Uniform air inlet control device, method and system for engine and vehicle

Abstract

The invention relates to the technical field of engines, and provides an engine uniform air inlet control device, method and system and a vehicle. The device comprises an intake manifold module and an intake duct module, a plurality of first air pipes are evenly arranged on one side of the air inlet manifold module, and a plurality of second air pipes communicating with the first air pipes are arranged on the corresponding side of the air inlet channel module. An opening-adjustable electromagnetic valve is arranged at the joint of each first air pipe and the corresponding second air pipe, and the amount of air flowing through the first air pipes from the second air pipes is adjusted through the electromagnetic valves; the side, deviating from the first air pipe, of the air inlet manifold module is connected with an engine cylinder cover. Wherein a plurality of air guide channels are uniformly arranged on the intake manifold module in the length direction; one end of each air guide channel communicates with the corresponding first air pipe, and the other end of each air guide channel communicates with an air cylinder in the engine cylinder cover. According to the invention, the air inflow of each cylinder can be uniformly controlled, so that the development requirement is met.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to an engine uniform air intake control device, method, system and vehicle. Background Art

[0002] Patent CN216554163U discloses a diesel engine intake manifold, which relates to the field of engines, including an intake manifold, an intake flange port and an exhaust outlet arranged on the intake manifold, wherein baffles I, II and III are arranged in sequence in the intake manifold, and baffles I, II and III divide the internal cavity of the intake manifold into a one-cylinder channel, a two-cylinder channel, a three-cylinder channel and a four-cylinder channel in sequence, baffles I and III are linear structures, baffles II is a V-shaped structure, and baffles I and III are symmetrically inclined and arranged on both sides of baffle II, and the inlet area of ​​the one-cylinder channel, the two-cylinder channel, the three-cylinder channel and the four-cylinder channel on the side close to the intake flange port is small, and the outlet area on the side away from the intake flange port is large. The utility model can improve the intake uniformity of each cylinder of the engine by adding three baffles in the intake manifold to divide the intake manifold cavity into four channels, thereby improving the power, fuel consumption and comprehensive emissions of the engine.

[0003] Patent CN205172777U discloses an engine intake manifold, including an intake manifold body; an intake duct, a cooling chamber and an outlet duct are arranged in the intake manifold body; there are multiple outlet ducts and all are connected to the intake duct through the cooling chamber; a guide plate for guiding air into the cooling chamber is arranged in the intake duct; the engine intake manifold of the utility model has a guide plate for guiding air in the intake duct, so that the air intake of each outlet duct and each cylinder of the engine is uniform, thereby improving the effective output power and torque of the engine, avoiding the problems of rough operation of the engine, loud working noise, uneven operation of each cylinder and shortened engine life.

[0004] The above-mentioned existing technologies are unable to guarantee the air intake control of each cylinder independently and are unable to adapt to different engines, and have poor adaptability and limited flexibility.

[0005] Since the engine is the core assembly structure of the automobile, a series of performance and function development tests need to be carried out during the development and production process. In the combustion test, accurate measurement and control of the intake volume are involved. Therefore, an engine uniformity control device, method, system, medium and vehicle are urgently needed to achieve uniform intake volume control of each cylinder to meet the development needs. Summary of the invention

[0006] The purpose of this application is to provide an engine uniformity control device, method, system and vehicle, which can accurately control the intake volume of each cylinder and avoid the technical problem of uneven combustion of each cylinder caused by inconsistent intake volume. The specific scheme is as follows:

[0007] An engine uniform air intake control device comprises: an intake manifold module and an intake duct module; a plurality of first air pipes are uniformly arranged on one side of the intake manifold module, and a plurality of second air pipes connected with the first air pipes are arranged on the corresponding side of the intake duct module; an opening-adjustable solenoid valve is arranged at the connection between each first air pipe and the corresponding second air pipe, and the solenoid valve is used to adjust the intake amount flowing from the second air pipe through the first air pipe.

[0008] Further, the side of the intake manifold module facing away from the first air pipe is connected to the engine cylinder head;

[0009] The intake duct module is connected to the engine cylinder head through the intake manifold module; wherein, the intake manifold module is evenly provided with a plurality of air guide channels in the length direction; one end of each air guide channel is connected to the corresponding first air pipe, and the other end is connected to the cylinder inside the engine cylinder head.

