CN117087453A - CNG power source extended range electric system - Google Patents
CNG power source extended range electric system Download PDFInfo
- Publication number
- CN117087453A CN117087453A CN202311176387.1A CN202311176387A CN117087453A CN 117087453 A CN117087453 A CN 117087453A CN 202311176387 A CN202311176387 A CN 202311176387A CN 117087453 A CN117087453 A CN 117087453A
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- CN
- China
- Prior art keywords
- gas
- pressure
- fuel
- cng
- power source
- 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.)
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Links
- 239000007789 gas Substances 0.000 claims abstract description 61
- 239000002737 fuel gas Substances 0.000 claims abstract description 27
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 239000000295 fuel oil Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000002828 fuel tank Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 230000001743 silencing effect Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a CNG power source range-extending electric system, which relates to the field of CNG power source range-extending electric systems and comprises a gas supply system, a fuel supply system, a range extender, a generator, a battery pack and a driving motor. Under the condition of consistent fuel gas supply, the CNG power source range-increasing electric system has the advantages that the range is far longer than that of the existing pure fuel gas vehicle, an engine and a gearbox are not needed, the counterweight is small, the travel of the vehicle is improved, and the CNG power source range-increasing electric system has better energy conservation performance under the same range; the main component of the fuel gas is methane, which belongs to clean energy, and has less pollutant emission compared with pure fuel vehicles; the stability is good, and compared with fuel oil, the fuel gas has good antiknock performance, so that the silencing effect of the vehicle is better; the economy of using CNG is good, and the price of CNG is far lower than the price of fuel oil.
Description
Technical Field
The invention relates to the field of CNG power source range-extending electric systems, in particular to a CNG power source range-extending electric system.
Background
The range-extended electric vehicle not only has new energy road rights, but also solves the problem of mileage anxiety, can meet the requirement of various application scenes of urban cold chain transportation, and has hundred kilometers comprehensive oil consumption of less than 5 liters under the normal condition, and the oil consumption of some vehicles can be even lower. The extended range new energy electric automobile is a hybrid electric automobile and also has a gas turbine. However, the gas turbine is not used for driving the wheels, but is used for driving the generator, so that the battery can be continuously charged. After charging the battery, the motor may drive the wheels. Electric hybrid vehicles are currently the more reliable option. The continuous voyage mileage of the vehicle is longer than that of a new energy vehicle, and the oil consumption of the vehicle is lower than that of a pure gasoline vehicle.
However, the existing electric hybrid electric vehicle is usually characterized in that fuel is added into an engine, the engine drives wheels to operate through a gearbox, or after the engine drives a generator to generate electricity, a motor is used for driving the wheels to operate, and the whole system comprises the engine, the generator, the gearbox and the motor, so that the counterweight is large, and the travel of the vehicle is reduced.
Therefore, it is necessary to provide a CNG power source extended range electric system to solve the above problems.
Disclosure of Invention
The invention aims to provide a CNG power source range-extending type electric system, which aims to solve the problems that the existing electric hybrid electric vehicle is usually provided with fuel oil added into an engine, the engine drives wheels to operate through a gearbox, or a motor drives wheels to operate after the engine drives a generator to generate electricity, and the whole system comprises the engine, the generator, the gearbox and the motor, so that the counterweight is large, and the travel of the vehicle is reduced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the CNG power source range-extending type electric system comprises a gas supply system, a fuel supply system, a range extender, a generator, a battery pack and a driving motor, wherein the gas supply system and the fuel supply system supply power sources to the range extender;
the gas supply system comprises a steel cylinder, wherein an air filling valve is connected to the steel cylinder, one end of the air filling valve is connected with a high-pressure electromagnetic valve, the output end of the high-pressure electromagnetic valve is connected with a pressure reducing valve, a pressure gauge is arranged between the pressure reducing valve and the high-pressure electromagnetic valve, the pressure gauge is arranged on the pressure reducing valve, one end of the pressure reducing valve is connected with a spraying rail, a temperature sensor is arranged between the spraying rail and the pressure reducing valve, and a gas pressure sensor is connected to the spraying rail;
the pressure value of the gas stored in the steel cylinder is 20MPa, the pressure of the gas is reduced to 0.13-0.18 MPa through a pressure reducing valve to form low-pressure gas, and the ECU controls the injection rail to inject the low-pressure gas into the range extender.
