TW495579B - Air valve control method - Google Patents

Abstract

A method of controlling airflow to an engine having an intake air throttle, an air bypass line bypassing the throttle, and an air valve supported on the bypass line for controlling the passage of air therethrough, the method including opening the air valve as a function of a crankangle of the engine at least at some point of the engine operating load range.

Description

495579 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ------------ B7___ V. Invention Description (丨) " ''-This invention relates to the control of air flow in internal combustion engines. The present invention will be described with reference to a four-stroke valve injection engine, and it must be understood that this engine and other engines' such as direct injection and two-stroke engines. In a four-stroke h-door injection engine, engine load control is basically obtained by controlling the airflow into the engine. In a basic combination, the main airflow control is controlled by an engine throttle valve and a bypass valve equipped with a more accurate and / or balanced airflow control, especially when the engine is running slowly and starting. The bypass valve is basically positioned on one of the bypass lines across the throttle.气流 In some basically larger engines, the airflow meter, the absolute manifold force (MAP) sensor or other sensors can basically determine the airflow to the engine. Therefore, the engine has some airflow feedback that actually flows to the engine. Therefore, the bypass can be controlled according to the decision, ie, the closed-loop control of the air flow to the engine, which is known, however, in smaller engines, for example, a single steam rainbow engine for motorcycles, which has The price of this feedback configuration can be very expensive. Therefore, the bypass must be controlled without air flow back, that is, the open air control of the air flow to the engine. Therefore, in this open circuit control, it is best to control the bypass valve to prepare-known Repeatable airflow. One way to achieve this is to use a stepper motor to start the bypass valve, where a very small pressure drop exists between the number of motor stages and the air flow through the bypass line. This allows precise control of the air flow to the engine. However, the problem with having a stepping motor to control the bypass valve is that it has a relatively low response speed relative to the engine cycle. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) " ΦΜ-- --------------- (Please read the notes on the back before filling this page) 4 495579 A7 B7 V. Description of the invention (2 and very expensive 'especially for low-cost small engines, As for the low-cost small-engine applications used by the single steam red motorcycle. Another configuration is to use a suitable solenoid start valve driven with a pulse width adjustment (pwM) signal. In this configuration, bypass The airflow of the pipe is a direct function of the PWM signal provided to the valve. That is, the p-signal can basically be changed to adjust the position between the maximum and minimum open positions to control the airflow to the engine. However The problem with this configuration is that the battery voltage fluctuation affects the relationship between the pWM signal and the wide position. In addition, the operating temperature of the coil valve can also affect the function of the spiral f coil. Therefore, the provision of-air bypass system and the use of To control the use phase An open-loop control-to-air valve control method that is not affected by changes in battery voltage or coil temperature or pressure drop has its advantages, that is, it is not only relatively inexpensive, but also has a fast response time. Therefore, an object of the present invention It is an improved control between the air of an engine. Basically, the present invention provides a control flow to an air bypass line that has an intake throttle valve to pass over, and to support the bypass to control the flow. A method of air flow through an engine through which air passes, the method including opening an empty It valve as a function of a crank angle of the engine at at least some points of the negative range of operation of the bow. Good 'air valve is driven between known positions, such as fully open and fully closed. The best' air valve is based on one of the engine's top dead center (TDC). This paper size thorn cap_fresh (cns) The secret of A4 495579 A7 B7 The employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, the consumer co-operative printed on the printing press, the invention description (the function of the position opens synchronously.… Conveniently, the air was That is, it is in the open or closed position. That is, unlike a stepper motor that is basically set to change the position characteristics of the air valve, the air valve according to the method is fully opened or closed. Preferably, the air valve It is controlled by a solenoid and can form part of an electromagnetic device in which the activation of a solenoid coil causes the valve to be opened. Conveniently, the air bypass line is configured to bypass the engine's intake throttle. Preferably, the air valve is provided in a slow speed control device of the engine. Preferably, an open-loop control of the airflow can be provided by using a method of controlling the airflow to the engine. That is, without using MAP induction H, airflow meters, etc Therefore, it is not necessary to perform feedback control of the air bypass valve. Synchronous operation of the air valve related to the crank angle position of the engine crankshaft allows the air valve to open when a conventional pressure difference exists in the wide air bypass. This is because the pressure in the intake system is cyclic and repeatable as a result of engine cycle operation. Therefore, the opening of the air valve can be timed to correspond to one of the engine's steam-gas exchange times. In particular, the opening of the air valve can be synchronized with the air intake time of the engine. Regarding this, the 'air valve may be periodically opened at a predetermined engine crank angle. And it can be timed to close at the engine crank angle. In this way, when the engine speed drops, the effective time of q opening of the air valve can be increased to prepare a device for internal proportional control. Alternatively, the ' air valve may be timed to open at a predetermined engine crank angle and closed at a predetermined time. Conveniently, the opening angle, closing angle, and / or air opening of the paper are applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm). C Please read Jiang Yi Shi on the back to fill in this page ) -------- ^ --------- # 6 V. Description of the invention (4) Wj 鲔 孖 is in the management engine operating system, the main electronic control unit (ECU) ; Figure: In the table. These air chambers and their operation can be facilitated = other appropriate engine operating parameters are called such look-up maps or are therefore not used in the field of engine management as it is customary, so their details will not be repeated. : More advantageously, the crank angle between air opening and closing, and / or air & as a function of engine degree. When the engine grips the cold part of the body, the engine temperature can conveniently be determined by the temperature of the coolant. This method is applicable to the main control conditions of the slow-rotation connection of the engine when the engine is turning slowly. Alternatively, the method can be used at the start of the engine so that additional air can be provided to the engine at the start of the engine. In a four-stroke valve injection engine, the air valve can be in each ring, or 720 per revolution of the crank. Open and close twice. In the latter case, the timing of taking must be established to ensure that the opening of the air valve matches the time of the gas exchange of the cylinder. Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economics Repeatable accuracy of the airflow can be achieved by opening the air valve at a known pressure difference in the engine intake air. Because this pressure difference can be repeated, the airflow to the engine is reliably controlled as a function of engine crank angle. Conveniently, the known pressure difference when the air valve is opened is preferably vocal. When the airflow in the intake system is audible, the flow rate is ultimately determined by the valve area or the opening through which the airflow passes. That is, once the flow rate is vocal, any increase in pressure difference does not affect the flow rate. Therefore, the operation of the air valve under this vocalization condition makes the airflow across the valve substantially time-based. Have heard

