CN113586271A - Transient combustion coarse sound control method and system for gasoline engine and storage medium - Google Patents
Transient combustion coarse sound control method and system for gasoline engine and storage medium Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Abstract
The invention provides a transient combustion rough noise control method, a transient combustion rough noise control system and a storage medium of a gasoline engine, wherein whether the transient combustion rough noise belongs to an acceleration process is judged through a manifold pressure increasing gradient or an accelerator pedal opening increasing gradient, whether combustion rough noise is unacceptable is judged through a pressure increasing rate calculated by each cylinder pressure sensor, and on the basis, the ignition angle of a cylinder with the combustion rough noise exceeding the standard is reduced and lasts for a certain time.
Description
Technical Field
The invention belongs to the field of combustion control of gasoline engines, and particularly relates to a control method for combustion roughness in an acceleration process of an engine.
Background
Many engines suffer from combustion harshness during acceleration, for example, fig. 1 is a pressure rise rate comparison graph of a certain 2.0 liter supercharged engine under the same working condition under different compression ratio conditions. It can be seen that after the compression ratio is reduced to adapt to the market of low-octane fuel, the pressure rise rate of the engine in the middle-high speed and high load region is found to be greatly increased (the ignition angle of the same working condition under two engine states is controlled at the knock boundary KBL), and the maximum value even exceeds the limit value which is accepted by the industry of the engines to be reached by 3.5 bar/CA. Although these conditions do not knock, the combustion noise is already so loud that combustion harshness can be generated on board the vehicle that can lead to customer complaints.
The related research shows that the maximum explosion pressure and the maximum pressure increase rate in the cylinder in the transient state are about 20 to 50 percent larger than those in the steady state at the same rotating speed and load. Meanwhile, the maximum burst pressure in the cylinder of the next cycle may be 2-3 times of the maximum burst pressure of the previous cycle at the time of the transient state. Therefore, under the acceleration condition of the whole vehicle, on one hand, a large pressure rise rate in the cylinder can generate large rough combustion noise and transmit the rough combustion noise to the cab, and on the other hand, severe cyclic variation can cause mechanical connecting devices with gaps such as a piston connecting rod mechanism, a transmission shaft and the like to generate mechanical impact noise and transmit the mechanical impact noise to the cab. These two noises are usually felt by the passengers in the cabin during the rapid acceleration of the driver, and are therefore referred to as vehicle acceleration harshness.
The whole vehicle carrying the low compression ratio version of the engine can generate obvious rough combustion sound under some special driving working conditions. In comparison, the same whole vehicle carrying the high compression ratio version of the engine does not generate obvious rough combustion sound under any driving working condition. One of the conventional ignition angle control technologies is that if knocking combustion occurs in the current combustion cycle of a certain cylinder, the ignition angle is retreated by a certain step length in the next cycle so as to reduce the knocking probability of the next cycle of the cylinder; and secondly, determining the dynamic change amplitude of the engine according to the fact that the threshold value of the rotating speed gradient or the load gradient exceeds a calibrated value, and then giving a certain step length of ignition angle to all the cylinders in the cycle in advance to prevent possible knocking in advance. However, for a whole vehicle loaded with the engine in the low compression ratio state, combustion harshness cannot be controlled in a knock diagnosis mode due to the fact that knocking combustion does not occur in certain rapid acceleration, the rotating speed gradient and the load gradient under the rapid acceleration working conditions are far smaller than the threshold value for triggering prevention of dynamic knocking in the current ECU, and if the dynamic knocking threshold value is reduced to reduce the combustion harshness of the whole vehicle under certain rapid acceleration working conditions, the dynamic performance and the economical efficiency under the conventional dynamic condition can be reduced. Current ways of controlling the firing angle based on knocking combustion therefore do not allow precise control of the acceleration harshness that may be generated by this type of low compression ratio engine.
