.
Herein, a vital function of oil water separator and air dryer ensures that cold climate goes down except the steam in ambient air, to ensure compression air brake air supply controller normal operation of the present invention.Otherwise, under extremely low temperature, can freeze when aqueous ingredients is large in air, cause airway blockage.
Fig. 1 illustrates compression air brake air supply controller circuit connection diagram of the present invention, and represent high voltage circuit with solid line connection lead in figure, dashed connection line represents low voltage circuit.
With reference to figure 1, electric air compressor 1 comprises AC induction motor and electric machine controller.Controller controls AC induction motor running or stops.Electric air compressor 1 and frequency converter 2 are electrically connected.The effect of frequency converter 2 is the alternating current be converted to by the direct current (DC) that battery supplies needed for machine operation.High and low pressure circuit is powered for frequency converter 2 simultaneously, and wherein, low voltage circuit activates frequency converter 2 makes it in running order.Once low voltage circuit disconnects, frequency converter 2 cannot work, and Air compressor 1 is corresponding dead electricity also, shuts down, no longer air feed.
Frequency converter 2 and pressure relay 7 are electrically connected by low voltage circuit.Pressure relay 7 can convert the pressure signal fed back in gas circuit to electric signal.When pressure relay 7 conducting, low voltage circuit is energized, Air compressor 1 relevant work.
Pressure relay 7 and pressure switch 5 are electrically connected by low voltage circuit.Pressure switch 5 detect the pressure in gas circuit reach or higher than higher limit time, pressure switch 5 disconnects, and the pressure relay 7 be attached thereto is cut off.Otherwise, when detect the pressure in gas circuit reach or lower than lower limit time, pressure switch 5 is communicated with, pressure relay 7 conducting.Described upper pressure limit value and lower limit environmentally need to pre-set.
Fig. 2 illustrates compression air brake air supply controller gas circuit of the present invention, connects with gas piping.With reference to figure 2, Air compressor 1 provides high-pressure air source for Pneumatic braking system, transfers the gas in air to high pressure gas and inputs main gas circuit.Its inlet end 11 communicates with the external world, and outlet side 12 is connected with the admission port of oil water separator 3.
Oil water separator 3 has another name called condenser, for coordinating with air dryer 4, discharges the oil, the water that mix in gas circuit.Oil water separator 3 comprises admission port 31, air extractor duct 33 and controls mouth 32.Air extractor duct 33 is connected with the admission port 41 of air dryer.The high pressure gas of Air compressor 1 enter air dryer 4 after oil water separator 3.
Air dryer 4 is for carrying out drying to the gas of input and filter, and it comprises admission port 41, air extractor duct 45, regeneration purge mouth 43, sewage draining exit 44 and controls mouth 42.
Air extractor duct 45 is connected with car load gas circuit by protective valve 8.Wherein, car load gas circuit comprises some air receivers and brake servo circuit.Protective valve such as can be four-loop protection valve, also can adopt the protective valve of other similar functions.
Regeneration purge mouth 43 is connected with two-way gas circuit with regeneration barrel 9.
Sewage draining exit 44 is for discharging oil, water when dryer 4 off-load.
T-pipe joint 6 is controlled mouth 42, the control mouth 32 of oil water separator and pressure switch 5 respectively and is connected by gas piping with dryer, form a gas circuit.Wherein, pressure switch 5 can directly be arranged on a port of T-pipe joint 6, does not extend with tracheae and connects for necessity.And T-pipe joint 5 is not to arrange valve for necessity, its three ports are through, and each site air pressure is consistent.During normal air feed, dryer controls mouth 42 and cuts out, and the gas circuit that T-pipe joint 6 connects and main gas circuit disconnect.When dryer control mouth 42 is opened under stress, a gas circuit is communicated with main gas circuit and pressure is consistent.
When main airline pressure does not reach the pressure unloading value of dryer 4, air dryer 4 is in for gaseity.Now, high pressure gas are by entering car load gas circuit through air extractor duct 45 after air dryer 4, and portion gas is through regeneration purge mouth 43 to regeneration barrel 9 simultaneously.In this process, main air-channel system pressure durations rises, and the pressure that air dryer controls mouth 42 also synchronously rises but still retentive control mouth 42 valve closing, and a gas circuit and main gas circuit are isolated.When reaching air dryer 4 pressure unloading to pressure rising, the off-load of air dryer 4 pressure regulating valve.
