WO2017121398A1 - 便携式汽油工具及其电子点火系统 - Google Patents

便携式汽油工具及其电子点火系统 Download PDF

Info

Publication number
WO2017121398A1
WO2017121398A1 PCT/CN2017/071178 CN2017071178W WO2017121398A1 WO 2017121398 A1 WO2017121398 A1 WO 2017121398A1 CN 2017071178 W CN2017071178 W CN 2017071178W WO 2017121398 A1 WO2017121398 A1 WO 2017121398A1
Authority
WO
WIPO (PCT)
Prior art keywords
ignition
ignition system
controller
flywheel
voltage
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/071178
Other languages
English (en)
French (fr)
Inventor
孔钊
陈飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Cleva Precision Machinery and Technology Co Ltd
Original Assignee
Suzhou Cleva Precision Machinery and Technology Co Ltd
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 Suzhou Cleva Precision Machinery and Technology Co Ltd filed Critical Suzhou Cleva Precision Machinery and Technology Co Ltd
Priority to US16/069,557 priority Critical patent/US10704521B2/en
Priority to EP17738211.6A priority patent/EP3404251B1/en
Publication of WO2017121398A1 publication Critical patent/WO2017121398A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N11/0862—Circuits specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/045—Layout of circuits for control of the dwell or anti dwell time
    • F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
    • F02P3/0456—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • F02P5/1502—Digital data processing using one central computing unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • 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
    • 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
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to a portable gasoline tool and an electronic ignition system therefor.
  • the electronic ignition system is one of the key systems.
  • the electronic ignition system mainly includes a flywheel, a boosting device, and a spark plug.
  • the main function is to draw the combustible mixed gas in the combustion chamber from the high-voltage coil.
  • the driven spark plug generates a spark to ignite the combustible gas mixture, causing it to explode and release energy, and the electronic ignition system emits sufficient ignition energy at the most suitable ignition angle to make the gasoline engine of the portable gasoline tool run smoothly and improve efficiency.
  • the electronic ignition system currently in common use includes a magneto, an igniter, an induction coil disposed on the cylinder, and a permanent magnet mounted on the flywheel.
  • the permanent magnet rotates with the flywheel and each ring meets the induction coil fixed on the cylinder. ⁇ , the induced current will be generated in the induction coil (the principle is like a generator) and the higher the flywheel speed, the higher the induced current, the lower the speed, the smaller the induced current, and the current induced by the circuit is amplified to several tens of volts.
  • the voltage is ignited by a spark plug connected to it and placed in the combustion chamber of the gasoline engine.
  • the electronic ignition system has the following disadvantages: The voltage is proportional to the rotational speed. When the rotational speed is relatively low, the induced current is small, and the ignition energy is relatively low. The relationship between ignition ignition, ignition energy and rotational speed is shown in Fig. 1. Show. Moreover, in the downtime phase, the rotation speed is low, the ignition energy can not produce the large spark required for this, which is unfavorable for ignition, which makes the gasoline engine difficult to start and affects the user's use.
  • the technical problem to be solved by the present invention is to provide a portable gasoline tool and an electronic ignition system thereof, which is simple and convenient to operate, and can be started even under the condition of low speed in the downtime stage, so that the user experience is better. Conducive to the popularization and promotion of products.
  • a first technical solution of the present invention is: a portable gasoline tool electronic ignition system including a boosting device, and a spark plug connected to the output of the boosting device, the portable gasoline tool electronic ignition system further comprising : A DC power source, and a controller electrically connected to the DC power source and connected to the boosting device, wherein the controller controls the ignition energy and the ignition advance angle.
  • the boosting device raises an output voltage of the DC power source to an ignition voltage; an output voltage of the DC power source is 6 V to 12 V, and the ignition voltage is 10,000 to 30,000.
  • the ignition voltage is 15,000 yen to 30,000 yen.
  • the boosting device includes a multi-stage boosting component, and an output voltage of the lithium battery pack is raised to an ignition voltage by the multi-stage boosting component.
  • the boosting device includes a primary boosting component and a secondary boosting component; the primary boosting component boosts a voltage from an output voltage of the lithium battery pack to 200 V to 250 V, the second The stage boost component then raises the voltage from 200 V to 250 V to the ignition voltage.
  • the portable gasoline tool includes a body and a flywheel disposed on the body, the electronic ignition system further includes an inductive component disposed on the flywheel or the body, disposed on the body or the flywheel, and acquiring the flywheel speed through the sensing component.
  • a position sensor of information, the controller controlling the ignition energy and the ignition advance angle based on the flywheel speed information.
  • the sensing elements are disposed on the flywheel and are magnets, the number is at least one, and the position sensors are disposed on the body and the number is single.
  • the sensing element is disposed on the flywheel and is iron, the number is at least one, and the position sensor is disposed on the body and the number is single, wherein the position sensor is close to the switch.
  • the DC power source is a lithium battery
  • the controller is a single chip controller.
  • the DC power source is detachable and rechargeable.
