CN106812635A - A kind of engine glow plug control device and its control method - Google Patents
A kind of engine glow plug control device and its control method Download PDFInfo
- Publication number
- CN106812635A CN106812635A CN201710205874.4A CN201710205874A CN106812635A CN 106812635 A CN106812635 A CN 106812635A CN 201710205874 A CN201710205874 A CN 201710205874A CN 106812635 A CN106812635 A CN 106812635A
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- China
- Prior art keywords
- glow plug
- engine
- control unit
- control
- control device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/13—Combustion air
Abstract
The invention discloses a kind of engine glow plug control device, including control unit of engine, glow plug, glow plug control unit, glow plug wire harness, intake air temperature sensor and battery.The invention also discloses the control method of engine glow plug control device, mainly include that intake air temperature sensor reads Engine Inlet Temperature signal, control unit of engine judges demand for heat；Control unit of engine calculates the actual PWM duty cycle of heating power needed for glow plug and inputs to glow plug control unit；Glow plug control unit exports the actually required heated current of glow plug according to actual PWM duty cycle.The present invention can cause that the heat time of glow plug, heating power are effectively controlled, and solve engine cold-start difficult problem well.
Description
Technical field
The present invention relates to the technical field of engine, a kind of engine glow plug control device and its control are referred specifically to
Method.
Background technology
At present, in the prior art, with engine electronic control technology develop, for solve in the winter time temperature below -25 DEG C
Because engine oil viscosity high-drag is big, the low low-temperature cool starting difficult problem for causing of Engine Inlet Temperature, generally using electric heating
Plug heater.
In existing product, the control of engine glow plug is used and directly heats mode, when automobile ignition switch gets to ON grades, i.e.,
Heated to glow plug by battery, heat time, heating power can not be controlled.Simultaneously as being while to each cylinder
Glow plug heating, it is impossible to fault diagnosis is carried out to glow plug.
The content of the invention
A kind of above-mentioned deficiency in order to solve prior art of the invention, it is proposed that engine glow plug control device.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：A kind of engine glow plug control device,
It is characterized in that：Control unit of engine including automotive engine control, it is arranged on engine cylinder cover each cylinder and installs
Glow plug in hole, the glow plug control unit for controlling glow plug, the glow plug wire harness for connecting each glow plug, for surveying
Measure the intake air temperature sensor and the battery for powering of Engine Inlet Temperature, the control unit of engine, glow plug
Control unit, battery and intake air temperature sensor are arranged on a control circuit.The control circuit is additionally provided with trouble light.
The invention also discloses a kind of control method of engine glow plug control device, it is characterised in that including following step
Suddenly：
S10）Start automobile ignition switch to ON grades, intake air temperature sensor reads Engine Inlet Temperature signal, and signal
Control unit of engine is sent to, control unit of engine judges demand for heat；
S20）If desired heat, then control unit of engine calculates the actual PWM duty cycle of heating power needed for glow plug and defeated
Enter to glow plug control unit；
S30）Glow plug control unit exports the actually required heated current of glow plug according to actual PWM duty cycle；
S40）Fed back when the heated current that glow plug control unit is exported to glow plug does not obtain the output of 0 electric current, then glow plug 5
Actual heating power is heated to according to electric current.
In step S10）In if control unit of engine judge do not need demand for heat when, then carry out step S50）Electric heating
The heated current of plug is zero.
In step S40）In, when the heated current that glow plug control unit 6 is exported to glow plug 5 obtains the output of 0 electric current instead
Feedback, then the faulty feedback of glow plug 5, then move towards step S60, step S60）For control unit of engine 6 reads glow plug control
After the fault message of unit, that is, the trouble light installed in Auto Instrument desk is opened, point out glow plug faulty, according to engine control
The fault code indications of unit feedback processed, you can the fault message of diagnosis glow plug.
The invention mainly comprises control unit of engine, intake air temperature sensor, battery, glow plug, glow plug control
Unit, trouble light, glow plug wire harness.
The glow plug is rapid-heating type glow plug, is respectively assembled at engine cylinder and covers, and its heater block is located at engine
Combustion chamber.
The glow plug is connected with glow plug wire harness, glow plug control unit, control unit of engine, battery, by storing
Battery is powered, and control unit of engine exports PWM duty cycle and gives glow plug control according to the temperature signal of intake air temperature sensor
Unit, then corresponding electric current is exported to glow plug according to PWM duty cycle by glow plug control unit.
The intake air temperature sensor is assemblied on engine air inlet tube, for reading Engine Inlet Temperature.
