CN114033561B - Control method of super knocking power assembly of supercharged gasoline engine - Google Patents
Control method of super knocking power assembly of supercharged gasoline engine Download PDFInfo
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- CN114033561B CN114033561B CN202111411414.XA CN202111411414A CN114033561B CN 114033561 B CN114033561 B CN 114033561B CN 202111411414 A CN202111411414 A CN 202111411414A CN 114033561 B CN114033561 B CN 114033561B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002829 reductive effect Effects 0.000 claims description 3
- 238000005474 detonation Methods 0.000 abstract description 12
- 238000003672 processing method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 8
- 238000004880 explosion Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical compound C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0261—Controlling the valve overlap
-
- 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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- 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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D43/00—Conjoint electrical control of two or more functions, e.g. ignition, fuel-air mixture, recirculation, supercharging or exhaust-gas treatment
Abstract
The invention discloses a control method of a super knocking power assembly of a supercharged gasoline engine, which comprises the following steps: s1, after the super knocking signal is detected to reach a first set value, implementing a mixed gas enrichment control measure, and enabling the gearbox to reach a first target rotating speed; s2, after the super knocking signal is detected to reach a second set value, implementing a valve overlap angle reducing control measure, and enabling the gearbox to reach a second target rotating speed; s3, after the super knocking signal is detected to reach a third set value, implementing a measure for reducing the air inflow; simultaneously enabling the gearbox to reach a third target rotating speed; s3, after the super knocking signal is detected to reach a fourth set value, implementing fuel cut control measures; and simultaneously, the gearbox reaches a fourth target rotating speed. According to the control method of the supercharged gasoline engine super-detonation power assembly, from the perspective of the power assembly, the scheme of cooperative control of the speed increasing strategy of the gearbox and the four-step processing method of the engine super-detonation is provided, so that the super-detonation of the whole vehicle can be effectively relieved.
Description
Technical Field
The invention belongs to the technical field of electronic control of gasoline engines, and particularly relates to a control method of a super knocking power assembly of a supercharged gasoline engine.
Background
The gasoline engine supercharging technology is a mainstream technology for realizing miniaturization and low speed of the gasoline engine at home and abroad, and can greatly reduce the oil consumption of the whole vehicle and improve the dynamic property. However, by applying the technology, the explosion pressure peak value and the combustion temperature peak value in the cylinder are also obviously increased while the gasoline engine can output higher torque and power, and the spontaneous combustion of the fuel/air mixture, namely super knocking (also called super knocking in the industry) is extremely easy to occur before the ignition of the spark plug. The conventional knocking is different in that the super knocking cannot be eliminated due to the fact that the ignition advance angle is retarded, the super knocking is sporadic and intermittent, the advanced controllability is poor, the super knocking abnormal combustion of the supercharged gasoline engine is thoroughly eliminated, the technical problem is widely recognized in the industry, and the occurrence frequency of the super knocking is only controlled, so that the engine is prevented from being damaged under the condition of the excessively high super knocking combustion frequency.
The prior super-knock control strategy is that the ECU prevents subsequent continuous super-knock from occurring through strategies such as air-fuel ratio enrichment, VVT adjustment, intake charge reduction or cylinder cut-off after the ECU detects super-knock based on the super-knock result of an engine bench. The existing control scheme relieves super knocking from the angle of engine control, the rotation speed and torque of the engine fluctuate, running irregularity is influenced, drivability is seriously influenced, and optimization and perfection are needed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a control method of a super-detonation power assembly of a supercharged gasoline engine, which aims to effectively relieve super-detonation of the whole vehicle and keep the dynamic property and smoothness of the whole vehicle.
In order to solve the technical problems, the invention adopts the following technical scheme: the control method of the super knocking power assembly of the supercharged gasoline engine comprises the following steps:
s1, after the super knocking signal is detected to reach a first set value, implementing a mixed gas enrichment control measure, and simultaneously acquiring a first target rotating speed increasing value to enable the gearbox to reach the first target rotating speed;
s2, after the super knocking signal is detected to reach a second set value, implementing a valve overlap angle reducing control measure, reducing the valve phase overlap angle of an engine intake valve and an engine exhaust valve, and keeping for a period of time; simultaneously acquiring a second target rotating speed increasing value to enable the gearbox to reach the second target rotating speed;
s3, after the super knocking signal is detected to reach a third set value, implementing a measure for reducing the air inflow; simultaneously acquiring a third target rotating speed increasing value to enable the gearbox to reach the third target rotating speed;
s4, implementing fuel cut-off control measures after detecting that the super knocking signal reaches a fourth set value; and simultaneously acquiring a fourth target rotating speed increasing value to enable the gearbox to reach the fourth target rotating speed.
