CN111140313B - Multi-mode driving oil-gas separator control system and control method - Google Patents
Multi-mode driving oil-gas separator control system and control method Download PDFInfo
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- CN111140313B CN111140313B CN201911324315.0A CN201911324315A CN111140313B CN 111140313 B CN111140313 B CN 111140313B CN 201911324315 A CN201911324315 A CN 201911324315A CN 111140313 B CN111140313 B CN 111140313B
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- oil
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- engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
Abstract
The invention discloses a control system and a control method for a multi-mode driving oil-gas separator, belonging to the technical field of engines.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a multi-mode driving oil-gas separator control system and a control method.
Background
At present, the oil-gas separator only can control the rotor to operate by adopting the pressure of a main oil duct, so that the power consumption of the oil pump is increased, and the control mode is single. The oil pump is driven by the diesel engine, and the rotating speed of the rotor of the oil-gas separator is related to the rotating speed, the load and the oil pressure of the diesel engine, so that the oil pump is inconvenient to control independently.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the control system and the control method for the multi-mode driving oil-gas separator can reduce the power consumption of the whole engine and improve the heat efficiency of the engine.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the oil pressure driving mode comprises an oil pump which is arranged on a main oil duct and used for driving a rotor of the oil-gas separator to run, the oil pump is controlled by an engine control unit, and the oil-gas separator driving system further comprises an electric mode which comprises a motor controlled by the engine control unit, and the motor is in transmission connection with the rotor of the oil-gas separator.
Further, a control valve for controlling the on-off of the main oil duct is mounted on the main oil duct between the oil pump and the oil-gas separator, and the control valve is controlled by the engine control unit.
Further, the engine control unit is electrically connected with a first rotating speed sensor for detecting the rotating speed of the oil pump and a flow sensor for detecting the flow of the oil pump.
Further, the engine control unit is electrically connected with a second rotation speed sensor for detecting the rotation speed of the engine driving the oil pump and a torque sensor for detecting the torque of the engine.
Furthermore, an oil pressure sensor is arranged in the main oil gallery, and the oil pressure sensor is electrically connected with the engine control unit and sends data to the engine control unit.
Further, the electric mode further comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump can push the rotor to operate to charge the power supply module when the engine is in a dragging-backward state.
A control method of a multi-mode driving oil-gas separator control system comprises the following steps:
s1, an oil pump is installed on a main oil duct communicated with an oil-gas separator, the oil pump drives a rotor of the oil-gas separator to operate through engine oil in the main oil duct to form an oil pressure driving mode, the rotating speed of the oil pump is collected through a first rotating speed sensor, the flow of the oil pump is collected through a flow sensor, collected data are transmitted to an engine control unit, and the engine control unit obtains the rotating speed and the power of the oil pump under the flow according to the power pulse of the oil pump;
s2, the rotor is in transmission connection with a motor to form an electric mode, the oil pump is driven by an engine, the rotating speed of the engine is collected through a second rotating speed sensor, the torque of the engine is collected through a torque sensor, and the collected data are transmitted to the engine control unit; the engine control unit obtains the motor power under the rotating speed and the torque of the engine according to a motor power pulse;
and S3, the engine control unit compares the oil pump power in the oil pressure driving mode with the motor power in the electric mode, and switches to a mode with lower power.
Further, the start and stop of the oil pressure driving mode in step S3 are realized by controlling a control valve on the main oil gallery, the control valve is installed on the main oil gallery between the oil pump and the oil-gas separator and is controlled by the engine control unit, and when the oil pressure driving mode is switched, the control valve is opened; when switching to the motoring mode, the control valve is closed.
Furthermore, an oil pressure sensor is arranged in the main oil gallery, the oil pressure sensor is electrically connected with the engine control unit and sends data to the engine control unit, and when the pressure in the main oil gallery is higher than a set value upper limit or lower than a set value lower limit, the engine control unit controls the oil pressure driving mode to be switched to the electric control mode
Further, the electric mode further comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump can push the rotor to operate when the engine is in a dragging-backward state and generate power through the starter to charge the power supply module.
