CN111120078A - Exhaust gas turbocharging control system and control method thereof - Google Patents
Exhaust gas turbocharging control system and control method thereof Download PDFInfo
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- CN111120078A CN111120078A CN201911409483.XA CN201911409483A CN111120078A CN 111120078 A CN111120078 A CN 111120078A CN 201911409483 A CN201911409483 A CN 201911409483A CN 111120078 A CN111120078 A CN 111120078A
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- turbine
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- temperature
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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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- 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
Abstract
The invention discloses a waste gas turbocharging control system and a control method thereof, belonging to the technical field of waste gas turbocharging, and comprising the following steps: the control method of the exhaust gas turbocharging control system comprises the following specific control steps: s1: for intake manifold, turbo internal conditions and engine speed monitoring, S2: judging whether to start the turbine according to the monitoring data result, S3: starting a turbine, and enabling the turbocharging system to be started in a proper environment by taking a pressure value and a temperature value in an air inlet manifold, a pressure value and a temperature value in the turbine and the rotating speed of an engine as a basis for judging whether the pressure value and the temperature value reach the starting of the turbocharging system, so that the service life is ensured, and the working efficiency is improved; the misjudgment condition is reduced, and the driving safety is guaranteed to a certain extent.
Description
Technical Field
The invention relates to the technical field of exhaust turbocharging, in particular to an exhaust turbocharging control system and a control method thereof.
Background
The maximum power that the engine can deliver is limited by the amount of fuel that can be burned in the cylinder, which in turn is limited by the amount of air that can be drawn in the cylinder per cycle. If the air is compressed to increase its density before entering the cylinder, the same cylinder working volume can accommodate more fresh charge and therefore more fuel can be supplied, resulting in greater power output.
Exhaust gas turbocharging is a method for driving an exhaust gas turbocharger by using the energy of exhaust gas of an internal combustion engine to realize the supercharging of the internal combustion engine. An exhaust gas turbocharger (turbocharger for short) is composed of two main parts, namely a turbine and a compressor, as well as a shaft, a bearing, a lubricating system, a cooling system, a sealing element, a heat insulation device and the like. The high-temperature and high-speed gas exhausted from the cylinder of internal combustion engine is fed via exhaust pipe to turbine of turbocharger to drive the turbine to rotate, and the turbine drives the coaxial compressor wheel to rotate. The compressor compresses the sucked air, and the air with improved pressure flows through an air inlet pipe of the internal combustion engine and is supplied to the cylinder, thereby achieving the purpose of supercharging.
When the existing turbocharging system is used, single data is usually adopted as the basis for starting the turbocharging system, so that the data accuracy is poor, the turbocharging system is easily started under the improper condition, the damage is caused to the turbocharging system, and the service life is shortened.
Disclosure of Invention
The invention aims to provide an exhaust gas turbocharging control system and a control method thereof, which aim to solve the problems that when the existing turbocharging system provided in the background art is used, single data is usually adopted as a basis for starting the turbocharging system, so that the data accuracy is poor, the turbocharging system is easily started under an improper condition, the damage is caused to the turbocharging system, and the service life is shortened.
In order to achieve the purpose, the invention provides the following technical scheme: an exhaust turbocharging control system, comprising:
the air intake manifold sensor assembly comprises an air intake manifold pressure sensor and an air intake manifold temperature sensor, the air intake manifold pressure sensor and the air intake manifold temperature sensor are used for detecting the pressure and the temperature in the air intake manifold, and the pressure value and the temperature value in the air intake manifold are used as one of the basis for judging whether the turbocharging system is started;
the turbine internal sensor assembly comprises a turbine internal pressure sensor and a turbine internal temperature sensor, the turbine internal pressure sensor and the turbine internal temperature sensor detect the pressure and the temperature in a turbine of the turbocharging system, and the pressure value and the temperature value in the turbine are used as one of the bases for judging whether the turbocharging system is started;
the engine speed sensor detects the speed of the engine, and the speed of the engine is used as one of the bases for judging whether the turbocharging system is started;
the system comprises a microprocessor, an air inlet manifold sensor assembly, a turbine sensor assembly and an engine rotating speed sensor, wherein the output ends of the air inlet manifold sensor assembly, the turbine sensor assembly and the engine rotating speed sensor are connected with the input end of the microprocessor through data lines;
the turbine starting and stopping circuit is connected with the output end of the microprocessor and controls the starting and stopping of the turbocharging system.
