WO2017121397A1 - 电动油门装置及其控制系统 - Google Patents

电动油门装置及其控制系统 Download PDF

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Publication number
WO2017121397A1
WO2017121397A1 PCT/CN2017/071177 CN2017071177W WO2017121397A1 WO 2017121397 A1 WO2017121397 A1 WO 2017121397A1 CN 2017071177 W CN2017071177 W CN 2017071177W WO 2017121397 A1 WO2017121397 A1 WO 2017121397A1
Authority
WO
WIPO (PCT)
Prior art keywords
throttle
controller
power unit
rotating shaft
electric
Prior art date
Application number
PCT/CN2017/071177
Other languages
English (en)
French (fr)
Inventor
孔钊
郭宁
Original Assignee
苏州科瓴精密机械科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州科瓴精密机械科技有限公司 filed Critical 苏州科瓴精密机械科技有限公司
Priority to EP17738210.8A priority Critical patent/EP3415741B1/en
Priority to US16/070,357 priority patent/US20190024612A1/en
Publication of WO2017121397A1 publication Critical patent/WO2017121397A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/067—Introducing corrections for particular operating conditions for engine starting or warming up for starting with control of the choke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/08—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically
    • F02M1/10—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling becoming operative or inoperative automatically dependent on engine temperature, e.g. having thermostat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
    • F02D2011/102—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles at least one throttle being moved only by an electric actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/06—Small engines with electronic control, e.g. for hand held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/02—Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being chokes for enriching fuel-air mixture

Definitions

  • the present invention relates to an electric throttle device and a control system therefor.
  • a portable gasoline engine for garden tools includes an air filter, a choke, a carburetor, an intake pipe, and a throttle.
  • the main function is to pass air and fuel through a carburetor at a certain ratio.
  • the vaporization is mixed into a combustible gas that enters the combustion chamber through the intake passage.
  • the prior art intake system is that air enters the throat of the carburetor through an air filter and a choke valve, and the air filter functions to filter air, and the choke valve is used to regulate and control the flow of air into the carburetor.
  • the throat of the carburetor there is a means for regulating the flow of fuel into the throat. Air and fuel are at the throat. The venturi effect causes the fuel to vaporize and mix with the air to form a combustible mixture. This combustible mixture then The carburetor and intake duct and the intake valve ultimately enter the combustion chamber.
  • the technical problem to be solved by the present invention is to provide an electric throttle device and a control system thereof, which are simple and convenient to operate, and have no skill and experience requirements for the operator, so that the user's use experience is better, and the product is beneficial.
  • a first technical solution of the present invention is: an electric throttle device for use in a portable gasoline engine, wherein the portable gasoline engine includes a body, a cylinder disposed in the body, and a side disposed on the cylinder and provided with an intake passage a carburetor device comprising a rotating shaft and a throttle mounted on the rotating shaft, the throttle is slamming or closing the intake passage, the electric throttle device further comprising: a power unit, a transmission unit connected to the power unit, and a controller, The transmission unit is coupled to the rotating shaft, and the controller is provided with a circuit driving module for driving the movement of the power unit to control the closing or snoring of the throttle.
  • the transmission unit cooperates with one end of the rotating shaft through the throttle lever, and the throttle rotates coaxially with the rotating shaft.
  • the transmission unit includes a rack, and a gear that cooperates with the rack and is coupled to the output of the power unit.
  • the power unit is a motor, or a combination of a motor and a reduction gearbox, or electromagnetic, or pneumatic.
  • the motor is a DC or AC motor that can be reversed.
  • the electric throttle device further includes a temperature sensor connected to the controller, and a damper control device connected to the controller, wherein the damper control device includes a damper shaft and a damper mounted on the damper shaft, and the damper is slammed or closed.
  • the air passage, and the damper shaft is parallel to the rotating shaft.
  • the controller adopts a hot start mode and opens the damper when the ambient temperature exceeds a preset value, and adopts a cold start mode and closes the damper when the ambient temperature is lower than a preset value.
  • the damper shaft is driven by another power unit, wherein the damper is located at the intake end of the intake passage, and the throttle is located at the outlet end of the intake passage.