  • the electronic ignition system further includes a temperature sensor connected to the controller, the temperature sensor acquires environmental temperature information, and the controller can control the ignition energy and the ignition advance angle according to the ambient temperature information.
  • the boosting device includes an ignition coil.
  • a second technical solution of the present invention is a portable gasoline tool including a body, a cylinder disposed in the body, a piston reciprocable in the cylinder, a crankshaft coupled with the piston, disposed on the body, and The crankshaft drives the rotating flywheel and the electronic ignition system described above.
  • the present invention can accurately control the ignition angle and energy by using a controller designed by a single chip microcomputer; when the load of the gasoline engine changes drastically, the controller can detect the change of the rotational speed through the position sensor, adjust the ignition angle appropriately, and let the gasoline engine work. It is more stable, and the operation is simple and convenient. It can be started even under the condition of low speed in the downtime stage, which makes the user's use experience better and is conducive to the popularization and promotion of products.
  • FIG. 1 is a characteristic diagram of a conventional ignition system
  • FIG. 2 is a perspective structural view of the present invention, in which a part of the housing is removed;
  • Figure 3 is a cross-sectional view of Figure 1;
  • FIG. 5 is a characteristic diagram of the ignition system of the present invention.
  • FIG. 6 is a circuit diagram of a controller in the present invention.
  • FIG. 7 is a circuit diagram of a power module in the present invention.
  • FIG. 8 is a circuit diagram of a high voltage ignition mechanism in the present invention.
  • FIG. 9 is a circuit diagram of a damper and a throttle control mechanism according to the present invention.
  • FIG. 10 is a circuit diagram of an electric start control mechanism of the present invention.
  • the present invention provides a first embodiment of a portable gasoline tool electronic ignition system including a boosting device and a spark plug 40 coupled to the output of the boosting device,
  • the portable gasoline tool electronic ignition system further includes: a DC power source 70, and a controller electrically connected to the DC power source 70 and connected to the boosting device.
  • the DC power source 70 is preferably a lithium battery, more preferably a detachable rechargeable lithium battery pack, and the controller is a single chip controller, wherein the controller controls the ignition energy and the ignition advance angle.
  • the present invention provides a second implementation of a portable gasoline tool electronic ignition system
  • the portable gasoline tool includes a body 10, and a flywheel 30 disposed on the body 10 and manually or electrically drawn.
  • the portable gasoline tool electronic ignition system includes a boosting device and a spark plug 40 connected to the output of the boosting device.
  • the portable gasoline tool electronic ignition system further includes: an inductive element disposed on the flywheel 30 or the body 10, a position sensor 50 disposed on the body 10 or the flywheel 30 and acquiring the rotational speed information of the flywheel 30 through the inductive element, and the position sensor 50 A controller that is electrically connected and connected to the boosting device, wherein the controller controls the ignition energy and the ignition advance angle.
  • the sensing elements are disposed on the flywheel 30 and are magnets, the number is at least two, and the position sensor 50 is disposed on the body 10 and the number is single.
  • the position sensor 50 is preferably a Hall element or a photoelectric element. Or other components.
  • the inductive element comprises a positioning magnet 32 for initial positioning and a measuring magnet 34 for rotational speed measurement, the positioning magnet 32 being also referred to as a top dead center positioning magnet.
  • the embodiment further includes a circuit board 52 disposed on the body 10 and electrically connected to the position sensor 50, and the sensing element is disposed in the circumferential direction of the flywheel 30, and the circuit board 52 is located on the flywheel 30. One side and keep a gap with the flywheel 30.
  • the sensing elements are magnets and the number is single, and the position sensors are two or more.
  • the embodiment further includes a DC power source 70 that supplies power to the controller, and the DC power source 70 is preferably a lithium battery, more preferably a detachable lithium battery pack.
  • the boosting device raises the output voltage of the lithium battery to the ignition voltage to provide sufficient energy for igniting the oil and gas mixture.
  • the output voltage of the lithium battery is 6 V ⁇ 12 V
  • the ignition voltage is 10,000 ⁇ 30,000.
  • the boosting device comprises a multi-stage boosting component.
  • the boosting device comprises a primary boosting component and a secondary boosting component, and the primary boosting component boosts the voltage from the output voltage of the lithium battery pack. Up to 200 V-250 V, the secondary boost component raises the voltage from 220V to 250V to the ignition voltage.
  • the output voltage of the lithium battery pack is 6V or 7.2 V
  • the boosting device 241 first raises the output voltage of the lithium battery pack to 220 V by using series inductance, and then raises the voltage of the 220V to the ignition voltage.
  • the ignition voltage here is 15,000 yen to 30,000 yuan.
  • the boosting device comprises an ignition coil.
  • the present invention provides a third embodiment of a portable gasoline tool comprising a body 10, a cylinder 20 disposed in the body 10, and a piston 60 reciprocable in the cylinder 20.
  • a crankshaft 62 that drives the piston 60 to move
  • a flywheel 30 disposed on the body 10 and driven to rotate by the crankshaft 62
  • an electronic ignition The electronic ignition system includes a boosting device, and a spark plug 40 connected to the output of the boosting device and disposed on the cylinder 20.