V. Description of the invention (Chinese A7 / brother across the port 'will occur when the pressure difference on a valve is 1.895 or greater than 1.895. It is not like an air valve driven by a PWM signal. The drive is closed / closed, and its opening and closing are synchronized with the engine position and speed. When the air valve is operated in one, open / closed mode, the air passing through the air bypass line is determined by the time that the valve remains open. That is, The operation of the air is analogous to the operation of a pressure-time meter device such as a fuel or air delivery injector. Therefore, the control of the air valve operation, such as ECU chart control, can balance any effect on the opening and closing time, and the air Wide battery switching time and / or coil temperature change. In this way, even when certain parameters are not fixed, the airflow to the engine can be accurately controlled in an open loop manner. In addition, the control method can consider the existence Any difference between the opening time of the solenoid coil and the mechanical opening point of the air valve. The method of the present invention can also be used for two- and four-stroke engines, whether or not The related fuel system enables the engine manifold to be injected or directly injected, and is configured to control the air flow to the engine. In addition, 'the method is applicable to single-fluid and dual-fluid fuel injection systems. An example of such a two-fluid injection system is disclosed in The applicant's U.S. Patent No. 4934329 and PCT Application No. PCT / AU98 / G1_5 Tiger Disclosure are incorporated herein by reference. ^ In addition, the method of air flow control is applicable to single-cylinder and dual-cylinder engines, but It is particularly suitable for a single-cylinder engine that can save a higher cost. According to another feature of the present invention, an air intake system for the engine is provided. The 4 air intake system includes an air intake throttle valve across the throttle valve. An official bypass line for air, as well as support on the bypass line to control the passage of air through its paper. Applicable to China National Standard (CNS) A4 (210 X 297 mm)