After the technical scheme is adopted, the invention has the beneficial effects that:
the multi-mode driving oil-gas separator control system comprises an oil pressure driving mode for driving the oil-gas separator, wherein the oil pressure driving mode comprises an oil pump which is arranged on a main oil duct and used for driving a rotor of the oil-gas separator to run, the oil pump is controlled by an engine control unit, the multi-mode driving oil-gas separator control system also comprises an electric mode, the electric mode comprises a motor controlled by the engine control unit, the motor is in transmission connection with the rotor of the oil-gas separator, and the engine control unit can select a control mode with lower power to drive the rotor, so that the power consumption of the whole machine is reduced, and the.
According to the control method of the multi-mode driving oil-gas separator control system, the power of the two working modes is obtained through the engine oil pump power pulse and the motor power pulse, the engine control unit controls the switching to the working mode with less power consumption to drive the oil-gas separator rotor, the total power consumption is low, and the heat efficiency of the engine is improved.
In conclusion, the multi-mode driving oil-gas separator control system and the control method solve the problem that the oil-gas separator rotor driving mode in the prior art is single, and the multi-mode driving oil-gas separator control system and the control method can select the oil pressure driving mode or the electric mode with lower power by the control of the engine control unit, so that the power consumption of the whole machine is reduced, and the heat efficiency of the engine is improved.
Drawings
FIG. 1 is a schematic diagram of a multi-mode drive gas-oil separator control system of the present invention;
fig. 2 is a control flowchart of a control method of the multi-mode driving oil separator control system of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
All directions referred to in the present specification are based on the drawings, and represent relative positional relationships only, and do not represent absolute positional relationships.
The first embodiment is as follows:
as shown in fig. 1 and 2, an oil pressure driving mode for driving the oil-gas separator is included, and the oil pressure driving mode includes an oil pump arranged on the main oil gallery for driving a rotor of the oil-gas separator to operate, and the oil pump is controlled by an engine control unit. The oil pump is a variable displacement oil pump, and the engine oil flows into the main oil duct from the oil pan and enters the oil-gas separator through the driving of the oil pump. The electric mode comprises a motor controlled by the engine control unit, and the motor is in transmission connection with a rotor of the oil-gas separator. The engine control unit ECU compares the power of the oil pressure driving mode and the electric mode under the condition that the rotor has the same rotating speed, and switches the control mode of the rotor to the lower power one. In fig. 1, the broken line is an electric signal control circuit, and the thick line in the solid line is a main oil gallery circuit.
As shown in fig. 1, a control valve for controlling the on-off of the main oil gallery is installed on the main oil gallery between the oil pump and the oil-gas separator, and the control valve is controlled by an engine control unit ECU, and the control valve is opened only when the oil pressure driving mode operates, that is, used for controlling the start and stop of the oil pressure driving mode. When the rotor is driven by an oil pressure driving mode, the control valve is opened, and engine oil can flow into the oil-gas separator; when the rotor is driven by the motoring mode, the control valve is closed and the oil cannot flow into the oil-gas separator.
As shown in fig. 2, the engine control unit ECU is electrically connected with a first speed sensor for detecting the speed of the oil pump and a flow sensor for detecting the flow rate of the oil pump, and the power of the engine control unit ECU can be calibrated according to the speed and the flow rate of the oil pump to form an oil pump power pulse. The ECU of the engine control unit is electrically connected with a second rotating speed sensor for detecting the rotating speed of the engine of the driving oil pump and a torque sensor for detecting the torque of the engine, the rotating speed of the rotor of the oil-gas separator is related to the pressure of the main oil duct and the rotating speed of the oil pump, the two are related to the characteristics of the engine, and the motor is required to reach a certain power if the rotating speed of the rotor of the oil-gas separator is not changed, so that the power of the motor can be calibrated through the rotating speed and the torque of the engine to form a motor power pulse. When the engine oil pump power is less than or equal to the motor power, the rotor is driven by an oil pressure driving mode; when the oil pump power is greater than the motor power, the rotor is driven by the electric mode.
As shown in fig. 1, an oil pressure sensor is provided in the main oil gallery, and the oil pressure sensor is electrically connected to the engine control unit ECU and transmits data to the engine control unit ECU. When the pressure in the main oil gallery is higher than the upper limit of a set value or lower than the lower limit of the set value, namely the pressure in the main oil gallery is abnormal, the oil-gas separation efficiency is influenced, and therefore the ECU controls the mode to be switched from the oil pressure driving mode to the electric control mode.
The electric mode also comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump can push the rotor to operate to charge the power supply module when the engine is in a towing state. The electric mode is independent of the rotating speed, the load and the oil pressure of the engine, and is flexible to control.