[0010] Furthermore, the air intake module is a hollow structure with an opening at one end, and the hollow chamber of the air intake module is connected to a plurality of second air pipes; the air intake module is connected to the air assembly through an opening provided at one end;

[0011] A sensor assembly is also arranged at one end of the hollow chamber close to the opening; the sensor assembly at least includes: a pressure and temperature sensor and an air flow sensor.

[0012] Furthermore, a temperature detection module is provided at one end of each second air pipe close to the solenoid valve; the temperature detection module is used to detect the temperature value inside the first air pipe in real time; the temperature detection module is also used to send an alarm message when the detected temperature value is greater than the temperature threshold.

[0013] Furthermore, it also includes: an ECU control module electrically connected to the temperature detection module and a plurality of solenoid valves respectively; the ECU control module is used to receive alarm information sent by the temperature detection module; the ECU control module is also used to trigger the generation of solenoid valve control instructions according to the alarm information, and control the opening and closing of the solenoid valves through the solenoid valve control instructions.

[0014] In a second aspect, the present application provides a method for controlling uniform air intake of an engine, comprising the following steps:

[0015] Step S1: based on the mapping relationship between the intake air volume and the solenoid valve opening, obtaining the solenoid valve opening value matching the intake air volume;

[0016] Step S2: Calculating the total crankshaft rotation angle data during the intake valve opening period according to the crankshaft angle data, the intake valve early opening angle data and the intake valve delayed closing angle data acquired during the stroke process;

[0017] Step S3: Calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

[0018] In a specific embodiment, the step S1 further includes the following steps:

[0019] Step S0: Using a preset measurement method to construct a mapping relationship between the intake volume and the solenoid valve opening; the preset measurement method specifically includes:

[0020] The exhaust volume of each cylinder is measured by using a dynamometer and a flow meter connected to the exhaust manifold.

[0021] According to the exhaust volume of each cylinder, the opening value of the solenoid valve of each cylinder is adjusted accordingly to make the intake volume of each cylinder the same;

[0022] Based on the normal operation of the engine, the intake volume of each cylinder and the solenoid valve opening mapping relationship are calibrated according to the total intake flow of the engine.

[0023] In a specific embodiment, the step S3 further includes:

[0024] Determine the opening time of the intake valve of each cylinder according to the acquired camshaft position information and the crankshaft position and speed data;

[0025] Based on the opening time of the intake valve of each cylinder, the total opening time of the intake valve of each cylinder is calculated;

[0026] The total opening time of the intake valve of each cylinder is calculated according to the following formula: total opening time=total crankshaft rotation angle / (engine speed÷60×360°).

[0027] In a third aspect, the present application provides an engine uniform air intake control system, comprising:

[0028] A solenoid valve opening acquisition module is configured to acquire a solenoid valve opening value matching the intake air volume based on a mapping relationship between the intake air volume and the solenoid valve opening;

[0029] A calculation module configured to calculate the total crankshaft rotation angle data during the intake valve opening period according to the crankshaft rotation angle data, the intake valve early opening angle data and the intake valve delayed closing angle data acquired during the stroke process;

[0030] The processing module is configured to calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

[0031] In a fourth aspect, the present application provides a vehicle provided with the engine uniform air intake control system.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention provides an engine uniform air intake control device, method, system and vehicle, which can accurately control the air intake amount of each cylinder to ensure that the air intake amount of each cylinder is consistent, thereby reducing the problem of uneven combustion of each cylinder caused by inconsistent air intake amount, thereby affecting the test results of the engine combustion test and causing damage to the engine crankshaft, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the engine uniform air intake control device;

[0035] Figure 2 It is a schematic diagram of the structure of one side of the intake manifold module;

[0036] Figure 3 It is a flow chart of a method for controlling uniform air intake of an engine;

[0037] Figure 4 This is a schematic diagram of measuring the exhaust of each cylinder using the dynamometer reverse drag method.

[0038] In the figure:

[0039] 1. Intake manifold module; 2. Intake duct module; 3. First air pipe; 4. Second air pipe; 5. Solenoid valve; 6. Engine cylinder head; 7. Air guide channel. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of this application clearer, the following will be combined with the attached Figure 1-4 The present application is further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0041] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0042] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0044] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0045] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0046] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0047] First of all, in order to facilitate understanding of the engine uniform intake control device, method, system and vehicle provided by the present application, the following detailed explanation is made: The main means of the current prior art is to improve the structure of the intake manifold, but in this way, due to the intake duct structure and the distribution position of each cylinder, in the engine combustion test, it is impossible to ensure that the intake volume of each cylinder of the engine is uniform, which in turn affects the test results of the engine combustion test. Even due to the uneven intake volume, that is, the uneven combustion of each cylinder will cause the force generated by the piston of each cylinder on the crankshaft to be uneven, which will cause jitter and noise when the engine is running. At the same time, being in this state for a long time will cause damage to the crankshaft.

