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    • 31. 发明专利
    • 回転角検出システム
    • 旋转角检测系统
    • JP2015059446A
    • 2015-03-30
    • JP2013192175
    • 2013-09-17
    • 株式会社デンソーDenso Corp
    • MINEDA KENICHI
    • F02D45/00
    • G01D5/245F02D41/009F02D41/28F02D2041/286F02D2250/06
    • 【課題】カウント値の補正が速くなった回転角検出システムを提供する。【解決手段】回転磁束を電気信号に変換する回転角センサ(10)と回転角センサの電気信号に基づいて回転体の回転角を算出する算出部(50)を有する回転角検出システム。回転角センサは、回転方向に沿って等間隔に並んで配置された磁電変換素子(11〜14)、磁電変換素子の出力信号をパルス信号に変換する変換部(20)を有し、算出部は、パルス信号のエッジをカウントするカウンター(52)、カウント値Nを複数の磁電変換素子の総数nで割った値の余りの数pを算出する除算部(53)、除算部にて算出された余りの数pとその余りの数pに対応するパルス信号の入力タイミングを比較する比較部(54)、および、比較部の比較結果に基づいてカウント値Nを補正する補正部(55)を有する。【選択図】図3
    • 要解决的问题:提供在计数值的校正速度上加速的旋转角度检测装置。解决方案:旋转角度检测装置具有将旋转磁通转换成电信号的旋转角度传感器(10),计算 基于旋转角度传感器的电x信号计算旋转体的旋转角度的部分(50)。 旋转角度传感器具有沿旋转方向等间隔配置的磁电转换元件(11〜14),以及将磁电转换元件的输出信号转换为脉冲的转换部(20) 信号。 计算部分具有对脉冲信号的边缘进行计数的计数器(52),减法部分(53)计算通过将计数值N除以多个总数n获得的值的剩余数量p 比较部分(54),其将由减法部分计算的剩余数量p与对应于剩余数量p的脉冲信号的输入定时进行比较,以及校正部分(55),其中 基于比较部分的比较结果来校正计数值N.
    • 33. 发明专利
    • Control device
    • 控制装置
    • JP2014105590A
    • 2014-06-09
    • JP2012257353
    • 2012-11-26
    • Hitachi Automotive Systems Ltd日立オートモティブシステムズ株式会社
    • KOYAMA KATSUYASATO CHIHIROWATABE MITSUHIKO
    • F02D45/00H04L1/08H04L29/08
    • F02P9/002F02D41/26F02D41/266F02D2041/286F02D2250/12H04L1/08H04L29/08
    • PROBLEM TO BE SOLVED: To suppress increase of load of a processor and delay in drive control while taking measures for noise.SOLUTION: An engine control unit has a processor, a driving circuit including a switching element for driving loads such as a fuel injection valve and an ignition device, and a communication circuit for transmitting a control signal from the processor to the driving circuit by serial communication. Here, the control signal includes a command frame for controlling the driving circuit, and a data frame for driving the loads. The engine control unit changes an operating state of the switching element by changing a drive signal Drive for driving the loads when the same prescribed bits of the data frame are continuously received twice from the processor by every prescribed time.
    • 要解决的问题:为了抑制处理器的负载增加并且在采取噪声的措施的同时延迟驱动控制。解决方案:发动机控制单元具有处理器,驱动电路,包括用于驱动负载的开关元件,例如燃料喷射阀 点火装置,以及通过串行通信将控制信号从处理器发送到驱动电路的通信电路。 这里,控制信号包括用于控制驱动电路的命令帧和用于驱动负载的数据帧。 发动机控制单元通过改变用于驱动负载的驱动信号驱动来改变开关元件的工作状态,当数据帧的相同规定位从处理器连续接收两次时,每个规定时间。
    • 37. 发明专利
    • Fuel injection control system
    • 燃油喷射控制系统
    • JP2013122217A
    • 2013-06-20
    • JP2011271404
    • 2011-12-12
    • Denso Corp株式会社デンソー
    • YUKAWA HOSHOKANEKO MASAYUKIYOSHIDA TOMOSHIHIOKI TOSHIKAZU
    • F02D41/36F02D45/00F02M51/06
    • F02D41/266F02D41/40F02D2041/286Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a technology capable of setting an individual node ID for each injector without using a sensor line after the installation of the injector.SOLUTION: In a system in which an injector of each cylinder and an engine control device are bus-connected to a common communication line, when setting a node ID to each injector, an electric signal for node ID assignment in which the node ID to be assigned is expressed by a pulse width is inputted to each injector through a drive signal line which is a transmission line different from the communication line and connecting the engine control device with each injector and transmits an electric signal for opening a fuel injection valve. On the other hand, a setting command of the node ID is transmitted from the engine control device to each injector through the communication line. The injector specifies the node ID to be set to the own injector from the pulse width of the signal input through the drive signal line, and sets the specified node ID as the node ID of the own injector when receiving the setting command of the node ID.