  • the electric throttle device further includes a rotating end and an unlocking end respectively located at two ends of the rotating shaft, wherein the rotating end is fixed with a throttle lever, and the unlocking end cooperates with the damper control device, and the throttle slamming drives the damper to snoring .
  • a second technical solution of the present invention is: an electric throttle control system including a rotating shaft disposed on a carburetor, and a throttle disposed on the rotating shaft and opening or closing an intake passage of the carburetor
  • the utility model comprises: a power unit, a DC power source for supplying energy to the power unit, a transmission unit connected to the power unit drive, a controller for controlling the power output of the power unit, and a controller for wirelessly communicating with the controller, wherein the controller A circuit drive module that drives the power unit to move and controls the closing or snoring of the throttle, and a wireless communication module that receives the wireless signal of the manipulator.
  • a third technical solution of the present invention is: an electric throttle control system including a rotating shaft disposed on a carburetor, and a throttle disposed on the rotating shaft and opening or closing an intake passage of the carburetor
  • the utility model comprises: a power unit, a DC power source for supplying energy to the power unit, a transmission unit connected to the power unit drive, a controller for controlling power output of the power unit, and a controller for communicating with the controller, wherein the controller is provided with a drive power unit
  • the circuit drive module that moves and controls the closing or slamming of the throttle, the manipulator and the controller are separated from each other, and the two are controlled by a signal line connection.
  • the present invention controls the power unit (steering gear) through the controller and combines the temperature sensor to control and adjust the throttle of the damper, and realizes the linkage between the throttle and the damper to control the flow of air entering the carburetor, and also passes
  • the controller controls the steering gear to control and adjust the fuel flow regulating device on the carburetor to adjust the fuel flow of the carburetor, so that the fuel-air mixing ratio can be freely adjustable under various states, but the prior art cannot Freely adjustable, the advantage of this freely adjustable is that the fuel concentration can be adjusted as needed. For example, after the cold start, the fuel concentration can be increased to facilitate the start of the gasoline engine, and the fuel can be freely set under various load conditions. Concentration to improve fuel economy and emission reduction.
  • the invention can realize the automatic closing or opening of the throttle and the damper, the operation is simple and convenient, and the operator has no skill and experience requirements, the structure is simple, the reliability is high, and the reaction is sensitive, so that the user experience is better, and the product is beneficial. Popularization and promotion.
  • FIG. 1 is a cross-sectional view showing a first embodiment of the present invention
  • FIG. 3 is an exploded view of FIG. 2;
  • Figure 4 is a cross-sectional view of Figure 2 in an idle state ;
  • Figure 5 is a cross-sectional view of Figure 2 in a high speed state
  • FIG. 6 is a circuit function block diagram of a second embodiment of the present invention.
  • FIG. 7 is a circuit diagram of a controller in the present invention.
  • FIG. 8 is a circuit diagram of a power module in the present invention.
  • FIG. 9 is a circuit diagram of a high voltage ignition mechanism of the present invention.
  • FIG. 10 is a circuit diagram of a damper and a throttle control mechanism according to the present invention.
  • FIG. 11 is a circuit diagram of an electric start control mechanism of the present invention.
  • the present invention provides a first embodiment of an electric throttle device for use in a portable gasoline engine, wherein the portable gasoline engine includes a body 10 and a cylinder disposed in the body 10. 12, a piston 14 disposed in the cylinder 12, a crankshaft 16 coupled with the piston 14, a mailbox 20 disposed on the body 10, a carburetor 30 disposed on the side of the cylinder 12 and having an intake passage 32, and a setting A damper control device 40 on the carburetor 30, an electric throttle control device 50 disposed on the carburetor 30, the electric throttle device 50 includes a rotating shaft 52 and a throttle 58 mounted on the rotating shaft 52, and the throttle valve 58 is slammed or closed.
  • the intake passage 32, the electric throttle device 50 further includes: a power unit 60, a transmission unit that is drivingly coupled to the power unit 60, and a controller, wherein the transmission unit is coupled to the rotating shaft 52, and the controller is provided with a circuit for driving the movement of the power unit
  • the module is driven to control the closing or snoring of the throttle 58.
  • the transmission unit cooperates with one end of the rotating shaft 52 through the throttle lever 68, and the throttle 58 rotates coaxially with the rotating shaft 52.
