CN115163376B - Engine ignition advance angle control method and device, engine management system and automobile - Google Patents
Engine ignition advance angle control method and device, engine management system and automobile Download PDFInfo
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- CN115163376B CN115163376B CN202210163816.0A CN202210163816A CN115163376B CN 115163376 B CN115163376 B CN 115163376B CN 202210163816 A CN202210163816 A CN 202210163816A CN 115163376 B CN115163376 B CN 115163376B
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- engine
- advance angle
- humidity information
- ignition advance
- humidity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention provides a control method of an engine ignition advance angle, which comprises the following steps: acquiring the starting completion time of an engine, a three-way catalyst ignition zone bit, humidity information of the current environment of a vehicle and a humidity information zone bit; judging whether to activate a humidity correction ignition advance angle control function based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit; if the humidity correction ignition advance angle control function is determined to be activated, determining the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter; and correcting the ignition advance angle and the second engine state parameter based on the humidity information, and performing engine control.
Description
Technical Field
The invention is used in the field of vehicle engine management systems, and particularly relates to an engine ignition advance angle control method and device, an engine management system and an automobile.
Background
At present, engine ignition advance angle control is performed based on boundaries such as engine coolant temperature, intake manifold temperature, engine load, engine speed and the like, so that the engine ignition advance angle works at a critical point of a knocking boundary. When the vehicle calibration engineer calibrates the area with higher humidity, the ignition advance angle of the engine is calibrated to be advanced, when the area with lower humidity is verified, the knocking tendency is increased, and the ignition advance angle of the engine is retarded, so that the dynamic performance of the area with higher humidity is influenced, and the vehicle calibration engineer has the ignition advance angle control requirements under different humidity environments. For driving scenes in different humidity environments, a vehicle calibration engineer expects the vehicle to recognize the humidity information of the current environment, so that the ignition advance angle of the engine is controlled, the power performance of the vehicle is improved, and the aim that the power performance of the vehicle is optimal under different humidity environments is fulfilled.
Disclosure of Invention
The invention aims to provide an engine ignition advance angle control method, an engine ignition advance angle control device, an engine management system and an automobile, wherein the automobile runs in different humidity environments, and the engine management system controller receives humidity information of the current environment of the automobile reported by a current weather platform through the automobile controller and controls the humidity information and engine state parameters to control the engine ignition advance angle, so that the automobile does not continuously knock in the different humidity environments, and the automobile can play the best power performance.
The invention adopts the following technical scheme:
the invention provides a control method of an engine ignition advance angle, which comprises the following steps:
acquiring the starting completion time of an engine, a three-way catalyst ignition zone bit, humidity information of the current environment of a vehicle and a humidity information zone bit;
judging whether to activate a humidity correction ignition advance angle control function based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit;
if the humidity correction ignition advance angle control function is determined to be activated, determining the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter;
and correcting the ignition advance angle and the second engine state parameter based on the humidity information, and performing engine control.
Preferably, the method further comprises:
when the time length for activating the humidity correction ignition advance angle control function does not exceed the first preset time length, if the newly acquired humidity information flag bit is invalid, the newly acquired humidity information flag bit is ignored;
when the time length for activating the humidity correction ignition advance angle control function exceeds a first preset time length, if the newly acquired humidity information flag bit is invalid, responding to the recently acquired humidity information flag bit, and exiting the humidity correction ignition advance angle control function;
and when the time length for activating the humidity correction ignition advance angle control function exceeds the first preset time length, if the newly acquired humidity information flag bit is valid, responding to the recently acquired humidity information flag bit, and continuing to activate the humidity correction ignition advance angle control function.
Preferably, the step of determining whether to activate the humidity correction spark advance angle control function based on the engine start completion time, the humidity information flag, and the three-way catalyst light-off flag includes:
if the starting completion time of the engine exceeds the second preset time, the three-way catalyst ignition flag bit is not set and the humidity information flag bit is valid, activating a humidity correction ignition advance angle control function; otherwise, the humidity correction ignition advance angle control function is not activated.