Particularly, the valve that air dryer controls mouth 42 is washed open by pressure, prop up gas circuit and be communicated with main gas circuit, pressure conduction controls mouth 32 to oil water separator, this place's valve body is washed open with being cascaded, and the gas in a gas circuit enters oil water separator 3, makes oil water separator 3 action, cause air dryer 4 pressure regulating valve to open, discharge oil, water from sewage draining exit 44.In the process, the high pressure gas in regeneration barrel 9 backflow into air dryer 4, and the steam in purging dryer 4 filtering installation and foreign matter are to be drained into air.
With reference to figure 3, on the other hand, when a gas circuit is communicated with main gas circuit, pressure switch 5 detects that pressure reaches the setting value upper limit, and pressure switch 5 disconnects, and pressure relay 7 is cut off, thus makes low voltage circuit dead electricity, Air compressor 1 stops air feed.
Along with use for brake system gas, in car load gas circuit air receiver, pressure is reduced to the system pressure value lower limit that pressure switch 5 sets, the air pressure out of reach pressure unloading in air dryer 4, and pressure regulating valve cuts out, and sewage draining exit 44 stops discharging oil, water.Now, air dryer controls mouth 42 pressure reduces and closes valve herein, gas circuit and main gas circuit conducting.In said process, sewage draining exit 44 is synchronous open and close with control mouth 42 valve.
Meanwhile, pressure switch 5 detects that pressure reaches the system pressure value lower limit of setting, and pressure switch 5 closes, and causes pressure relay 7 conducting, thus triggers electric machine controller starter motor, drives Air compressor 1 to work, to brake system storage tank again air feed.So repeatedly ensure that air receiver has air pressure needed for enough brakings.
Compression air brake air supply controller of the present invention, main gas circuit and a gas circuit are set, when system pressure is excessive, main gas circuit is communicated with a gas circuit, when system pressure reduces, main gas circuit disconnects with a gas circuit, in the process, the supply and demand change of the main gas circuit gas of pressure switch energy perception in a gas circuit, correspondingly control circuit folding, air compressor intermittently operated and stops, preventing idle running.This invention can be applicable to electric light bus, is also applicable to hybrid electric vehicle.
Be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present invention; they are also not used to limit the scope of the invention, all do not depart from the skill of the present invention equivalent implementations done of spirit or change all should be included within protection scope of the present invention.
Claims (10)
1. a compression air brake air supply controller; comprise electric air compressor, frequency converter, pressure switch, oil water separator, air dryer and protective valve, described electric air compressor, oil water separator, air dryer and protective valve are formed main gas circuit with gas piping connection successively.Described electric air compressor and frequency converter are electrically connected, it is characterized in that, described frequency converter is electrically connected by low voltage circuit and pressure switch, described air dryer, oil water separator and pressure switch connect and compose a gas circuit, when main airline pressure reaches or higher than dryer pressure unloading, described gas circuit is communicated with described main gas circuit, and pressure switch disconnects; When main airline pressure reach or lower than dryer pressure unloading time, described gas circuit and described main gas circuit disconnect, and pressure switch is connected, and described gas circuit controls low voltage circuit to inverter supply or power-off by pressure switch.
2. compression air brake air supply controller according to claim 1, it is characterized in that, described oil water separator at least comprises admission port, controls mouth and air extractor duct, and the admission port of described oil water separator and air extractor duct are connected with main gas circuit, and the control mouth of described oil water separator is connected with a gas circuit.
3. compression air brake air supply controller according to claim 2, it is characterized in that, the control mouth of described oil water separator reaches at main airline pressure or ventilates higher than during dryer pressure unloading, reaches or close lower than during dryer pressure unloading at main airline pressure.
4. compression air brake air supply controller according to claim 1, it is characterized in that, described air dryer at least comprises admission port, air extractor duct and controls mouth, and admission port, the air extractor duct of described air dryer are connected with main gas circuit, and the control mouth of described air dryer is connected with a gas circuit.
5. compression air brake air supply controller according to claim 4, it is characterized in that, the control mouth of described air dryer reaches at main airline pressure or opens higher than during dryer pressure unloading, reaches or close lower than during dryer pressure unloading at main airline pressure.