  • the electronic ignition system further includes: an inductive component disposed on the flywheel 30 or the body 10, disposed in the body 10 or a position sensor 50 on the flywheel 30 and acquiring flywheel speed information through an inductive element, and a controller electrically connected to the position sensor 50 and connected to the boosting device.
  • the sensing element is preferably disposed on the flywheel 30 and is a magnet
  • the number is at least two
  • the position sensor 50 is disposed on the body 10 and the number is single.
  • the position sensor 50 is preferably a Hall element, or may be a photoelectric element or Other components.
  • the cylinder 20 has a combustion chamber 22 therein, wherein the spark plug 40 is fixed to the cylinder 20 and at least partially extends into the combustion chamber 22.
  • the sensing element includes a positioning magnet 32 for initial positioning and a measuring magnet 34 for rotational speed measurement, and the positioning magnet 32 is also referred to as a top dead center positioning magnet.
  • the embodiment further includes a circuit board 52 disposed on the body 10 and electrically connected to the position sensor 50, and the sensing element is disposed in the circumferential direction of the flywheel 30, and the circuit board 52 is located on the flywheel 30.
  • the circuit board 52 is located on the flywheel 30. One side and keep a gap with the flywheel 30.
  • the sensing elements are magnets and the number is single, and the position sensors are two or more.
  • the position sensor 50 is preferably a Hall element, and may also be a photoelectric element or other elements.
  • the embodiment further includes a DC power source 70 that supplies power to the controller, and a temperature sensor coupled to the controller.
  • the present invention provides a fourth embodiment of a portable gasoline tool electronic ignition system including a boosting device and a spark plug 40 coupled to the output of the boosting device, the portable gasoline tool
  • the electronic ignition system further includes: a DC power source 70, a controller electrically connected to the DC power source 70 and connected to the boosting device, and a temperature sensor connected to the controller.
  • the DC power source 70 is preferably a lithium battery, more preferably a detachable lithium battery pack.
  • the present invention provides a fifth embodiment of a portable gasoline tool electronic ignition system, wherein the portable gasoline tool includes a body 10, and is disposed on the body 10 and is manually or electrically drawn.
  • the flywheel 30, the portable gasoline tool electronic ignition system includes a boosting device, and a spark plug 40 connected to the output of the boosting device, the portable gasoline tool electronic ignition system further comprising: an inductive component disposed on the flywheel 30 or the body 10, a position sensor 50 disposed on the body 10 or the flywheel 30 and acquiring flywheel speed information through an inductive element, a controller electrically connected to the position sensor 50 and connected to the boosting device A DC power source 70 that supplies power to the controller, and a temperature sensor coupled to the controller.
  • the position sensor 50 is preferably a Hall element, and may be a photovoltaic element or other element.
  • the DC power source 70 is preferably a lithium battery, more preferably a detachable rechargeable lithium battery pack.
  • FIG. 4 it is a functional block diagram of a circuit of the present invention, which comprises a lithium battery connected to the ground by a negative electrode, a power supply module connected to the positive electrode of the lithium battery and stepped down, and a controller connected to the power supply module. a damper control mechanism coupled to the controller, a throttle control mechanism coupled to the controller, an electric start control mechanism coupled to the controller, a high voltage ignition mechanism coupled to the controller, a speed feedback coupled to the controller and coupled to the Hall element The mechanism, and the temperature sensor connected to the controller.
  • the main chip circuit is included in the controller, and the circuit structure thereof is specifically referred to FIG. 6.
  • the internal circuit of the power module is specifically shown in FIG.
  • the high-voltage ignition mechanism includes components such as a booster device and a spark plug.
  • the present invention uses a lithium battery as a direct current power source
  • a position sensor is used to detect the flywheel rotation speed to determine the ignition angle
  • the temperature sensor detects the current temperature
  • the controller changes the direct current power source from the low pressure device through the boosting device. high pressure.
  • the controller calculates the current required ignition angle and ignition energy according to the current working conditions of the rotating speed, working time, temperature, etc., and then the electronic ignition system uses the high voltage package to release the corresponding energy through the internal calculated angle of the controller.
  • the spark causes the oil and gas mixture in the cylinder to burn, and pushes the piston to reciprocate, so that the gasoline engine is in an ideal working state.
  • the present invention There is no need to install a bulky magnet module on the blades of the flywheel, which can reduce the weight of the blade, so that the power emitted by the gasoline engine is less consumed on the blade, thereby improving the overall efficiency of the system.
  • the ignition angle at different speeds can be controlled to the optimal state, the working efficiency of the gasoline engine system in all speed states can be improved, and the ignition angle and energy can be precisely controlled by using the controller designed by the single chip microcomputer.
  • the controller can determine the position of the flywheel and the speed of the flywheel measured by the position sensor, and adjust the ignition angle by the control of the program algorithm, thereby obtaining the relationship between the ignition eclipse, the ignition energy and the rotational speed.
  • Figure 5 let The gasoline engine works more stably.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

