CN105041408A - Control system for electronically-controlled engine oil pump of engine, and control method thereof - Google Patents
Control system for electronically-controlled engine oil pump of engine, and control method thereof Download PDFInfo
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- CN105041408A CN105041408A CN201510497541.4A CN201510497541A CN105041408A CN 105041408 A CN105041408 A CN 105041408A CN 201510497541 A CN201510497541 A CN 201510497541A CN 105041408 A CN105041408 A CN 105041408A
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- 239000010705 motor oil Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims description 81
- 239000010721 machine oil Substances 0.000 claims description 38
- 238000012545 processing Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 11
- 230000000052 comparative effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the field of automobile engine control, and specifically relates to a control system for an electronically-controlled engine oil pump of an engine, and a control method thereof. According to the control system, an automatic control module is connected with a data output end of a detection module; a target engine oil pressure is determined according to an engine oil temperature and a rotational speed of the engine, and compared with an actual engine oil pressure measured by an engine oil pressure sensor; and a drive signal is output according to a comparison result to control a rotational speed of a drive motor, so that the actual engine oil pressure is kept at the target engine oil pressure. The control system disclosed by the invention is capable of directly judging the engine oil pressures needed under various working conditions during normal working of the engine, directly controlling the engine oil pump to drive the drive motor to work, realizing closed-loop control by virtue of the engine oil pressure sensor, judging whether the engine oil pressures under the various working conditions meet the needs under the corresponding working conditions or not through measurements in real time, and carrying out real-time adjustments to meet the needs of the various running working conditions of the engine.
Description
Technical field
The invention belongs to automotive engine control field, be specifically related to a kind of control system and controlling method thereof of engine electric-controlled oil pump.
Background technique
Day by day harsh due to every regulation, the requirement for engine consumption and discharge is more and more higher, uses variously to fall friction techniques, has more and more become the technological means that motor reduces oil consumption.The oil pump of current much of its adopts mechanical structure, i.e. gear type, rotator type or blade type.As: patent: CN102052120A oil pump is a kind of oil pump of rotator type, directly or indirectly drives internal rotor to rotate, carry out pump pressure machine oil by inner and outer rotors by bent axle; Patent: CN103196024A displacement-variable oil pump and have the engine lubrication system of this oil pump, drives blade rotary to produce negative pressure by bent axle thus makes machine oil be drawn into blade sheave in oil pump, pump pressure machine oil from oil sump.At present, the driving mechanism of oil pump substantially all have employed bent axle and directly or indirectly drives, this driving mode, the engine oil pressure that oil pump pumps only with motor rotating speed and engine oil temperature about: the rotating speed of motor raises, engine oil pressure increases, the oil temperature of motor raises, and engine oil pressure reduces.The engine oil pressure of each rotating speed cannot accurately control, and can not provide required engine oil pressure by the demand of motor to engine oil pressure.Simultaneously, when first time every day ato unit, because motor is placed for a long time, machine oil is all back to oil sump substantially because of Action of Gravity Field, the oil film that each friction pair does not directly almost have machine oil to be formed, instantaneous when engine start, machine oil cannot reach each friction pair immediately, cause friction pair to form dry friction within the regular hour, make friction pair produce early stage wearing and tearing.
Summary of the invention
The object of this invention is to provide one can accurate controller oil pressure, the control system of the engine electric-controlled oil pump of instantaneous dry friction when simultaneously can reduce engine start and controlling method thereof.
For achieving the above object, the invention provides following technological scheme:
A control system for engine electric-controlled oil pump, comprising: drive motor, for driving engine motor oil pump work; Testing module, comprises the oil temperature sensor for detecting engine oil temperature, for detecting the engine rotation speed sensor of engine speed, and for detecting the oil pressure sensor of engine oil pressure; Automatic control module, be connected with the data output end of testing module, according to oil temperature and the engine speed of described motor, determine target machine oil pressure, and the actual engine oil pressure that this target machine oil pressure and oil pressure sensor record is compared, control drive motor rotating speed according to comparative result output drive signal, make actual engine oil pressure maintain described target machine oil pressure;
Described automatic control module comprises: data processing module, is connected with the data output end of engine rotation speed sensor with oil temperature sensor, according to oil temperature and the engine speed of motor, calculates target machine oil pressure; PID closed loop control module, be connected with oil pressure sensor with data processing module, receive the actual engine oil pressure that oil pressure sensor detects, this actual engine oil pressure and described target machine oil pressure are compared, and export control signal control drive motor rotating speed according to comparative result;
Described automatic control module is integrated in ECU.