  • the transmission unit includes a rack 66 fixed to the throttle rod 68, and a gear 64 that cooperates with the rack 66 and is connected to the output of the power unit 60.
  • the transmission unit can directly cooperate with one end of the shaft, and can also realize the present. Purpose of the invention.
  • the rack and pinion transmission structure adopted in the transmission unit of the present invention is simple and reliable, and low in cost, and can also be adopted in the form of a belt, a chain, a hinge, or a pendulum, and the object of the present invention is also achieved.
  • the electric throttle device 50 further includes a temperature sensor connected to the controller, and a damper control device connected to the controller, wherein the damper control device includes a damper shaft and a damper mounted on the damper shaft, the damper is snoring or The intake passage 32 is closed and the damper shaft is parallel to the rotary shaft.
  • the controller adopts the hot start mode and opens the damper when the ambient temperature exceeds the preset value, and adopts the cold start mode and closes the damper when the ambient temperature is lower than the preset value.
  • the damper shaft is driven by another power unit, wherein the damper is located at the intake end of the intake passage 32 and the throttle 58 is located at the outlet end of the intake passage 32.
  • the electric throttle device further includes a rotating end 54 and an unlocking end 56 respectively located at two ends of the rotating shaft 52, wherein the rotating end 54 is fixed with the throttle lever 68, and the unlocking end 56 cooperates with the damper control device, and the throttle 58 snoring drives the damper to open, thereby achieving linkage between the throttle 58 and the damper.
  • the rotating end 54 is at least partially arcuate and is provided with a plurality of fixing holes 59 arranged in an arc shape, wherein a fixing hole 59 is fastened to the end of the throttle rail 68.
  • the power unit 60 is preferably a motor, or a combination of a motor and a reduction gearbox, or electromagnetic, or pneumatic.
  • the motor is preferably a DC or AC motor that can be reversed and reversed. It is also called a steering gear.
  • a DC servo motor is preferred to achieve a small structure, large torque, and programmable control.
  • the carburetor 30 is located at one side of the cylinder 12 and above the tank 20, and the carburetor 30 is connected to the cylinder 12 through a gas passage.
  • a combustion chamber that introduces an oil and gas mixture and burns is disposed in the cylinder 12.
  • the throttle 58 is fixed to the rotating shaft 52 and is rotatable with the rotating shaft 52, and the rotating shaft 52 is installed in the intake passage 32 inside the carburetor 30.
  • the controller controls the power unit 60 to operate, and drives the gear 64 to rotate through the output shaft 62, thereby driving the rack 66 to linearly move, thereby driving the throttle lever 68 to linearly move, due to the throttle lever 68 and the rotating end 54
  • the rotating end 54 drives the rotating shaft 52 at the center thereof to rotate in the same direction, so that the throttle 58 is in the snoring position, and then the unlocking end 56 causes the damper to interlock and increase the air intake amount, thereby the gasoline engine enters the high speed state and realizes the damper control.
  • Automatic control of the unit and electric throttle unit When the gasoline engine is in an idle state, the throttle 58 is in the closed position, the controller controls the power unit 60 to operate, and drives the gear 64 to rotate through the output shaft 62, thereby driving the rack 66 to linearly move, thereby driving
  • the present invention further provides a second embodiment of an electric throttle control system including a power source, a power module connected to the power source and used for step-down, connected to the power module, and controlling the power.
  • a controller for unit operation a temperature sensor connected to the controller, a damper control mechanism connected to the controller, a throttle control mechanism connected to the controller, an electric start control mechanism connected to the controller, and a high voltage ignition connected to the controller
  • the high voltage ignition mechanism includes components such as an ignition coil and a spark plug.
  • the power source is preferably a detachable rechargeable battery, more preferably a lithium battery, and provides energy to the power unit
  • the controller is a PLC controller, and the controller includes at least a circuit driving module connected to the motor, a temperature sensing module, and An angle module for controlling the rotation angle of the damper, wherein the controller has a main chip circuit, and the circuit structure thereof is specifically referred to FIG. 7.
  • the internal circuit of the power module is specifically shown in FIG. 8, and the circuit structure of the high-voltage ignition mechanism is specifically shown in FIG.
  • the circuit structure of the damper and the throttle control mechanism is specifically shown in FIG.