Example two:
as shown in fig. 1 and 2 together, a control method of a multi-mode driving oil separator control system includes the steps of:
s1, an oil pump is installed on a main oil duct communicated with the oil-gas separator, the oil pump drives a rotor of the oil-gas separator to operate through oil in the main oil duct to form an oil pressure driving mode, the rotating speed of the oil pump is collected through a first rotating speed sensor, the flow of the oil pump is collected through a flow sensor, collected data are transmitted to an engine control unit ECU, and the engine control unit ECU obtains the power of the oil pump at the rotating speed and at the flow according to the power pulse of the oil pump.
S2, the rotor is in transmission connection with the motor to form an electric mode, the oil pump is driven by the engine, the rotating speed of the engine is collected through the second rotating speed sensor, the torque of the engine is collected through the torque sensor, and the collected data are transmitted to an engine control unit ECU; and the engine control unit ECU obtains the motor power under the rotating speed and the torque of the engine according to the motor power pulse.
S3, the engine control unit ECU compares the power of the oil pump in the oil pressure drive mode with the power of the motor in the electric drive mode, and switches to a mode with a smaller power. That is, when the power of the oil pump is less than or equal to the power of the motor, the rotor is driven by the oil pressure driving mode; when the oil pump power is greater than the motor power, the rotor is driven by the electric mode.
As shown in fig. 1, the start and stop of the oil pressure driving mode in step S3 are realized by controlling a control valve on the main oil gallery, the control valve is installed on the main oil gallery between the oil pump and the oil-gas separator and controlled by the engine control unit ECU, and when the oil pressure driving mode is switched, the control valve is opened; when switching to the motoring mode, the control valve is closed.
As shown in fig. 1, an oil pressure sensor is disposed in the main oil gallery, the oil pressure sensor is electrically connected to the engine control unit ECU and transmits data to the engine control unit ECU, and the engine control unit ECU controls switching from the oil pressure driving mode to the electric control mode when the pressure in the main oil gallery is higher than a set upper limit or lower than a set lower limit.
The electric mode also comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump can push the rotor to operate when the engine is in a dragging-backward state and generate power through the starter to charge the power supply module.
The multi-mode driving oil-gas separator control system and the control method provided by the invention are provided with two control modes, the engine control unit compares the power of the oil pressure driving mode and the power of the electric mode under the condition that the rotor has the same rotating speed, and switches the control mode of the rotor to one with smaller power, so that the power consumption of the whole machine is reduced, and the heat efficiency of the engine is effectively improved.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the described embodiments are only some, and not all, of the present invention, which is presented by way of example only, and the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of the invention, and these changes and modifications all fall within the scope of the invention.
Claims (8)
1. A multi-mode driving oil-gas separator control system comprises an oil pressure driving mode for driving an oil-gas separator, wherein the oil pressure driving mode comprises an oil pump arranged on a main oil duct and used for driving a rotor of the oil-gas separator to run, the oil pump is controlled by an engine control unit, the multi-mode driving oil-gas separator control system is characterized by further comprising an electric mode, the electric mode comprises a motor controlled by the engine control unit, the motor is in transmission connection with the rotor of the oil-gas separator, and the engine control unit is switched to an oil pressure driving mode or an electric mode with smaller power according to the power of the oil pump and the power of the motor under the condition that the rotor of the oil-gas separator rotates at the same speed;
the engine control unit is electrically connected with a first rotating speed sensor for detecting the rotating speed of the oil pump and a flow sensor for detecting the flow of the oil pump, and the engine control unit is electrically connected with a second rotating speed sensor for detecting the rotating speed of an engine for driving the oil pump and a torque sensor for detecting the torque of the engine.
2. The multi-mode driving oil-gas separator control system according to claim 1, wherein a control valve for controlling on-off of the main oil gallery is installed on the main oil gallery between the oil pump and the oil-gas separator, and the control valve is controlled by the engine control unit.
3. A multi-mode driving oil and gas separator control system as set forth in claim 1, wherein an oil pressure sensor is provided in the main oil gallery, the oil pressure sensor being electrically connected with the engine control unit and transmitting data to the engine control unit.
4. A multi-mode drive oil-gas separator control system as claimed in claim 1, wherein the motoring mode further comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump pushes the rotor to operate to charge the power supply module in the engine dragging-down state.