Patent document CN107110039B discloses a method of operating an internal combustion engine in a skip fire manner using an operational firing fraction that is fuel efficient and has acceptable noise, vibration and harshness characteristics, the method comprising: generating an operational firing fraction that delivers a desired engine torque; generating a skip fire firing sequence for operating the internal combustion engine in a skip fire manner, the skip fire firing sequence being based on the operational firing fraction; a smoothing torque applied to the powertrain by the energy storage/release device is determined, wherein the smoothing torque is arranged to at least partially cancel torque variations produced by the skip fire firing sequence, thereby reducing noise, vibration, and harshness that would otherwise be produced by the skip fire firing sequence. However, this technique does not involve judging the acceptability of the combustion harshness sound by the in-cylinder pressure increase rate and performing a corresponding process to reduce the combustion harshness sound of the acceleration process.
Patent document CN107664082B proposes a single-cylinder independent control method for ignition angle of a multi-cylinder gasoline engine, which is to independently control the ignition angle by a single cylinder through the difference between the actual measurement of the combustion center of gravity and the optimal combustion center of gravity, so that the single-cylinder ignition angle is always at the knock critical KBL point in the non-knock region and the knock region. However, this technique does not involve discrimination and processing of combustion harshness during acceleration.
Disclosure of Invention
The invention provides a method, a system and a storage medium for controlling transient combustion roughness of a gasoline engine, and aims to solve the problem that significant acceleration roughness is generated under the condition that the combustion pressure rise rate of an engine is too high and knocking does not occur in the acceleration process of a whole vehicle, and improve the sound quality of the whole vehicle and the satisfaction degree of customers.
The technical scheme of the invention is as follows:
a method for controlling the combustion roughness of a gasoline engine comprises the following steps:
And 2, when the fact that the increase gradient of the intake pressure is larger than the calibration threshold value, or the increase gradient of the actually-measured opening degree of the accelerator pedal is larger than the calibration threshold value, or the increase gradient of the actually-measured rotating speed is larger than the calibration threshold value is detected, the engine is judged to be in the transient acceleration working condition, and the step 3 is executed.
And 4, when the duration time of the ignition angle value for reducing the pressure rise rate reaches T, the ignition angle compensation value for reducing the pressure rise rate is recovered to 0, and the transient combustion rough sound control process is finished.
Further, the present invention also provides a rough combustion sound control system for a gasoline engine, comprising:
the signal acquisition module is used for acquiring a real-time rotating speed signal and an air inlet pipe pressure signal of the engine;
the first judgment module is used for calculating a real-time load signal of the engine, judging whether the rotating speed of the engine is in a calibrated value range or not and judging whether the load signal of the engine is in the calibrated value range or not;
the second judgment module judges whether the engine is in a transient acceleration working condition or not according to whether the detected intake pressure increasing gradient is larger than a calibration threshold or whether the actually-measured accelerator pedal opening increasing gradient is larger than the calibration threshold or whether the actually-measured rotating speed increasing gradient is larger than the calibration threshold or not;
the first control module is used for controlling the ignition angle of the cylinder in the next cycle to reduce the ignition angle on the basis of the conventional ignition control output when the maximum in-cylinder pressure increase rate of the current cycle of the cylinder exceeds a calibration threshold value according to the signals of the pressure sensors of the cylinders, and the reduced ignition angle value is determined by looking up a table according to the engine speed and the engine load at the moment; meanwhile, controlling the ignition angle compensation value which is about to be output in the next cycle of the cylinder and reduces the pressure increase rate to continue for a calibration time T;
and the third judging module is used for judging whether the duration time of the ignition angle value for reducing the pressure rise rate reaches T or not, judging whether the ignition angle compensation value for reducing the pressure rise rate is recovered to 0 or not, and if so, ending the transient combustion rough voice control process.
The invention also protects a readable storage medium on which a computer program is stored which, when executed by a processor, carries out the steps of the above-described gasoline engine combustion harshness control method.
By adopting the technical scheme, the invention has the advantages that:
the invention provides a technology, which judges whether the acceleration process belongs to through a manifold pressure increasing gradient or an accelerator pedal opening increasing gradient, judges whether combustion rough noise is unacceptable through a pressure increasing rate calculated by each cylinder pressure sensor, and reduces a cylinder ignition angle with combustion rough noise exceeding the standard on the basis and continues for a certain time to improve the customer satisfaction. The method for accurately controlling the combustion rough noise through the cylinder pressure sensor information and the load information can accurately reduce the combustion rough noise in the transient process while giving full play to the performance of the engine to the maximum degree, and reduce the fuel consumption of the whole vehicle to the maximum degree, thereby improving the customer satisfaction.
