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1. 发明授权

US09926870B2 Warm-up control apparatus for general-purpose engine 有权
公开(公告)号：US09926870B2
公开(公告)日：2018-03-27
申请号：US13219162
申请日：2011-08-26
申请人： Takashi Hashizume , Tomoki Fukushima , Shigeru Saito
发明人： Takashi Hashizume , Tomoki Fukushima , Shigeru Saito
IPC分类号： F02D41/06 , F02D28/00 , F02D41/30
CPC分类号： F02D41/068 , F02D2200/021 , F02D2200/0404 , F02D2200/10
摘要： In an apparatus for controlling warm-up operation of a general-purpose internal combustion engine having a throttle valve installed in an air intake pipe and connectable to an operating machine to be used as a prime mover of the machine, it is configured to calculate a basic fuel injection amount based on an engine speed and a throttle opening and control engine warm-up operation by calculating a warm-up time fuel injection amount by correcting the calculated basic fuel injection amount based on one of a temperature change amount of a spark plug seat of the engine, the throttle opening and an output of the operating machine and injecting fuel from an injector by the calculated warm-up time fuel injection amount. With this, it becomes possible to calculate a fuel injection amount suitable for the engine warm-up condition by using an appropriate parameter in place of the lubricating oil temperature.

2. 发明授权

US09541011B2 Air/fuel ratio control apparatus for general-purpose engine 有权
标题翻译：通用发动机空燃比控制装置
公开(公告)号：US09541011B2
公开(公告)日：2017-01-10
申请号：US12978744
申请日：2010-12-27
申请人： Takashi Hashizume , Tomoki Fukushima , Shigeru Saito
发明人： Takashi Hashizume , Tomoki Fukushima , Shigeru Saito
IPC分类号： F02D19/08 , F02D19/06 , F02D31/00 , F02D41/00 , F02D41/14 , F02D41/24
CPC分类号： F02D19/061 , F02D19/0613 , F02D19/084 , F02D19/088 , F02D31/002 , F02D41/0025 , F02D41/1458 , F02D41/2422 , F02D41/2454 , F02D2041/1422 , F02D2200/021 , F02D2200/0404 , F02D2200/0612 , F02D2200/101 , Y02T10/36
摘要： In an apparatus for controlling an air/fuel ratio of a general-purpose internal combustion engine using mixed fuel containing alcohol and gasoline and operated at a desired engine speed inputted by the operator while a throttle opening is regulated such that a detected engine speed converges to the inputted desired engine speed, a fuel injection amount for mixed fuel determined based on fuel injection amount characteristics is increased/decreased when a load is kept constant and the output air/fuel ratio (at which an output of the engine becomes maximum) is estimated. And the fuel injection amount is corrected based on the estimated air/fuel ratio, thereby enabling to estimate the output air/fuel ratio without using an expensive air/fuel ratio sensor and to feedback-control the fuel injection amount such that the engine is operated at the output air/fuel ratio.
摘要翻译：在使用含有酒精和汽油的混合燃料并以操作员输入的期望的发动机转速进行操作的通用内燃机的空燃比的装置中，在调节节气门开度使得检测到的发动机转速收敛于输入的所需发动机转速，基于燃料喷射量特性确定的混合燃料的燃料喷射量在负载保持恒定并且输出空燃比（发动机的输出变为最大值）时被增加/减少。并且基于估计的空燃比校正燃料喷射量，从而能够在不使用昂贵的空气/燃料比传感器的情况下估计输出空燃比，并且反馈控制燃料喷射量，使得发动机被操作在输出空燃比。