In the step S1, after the mixed gas enrichment control measure is implemented, the excess air ratio is 0.75-0.8.
In the step S1, the duration of the gas mixture enrichment control measure is 10-15S.
In the step S1, the continuous operation time is 10 to 15S after the transmission reaches the first target rotation speed.
In the step S1, during the continuous running process when the transmission reaches the first target rotational speed, the clutch temperature is monitored in real time, and when the clutch temperature exceeds the set value, the downshift scheme is executed.
In the step S2, the valve phase overlap angle of the engine intake valve and the engine exhaust valve is reduced, and the holding time is 15-20S.
In the step S3, the duration of the intake air amount reducing control measure is 10 to 15 seconds.
In the step S4, the duration of implementing the fuel cut control measures is 10-15S.
According to the control method for the supercharged gasoline engine super-detonation power assembly, from the perspective of the power assembly, the scheme of the cooperative control of the speed increasing strategy of the gearbox and the engine super-detonation four-step processing method is provided, so that the super-detonation of the whole vehicle can be effectively relieved, and meanwhile, the power performance and smoothness of the whole vehicle can be maintained.
Drawings
FIG. 1 is a flow chart of a method for controlling a super knock powertrain of a supercharged gasoline engine of the present invention;
FIG. 2 is a schematic diagram of the super knock increase target speed MAP for a TCU.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.
It should be noted that, in the following embodiments, the "first", "second" and "third" do not represent an absolute distinction between structures and/or functions, and do not represent a sequential order of execution, but are merely for convenience of description.
As shown in FIG. 1, the invention provides a control method of a super knocking power assembly of a supercharged gasoline engine, which comprises the following steps:
s1, after the super knocking signal is detected to reach a first set value, implementing a mixed gas enrichment control measure, and simultaneously acquiring a first target rotating speed increasing value to enable the gearbox to reach the first target rotating speed;
s2, after the super knocking signal is detected to reach a second set value, implementing a valve overlap angle reducing control measure, reducing the valve phase overlap angle of an engine intake valve and an engine exhaust valve, and keeping for a period of time; simultaneously acquiring a second target rotating speed increasing value to enable the gearbox to reach the second target rotating speed;
s3, after the super knocking signal is detected to reach a third set value, implementing a measure for reducing the air inflow; simultaneously acquiring a third target rotating speed increasing value to enable the gearbox to reach the third target rotating speed;
s4, implementing fuel cut-off control measures after detecting that the super knocking signal reaches a fourth set value; and simultaneously acquiring a fourth target rotating speed increasing value to enable the gearbox to reach the fourth target rotating speed.
Specifically, in the supercharged gasoline engine, the higher the engine speed, the faster the engine combustion rate (mainly, the higher the engine speed, the greater the in-cylinder turbulence energy, the higher the combustion rate, and the earlier the ignition angle) itself occurs in the 1250r/min to 3500r/min interval. Meanwhile, the higher the engine rotating speed is, the lower the engine demand torque is, the high temperature in the cylinder is obviously reduced, and then the lower the super explosion frequency is.
Based on the theory, under the condition that the engine recognizes super knocking, the automatic gearbox calls MAP to obtain the target engine rotating speed while the engine adopts four-step strategies of air-fuel ratio enrichment, VVT adjustment, load reduction or cylinder breaking to prevent subsequent continuous super knocking, and the gearbox is controlled to achieve the target engine rotating speed. The gearbox is connected with the engine through a clutch, the speed of the engine is increased by the gearbox, and the four-step super-detonation method of the engine is coordinated, so that the technical method of the super-detonation power assembly is formed.