[0048] Therefore, based on the above content, the present application provides an engine intake uniformity control device and method, which can accurately control the intake volume of each cylinder to ensure that the intake volume of each cylinder is consistent, that is, it overcomes the problem of uneven intake of a single cylinder of the engine, thereby avoiding the problem of uneven combustion of each cylinder caused by inconsistent intake volume. Moreover, the engine intake uniformity control method adopted in the present application has high control accuracy, high efficiency, and high adaptability, and there is no need to redesign the engine intake manifold and intake duct structure for different models.

[0049] Combine the following Figure 1-Figure 2 The embodiments of the present application are described in detail.

[0050] An engine uniform air intake control device comprises: an intake manifold module 1 and an intake duct module 2; a plurality of first air pipes are uniformly arranged on one side of the intake manifold module, and a plurality of second air pipes connected to the first air pipes are arranged on the corresponding side of the intake duct module 2; an opening-adjustable solenoid valve 5 is arranged at the connection between each first air pipe and the corresponding second air pipe, and the solenoid valve 5 is used to adjust the intake amount flowing from the second air pipe through the first air pipe.

[0051] Specifically, the side of the intake manifold module 1 facing away from the first air pipe 3 is connected to the engine cylinder head 6; the intake duct module 2 is connected to the engine cylinder head 6 through the intake manifold module 1; wherein, a plurality of air guide channels 7 are evenly arranged on the intake manifold module 1 in the length direction; one end of each air guide channel 7 is connected to the corresponding first air pipe 3, and the other end is connected to the cylinder inside the engine cylinder head 6.

[0052] It can be understood that the present application realizes cylinder control during the intake process by setting the solenoid valve 5 at the connection between the first air pipe and the second air pipe 4, and by adjusting the opening of the solenoid valve 5 corresponding to each cylinder, the intake volume of each cylinder is ensured to be as uniform as possible, which can reduce the technical problem of uneven combustion in each cylinder caused by inconsistent intake volume, thereby affecting the test results and test accuracy of the engine combustion test.

[0053] Furthermore, the air intake module 2 is a hollow structure with an opening at one end, and the hollow chamber of the air intake module is connected to a plurality of second air pipes 4; the air intake module 2 is connected to the air assembly through an opening provided at one end;

[0054] A sensor assembly is also arranged at one end of the hollow chamber close to the opening; the sensor assembly at least includes: a pressure and temperature sensor and an air flow sensor.

[0055] It can be understood that the present application can adapt to engine combustion tests of different models through the structural design of the intake duct module and has high adaptability.

[0056] Furthermore, a temperature detection module is also provided at one end of each second air pipe 4 close to the solenoid valve 5; the temperature detection module is used to detect the temperature value inside the first air pipe in real time; the temperature detection module is also used to send an alarm message when the detected temperature value is greater than the temperature threshold.

[0057] It can be understood that the present application mainly plays a preventive role through the temperature detection module to prevent the pressure temperature sensor and the air flow sensor in the intake duct module from being burned when the engine backfires.

[0058] Furthermore, the present application also includes: an ECU control module electrically connected to the temperature detection module and several solenoid valves 5 respectively; the ECU control module is used to receive alarm information sent by the temperature detection module; the ECU control module is also used to trigger the generation of solenoid valve control instructions according to the alarm information, and control the opening and closing of the solenoid valves through the solenoid valve control instructions.

[0059] Specifically, when the temperature detection module detects that the temperature value inside the first air pipe is higher than the temperature threshold, it sends an alarm message to the ECU control module. At this time, the ECU control module sends a solenoid valve control instruction to the solenoid valve according to the alarm message to close the air intake of the corresponding cylinder, thereby preventing the sensor component in the intake duct module from burning and saving testing costs.