3. 发明授权

US08036818B2 Control apparatus for general-purpose engine 有权
标题翻译：通用发动机控制装置
公开(公告)号：US08036818B2
公开(公告)日：2011-10-11
申请号：US12383151
申请日：2009-03-20
申请人： Akihito Kasai , Hideaki Shimamura , Tomoki Fukushima , Makoto Yamamura
发明人： Akihito Kasai , Hideaki Shimamura , Tomoki Fukushima , Makoto Yamamura
IPC分类号： F02D41/00 , F02M51/00
CPC分类号： F02D41/068 , F02D9/1065 , F02D9/109 , F02D2200/023 , F02D2200/0404 , F02D2200/0414
摘要： In a general-purpose engine having a throttle valve installed in an air intake passage connected to a combustion chamber, sucked air mixing with fuel to generate an air-fuel mixture to be ignited to drive a piston to rotate a crankshaft connected to a load, a first warm-up time period during which the engine is warmed up and a second warm-up time period which is longer than the first time period are determined based on detected engine temperature and a fuel quantity is increased during the first time period. The operation of the motor is controlled such that a change rate of throttle valve opening is limited within a range until the measured time exceeds the second warm-up time period after it exceeded the first time period. With this, it becomes possible to complete warm-up operation in a short period of time, while improving rate of fuel consumption and emission performance.
摘要翻译：在具有安装在连接到燃烧室的进气通道中的节流阀的通用发动机中，与燃料混合的吸入空气以产生要点燃的空气 - 燃料混合物以驱动活塞来旋转连接到负载的曲轴，基于检测到的发动机温度来确定发动机预热的第一预热时间段和比第一时间段长的第二预热时间段，并且在第一时间段期间燃料量增加。控制电动机的操作，使得节气门开度的变化率在超过第一时间段之后被限制在测量时间超过第二预热时间段的范围内。通过这样，可以在短时间内完成预热运行，同时提高燃油消耗率和排放性能。

4. 发明授权

US07987042B2 Engine oil level detection system 有权
标题翻译：发动机油位检测系统
公开(公告)号：US07987042B2
公开(公告)日：2011-07-26
申请号：US11993487
申请日：2006-06-16
申请人： Yoshihisa Shinogi , Tomoki Fukushima , Naoya Toida , Akihisa Shinoda , Takeshi Maeda
发明人： Yoshihisa Shinogi , Tomoki Fukushima , Naoya Toida , Akihisa Shinoda , Takeshi Maeda
IPC分类号： G06F19/00 , F01M1/02 , G01F23/30
CPC分类号： G01F23/70 , F01M11/12 , G01F23/0061 , H01H35/18
摘要： An oil level detection apparatus having a float-type oil level detector (50) and a mode switching unit. The oil level detector emits a signal indicating that the oil level has dropped when a movable contact disposed on a float (54) makes contact with fixed contacts once the level of oil (Lu) has dropped to a lower limit level. The mode switching unit switches between one of two modes selected from a first mode for actuating the alarm and stopping the engine (10) in accordance with the level drop signal, and a second mode for actuating the alarm and continuing to operate the engine (10) in accordance with the level drop signal.
摘要翻译：具有浮子式油位检测器（50）和模式切换单元的油位检测装置。一旦油（Lu）的油位下降到下限水平时，油位检测器发出指示当浮动物（54）上的活动触点与固定触点接触时，油位已经下降的信号。模式切换单元在从用于启动报警的第一模式中选择的两种模式中的一种模式和根据水平降低信号停止发动机（10）之间切换，以及用于致动报警并继续操作发动机（10）的第二模式）根据电平降低信号。

5. 发明授权

US07657365B2 Fuel injection quantity control system for general-purpose engine 失效
标题翻译：通用发动机燃油喷射量控制系统
公开(公告)号：US07657365B2
公开(公告)日：2010-02-02
申请号：US12258124
申请日：2008-10-24
申请人： Tomoki Fukushima , Hayato Matsuda , Takashi Hashizume , Shigeru Saito
发明人： Tomoki Fukushima , Hayato Matsuda , Takashi Hashizume , Shigeru Saito
IPC分类号： G06F19/00 , F02M51/00
CPC分类号： F02D41/10 , F02B63/00 , F02D9/105 , F02D41/045 , F02D41/34 , F02D2011/102 , F02D2200/0404 , F02D2200/602
摘要： A fuel injection control system corrects the amount of fuel injected by fuel injection valves toward an increased side when an acceleration state resulting from operation of a throttle occurs. A control unit includes a detector, an acceleration state determinor, and an acceleration corrector. When an increase in the detected value is a predetermined value or more within a first predetermined time period, the acceleration state determiner determines that a state is an acceleration state and inputs a signal inducing fuel-amount-increase correction to the acceleration corrector. When the state where an amount of change in the detected value reaches a predetermined value or more in an increasing or decreasing direction within a first predetermined time period continuously occurs a predetermined number of times or more before a second predetermined time period expires, determination of the acceleration state is stopped until a third predetermined time period passes.
摘要翻译：燃料喷射控制系统当由于节气门操作引起的加速度状态发生时，将由燃料喷射阀喷射的燃油量增加一侧校正。控制单元包括检测器，加速度状态确定器和加速度校正器。当检测值的增加在第一预定时间段内为预定值以上时，加速度状态确定器确定状态是加速状态，并且向加速度校正器输入引起燃料增加量校正的信号。当在第一预定时间段内检测值的变化量在增加或减小方向上达到预定值以上的状态在第二预定时间段到期之前持续发生预定次数或更多次时，确定加速状态停止直到第三预定时间段过去。