Tumi U valve, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

5. Description of the invention (6) The air valve is opened as a function of a crank angle of the engine at at least some points within the operating load range of the engine. Preferably, the air bypass line crosses the intake throttle. Preferably, the air valve is opened synchronously with respect to a crank angle of a position of a crank shaft of the engine. According to another feature of the present invention, an electronic control unit (ECU) is provided for controlling an air bypass line including an intake throttle, bypassing the throttle, and supporting the bypass line to control passage therethrough. An air of air-the internal combustion engine _ internal combustion engine; ECD is suitable for opening the air bypass 阙 as a function of one of the engine's crank angles at at least some points within the operating load range of the engine. Preferably, the 忒 air bypass valve is a solenoid valve, and the Ecu is adapted to activate the solenoid when the valve is opened. Preferably, the ECU is adapted to open the air bypass valve at a crank angle relative to a top dead center position of a crank of the engine. Preferably, the engine further includes a crank position device; the ECU is adapted to receive crank position data from the crank position device to open the bypass valve using the crank angle-based data. Hereinafter, it will be explained by means of a drawing showing a preferred embodiment of the present invention. However, since other embodiments are also possible, the embodiments in the drawings should not be construed as going beyond the above general description of the invention. In the drawings: Figure 1 is a schematic diagram of a motorcycle, in which an air valve is used; Figure 2 is a schematic diagram of a four-stroke Mars combustion engine with a steam valve. This paper has passed the Chinese National Standard (CNS) A4 specification. (21〇X 297 mm) 495579 5. Description of the invention (7 pictures, which has a wide air suitable for the motorcycle of Figure 1; ~ Figure 3 shows the opening time of the air valve in the engine of Figure 2 'FIG. 4 is a diagram showing the basic relationship between the electrical excitation of a solenoid and the mechanical start of an associated valve element. This embodiment relates to one of the inlet manifolds of an internal combustion engine. Operation 'causes the air flow to bypass the throttle valve to the engine. This embodiment uses a manifold pressure wave that is mainly stable when circulating, as a fixed operating condition. The stability in the manifold pressure wave allows the valve to be connected to the crank angle The specific embodiment operates synchronously at the crank angle operation chamber, in which the sonic airflow is generated in the valve, because this can promote the pressure time of the airflow flowing into the engine. This embodiment is particularly suitable for use with meters. In terms of capacity, it is an engine with a manifold. This engine basically has a manifold with a capacity less than one or two engine scans. A single-cylinder engine basically has this as other engines with separate inlet slots for each cylinder. This is a small engine inlet tube. Into a Qi -------- 1 --------- (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In order to better understand the environment used in the embodiment, Figures 1 and 2 will be described below. Figure 1 is a motorcycle 300, which is a representative small engine application, in which an air bypass valve can be used The motorcycle has a front wheel 305 and a rear wheel 310, and the wheel supports a chassis and a related panel 315 at a distance from the road surface 32. The chassis and panel 315 include a seat that basically supports two riders. It consists of a knight zone 325. The knight zone 325 is positioned on the rear wheel 310. An engine and related driving mechanisms 33 are set up in the zone