Preferably, the intake manifold pressure sensor and the intake manifold temperature sensor, the turbine internal pressure sensor and the turbine internal temperature sensor are all high temperature resistant sensors.
Preferably, the microprocessor is a programmable PLC processor.
A control method of an exhaust turbocharging control system comprises the following specific control steps:
s1: monitoring of intake manifold, turbo conditions and engine speed: setting a monitoring value range for a microprocessor, and starting the turbine when a pressure value and a temperature value in an air inlet manifold, a pressure value and a temperature value in the turbine and the rotating speed of an engine all meet the monitoring value range;
monitoring the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine through an air inlet manifold pressure sensor, an air inlet manifold temperature sensor, a turbine internal pressure sensor, a turbine internal temperature sensor and an engine rotating speed sensor;
s2: judging whether to start the turbine according to the monitoring data result: the microprocessor receives the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine, and compares the measured value with a preset monitoring value range:
a at least one of the measured values is not within the preset monitoring range, if it does not satisfy the condition for starting the turbine, then, it jumps back to step S1;
b, the measured values are all in the preset corresponding monitoring range, and the next step is carried out according to the condition that the measured values meet the requirement of starting the turbine;
s3: starting a turbine: the microprocessor starts the turbine through the turbine start-stop circuit, and then jumps back to step S1.
Compared with the prior art, the invention has the beneficial effects that:
1) the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine are used as the basis for judging whether the pressure value and the temperature value reach the starting of the turbocharging system, so that the turbocharging system can be started in a proper environment, the service life is ensured, and the working efficiency is improved;
2) the misjudgment condition is reduced, and the driving safety is guaranteed to a certain extent.
Drawings
FIG. 1 is a logical block diagram of the system of the present invention;
FIG. 2 is a system logic block diagram of the intake manifold sensor assembly of the present invention;
FIG. 3 is a system logic block diagram of the sensor assembly within the turbine of the present invention;
FIG. 4 is a flow chart of a control method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-4, the present invention provides a technical solution: an exhaust turbocharging control system, comprising:
the air intake manifold sensor assembly comprises an air intake manifold pressure sensor and an air intake manifold temperature sensor, the air intake manifold pressure sensor and the air intake manifold temperature sensor are used for detecting the pressure and the temperature in the air intake manifold, and the pressure value and the temperature value in the air intake manifold are used as one of the basis for judging whether the turbocharging system is started;
the turbine internal sensor assembly comprises a turbine internal pressure sensor and a turbine internal temperature sensor, the turbine internal pressure sensor and the turbine internal temperature sensor detect the pressure and the temperature in a turbine of the turbocharging system, and the pressure value and the temperature value in the turbine are used as one of the bases for judging whether the turbocharging system is started;
the engine speed sensor detects the speed of the engine, and the speed of the engine is used as one of the bases for judging whether the turbocharging system is started;
the system comprises a microprocessor, an air inlet manifold sensor assembly, a turbine sensor assembly and an engine rotating speed sensor, wherein the output ends of the air inlet manifold sensor assembly, the turbine sensor assembly and the engine rotating speed sensor are connected with the input end of the microprocessor through data lines;
the turbine starting and stopping circuit is connected with the output end of the microprocessor and controls the starting and stopping of the turbocharging system.
Further, the intake manifold pressure sensor, the intake manifold temperature sensor, the turbine internal pressure sensor and the turbine internal temperature sensor are all high-temperature-resistant sensors.
Further, the microprocessor is a programmable PLC processor.