6. 发明申请

US20090106581A1 System and method for data writing 审中-公开
标题翻译：数据写入的系统和方法
公开(公告)号：US20090106581A1
公开(公告)日：2009-04-23
申请号：US12286788
申请日：2008-10-02
申请人： Yoshihisa Shinogi , Makoto Yamamura , Kazuhiro Sato , Tomoki Fukushima
发明人： Yoshihisa Shinogi , Makoto Yamamura , Kazuhiro Sato , Tomoki Fukushima
IPC分类号： G06F11/14 , G06F11/16
CPC分类号： G06F11/1666 , G06F11/167 , G06F11/20
摘要： In a system for or method of data writing using a CPU and a plurality of memory banks connected to the CPU to enable the CPU to write the data thereon, a combination of data comprising data and their complement are written on a first memory bank and the same combination of data are written on a second memory bank, a sum of the combination of data written on the first and second memory banks is calculated, and when the sum of the combination of data written on one of the first and second memory banks is a specific value, it is determined that the data written on the one of the first and second memory banks are normal. With this, it becomes possible to surely determine whether the written data are normal or not, thereby enabling to enhance the data reliability.
摘要翻译：在使用连接到CPU的CPU和多个存储体的数据写入系统或数据写入方法中，使得CPU能够在其上写入数据，将包括数据及其补码的数据的组合写在第一存储体上，并且将数据的相同组合写入第二存储体，计算写入第一和第二存储体的数据的组合的和，并且当写入第一和第二存储体之一的数据的组合之和为确定写入第一和第二存储体之一的数据正常的数据。由此，可以确定写入数据是否正常，能够提高数据的可靠性。

7. 发明授权

US07370458B2 Speed control system for lawnmower engine 失效
标题翻译：割草机发动机转速控制系统
公开(公告)号：US07370458B2
公开(公告)日：2008-05-13
申请号：US10874182
申请日：2004-06-24
申请人： Hayato Matsuda , Tomoki Fukushima
发明人： Hayato Matsuda , Tomoki Fukushima
IPC分类号： A01D63/10
CPC分类号： A01D34/6806 , Y02P60/142
摘要： In a lawnmower engine speed control system having an actuator moving a throttle valve and a controller controlling operation of the actuator such that the engine speed becomes equal to a predefined desired engine speed, it is determined whether the lawnmower is under a mowing operation based on a value indicative of a load of the engine including an operation rate or output of the engine, the desired engine speed is changed based on a result of determination, thereby enabling to lower noise, to boost fuel efficiency, and to simplify operation by making manual regulation of engine speed unnecessary, while ensuring stable operation free from engine speed variance.
摘要翻译：在具有致动器移动节流阀的割草机发动机速度控制系统和控制致动器的操作的控制器中，使得发动机速度等于预定的期望发动机转速，确定割草机是否处于基于表示包括发动机的运转率或发动机的发动机的负荷的值，基于判定结果来改变期望的发动机转速，从而能够降低噪音，提高燃油效率，并且通过进行手动调节来简化操作的发动机转速不必要，同时确保稳定运行，不受发动机转速的影响。

8. 发明授权

US07357755B2 Engine speed control system for walk-behind truck 失效
标题翻译：用于步行车的发动机转速控制系统
公开(公告)号：US07357755B2
公开(公告)日：2008-04-15
申请号：US11234149
申请日：2005-09-26
申请人： Tomoki Fukushima , Hayato Matsuda , Shinichi Katsuragawa
发明人： Tomoki Fukushima , Hayato Matsuda , Shinichi Katsuragawa
IPC分类号： B60W10/02 , B60W10/06 , B60W10/20
CPC分类号： F02D31/001 , Y10S477/903 , Y10T477/79
摘要： In an engine speed control system mounted on a walk-behind truck having a bed that carries cargo, to power driven wheels through a clutch such that the truck runs and the engine speed is controlled to a desired engine speed, it is detected whether the operator performs operation for disengaging the clutch or for turning the truck, and the desired engine speed is determined to a first value when the operator does not perform any of the operations, while determining it to a second value (lower than the first value) when the operator performs the clutch disengaging or truck turning operation, thereby preventing lurching and sharp turning, protecting cargo against being damaged and falling off, and minimizing fuel consumption and noise.
摘要翻译：在安装在具有携带货物的床的步行卡车上的发动机速度控制系统中，通过离合器将动力驱动的车轮运行，使得卡车运行并且将发动机转速控制到期望的发动机转速，检测操作者执行用于使离合器分离或用于转向卡车的操作，并且当操作者不执行任何操作时，将期望的发动机速度确定为第一值，同时当所述发动机速度确定为第二值（低于第一值）时操作员执行离合器分离或卡车车削操作，从而防止倾斜和急转弯，保护货物不被损坏和脱落，并且最小化燃料消耗和噪音。