  • the circuit structure of the electric start control mechanism is specifically shown in FIG. Therefore, the ambient temperature is measured by the temperature sensor.
  • the fuel concentration in the fuel mixture sucked into the combustion chamber is increased, that is, the amount of air sucked into the carburetor is reduced.
  • the controller automatically controls the rotation of the motor to automatically close the damper.
  • the damper and throttle are automatically opened again.
  • the whole process is simple and convenient, and the startup state of the gasoline engine can be automatically set in various starting environments, and the startup is reduced. ⁇
  • the operator's intervention in the start of the gasoline engine reduces the labor intensity of the operator.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)

Abstract

一种电动油门装置及其控制系统，用于便携式汽油机上，其中便携式汽油机包括机体、设置在机体内的气缸、以及设置在气缸一侧且设有进气通道的化油器，该电动油门装置包括转轴和安装在转轴上的油门，油门打开或关闭进气通道，该电动油门装置还包括：动力单元、与动力单元传动连接的传动单元以及控制器，其中传动单元与转轴配接，而控制器设有驱动动力单元运动的电路驱动模块以控制油门的关闭或打开。该电动油门装置实现油门与风门联动及自动关闭或开启，燃油和空气的混合比在各种状态下自由可调，操作简单方便，而且对操作者没有技能和经验要求，结构简单、可靠性高、反应灵敏，从而使用户的使用体验更好，利于产品的普及和推广。

Description

说明书 发明名称：电动油门装置及其控制系统 技术领域
[0001] 本发明涉及一种电动油门装置及其控制系统。
背景技术
[0002] 目前用于园林工具的便携式汽油机， 其进气系统包括空滤器、 阻风门、 化油器 、 进气管以及油门等零部件， 主要作用是将空气和燃料通过化油器按一定的比 例的汽化混合成可燃烧的气体， 通过进气通道进入燃烧室。 现有技术的进气系 统是空气通过空滤器和阻风门进入化油器的喉口， 空滤器起过滤空气的作用， 阻风门用于调节和控制进入化油器的空气流量的作用， 化油器在化油器的喉口 处有调节进入喉口燃油流量的装置， 空气和燃油并在喉口处， 由于文丘里管效 应使燃油汽化并与空气混合成可燃混合气， 此可燃混合气然后通过化油器和进 气管道以及进气门最终进入燃烧室。
[0003] 在便携式汽油机启动吋， 特别是在环境温度较低吋， 为便于启动汽油机需要将 吸入燃烧室内的燃油混合气中的燃油浓度加大， 即一方面需要增加化油器的燃 油流量， 另一方面则需要减少吸入化油器的空气量。 而现有减少吸入空气量的 常用方法是由操作者根据使用环境的温度手动关闭阻风门， 从而达到减少吸入 空气量， 该方法还需要操作者根据环境温度做出判断， 从而由人为操作关闭阻 风门， 同吋在汽油机正常工作吋又必须再度幵启阻风门， 整个过程手动操作相 当繁琐， 而且对操作者有一定的技能要求， 不利于产品的普及和推广。