This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 printed by the Intellectual Property Bureau of the Ministry of Public Economics and Employees' Cooperatives). 5. Description of the invention (8 325 and the middle of the rear wheel 310. The handle bar 335 is erected on the chassis and The panel 315 also supports the shock absorber for positioning the front wheel 305 on the motorcycle 300. In operation, a knight rides on the knight area and positions its feet on the chassis 350 and the bottom plate 350 of one of the related panels 315. These foot stops 345 are positioned at the bottom of the handlebar 335 and in the middle of the knight section 325. The handlebar 335 includes a mechanical throttle valve starting mechanism that can be turned by the rider by hand. The handlebar 335 also includes starting and positioning adjacent to the engine and related drive mechanisms. An ignition switch for a circuit between a battery of 330 and an electronic control unit and other electric components such as a fuel pump and headlight 355. Delta Motorcycles has a range between 50 ° (: (: to 100%) A small-capacity single-cylinder fuel injection engine is used, but a larger-capacity engine can also be used. A fuel tank can be positioned below the knight zone 325. A fuel pump supplies fuel in the tank to the engine. A fuel supply circuit that communicates with the injectors. Now refer to FIG. 2, which is a diagram of an engine and a related fuel supply circuit for the motorcycle of FIG. 丨. The engine and the related fuel system emit a single cylinder for the Λ gate. The four-stroke engine 50 is provided with a fuel tank 1 which communicates fuel with a fuel injector by a fuel pump 3 positioned in the fuel tank 1. The fuel supply circuit also includes a fuel pressure regulator 4 and a fuel supply line. 52. The fuel injector 11 supplies fuel to an inlet manifold in accordance with a metering signal received from an engine control unit (ecu) 16. The airflow is provided into the combustion chamber 61 via an air tank 18 and an air filter 19. The air tank 18 and the on-air An inlet manifold 65 between the flow valve 9 and the inlet valve 80 is in fluid communication. When the inlet valve 80 is opened, the inlet manifold 65 is in fluid communication with the combustion chamber. A cam (not shown) opens and closes the inlet valve 80 and For scrap paper, the Chinese National Standard (CNS) A4 specification (210 X 297 public love) is applicable. — — — — — — — — — 1 · 1111111 ^ · 11111111 (Please read the notes on the back first (Fill in this page again) 11: ~> V. A7 B7 Description of Invention (9) Air valve 85. Waste gas valve 85 allows exhaust gas to flow out of the fuel chamber. Fuel injector 11 sprays fuel into the inlet manifold, where The fuel is delivered to the combustion chamber through the airflow of the manifold. The fuel forms a uniform filling in the combustion chamber. The uniformly filled fuel is ignited by a spark plug 12 which is activated by an ignition coil 13 which operates under the control of the ECU 16. Usually A combination of a pressure sensor and a temperature sensor, called a TP sensor, is positioned upstream of the throttle valve 9. The TP sensor is provided to the ECU with atmospheric pressure and temperature signals that can be used for altitude compensation and other control strategies. The TP sensor 7 is an analog sensor, and its signal can be sampled by the ECU 16 through the use of analog conversion technology and digital sampling filtering and counting. The air flow to the engine is controlled by the position of the throttle valve 9. During slow rotation, the throttle valve 9 is closed and a minimum amount of air flows to the engine. When the throttle is fully opened, the engine basically receives the maximum fuel height and operates with a wide, wide open throttle " (WOT) condition. The throttle valve can be manually activated by the operator, and the position of the throttle valve 9 is indicated to the ECU 16 by the throttle position sensor 10. The throttle air bypass valve 8 can be activated so that the incoming air can bypass the throttle valve. In slow-rotation conditions, controlling the amount of air bypassing the throttle allows the engine speed to be controlled. The air bypass valve 8 has a -solenoid valve combination 'controlled by the legs 6 so that it can be in one of two positions, fully open or fully closed. This is obviously different from the PWM control technology of the air flow chamber and the air flow valve, which are mainly stepper motors. Stepper motors and PWM control technology can control the valve opening process (i.e., they allow the valve to partially open, and can control the degree of opening progressively). Power is supplied by the battery 22 and the ignition switch 21, and the small + main J is supplied to the paper size at the time of starting. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public love). --------- --Install " ------- Order --------- (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 12 / y: A7

