CN108343524A - A kind of gasoline engine is early to fire phenomenon cycle controlling system and its control method - Google Patents
A kind of gasoline engine is early to fire phenomenon cycle controlling system and its control method Download PDFInfo
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- CN108343524A CN108343524A CN201810069495.1A CN201810069495A CN108343524A CN 108343524 A CN108343524 A CN 108343524A CN 201810069495 A CN201810069495 A CN 201810069495A CN 108343524 A CN108343524 A CN 108343524A
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- gasoline engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/12—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
-
- 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
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/03—Adding water into the cylinder or the pre-combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0614—Actual fuel mass or fuel injection amount
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of gasoline engine, early combustion phenomenon recycles controlling system and its control method, high-pressure water jet in air throttle, spark plug and the cylinder that the control system includes Gasoline Engine Body, is arranged on Gasoline Engine Body, high-pressure water jet connects the mechanism that sprays water with high pressure in cylinder, spark plug is sequentially connected high voltage silicon rectifier stack, high direct voltage component and adaptive resistance, they form ionic current measure loop with Gasoline Engine Body, adaptive resistance connection signal processor and microprocessor, high-pressure water jet connects microprocessor in cylinder.Compared with prior art, the present invention passes through to ionic current samples in cylinder, in gasoline engine early ionic current characteristic signal is detected before combustion phenomenon occurs, and the control strategy formulated by microprocessor by high-pressure water jet in cylinder to in-cylinder water injection, to avoid a series of early Abnormal combustions for firing initiation, ensure that the ignition advance angle of the more limit may be used in gasoline engine, is substantially improved that gasoline engine is economical and dynamic property in the case where ensuring gasoline engine durability.
Description
Technical field
The invention belongs to technical field of internal combustion engines, more particularly, to a kind of gasoline engine early combustion phenomenon cycle controlling system and
Its control method.
Background technology
With the gradual sternness of motor vehicle energy consumption, national governments and associated mechanisms have put into effect more stringent oil consumption mark
Standard maintains the sound development of automotive field, the especially Chinese government, has launched《Passenger Car Fuel Consumption Standard consumption limit value》
With《Passenger car enterprise average fuel consumption integrates concurrent management method with new-energy automobile》Deng, it is proposed that my National IV phase is oily
Target is consumed, i.e. the year two thousand twenty vehicle enterprise average fuel consumption will control in 5L/100km, this is undoubtedly to using gasoline engine as main power source
Chinese passenger car market proposes abnormal harsh requirement.
In face of above-mentioned challenge, each cart enterprise and research institution are dedicated to increasing by reducing cylinder displacement, improving both at home and abroad
Pressure pressure ratio increases the Technology Ways such as geometrical compression ratio, the big expansion stroke for using optimization to reduce gasoline engine fuel consumption rate
More optimized gasoline engine performance performance is ensured simultaneously.With the gradual reinforcement of gasoline engine reinforcing degree, gasoline engine Abnormal combustion
The occurrence frequency of phenomenon significantly improves, especially with it is early fire for representative serious Abnormal combustion phenomenon gradually by engineer and
The attention of scientific research personnel.Early combustion phenomenon belongs to incident in gasoline engine combustion process, super quick-fried caused by early firing phenomenon
Shake is so that in-cylinder pressure drastically increases, and significantly in-cylinder pressure fluctuation occurs, and leads to gasoline engine spark plug, oil spout therewith
The important process parts damages such as device, piston ring, piston bring very serious influence to the reliably working of gasoline engine.
As the incident in gasoline engine combustion process, the early induced factor for firing phenomenon and formation mechanism are extremely complex,
Lack detection means in effective cylinder, and can not accomplish to control early combustion phenomenon while not sacrificing gasoline engine efficiency.Needle at present
Early combustion phenomenon control to gasoline engine, is mainly realized by detonation sensor and postponement time of ignition, is examined by detonation sensor
The abnormal magnitude of vibrations of Gasoline Engine Body is surveyed, then the time of ignition of follow-up work cycle is postponed, it is follow-up to ensure
No longer there is early combustion phenomenon in cycle.Above-mentioned control means cannot achieve detection in the cycle of early combustion phenomenon, and to having occurred and that morning
The working cycles of combustion are helpless, to can not fundamentally avoid the early damage for firing phenomenon to gasoline engine.Therefore, there is an urgent need for exploitations
A kind of gasoline engine is early to fire diagnosis and control method in phenomenon cylinder.