6. compression air brake air supply controller according to claim 1, is characterized in that, in described gas circuit, each site air pressure is consistent.
7. compression air brake air supply controller according to claim 6, is characterized in that, described air dryer, oil water separator and pressure switch connect and compose a gas circuit with T-pipe joint.
8. compression air brake air supply controller according to claim 1, is characterized in that, the pressure of described gas circuit reach or higher than the higher limit preset time, described pressure switch disconnects, and makes low voltage circuit to frequency converter power-off; The pressure of described gas circuit reach or lower than the lower limit preset time, described pressure switch is communicated with, and makes low voltage circuit to inverter supply.
9. an electric light bus, is characterized in that, comprises the arbitrary described compression air brake air supply controller of claim 1-8.
10. a hybrid power light bus, is characterized in that, comprises the arbitrary described compression air brake air supply controller of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176355.0A CN104842985B (en) | 2015-04-14 | 2015-04-14 | Air-pressure brake air supply controller and light bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510176355.0A CN104842985B (en) | 2015-04-14 | 2015-04-14 | Air-pressure brake air supply controller and light bus |
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| Publication Number | Publication Date |
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| CN104842985A true CN104842985A (en) | 2015-08-19 |
| CN104842985B CN104842985B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510176355.0A Expired - Fee Related CN104842985B (en) | 2015-04-14 | 2015-04-14 | Air-pressure brake air supply controller and light bus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004843A (en) * | 2016-06-27 | 2016-10-12 | 中国重汽集团济南动力有限公司 | Pneumatic brake system of electric vehicle |
| CN107738640A (en) * | 2017-09-30 | 2018-02-27 | 东风商用车有限公司 | Air braking air supply system and control method thereof |
| CN109050505A (en) * | 2018-07-10 | 2018-12-21 | 中车大连机车车辆有限公司 | Locomotive air source system |
| CN111114342A (en) * | 2019-11-29 | 2020-05-08 | 武汉格罗夫氢能汽车有限公司 | Idle speed control method for hydrogen energy logistics vehicle |
| CN111661024A (en) * | 2020-06-24 | 2020-09-15 | 三一汽车起重机械有限公司 | Auxiliary gas path drying device and braking system |
| CN112061098A (en) * | 2020-09-02 | 2020-12-11 | 浙江吉利新能源商用车集团有限公司 | Braking system for new energy vehicle and control method thereof |
| WO2021027299A1 (en) * | 2019-08-14 | 2021-02-18 | 中车株洲电力机车有限公司 | Hydrogen fuel cell and air supply system thereof, and rail transit vehicle |
| CN113530802A (en) * | 2021-08-18 | 2021-10-22 | 潍柴动力股份有限公司 | Vehicle air compressor control method and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106004843A (en) * | 2016-06-27 | 2016-10-12 | 中国重汽集团济南动力有限公司 | Pneumatic brake system of electric vehicle |
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| CN109050505A (en) * | 2018-07-10 | 2018-12-21 | 中车大连机车车辆有限公司 | Locomotive air source system |
| WO2021027299A1 (en) * | 2019-08-14 | 2021-02-18 | 中车株洲电力机车有限公司 | Hydrogen fuel cell and air supply system thereof, and rail transit vehicle |
| CN111114342A (en) * | 2019-11-29 | 2020-05-08 | 武汉格罗夫氢能汽车有限公司 | Idle speed control method for hydrogen energy logistics vehicle |
| CN111661024A (en) * | 2020-06-24 | 2020-09-15 | 三一汽车起重机械有限公司 | Auxiliary gas path drying device and braking system |
| CN111661024B (en) * | 2020-06-24 | 2021-07-13 | 三一汽车起重机械有限公司 | Auxiliary gas path drying device and braking system |
| CN112061098A (en) * | 2020-09-02 | 2020-12-11 | 浙江吉利新能源商用车集团有限公司 | Braking system for new energy vehicle and control method thereof |
| CN112061098B (en) * | 2020-09-02 | 2021-11-16 | 浙江吉利新能源商用车集团有限公司 | Braking system for new energy vehicle and control method thereof |
| CN113530802A (en) * | 2021-08-18 | 2021-10-22 | 潍柴动力股份有限公司 | Vehicle air compressor control method and vehicle |
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| Publication number | Publication date |
|---|---|
| CN104842985B (en) | 2017-12-01 |
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