一种便携式汽油工具及其电子点火系统，包括升压装置、和与升压装置输出相连的火花塞（40），所述电子点火系统还包括直流电源（70）、与直流电源（70）电性相连且与升压装置相连的控制器，控制器控制点火能量和点火提前角；汽油工具在开机阶段转速较低的条件下依然能实现启动，提高系统的整体效率，当汽油机负载急剧变化时，通过位置传感器检测到转速的变化，适时调整点火角度，使汽油机工作稳定，用户使用体验好。

Description

说明书 发明名称：便携式汽油工具及其电子点火系统 技术领域
[0001] 本发明涉及一种便携式汽油工具及其电子点火系统。
背景技术
[0002] 便携式汽油工具常用于园林绿化行业， 其电子点火系统是其中的一个关键系统 ， 电子点火系统主要包括飞轮、 升压装置、 火花塞， 主要作用是将吸入燃烧室 内的可燃混合气体由高压线圈驱动的火花塞产生火花点燃可燃混合气体， 使之 爆炸释放能量， 而且电子点火系统在最合适的点火角度， 发出足够的点火能量 ， 可以让便携式汽油工具的汽油机运行平稳， 提高效率。 目前普遍使用的电子 点火系统包括磁电机、 点火器、 设置在气缸上的感应线圈、 以及安装在飞轮上 的永磁铁， 永磁体随着飞轮转动当每一圈与固定在气缸上的感应线圈相遇吋， 就会在感应线圈中产生感应电流 （原理就如同发电机） 并且飞轮转速越高产生 的感应电流越大， 转速越低感应电流越小， 通过电路将此线圈感应电流放大成 为几万伏的电压使与之连接的并置于汽油机燃烧室内的火花塞点火。 然而该电 子点火系统存在以下缺点： 其电压与转速成正比， 在转速比较低吋， 产生的感 应电流小， 点火的能量也比较低， 其中点火吋刻， 点火能量和转速的关系如图 1 所示。 而且在幵机阶段， 转速较低， 点火能量不能产生此吋需要的大火花， 不 利于点火， 导致汽油机很难启动， 影响用户使用。
技术问题
[0003] 本发明要解决的技术问题是提供一种便携式汽油工具及其电子点火系统， 操作 简单方便， 即使在幵机阶段转速较低的条件下依然能实现启动， 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
[0004] 本发明的第一技术方案是： 一种便携式汽油工具电子点火系统， 其包括升压装 置、 和与升压装置输出相连的火花塞， 该便携式汽油工具电子点火系统还包括 ： 直流电源、 和与直流电源电性相连且与升压装置相连的控制器， 其中控制器 控制点火能量和点火提前角。
[0005] 在第一技术方案的基础上， 进一步包括如下附属技术方案：
[0006] 所述升压装置将所述直流电源的输出电压升至点火电压； 所述直流电源的输出 电压为 6 V~12 V， 所述点火电压为 1万 ~3万 。
[0007] 所述点火电压为 1.5万¥~3万¥。
[0008] 所述升压装置包括多级升压组件， 所述锂电池包的输出电压经过所述多级升压 组件升至点火电压。
[0009] 所述升压装置包括一级升压组件和二级升压组件； 所述一级升压组件将电压由 所述锂电池包的输出电压升至 200 V~250 V， 所述二级升压组件再将电压由 200 V-250 V升至点火电压。
[0010] 所述便携式汽油工具包括机体以及设置在所述机体上的飞轮， 所述电子点火系 统还包括设置在飞轮或机体上的感应元件、 设置在机体或飞轮上并通过感应元 件获取飞轮转速信息的位置传感器， 所述控制器根据所述飞轮转速信息控制点 火能量和点火提前角。
[0011] 所述感应元件设置在飞轮上且为磁铁， 数目为至少一个， 而位置传感器则设置 在机体上且数目为单个。
[0012] 所述感应元件设置在飞轮上且为铁， 数目为至少一个， 而位置传感器则设置在 机体上且数目为单个， 其中位置传感器为接近幵关。
[0013] 所述直流电源为锂电池， 且控制器为单片机控制器。
[0014] 所述直流电源为可拆卸并可充电。
[0015] 所述电子点火系统还包括与控制器相连的温度传感器， 所述温度传感器获取环 境温度信息， 所述控制器根据所述环境温度信息可控制点火能量和点火提前角
[0016] 所述升压装置包括点火线圈。
[0017] 本发明的第二技术方案是一种便携式汽油工具， 其包括机体、 设置在机体中的 气缸、 可在气缸中往复运动的活塞、 与活塞连动的曲轴、 设置在机体上并由曲 轴带动旋转的飞轮、 以及上述的电子点火系统。 发明的有益效果
有益效果
[0018] 本发明通过使用单片机设计的控制器， 可以精确控制点火角度和能量； 当汽油 机的负载急剧变化吋， 控制器可以通过位置传感器检测到转速的变化， 适吋调 整点火角度， 让汽油机工作更稳定， 另外操作简单方便， 即使在幵机阶段转速 较低的条件下依然能实现启动， 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为传统的点火系统特性曲线图；
[0020] 图 2为本发明的立体结构图， 其中部分壳体被移除；
[0021] 图 3为图 1的剖视图；
[0022] 图 4为本发明的电路功能方框图；
[0023] 图 5为本发明的点火系统特性曲线图；
[0024] 图 6为本发明中控制器的电路图；
[0025] 图 7为本发明中电源模块的电路图；
[0026] 图 8为本发明中高压点火机构的电路图；
[0027] 图 9为本发明中风门、 油门控制机构的电路图；
[0028] 图 10为本发明中电启动控制机构的电路图。
本发明的实施方式