Present invention also offers a kind of controlling method of above-mentioned control system:
Before engine start, when ECU is in POST state, automatic control module controls described drive motor and starts, and oil pump is just started working before an engine is started;
After engine start, drive motor drives oil pump to remain in operation, testing module detects oil temperature and engine speed, and this information is sent to data processing module, data processing module is according to oil temperature and engine speed determination target machine oil pressure, oil temperature is higher, engine speed is faster, then target machine oil pressure force value is higher;
Target machine oil pressure force value is sent to PID closed loop control module by data processing module, PID closed loop control module receives the actual engine oil pressure that oil pressure sensor sends simultaneously, when actual engine oil pressure is lower than target machine oil pressure, drive motor faster rotational speed, when actual engine oil pressure is higher than target machine oil pressure, drive motor rotating speed reduces;
After ECU judges motor shutdown, automatic control module controls drive motor to be continued to run 2-10s, and then automatic control module controls drive motor closedown;
When ECU judges engine abnormity shutdown, automatic control module controls drive motor to be continued to run 2-10s, and then automatic control module controls drive motor closedown.
Technique effect of the present invention is: engine oil pressure required under each operating mode when the present invention directly can judge engine work, and direct control unit oil pump drives drive motor to carry out work, oil pressure sensor is utilized to realize closed loop control, whether the engine oil pressure under each operating mode of real-time measurement meets the demand under this operating mode, and carry out real-time adjustment, to meet the demand of each Operation Conditions of motor; When motor carry out self-inspection do not operate time, ECU robot brain oil pump drive drive motor carry out work, be full of lubricant oil between each oil duct, friction pair before making engine start, the moment of such engine start can reduce the inordinate wear of friction pair.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present invention;
Fig. 2 is control flow chart of the present invention.
Embodiment
As shown in Figure 1, a kind of control system of engine electric-controlled oil pump, comprising:
Drive motor 30, for driving engine motor oil pump work;
Testing module 20, comprises the oil temperature sensor 21 for detecting engine oil temperature, for detecting the engine rotation speed sensor 22 of engine speed, and for detecting the oil pressure sensor 23 of engine oil pressure; The sensor that automobile is provided for oneself is utilized in the present invention, the oil temperature sensor for ECU collection engine operating state that such as automobile inherently has, oil pressure sensor and engine rotation speed sensor, whole system and ECU become one, without the need to arranging respective sensor specially.
Automatic control module 10, be connected with the data output end of testing module 20, according to oil temperature and the engine speed of described motor, determine target machine oil pressure, and the actual engine oil pressure that this target machine oil pressure and oil pressure sensor 23 record is compared, control drive motor 30 rotating speed according to comparative result output drive signal, make actual engine oil pressure maintain described target machine oil pressure.The suitableeest engine oil pressure under the different operating modes that above-mentioned target machine oil pressure mainly records according to the engine test stage is determined, this test data is stored in for calling in data processing module in advance, and data processing module determines target machine oil pressure according to these data exactly.
Further, described automatic control module 10 comprises:
Data processing module 11, is connected with the data output end of oil temperature sensor 21 with engine rotation speed sensor 22, according to oil temperature and the engine speed of motor, calculates target machine oil pressure;
PID closed loop control module 12, be connected with oil pressure sensor 23 with data processing module 11, receive the actual engine oil pressure that oil pressure sensor 23 detects, this actual engine oil pressure and described target machine oil pressure are compared, and exports control signal control drive motor 30 rotating speed according to comparative result.
Further, described automatic control module 10 is integrated in ECU, and automatic control module 10 can sharing E CU resource, and such as, automatic control module 10 can obtain the information such as vehicle start and stop state, engine operating state by ECU.