The overall technical scheme is as follows:
(1) The ECU system adopts four steps of gas mixture enrichment, VVT overlap angle reduction, air intake charge limitation and fuel cut-off after the system recognizes the super-knock signal by means of the signal of the knock sensor. The super knock control technology of the engine executes which step, depending on the on-line detection of the super knock signal by the ECU of the engine, the super knock signal is detected to continuously occur within the preset time, and then the next step is adopted; otherwise, returning to the previous step, and continuously monitoring the super knock signal and judging the step. (2) The ECU processes the super-knock and sends an EngSupKonck representing the super-knock signal through a network architecture CAN signal. (3) The TCU receives EngSupKonck value through the CAN signal, and according to the EngSupKonck value, the TCU inquires the super knock control EngSupKonck_MAP graph to acquire the target increased rotating speed of the engine. (4) The TCU controls the gearbox to reach the target rotating speed according to the target rotating speed. Specific strategies vary depending on the type of transmission.
As shown in fig. 1, the engine controller ECU collects vibration signals generated by the knock sensor in real time, the sensor signal processing module integrates the knock signals, and if the detected engine vibration signals are filtered by a filter to remove signals outside a pre-calibrated pre-ignition window, that is, the engine recognizes super-knock. The engine control system performs four steps of mixture enrichment (S1-E), reducing the VVT overlap angle (S2-E), limiting the intake charge (S3-E), and fuel cut (S4-E) in a step-by-step manner. The ECU processes the super-knock and sends an EngSupKonck representing the super-knock signal through a network architecture CAN signal.
In the above step S1, the first setting value is 1. After the ECU recognizes the first super-knock signal, the ECU transmits the super-knock signal to the CAN bus, wherein the super-knock signal EngSupKonck=1; meanwhile, the ECU performs mixed gas enrichment control measures by increasing the oil injection time of the oil injector, the excess air coefficient is enriched from 1 to 0.75-0.8, the excess air coefficient is 0.75-0.8, the specific value is well calibrated on an engine bench, and the different working condition values are different. The mixture is enriched for about 10 to 15 seconds, and meanwhile, the super knock signal is continuously detected in the mixture enrichment duration period; in the time period, if the super-knock signal is not detected, the ECU controls the oil injection quantity of the oil injector to be recovered to the oil supply quantity value before the super-knock abnormal combustion, and the gas mixture enrichment control measure is interrupted; at the same time, the ECU sends a super knock signal onto the CAN bus, at which point the super knock signal engsuphonck=0.
Further, in the above step S1, the TCU acquires the super knock signal through the CAN bus of the vehicle network, and when engsuphonck=1, acquires the engine intake air temperature value at the same time, and acquires the first increased rotation speed target value through engsuphonck_map (as shown in fig. 2).
Further, in the step S1, for the CVT transmission, the transmission controller TCU may directly control the speed ratio changing structure to execute; for DCT/AT gearboxes, if the increasing speed ratio is within the range of 0.8-1.2 of the decreasing 1/2 speed ratio, executing the down-shift and the up-shift; and if the clutch pressure is not satisfied, releasing the clutch pressure in gear, temporarily controlling the clutch pressure in a slip mode, controlling the clutch pressure to enable the engine to reach the target rotating speed, keeping the duration time to be 10-15 s (consistent with the engine enrichment time), simultaneously monitoring the clutch temperature of the gearbox in real time, and executing a downshift scheme when the clutch temperature exceeds a set value. Further, if the TCU acquires engsuphonck=0, the transmission controller TCU controls the transmission parameters to resume the speed ratio parameters before the super-knock abnormal combustion.
In the above step S2, the second set value is 2. The monitoring of the super-knock signal, i.e. the 2st super-knock signal mentioned in fig. 1, is continued on the basis of step S1, the ECU sends engsuphonck=2 onto the CAN bus. The engine ECU controls the VVT mechanism to reduce the phase overlapping angle of the intake and exhaust VVT, the valve lift is generally calculated to be 1mm, the VVT overlapping angle is 0, the valve overlapping angle can be negative under special working conditions (the overlapping angle is well defined in an engine rack), the period of time is kept for 15-20 s, and meanwhile, the super knocking signal is continuously detected; in the time period, if the super-knock signal is not detected, the ECU controls the VVT phaser to recover to the VVT parameter before super-knock abnormal combustion, and interrupts the valve overlap angle reducing control measure; while the ECU sends engsuphonck=1 onto the CAN bus.
Further, in the step S2, the TCU acquires engsuphonck through the CAN bus of the automobile network, and when engsuphonck=2, acquires the engine intake air temperature value at the same time, and acquires the increase target rotation speed value through engsuphonck_map (as shown in fig. 2), and the increase target rotation speed control method is consistent with the 1st super explosion gearbox control method. Further, if the TCU acquires engsuphonck=1, the transmission controller TCU controls the transmission parameters to resume to the last step ratio parameters.