Invention content
The purpose of the present invention is exactly to solve the above-mentioned problems and provides a kind of gasoline engine early control system in combustion phenomenon cycle
System and its control method.
The purpose of the present invention is achieved through the following technical solutions：
Early combustion phenomenon recycles controlling system for a kind of gasoline engine, including Gasoline Engine Body, is arranged on Gasoline Engine Body
High-pressure water jet in air throttle, spark plug and cylinder, in the cylinder high-pressure water jet connection spray water with high pressure mechanism, the spark
Plug is sequentially connected high voltage silicon rectifier stack, high direct voltage component and adaptive resistance, they form ionic current detection with Gasoline Engine Body
Circuit, the adaptive resistance connection signal processor and microprocessor, high-pressure water jet connects microprocessor, work in the cylinder
When making, the voltage after promotion is acted on spark plug by the high direct voltage component by high voltage silicon rectifier stack, the shape in Gasoline Engine Body
Electric field is detected at ionic current, collected ion current signal is converted to by voltage signal by adaptive resistance, passes through letter
Number processor acquisition process, is subsequently transmitted to microprocessor, and the water spray of high-pressure water jet, which is realized, in master cylinder early fires gasoline engine
The control of phenomenon allows being operated under the time of ignition strategy more shifted to an earlier date for gasoline engine safety, is more preferably fired to obtain
The economic sex expression of oil.
Further technical solution, the mechanism that sprays water with high pressure include high pressure water rail, high-pressure hydraulic pump and water tank, described
High-pressure hydraulic pump obtains energy by connecting protruding axis for gasoline machine.
Further technical solution, the hydraulic pressure in the high pressure water rail is 25-35MPa, can meet gasoline engine combustion process
In injection pressure, and in course of injection middle cylinder water jet end injection pressure stability.
Further technical solution, the water tank, high-pressure hydraulic pump, high pressure water rail and pipeline in connection are height
Style stainless steel, working media are distilled water, to ensure the reliability and durability of system work.
Further technical solution, in order to realize the displacement of Engine combustion process ionic current, the fire
Hua Sai is connected to high direct voltage component after high voltage silicon rectifier stack is isolated, and wherein high direct voltage component passes through gasoline engine 12V accumulators
Or 48V lithium battery power supplies, and the low-voltage dc voltage is promoted to after 100-150V, Gasoline Engine Body is applied to by spark plug
It is interior, to halt to electric field combustion chamber of petrol engine is built-in.
The gasoline engine early fires the control method of phenomenon cycle controlling system, specifically includes following steps：
(a) after gasoline engine is started to work, the voltage signal of acquisition is carried out integral and calculating by microprocessor, when result is more than to set
After determining threshold value, go to step (b)；
(b) according to the fuel injection amount of previous cycle and petrol engine rotational speed, the in-cylinder water injection amount that need to currently intervene is determined, and
The water spray is transmitted to pulse-width signal in cylinder on high-pressure water jet solenoid valve, water spray action is executed.
The determination of step (b) the in-cylinder water injection amount is according to fuel injection amount/petrol engine rotational speed/spray that early period, calibration was established
The tri- coordinate MAP chart of XYZ that water intervenes operating mode in-cylinder water injection amount determines.In order to ensure that water jet intervenes the Engine internal combustion of operating mode
Efficiency is burnt, needs to carry out closed-loop control to the in-cylinder water injection amount under gasoline engine difference operating mode, the feedback signal of the closed-loop control has
The fuel injection amount of previous cycle is provided with current gasoline machine rotating speed, is sprayed by the fuel oil that early period, gasoline engine rating test was established
The tri- coordinate MAP chart of XYZ of amount/petrol engine rotational speed/water spray intervention operating mode in-cylinder water injection amount, realize according to different fuel injection amounts and
Petrol engine rotational speed, which is tabled look-up, determines the in-cylinder water injection amount that intervenes of currently needing, avoids early firing inhibition caused by in-cylinder water injection amount is too small
The case where previous cycle efficiency of combustion of the gasoline engine caused by in-cylinder water injection amount is excessive declines to a great extent also has been evaded in failure.
