阅读说明：本技术 车辆电控配气结构管理系统 (Vehicle electric control gas distribution structure management system ) 是由 虞锋 于 2020-12-08 设计创作，主要内容包括：本发明涉及一种车辆电控配气结构管理系统,包括：电控配气结构,包括开度修正机构、凸轮轴正时齿形带轮、正时齿形带、张紧轮、水泵齿形带轮、曲轴正时齿形带轮、挺柱体、气门锁片、上气门弹簧座、气门弹簧、气门油封、气门导管、进气门座、进气门、排气门座和排气门；参数转换设备,用于基于各个油污区域占据当前滤波图像的百分比调节进气门的修正开度；开度修正机构用于基于接收到的修正开度对进气门的当前设定开度进行相应幅度的修正。本发明的车辆电控配气结构管理系统设计紧凑、具有一定的自控水准。由于能够根据当前车辆进气门的油污分布面积自适应调节对进气门开度的增加幅度,从而使得当前进气门的开度更接近用户期望值。(The invention relates to a vehicle electric control gas distribution structure management system, which comprises: the electric control gas distribution structure comprises an opening correction mechanism, a camshaft timing toothed belt wheel, a timing toothed belt, a tension wheel, a water pump toothed belt wheel, a crankshaft timing toothed belt wheel, a tappet body, a valve lock plate, an upper valve spring seat, a valve spring, a valve oil seal, a valve guide pipe, an air inlet valve seat, an air inlet valve, an exhaust valve seat and an exhaust valve; the parameter conversion equipment is used for adjusting the correction opening of the air inlet valve based on the percentage of each oil stain area occupying the current filtering image; the opening correction mechanism is used for correcting the current set opening of the intake valve by a corresponding amplitude based on the received corrected opening. The vehicle electric control gas distribution structure management system is compact in design and has a certain automatic control level. The increase amplitude of the opening degree of the air inlet valve can be adjusted in a self-adaptive mode according to the oil stain distribution area of the current air inlet valve of the vehicle, so that the opening degree of the current air inlet valve is closer to the expected value of a user.)

1. An electronically controlled valve train management system for a vehicle, the system comprising:

the electric control gas distribution structure comprises an opening correction mechanism, a camshaft timing toothed belt wheel, a timing toothed belt, a tension wheel, a water pump toothed belt wheel, a crankshaft timing toothed belt wheel, a tappet body, a valve locking plate, an upper valve spring seat, a valve spring, a valve oil seal, a valve guide pipe, a gas inlet valve seat, a gas inlet valve, a gas outlet valve seat and a gas outlet valve, wherein the timing toothed belt is maintained among the camshaft timing toothed belt wheel, the tension wheel, the water pump toothed belt wheel and the crankshaft timing toothed belt wheel, and the tappet body, the valve locking plate, the upper valve spring seat, the valve spring, the valve oil seal, the valve guide pipe, the gas inlet valve seat, the gas inlet valve, the gas outlet valve seat and the gas outlet valve are sequentially arranged at the bottom of the camshaft from top;

the embedded camera is embedded in the protective cover opposite to the air inlet valve, is connected with the timing toothed belt and is used for performing camera shooting action on the valve port of the air inlet valve at the clearance when the timing toothed belt stops running so as to obtain an air valve environment image;

the data transformation equipment is connected with the embedded camera and used for executing affine transformation processing on the received valve environment image so as to obtain a corresponding instant transformation image;

the signal processing mechanism is connected with the data conversion equipment and is used for executing nonlinear filtering processing on the received instant conversion image so as to obtain a corresponding current filtering image;

the oil stain collecting mechanism is connected with the signal processing mechanism and used for identifying each oil stain area in the current filtering image based on the brightness value distribution range of the oil stains;

the parameter conversion equipment is connected with the oil stain collection mechanism and used for adjusting the correction opening of the inlet valve based on the percentage of each oil stain area occupying the current filtering image;

the opening correction mechanism is connected with the parameter conversion equipment and is used for correcting the current set opening of the inlet valve by corresponding amplitude based on the received corrected opening;

wherein the current set opening of the intake valve is the opening of the intake valve corresponding to the accelerator depth currently stepped by the driver;

wherein the current set opening of the intake valve is an opening of the intake valve corresponding to a depth of an accelerator currently stepped on by a driver includes: the shallower the accelerator depth is, the smaller the opening degree of the corresponding intake valve is;

wherein adjusting the corrected opening of the intake valve based on the percentage of the respective greasy dirt area occupying the current filtered image comprises: the larger the percentage of each oil stain area occupying the current filtering image is, the larger the corrected opening of the intake valve is after adjustment is;

wherein the correction of the current set opening of the intake valve by the corresponding magnitude based on the received corrected opening comprises: the larger the received corrected opening, the larger the magnitude of the lift of the current set opening for the intake valve.