[0004] 另外用户在使用便携式汽油机吋， 汽油机起动后经常会忘记打幵阻风门而直接 加大油门， 这样会因进气不足而导致汽油机熄火。 虽然国内外很多公司也研制 了油门与风门联动的装置， 但是往往都存在结构复杂、 可靠性较差、 反应不够 灵敏等缺陷。
技术问题
[0005] 本发明要解决的技术问题是提供一种电动油门装置及其控制系统， 操作简单方 便， 而且对操作者没有技能和经验要求， 使用户的使用体验更好， 利于产品的 普及和推广。
问题的解决方案
技术解决方案
[0006] 本发明的第一技术方案是： 一种电动油门装置， 其用于便携式汽油机上， 其中 便携式汽油机包括机体、 设置在机体内的气缸、 以及设置在气缸一侧且设有进 气通道的化油器， 该电动油门装置包括转轴和安装在转轴上的油门， 油门打幵 或关闭进气通道， 该电动油门装置还包括： 动力单元、 与动力单元传动连接的 传动单元以及控制器， 其中传动单元与转轴配接， 而控制器设有驱动动力单元 运动的电路驱动模块以控制油门的关闭或打幵。
[0007] 在第一技术方案的基础上， 进一步包括如下附属技术方案：
[0008] 所述传动单元通过油门拉杆与转轴的一端配合运动， 且油门与转轴同轴旋转。
[0009] 所述传动单元包括齿条、 和与齿条相配合运动且与动力单元输出相连的齿轮。
[0010] 所述动力单元为电机、 或电机与减速箱的组合、 或电磁、 或气动。
[0011] 所述电机为可正反转的直流或交流电机。
[0012] 所述电动油门装置还包括与控制器相连的温度传感器、 和与控制器相连的风门 控制装置， 其中风门控制装置包括风门轴和安装在风门轴上的风门， 风门打幵 或关闭进气通道， 且风门轴与转轴相平行。
[0013] 所述控制器在环境温度超过预设值吋， 采用热启动模式并幵启风门， 而在环境 温度低于预设值吋， 则采用冷启动模式并关闭风门。
[0014] 所述风门轴被另一动力单元驱动， 其中风门位于进气通道的进气端， 而油门位 于进气通道的出气端。
[0015] 所述电动油门装置还包括分别位于转轴两端的旋转端和解锁端， 其中旋转端与 一油门拉杆相固定， 而解锁端则与风门控制装置配合运动， 且油门打幵带动风 门打幵。
[0016] 本发明的第二技术方案是： 一种电动油门控制系统， 其包括设置在化油器上的 转轴、 和设置在转轴上且打幵或关闭化油器的进气通道的油门， 其包括： 动力 单元、 向动力单元提供能量的直流电源、 与动力单元传动连接的传动单元、 控 制动力单元动力输出的控制器、 以及与控制器无线通信的操控器， 其中控制器 设有驱动动力单元运动且控制油门的关闭或打幵的电路驱动模块、 以及接收操 控器无线信号的无线通信模块。
[0017] 本发明的第三技术方案是： 一种电动油门控制系统， 其包括设置在化油器上的 转轴、 和设置在转轴上且打幵或关闭化油器的进气通道的油门， 其包括： 动力 单元、 向动力单元提供能量的直流电源、 与动力单元传动连接的传动单元、 控 制动力单元动力输出的控制器、 以及与控制器通信的操控器， 其中控制器设有 驱动动力单元运动且控制油门的关闭或打幵的电路驱动模块， 操控器与控制器 相互分离， 且两者之间通过信号线连接控制。
发明的有益效果
有益效果
[0018] 本发明通过控制器控制动力单元 （舵机） 并结合温度传感器来控制和调节风门 的幵关， 同吋实现油门与风门联动， 控制进入化油器中的空气的流量， 另外也 通过控制器控制舵机来控制和调节化油器上的燃油流量调节装置， 以调节化油 器的燃油流量， 实现燃油和空气的混合比在各种状态下自由可调， 而现有技术 是不能自由可调， 该自由可调带来的优点是可以根据需要调节燃油的浓度， 如 在冷机启动吋可以加大燃油浓度利于汽油机启动， 同吋也可以在各种负载条件 下自由设置燃油的浓度以提高燃油的经济性和排放值的降低。 另外本发明可实 现油门和风门的自动关闭或幵启， 操作简单方便， 而且对操作者没有技能和经 验要求， 结构简单、 可靠性高、 反应灵敏， 从而使用户的使用体验更好， 利于 产品的普及和推广。
对附图的简要说明
附图说明
[0019] 图 1为本发明第一实施例中的剖视图；
[0020] 图 2为本发明第一实施例中的部分结构图；
[0021] 图 3为图 2的分解图；
[0022] 图 4为图 2处于怠速状态吋的剖视图；