Preferably, the first engine state parameter includes: the step of determining the humidity information based on the humidity information and the first engine state parameter to correct the spark advance angle includes:
checking values from a preset first three-dimensional table according to absolute values of engine rotation speed and humidity information to obtain an ignition advance angle correction value A;
checking values from a preset second three-dimensional table according to the engine speed and the engine load to obtain an ignition advance angle correction coefficient B;
and multiplying the ignition advance angle correction value A by the ignition advance angle correction coefficient B to obtain the humidity information corrected ignition advance angle.
Preferably, the second engine state parameter includes: the engine water temperature and the engine intake air temperature, the ignition advance angle is corrected based on the humidity information, and the engine control step comprises the following steps:
performing ignition advance angle correction based on the water temperature of the engine and the air inlet temperature of the engine to obtain a corrected ignition advance angle;
and taking the sum of the corrected ignition advance angle and the humidity information corrected ignition advance angle as the ignition advance angle of final output, and controlling the engine to output according to the ignition advance angle.
The invention also provides an engine ignition advance angle control device, which comprises:
the acquisition module is used for acquiring the starting completion time of the engine, the starting and burning zone bit of the three-way catalyst, the humidity information of the current environment of the vehicle and the humidity information zone bit;
the judging module is used for judging whether to activate the humidity correction ignition advance angle control function or not based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit;
the determining module is used for determining the humidity information to correct the ignition advance angle based on the humidity information and the first engine state parameter if the humidity correction ignition advance angle control function is determined to be activated;
and the control module is used for correcting the ignition advance angle and the second engine state parameter based on the humidity information and performing engine control.
The invention also provides an engine management system, comprising:
the vehicle-to-vehicle controller acquires humidity information of the current environment of the vehicle from the cloud meteorological platform through the remote information processor;
generating a humidity information flag bit based on the humidity information, and then sending the humidity information and the humidity information flag bit to a CAN bus;
the engine management controller acquires the humidity information and the humidity information flag bit from the CAN bus, and then judges whether to activate a humidity correction ignition advance angle control function based on the humidity information, the humidity information flag bit, the engine starting completion time stored by the engine management controller and the three-way catalyst ignition flag bit;
if the humidity correction ignition advance angle control function is determined to be activated, the engine management controller determines the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter;
and the engine management controller corrects the ignition advance angle and the second engine state parameter based on the humidity information to perform engine control.
The invention also provides an automobile comprising the engine management system.
The beneficial effects of the invention are as follows:
the vehicle runs in different humidity environments, the engine management system controller receives humidity information of the current environment of the vehicle reported by the current weather platform through the vehicle-to-machine controller, and controls the humidity information and engine state parameters to control the ignition advance angle of the engine, so that the vehicle does not continuously knock in the different humidity environments, and the vehicle can exert the best power performance.
Drawings
FIG. 1 is a flowchart of an engine spark advance control method in the present embodiment;
FIG. 2 is a graph showing the variation of vehicle speed 0-100KM/h under the control of ignition advance angle by designed humidity activating information;
FIG. 3 is a graph of vehicle speed variation from 0KM/h to 100KM/h with the designed non-activated humidity information controlling spark advance.
Detailed Description
Referring to fig. 1, the present invention provides a method for controlling an engine ignition advance angle based on humidity information, the method comprising:
step S1, acquiring the starting completion time of an engine, the light-off zone bit of a three-way catalyst, the humidity information of the current environment of the vehicle and the humidity information zone bit.
Wherein the three-way catalyst light-off flag bit and the engine start completion time are stored in the engine management system controller, the engine start completion time being the duration after the engine start is successful.
The vehicle-mounted controller acquires the humidity information of the current environment of the vehicle from the cloud meteorological information platform through a mobile network channel provided by a remote information processor, and sends the humidity information received in real time and a generated humidity information mark to the CAN bus after diagnosing the humidity information; the engine management system controller receives these information (i.e., the humidity information and the humidity information flag) from the CAN bus.
And S2, judging whether to activate the humidity correction ignition advance angle control function or not based on the engine starting completion time, the humidity information flag bit and the three-way catalyst ignition flag bit.