Present invention also offers a kind of controlling method of above-mentioned control system:
Before engine start, when ECU is in POST state, automatic control module 10 controls described drive motor 30 and starts, and oil pump is just started working before an engine is started.Each friction pair directly oil pump being depressed into lubricating system oil duct is direct, make before engine running, just to set up oil film between each friction pair, now motor operates again, owing to establishing oil film between friction pair, reduce the probability of the instantaneous friction pair dry friction of engine start, reduce the premature wear of motor.
After engine start, drive motor 30 drives oil pump to remain in operation, as shown in Figure 2, testing module 20 detects oil temperature and engine speed, and this information is sent to data processing module 11, data processing module 11 is according to oil temperature and engine speed determination target machine oil pressure, and oil temperature is higher, engine speed is faster, then target machine oil pressure force value is higher;
Target machine oil pressure force value is sent to PID closed loop control module 12 by data processing module 11, PID closed loop control module 12 receives the actual engine oil pressure that oil pressure sensor 23 sends simultaneously, when actual engine oil pressure is lower than target machine oil pressure, drive motor 30 faster rotational speed, when actual engine oil pressure is higher than target machine oil pressure, drive motor 30 rotating speed reduces, until the pressure of the main oil gallery of oil pressure sensor 23 measurement meets the pressure demand of engine lubrication system.
After ECU judges that motor is shut down, automatic control module 10 controls drive motor 30 to be continued to run 2-10s, and then automatic control module 10 controls drive motor 30 and closes.Because motor operates for a long time, engine oil temperature is very high, and after shutting down, oil pump is reruned a period of time, can ensure that between each moving element, oil film is complete, improves the maintenance performance of system.
When ECU judges that engine abnormity is shut down, automatic control module 10 controls drive motor 30 to be continued to run 2-10s, and then automatic control module 10 controls drive motor 30 and closes.When engine abnormity is shut down, the oil temperature of motor is very high, and between engine friction pair, due to the principle of expanding with heat and contract with cold, gap is very little, if high temperature is shut down, easily causes the phenomenon of the inordinate wear such as excessively heated axle, axis tile, causes engine damage.Now, oil pump is reruned a period of time, can ensure that between each moving element, oil film is complete, prevents the generation of inordinate wear between each friction pair.
Claims (7)
1. a control system for engine electric-controlled oil pump, is characterized in that: comprising:
Drive motor (30), for driving engine motor oil pump work;
Testing module (20), comprise the oil temperature sensor (21) for detecting engine oil temperature, for detecting the engine rotation speed sensor (22) of engine speed, and the oil pressure sensor (23) for detecting engine oil pressure;
Automatic control module (10), be connected with the data output end of testing module (20), according to oil temperature and the engine speed of described motor, determine target machine oil pressure, and the actual engine oil pressure that this target machine oil pressure and oil pressure sensor (23) record is compared, control drive motor (30) rotating speed according to comparative result output drive signal, make actual engine oil pressure maintain described target machine oil pressure.
2. the control system of engine electric-controlled oil pump according to claim 1, is characterized in that: described automatic control module (10) comprising:
Data processing module (11), is connected with the data output end of oil temperature sensor (21) with engine rotation speed sensor (22), according to oil temperature and the engine speed of motor, calculates target machine oil pressure;
PID closed loop control module (12), be connected with oil pressure sensor (23) with data processing module (11), receive the actual engine oil pressure that oil pressure sensor (23) detects, this actual engine oil pressure and described target machine oil pressure are compared, and exports control signal control drive motor (30) rotating speed according to comparative result.
3. the control system of engine electric-controlled oil pump according to claim 2, is characterized in that: described automatic control module (10) is integrated in ECU.
4. a controlling method for control system described in claim 1, is characterized in that:
Before engine start, when ECU is in POST state, automatic control module (10) controls described drive motor (30) and starts, and oil pump is just started working before an engine is started.