13 495579 A7

V. Description of the Invention (12) Exhaust 225, followed by an intake stroke with the inlet valve 80 open. The second cycle represents a TDC launch 230, followed by an expansion stroke and then an exhaust stroke. The exhaust valve 85 is opened during this exhaust stroke. The speed counter 220 is set separately from the TDC. The position of the air flowing through the valve 8 is indicated by the air flowing through the valve signal 200. The air flow passing signal includes a step response (3) to the neighboring TDC exhaust 225, which indicates the crank angle at which the air flows through the valve to open and close, and the time when the air flows through the valve to open at the crank angle. The maximum manifold pressure in the inlet manifold is 79 kPa and the minimum inlet pressure is 33 kPa. Atmospheric pressure 215 is about 10 lkpa, so it can be seen that the inlet manifold is partially vacuumed throughout the engine cycle. It can be seen that the maximum pressure difference between the manifold pressure and the atmospheric pressure is in the middle of the bottom or near her. This is also matched with the air exchange time of the engine in the air cylinder 61 of the air intake engine ^ gas_at this time_set to open 'to allow the air to be accurately supplied to the steam cylinder, and the mass airflow will flow to the engine's flow rate within this time Is a function during the opening of the air valve 8. That is, the air valve 8 is maintained for a defined period representing a crank angle of a known amount of air flow to the engine. Because the pressure difference at which the air valve 8 opens is repeatable under a cycle-based crank angle that can be preset for a specific set of engine operating conditions: The airflow from the engine to the engine can be precisely controlled. In the above figure, each of the air valves. Crank angle open—times, or _cycle open_times per engine revolution. Therefore, when the inlet valve 80 is closed, the air valve opens at the crank angle. Other embodiments: every-engine cycle or every 720. Open the air flow through the valve 8 at any time. This requires 495579 A7 and B7 staff of the Ministry of Economic Affairs and Intellectual Property. V. Invention Description (13) Positions are established relative to the control of the air valve 8, so that the opening of the air valve 8 matches the gas exchange time of the cylinder 2. When the air flow in the intake manifold is audio, it is preferred that the air valve 8 is opened. The vocalization condition exists where the pressure ratio across the valve is greater than 1 895, that is, any increase in this pressure ratio does not cause an increase in the wide air flow. During this time, the airflow through the valve 8 is only affected by the opening time of the air valve 8 and the cross-sectional area of the air valve 8. The air flow during this time can then be determined precisely by the principle of pressure time or pressure period. For example, a pressure time principle opens the valve 8 at a set crank angle and supports its open condition for a fixed time. During a pressure period, the air valve is opened at a fixed crank angle and closed at a fixed angle with the opening angle. This measurement controls the open cycle. The open-loop airflow control strategy can be applied to the operation of the engine when the opening and closing time of the flow through the valve 8 is shorter than the speed of the engine. Basically, this condition exists at lower engine speeds, but it is believed that this principle is also valid for higher engine speeds of valves with proper flow zones and response times. The crank angle at which the air valve 8 is opened and the time at which the air valve 8 is opened, or the crank angle at which the air valve 8 is closed, may be a function of engine temperature. When the engine temperature is cold, for example, at the start of the engine, an increased slow speed is required to maintain the engine's stability and strong slow-rotation quality. Therefore, the wide air opening can be controlled to provide extra air when the engine is started. A larger amount of fuel can be supplied by increasing the production gas / melon, resulting in a higher engine speed. Other embodiments are not limited to turning on the flow-through 阙 8 only under audio conditions. Is this paper a standard for China? ^ _ (CNS) A4 specifications⑵. χ 摩 公 ^ i I (Please read the notes on the back before filling out this page) — —Order --------- line 16-