2. An electrically controlled valve train management system for a vehicle according to claim 1, wherein:

the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment are all arranged in an instrument panel of the vehicle.

3. An electrically controlled valve train management system for a vehicle according to claim 2, wherein:

identifying each greasy dirt area in the current filtered image based on the brightness value distribution range of the greasy dirt comprises: and taking the pixel points of which the brightness values are within the brightness value distribution range of the oil stain in the current filtering image as target pixel points to obtain all the target pixel points in the current filtering image.

4. An electrically controlled valve train management system for a vehicle according to claim 3, wherein:

identifying each oil stain area in the current filtered image based on the brightness value distribution range of the oil stain further comprises: and fitting each target pixel point in the current filtering image to obtain each oil stain area in the current filtering image.

5. An electrically controlled valve train management system for a vehicle according to claim 4, wherein:

adjusting the corrected opening of the intake valve based on the percentage of the respective greasy dirt area occupying the current filtered image further comprises: and accumulating the area of each oil stain area in the current filtering image, and dividing the accumulated result by the whole area of the current filtering image to obtain the percentage of each corresponding oil stain area occupying the current filtering image.

6. An electrically controlled valve train management system for a vehicle according to claim 5, wherein the system further comprises:

the parameter configuration interface is respectively connected with the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment;

the parameter configuration interface is used for sequentially executing configuration actions on working parameters of the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment.

7. An electrically controlled valve train management system for a vehicle according to claim 6, wherein:

the embedded camera is also used for stopping executing the camera shooting action on the valve port of the inlet valve when the timing toothed belt runs.

8. An electrically controlled valve train management system for a vehicle according to claim 7, wherein the system further comprises:

and the data storage mechanism is connected with the parameter conversion equipment and is used for storing the mapping relation between different percentages and different correction opening degrees.

9. An electrically controlled valve train management system for a vehicle according to claim 8, wherein:

the data storage mechanism is also respectively connected with the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment;

the data storage mechanism is used for storing respective temporary storage data of the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment.

10. An electrically controlled valve train management system for a vehicle according to claim 9, wherein:

in the electric control gas distribution structure, the camshaft is connected with the wheel body axle center of the camshaft timing toothed belt wheel;

the electric control air distribution structure is used for opening and closing an intake valve and an exhaust valve of each cylinder of the vehicle at regular time, so that fresh combustible mixed gas or air enters the cylinders, and waste gas in the cylinders is discharged from the cylinders.

Technical Field

The invention relates to the field of vehicle management, in particular to a vehicle electric control gas distribution structure management system.

Background

The air distribution mechanism of engine (internal combustion engine) is characterized by that according to the requirements of working cycle and ignition sequence in every cylinder of engine the air inlet and outlet valves of every cylinder can be opened and closed at regular time so as to make fresh combustible mixed gas (gasoline engine) or air (diesel engine) be fed into the cylinder in time, and the waste gas can be discharged from the cylinder in time. In the compression and work strokes, the valve is closed to ensure the sealing of the combustion chamber.

The valve train has the structural parameters and forms favorable for reducing air intake and exhaust resistance, and the opening time and the extended opening time of the air intake valve and the exhaust valve are proper, so that the air intake and the exhaust are as sufficient as possible, and larger power torque and emission performance are obtained.

The degree to which the cylinder is filled with fresh air or air is expressed in terms of charge efficiency. The higher the charge efficiency, indicating that the more mass of fresh air or combustible mixture entering the cylinder, the more heat the combustion mixture may generate and the more power the engine is. For an engine of a given volume (V), the mass is related to the T and P at the end of the intake, the lower the T and P of the intake, the greater the mass of the intake, and the higher the charge efficiency.

However, the resistance of the air intake system to the air causes the pressure in the cylinder to decrease when the air intake is finished, and the temperature of the air at the end of the air intake is increased because of the residual high-temperature waste gas in the previous cycle, so that the mass of the actually-entering air is always smaller than that of the air filled in the cylinder in a normal state. That is, the inflation efficiency is always less than 1. Generally 0.8 to 0.9.