Drawings
FIG. 1 is a comparison of the pressure rise rate of an engine at different compression ratios;
FIG. 2 is a control flow chart of the transient combustion harshness control method of the gasoline engine.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
For an engine, the method for realizing the coarse sound control of the combustion of the gasoline engine relates to the following hardware configuration: the system comprises a multi-cylinder gasoline engine, an intake manifold, an exhaust manifold, an air filter, a throttle valve, an oil injection system and an ignition system which are connected with the multi-cylinder gasoline engine, a rotating speed sensor, an accelerator pedal position sensor, a knock sensor, a plurality of cylinder pressure sensors, an intake pipe pressure sensor, an Electronic Control Unit (ECU) and the like which are arranged on the internal combustion engine.
The electronic control unit is respectively connected with the multi-cylinder gasoline engine, the rotating speed sensor, the accelerator pedal position sensor, the knock sensor, the intake manifold pressure sensor, the throttle valve, the oil injection system, the ignition system and the plurality of cylinder pressure sensors, and the number of the cylinder pressure sensors is equal to that of the air cylinders.
The specific implementation of the invention needs to complete conventional ignition angle calibration and knock control calibration so that the engine ECU can output the ignition angle of each cylinder in the current cycle according to the conventional ignition angle control.
Referring to fig. 2, the transient combustion rough sound control process of the gasoline engine is as follows:
In the embodiment, the electronic control unit ECU acquires a real-time rotating speed signal and an intake pipe pressure signal of the engine, and calculates a real-time load signal of the engine according to an intake manifold pressure signal. When the engine speed is greater than the calibrated minimum value and less than the calibrated maximum value, and simultaneously the engine load signal is greater than the calibrated minimum value and less than the calibrated maximum value, the ECU judges that the real-time working condition of the engine is in a region where the combustion roughness is possibly overlarge, namely, the engine running region where the combustion roughness sound control method can play a role, and at the moment, the system control function (namely, the function of reducing the transient combustion roughness) formed by the method is started.
And 2, when the fact that the increase gradient of the intake pressure is larger than the calibration threshold value, or the increase gradient of the actually-measured opening degree of the accelerator pedal is larger than the calibration threshold value, or the increase gradient of the actually-measured rotating speed is larger than the calibration threshold value is detected, the engine is judged to be in the transient acceleration working condition, and the step 3 is executed.
In the embodiment, the function of reducing transient combustion harsh noise is started, the ECU detects that the rising gradient of the intake pressure is greater than the calibration threshold, or the opening increasing gradient of the actually-measured accelerator pedal is greater than the calibration threshold, or the increasing gradient of the actually-measured rotating speed is greater than the calibration threshold, the engine is judged to be in the transient acceleration working condition, and the judgment of whether the transient combustion harsh noise exceeds the standard or not in the next step can be carried out.
And 3, when detecting that the maximum in-cylinder pressure rise rate Rmax [ i ] of the current cycle of a certain cylinder exceeds a calibration threshold value according to signals of the pressure sensors of the cylinders, wherein i represents the cylinder number, controlling the ignition angle of the cylinder in the next cycle to reduce a certain ignition angle on the basis of the conventional ignition control output, and determining the reduced ignition angle value according to the engine speed and the engine load lookup table at the moment. Meanwhile, the ignition angle compensation value of the reduced pressure increase rate to be output in the next cycle of the cylinder is controlled for the calibration time T, and then step 4 is executed.
In the embodiment, when the ECU detects that the maximum in-cylinder pressure increase rate of a certain cylinder or multiple cylinders in the current cycle exceeds a calibration threshold value according to signals of pressure sensors of the cylinders, the ignition angle of the certain cylinder or multiple cylinders in the next cycle is reduced by a certain ignition angle on the basis of the output of conventional ignition control, the value of the ignition angle is determined by a table according to the engine speed and the engine load at the moment, the table is determined by the table on the whole vehicle, the maximum in-cylinder pressure increase rate of the cylinder or multiple cylinders in the next cycle after the ignition angle is reduced is ensured to be smaller than the threshold value, and customer complaints caused by combustion roughness can be eliminated. Meanwhile, the ignition angle compensation value which is about to be output in the next cycle of a certain cylinder or multiple cylinders with the pressure rise rate exceeding the threshold value and reduces the pressure rise rate continues for a certain calibration time value T, and then the next step is carried out.