I 495579 five

Prepared? Printed by the Ministry of Intellectual Property Bureau's Consumer Cooperatives A7-B7, Invention Description (14) In some embodiments, a chart can be placed in the ECU 16 to start the air flow through the valve at a predetermined crank angle. During the engine calibration, the airflow at each point in the chart is measured or calculated. Therefore, a known amount of air can be allowed to enter the cylinder 61 under the operating conditions of the engine. The height of the fuel entering the engine is preferably determined in proportion to the ideal ratio of the amount of fuel allowed. Basically these embodiments are used under slow-running conditions to control the speed of the closed cycle. Closed-loop speed control under slow rotation requires the engine's slow rotation speed to be controlled by II, and the engine load can be changed so that the engine speed is maintained at a predetermined level. In the closed-cycle slow-rotation condition, the throttle valve 9 is basically closed, and basically the air flow through the valve 8 is opened and closed at the same crank angle of each engine cycle to allow a known amount of air to enter the combustion chamber. However, if the ECU 16 detects an increase in engine speed, the time for the air flow through the valve to open will basically decrease at the next revolution of the engine. Basically, the time can be reduced by changing the crank angle when the air flow is closed through the valve 8, but it is also possible to change the starting angle or the starting angle and the closing angle. By reducing the time that the air flows through the valve to open, the airflow into the engine can be reduced by a known amount. When the amount of air is reduced, the amount of related fuel supplied by the fuel injector 11 to the engine is reduced, so that the air-fuel ratio in the cylinder is close to the ideal ratio. The reduced fuel height reduces the power delivered to the engine, which in turn reduces the engine speed. Similarly, if the engine speed drops below a predetermined height, the time for air flow through the valve to open can increase 'resulting in increased airflow, and an increase in the height of the fuel entering the engine. This increases the speed of the engine. This control of the closing cycle speed can be performed because the time for the air flow through the valve 8 to open and close under conditions of at least slow rotation is very small compared to the time for one engine to turn around. This allows for circulation as ^ --- (Please read the precautions on the back before filling this page) «Thread · This paper size applies to China National Standard (CNS) A4 (210 X 297 public love) 17 5 15 Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, the Consumer Cooperatives, printed a description of the invention (basic and changed, y4, the flaw in one's heart ^ L can be achieved by changing the opening time of the air valve 8 in%). ^ On the ground, with a stepper motor The main valve and time two 'technology has no small response compared to the slow ^ one engine cycle: and its Γ' wide engine cycle has a relatively long time frame compared to them. Is left open). Γί, the control of the air flow into the engine based on the cycle cannot be precisely controlled like the step-by-step PWM control valve based on the stepping motor of this example. Another advantage of starting air flowing through the valve 8 is that it can be fully opened or closed. ^ Battery voltage balancing technology can be used. Figure 4 shows the occurrence of the spiral. A typical basic delay between the electric start of the solenoid indicated by the official start signal 405 and the mechanical force start caused by the associated valve element indicated by the valve start signal 0. The delay of the valve start signal 400 relative to the solenoid start signal 405 is the opening time 44. The opening time is the time between the electrical excitation of the solenoid and the solenoid at the solenoid start angle 410 and the start of the movement of the solenoid-related valve element on the mechanical start angle side. Similarly, for example, a delay for the closing time 455 occurs between the stop of the solenoid at the solenoid end angle 415 and the start of the closing of the associated valve element at the mechanical end angle 430. It takes a limited time for the valve element to fully open, as shown in open slope 460, and fully closed, as shown in closed slope 465. To start and stop air flow through the valve 8 at a predetermined crank angle, the solenoid is excited by a solenoid start signal 405 of a crank angle earlier than TDC before the valve element opens to support the desired crank angle. This earlier crank angle corresponds to the valve's open time 440 or closed time 455. As a result, the solenoid start angle is 41. This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm).

-IM, .----- ^ --- r ---- 18 495579

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Calculated based on the open time 440 and engine speed. The valve opening time 440 and closing time depend on the battery voltage. Electricity and voltage can be monitored by ECU16. Therefore, during engine calibration, a graph of ecu ^ off values can be constructed, detailing the opening time 440 and closing time 455 as the battery voltage changes. Several advantages are achieved using air valves controlled in a manner similar to fuel injectors, including fast response times and high accuracy over conventional combinations. The response time of the synchronous air valve of the present invention is based on each cylinder cycle, unlike the slow flow rate of a stepper motor. This can achieve better load resistance and enhanced cycle control. The method of turning light can also balance the difference in battery voltage and ensure that the airflow can be controlled and repeated without any expensive airflow measurement and feedback combination. In addition, because the air valve 8 can be opened when the pressure difference is known to be audible, when the closed valve is controlled for slow rotation and can be controlled by the air valve which is part of the _slow speed control device, a simple conversion technique can be applied to balance Between the valves: Different. Although the present invention has been disclosed above with a four-stroke single-cylinder engine, it must be understood that the present invention can also be applied to a two-stroke engine and a " Gordo cylinder engine. Improvements and changes that are apparent to those skilled in the art are included within the scope of the invention as defined by the scope of the patent application. This paper size applies to Chinese national standards (3)

