CN112211717B - Multi-stage supercharging flexible air system with electric supercharging function for engine - Google Patents
Multi-stage supercharging flexible air system with electric supercharging function for engine Download PDFInfo
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- CN112211717B CN112211717B CN202010900470.9A CN202010900470A CN112211717B CN 112211717 B CN112211717 B CN 112211717B CN 202010900470 A CN202010900470 A CN 202010900470A CN 112211717 B CN112211717 B CN 112211717B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/14—Control of the alternation between or the operation of exhaust drive and other drive of a pump, e.g. dependent on speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
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- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention provides a multistage supercharging flexible air system with electric supercharging for an engine, which comprises an electric supercharger, the engine, a turbocharger, an air storage tank and a controller, wherein the electric supercharger is connected with the engine through a pipeline; the air inlet is communicated with the air inlet end of a first air compressor of the electric supercharger through a pipeline, the air inlet is communicated with the air inlet end of a second air compressor of the turbocharger through a pipeline, and the pipeline is provided with a one-way valve; the air outlet end of the first air compressor is communicated with the air inlet end of the second air compressor through a pipeline; the air outlet end of the second air compressor is communicated with an air inlet pipe of the engine through an air inlet intercooler and an air inlet heater by pipelines; an air outlet pipe of the engine is communicated with an air inlet end of a turbine of the turbocharger; the output end of the controller is electrically connected with the motor of the electric supercharger; the motor is used for driving the first air compressor to operate; the turbine of the turbocharger drives the second compressor to operate through the exhaust energy of the air outlet pipe of the engine.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a multistage supercharging flexible air system with electric supercharging for an engine.
Background
Turbocharging, a technique for driving an air compressor using exhaust gas generated by the operation of an engine. The purpose of supercharging is to increase the engine intake air amount without increasing the engine displacement, and increase the engine equivalent compression ratio, thereby increasing the engine power density and torque density.
When the engine works, the discharged high-temperature and high-pressure waste gas impacts turbine blades at a certain angle at a high speed to push the turbine to rotate at a high speed, and the turbine drives the coaxial compressor impeller to rotate at a high speed, so that air is pressurized and enters the cylinder. As the engine speed increases, the exhaust gas discharge speed increases in synchronism with the turbine speed, and the impeller compresses more air into the cylinder. The increased pressure and density of the air allows more fuel to be burned, which increases the mean effective pressure of the engine.
In general, when the turbocharged engine rotates at a low speed, the boost pressure is insufficient due to insufficient exhaust gas capacity, the increase of fuel injection quantity is limited, and the low-speed torque performance is poor, which is unfavorable for the power performance of an automobile.
Turbocharging can not compromise low-speed and high-speed performance at the same time, and reducing the volute of the supercharger can improve the low-speed performance, but in order to ensure that the high speed of the supercharger does not exceed the speed, a part of exhaust of the engine is bypassed by adopting an exhaust gas bypass, so that a part of exhaust energy is lost, and the efficiency is reduced. On the other hand, enlarging the supercharger volute improves high speed performance, but results in deterioration of efficiency and responsiveness at low speeds.
The low-speed response of the engine is slow due to the aerodynamic hysteresis of the turbocharger.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a multistage supercharging flexible air system with electric supercharging for an engine.
The technical scheme adopted by the invention is as follows: the utility model provides an engine is with multistage pressure boost flexible air system who takes electronic pressure boost which characterized in that: comprises an electric supercharger, an engine, a turbocharger, an air storage tank and a controller; the air inlet is communicated with the air inlet end of a first air compressor of the electric supercharger through a pipeline, the air inlet is communicated with the air inlet end of a second air compressor of the turbocharger through a pipeline, and the pipeline is provided with a one-way valve; the air outlet end of the first air compressor is communicated with the air inlet end of the second air compressor through a pipeline; the air outlet end of the air storage tank is communicated with the air inlet end of the first air compressor through a pipeline, and a compressed air nozzle is arranged on the pipeline; the air outlet end of the second air compressor is communicated with an air inlet pipe of the engine through an air inlet intercooler and an air inlet heater through pipelines; an air outlet pipe of the engine is communicated with an air inlet end of a turbine of the turbocharger; the air outlet end of the turbocharger is communicated with external air; the output end of the controller is electrically connected with the motor of the electric supercharger and used for controlling the working state of the electric supercharger; the motor is used for driving the first air compressor to operate; the turbine of the turbocharger drives the second compressor to operate through the exhaust energy of the air outlet pipe of the engine; two ends of the air inlet intercooler are connected with an intercooler bypass valve in parallel; an air inlet pipe of the engine is provided with an air inlet temperature sensor and a pressure sensor; an air outlet temperature sensor is arranged at an air outlet end of the turbocharger; the pressure sensor, the inlet air temperature sensor and the outlet air temperature sensor are electrically connected with the input end of the controller; the output end of the controller is electrically connected with the compressed air nozzle, the intercooling bypass valve and the air inlet heater, and the controller drives the change of the working states of the compressed air nozzle, the intercooling bypass valve and the air inlet heater based on the vehicle state information.