And 4, when the duration time of the ignition angle value for reducing the pressure rise rate reaches T, the ignition angle compensation value for reducing the pressure rise rate is recovered to 0, and the transient combustion rough sound control process is finished.
Specifically, when the duration time T of the ignition angle compensation value output by a certain cylinder or multiple cylinders with the pressure rise rate exceeding the threshold value and reducing the pressure rise rate reaches the calibration time value T, the ignition angle value of the ignition angle value to be output by the cylinder or multiple cylinders in the next cycle is recovered to 0 degree of crank angle, and the transient combustion coarse sound control process is finished.
In a further embodiment, step 3 further comprises looking up the table for firing angles for the next cycle for the remaining cylinders for which the pressure rise rate in the other cylinders does not exceed the threshold value according to a conventional firing angle MAP.
In order to accurately execute the control method, firstly, additional calibration needs to be carried out on a certain multi-cylinder gasoline engine to obtain the following parameters:
1. and carrying out knock control based on a knock sensor signal according to the existing calibration method.
2. The ignition angle MAP (ignition angle with consistent cylinder output value) of the multi-cylinder engine is calibrated according to the existing calibration method.
3. And (3) determining the working condition area of the engine which is easy to generate rough combustion sound, namely the minimum/maximum value of the rotating speed and the minimum/maximum value of the load in the step 1 through the real-vehicle calibration on the whole vehicle.
4. And (3) determining an intake pressure increase gradient threshold, an accelerator pedal opening increase gradient threshold and a rotating speed increase gradient threshold which are used for judging whether the engine belongs to the transient acceleration process through real vehicle calibration on the whole vehicle, and setting corresponding thresholds in the step (2).
5. And (3) determining a cylinder pressure increase rate threshold value corresponding to the acceleration rough sound causing the customer complaint by the calibration of the whole vehicle, and setting the cylinder pressure increase rate threshold value in the step (3).
6. Through the calibration of a finished automobile, when the acceleration rough sound complained by a customer in the acceleration process is determined, the ignition angle (which is obtained by looking up a table according to the rotating speed and the load) required for reducing the in-cylinder pressure increase rate can be reduced, and the angle can eliminate the complaint of the acceleration rough sound of the customer in the process; the required duration T of the ignition angle for reducing the in-cylinder pressure increase rate is synchronously calibrated.
In a further embodiment, there is also provided a gasoline engine combustion harsh acoustic control system comprising:
the signal acquisition module is used for acquiring a real-time rotating speed signal and an air inlet pipe pressure signal of the engine;
the first judgment module is used for calculating a real-time load signal of the engine, judging whether the rotating speed of the engine is in a calibrated value range or not and judging whether the load signal of the engine is in the calibrated value range or not;
the second judgment module judges whether the engine is in a transient acceleration working condition or not according to whether the detected intake pressure increasing gradient is larger than a calibration threshold or whether the actually-measured accelerator pedal opening increasing gradient is larger than the calibration threshold or whether the actually-measured rotating speed increasing gradient is larger than the calibration threshold or not;
the first control module is used for controlling the ignition angle of the cylinder in the next cycle to reduce the ignition angle on the basis of the conventional ignition control output when the maximum in-cylinder pressure increase rate of the current cycle of the cylinder exceeds a calibration threshold value according to the signals of the pressure sensors of the cylinders, and the reduced ignition angle value is determined by looking up a table according to the engine speed and the engine load at the moment; meanwhile, the ignition angle compensation value which is about to output in the next cycle of the cylinder and reduces the pressure rise rate is controlled to continue for the calibration time T.