[0029] 实施例: 如图 2-3所示， 本发明提供了一种便携式汽油工具电子点火系统的第 一实施例， 其包括升压装置、 和与升压装置输出相连的火花塞 40， 该便携式汽 油工具电子点火系统还包括： 直流电源 70、 和与直流电源 70电性相连且与升压 装置相连的控制器。 直流电源 70优选为锂电池， 更优选为可拆卸充电式锂电池 包， 且控制器为单片机控制器， 其中控制器控制点火能量和点火提前角。
[0030] 参考图 2-3所示， 本发明提供了一种便携式汽油工具电子点火系统的第二实施 例， 其中便携式汽油工具包括机体 10、 以及设置在机体 10上并由手动牵引或电 动牵引的飞轮 30， 该便携式汽油工具电子点火系统包括升压装置、 和与升压装 置输出相连的火花塞 40， 该便携式汽油工具电子点火系统还包括： 设置在飞轮 3 0或机体 10上的感应元件、 设置在机体 10或飞轮 30上并通过感应元件获取飞轮 30 转速信息的位置传感器 50、 以及与位置传感器 50电性相连且与升压装置相连的 控制器， 其中控制器控制点火能量和点火提前角。 本实施例中感应元件设置在 飞轮 30上且为磁铁， 数目为至少两个， 而位置传感器 50则设置在机体 10上且数 目为单个， 位置传感器 50优选为霍尔元件， 也可以为光电元件或其他元件。
[0031] 优选地， 感应元件包括用于初始定位的定位磁铁 32、 以及用于转速测量的测量 磁铁 34， 定位磁铁 32又称上死点定位磁铁。
[0032] 优选地， 本实施例还包括设置在机体 10上并与位置传感器 50电性相连并固定的 线路板 52， 感应元件设置在飞轮 30的周向， 而线路板 52则位于飞轮 30的一侧并 与飞轮 30保持间隙。
[0033] 优选地， 感应元件为磁铁且数目为单个， 而位置传感器为两个以上。
[0034] 优选地， 本实施例还包括向控制器提供电能的直流电源 70， 直流电源 70优选为 锂电池， 更优选为可拆卸式锂电池包。
[0035] 优选地， 升压装置将锂电池的输出电压升至点火电压， 为点燃油气混合气体提 供足够的能量。 其中， 锂电池的输出电压为 6 V~12 V， 所述点火电压为 1万¥~3 万¥。 作为优选， 升压装置包括多级升压组件， 在本实施例中， 升压装置包括一 级升压组件和二级升压组件， 一级升压组件将电压由锂电池包的输出电压升至 2 00 V-250 V, 二级升压组件再将电压由 220V~250V升至点火电压。 具体在本实 施例中， 锂电池包的输出电压为 6V或 7.2 V， 升压装置 241先将锂电池包的输出电 压利用串联电感方式升至 220 V， 再将 220V的电压升至点火电压， 这里点火电压 为 1.5万¥~3万 。
[0036] 优选地， 升压装置包括点火线圈。
[0037] 参考图 2-3所示， 本发明提供了一种便携式汽油工具的第三实施例， 其包括机 体 10、 设置在机体 10中的气缸 20、 可在气缸 20中往复运动的活塞 60、 驱动活塞 6 0运动的曲轴 62、 设置在机体 10上并由曲轴 62带动旋转的飞轮 30、 以及电子点火 系统， 该电子点火系统包括升压装置、 和与升压装置输出相连且设置在气缸 20 上的火花塞 40， 该电子点火系统还包括： 设置在飞轮 30或机体 10上的感应元件 、 设置在机体 10或飞轮 30上并通过感应元件获取飞轮转速信息的位置传感器 50 、 以及与位置传感器 50电性相连且与升压装置相连的控制器。 其中感应元件优 选地设置在飞轮 30上且为磁铁， 数目为至少两个， 而位置传感器 50则设置在机 体 10上且数目为单个， 位置传感器 50优选为霍尔元件， 也可以为光电元件或其 他元件。 气缸 20内有燃烧室 22， 其中火花塞 40固定在气缸 20上并至少部分伸入 到燃烧室 22内。
[0038] 优选地， 感应元件包括用于初始定位的定位磁铁 32、 以及用于转速测量的测量 磁铁 34， 定位磁铁 32又称上死点定位磁铁。
[0039] 优选地， 本实施例还包括设置在机体 10上并与位置传感器 50电性相连并固定的 线路板 52， 感应元件设置在飞轮 30的周向， 而线路板 52则位于飞轮 30的一侧并 与飞轮 30保持间隙。
[0040] 优选地， 感应元件为磁铁且数目为单个， 而位置传感器为两个以上， 位置传感 器 50优选为霍尔元件， 也可以为光电元件或其他元件。
[0041] 优选地， 本实施例还包括向控制器提供电能的直流电源 70、 以及与控制器相连 的温度传感器。
[0042] 参考图 2-3所示， 本发明提供了一种便携式汽油工具电子点火系统的第四实施 例， 其包括升压装置、 和与升压装置输出相连的火花塞 40， 该便携式汽油工具 电子点火系统还包括： 直流电源 70、 与直流电源 70电性相连且与升压装置相连 的控制器、 以及与控制器相连的温度传感器。 直流电源 70优选为锂电池， 更优 选为可拆卸式锂电池包。
[0043] 参考图 2-3所示， 本发明提供了一种便携式汽油工具电子点火系统的第五实施 例， 其中便携式汽油工具包括机体 10、 以及设置在机体 10上并由手动牵引或电 动牵引的飞轮 30， 该便携式汽油工具电子点火系统包括升压装置、 和与升压装 置输出相连的火花塞 40， 该便携式汽油工具电子点火系统还包括： 设置在飞轮 3 0或机体 10上的感应元件、 设置在机体 10或飞轮 30上并通过感应元件获取飞轮转 速信息的位置传感器 50、 与位置传感器 50电性相连且与升压装置相连的控制器 、 向控制器提供电能的直流电源 70、 以及与控制器相连的温度传感器。 位置传 感器 50优选为霍尔元件， 也可以为光电元件或其他元件。 直流电源 70优选为锂 电池， 更优选为可拆卸式充电锂电池包。