Compared with prior art, the present invention carries out look-ahead using ionic current detection technique in cylinder to early combustion phenomenon,
It is predicted before the burning in gasoline device working cycles can be achieved, and by carrying out integral operation to collected ion current signal,
Judge the ionic current integrated value size before time of ignition, and unlatching control is carried out to high-pressure water jet in cylinder, and is directed to gasoline
Machine difference operating mode carries out closed-loop control to in-cylinder water injection amount, on the basis of not influencing petrol engine combustion efficiency, realizes to current
The early combustion phenomenon of cycle inhibits, and gasoline engine is thoroughly avoided early to fire, to evade super detonation etc. caused by early firing to gasoline
Machine functional reliability causes the Abnormal combustion seriously endangered with durability.
Description of the drawings
Fig. 1 is the structural schematic diagram of control system of the present invention；
Fig. 2 is the ion current signal contrast schematic diagram of the present invention early combustion cycle and normal circulation；
Fig. 3 is high-pressure water jet control logic schematic diagram in ionic current of the present invention detection and cylinder；
In figure：1- Gasoline Engine Bodies；2- air throttles；3- water tanks；4- high-pressure hydraulic pumps；5- high pressure water rails；High pressure spray in 6- cylinders
Hydrophone；7- spark plugs；8- high voltage silicon rectifier stacks；9- high direct voltage components；The adaptive resistance of 10-；11- signal processors；12- microprocessors
Device.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Referring to Fig.1, early combustion phenomenon recycles controlling system, including Gasoline Engine Body 1, air throttle 2, spark to a kind of gasoline engine
It is plug 7, high-pressure water jet 6 in cylinder, high pressure water rail 5, high-pressure hydraulic pump 4, water tank 3, high voltage silicon rectifier stack 8, high direct voltage component 9, adaptive
Resistance 10, signal processor 11 and microprocessor 12, wherein air throttle 2, spark plug 7, high-pressure water jet 6 is installed in vapour in cylinder
On oil machine body 1, it is respectively used to control petrol engine air admission amount, igniting and in-cylinder water injection.The height of high-pressure water jet 6 in cylinder
Pressure water is stored in high pressure water rail 5, and the volume of high pressure water rail 5 is much larger than single cycle water spray, therefore can be used as source of stable pressure stabilization
The injection pressure of course of injection, the high-pressure hydraulic pump 4 that high pressure water is driven by protruding axis for gasoline machine are prepared after being forced into 25-35MPa
It forms, the water source in high-pressure hydraulic pump comes from water tank 3.The detection of gasoline engine ionic current is by high direct voltage component 9 by gasoline engine
The 12V of the accumulator or 48V of lithium battery boosts to the spark plug 7 being isolated by high voltage silicon rectifier stack 8 after 100-150V and is applied to gasoline
In machine combustion chamber, high voltage electric field can allow ion, the electronics generated in fossil fuel combustion process in cylinder in the combustion chamber of the application
Displacement occurs, to form weak current in detection circuit, which forms after high-accuracy self-adaptation resistance 10
Voltage, and output is filtered etc. after processing to microprocessor 12 by signal processor 11.The present embodiment passes through spark plug
After high voltage silicon rectifier stack isolation, it is connected to high direct voltage component anode, by applying high voltage electric field between body and spark plug to allow
The ion that is generated in combustion process forms displacement, high direct voltage component cathode by two adaptive resistance, and two from
It adapts to by signal processor sample the ionic current for showing as voltage signal between resistance, microprocessor is to receiving
After voltage signal is calculated according to control flow, high-pressure water jet executes relevant operation in master cylinder.