The engine management system controller receives the signals and judges whether the current driving working condition activates the humidity correction ignition advance angle control function according to the running state of the engine management system controller. Meanwhile, the engine management system controller monitors the variation amplitude of the humidity information, and if the variation amplitude is too large, the engine management system controller can influence the control of the ignition advance angle, so that the power output is possibly unsmooth, and the drivability is possibly influenced. To avoid this problem, humidity information filtering logic is designed. When the vehicle runs in a scene with a continuous tunnel group or a bad mobile network, the vehicle controller sends out the humidity information flag bit to change reciprocally between invalid and valid. In this particular scenario, the engine management system controller also switches the control state of the humidity correction spark advance back and forth, affecting drivability. To avoid this problem, delay processing logic for the wetness information flag is designed. Meanwhile, in order not to influence the control of other functions by the engine management system controller, in the engine ignition stage, in order to enable the three-way catalyst to quickly heat up, the humidity correction ignition advance angle control function is not activated.
In summary, step S2 specifically includes: if the starting completion time of the engine exceeds the second preset time, the three-way catalyst ignition flag bit is not set and the humidity information flag bit is valid, activating a humidity correction ignition advance angle control function; otherwise, the humidity correction ignition advance angle control function is not activated.
And step S3, if the humidity correction ignition advance angle control function is determined to be activated, the humidity information correction ignition advance angle is determined based on the humidity information and the first engine state parameter.
The first engine state parameters include: the engine speed and engine load, step S3 is specifically: checking values from a preset first three-dimensional table according to absolute values of engine rotation speed and humidity information to obtain an ignition advance angle correction value A; checking values from a preset second three-dimensional table according to the engine speed and the engine load to obtain an ignition advance angle correction coefficient B; and multiplying the ignition advance angle correction value A by the ignition advance angle correction coefficient B to obtain the humidity information corrected ignition advance angle.
And S4, correcting the ignition advance angle and the second engine state parameter based on the humidity information, and performing engine control.
The second engine state parameters include: the engine water temperature and the engine air inlet temperature, step S4 specifically comprises: performing ignition advance angle correction based on the water temperature of the engine and the air inlet temperature of the engine to obtain a corrected ignition advance angle; and taking the sum of the corrected ignition advance angle and the humidity information corrected ignition advance angle as the ignition advance angle of final output, and controlling the engine to output according to the ignition advance angle.
In this embodiment, the method further includes: the method further comprises the steps of:
when the time length for activating the humidity correction ignition advance angle control function does not exceed the first preset time length, if the newly acquired humidity information flag bit is invalid, the newly acquired humidity information flag bit is ignored;
when the time length for activating the humidity correction ignition advance angle control function exceeds a first preset time length, if the newly acquired humidity information flag bit is invalid, responding to the recently acquired humidity information flag bit, and exiting the humidity correction ignition advance angle control function;
and when the time length for activating the humidity correction ignition advance angle control function exceeds the first preset time length, if the newly acquired humidity information flag bit is valid, responding to the recently acquired humidity information flag bit, and continuing to activate the humidity correction ignition advance angle control function.
As shown in fig. 2 and 3, the performance of the vehicle accelerating by hundred kilometers under the same condition when the humidity correction ignition advance angle control function is activated and when the humidity correction ignition advance angle control function is not activated is shown, it is obvious that the function is activated, the vehicle accelerating time by hundred kilometers is reduced by about 0.55 seconds, the power performance is obviously improved, and no continuous knocking occurs.
The invention also provides an engine ignition advance angle control device, which comprises:
the acquisition module is used for acquiring the starting completion time of the engine, the starting and burning zone bit of the three-way catalyst, the humidity information of the current environment of the vehicle and the humidity information zone bit;
the judging module is used for judging whether to activate the humidity correction ignition advance angle control function or not based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit;
the determining module is used for determining the humidity information to correct the ignition advance angle based on the humidity information and the first engine state parameter if the humidity correction ignition advance angle control function is determined to be activated;
and the control module is used for correcting the ignition advance angle and the second engine state parameter based on the humidity information and performing engine control.