At present, the automatically controlled gas distribution structure of vehicle's air intake valve aperture receives driver's throttle control of trampling, the throttle is trampled deeply, the air intake valve aperture is big more, fresh combustible gas or the volume that the air got into the cylinder are more, the vehicle rotational speed is big more, however in actual control, the valve port of air intake valve bonds and has the greasy dirt of certain distribution area, and then influence the volume of fresh combustible gas or the air that the air intake valve got into under current aperture and can't reach driver's true demand, the volume that needs to carry out the promotion of air intake aperture in order to guarantee to get into the fresh combustible gas or the air of cylinder is close driver's true demand.

Disclosure of Invention

The invention needs to have at least the following key points:

(1) carrying out camera shooting action and targeted image processing action on a valve port of an air inlet valve of the vehicle in a gap where a timing toothed belt of the vehicle stops running so as to analyze the oil stain distribution area of the valve port of the air inlet valve;

(2) the lifting amplitude of the current opening of the air inlet valve controlled by the accelerator is adjusted based on the oil distribution area of the valve port of the air inlet valve, the wider the oil distribution area is, the larger the lifting amplitude of the current opening of the air inlet valve controlled by the accelerator is, and therefore the gas combustible mixture or air entering the air cylinder at present of the vehicle air distribution structure is close to the real expected value of a user.

According to an aspect of the present invention, there is provided an electronically controlled valve train management system for a vehicle, the system comprising:

the electric control gas distribution structure comprises an opening correction mechanism, a camshaft timing toothed belt wheel, a timing toothed belt, a tension wheel, a water pump toothed belt wheel, a crankshaft timing toothed belt wheel, a tappet body, a valve locking plate, an upper valve spring seat, a valve spring, a valve oil seal, a valve guide pipe, a gas inlet valve seat, a gas inlet valve, a gas outlet valve seat and a gas outlet valve, wherein the timing toothed belt is maintained among the camshaft timing toothed belt wheel, the tension wheel, the water pump toothed belt wheel and the crankshaft timing toothed belt wheel, and the tappet body, the valve locking plate, the upper valve spring seat, the valve spring, the valve oil seal, the valve guide pipe, the gas inlet valve seat, the gas inlet valve, the gas outlet valve seat and the gas outlet valve are sequentially arranged at the bottom of the camshaft from top;

the embedded camera is embedded in the protective cover opposite to the air inlet valve, is connected with the timing toothed belt and is used for performing camera shooting action on the valve port of the air inlet valve at the clearance when the timing toothed belt stops running so as to obtain an air valve environment image;

the data transformation equipment is connected with the embedded camera and used for executing affine transformation processing on the received valve environment image so as to obtain a corresponding instant transformation image;

the signal processing mechanism is connected with the data conversion equipment and is used for executing nonlinear filtering processing on the received instant conversion image so as to obtain a corresponding current filtering image;

the oil stain collecting mechanism is connected with the signal processing mechanism and used for identifying each oil stain area in the current filtering image based on the brightness value distribution range of the oil stains;

the parameter conversion equipment is connected with the oil stain collection mechanism and used for adjusting the correction opening of the inlet valve based on the percentage of each oil stain area occupying the current filtering image;

the opening correction mechanism is connected with the parameter conversion equipment and is used for correcting the current set opening of the inlet valve by corresponding amplitude based on the received corrected opening;

wherein the current set opening of the intake valve is the opening of the intake valve corresponding to the accelerator depth currently stepped by the driver;

wherein the current set opening of the intake valve is an opening of the intake valve corresponding to a depth of an accelerator currently stepped on by a driver includes: the shallower the accelerator depth is, the smaller the opening degree of the corresponding intake valve is;

wherein adjusting the corrected opening of the intake valve based on the percentage of the respective greasy dirt area occupying the current filtered image comprises: the larger the percentage of each oil stain area occupying the current filtering image is, the larger the corrected opening of the intake valve is after adjustment is;

wherein the correction of the current set opening of the intake valve by the corresponding magnitude based on the received corrected opening comprises: the larger the received corrected opening, the larger the magnitude of the lift of the current set opening for the intake valve.