And the second control module is used for controlling the ignition angle of the next cycle of the rest cylinders, of which the in-cylinder pressure increase rate does not exceed the threshold value, to be output according to a conventional ignition angle MAP table look-up.
And the third judging module is used for judging whether the duration time of the ignition angle value for reducing the pressure rise rate reaches T or not, judging whether the ignition angle compensation value for reducing the pressure rise rate is recovered to 0 or not, and if so, ending the transient combustion rough voice control process.
A further embodiment is a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the gasoline engine combustion harshness control method described above.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
Claims (6)
1. A method for controlling the combustion roughness of a gasoline engine is characterized by comprising the following steps:
step 1, acquiring a real-time rotating speed signal and an intake air pipe pressure signal of an engine, calculating a real-time load of the engine, and executing step 2 when the rotating speed of the engine is judged to be within a calibrated value range and the load of the engine is also within the calibrated value range;
step 2, when detecting that the increase gradient of the intake pressure is larger than a calibration threshold value, or the increase gradient of the opening of the actually-measured accelerator pedal is larger than the calibration threshold value, or the increase gradient of the actually-measured rotating speed is larger than the calibration threshold value, judging that the engine is in a transient acceleration working condition, and executing step 3;
step 3, when detecting that the maximum in-cylinder pressure increase rate of a current cycle of a certain cylinder exceeds a calibration threshold value according to signals of pressure sensors of the cylinders, controlling the ignition angle of the cylinder in the next cycle to reduce the ignition angle on the basis of conventional ignition control output, wherein the reduced ignition angle value is determined by looking up a table according to the engine speed and the engine load at the moment; meanwhile, controlling the ignition angle compensation value which is about to be output in the next cycle of the cylinder and reduces the pressure rise rate to continue for a calibration time T, and then executing the step 4;
and 4, when the duration time of the ignition angle value for reducing the pressure rise rate reaches T, the ignition angle compensation value for reducing the pressure rise rate is recovered to 0, and the transient combustion rough sound control process is finished.
2. The gasoline engine combustion harshness control method of claim 1, wherein step 3 further comprises outputting from a conventional ignition angle MAP look-up table ignition angles for the next cycle of remaining cylinders for which the in-cylinder pressure rise rate does not exceed the threshold.
3. The gasoline engine combustion harshness control method of claim 1, wherein the table of step 3 engine speed and engine load look-up tables is determined by calibration on the entire vehicle.
4. A coarse-grained voice control system for gasoline engine combustion, comprising:
the signal acquisition module is used for acquiring a real-time rotating speed signal and an air inlet pipe pressure signal of the engine;
the first judgment module is used for calculating the real-time load of the engine, judging whether the rotating speed of the engine is in a calibrated value range or not and judging whether the load of the engine is in the calibrated value range or not;
the second judgment module judges whether the engine is in a transient acceleration working condition or not according to whether the detected intake pressure increasing gradient is larger than a calibration threshold or whether the actually-measured accelerator pedal opening increasing gradient is larger than the calibration threshold or whether the actually-measured rotating speed increasing gradient is larger than the calibration threshold or not;
the first control module is used for controlling the ignition angle of the cylinder in the next cycle to reduce the ignition angle on the basis of the conventional ignition control output when the maximum in-cylinder pressure increase rate of the current cycle of the cylinder exceeds a calibration threshold value according to the signals of the pressure sensors of the cylinders, and the reduced ignition angle value is determined by looking up a table according to the engine speed and the engine load at the moment; meanwhile, controlling the ignition angle compensation value which is about to be output in the next cycle of the cylinder and reduces the pressure increase rate to continue for a calibration time T;
and the third judging module is used for judging whether the duration time of the ignition angle value for reducing the pressure rise rate reaches T or not, judging whether the ignition angle compensation value for reducing the pressure rise rate is recovered to 0 or not, and if so, ending the transient combustion rough voice control process.
5. The gasoline engine combustion harsh sound control system of claim 4 further comprising a second control module for controlling the firing angle for the next cycle of the remaining cylinders for which the in-cylinder pressure rise rate does not exceed the threshold to be output according to a conventional firing angle MAP lookup table.