The invention also provides an engine management system, comprising:
the vehicle-to-vehicle controller acquires humidity information of the current environment of the vehicle from the cloud meteorological platform through the remote information processor;
generating a humidity information flag bit based on the humidity information, and then sending the humidity information and the humidity information flag bit to a CAN bus;
the engine management controller acquires the humidity information and the humidity information flag bit from the CAN bus, and then judges whether to activate a humidity correction ignition advance angle control function based on the humidity information, the humidity information flag bit, the engine starting completion time stored by the engine management controller and the three-way catalyst ignition flag bit;
if the humidity correction ignition advance angle control function is determined to be activated, the engine management controller determines the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter;
and the engine management controller corrects the ignition advance angle and the second engine state parameter based on the humidity information to perform engine control.
The invention also provides an automobile comprising the engine management system.
While the invention has been described in detail in connection with only a limited number of embodiments, it should be apparent that the invention is not limited to the precise embodiments set forth herein, but is well suited to the particular use contemplated. Further modifications, additions and substitutions will readily occur to those skilled in the art, and the invention is therefore not to be considered limited to the foregoing description without departing from the general concept as defined in the accompanying claims and the equivalents thereof.
Claims (8)
1. An engine ignition advance angle control method, characterized by comprising:
acquiring the starting completion time of an engine, a three-way catalyst ignition zone bit, humidity information of the current environment of a vehicle and a humidity information zone bit;
judging whether to activate a humidity correction ignition advance angle control function based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit;
if the humidity correction ignition advance angle control function is determined to be activated, determining the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter;
and correcting the ignition advance angle and the second engine state parameter based on the humidity information, and performing engine control.
2. The method according to claim 1, wherein the method further comprises:
when the time length for activating the humidity correction ignition advance angle control function does not exceed the first preset time length, if the newly acquired humidity information flag bit is invalid, the newly acquired humidity information flag bit is ignored;
when the time length for activating the humidity correction ignition advance angle control function exceeds a first preset time length, if the newly acquired humidity information flag bit is invalid, responding to the recently acquired humidity information flag bit, and exiting the humidity correction ignition advance angle control function;
and when the time length for activating the humidity correction ignition advance angle control function exceeds the first preset time length, if the newly acquired humidity information flag bit is valid, responding to the recently acquired humidity information flag bit, and continuing to activate the humidity correction ignition advance angle control function.
3. The method of claim 1, wherein the step of determining whether to activate the humidity corrected spark advance control function based on the engine start completion time, the humidity information flag, and the three-way catalyst light-off flag comprises:
if the starting completion time of the engine exceeds the second preset time, the three-way catalyst ignition flag bit is not set and the humidity information flag bit is valid, activating a humidity correction ignition advance angle control function; otherwise, the humidity correction ignition advance angle control function is not activated.
4. The method of claim 1, wherein the first engine state parameter comprises: the step of determining the humidity information based on the humidity information and the first engine state parameter to correct the spark advance angle includes:
checking values from a preset first three-dimensional table according to absolute values of engine rotation speed and humidity information to obtain an ignition advance angle correction value A;
checking values from a preset second three-dimensional table according to the engine speed and the engine load to obtain an ignition advance angle correction coefficient B;
and multiplying the ignition advance angle correction value A by the ignition advance angle correction coefficient B to obtain the humidity information corrected ignition advance angle.
5. The method of claim 1 or 4, wherein the second engine state parameter comprises: the engine water temperature and the engine intake air temperature, the ignition advance angle is corrected based on the humidity information, and the engine control step comprises the following steps:
performing ignition advance angle correction based on the water temperature of the engine and the air inlet temperature of the engine to obtain a corrected ignition advance angle;
and taking the sum of the corrected ignition advance angle and the humidity information corrected ignition advance angle as the ignition advance angle of final output, and controlling the engine to output according to the ignition advance angle.