In the technical scheme, the two gas storage tanks are communicated through a pipeline, and four-loop protection valves are arranged on the pipeline.
In the technical scheme, the one-way valve is in a normally closed position by default; when the electric supercharger does not work, the pressure of the inlet of the one-way valve is larger than the pressure of the outlet, and air is introduced into the engine through the one-way valve and the second air compressor; when the electric supercharger works, air is respectively led into the engine through the one-way valve and the first air compressor and then the second air compressor; when the pressure difference between the outlet and the inlet of the one-way valve is greater than the cut-off pressure, the one-way valve is fully closed, and air is directly introduced into the second air compressor through the first air compressor.
In the technical scheme, the compressed air nozzle is in a normally closed position by default; the controller drives the compressed air nozzle to open or close according to the vehicle state.
According to the technical scheme, the pressure sensor detects the air inlet pressure of the engine in real time and feeds pressure information back to the controller, and the controller judges the current air inlet quantity demand information of the engine according to the pressure information.
In the technical scheme, if the engine is judged to be operated under the working condition that the air inflow demand is rapidly increased such as rapid acceleration and the like, and auxiliary air inflow is needed, the controller controls the motor of the electric supercharger to operate at the required rotating speed according to preset control parameters through the rotating speed of the engine, the opening degree of an accelerator pedal and the pressure information after air inflow pressurization and intercooling, and drives the first air compressor to compress air; and the compressed air nozzle is controlled to be opened and closed periodically, and the air storage system supplies air according to the required air quantity.
In the technical scheme, if the controller judges that the engine operates under the working condition of low rotating speed and high torque with high air inflow requirement and the air inflow needs to be increased, the controller controls the motor of the electric supercharger to operate and drives the first air compressor to supercharge the intake air. When the motor of the electric supercharger operates, if the pressure sensor detects that the air inlet pressure of the engine is lower than the lowest threshold value, the controller controls the compressed air nozzle to be opened to drive the air storage tank to supply air.
In the technical scheme, the intercooling bypass valve is in a normally closed position by default; the air inlet temperature sensor detects the air inlet temperature in real time and feeds the air inlet temperature back to the controller, and the exhaust temperature sensor detects the exhaust temperature in real time and feeds the exhaust temperature back to the controller; the controller judges the current air inlet temperature demand information of the engine according to the air inlet temperature and the exhaust temperature, and if the air inlet temperature of the engine needs to be increased, the controller adjusts the opening of the intercooling bypass valve in a closed loop mode according to the demanded air inlet temperature.
In the technical scheme, the air inlet heater is in a power-off state by default; if the opening degree of the intercooling bypass valve reaches the full-opening position, and the intake temperature sensor detects that the intake temperature is still lower than the lower limit value of the required temperature, the controller drives the intake heater to be electrified to heat the intake air; and when the air inlet temperature sensor detects that the air inlet temperature is higher than the upper limit value of the required temperature, controlling the air inlet heater to be powered off.
The invention adopts the cooperation of electric pressurization, air supply of a whole vehicle air storage system, exhaust gas turbocharging, an intercooling bypass valve and an air inlet heater to realize the flexible control of the air inlet quantity and the air inlet temperature of the engine.
The flexible control of the air input of the engine provides most of the supercharging pressure by the electric supercharging and air storage system when the engine rotates at a low speed and has low torque. Along with the increase of the rotating speed and the torque, the turbocharger can enable the engine to obtain higher power, meanwhile, the supercharging pressure of the electric supercharger is gradually reduced, and the air storage system stops air supply. At the time of high rotating speed and high torque, the turbocharger provides all the supercharging pressure, and at the moment, the electric supercharger is completely separated from the air inlet supercharging system under the action of the bypass valve of the air inlet pipe, so that the air inlet resistance is reduced.
The flexible control of the air inlet temperature of the engine adjusts the mixing proportion of high-temperature inlet air after pressurization and low-temperature inlet air after cooling of the air inlet intercooler through the opening degree of the intercooling bypass valve, and controls the air inlet temperature of the engine, so that the exhaust temperature of the engine is adjusted, the conversion efficiency of the exhaust aftertreatment device is improved, and the pollutant emission is reduced. In addition, through the pulse control of the air inlet heater, the flexible adjustment of heating power is realized, and the air inlet temperature of the engine is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a flow chart of a control method of the present invention;
FIG. 3 is a flow chart b of the control method of the present invention.