9. 发明授权

US07328100B2 Coil failure detection system for general-purpose engine 失效
标题翻译：通用发动机线圈故障检测系统
公开(公告)号：US07328100B2
公开(公告)日：2008-02-05
申请号：US11477553
申请日：2006-06-30
申请人： Tomoki Fukushima , Yoshihisa Shinogi
发明人： Tomoki Fukushima , Yoshihisa Shinogi
IPC分类号： G06F19/00 , F02D1/00
CPC分类号： F02P17/00 , F02D41/009 , F02D41/0097 , F02D41/222 , F02D2041/2089 , F02D2041/228 , F02N3/02 , F02P1/02
摘要： In a failure detection system of coils that produce outputs in response to rotation of a crankshaft of a general-purpose engine (including a power coil that produces an output indicative of the engine speed), the outputs produced by the coils are inputted to determine whether the coils produce the outputs, and it is discriminated that one of the coils (i.e., power coil) has failed when the coil does not produce the output, thereby enabling detection of failure such as wire breaking of the power coil and preventing overrunning of the engine and other such problems.
摘要翻译：在响应于通用发动机（包括产生表示发动机转速的输出的功率线圈）的曲轴产生输出的线圈的故障检测系统中，输入由线圈产生的输出，以确定是否线圈产生输出，并且当线圈不产生输出时，区分线圈（即，功率线圈）中的一个已经失效，从而能够检测诸如电源线圈的断线和防止功率线圈的超越的故障发动机等问题。

10. 发明授权

US07191583B2 Lawn mower control system 有权
标题翻译：割草机控制系统
公开(公告)号：US07191583B2
公开(公告)日：2007-03-20
申请号：US10947919
申请日：2004-09-23
申请人： Tomoki Fukushima , Hayato Matsuda , Shinichi Katsuragawa , Hiroshi Kobayashi
发明人： Tomoki Fukushima , Hayato Matsuda , Shinichi Katsuragawa , Hiroshi Kobayashi
IPC分类号： A01D43/06
CPC分类号： A01D34/006 , A01D34/68 , A01D43/0631 , A01D2034/6843 , Y02P60/142
摘要： In a control system of a lawn mower having an internal combustion engine controlled to a desired engine speed by a throttle actuator, a blade connected to the engine to be driven to cut grass, an engine output is estimated based on a detected throttle position and the desired engine speed, and when the estimated engine output exceeds a prescribed value, the grass bag is determined to be full of cut grass. With this, a full grass bag can be detected and the operator informed without providing a dedicated sensor. In addition, a blade switch that inputs a drive instruction to drive the blade and a running switch that inputs a running instruction to propel the lawn mower are provided, and the desired engine speed is set to a first speed when neither the drive instruction nor the running instruction is inputted, but is changed immediately to a second speed, set higher than the first speed, when the drive instruction is inputted, or is changed to the second speed gradually, when the running instruction is inputted, whereby fuel efficiency and operability are improved.
摘要翻译：在具有通过节气门致动器控制到期望的发动机转速的内燃机的割草机的控制系统中，连接到待驱动的发动机切割草的叶片，基于检测到的节气门位置来估计发动机输出，并且期望的发动机转速，当发动机的预计发动机输出超过规定值时，确定草袋充满草地。因此，可以检测到全草包，并且在不提供专用传感器的情况下通知操作者。此外，提供了输入驱动刀片的驱动指令的刀片开关和输入运行指令以推进割草机的运行开关，并且当驱动指令和驱动指令都不被设置时，期望的发动机转速被设定为第一速度输入运行指令，但是当输入了驱动指令或逐渐变为第二速度时，在输入运行指令的同时，立即改变为设定为高于第一速度的第二速度的第二速度，从而燃料效率和可操作性是改进。

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