The fuel supply system includes a fuel tank.
Preferably, a temperature sensor is arranged between the spraying rail and the pressure reducing valve, the temperature sensor is arranged in the water tank, when the temperature detected by the temperature sensor exceeds a set threshold value, the fuel gas supply system is started by the ECU, the fuel gas spraying rail is started to supply gas to the range extender, and meanwhile, the ECU cuts off the fuel gas supply system.
Preferably, the gas supply system, the fuel supply system and the battery pack are manually switched by a driver.
Preferably, a liquid level sensor is arranged in the oil tank, and a pressure sensor is arranged in the steel cylinder.
Preferably, the high-pressure solenoid valve, the pressure gauge, the pressure reducing valve and the spray rail are controlled by an ECU, and the ECU is provided with a switch.
Preferably, the gas filling valve is a three-position two-way valve, and the gas filling valve is used for filling gas into the steel cylinder during gas filling.
Preferably, the battery pack is a rechargeable battery pack.
The invention has the technical effects and advantages that:
1. under the condition of consistent fuel gas supply, the CNG power source range-increasing electric system has the advantages that the range is far longer than that of the existing pure fuel gas vehicle, an engine and a gearbox are not needed, the counterweight is small, and the travel of the vehicle is improved;
2. the main component of the fuel gas is methane, the main component of the fuel oil is propane, and the fuel gas belongs to clean energy, and has less pollutant emission compared with pure fuel oil;
3. the stability is good, compared with the fuel oil which is directly used, the fuel gas formed by liquefying the fuel oil has better antiknock performance, so that the silencing effect of the vehicle is better;
4. the economy of using CNG is good, and the price of CNG is far lower than the price of fuel oil;
5. under the condition of fuel gas or fuel oil exhaustion or low-speed working condition, the battery pack directly provides stored electric energy for the driving motor, and the driving motor converts the electric energy into kinetic energy and transmits the kinetic energy to power executing devices such as wheels and the like;
6. the invention relates to a three-energy power vehicle, which generates electric energy to drive the vehicle to run through different modes, abandons the limit of the transmission ratio of the transmission case of the original fuel oil and gas vehicle, has wider speed regulation range and is suitable for various road conditions.
Drawings
Fig. 1 is a schematic diagram of a CNG power source range-extending electric system according to the present invention.
Fig. 2 is a schematic diagram of a hardware module structure of the CNG power source extended range electric system of the present invention.
In the figure: 1. a steel cylinder; 2. adding an air valve; 3. a high pressure solenoid valve; 4. a pressure gauge; 5. a pressure reducing valve; 6. an ECU; 7. a switch; 8. a temperature sensor; 9. spraying a rail; 10. a gas pressure sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to solve the problems that the existing electric hybrid electric vehicle is usually characterized in that fuel is added into an engine, the engine drives wheels to operate through a gearbox, or an electric motor drives wheels to operate after the engine drives a generator to generate electricity, and the whole system comprises the engine, the generator, the gearbox and the electric motor, so that the counterweight is large, and the travel of the vehicle is reduced; the CNG power source range-extending electric system comprises a gas supply system, a range extender, a generator, a battery pack and a driving motor, wherein the gas supply system supplies power source to the range extender; during operation, the gas supply system directly adds gas to the power generator Cheng Qizhong as energy, heat energy generated after combustion of the gas is converted into kinetic energy, the kinetic energy is transmitted to the generator for generating electricity, part of electric energy generated by the generator is provided for the driving motor, the other part of electric energy is stored in the battery pack, the driving motor converts the electric energy into kinetic energy and transmits the kinetic energy to the power executing device such as wheels, and the like.