The vehicle electric control gas distribution structure management system is compact in design and has a certain automatic control level. The increase amplitude of the opening degree of the air inlet valve can be adjusted in a self-adaptive mode according to the oil stain distribution area of the current air inlet valve of the vehicle, so that the opening degree of the current air inlet valve is closer to the expected value of a user.

Drawings

Embodiments of the invention will now be described with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a working scenario of a timing toothed belt of an electric control valve timing structure management system of a vehicle according to an embodiment of the present invention.

Detailed Description

Embodiments of an electronically controlled valve train management system for a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

The air intake system consists of an air filter, an air flow meter, an air intake pressure sensor, a throttle valve body, an additional air valve, an idle speed control valve, a resonant cavity, a power cavity, an air intake manifold and the like.

The main function of the air intake system is to convey clean, dry, sufficient and stable air for the engine to meet the requirement of the engine, and to avoid the abnormal abrasion of the engine caused by the impurities and large-particle dust in the air entering the combustion chamber of the engine. Another important function of the intake system is noise reduction, which affects not only the vehicle passing noise but also the vehicle interior noise, which has a great influence on ride comfort. The design of the air intake system directly influences the power and the noise quality of the engine, and is related to the riding comfort of the whole vehicle. The noise elimination element is reasonably designed, so that the noise of the subsystem can be reduced, and the NVH performance of the whole vehicle is improved.

When the engine is in operation, the driver operates the opening of the throttle valve through the accelerator pedal to change the intake air amount and control the operation of the engine. Air entering the engine is filtered by an air filter to remove impurities such as dust and the like, then flows through an air flow meter, enters a power cavity along a throttle valve channel, and is distributed to each cylinder through an air inlet manifold; when the engine runs at a cold idle speed, part of air bypasses a throttle valve through an additional air valve or an idle speed control valve and enters a cylinder.

At present, the automatically controlled gas distribution structure of vehicle's air intake valve aperture receives driver's throttle control of trampling, the throttle is trampled deeply, the air intake valve aperture is big more, fresh combustible gas or the volume that the air got into the cylinder are more, the vehicle rotational speed is big more, however in actual control, the valve port of air intake valve bonds and has the greasy dirt of certain distribution area, and then influence the volume of fresh combustible gas or the air that the air intake valve got into under current aperture and can't reach driver's true demand, the volume that needs to carry out the promotion of air intake aperture in order to guarantee to get into the fresh combustible gas or the air of cylinder is close driver's true demand.

In order to overcome the defects, the invention builds the vehicle electric control gas distribution structure management system, and can effectively solve the corresponding technical problems.

The vehicle electronic control valve timing structure management system according to the embodiment of the invention comprises:

the electric control gas distribution structure comprises an opening correction mechanism, a camshaft timing toothed belt wheel, a timing toothed belt, a tension wheel, a water pump toothed belt wheel, a crankshaft timing toothed belt wheel, a tappet body, a valve locking plate, an upper valve spring seat, a valve spring, a valve oil seal, a valve guide pipe, a gas inlet valve seat, a gas inlet valve, a gas outlet valve seat and a gas outlet valve, wherein the timing toothed belt is maintained among the camshaft timing toothed belt wheel, the tension wheel, the water pump toothed belt wheel and the crankshaft timing toothed belt wheel, and the tappet body, the valve locking plate, the upper valve spring seat, the valve spring, the valve oil seal, the valve guide pipe, the gas inlet valve seat, the gas inlet valve, the gas outlet valve seat and the gas outlet valve are sequentially arranged at the bottom of the camshaft from top;

fig. 1 is a schematic view of a working scene of a timing toothed belt of an electric control valve timing structure management system of a vehicle according to an embodiment of the invention, wherein the toothed belt in fig. 1 is the timing toothed belt;

the embedded camera is embedded in the protective cover opposite to the air inlet valve, is connected with the timing toothed belt and is used for performing camera shooting action on the valve port of the air inlet valve at the clearance when the timing toothed belt stops running so as to obtain an air valve environment image;

the data transformation equipment is connected with the embedded camera and used for executing affine transformation processing on the received valve environment image so as to obtain a corresponding instant transformation image;

the signal processing mechanism is connected with the data conversion equipment and is used for executing nonlinear filtering processing on the received instant conversion image so as to obtain a corresponding current filtering image;

the oil stain collecting mechanism is connected with the signal processing mechanism and used for identifying each oil stain area in the current filtering image based on the brightness value distribution range of the oil stains;