5. controlling method according to claim 4, it is characterized in that: after engine start, drive motor (30) drives oil pump to remain in operation, testing module (20) detects oil temperature and engine speed, and this information is sent to data processing module (11), data processing module (11) is according to oil temperature and engine speed determination target machine oil pressure, and oil temperature is higher, engine speed is faster, then target machine oil pressure force value is higher;
Target machine oil pressure force value is sent to PID closed loop control module (12) by data processing module (11), PID closed loop control module (12) receives the actual engine oil pressure that oil pressure sensor (23) sends simultaneously, when actual engine oil pressure is lower than target machine oil pressure, drive motor (30) faster rotational speed, when actual engine oil pressure is higher than target machine oil pressure, drive motor (30) rotating speed reduces.
6. controlling method according to claim 5; it is characterized in that: after ECU judges that motor is shut down; automatic control module (10) controls drive motor (30) to be continued to run 2-10s, and then automatic control module (10) controls drive motor (30) closedown.
7. controlling method according to claim 6; it is characterized in that: when ECU judges that engine abnormity is shut down; automatic control module (10) controls drive motor (30) to be continued to run 2-10s, and then automatic control module (10) controls drive motor (30) closedown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497541.4A CN105041408A (en) | 2015-08-13 | 2015-08-13 | Control system for electronically-controlled engine oil pump of engine, and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510497541.4A CN105041408A (en) | 2015-08-13 | 2015-08-13 | Control system for electronically-controlled engine oil pump of engine, and control method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106200428A (en) * | 2016-07-06 | 2016-12-07 | 中国第汽车股份有限公司 | Auxiliary oil pump motor speed self-adaptation control method |
| CN106382141A (en) * | 2016-11-30 | 2017-02-08 | 广西玉柴机器股份有限公司 | Electronic control oil pump device for diesel engine and control method |
| CN106567755A (en) * | 2016-11-04 | 2017-04-19 | 中国第汽车股份有限公司 | Variable displacement oil pump control system and control method thereof |
| CN107420178A (en) * | 2016-05-24 | 2017-12-01 | 现代自动车株式会社 | For the apparatus and method for controlling piston cooling machine oil to spray |
| CN109000388A (en) * | 2018-06-15 | 2018-12-14 | 重庆美的通用制冷设备有限公司 | Water cooler and its oil pump control method, device |
| CN109026259A (en) * | 2018-09-27 | 2018-12-18 | 潍柴动力股份有限公司 | A kind of engine lubrication system and its control method |
| CN109488461A (en) * | 2018-11-16 | 2019-03-19 | 中国航发湖南动力机械研究所 | Mitigate the control system and method for the load of aero-engine cold-starting |
| CN109578106A (en) * | 2019-02-15 | 2019-04-05 | 广西玉柴机器股份有限公司 | The electric variable flow machine oil pump system of engine |
| CN110671167A (en) * | 2019-11-27 | 2020-01-10 | 广西玉柴机器股份有限公司 | Control method of pre-supplied engine oil |
| CN111271303A (en) * | 2020-01-22 | 2020-06-12 | 西安陕鼓通风设备有限公司 | Oil station electric control system, ventilator unit control system and control method |
| CN111335981A (en) * | 2020-03-27 | 2020-06-26 | 东风商用车有限公司 | Engine oil pressure alarm method and system |
| CN111610030A (en) * | 2020-05-29 | 2020-09-01 | 中国航发湖南动力机械研究所 | Method and equipment for testing working state of engine |
| CN112211693A (en) * | 2019-07-09 | 2021-01-12 | 广州汽车集团股份有限公司 | Engine electric control variable displacement engine oil pump control method and control device |
| CN112253438A (en) * | 2020-10-14 | 2021-01-22 | 中国第一汽车股份有限公司 | Control method for engine variable oil pump |