[0060] like Figure 3 As shown, the present application provides a method for controlling uniform intake of an engine, comprising the following steps:

[0061] Step S1: based on the mapping relationship between the intake air volume and the solenoid valve opening, obtaining the solenoid valve opening value matching the intake air volume;

[0062] Step S2: Calculating the total crankshaft rotation angle data during the intake valve opening period according to the crankshaft angle data, the intake valve early opening angle data and the intake valve delayed closing angle data acquired during the stroke process;

[0063] Step S3: Calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

[0064] Specifically, this application obtains the solenoid valve opening value of each cylinder that matches the intake volume through the mapping relationship between the intake volume and the solenoid valve opening, thereby solving the problem of uneven intake of a single cylinder of the engine and providing technical support for subsequent engine tests. Furthermore, by calculating the total crankshaft rotation angle data and engine speed during the stroke period when the intake valve is open, the total opening time of the intake valve of each cylinder is calculated separately, so that the corresponding cylinder intake can be opened within the required time and closed within the unnecessary time, thereby avoiding interference with the intake of other cylinders and ensuring that the intake process of all cylinders is consistent. In this way, the consistency of the intake of each cylinder is achieved, thereby completing the accurate control of the intake volume, meeting the development needs, and ensuring the test accuracy of the engine combustion test.

[0065] Combination Figure 4 As shown, the step S1 also includes the following steps:

[0066] Step S0: Using a preset measurement method to construct a mapping relationship between the intake volume and the solenoid valve opening; the preset measurement method specifically includes:

[0067] The exhaust volume of each cylinder is measured by using a dynamometer and a flow meter connected to the exhaust manifold.

[0068] According to the exhaust volume of each cylinder, the opening value of the solenoid valve of each cylinder is adjusted accordingly to make the intake volume of each cylinder the same;

[0069] Based on the normal operation of the engine, the intake volume of each cylinder and the solenoid valve opening mapping relationship are calibrated according to the total intake flow of the engine.

[0070] Specifically, the present application measures the exhaust volume of each cylinder by using a dynamometer to reversely drag the engine, and adjusts the intake valve opening according to the exhaust volume of each cylinder, so that the intake volume of each cylinder is consistent. When the engine is running normally, the intake volume and solenoid valve mapping relationship curve of each cylinder is calibrated according to the total intake flow of the engine. When the engine is running normally, the calibration curve covers the solenoid valve opening data corresponding to the maximum intake volume and the minimum intake volume of each cylinder.

[0071] In step S2, the total crankshaft rotation angle=crankshaft rotation angle during the stroke+intake valve early opening angle+intake valve delayed closing angle.

[0072] The step S3 further includes: determining the opening time of the intake valve of each cylinder according to the acquired camshaft position information and the crankshaft position and speed data;

[0073] Based on the opening time of the intake valve of each cylinder, the total opening time of the intake valve of each cylinder is calculated;

[0074] The total opening time of the intake valve of each cylinder is calculated according to the following formula: total opening time=total crankshaft rotation angle / (engine speed÷60×360°).

[0075] It can be understood that the present application calculates the opening time and total opening time of the intake valve of each cylinder and controls the opening of the solenoid valve of each cylinder to complete the precise control of the intake of a single cylinder, thereby achieving consistent intake of each cylinder and preventing interference with the intake of other cylinders, thereby ensuring the test results of the engine combustion test and avoiding possible damage to the engine crankshaft.

[0076] In a second aspect, the present application provides an engine uniform air intake control system, comprising:

[0077] A solenoid valve opening acquisition module is configured to acquire a solenoid valve opening value matching the intake air volume based on a mapping relationship between the intake air volume and the solenoid valve opening;

[0078] A calculation module configured to calculate the total crankshaft rotation angle data during the intake valve opening period according to the crankshaft rotation angle data, the intake valve early opening angle data and the intake valve delayed closing angle data acquired during the stroke process;

[0079] The processing module is configured to calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

[0080] It is worth noting that although the system only discloses the solenoid valve opening acquisition module, the calculation module, and the processing module, it does not mean that the device is limited to the above-mentioned basic functional modules; what the present invention wants to express is that, based on the above-mentioned basic functional modules, technical personnel in this field can arbitrarily add one or more functional modules in combination with the prior art to form an infinite number of embodiments or technical solutions. In other words, the system is open rather than closed. Just because the present embodiment only discloses individual basic functional modules, it cannot be considered that the scope of protection of the claims of the present invention is limited to the above-mentioned basic functional modules.

[0081] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0082] On the other hand, the present application provides a computer-readable storage medium storing a computer program executable by an electronic device, wherein when the computer program runs on the electronic device, the electronic device executes the steps of the method.