6. A readable storage medium on which a computer program is stored, characterized in that the computer program, when being executed by a processor, realizes the steps of the gasoline engine combustion harshness control method of any one of claims 1 to 3.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335842A (en) * | 2023-03-27 | 2023-06-27 | 重庆长安汽车股份有限公司 | Engine combustion rough sound control method, system and storage medium |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918245A (en) * | 1982-07-22 | 1984-01-30 | Toyota Motor Corp | Fuel injection timing controlling apparatus for diesel engine |
| JPH01182555A (en) * | 1988-01-11 | 1989-07-20 | Fujitsu Ten Ltd | Method for detecting acceleration or deceleration of internal combustion engine |
| JPH01315617A (en) * | 1987-12-29 | 1989-12-20 | Honda Motor Co Ltd | Supercharging pressure control in internal combustion engine |
| JPH06207543A (en) * | 1993-01-11 | 1994-07-26 | Honda Motor Co Ltd | Control method for internal combustion engine |
| JP2003013789A (en) * | 2001-07-02 | 2003-01-15 | Toyota Motor Corp | Air quantity detection method of engine |
| CN101213368A (en) * | 2005-07-01 | 2008-07-02 | 百佳车辆有限公司 | Method and system for controlling engine noise |
| CN103867348A (en) * | 2014-03-27 | 2014-06-18 | 天津大学 | System device for controlling instantaneous condition burning noise of common rail engine |
| EP3002438A1 (en) * | 2014-09-30 | 2016-04-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Engine controller |
| CN109505706A (en) * | 2017-09-14 | 2019-03-22 | 郑州宇通客车股份有限公司 | Reduce the method and device of engine combustion noise |
| CN112879173A (en) * | 2021-01-08 | 2021-06-01 | 广西玉柴机器股份有限公司 | Method for controlling throttle filtering and related device |
| CN112943430A (en) * | 2021-03-30 | 2021-06-11 | 东风汽车集团股份有限公司 | Control method and system for reducing solid particle emission and storage medium |
| CN113062809A (en) * | 2021-05-07 | 2021-07-02 | 潍柴动力股份有限公司 | Control method and device of electric control air bleed valve |
-
2021
- 2021-08-30 CN CN202111000916.3A patent/CN113586271A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918245A (en) * | 1982-07-22 | 1984-01-30 | Toyota Motor Corp | Fuel injection timing controlling apparatus for diesel engine |
| JPH01315617A (en) * | 1987-12-29 | 1989-12-20 | Honda Motor Co Ltd | Supercharging pressure control in internal combustion engine |
| JPH01182555A (en) * | 1988-01-11 | 1989-07-20 | Fujitsu Ten Ltd | Method for detecting acceleration or deceleration of internal combustion engine |
| JPH06207543A (en) * | 1993-01-11 | 1994-07-26 | Honda Motor Co Ltd | Control method for internal combustion engine |
| JP2003013789A (en) * | 2001-07-02 | 2003-01-15 | Toyota Motor Corp | Air quantity detection method of engine |
| CN101213368A (en) * | 2005-07-01 | 2008-07-02 | 百佳车辆有限公司 | Method and system for controlling engine noise |
| CN103867348A (en) * | 2014-03-27 | 2014-06-18 | 天津大学 | System device for controlling instantaneous condition burning noise of common rail engine |
| EP3002438A1 (en) * | 2014-09-30 | 2016-04-06 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Engine controller |
| CN109505706A (en) * | 2017-09-14 | 2019-03-22 | 郑州宇通客车股份有限公司 | Reduce the method and device of engine combustion noise |
| CN112879173A (en) * | 2021-01-08 | 2021-06-01 | 广西玉柴机器股份有限公司 | Method for controlling throttle filtering and related device |
| CN112943430A (en) * | 2021-03-30 | 2021-06-11 | 东风汽车集团股份有限公司 | Control method and system for reducing solid particle emission and storage medium |
| CN113062809A (en) * | 2021-05-07 | 2021-07-02 | 潍柴动力股份有限公司 | Control method and device of electric control air bleed valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335842A (en) * | 2023-03-27 | 2023-06-27 | 重庆长安汽车股份有限公司 | Engine combustion rough sound control method, system and storage medium |
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