The trouble light is assemblied on Auto Instrument desk, the fault message open and close according to control unit of engine.
Compared with prior art, control unit of engine of the invention stores system control program, can be according to difference
Engine Inlet Temperature export different PWM duty cycle information, while the current information fed back according to glow plug control unit
Judge whether each cylinder glow plug is faulty.Under such circumstances, can cause that the heat time of glow plug, heating power obtain effectively
Control, solves engine cold-start difficult problem well.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is control circuit diagram of the invention；
Fig. 3 is control method schematic diagram of the invention.
Specific embodiment
Invention is described in detail with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, engine glow plug control device proposed by the present invention, it is characterised in that：Including car engine
The control unit of engine 6 of machine control, the glow plug 5 being arranged in engine cylinder cover 4 each cylinder mounting holes, for controlling
The glow plug control unit 8 of glow plug 5, the glow plug wire harness 3 for connecting each glow plug 5, for measuring Engine Inlet Temperature
Intake air temperature sensor 2 and for power battery 7, control unit of engine 6, glow plug control unit 8, battery 7
It is arranged on a control circuit with intake air temperature sensor 2.Control circuit is additionally provided with trouble light 1.
Reference picture 3, in control, shown in step S10, after ignition switch gets to ON grades, intake air temperature sensor 2 is read
Take Engine Inlet Temperature and feed back signal to control unit of engine 6, judge whether that needs are carried out by control unit of engine 6
The computer heating control of glow plug 5, such as Engine Inlet Temperature are less than design temperature, then move towards step S20；As Engine Inlet Temperature is high
In design temperature, then step S50 is moved towards, control unit of engine 6 does not export the heating signal of glow plug 5.
3. reference picture 1, Fig. 2, in each cylinder mounting holes of engine cylinder cover 4 that glow plug 5 is assembled respectively, the head of glow plug 5
Portion's heating element heater is inserted into the combustion chamber of engine cylinder cover 4；Glow plug 5 by glow plug wire harness 3 respectively with battery 7, hair
Motivation control unit 6 and glow plug control unit 7 are connected, and are powered by battery 7.
4. reference picture 3, shown in step S20, control unit of engine 6 is according to the temperature signal of intake air temperature sensor 2, meter
Calculate the actual PWM duty cycle of heating power needed for glow plug and input to glow plug control unit 8.
5. reference picture 3, shown in step S30, it is actual that glow plug control unit 8 exports glow plug 5 according to actual PWM duty cycle
Required heated current, glow plug 5 is the inlet air heating power needed for providing engine start, and reaching engine combustion room temperature expires
The effect of sufficient engine start requirement.
6. reference picture 3, shown in step S40, when the heated current that glow plug control unit 6 is exported to glow plug 5 does not obtain 0
Electric current output feedback, then glow plug 5 is heated to actual heating power according to electric current；When glow plug control unit 6 is exported to electricity
The heated current of heat plug 5 obtains 0 electric current output feedback, then the faulty feedback of glow plug 5, then move towards step S60.
7. reference picture 3, shown in step S60, after control unit of engine 6 reads the fault message of glow plug control unit 8,
The trouble light 1 installed in Auto Instrument desk is opened, points out glow plug 5 faulty, according to the event that control unit of engine 6 feeds back
Barrier code information, you can the fault message of diagnosis glow plug 5.
Above-described embodiment only expresses several embodiments of the invention, and its description is more specific and detailed, but can not
Therefore understands that being the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.
Therefore, patent of the present invention and protection domain should be defined by appended claims.
Claims (5)
1. a kind of engine glow plug control device, it is characterised in that：Engine control including automotive engine control is single
Unit（6）, be arranged on engine cylinder cover（4）Glow plug in each cylinder mounting holes（5）, for controlling glow plug（5）Electric heating
Plug control unit（8）, connect each glow plug（5）Glow plug wire harness（3）, for measure Engine Inlet Temperature enter temperature
Degree sensor（2）With the battery for powering（7）, the control unit of engine（6）, glow plug control unit（8）, electric power storage
Pond（7）And intake air temperature sensor（2）It is arranged on a control circuit.
2. engine glow plug control device as claimed in claim 1, it is characterised in that：The control circuit is additionally provided with failure
Lamp（1）.