The system comprises an engine 1, a check valve 2, a first air compressor 3, a motor 4, an air storage tank 5, a compressed air nozzle 6, a pressure sensor 7, an air inlet intercooler 8, a first air compressor 9, an intercooler bypass valve 10, a controller 11, an air inlet heater 12, an air inlet temperature sensor 13, an air outlet temperature sensor 14 and a turbine 15.
Detailed Description
The invention will be further described in detail with reference to the drawings and specific embodiments, which are not intended to limit the invention, for the clear understanding of the invention.
As shown in FIG. 1, the invention provides a multi-stage supercharging flexible air system with electric supercharging for an engine, which is characterized in that: comprises an electric supercharger, an engine 1, a turbocharger, an air storage tank 5 and a controller 11; the air inlet is communicated with the air inlet end of a first air compressor 3 of the electric supercharger through a pipeline, the air inlet is communicated with the air inlet end of a second air compressor 9 of the turbocharger through a pipeline, and the pipeline is provided with a one-way valve 2; the air outlet end of the first air compressor 3 is communicated with the air inlet end of the second air compressor 9 through a pipeline; the air outlet end of the air storage tank 5 is communicated with the air inlet end of the first air compressor 3 through a pipeline, and a compressed air nozzle 6 is arranged on the pipeline; the air outlet end of the second air compressor 9 is communicated with an air inlet pipe of the engine 1 through an air inlet intercooler 8 and an air inlet heater 12 by pipelines; an air outlet pipe of the engine 1 is communicated with an air inlet end of a turbine 15 of the turbocharger; the air outlet end of the turbocharger is communicated with external air; the output end of the controller 11 is electrically connected with the motor 4 of the electric supercharger and used for controlling the working state of the electric supercharger; the motor 4 is used for driving the first compressor 3 to operate; the turbine 15 of the turbocharger drives the second compressor 9 to operate through the exhaust energy of the air outlet pipe of the engine 1; two ends of the air intake intercooler 8 are connected with an intercooler bypass valve 10 in parallel; an intake pipe of the engine 1 is provided with an intake air temperature sensor 13 and a pressure sensor 7; an outlet temperature sensor 14 is arranged at the outlet end of the turbocharger; wherein the pressure sensor 7, the inlet air temperature sensor 13 and the outlet air temperature sensor 14 are electrically connected with the input end of the controller 11; the output end of the controller 11 is electrically connected with the compressed air nozzle 6, the intercooling bypass valve 10 and the intake air heater 12, and the controller drives the change of the working states of the three parts based on the vehicle state information.
Among the above-mentioned technical scheme, gas holder 5 includes two, and two gas holders are linked together through the pipeline, and are provided with four return circuit protection valves on this pipeline. The controller controls the opening and closing of the compressed air nozzle 6, so that the compressed air in the air storage tank 5 is controlled to enter the first air compressor 3 of the electric supercharger. The controller drives the first compressor 3 to rotate by driving the working state of the motor 4, and the intake air is pressurized. The turbocharger drives the turbine to rotate by the exhaust energy of the engine 1, so as to drive the second compressor 9 to supercharge the intake air. The intake intercooler 8 cools the intake air passing through the compressor 9. The intercooling bypass valve 10 regulates the mixing ratio of the high-temperature intake air passing through the compressor 9 and the low-temperature intake air passing through the intake intercooler 8. The intake air heater 12 heats intake air entering the engine 1 to raise the intake air temperature.
When the electric supercharger does not work, the inlet pressure of the check valve 2 is larger than the outlet pressure, and the intake air flowing through the second compressor 9 is directly introduced through the check valve 2. When the electric supercharger works, because the first compressor 3 supercharges the inlet air, the outlet pressure of the one-way valve 2 is gradually increased, and the inlet air passing through the second compressor 9 comes from the one-way valve 2 and the first compressor 3. When the pressure difference between the outlet and the inlet of the one-way valve 2 is greater than the cut-off pressure, the one-way valve 2 is fully closed, and the whole amount of the air inflow passing through the first air compressor 3 enters the second air compressor 9 of the electric supercharger.
As shown in fig. 2, based on the above system configuration, the present invention provides an intake air amount control method, comprising the steps of:
1. the compressed air nozzle 6 is in a normally closed position by default and the pneumatic check valve 2 is in a normally closed position by default.