[0083] On the other hand, the present application provides a vehicle provided with the engine uniform air intake control system.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An engine uniform air intake control device, characterized in that: include: An intake manifold module (1) and an intake duct module (2); a plurality of first air pipes (3) are evenly arranged on one side of the intake manifold module, and a plurality of second air pipes (4) connected to the first air pipes (3) are arranged on the corresponding side of the intake duct module (2); a solenoid valve (5) with an adjustable opening is arranged at the connection between each first air pipe (3) and the corresponding second air pipe (4), and the solenoid valve (5) is used to adjust the intake volume flowing from the second air pipe (4) through the first air pipe (3).

2. The engine uniform air intake control device according to claim 1, characterized in that: The side of the intake manifold module (1) facing away from the first air pipe (3) is connected to the engine cylinder head (6); The air intake module (2) is connected to the engine cylinder head (6) via the air intake manifold module (1); wherein a plurality of air guide channels (7) are evenly arranged in the length direction on the air intake manifold module (1); one end of each air guide channel (7) is connected to the corresponding first air pipe (3), and the other end is connected to the cylinder inside the engine cylinder head (6).

3. The engine uniform air intake control device according to claim 2, characterized in that: The air intake module (2) is a hollow structure with an opening at one end, and the hollow chamber of the air intake module (2) is connected to a plurality of second air pipes (4); the air intake module (2) is connected to the air assembly through an opening provided at one end; A sensor assembly is also arranged at one end of the hollow chamber close to the opening; the sensor assembly at least includes: a pressure and temperature sensor and an air flow sensor.

4. The engine uniform air intake control device according to claim 3, characterized in that: Each of the second air pipes (4) is also provided with a temperature detection module at one end close to the solenoid valve (5); the temperature detection module is used to detect the temperature value inside the first air pipe (3) in real time; the temperature detection module is also used to send an alarm message when the detected temperature value is greater than a temperature threshold.

5. The engine uniform air intake control device according to claim 4, characterized in that: Also includes: An ECU control module electrically connected to the temperature detection module and the plurality of solenoid valves (5); The ECU control module is used to receive the alarm information sent by the temperature detection module; the ECU control module is also used to trigger the generation of a solenoid valve control instruction according to the alarm information, and control the opening and closing of the solenoid valve through the solenoid valve control instruction.

6. A method for controlling uniform air intake of an engine, characterized in that: The following steps are involved: Step S1: based on the mapping relationship between the intake air volume and the solenoid valve opening, obtaining the solenoid valve opening value matching the intake air volume; Step S2: Calculating the total crankshaft rotation angle data during the intake valve opening period according to the crankshaft angle data, the intake valve early opening angle data and the intake valve delayed closing angle data acquired during the stroke process; Step S3: Calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

7. The engine uniform air intake control method according to claim 6, characterized in that: The step S1 also includes the following steps: Step S0: Using a preset measurement method to construct a mapping relationship between the intake volume and the solenoid valve opening; the preset measurement method specifically includes: The exhaust volume of each cylinder is measured by using a dynamometer and a flow meter connected to the exhaust manifold. According to the exhaust volume of each cylinder, the opening value of the solenoid valve of each cylinder is adjusted accordingly to make the intake volume of each cylinder the same; Based on the normal operation of the engine, the intake volume of each cylinder and the solenoid valve opening mapping relationship are calibrated according to the total intake flow of the engine.

8. The engine uniform intake control method according to claim 6, characterized in that: The step S3 further includes: Determine the opening time of the intake valve of each cylinder according to the acquired camshaft position information and the crankshaft position and speed data; Based on the opening time of the intake valve of each cylinder, the total opening time of the intake valve of each cylinder is calculated; The total opening time of the intake valve of each cylinder is calculated according to the following formula: total opening time=total crankshaft rotation angle / (engine speed÷60×360°).

9. An engine uniform air intake control system, characterized in that: include: A solenoid valve opening acquisition module is configured to acquire a solenoid valve opening value matching the intake air volume based on a mapping relationship between the intake air volume and the solenoid valve opening; A calculation module configured to calculate the total crankshaft rotation angle data during the intake valve opening period according to the acquired crankshaft angle data, the intake valve early opening angle data and the intake valve delayed closing angle data during the stroke process; The processing module is configured to calculate the total opening time of the intake valve of each cylinder according to the total crankshaft rotation angle data and the engine speed.

10. A vehicle, characterized in that: The vehicle is provided with the engine uniform air intake control system as claimed in claim 9.

Images