the parameter conversion equipment is connected with the oil stain collection mechanism and used for adjusting the correction opening of the inlet valve based on the percentage of each oil stain area occupying the current filtering image;

the opening correction mechanism is connected with the parameter conversion equipment and is used for correcting the current set opening of the inlet valve by corresponding amplitude based on the received corrected opening;

wherein the current set opening of the intake valve is the opening of the intake valve corresponding to the accelerator depth currently stepped by the driver;

wherein the current set opening of the intake valve is an opening of the intake valve corresponding to a depth of an accelerator currently stepped on by a driver includes: the shallower the accelerator depth is, the smaller the opening degree of the corresponding intake valve is;

wherein adjusting the corrected opening of the intake valve based on the percentage of the respective greasy dirt area occupying the current filtered image comprises: the larger the percentage of each oil stain area occupying the current filtering image is, the larger the corrected opening of the intake valve is after adjustment is;

wherein the correction of the current set opening of the intake valve by the corresponding magnitude based on the received corrected opening comprises: the larger the received corrected opening, the larger the magnitude of the lift of the current set opening for the intake valve.

Next, the detailed structure of the vehicle electrically controlled valve train management system according to the present invention will be further described.

In the vehicle electronic control valve timing structure management system:

the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment are all arranged in an instrument panel of the vehicle.

In the vehicle electronic control valve timing structure management system:

identifying each greasy dirt area in the current filtered image based on the brightness value distribution range of the greasy dirt comprises: and taking the pixel points of which the brightness values are within the brightness value distribution range of the oil stain in the current filtering image as target pixel points to obtain all the target pixel points in the current filtering image.

In the vehicle electronic control valve timing structure management system:

identifying each oil stain area in the current filtered image based on the brightness value distribution range of the oil stain further comprises: and fitting each target pixel point in the current filtering image to obtain each oil stain area in the current filtering image.

In the vehicle electronic control valve timing structure management system:

adjusting the corrected opening of the intake valve based on the percentage of the respective greasy dirt area occupying the current filtered image further comprises: and accumulating the area of each oil stain area in the current filtering image, and dividing the accumulated result by the whole area of the current filtering image to obtain the percentage of each corresponding oil stain area occupying the current filtering image.

In the vehicle electronic control valve timing structure management system, the method further comprises:

the parameter configuration interface is respectively connected with the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment;

the parameter configuration interface is used for sequentially executing configuration actions on working parameters of the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment.

In the vehicle electronic control valve timing structure management system:

the embedded camera is also used for stopping executing the camera shooting action on the valve port of the inlet valve when the timing toothed belt runs.

In the vehicle electronic control valve timing structure management system, the method further comprises:

and the data storage mechanism is connected with the parameter conversion equipment and is used for storing the mapping relation between different percentages and different correction opening degrees.

In the vehicle electronic control valve timing structure management system:

the data storage mechanism is also respectively connected with the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment;

the data storage mechanism is used for storing respective temporary storage data of the data conversion equipment, the signal processing mechanism, the oil stain collecting mechanism and the parameter conversion equipment.

In the vehicle electronic control valve timing structure management system:

in the electric control gas distribution structure, the camshaft is connected with the wheel body axle center of the camshaft timing toothed belt wheel;

the electric control air distribution structure is used for opening and closing an intake valve and an exhaust valve of each cylinder of the vehicle at regular time, so that fresh combustible mixed gas or air enters the cylinders, and waste gas in the cylinders is discharged from the cylinders.

In addition, in the vehicle electric control valve timing structure management system, the parameter configuration interface is a power line communication interface. The Power Line Carrier-PLC communication is a special communication mode for carrying out voice or data transmission by using a Power Line as an information transmission medium. The power lines are generally classified into high, medium and low 3 types in the field of power carrier, generally, a high-voltage power line refers to a voltage class of 35kV or more, a medium-voltage power line refers to a voltage class of 10kV, and a low-voltage distribution line refers to 380/220V subscriber lines. Power Line Carrier (PLC) is a communication method specific to a Power system, and Power Line Carrier communication is a technology for transmitting analog or digital signals at high speed by a Carrier method using an existing Power Line. The method has the greatest characteristic that data transmission can be carried out only by wires without erecting a network again. The power line carrier technology breaks through the limitation of being limited to the application of a single chip microcomputer, has entered the digital era, and with the continuous development of the power line carrier technology and the social needs, the technical development and application of medium/low voltage power line carrier communication are still emerging.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.