A control method of an exhaust turbocharging control system comprises the following specific control steps:
s1: monitoring of intake manifold, turbo conditions and engine speed: setting a monitoring value range for a microprocessor, and starting the turbine when a pressure value and a temperature value in an air inlet manifold, a pressure value and a temperature value in the turbine and the rotating speed of an engine all meet the monitoring value range;
monitoring the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine through an air inlet manifold pressure sensor, an air inlet manifold temperature sensor, a turbine internal pressure sensor, a turbine internal temperature sensor and an engine rotating speed sensor;
s2: judging whether to start the turbine according to the monitoring data result: the microprocessor receives the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine, and compares the measured value with a preset monitoring value range:
a at least one of the measured values is not within the preset monitoring range, if it does not satisfy the condition for starting the turbine, then, it jumps back to step S1;
b, the measured values are all in the preset corresponding monitoring range, and the next step is carried out according to the condition that the measured values meet the requirement of starting the turbine;
s3: starting a turbine: the microprocessor starts the turbine through the turbine start-stop circuit, and then jumps back to step S1.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An exhaust turbocharging control system, comprising:
the air intake manifold sensor assembly comprises an air intake manifold pressure sensor and an air intake manifold temperature sensor, the air intake manifold pressure sensor and the air intake manifold temperature sensor are used for detecting the pressure and the temperature in the air intake manifold, and the pressure value and the temperature value in the air intake manifold are used as one of the basis for judging whether the turbocharging system is started;
the turbine internal sensor assembly comprises a turbine internal pressure sensor and a turbine internal temperature sensor, the turbine internal pressure sensor and the turbine internal temperature sensor detect the pressure and the temperature in a turbine of the turbocharging system, and the pressure value and the temperature value in the turbine are used as one of the bases for judging whether the turbocharging system is started;
the engine speed sensor detects the speed of the engine, and the speed of the engine is used as one of the bases for judging whether the turbocharging system is started;
the system comprises a microprocessor, an air inlet manifold sensor assembly, a turbine sensor assembly and an engine rotating speed sensor, wherein the output ends of the air inlet manifold sensor assembly, the turbine sensor assembly and the engine rotating speed sensor are connected with the input end of the microprocessor through data lines;
the turbine starting and stopping circuit is connected with the output end of the microprocessor and controls the starting and stopping of the turbocharging system.
2. The exhaust turbocharging control system according to claim 1, characterized in that: and the intake manifold pressure sensor, the intake manifold temperature sensor, the pressure sensor in the turbine and the temperature sensor in the turbine are all high-temperature-resistant sensors.
3. The exhaust turbocharging control system according to claim 1, characterized in that: the microprocessor is a programmable PLC processor.
4. A control method of the exhaust turbo-charging control system according to any one of claims 1 to 3, characterized in that: the control method of the exhaust gas turbocharging control system comprises the following specific control steps:
s1: monitoring of intake manifold, turbo conditions and engine speed: setting a monitoring value range for a microprocessor, and starting the turbine when a pressure value and a temperature value in an air inlet manifold, a pressure value and a temperature value in the turbine and the rotating speed of an engine all meet the monitoring value range;
monitoring the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine through an air inlet manifold pressure sensor, an air inlet manifold temperature sensor, a turbine internal pressure sensor, a turbine internal temperature sensor and an engine rotating speed sensor;
s2: judging whether to start the turbine according to the monitoring data result: the microprocessor receives the pressure value and the temperature value in the air inlet manifold, the pressure value and the temperature value in the turbine and the rotating speed of the engine, and compares the measured value with a preset monitoring value range:
a at least one of the measured values is not within the preset monitoring range, if it does not satisfy the condition for starting the turbine, then, it jumps back to step S1;
b, the measured values are all in the preset corresponding monitoring range, and the next step is carried out according to the condition that the measured values meet the requirement of starting the turbine;
s3: starting a turbine: the microprocessor starts the turbine through the turbine start-stop circuit, and then jumps back to step S1.
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| CN201911409483.XA CN111120078B (en) | 2019-12-31 | 2019-12-31 | Exhaust gas turbocharging control system and control method thereof |
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| CN201911409483.XA CN111120078B (en) | 2019-12-31 | 2019-12-31 | Exhaust gas turbocharging control system and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362221A (en) * | 2020-10-09 | 2021-02-12 | 东风商用车有限公司 | Method for determining pressure of exhaust manifold of turbocharging |
| CN114992152A (en) * | 2022-06-15 | 2022-09-02 | 势加透博（北京）科技有限公司 | Test method of miniature turbine fan |
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| CN1187862A (en) * | 1995-06-16 | 1998-07-15 | 贵州航空工业总公司红林机械厂 | Lambda control by skip fire of unthrottled gas fueled engines |
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| CN114992152A (en) * | 2022-06-15 | 2022-09-02 | 势加透博（北京）科技有限公司 | Test method of miniature turbine fan |
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Denomination of invention: Exhaust gas turbocharging control system and control method thereof Effective date of registration: 20210809 Granted publication date: 20210511 Pledgee: Jiangsu Jinmao Financing Guarantee Co.,Ltd. Pledgor: JIANGSU ZHENGCHI MECHANICAL AND ELECTRICAL Co.,Ltd. Registration number: Y2021980007431 |