[0044] 参考图 4所示， 其为本发明的电路功能方框图， 其结构包括负极与地相连的锂 电池、 与锂电池正极相连且进行降压的电源模块、 与电源模块相连的控制器、 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。 其中控制器内有主 芯片电路， 其电路结构具体参考图 6， 电源模块内部电路具体参考图 7所示， 而 高压点火机构的电路结构具体参考图 8所示， 风门、 油门控制机构的电路结构具 体参考图 9所示， 电启动控制机构的电路结构具体参考图 10所示。 高压点火机构 包括升压装置、 火花塞等元件。
[0045] 综合上述实施例， 本发明使用锂电池作为直流电源， 通过位置传感器用来检测 飞轮转速以确定点火角度， 而温度传感器检测当前温度， 控制器将直流电源经 过升压装置由低压变为高压。 控制器根据当前的转速、 工作吋间、 温度等综合 工况， 计算出当前所需要的点火角度和点火能量， 然后电子点火系统通过控制 器内部计算出的角度使用高压包释放出相应能量的电火花， 使气缸内的油气混 合物进行燃烧， 推动活塞往复运动， 使得汽油机处于理想的工作状态。 由此可 以在极低转速下实现点火， 通过温度传感器检测当前的温度， 温度偏低吋提高 点火能量。 同吋控制器可以控制点火角度和能量， 使得在气缸内浓度最高吋点 火， 火花最大， 使得汽油机启动相对容易， 更好操作， 效率更高， 与现有的磁 电机技术方案相比， 本发明不需要在飞轮的叶片上安装笨重的磁铁模块， 可以 减轻叶片的重量， 使得汽油机发出的功率较少的消耗在叶片上， 提高系统的整 体效率。 同吋通过速度检测， 可以将不同速度下的点火角度控制在最理想的状 态， 提高汽油机系统在所有速度状态的工作效率， 而且通过使用单片机设计的 控制器， 可以精确控制点火角度和能量。 当汽油机的负载急剧变化吋， 控制器 可以通过位置传感器测到的飞轮位置以及飞轮的转速， 通过程序算法的控制， 适吋调整点火角度， 由此获得点火吋刻、 点火能量和转速的关系如图 5所示， 让 汽油机工作更稳定。
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] 一种便携式汽油工具电子点火系统， 其包括升压装置、 和与升压装置 输出相连的火花塞， 其特征在于该便携式汽油工具电子点火系统还包 括： 直流电源、 和与直流电源电性相连且与升压装置相连的控制器， 其中控制器控制点火能量和点火提前角。
[权利要求 2] 如权利要求 1所述的园林工具， 其特征是， 所述升压装置将所述直流 电源的输出电压升至点火电压； 所述直流电源的输出电压为 6 V~12 V ， 所述点火电压为 1万¥~3万¥。
[权利要求 3] 如权利要求 2所述的园林工具， 其特征是， 所述点火电压为 1.5万¥~3 。
[权利要求 4] 如权利要求 1~3任意一项所述的园林工具， 其特征是， 所述升压装置 包括多级升压组件， 所述锂电池包的输出电压经过所述多级升压组件 升至点火电压。
[权利要求 5] 如权利要求 4所述的园林工具， 其特征是， 所述升压装置包括一级升 压组件和二级升压组件； 所述一级升压组件将电压由所述锂电池包的 输出电压升至 200 V-250 V， 所述二级升压组件再将电压由 200 V-250 V升至点火电压。
[权利要求 6] 如权利要求 1所述的一种便携式汽油工具电子点火系统， 其特征在于
： 所述便携式汽油工具包括机体以及设置在所述机体上的飞轮， 所述 电子点火系统还包括设置在飞轮或机体上的感应元件、 设置在机体或 飞轮上并通过感应元件获取飞轮转速信息的位置传感器， 所述控制器 根据所述飞轮转速信息控制点火能量和点火提前角。
[权利要求 7] 如权利要求 1所述的一种便携式汽油工具电子点火系统， 其特征在于
： 所述直流电源为可拆卸的可充电锂电池， 且控制器为单片机控制器
[权利要求 8] 如权利要求 1所述的一种便携式汽油工具电子点火系统， 其特征在于
： 所述电子点火系统还包括与控制器相连的温度传感器， 所述温度传 感器获取环境温度信息， 所述控制器根据所述环境温度信息可控制点 火能量和点火提前角。
[权利要求 9] 如权利要求 1所述的一种便携式汽油工具电子点火系统， 其特征在于
： 所述升压装置包括点火线圈。
[权利要求 10] —种便携式汽油工具， 其包括机体、 设置在机体中的气缸、 可在气缸 中往复运动的活塞、 与活塞连动的曲轴、 设置在机体上并由曲轴带动 旋转的飞轮、 以及如权利要求 1~8任意一项所述的电子点火系统。
PCT/CN2017/071178 2016-01-15 2017-01-13 便携式汽油工具及其电子点火系统 Ceased WO2017121398A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/069,557 US10704521B2 (en) 2016-01-15 2017-01-13 Portable gasoline tool and electronic ignition system thereof
EP17738211.6A EP3404251B1 (en) 2016-01-15 2017-01-13 Portable gasoline tool and electronic ignition system thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610024698.X 2016-01-15
CN201610024698.XA CN105508117A (zh) 2016-01-15 2016-01-15 便携式汽油工具及其电子点火系统