Fig. 2 is the ionic current of early combustion cycle and normal circulation that ionic current detection circuit using the present invention detects
Signal contrast schematic diagram.From the figure, it can be seen that when early combustion phenomenon occurs, when a large amount of ion current signal appears in igniting
Before quarter, therefore by carrying out integral operation to the ion current signal before time of ignition, and set control threshold, so that it may to sentence
Whether oil machine of cutting steam present duty cycle occurs early combustion phenomenon, to judge whether to need to execute in-cylinder water injection action.
High-pressure water jet control logic is as shown in Figure 3 in the specific ionic current detection of the present invention and cylinder.It can be with from Fig. 3
See, after gasoline engine is started to work, ionic current detecting system works on power, and carries out lasting adopt to ionic current in cylinder
Collection and integral operation are then spaced in before time of ignition 90 ° to right in the section of 0 ° of crank angle according to 0.5 ° of crank angle
The result of current integration operation carries out continuing inquiry, after integral operation result is more than the threshold value of setting, passes through previous cycle
Distributive value and petrol engine rotational speed, fuel injection amount/petrol engine rotational speed/water spray that gasoline engine rating test is established from early period intervene work
The tri- coordinate MAP chart of XYZ of condition in-cylinder water injection amount inquires the in-cylinder water injection amount that need to currently intervene, and by the water spray with pulsewidth tune
In signal transmission to cylinder processed on high-pressure water jet solenoid valve, in-cylinder water injection action is carried out, the high-pressure water mist spray to optimize
Enter combustion chamber, realizes that early combustion phenomenon on the basis of not influencing in-cylinder combustion efficiency inhibits, thoroughly avoid caused by early firing
The Abnormal combustion that super detonation etc. causes to seriously endanger to gasoline engine functional reliability and durability.Control through the invention
Method can allow gasoline engine to be operated under the time of ignition of optimization, to realize gasoline engine optimum performance and fuel economy,
There are huge economic benefit and utility value with fuel economy regulation to reply automobile industry energy problem.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to the embodiment, and described herein one
As principle be applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to embodiment here,
Those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in this hairs
Within bright protection domain.
Claims (7)
1. early combustion phenomenon recycles controlling system, including Gasoline Engine Body (1), setting in Gasoline Engine Body (1) to a kind of gasoline engine
On air throttle (2), high-pressure water jet (6) in spark plug (7) and cylinder, high-pressure water jet (6) connects high pressure spray in the cylinder
Water dispenser structure, which is characterized in that the spark plug (7) is sequentially connected high voltage silicon rectifier stack (8), high direct voltage component (9) and adaptive
Resistance (10), they form ionic current measure loop with Gasoline Engine Body (1), at adaptive resistance (10) connection signal
Device (11) and microprocessor (12) are managed, high-pressure water jet (6) connects microprocessor (12) in the cylinder,
When work, the voltage after promotion is acted on spark plug (7) by the high direct voltage component (9) by high voltage silicon rectifier stack (8),
Ionic current is formed in Gasoline Engine Body (1) and detects electric field, by adaptive resistance (10) by collected ion current signal
Voltage signal is converted to, by signal processor (11) acquisition process, is subsequently transmitted to microprocessor (12), high pressure in master cylinder
The water spray of water jet (6) realizes the control that phenomenon is early fired to gasoline engine.
2. early combustion phenomenon recycles controlling system to a kind of gasoline engine according to claim 1, which is characterized in that the height
Pressure water spraying mechanism includes high pressure water rail (5), high-pressure hydraulic pump (4) and water tank (3), and the high-pressure hydraulic pump (4) is by connecting gasoline
Machine camshaft obtains energy.
3. early combustion phenomenon recycles controlling system to a kind of gasoline engine according to claim 2, which is characterized in that the high pressure
Hydraulic pressure in water rail (5) is 25-35MPa.
4. early combustion phenomenon recycles controlling system to a kind of gasoline engine according to claim 2, which is characterized in that the water
Case (3), high-pressure hydraulic pump (4), high pressure water rail (5) and pipeline in connection are high style stainless steel, working media
For distilled water.