5. A control method of a multi-mode driving oil-gas separator control system is characterized by comprising the following steps:
s1, an oil pump is installed on a main oil duct communicated with an oil-gas separator, the oil pump drives a rotor of the oil-gas separator to operate through engine oil in the main oil duct to form an oil pressure driving mode, the rotating speed of the oil pump is collected through a first rotating speed sensor, the flow of the oil pump is collected through a flow sensor, collected data are transmitted to an engine control unit, and the engine control unit obtains the rotating speed and the power of the oil pump under the flow according to the power pulse of the oil pump;
s2, the rotor is in transmission connection with a motor to form an electric mode, the oil pump is driven by an engine, the rotating speed of the engine is collected through a second rotating speed sensor, the torque of the engine is collected through a torque sensor, and the collected data are transmitted to the engine control unit; the engine control unit obtains the motor power under the rotating speed and the torque of the engine according to a motor power pulse;
and S3, the engine control unit compares the oil pump power in the oil pressure driving mode with the motor power in the electric mode, and switches to a mode with lower power.
6. The control method of a multimode driving oil-gas separator control system according to claim 5, wherein the start and stop of the oil pressure driving mode in step S3 is realized by controlling a control valve on the main oil gallery, the control valve being installed on the main oil gallery between the oil pump and the oil-gas separator and controlled by the engine control unit, the control valve being opened when switching to the oil pressure driving mode; when switching to the motoring mode, the control valve is closed.
7. A control method of a multimode driving oil and gas separator control system as claimed in claim 5, wherein an oil pressure sensor is provided in the main oil gallery, the oil pressure sensor is electrically connected to the engine control unit and transmits data to the engine control unit, and the engine control unit controls switching from the oil pressure driving mode to the motoring mode when the pressure in the main oil gallery is higher than a set upper limit or lower than a set lower limit.
8. The control method of the multi-mode driving oil-gas separator control system according to claim 5, wherein the motoring mode further comprises a power supply module, the power supply module is connected with the motor through a starter, and the oil pump pushes the rotor to operate in the engine dragging state and generates power through the starter to charge the power supply module.
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| CN201911324315.0A CN111140313B (en) | 2019-12-20 | 2019-12-20 | Multi-mode driving oil-gas separator control system and control method |
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| CN201911324315.0A CN111140313B (en) | 2019-12-20 | 2019-12-20 | Multi-mode driving oil-gas separator control system and control method |
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| CN111140313B true CN111140313B (en) | 2021-04-16 |
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Citations (5)
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|---|---|---|---|---|
| JP2012107574A (en) * | 2010-11-18 | 2012-06-07 | Ud Trucks Corp | Method for driving oil mist separator |
| CN103874832A (en) * | 2011-10-20 | 2014-06-18 | 阿尔法拉瓦尔股份有限公司 | A crankcase gas separator |
| WO2017189516A1 (en) * | 2016-04-28 | 2017-11-02 | Cummins Filtration Ip, Inc. | Inside-out rotating coalescer with gas exit through hollow shaft |
| WO2018236921A1 (en) * | 2017-06-20 | 2018-12-27 | Cummins Filtration Ip, Inc. | Axial flow centrifugal separator |
| CN109562392A (en) * | 2016-08-25 | 2019-04-02 | 阿尔夫德珂斯股份公司 | The control of whizzer |
-
2019
- 2019-12-20 CN CN201911324315.0A patent/CN111140313B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012107574A (en) * | 2010-11-18 | 2012-06-07 | Ud Trucks Corp | Method for driving oil mist separator |
| CN103874832A (en) * | 2011-10-20 | 2014-06-18 | 阿尔法拉瓦尔股份有限公司 | A crankcase gas separator |
| WO2017189516A1 (en) * | 2016-04-28 | 2017-11-02 | Cummins Filtration Ip, Inc. | Inside-out rotating coalescer with gas exit through hollow shaft |
| CN109072741A (en) * | 2016-04-28 | 2018-12-21 | 康明斯滤清系统知识产权公司 | Pass the gas through the rotation coalescer from inside to outside of hollow shaft discharge |
| CN109562392A (en) * | 2016-08-25 | 2019-04-02 | 阿尔夫德珂斯股份公司 | The control of whizzer |
| WO2018236921A1 (en) * | 2017-06-20 | 2018-12-27 | Cummins Filtration Ip, Inc. | Axial flow centrifugal separator |
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