公开(公告)号：US07305871B2

公开(公告)日：2007-12-11

申请号：US11386791

申请日：2006-03-23

申请人： Hiroshi Arita ,  Takahiro Aki ,  Takeshi Maenaka

发明人： Hiroshi Arita ,  Takahiro Aki ,  Takeshi Maenaka

IPC分类号： G01M15/00

CPC分类号： F02P7/061

摘要： A cylinder discriminating device includes a cylinder discriminating section. A crank rotor includes first and second non-tooth portions asymmetrically positioned on the crank rotor. The first non-tooth portion is positioned to correspond to a top dead center of a specific cylinder. A crank signal is outputted when each of the plurality of the tooth portions is detected. A cam signal is outputted when a predetermined tooth portion of a cam rotor is detected. And, the cylinder discriminating section discriminates the specific cylinder by detecting the first non-tooth portion based on number of the crank signals detected during a time period from a time when one of the first and second non-tooth portions is detected to a time when the other of the first and second non-tooth portions is detected, and by detecting whether or not the cylinder discriminating section detects the cam signal during the same time period.

摘要翻译： 气缸鉴别装置包括气缸鉴别部分。 曲柄转子包括不对称地定位在曲柄转子上的第一和第二非齿部分。 第一非齿部被定位成对应于特定气缸的上止点。 当检测到多个齿部中的每一个时，输出曲柄信号。 当检测到凸轮转子的预定齿部时，输出凸轮信号。 并且，气缸识别部通过基于从检测到第一和第二非齿部中的一个时刻到时间期间检测到的曲柄信号的数量来检测第一非齿部分来识别特定气缸， 检测第一和第二非齿部分中的另一个，并且通过检测气缸识别部分是否在同一时间段内检测到凸轮信号。

公开(公告)号：US20060213262A1

公开(公告)日：2006-09-28

申请号：US11386791

申请日：2006-03-23

申请人： Hiroshi Arita ,  Takahiro Aki ,  Takeshi Maenaka

发明人： Hiroshi Arita ,  Takahiro Aki ,  Takeshi Maenaka

IPC分类号： G01L3/26

CPC分类号： F02P7/061

摘要： A cylinder discriminating device includes a cylinder discriminating section. A crank rotor includes first and second non-tooth portions asymmetrically positioned on the crank rotor. The first non-tooth portion is positioned to correspond to a top dead center of a specific cylinder. A crank signal is outputted when each of the plurality of the tooth portions is detected. A cam signal is outputted when a predetermined tooth portion of a cam rotor is detected. And, the cylinder discriminating section discriminates the specific cylinder by detecting the first non-tooth portion based on number of the crank signals detected during a time period from a time when one of the first and second non-tooth portions is detected to a time when the other of the first and second non-tooth portions is detected, and by detecting whether or not the cylinder discriminating section detects the cam signal during the same time period.

摘要翻译： 气缸鉴别装置包括气缸鉴别部分。 曲柄转子包括不对称地定位在曲柄转子上的第一和第二非齿部分。 第一非齿部被定位成对应于特定气缸的上止点。 当检测到多个齿部中的每一个时，输出曲柄信号。 当检测到凸轮转子的预定齿部时，输出凸轮信号。 并且，气缸识别部通过基于从检测到第一和第二非齿部中的一个时刻到时间期间检测到的曲柄信号的数量来检测第一非齿部分来识别特定气缸， 检测第一和第二非齿部分中的另一个，并且通过检测气缸识别部分是否在同一时间段内检测到凸轮信号。

公开(公告)号：US20060122765A1

公开(公告)日：2006-06-08

申请号：US11292077

申请日：2005-12-02

申请人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

发明人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

IPC分类号： F02P5/152 ,  G01L23/22

CPC分类号： G01L23/225 ,  F02D41/2461 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/152

摘要： A knock detection apparatus which is capable of changing a knock control starting time period appropriately so as to prevent erroneous knock determination, to thereby expand a knock control range. A peak value acquisition unit acquires a peak value of a vibration of an internal combustion engine during each rotation cycle of a crankshaft of the engine. A background calculator calculates a background by averaging peak values acquired by the peak value acquisition unit. A knock determination unit performs knock determination based on whether a peak value acquired by the peak value acquisition unit is higher than a predetermined level above the background, and feedback controls knock in the engine according to a result of the knock determination. A temperature acquisition unit acquires a temperature of the engine during a start of the engine. A knock determination controller inhibits operation of the knock determination unit until a predetermined time period determined according to the engine temperature acquired by the temperature acquisition unit has elapsed.

摘要翻译： 一种爆震检测装置，其能够适当地改变爆震控制开始时间，以防止错误的爆震判定，从而扩大爆震控制范围。 峰值获取单元获取发动机的曲轴的每个旋转周期期间的内燃机的振动的峰值。 背景计算器通过平均由峰值获取单元获取的峰值计算背景。 敲击判定单元基于由峰值获取单元获取的峰值是否高于背景的预定水平来执行爆震判定，并且反馈根据爆震判定的结果控制发动机的爆震。 温度检测单元在发动机启动期间获取发动机的温度。 敲击判定控制器禁止敲击判定单元的动作，直到根据由温度获取部获取的发动机温度而决定的预定时间段过去。

公开(公告)号：US07243020B2

公开(公告)日：2007-07-10

申请号：US11292077

申请日：2005-12-02

申请人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

发明人： Takao Nakao ,  Hirofumi Taguchi ,  Hiroshi Arita ,  Takahiro Aki

IPC分类号： F02P5/152 ,  G01L23/22

CPC分类号： G01L23/225 ,  F02D41/2461 ,  F02D2200/023 ,  F02D2200/0414 ,  F02P5/152

摘要： A knock detection apparatus which is capable of changing a knock control starting time period appropriately so as to prevent erroneous knock determination, to thereby expand a knock control range. A peak value acquisition unit acquires a peak value of a vibration of an internal combustion engine during each rotation cycle of a crankshaft of the engine. A background calculator calculates a background by averaging peak values acquired by the peak value acquisition unit. A knock determination unit performs knock determination based on whether a peak value acquired by the peak value acquisition unit is higher than a predetermined level above the background, and feedback controls knock in the engine according to a result of the knock determination. A temperature acquisition unit acquires a temperature of the engine during a start of the engine. A knock determination controller inhibits operation of the knock determination unit until a predetermined time period determined according to the engine temperature acquired by the temperature acquisition unit has elapsed.