^ — (Please read the notes on the back before filling out this page) Order ·· -line. 19 495579 A7 B7 V. Description of the invention (17) The reference number of the printed components of the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1 Fuel tank 66 Encoder wheel 2 Cylinder 67 Flywheel 3 Pump 80 Inlet valve 4 Regulator 85 Waste valve 7 Sensor 205 Pressure signal 8 Valve 210 Crank angle signal 9 Throttle valve 215 Atmospheric pressure 10 Sensor, 220 Tachometer 11 Fuel injector 225 TDC exhaust 12 Mars plug 230 TDC launch 13 Ignition coil 235 Step response 15 Sensor 300 Motorcycle 16 ECU 305 Front wheel 18 Air box 310 Rear wheel 19 Filter 315 Panel 21 Ignition switch 320 Road surface 22 Battery 325 Cavity zone 24 Tooth 330 Drive Mechanism 50 Engine 335 Hand lever 51 Supply line 340 Shock absorber 60 Piston 345 Footrest 61 Combustion chamber 350 Base plate 65 Manifold 355 Headlight ----- i ------------ Order-- ---------- Line · (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) -20-495579 A7 B7 V. Description of the invention (18 400 405 410 415 420 430 440 455 Start signal Start signal Angle Angle Angle Angle Open time Close time 460 Slope 465 Slope

Printed by the #Ministry of Intellectual Property Bureau Employees' Cooperative Cooperative. This paper is printed in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) ^ 1-H ϋ ϋ »I ϋ ϋ« ^ 1 n 111 I «II n ϋ ϋ ϋ 一 0, I ϋ n ϋ > 11 — > in I (Please read the notes on the back before filling this page) 21

Claims (1)