2. The air inlet pressure of the engine 1 is detected in real time through the pressure sensor 7, and the current information of the air inlet quantity demand of the engine is judged by the controller 11. If the engine is judged to be operated under the working condition that the air inflow demand is rapidly increased such as rapid acceleration and the like, and auxiliary air inflow is needed, the controller 11 controls the motor 4 of the electric supercharger to operate at the required rotating speed according to preset control parameters through the information of the rotating speed of the engine, the opening degree of an accelerator pedal, the pressure after air inflow pressurization and cooling and the like, and drives the first air compressor 3 to compress air; the compressed air nozzle 6 is controlled to be opened and closed periodically, and the air storage system supplies air according to the required air quantity;
3. if the engine is judged to be operated under the working condition of low rotating speed, large torque and the like with large air inflow requirement and the air inflow needs to be increased, the controller 11 controls the motor 4 to operate and drives the first air compressor 3 to pressurize the inlet air; when the motor 4 operates, if the pressure sensor 7 detects that the air inlet pressure is lower than the minimum threshold value, the compressed air nozzle 6 is controlled to be opened, and the air storage system supplies air according to the required air quantity.
As shown in fig. 3, based on the above system configuration, the present invention provides an intake air temperature control method, including the steps of:
1. the intercooled bypass valve 10 is in a normally closed position by default and the intake air heater 12 is in a de-energized state by default.
2. The intake air temperature is detected in real time by the intake air temperature sensor 13, the exhaust air temperature is detected in real time by the exhaust air temperature sensor 14, and the current engine intake air temperature demand information is judged by the controller 11. If the engine needs to increase the air inlet temperature, the controller 11 adjusts the opening of the intercooling bypass valve 10 in a closed loop according to the required air inlet temperature;
3. if the opening degree of the intercooling bypass valve 10 reaches the full opening position and the intake air temperature sensor 13 detects that the intake air temperature is lower than the lower limit value of the required temperature, controlling the intake air heater 12 to be electrified to heat the intake air; the intake air temperature sensor 13 detects that the intake air temperature is higher than the required temperature upper limit value, and controls the intake air heater 12 to be powered off.
Those not described in detail in this specification are within the skill of the art.
Claims (3)
1. The utility model provides an engine is with multistage pressure boost flexible air system who takes electronic pressure boost which characterized in that: the device comprises an electric supercharger, an engine, a turbocharger, an air storage tank and a controller; the air inlet is communicated with the air inlet end of a first air compressor of the electric supercharger through a pipeline, the air inlet is communicated with the air inlet end of a second air compressor of the turbocharger through a pipeline, and the pipeline is provided with a one-way valve; the air outlet end of the first air compressor is communicated with the air inlet end of the second air compressor through a pipeline; the air outlet end of the air storage tank is communicated with the air inlet end of the first air compressor through a pipeline, and a compressed air nozzle is arranged on the pipeline; the air outlet end of the second air compressor is communicated with an air inlet pipe of the engine through an air inlet intercooler and an air inlet heater through pipelines; an air outlet pipe of the engine is communicated with an air inlet end of a turbine of the turbocharger; the air outlet end of the turbocharger is communicated with external air; the output end of the controller is electrically connected with the motor of the electric supercharger and used for controlling the working state of the electric supercharger; the motor is used for driving the first air compressor to operate; a turbine of the turbocharger drives the second compressor to operate through the exhaust energy of an air outlet pipe of the engine; two ends of the air intake intercooler are connected with an intercooler bypass valve in parallel; an air inlet pipe of the engine is provided with an air inlet temperature sensor and a pressure sensor; an air outlet temperature sensor is arranged at an air outlet end of the turbocharger; the pressure sensor, the air inlet temperature sensor and the air outlet temperature sensor are electrically connected with the input end of the controller; the output end of the controller is electrically connected with the compressed air nozzle, the intercooling bypass valve and the air inlet heater, and the controller drives the change of the working states of the compressed air nozzle, the intercooling bypass valve and the air inlet heater based on the vehicle state information;
the one-way valve is in a normally closed position by default; when the electric supercharger does not work, the pressure of the inlet of the one-way valve is larger than the pressure of the outlet, and air is introduced into the engine through the one-way valve and the second air compressor; when the electric supercharger works, air is respectively led into the engine through the one-way valve and the first air compressor and then the second air compressor; when the pressure difference between the outlet and the inlet of the one-way valve is greater than the cut-off pressure, the one-way valve is fully closed, and air is directly introduced into the second air compressor through the first air compressor;