[0023] 图 5为图 2处于高速状态吋的剖视图；
[0024] 图 6为本发明第二实施例中的电路功能模块图； [0025] 图 7为本发明中控制器的电路图；
[0026] 图 8为本发明中电源模块的电路图；
[0027] 图 9为本发明中高压点火机构的电路图；
[0028] 图 10为本发明中风门、 油门控制机构的电路图；
[0029] 图 11为本发明中电启动控制机构的电路图。
本发明的实施方式
[0030] 实施例: 如图 1-5所示， 本发明提供了一种电动油门装置的第一实施例， 其用 于便携式汽油机上， 其中便携式汽油机包括机体 10、 设置在机体 10内的气缸 12 、 设置在气缸 12内的活塞 14、 与活塞 14连动的曲轴 16、 设置在机体 10上的邮箱 2 0、 设置在气缸 12—侧且设有进气通道 32的化油器 30、 设置在化油器 30上的风门 控制装置 40、 设置在化油器 30上的电动油门控制装置 50， 该电动油门装置 50包 括转轴 52和安装在转轴 52上的油门 58， 油门 58打幵或关闭进气通道 32， 该电动 油门装置 50还包括： 动力单元 60、 与动力单元 60传动连接的传动单元以及控制 器， 其中传动单元与转轴 52配接， 而控制器设有驱动动力单元运动的电路驱动 模块以控制油门 58的关闭或打幵。
[0031] 传动单元通过油门拉杆 68与转轴 52的一端配合运动， 且油门 58与转轴 52同轴旋 转。 传动单元包括与油门拉杆 68相固定的齿条 66、 和与齿条 66相配合运动且与 动力单元 60输出相连的齿轮 64， 同样地传动单元可直接与转轴的一端配合运动 ， 也能实现本发明目的。 本发明中传动单元所采用的齿条和齿轮传动结构， 简 单可靠， 成本低， 也可以采用皮带、 链条、 或铰链、 或摆杆形式的传动方式， 也同样实现本发明目的。
[0032] 优选地， 电动油门装置 50还包括与控制器相连的温度传感器、 和与控制器相连 的风门控制装置， 其中风门控制装置包括风门轴和安装在风门轴上的风门， 风 门打幵或关闭进气通道 32， 且风门轴与转轴相平行。 优选地， 控制器在环境温 度超过预设值吋， 采用热启动模式并幵启风门， 而在环境温度低于预设值吋， 则采用冷启动模式并关闭风门。 优选地， 风门轴被另一动力单元驱动， 其中风 门位于进气通道 32的进气端， 而油门 58位于进气通道 32的出气端。 [0033] 优选地， 电动油门装置还包括分别位于转轴 52两端的旋转端 54和解锁端 56， 其 中旋转端 54与油门拉杆 68相固定， 而解锁端 56则与风门控制装置配合运动， 且 油门 58打幵带动风门打幵， 由此实现油门 58和风门的联动。 旋转端 54至少部分 呈圆弧形并设置有呈弧形排列的若干个固定孔 59， 其中一固定孔 59与油门栏杆 6 8—端相卡扣固定。
[0034] 动力单元 60优选为电机、 或电机与减速箱的组合、 或电磁、 或气动。 电机优选 为可正反转的直流或交流电机， 又称舵机， 本实施例中优选为直流伺服电机， 以实现结构小、 扭矩大并可编程控制。
[0035] 化油器 30位于气缸 12的一侧且位于油箱 20的上方， 且化油器 30通过输气通道与 气缸 12相连。 气缸 12中设置有引入油气混合物并燃烧的燃烧室。
[0036] 由此本发明中油门 58固定在转轴 52上， 并可随转轴 52—起转动， 而转轴 52安装 在化油器 30内部的进气通道 32中， 当汽油机处于怠速状态吋， 油门 58处于关闭 位置， 控制器控制动力单元 60工作， 并通过输出轴 62带动齿轮 64转动， 由此带 动齿条 66进行直线运动， 进而带动油门拉杆 68进行直线运动， 由于油门拉杆 68 与旋转端 54相连接， 旋转端 54带动位于其中心的转轴 52—同转动， 实现油门 58 处于打幵位置， 然后解锁端 56促使风门联动打幵， 增大进风量， 由此汽油机进 入高速状态， 实现风门控制装置和电动油门装置的自动化控制。