3. the control method of the engine glow plug control device described in a kind of claim 1, it is characterised in that including following step
Suddenly：
S10）Start automobile ignition switch to ON grades, intake air temperature sensor reads Engine Inlet Temperature signal, and signal
Control unit of engine is sent to, control unit of engine judges demand for heat；
S20）If desired heat, then control unit of engine calculates the actual PWM duty cycle of heating power needed for glow plug and defeated
Enter to glow plug control unit；
S30）Glow plug control unit exports the actually required heated current of glow plug according to actual PWM duty cycle；
S40）Fed back when the heated current that glow plug control unit is exported to glow plug does not obtain the output of 0 electric current, then glow plug 5
Actual heating power is heated to according to electric current.
4. the control method of engine glow plug control device as claimed in claim 3, it is characterised in that：In step S10）In
If control unit of engine judges not needing demand for heat, step S50 is carried out）The heated current of glow plug is zero.
5. the control method of engine glow plug control device as claimed in claim 3, it is characterised in that：In step S40）
In, when the heated current that glow plug control unit 6 is exported to glow plug 5 obtains 0 electric current output feedback, then glow plug 5 is faulty
Feedback, then move towards step S60, step S60）After reading the fault message of glow plug control unit for control unit of engine 6, i.e.,
The trouble light installed in Auto Instrument desk is opened, points out glow plug faulty, according to the DTC that control unit of engine feeds back
Information, you can the fault message of diagnosis glow plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205874.4A CN106812635A (en) | 2017-03-31 | 2017-03-31 | A kind of engine glow plug control device and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205874.4A CN106812635A (en) | 2017-03-31 | 2017-03-31 | A kind of engine glow plug control device and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN106812635A true CN106812635A (en) | 2017-06-09 |
Family
ID=59116362
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710205874.4A Pending CN106812635A (en) | 2017-03-31 | 2017-03-31 | A kind of engine glow plug control device and its control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106812635A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915911A (en) * | 2018-06-13 | 2018-11-30 | 中国北方发动机研究所(天津) | The air inlet for improving the starting of diesel engine low temperature low-voltage heats heater plug power supply circuit |
| CN109098910A (en) * | 2018-09-07 | 2018-12-28 | 浙江吉利控股集团有限公司 | A kind of auxiliary system starting method and apparatus |
| CN109630338A (en) * | 2018-10-30 | 2019-04-16 | 中国北方发动机研究所(天津) | A kind of glow plug control system that supply voltage is adaptive |
| CN110185559A (en) * | 2019-06-29 | 2019-08-30 | 潍柴动力股份有限公司 | A kind of inlet air heating control method, apparatus and system |
| CN111535948A (en) * | 2020-05-22 | 2020-08-14 | 潍柴动力股份有限公司 | Method and device for controlling intake air heating |
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| CN106224136A (en) * | 2016-08-29 | 2016-12-14 | 潍柴动力股份有限公司 | The inlet air heating system of a kind of electromotor and Poewr control method thereof |
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| CN1036815A (en) * | 1989-02-28 | 1989-11-01 | 华南理工大学 | Self-controlled thermal insulation surface ignition devices and methods therefor |
| CN2585984Y (en) * | 2002-12-05 | 2003-11-12 | 天津大学 | Methyl alcohol fuel engine |
| CN1506565A (en) * | 2002-12-05 | 2004-06-23 | 天津大学 | Methane fuel engine with very low discharge |
| EP2362709A2 (en) * | 2006-02-17 | 2011-08-31 | Phillips and Temro Industries Inc. | Solid state switch with over-temperature and over-current protection |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915911A (en) * | 2018-06-13 | 2018-11-30 | 中国北方发动机研究所(天津) | The air inlet for improving the starting of diesel engine low temperature low-voltage heats heater plug power supply circuit |
| CN109098910A (en) * | 2018-09-07 | 2018-12-28 | 浙江吉利控股集团有限公司 | A kind of auxiliary system starting method and apparatus |
| CN109630338A (en) * | 2018-10-30 | 2019-04-16 | 中国北方发动机研究所(天津) | A kind of glow plug control system that supply voltage is adaptive |
| CN110185559A (en) * | 2019-06-29 | 2019-08-30 | 潍柴动力股份有限公司 | A kind of inlet air heating control method, apparatus and system |
| CN110185559B (en) * | 2019-06-29 | 2020-09-29 | 潍柴动力股份有限公司 | Intake air heating control method, device and system |
| CN111535948A (en) * | 2020-05-22 | 2020-08-14 | 潍柴动力股份有限公司 | Method and device for controlling intake air heating |
| CN111535948B (en) * | 2020-05-22 | 2021-05-18 | 潍柴动力股份有限公司 | Method and device for controlling intake air heating |
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Application publication date: 20170609 |