the intercooling bypass valve is in a normally closed position by default; the air inlet temperature sensor detects the air inlet temperature in real time and feeds the air inlet temperature back to the controller, and the air outlet temperature sensor detects the air outlet temperature in real time and feeds the air outlet temperature back to the controller; the controller judges the current air inlet temperature demand information of the engine according to the air inlet temperature and the exhaust temperature, and if the air inlet temperature of the engine needs to be increased, the controller adjusts the opening of the intercooling bypass valve in a closed loop according to the demanded air inlet temperature;
the pressure sensor detects the air inlet pressure of the engine in real time and feeds pressure information back to the controller, and the controller judges the current air inlet quantity demand information of the engine according to the pressure information;
if the engine is judged to be operated under the working condition that the air inflow demand is rapidly increased such as rapid acceleration and the like, and auxiliary air inflow is needed, the controller controls the motor of the electric supercharger to operate at the required rotating speed according to preset control parameters through the rotating speed of the engine, the opening degree of an accelerator pedal and the pressure information after air inflow pressurization and cold inflow, and drives the first air compressor to compress air; the compressed air nozzle is controlled to be opened and closed periodically, and the air storage system supplies air according to the required air quantity;
if the controller judges that the engine operates under the working condition of low rotating speed and high torque with high air inflow requirement and the air inflow needs to be increased, the controller controls the motor of the electric supercharger to operate and drives the first air compressor to supercharge the intake air;
when the motor of the electric supercharger operates, if the pressure sensor detects that the air inlet pressure of the engine is lower than the lowest threshold value, the controller controls the compressed air nozzle to be opened to drive the air storage tank to supply air;
the inlet air heater is in a power-off state by default; if the opening degree of the intercooling bypass valve reaches the full-opening position, and the intake temperature sensor detects that the intake temperature is still lower than the lower limit value of the required temperature, the controller drives the intake heater to be electrified to heat the intake air; and when the air inlet temperature sensor detects that the air inlet temperature is higher than the upper limit value of the required temperature, controlling the air inlet heater to be powered off.
2. The multi-stage flexible air system with electric supercharging for the engine according to claim 1, characterized in that: the gas holder includes two, and two gas holders are linked together through the pipeline, and are provided with four return circuit protection valves on this pipeline.
3. The multi-stage flexible air system with electric supercharging for the engine according to claim 1, characterized in that the compressed air nozzle is in a normally closed position by default; the controller drives the compressed air nozzle to open or close according to the vehicle state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900470.9A CN112211717B (en) | 2020-08-31 | 2020-08-31 | Multi-stage supercharging flexible air system with electric supercharging function for engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010900470.9A CN112211717B (en) | 2020-08-31 | 2020-08-31 | Multi-stage supercharging flexible air system with electric supercharging function for engine |
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| CN112211717A CN112211717A (en) | 2021-01-12 |
| CN112211717B true CN112211717B (en) | 2022-08-19 |
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| CN113047942A (en) * | 2021-03-19 | 2021-06-29 | 东风商用车有限公司 | Electric supercharging device for engine |
| CN113047943A (en) * | 2021-03-19 | 2021-06-29 | 东风商用车有限公司 | Controllable electric supercharging device for engine |
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| CN114294094B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Dynamic air compensation system with bypass heat exchange function for engine |
| CN114294102B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Dynamic air compensation and exhaust temperature management system with bypass heat exchange function for engine |
| CN114295386B (en) * | 2021-11-19 | 2023-10-24 | 东风商用车有限公司 | Dynamic air compensation and thermal management system of diesel engine based on pressure flow sensor |
| CN114294097B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Engine hot end dynamic air compensation and bypass throttle valve rear-mounted temperature-discharging management system |
| CN114294100B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Hot end dynamic air compensation and temperature discharge management system with heating device for engine |
| CN114294099B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Engine air inlet flow and temperature compensation management system |
| CN114294098B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Dynamic air compensation and exhaust temperature management system for diesel engine |
| CN114294092B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Dynamic air compensation and exhaust temperature management system for engine |
| CN114294093B (en) * | 2021-11-19 | 2023-05-12 | 东风商用车有限公司 | Engine air dynamic compensation and exhaust temperature management system with exhaust heat exchange function |
| CN114294101B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Dynamic air compensation and thermal management system for diesel engine |
| CN114294095B (en) * | 2021-11-19 | 2023-05-23 | 东风商用车有限公司 | Cold end dynamic air compensation and bypass throttle valve rear-mounted exhaust temperature management system of engine |
| CN114352402B (en) * | 2022-01-17 | 2024-05-28 | 中船重工(重庆)西南装备研究院有限公司 | Supercharger self-adaptive control system |
| CN115306538B (en) * | 2022-03-31 | 2023-12-01 | 东风汽车集团股份有限公司 | Supercharging system of engine and control method thereof |
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