5. early combustion phenomenon recycles controlling system to a kind of gasoline engine according to claim 1, which is characterized in that described is straight
High potential assembly (9) is flowed by gasoline engine 12V accumulators or 48V lithium battery power supplies, and raises voltage to 100-150V.
6. a kind of gasoline engine as described in any one in claim 1-5 early fires the control method of phenomenon cycle controlling system,
It is characterized in that, specifically includes following steps：
(a) after gasoline engine is started to work, the voltage signal of acquisition is carried out integral and calculating by microprocessor, when result is more than setting threshold
After value, go to step (b)；
(b) according to the fuel injection amount of previous cycle and petrol engine rotational speed, the in-cylinder water injection amount that need to currently intervene is determined, and should
Water spray is transmitted to pulse-width signal in cylinder on high-pressure water jet solenoid valve, executes water spray action.
7. gasoline engine according to claim 6 early fires the control method of phenomenon cycle controlling system, which is characterized in that step
Suddenly the determination of (b) described in-cylinder water injection amount intervenes operating mode according to fuel injection amount/petrol engine rotational speed/water spray that early period, calibration was established
The tri- coordinate MAP chart of XYZ of in-cylinder water injection amount determines.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017109473517 | 2017-10-12 | ||
| CN201710947351 | 2017-10-12 |
Publications (1)
| Publication Number | Publication Date |
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| CN108343524A true CN108343524A (en) | 2018-07-31 |
Family
ID=62961127
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810069495.1A Pending CN108343524A (en) | 2017-10-12 | 2018-01-24 | A kind of gasoline engine is early to fire phenomenon cycle controlling system and its control method |
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| CN (1) | CN108343524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237076A (en) * | 2020-01-20 | 2020-06-05 | 同济大学 | Feedforward control method for incomplete combustion and detonation of homogeneous charge compression ignition engine |
| CN113640630A (en) * | 2021-08-03 | 2021-11-12 | 广东省医疗器械质量监督检验所 | Method and system for testing pipeline gas pressure regulator |
| CN117846797A (en) * | 2024-02-27 | 2024-04-09 | 潍柴动力股份有限公司 | Control method, device and equipment of knock suppression system of hydrogen engine |
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| CN104564483A (en) * | 2015-01-04 | 2015-04-29 | 同济大学 | Detection device and method for detecting pre-ignition of spark plug ignition type engine |
| US20190120177A1 (en) * | 2017-10-24 | 2019-04-25 | Robert Bosch Gmbh | Method and device for operating a combustion engine |
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| US5204630A (en) * | 1991-06-26 | 1993-04-20 | Allied Signal Inc. | Preignition warning device |
| US6089077A (en) * | 1997-06-26 | 2000-07-18 | Cooper Automotive Products, Inc. | Mass fraction burned and pressure estimation through spark plug ion sensing |
| JPH11294249A (en) * | 1998-04-06 | 1999-10-26 | Denso Corp | Abnormality detecting device of internal combustion engine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237076A (en) * | 2020-01-20 | 2020-06-05 | 同济大学 | Feedforward control method for incomplete combustion and detonation of homogeneous charge compression ignition engine |
| CN111237076B (en) * | 2020-01-20 | 2021-12-31 | 同济大学 | Feedforward control method for incomplete combustion and detonation of homogeneous charge compression ignition engine |
| CN113640630A (en) * | 2021-08-03 | 2021-11-12 | 广东省医疗器械质量监督检验所 | Method and system for testing pipeline gas pressure regulator |
| CN113640630B (en) * | 2021-08-03 | 2024-02-06 | 广东省医疗器械质量监督检验所 | Testing method and system for pipeline gas pressure regulator |
| CN117846797A (en) * | 2024-02-27 | 2024-04-09 | 潍柴动力股份有限公司 | Control method, device and equipment of knock suppression system of hydrogen engine |
| CN117846797B (en) * | 2024-02-27 | 2024-06-18 | 潍柴动力股份有限公司 | Control method, device and equipment of knock suppression system of hydrogen engine |
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Application publication date: 20180731 |