摘要翻译： 一种爆震检测装置，其能够适当地改变爆震控制开始时间，以防止错误的爆震判定，从而扩大爆震控制范围。 峰值获取单元获取发动机的曲轴的每个旋转周期期间的内燃机的振动的峰值。 背景计算器通过平均由峰值获取单元获取的峰值计算背景。 敲击判定单元基于由峰值获取单元获取的峰值是否高于背景的预定水平来执行爆震判定，并且反馈根据爆震判定的结果控制发动机的爆震。 温度检测单元在发动机启动期间获取发动机的温度。 敲击判定控制器禁止敲击判定单元的动作，直到根据由温度获取部获取的发动机温度而决定的预定时间段过去。

公开(公告)号：US06379284B1

公开(公告)日：2002-04-30

申请号：US09570430

申请日：2000-05-12

申请人： Akihiro Hanai ,  Mikio Hamada ,  Yasuaki Kyokane ,  Takahiro Aki

发明人： Akihiro Hanai ,  Mikio Hamada ,  Yasuaki Kyokane ,  Takahiro Aki

IPC分类号： F02D500

CPC分类号： F02D41/062 ,  F02D2200/0404 ,  F02D2200/501 ,  F02D2200/602 ,  F02N99/002 ,  Y10T477/865

摘要： A fuel injection control apparatus for engines used in vehicles, particularly, a golf-cart is disclosed. An engine 1 is operated by means of an accelerator pedal 15 and is assisted with its startup by a starter 7. An injector 17 is controlled to inject fuel pumped by a fuel pump 19 into an air-intake passage 2. A controller 40 controls the starter 7, the injector 17, and the fuel pump 19, and others. Upon depression of the accelerator pedal 15 to start up the engine 1, the controller 40 actuates the starter 7 and simultaneously actuates the injector 17 only one time for initial injection. Specifically, the controller 40 controls such that the initial injection and the ignition associated therewith are performed even if no pulse signal is input from a crank angle sensor 33.

摘要翻译： 公开了一种用于车辆，特别是高尔夫球车中的发动机的燃料喷射控制装置。 发动机1通过加速器踏板15操作，并通过启动器7进行辅助。喷射器17被控制以将由燃料泵19泵送的燃料喷射到进气通道2中。控制器40控制 起动器7，喷射器17和燃料泵19等。 当按下加速器踏板15以启动发动机1时，控制器40致动起动器7并且同时致动喷射器17仅一次用于初始喷射。 具体地说，控制器40进行控制，使得即使没有从曲柄角传感器33输入脉冲信号，也执行初始喷射和与其相关的点火。

公开(公告)号：US06467466B1

公开(公告)日：2002-10-22

申请号：US09624250

申请日：2000-07-24

申请人： Masahiro Maekawa ,  Takahiro Aki ,  Kohei Igarashi ,  Hiroki Matsuoka

发明人： Masahiro Maekawa ,  Takahiro Aki ,  Kohei Igarashi ,  Hiroki Matsuoka

IPC分类号： F02B4300

CPC分类号： F02D41/0027 ,  F02D19/021 ,  F02D19/025 ,  F02D19/027 ,  F02D41/22 ,  F02D2041/224 ,  F02D2041/225 ,  F02M21/0242 ,  F02M21/0278 ,  Y02T10/32 ,  Y02T10/40

摘要： A method and apparatus is provided that can detect even small amounts of gas leakage and can perform a proper fail-safe operation when gas leakage is detected. When an engine is stopped and a gas shut-off valve is closed, the amount of decrease of gas pressure is calculated by comparing initial gas pressure with the gas pressure detected after the elapse of a prescribed time, to detect gas leakage. In one embodiment, gas leakage is detected by calculating the accumulated value of the amount of decrease of gas pressure each time the engine is stopped. In another embodiment, gas leakage is detected by calculating the rate of decrease of gas pressure from the initial gas pressure to the gas pressure detected after the elapse of a prescribed time. In a further embodiment, gas leakage is detected by calculating the accumulated value of the rate of decrease of gas pressure each time the engine is stopped. Further, when gas leakage is detected, the gas shut-off valve is closed and a warning is issued.

摘要翻译： 提供了能够检测甚至少量的气体泄漏的方法和装置，并且当检测到气体泄漏时可以执行适当的故障安全操作。 当发动机停止并且关闭气体切断阀时，通过将初始气体压力与经过规定时间后检测到的气体压力进行比较来计算气体压力的降低量，以检测气体泄漏。 在一个实施例中，通过计算每次发动机停止时的气压降低量的累积值来检测气体泄漏。 在另一个实施例中，通过计算从初始气体压力到经过规定时间之后检测到的气体压力的气体压力的降低率来检测气体泄漏。 在另一实施例中，通过计算每次发动机停止时的气压降低率的累积值来检测气体泄漏。 此外，当检测到气体泄漏时，关闭气体截止阀并发出警告。