In the step S3, the third setting value is 3. The monitoring of the super-knock signal, i.e. the 3st super-knock signal mentioned in fig. 1, continues on the basis of step S2, the ECU sends engsuphonck=3 onto the CAN bus. The engine ECU controls the supercharger waste gas valve, increases the gas discharge amount, reduces the maximum charge in the cylinder, can reduce the temperature in the cylinder, reduces the pre-ignition tendency, and keeps for 15-20 s. Load reduction is not achieved here primarily by retarding the ignition angle, which increases the super-knock frequency. In the time period, if the super-detonation signal is not detected, the ECU controls the booster bleed valve to restore to the parameter before super-detonation abnormal combustion, and interrupts the measure of reducing the charge quantity; while the ECU sends engsuphonck=2 onto the CAN bus.
Further, in the step S3, the TCU acquires engsubpkonck through the CAN bus of the automobile network, and when engsubpkonck=3, acquires an engine intake air temperature value at the same time, and acquires an increase target rotation speed value through engsubpkonck_map; it should be specifically noted that, here, increasing the target rotation speed considers that the engine power performance is attenuated to cause the problem of acceleration smoothness of the whole vehicle, and the increasing rotation speed is generally relatively more than 1st/2st super knock, so that the real vehicle is calibrated. The control method for increasing the target rotating speed is consistent with the control method for the 1st super explosion gearbox. Further, if the TCU acquires engsuphonck=2, the transmission controller TCU controls the transmission parameters to resume to the last step ratio parameters.
In the above step S4, the fourth set value is 4. The monitoring of the super-knock signal, i.e. the 4st super-knock signal mentioned in fig. 1, is continued on the basis of step S3, the ECU sends engsuphonck=4 onto the CAN bus. And the engine ECU controls the oil injector to adopt oil-cut control to the cylinder with more preignition. The super knock signal opening threshold of the fuel cut control is relatively high, is 20-30% higher than the enrichment, the VVT overlap angle shortening and the air intake limiting capacity, and is maintained for a period of 10-15 s. During this time period, if no super-knock signal is detected, the engine ECU controls the supercharger bleed valve to revert to the parameters before super-knock and interrupts the charge reduction control measure while the ECU sends engsuphonck=3 to the CAN bus.
Further, in the step S2, the TCU acquires engsubpkonck through the CAN bus of the automobile network, and when engsubpkonck=4, acquires an engine intake air temperature value at the same time, and acquires an increase target rotation speed value through engsubpkonck_map; it should be specifically noted that, here, increasing the target rotation speed considers the problem of acceleration smoothness of the whole vehicle caused by power performance attenuation of the engine, and the increasing rotation speed is generally relatively more than 1st/2st/3st super knocking, so that the real vehicle is calibrated. The control method for increasing the target rotating speed is consistent with the control method for the 1st super explosion gearbox. Further, if the TCU acquires engsuphonck=3, the transmission controller TCU controls the transmission parameters to resume to the last step ratio parameters.
In particular, in the case of the engine oil-break extreme, if the number of oil-break cylinders is large, the torque drops much, and the transmission torque appropriately turns off the clutch control, the level is higher than the rotational speed increasing level, and the rotational speed increasing measure is not executed, which is reasonable.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (8)
1. The control method of the super knocking power assembly of the supercharged gasoline engine is characterized by comprising the following steps:
s1, after the super knocking signal is detected to reach a first set value, implementing a mixed gas enrichment control measure, and simultaneously acquiring a first target rotating speed increasing value to enable the gearbox to reach the first target rotating speed;
s2, after the super knocking signal is detected to reach a second set value, implementing a valve overlap angle reducing control measure, reducing the valve phase overlap angle of an engine intake valve and an engine exhaust valve, and keeping for a period of time; simultaneously acquiring a second target rotating speed increasing value to enable the gearbox to reach the second target rotating speed;
s3, after the super knocking signal is detected to reach a third set value, implementing a measure for reducing the air inflow; simultaneously acquiring a third target rotating speed increasing value to enable the gearbox to reach the third target rotating speed;
s4, implementing fuel cut-off control measures after detecting that the super knocking signal reaches a fourth set value; simultaneously acquiring a fourth target rotating speed increasing value to enable the gearbox to reach the fourth target rotating speed;
in step S1, the first setting value is 1; after the ECU recognizes the first super-knock signal, the ECU transmits the super-knock signal to the CAN bus, wherein the super-knock signal EngSupKonck=1; meanwhile, the ECU carries out mixed gas enrichment control measures by increasing the oil injection time of the oil injector, the excess air coefficient is enriched from 1 to 0.75-0.8, the excess air coefficient is 0.75-0.8, the mixed gas enrichment lasts for about 10-15 s, and meanwhile, the super knocking signal is continuously detected in the mixed gas enrichment duration period; in the time period, if the super-knock signal is not detected, the ECU controls the oil injection quantity of the oil injector to be recovered to the oil supply quantity value before the super-knock abnormal combustion, and the gas mixture enrichment control measure is interrupted; at the same time, the ECU sends a super knock signal onto the CAN bus, at which point the super knock signal engsuphonck=0.