6. An engine ignition advance angle control apparatus, characterized by comprising:
the acquisition module is used for acquiring the starting completion time of the engine, the starting and burning zone bit of the three-way catalyst, the humidity information of the current environment of the vehicle and the humidity information zone bit;
the judging module is used for judging whether to activate the humidity correction ignition advance angle control function or not based on the starting completion time of the engine, the humidity information flag bit and the three-way catalyst ignition flag bit;
the determining module is used for determining the humidity information to correct the ignition advance angle based on the humidity information and the first engine state parameter if the humidity correction ignition advance angle control function is determined to be activated;
and the control module is used for correcting the ignition advance angle and the second engine state parameter based on the humidity information and performing engine control.
7. An engine management system, comprising:
the vehicle-to-vehicle controller acquires humidity information of the current environment of the vehicle from the cloud meteorological platform through the remote information processor;
generating a humidity information flag bit based on the humidity information, and then sending the humidity information and the humidity information flag bit to a CAN bus;
the engine management controller acquires the humidity information and the humidity information flag bit from the CAN bus, and then judges whether to activate a humidity correction ignition advance angle control function based on the humidity information, the humidity information flag bit, the engine starting completion time stored by the engine management controller and the three-way catalyst ignition flag bit;
if the humidity correction ignition advance angle control function is determined to be activated, the engine management controller determines the humidity information correction ignition advance angle based on the humidity information and the first engine state parameter;
and the engine management controller corrects the ignition advance angle and the second engine state parameter based on the humidity information to perform engine control.
8. An automobile comprising the engine management system of claim 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210163816.0A CN115163376B (en) | 2022-02-22 | 2022-02-22 | Engine ignition advance angle control method and device, engine management system and automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210163816.0A CN115163376B (en) | 2022-02-22 | 2022-02-22 | Engine ignition advance angle control method and device, engine management system and automobile |
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| CN115163376A CN115163376A (en) | 2022-10-11 |
| CN115163376B true CN115163376B (en) | 2023-07-25 |
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| JPS643267A (en) * | 1987-06-26 | 1989-01-09 | Nissan Motor | Control device for ignition timing of internal combustion engine |
| JPH0968146A (en) * | 1995-09-01 | 1997-03-11 | Mitsubishi Electric Corp | Internal combustion engine control device |
| JP2010190134A (en) * | 2009-02-19 | 2010-09-02 | Suzuki Motor Corp | Ignition timing control device for internal combustion engine |
| CN103114951A (en) * | 2012-09-28 | 2013-05-22 | 浙江吉利罗佑发动机有限公司 | Controlling method of gasoline direct injection engine optimal ignition angular advance |
| CN110388296A (en) * | 2018-04-18 | 2019-10-29 | 天津续泽科技发展有限公司 | A kind of control method of gasoline direct injection engine optimal ignition angular advance |
| CN112682241A (en) * | 2020-12-29 | 2021-04-20 | 联合汽车电子有限公司 | Method and device for controlling ignition timing of engine |
-
2022
- 2022-02-22 CN CN202210163816.0A patent/CN115163376B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643267A (en) * | 1987-06-26 | 1989-01-09 | Nissan Motor | Control device for ignition timing of internal combustion engine |
| JPH0968146A (en) * | 1995-09-01 | 1997-03-11 | Mitsubishi Electric Corp | Internal combustion engine control device |
| JP2010190134A (en) * | 2009-02-19 | 2010-09-02 | Suzuki Motor Corp | Ignition timing control device for internal combustion engine |
| CN103114951A (en) * | 2012-09-28 | 2013-05-22 | 浙江吉利罗佑发动机有限公司 | Controlling method of gasoline direct injection engine optimal ignition angular advance |
| CN110388296A (en) * | 2018-04-18 | 2019-10-29 | 天津续泽科技发展有限公司 | A kind of control method of gasoline direct injection engine optimal ignition angular advance |
| CN112682241A (en) * | 2020-12-29 | 2021-04-20 | 联合汽车电子有限公司 | Method and device for controlling ignition timing of engine |
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| CN115163376A (en) | 2022-10-11 |
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