Publications (1)

Publication Number Publication Date
WO2017121398A1 true WO2017121398A1 (zh) 2017-07-20

Family

ID=55716347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/071178 Ceased WO2017121398A1 (zh) 2016-01-15 2017-01-13 便携式汽油工具及其电子点火系统

Country Status (4)

Country Link
US (1) US10704521B2 (zh)
EP (1) EP3404251B1 (zh)
CN (1) CN105508117A (zh)
WO (1) WO2017121398A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3663567A1 (en) 2016-01-15 2020-06-10 Suzhou Cleva Precision Machinery & Technology Co., Ltd. Garden tool
CN105508117A (zh) 2016-01-15 2016-04-20 苏州科瓴精密机械科技有限公司 便携式汽油工具及其电子点火系统
CN108757265B (zh) * 2018-07-09 2024-01-05 苏州科瓴精密机械科技有限公司 一种发动机起动电路
CN117437839A (zh) * 2023-12-18 2024-01-23 西北师范大学 一种教学演示用内燃机及其使用方法

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101126356A (zh) * 2006-08-16 2008-02-20 安德烈亚斯.斯蒂尔两合公司 对于内燃机用燃油/空气-混合物的成分进行调节的方法
CN101363380A (zh) * 2008-10-09 2009-02-11 张和君 电控汽油发动机工作系统
US20090194726A1 (en) * 2008-02-06 2009-08-06 Walbro Engine Management L.L.C. Layered scavenging carburetor
CN202047923U (zh) * 2011-05-27 2011-11-23 山东绿环动力设备有限公司 一种四缸燃气发动机控制系统
CN103758671A (zh) * 2014-01-14 2014-04-30 曲日 无噪声启动汽油发动机及其启动方法
CN105247203A (zh) * 2013-05-24 2016-01-13 株式会社电装 内燃机的点火控制装置
CN105464875A (zh) * 2016-01-15 2016-04-06 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN105508117A (zh) * 2016-01-15 2016-04-20 苏州科瓴精密机械科技有限公司 便携式汽油工具及其电子点火系统
CN105545562A (zh) * 2016-01-15 2016-05-04 苏州科瓴精密机械科技有限公司 小型汽油机
CN105673290A (zh) * 2016-01-15 2016-06-15 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN205370829U (zh) * 2016-01-15 2016-07-06 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN205638762U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 便携式汽油工具及其电子点火系统
CN205638760U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 小型汽油机
CN205638761U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 便携式汽油工具

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069889B1 (en) * 1981-07-03 1988-05-11 Nissan Motor Co., Ltd. Ignition system for an internal combustion engine
JPS62107272A (ja) * 1985-10-31 1987-05-18 Nippon Soken Inc 内燃機関用点火装置
CN1028890C (zh) * 1992-06-16 1995-06-14 姜林 车辆上弹簧贮能式起动机
IT1275771B1 (it) * 1995-06-21 1997-10-17 Ducati Energia Spa Sistema elettronico di accensione con microcontrollore per motori a combustione interna invertibili
JP3410294B2 (ja) * 1996-06-21 2003-05-26 三菱電機株式会社 内燃機関用ノック制御装置
JP3799898B2 (ja) * 1999-09-20 2006-07-19 株式会社日立製作所 筒内噴射式エンジンの制御装置
JP3827059B2 (ja) 2000-07-11 2006-09-27 本田技研工業株式会社 エンジンの始動制御装置
JP4270426B2 (ja) 2001-01-31 2009-06-03 スターテング工業株式会社 エンジンの始動装置
US6868832B2 (en) * 2003-07-09 2005-03-22 Honda Motor Co., Ltd. Electronic controlled fuel injection apparatus of internal combustion engine
JP4199688B2 (ja) * 2004-03-18 2008-12-17 本田技研工業株式会社 オートチョーク装置
JP2006061990A (ja) * 2004-08-24 2006-03-09 Hitachi Koki Co Ltd 燃焼式動力工具
JP4395841B2 (ja) * 2004-09-29 2010-01-13 日立工機株式会社 燃焼式打込み工具
US7525287B2 (en) 2004-10-08 2009-04-28 Husqvarna Zenoah Co., Ltd. Battery pack for driving electric motor of compact engine starting device, engine starting device driven by the battery pack, and manual working machine having the engine starting device
DE102006038278B4 (de) * 2006-08-16 2022-02-17 Andreas Stihl Ag & Co. Kg Tragbares, handgeführtes Arbeitsgerät mit einer Datenverbindung zur Diagnose
JP4868523B2 (ja) 2007-04-04 2012-02-01 京都電機器株式会社 エンジンにおけるオートチョーク装置
US8219305B2 (en) * 2008-05-27 2012-07-10 Briggs & Stratton Corporation Engine with an automatic choke and method of operating an automatic choke for an engine
JP4497238B2 (ja) * 2008-09-16 2010-07-07 トヨタ自動車株式会社 車両制御システム
JP5256151B2 (ja) 2009-09-02 2013-08-07 株式会社マキタ 刈払機
DE102009053236A1 (de) * 2009-11-06 2011-05-12 Andreas Stihl Ag & Co. Kg Handgeführtes Arbeitsgerät mit einem luftgekühlten Verbrennungsmotor
EP2693019B1 (en) * 2011-03-31 2017-04-05 Makita Corporation Mobile operating machine having hybrid driving system
DE102012012798B4 (de) 2012-06-28 2014-11-13 Andreas Stihl Ag & Co. Kg Arbeitsgerät mit einer Bremseinrichtung
DE102012024840A1 (de) * 2012-12-19 2014-06-26 Andreas Stihl Ag & Co. Kg Verfahren zum Betrieb eines Verbrennungsmotors in einem handgeführten Arbeitsgerät
CN204253214U (zh) * 2014-10-31 2015-04-08 白树春 适用于普通摩托车化油器使用的自动风门装置
CN105484899B (zh) 2016-01-15 2018-09-18 苏州科瓴精密机械科技有限公司 便携式汽油机及其自动风门控制系统
CN205638728U (zh) 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 便携式汽油机及其自动风门控制系统
CN205503286U (zh) 2016-01-15 2016-08-24 苏州科瓴精密机械科技有限公司 电动油门装置及其控制系统
EP3663567A1 (en) * 2016-01-15 2020-06-10 Suzhou Cleva Precision Machinery & Technology Co., Ltd. Garden tool
CN105484876A (zh) 2016-01-15 2016-04-13 苏州科瓴精密机械科技有限公司 电动油门装置及其控制系统