2. The method for controlling the super-knock power assembly of a supercharged gasoline engine according to claim 1, wherein in said step S1, after the implementation of the mixture enrichment control measure, the excess air ratio is 0.75 to 0.8.
3. The method for controlling the super-knock powertrain of a supercharged gasoline engine according to claim 1, wherein in said step S1, the duration of the implementation of the gas mixture enrichment control measure is 10 to 15S.
4. The control method of the super knock power unit of the supercharged gasoline engine according to any one of claims 1 to 3, wherein in the step S1, the duration of operation is 10 to 15S after the transmission reaches the first target rotation speed.
5. The method according to claim 4, wherein in step S1, the clutch temperature is monitored in real time during the continuous operation of the transmission at the first target rotational speed, and the downshift is performed when the clutch temperature exceeds the set value.
6. The control method of the super-knock power unit of a supercharged gasoline engine according to any one of claims 1 to 3, wherein in said step S2, the valve phase overlap angle of the engine intake valve and exhaust valve is reduced for 15 to 20 seconds.
7. A supercharged gasoline engine super-knock powertrain control method according to any one of claims 1 to 3, characterized in that in said step S3, a duration of the intake air amount reducing control measure is implemented for 10 to 15S.
8. A control method of a super knock powertrain for a supercharged gasoline engine according to any one of claims 1 to 3, characterized in that in said step S4, the duration of the fuel cut-off control measure is 10 to 15S.
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| CN202111411414.XA CN114033561B (en) | 2021-11-25 | 2021-11-25 | Control method of super knocking power assembly of supercharged gasoline engine |
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| CN202111411414.XA CN114033561B (en) | 2021-11-25 | 2021-11-25 | Control method of super knocking power assembly of supercharged gasoline engine |
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| CN114033561B true CN114033561B (en) | 2023-12-15 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640396A (en) * | 2016-12-16 | 2017-05-10 | 天津大学 | Super knock restraining method based on multi-parameter adjustment and control |
| CN111997767A (en) * | 2020-09-04 | 2020-11-27 | 东风汽车集团有限公司 | Method and device for controlling air inflow for inhibiting knocking under pre-ignition and high-intensity knocking |
| CN112177782A (en) * | 2020-09-30 | 2021-01-05 | 重庆长安汽车股份有限公司 | Super-knocking abnormal combustion processing control method for supercharged gasoline engine |
| CN113482789A (en) * | 2021-07-22 | 2021-10-08 | 东风汽车集团股份有限公司 | Engine super-detonation post-processing method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE519192C2 (en) * | 2000-05-17 | 2003-01-28 | Mecel Ab | Engine control method |
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- 2021-11-25 CN CN202111411414.XA patent/CN114033561B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640396A (en) * | 2016-12-16 | 2017-05-10 | 天津大学 | Super knock restraining method based on multi-parameter adjustment and control |
| CN111997767A (en) * | 2020-09-04 | 2020-11-27 | 东风汽车集团有限公司 | Method and device for controlling air inflow for inhibiting knocking under pre-ignition and high-intensity knocking |
| CN112177782A (en) * | 2020-09-30 | 2021-01-05 | 重庆长安汽车股份有限公司 | Super-knocking abnormal combustion processing control method for supercharged gasoline engine |
| CN113482789A (en) * | 2021-07-22 | 2021-10-08 | 东风汽车集团股份有限公司 | Engine super-detonation post-processing method and system |
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