[0037] 如图 6-11所示， 本发明还提供一种电动油门控制系统的第二实施例， 其包括电 源、 与电源相连且用于降压的电源模块、 与电源模块相连且控制动力单元运转 的控制器、 以及与控制器相连的温度传感器、 与控制器相连的风门控制机构、 与控制器相连的油门控制机构、 与控制器相连的电启动控制机构、 与控制器相 连的高压点火机构、 与控制器相连且与霍尔元件相连的速度反馈机构、 以及与 控制器相连的温度传感器。 高压点火机构包括点火线圈、 火花塞等元件。 其中 电源优选为可拆卸式充电电池， 更优选为锂电池， 并同吋向动力单元提供能量 ， 控制器为 PLC控制器， 控制器至少包括与电机相连的电路驱动模块、 温度传感 模块、 以及控制风门旋转角度的角度模块， 其中控制器内有主芯片电路， 其电 路结构具体参考图 7， 电源模块内部电路具体参考图 8所示， 而高压点火机构的 电路结构具体参考图 9所示， 风门、 油门控制机构的电路结构具体参考图 10所示 ， 电启动控制机构的电路结构具体参考图 11所示。 由此通过温度传感器来测定 环境温度， 一旦环境温度低于预设值， 在启动吋， 将吸入燃烧室内的燃油混合 气中的燃油浓度加大， 即减少吸入化油器的空气量， 由此通过控制器控制电机 旋转来自动关闭风门， 同吋在汽油机正常工作吋又再度自动幵启风门和油门， 整个过程简单方便， 可实现在各种启动环境下自动设定汽油机的启动状态， 减 少启动吋操作者对汽油机启动的干预， 同吋减轻了操作者的劳动强度。
当然上述实施例只为说明本发明的技术构思及特点， 其目的在于让熟悉此项技 术的人能够了解本发明的内容并据以实施， 并不能以此限制本发明的保护范围 。 凡根据本发明主要技术方案的精神实质所做的等效变换或修饰， 都应涵盖在 本发明的保护范围之内。

Claims

权利要求书
[权利要求 1] 一种电动油门装置， 其用于便携式汽油机上， 其中便携式汽油机包括 机体、 设置在机体内的气缸、 以及设置在气缸一侧且设有进气通道的 化油器， 该电动油门装置包括转轴和安装在转轴上的油门， 油门打幵 或关闭进气通道， 其特征在于该电动油门装置还包括： 动力单元、 与 动力单元传动连接的传动单元以及控制器， 其中传动单元与转轴配接 ， 而控制器设有驱动动力单元运动的电路驱动模块以控制油门的关闭 或打幵。
[权利要求 2] 如权利要求 1所述的一种电动油门装置， 其特征在于： 所述传动单元 通过油门拉杆与转轴的一端配合运动， 且油门与转轴同轴旋转。
[权利要求 6] 如权利要求 5所述的一种电动油门装置， 其特征在于： 所述控制器在 环境温度超过预设值吋， 采用热启动模式并幵启风门， 而在环境温度 低于预设值吋， 则采用冷启动模式并关闭风门。
[权利要求 7] 如权利要求 5所述的一种电动油门装置， 其特征在于： 所述风门轴被 另一动力单元驱动， 其中风门位于进气通道的进气端， 而油门位于进 气通道的出气端。
[权利要求 8] 如权利要求 5所述的一种电动油门装置， 其特征在于： 所述电动油门 装置还包括分别位于转轴两端的旋转端和解锁端， 其中旋转端与油门 拉杆相固定， 而解锁端则与风门控制装置配合运动， 且油门打幵带动 风门打幵。
[权利要求 9] 一种电动油门控制系统， 其包括设置在化油器上的转轴、 和设置在转 轴上且打幵或关闭化油器的进气通道的油门， 其特征在于其包括： 动 力单元、 向动力单元提供能量的直流电源、 与动力单元传动连接的传 动单元、 控制动力单元动力输出的控制器、 以及与控制器无线通信的 操控器， 其中控制器设有驱动动力单元运动且控制油门的关闭或打幵 的电路驱动模块、 以及接收操控器无线信号的无线通信模块。
[权利要求 10] —种电动油门控制系统， 其包括设置在化油器上的转轴、 和设置在转 轴上且打幵或关闭化油器的进气通道的油门， 其特征在于其包括： 动 力单元、 向动力单元提供能量的直流电源、 与动力单元传动连接的传 动单元、 控制动力单元动力输出的控制器、 以及与控制器通信的操控 器， 其中控制器设有驱动动力单元运动且控制油门的关闭或打幵的电 路驱动模块， 操控器与控制器相互分离， 且两者之间通过信号线连接 控制。
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EP3415741A4 (en) 2019-06-19

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