Among them, the air valve drive is known in which the air valve is fully opened 495579 V. Patent application scope No. 9110110736. Patent application application. Patent scope amendment. May 17, '91. 1 control gas / melon, L to one engine The method has an inlet throttle valve, bypassing a wide air bypass line to support an air valve on the bypass line to control the passing air, the method includes: opening the air valve as an engine A function of the crank angle of the engine at at least some points within the operating load range. 2. The method as described in item 1 of the patent application. 3. Drive between the method of patent application No. 2 and the fully closed position. 4. The method according to item 2 or 3 of the scope of patent application, wherein the air gap is opened synchronously according to a function of a top dead point (TDC) of a crankshaft of an engine. 5. The method according to item 4 of the scope of the patent application, wherein the synchronous opening of the valve and the crank angle of the engine occurs continuously in several engine cylinder cycles. 6 · = Please specialize in the method surrounding item 5, wherein the air valve The timing is opened at the crank angle of the pre-sigh and the timing is closed at the engine crank angle of the other setting. For example, the method of claim 5 of the patent scope, wherein the air valve timing is opened at the predetermined engine crank angle, and the _ Shut it down after a preset time. 8. The method of item 5 in the patent application, where the crank angle of the air valve opening and closing, and the time of the air radon opening are controlled as a function of engine temperature. Method of range item 8, where the engine temperature is conveniently determined by the paper size (⑽Α4⑵⑵0 × 297mm) .......:…: -Interpretation; (Please read the notes on the back before filling this page) • Order 丨 -22- ‘Where the air is controlled by a solenoid’ ’Where the solenoid coil is started The temperature of the coolant when the engine is cooled is determined by the coolant temperature. For example, the method in the scope of patent application No. 5 in which the valve is empty and forms part of the electromagnetic device, causing the valve to be opened. The method of Item 5 of the μ μ patent scope, wherein the air bypass line is configured to cross the engine's intake throttle. • * Method in item 5 of the middle% patent range, in which the air valve is provided in one of the engine's slow-rotation speed control devices. The method of U.2 for the scope of patent application, in which the method of controlling the air flow into the engine is implemented to prepare for the open loop control of the air flow. 14. If applying for the full-time method of item 丨 or 13, the method is used when the engine is turning slowly, and the main control of the slow turning speed of the engine is provided in the air.丨 5. If the method of the scope of patent application No. 1 or 丨 3, wherein the method is used when the engine is exhausted, to provide additional air at the beginning of the engine to lead to the method of the scope of the patent claim 5, Among them, when a four-stroke valve is used to eject the engine, the air valve is 720 per ignition cycle or every crank rotation. Opened and closed at times. 17. The method according to item 16 of the scope of patent application, wherein 11) (: The calculation of time is established so that the opening of the air valve matches the gas exchange time of the cylinder. • An air intake system of an engine ”and the system includes a Intake throttle valve, an air bypass line bypassing the throttle valve, and supporting the bypass line to 1 ~ w anti-common Chinese national standard (4) A4 specification (210X297 mm) — -23-/ y A8 B8 C8 D8, patent application scope control one of the air passing through it is wide, in which the air valve is opened for 4 in A function of one of the engine's crank angles at at least some points within the operating load range of the engine. 19. The air intake system of claim 18, wherein the air bypass line crosses the air intake throttle. 20. The air intake system of claim 18 or 19, wherein the air valve opens synchronously based on a crank angle relative to the TDC position of a crankshaft of an engine. 21. An electronic control unit (ECU) for controlling an internal combustion engine having an intake system, wherein the intake system includes an intake throttle valve, an air bypass line bypassing the throttle valve, and supporting An air line on the bypass line is used to control the air passing through it; the electronic control unit is adapted to open the air bypass valve as a function of a crank angle of the engine at at least some points within the operating load range of the engine. 22. The electronic control unit according to claim 21, wherein the air bypass valve is a solenoid valve 'and the electronic control unit is adapted to activate the solenoid when the room is opened. 23. If the electronic control unit according to item 21 of the patent application scope, the electronic control unit is adapted to open the air bypass valve based on a curved angle with respect to the top dead angle of a crank shaft of the engine. 24. The electronic control unit of claim 21, 22 or 23, wherein the engine further includes a crankshaft position device; the electronic control unit is adapted to receive crankshaft position data from the crankshaft position device and use the data Open the air bypass valve based on the crank angle. Fresh (⑽Μ 胁 (210X297mm 丨 — · :: !! ...... Order ............... ΦΓ (Please (Please read the precautions on the back before filling this page) -24-495579 VI. Patent Application Scope A motorcycle with an engine equipped with a throttle valve and an air bypass valve, where the air bypass width and the crank angle of the engine Operate synchronously. "For example, if the motorcycle is claimed in item 25 of the patent, the synchronous operation of the air bypass valve uses the air bypass valve below the open or closed position. The motorcycle of item 25 or 26, wherein the airflow flowing into the engine is controlled on at least a part of the operating range of the engine in the open circuit. 28. The motorcycle of item 25 of the patent application, wherein the engine rotates slowly The speed is controlled by an open circuit using an air flow under a closed circuit. 29. For a motorcycle applying for item 25 or 28, the air bypass valve on at least a part of the operating range of the engine is adapted to be smaller than the engine. Rotate between open and closed positions for a period of time. The motorcycle with the scope of patent application No. 29, in which the wide time allowed to move to the engine is allowed to change on a cycle basis. 31. For example, the miscellaneous vehicle with scope of patent application No. 25 or 28, where the air side The road valve can balance the voltage of the battery by applying the closed set value of the start angle and the end angle by the solenoid power. 32. For example, the motorcycle of the 3Q item in the patent scope, wherein the air bypass room can be adjusted by The application of the solenoid power to stimulate the start and end angles to close the set value can balance the battery voltage. 33. The method of item 5 of the patent application, wherein the method is used when the engine starts to rotate, so that it can be set at the start of the engine Extra air to the engine. This paper is suitable for size _ 绪 准 (_ A4 size ⑽χ297 公 爱)