The main component of the fuel gas is methane, belongs to clean energy, and has less pollutant emission compared with a pure fuel vehicle; compared with the existing pure gas vehicle, the continuous voyage mileage of the pure gas vehicle is far more than that of the existing pure gas vehicle under the condition of consistent gas supply, and is generally 3-5 times of that of the pure gas vehicle; the CNG power source range-extending electric system has the advantage of better energy conservation under the same mileage.
The CNG in the invention is fuel gas, and has good stability, and compared with fuel oil, the fuel gas has good antiknock performance, so that the silencing effect of the vehicle is better; the economy of using CNG is good, and the price of CNG is far lower than the price of fuel oil.
The gas supply system specifically comprises a steel cylinder 1, wherein an air filling valve 2 is connected to the steel cylinder 1, one end of the air filling valve 2 is connected with a high-pressure electromagnetic valve 3, the output end of the high-pressure electromagnetic valve 3 is connected with a pressure reducing valve 5, a pressure gauge 4 is arranged between the pressure reducing valve 5 and the high-pressure electromagnetic valve 3, the pressure gauge 4 is arranged on the pressure reducing valve 5, one end of the pressure reducing valve 5 is connected with a spraying rail 9, and a gas pressure sensor 10 is connected to the spraying rail 9; when the gas-saving range extender is in operation, gas is stored in the steel cylinder 1, the gas can be conveyed into the steel cylinder 1 by using the gas adding valve 2, and the gas in the steel cylinder 1 can be supplied to the range extender for use after passing through the gas adding valve 2, the high-pressure electromagnetic valve 3, the pressure reducing valve 5, the spraying rail 9 and the gas pressure sensor 10 in sequence, wherein the gas pressure sensor 10 is arranged on the range extender.
The high-pressure electromagnetic valve 3, the pressure gauge 4, the pressure reducing valve 5 and the spray rail 9 are controlled by the ECU6, the ECU6 is used for controlling the switch of the high-pressure electromagnetic valve 3, the pressure reducing valve 5 and the spray rail 9, the ECU6 is provided with a switch 7, and the switch 7 is a switch key of the ECU 6.
CNG stored in the steel cylinder 1 is in a gas state, the pressure of the CNG is reduced to 0.13MPa-0.18MPa through the pressure reducing valve 5, the CNG meets the requirements of a range extender, the ECU6 controls the injection rail 9 to inject low-pressure gas into the range extender, the high-pressure electromagnetic valve 3 provides safety guarantee, the gas adding valve 2 adopts a three-position two-way valve, and the gas is input into the steel cylinder 1 through the gas adding valve 2 during gas filling.
The fuel supply system includes a fuel tank, and fuel filling of the fuel tank is a common technology in the prior art, and will not be described herein.
A temperature sensor 8 is arranged between the spray rail 9 and the pressure reducing valve 5, the temperature sensor 8 is arranged in the water tank, when the temperature detected by the temperature sensor 8 exceeds a set threshold value, the ECU6 starts a fuel gas supply system, the fuel gas spray rail 9 is started to supply gas to the range extender, and meanwhile, the ECU6 disconnects the fuel gas supply system. The switching between the fuel gas supply system and the fuel oil supply system is realized.
In addition, the inside of oil tank is provided with level sensor, the inside of steel bottle 1 is provided with pressure sensor, after level sensor detects the inside fuel of oil tank and is less than the threshold value of settlement, fuel supply system closes, simultaneously gas supply system starts, and pressure sensor detects the inside gas pressure of steel bottle 1 and is less than the threshold value of settlement after, gas supply system closes and the group battery starts simultaneously, produces the traveling of electric energy drive car through different forms, has abandoned original fuel, the transmission ratio restriction of gas car gearbox, speed regulation scope is wider, be fit for multiple road conditions.