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101126356A (zh) * 2006-08-16 2008-02-20 安德烈亚斯.斯蒂尔两合公司 对于内燃机用燃油/空气-混合物的成分进行调节的方法
US20090194726A1 (en) * 2008-02-06 2009-08-06 Walbro Engine Management L.L.C. Layered scavenging carburetor
CN101363380A (zh) * 2008-10-09 2009-02-11 张和君 电控汽油发动机工作系统
CN202047923U (zh) * 2011-05-27 2011-11-23 山东绿环动力设备有限公司 一种四缸燃气发动机控制系统
CN105247203A (zh) * 2013-05-24 2016-01-13 株式会社电装 内燃机的点火控制装置
CN103758671A (zh) * 2014-01-14 2014-04-30 曲日 无噪声启动汽油发动机及其启动方法
CN105464875A (zh) * 2016-01-15 2016-04-06 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN105508117A (zh) * 2016-01-15 2016-04-20 苏州科瓴精密机械科技有限公司 便携式汽油工具及其电子点火系统
CN105545562A (zh) * 2016-01-15 2016-05-04 苏州科瓴精密机械科技有限公司 小型汽油机
CN105673290A (zh) * 2016-01-15 2016-06-15 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN205370829U (zh) * 2016-01-15 2016-07-06 苏州科瓴精密机械科技有限公司 便携式汽油工具
CN205638762U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 便携式汽油工具及其电子点火系统
CN205638760U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 小型汽油机
CN205638761U (zh) * 2016-01-15 2016-10-12 苏州科瓴精密机械科技有限公司 便携式汽油工具

Also Published As

Publication number Publication date
CN105508117A (zh) 2016-04-20
US10704521B2 (en) 2020-07-07
EP3404251B1 (en) 2026-03-11
EP3404251A4 (en) 2019-02-13
EP3404251A1 (en) 2018-11-21
US20190024620A1 (en) 2019-01-24

Similar Documents

Publication Publication Date Title
WO2017121398A1 (zh) 便携式汽油工具及其电子点火系统
CN105074198B (zh) 内燃机的点火装置
US10263485B2 (en) Alternator with integrated engine controller
CN103890379B (zh) 内燃机用控制装置
CN111051683B (zh) 内燃机的起动辅助装置
CN104662286B (zh) 发动机起动装置
CN205638762U (zh) 便携式汽油工具及其电子点火系统
WO2015106669A1 (zh) 无噪声启动汽油发动机及其启动方法
CA2518638A1 (en) Power supply for vehicle
CN205638760U (zh) 小型汽油机
CN101567657B (zh) 电容器补偿式发电机
CN105464875A (zh) 便携式汽油工具
CN212154982U (zh) 一种用于小型燃油机的电控化油器
CN105673290B (zh) 便携式汽油工具
CN210889179U (zh) 一种稀薄燃烧发动机的串联谐振点火电路
CN202811164U (zh) 一种六个火花塞循环控制的内燃机点火系统
CN202768218U (zh) 用于发电机点火系统的自动切换保护系统
CN108278173A (zh) 一种发动机电路控制系统
JP2018178757A (ja) エンジンシステム
CN105545562A (zh) 小型汽油机
CN202157890U (zh) 摩托车点火装置
CN207989156U (zh) 一种电控燃油喷射舷外机
TW201632721A (zh) 引擎系統及跨坐型車輛
CN111075608B (zh) 一种用于小型燃油机的电控化油器
CN202914227U (zh) 一种四个火花塞循环控制的内燃机点火系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17738211

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2017738211

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017738211

Country of ref document: EP

Effective date: 20180816

WWG Wipo information: grant in national office

Ref document number: 2017738211

Country of ref document: EP