| CN112502808A (en) * | 2019-09-16 | 2021-03-16 | 现代自动车株式会社 | Method for controlling oil pump of vehicle |
| CN112855305A (en) * | 2020-12-31 | 2021-05-28 | 杭州电子科技大学 | Nonlinear rotating speed control device and method for vehicle engine motor oil pump |
| CN115126566A (en) * | 2022-07-20 | 2022-09-30 | 湖南道依茨动力有限公司 | Engineering machine, control method and device thereof and readable storage medium |
| CN115234339A (en) * | 2022-08-22 | 2022-10-25 | 潍柴动力股份有限公司 | Engine oil pump assembly of engine, engine and engine oil pump rotating speed control method of engine |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420178A (en) * | 2016-05-24 | 2017-12-01 | 现代自动车株式会社 | For the apparatus and method for controlling piston cooling machine oil to spray |
| CN106200428A (en) * | 2016-07-06 | 2016-12-07 | 中国第汽车股份有限公司 | Auxiliary oil pump motor speed self-adaptation control method |
| CN106567755A (en) * | 2016-11-04 | 2017-04-19 | 中国第汽车股份有限公司 | Variable displacement oil pump control system and control method thereof |
| CN106382141A (en) * | 2016-11-30 | 2017-02-08 | 广西玉柴机器股份有限公司 | Electronic control oil pump device for diesel engine and control method |
| CN109000388A (en) * | 2018-06-15 | 2018-12-14 | 重庆美的通用制冷设备有限公司 | Water cooler and its oil pump control method, device |
| CN109026259A (en) * | 2018-09-27 | 2018-12-18 | 潍柴动力股份有限公司 | A kind of engine lubrication system and its control method |
| CN109488461A (en) * | 2018-11-16 | 2019-03-19 | 中国航发湖南动力机械研究所 | Mitigate the control system and method for the load of aero-engine cold-starting |
| CN109578106A (en) * | 2019-02-15 | 2019-04-05 | 广西玉柴机器股份有限公司 | The electric variable flow machine oil pump system of engine |
| CN112211693A (en) * | 2019-07-09 | 2021-01-12 | 广州汽车集团股份有限公司 | Engine electric control variable displacement engine oil pump control method and control device |
| CN112211693B (en) * | 2019-07-09 | 2022-01-18 | 广州汽车集团股份有限公司 | Engine electric control variable displacement engine oil pump control method and control device |
| CN112502808A (en) * | 2019-09-16 | 2021-03-16 | 现代自动车株式会社 | Method for controlling oil pump of vehicle |
| CN110671167A (en) * | 2019-11-27 | 2020-01-10 | 广西玉柴机器股份有限公司 | Control method of pre-supplied engine oil |
| CN111271303B (en) * | 2020-01-22 | 2021-01-01 | 西安陕鼓通风设备有限公司 | Oil station electric control system, ventilator unit control system and control method |
| CN111271303A (en) * | 2020-01-22 | 2020-06-12 | 西安陕鼓通风设备有限公司 | Oil station electric control system, ventilator unit control system and control method |
| CN111335981A (en) * | 2020-03-27 | 2020-06-26 | 东风商用车有限公司 | Engine oil pressure alarm method and system |
| CN111610030A (en) * | 2020-05-29 | 2020-09-01 | 中国航发湖南动力机械研究所 | Method and equipment for testing working state of engine |
| CN111610030B (en) * | 2020-05-29 | 2022-06-03 | 中国航发湖南动力机械研究所 | Method and equipment for testing working state of engine |
| CN112253438A (en) * | 2020-10-14 | 2021-01-22 | 中国第一汽车股份有限公司 | Control method for engine variable oil pump |
| CN112253438B (en) * | 2020-10-14 | 2022-05-27 | 中国第一汽车股份有限公司 | Control method for engine variable oil pump |
| CN112855305A (en) * | 2020-12-31 | 2021-05-28 | 杭州电子科技大学 | Nonlinear rotating speed control device and method for vehicle engine motor oil pump |
| CN115126566A (en) * | 2022-07-20 | 2022-09-30 | 湖南道依茨动力有限公司 | Engineering machine, control method and device thereof and readable storage medium |
| CN115126566B (en) * | 2022-07-20 | 2024-05-28 | 湖南道依茨动力有限公司 | Engineering machine, control method and device thereof and readable storage medium |
| CN115234339A (en) * | 2022-08-22 | 2022-10-25 | 潍柴动力股份有限公司 | Engine oil pump assembly of engine, engine and engine oil pump rotating speed control method of engine |
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