Meanwhile, the fuel gas supply system, the fuel oil supply system and the battery pack can be manually switched by a driver, so that the control flexibility is improved.
The generator stores the other part of electric energy into the battery pack, and the battery pack directly provides the stored electric energy for the driving motor under the condition of fuel gas exhaustion or low-speed working condition, and the driving motor converts the electric energy into kinetic energy and transmits the kinetic energy to power executing devices such as wheels and the like; the battery pack is a rechargeable battery pack.
Claims (7)
1. The utility model provides a CNG power supply increases journey electric system, includes gas supply system, fuel supply system, journey ware, generator, group battery and driving motor, its characterized in that: the fuel gas supply system and the fuel oil supply system supply power sources to the range extender, the output end of the range extender is connected with the generator, the generator is connected with the driving motor, the driving end of the driving motor is connected with the shaft of the wheel, the output end of the battery pack is connected with the input end of the driving motor, the input end of the battery pack is connected with the output end of the generator, part of electric energy generated by the generator is provided for the driving motor, and the other part of electric energy is stored in the battery pack;
the gas supply system comprises a steel cylinder (1), wherein the steel cylinder (1) is connected with an air filling valve (2), one end of the air filling valve (2) is connected with a high-pressure electromagnetic valve (3), the output end of the high-pressure electromagnetic valve (3) is connected with a pressure reducing valve (5), a pressure gauge (4) is arranged between the pressure reducing valve (5) and the high-pressure electromagnetic valve (3), the pressure gauge (4) is arranged on the pressure reducing valve (5), one end of the pressure reducing valve (5) is connected with a spraying rail (9), and a gas pressure sensor (10) is connected to the spraying rail (9);
the pressure value of the gas stored in the steel cylinder (1) is 20MPa, the pressure of the gas is reduced to 0.13-0.18 Mpa through a pressure reducing valve (5) to form low-pressure gas, and an ECU (6) controls a spraying rail (9) to spray the low-pressure gas into a range extender;
the fuel supply system includes a fuel tank.
2. The CNG power source range-extending electric system of claim 1, wherein: a temperature sensor (8) is arranged between the spraying rail (9) and the pressure reducing valve (5), the temperature sensor (8) is arranged in the water tank, when the temperature detected by the temperature sensor (8) exceeds a set threshold value, the fuel gas supply system is started through the ECU (6), the fuel gas spraying rail (9) is started to supply gas to the range extender, and meanwhile, the ECU (6) cuts off the fuel gas supply system.
3. The CNG power source range-extending electric system of claim 1, wherein: the gas supply system, the fuel supply system and the battery pack are manually switched by a driver.
4. The CNG power source range-extending electric system of claim 1, wherein: the inside of oil tank is provided with liquid level sensor, the inside of steel bottle (1) is provided with pressure sensor.
5. The CNG power source range-extending electric system of claim 1, wherein: the high-pressure electromagnetic valve (3), the pressure gauge (4), the pressure reducing valve (5) and the spray rail (9) are controlled through the ECU (6), and the ECU (6) is provided with a switch (7).
6. The CNG power source range-extending electric system of claim 1, wherein: the gas filling valve (2) is a three-position two-way valve, and gas is input into the steel cylinder (1) by using the gas filling valve (2) when gas is filled.
7. The CNG power source range-extending electric system of claim 1, wherein: the battery pack is a rechargeable battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311176387.1A CN117087453A (en) | 2023-09-13 | 2023-09-13 | CNG power source extended range electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311176387.1A CN117087453A (en) | 2023-09-13 | 2023-09-13 | CNG power source extended range electric system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117087453A true CN117087453A (en) | 2023-11-21 |
Family
ID=88783412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311176387.1A Pending CN117087453A (en) | 2023-09-13 | 2023-09-13 | CNG power source extended range electric system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117087453A (en) |
-
2023
- 2023-09-13 CN CN202311176387.1A patent/CN117087453A/en active Pending
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