    • 要解决的问题:提供一种能够在安装喷射器之后不使用传感器线路来为每个喷射器设置单个节点ID的技术。 解决方案:在每个气缸和发动机控制装置的喷射器总线连接到公共通信线路的系统中,当为每个喷射器设置节点ID时,用于节点ID分配的电信号,其中节点 通过作为与通信线路不同的传输线的驱动信号线将每个喷射器的脉冲宽度输入到脉冲宽度,并将发动机控制装置与各喷射器连接起来,并且发送用于打开燃料喷射阀的电信号 。 另一方面,通过通信线路从发动机控制装置向每个喷射器发送节点ID的设定命令。 喷射器从通过驱动信号线输入的信号的脉冲宽度指定要设定为自己的喷射器的节点ID,并且当接收到节点ID的设置命令时,将指定的节点ID设置为自身喷射器的节点ID 。 版权所有(C)2013,JPO&INPIT
    • 38. 发明专利
    • Method for determining combustion state of internal combustion engine
    • 用于确定内燃机燃烧状态的方法
    • JP2013113284A
    • 2013-06-10
    • JP2011263181
    • 2011-12-01
    • Diamond Electric Mfg Co Ltdダイヤモンド電機株式会社
    • IZUMI MITSUHIRO
    • F02P17/12F02D15/04F02D21/08F02D41/22F02D45/00
    • F02D35/021F02D35/027F02D41/22F02D2041/286F02P5/152F02P17/12F02P2017/128Y02T10/40
    • PROBLEM TO BE SOLVED: To solve a problems wherein, when an increasing rate is calculated from the increasing amount of ion current and the width of a predetermined crank angle and it is determined based on the increasing rate whether a combustion state is normal combustion, knocking or preignition, the preignition is not detected until the increasing rate advances to the predetermined crank angle, and as a result, start of control for suppressing the preignition is delayed, and a drop in combustion efficiency during a period when the sign of the preignition occurs is left as it is.SOLUTION: The maximum value of the increasing rate is calculated from an ion current waveform detected by an ion current detection circuit. A crank angle sensor detects the angle of a crank at a position where the increasing rate of the ion current waveform is at an maximum. When the increasing rate of the ion current waveform detected by the ion current detection circuit is an increasing rate threshold or higher and the crank angle detected by the crank angle sensor advances in comparison with a crank angle threshold, it is determined that the sign of the preignition or the preignition occurs.
    • 解决的问题为了解决当从离子电流的增加量和预定曲柄角的宽度计算增加率并且基于增加率来确定燃烧状态是否正常的问题时 燃烧,敲击或预警,直到增加速度前进到预定的曲轴角度为止,才能检测出预警,结果,用于抑制预警的开始控制被延迟,并且燃烧效率在标志 预警发生仍然存在。

      解决方案:由离子电流检测电路检测的离子电流波形计算增加率的最大值。 曲柄角传感器检测离子电流波形的增加速度处于最大位置的曲柄角度。 当离子电流检测电路检测到的离子电流波形的增加率为增加率阈值以上时,由曲柄角传感器检测到的曲柄角与曲柄角度阈值相比前进时,判定为 预警或预警发生。 版权所有(C)2013,JPO&INPIT

    • 39. 发明专利
    • Device for detecting abnormal combustion and control device for internal combustion engine
    • 用于检测异常燃烧的装置和用于内燃机的控制装置
    • JP2013019341A
    • 2013-01-31
    • JP2011153837
    • 2011-07-12
    • Denso Corp株式会社デンソー
    • ITO HARUHITO
    • F02D45/00
    • F02D35/027F02D2041/286G01L23/226G01M15/12
    • PROBLEM TO BE SOLVED: To provide a device for detecting abnormal combustion ranging from minor abnormal combustion within an input range of an AD conversion circuit to major subnormal combustion exceeding the input range without a significant increase in cost, and to provide a control device for an internal combustion engine.SOLUTION: The scale of abnormal combustion is determined based on digital data output form an AD conversion circuit 8, and the combustion is specified as major abnormal combustion when an over range detection circuit 10 detects an over range. With this configuration, there is no need to provide separate AD conversion circuits for the determination of major abnormal combustion and minor abnormal combustion, thus achieving inexpensive detection of abnormal combustion.
    • 要解决的问题:提供一种用于检测异常燃烧的装置,其范围从AD转换电路的输入范围内的小的异常燃烧到超过输入范围的主要的超临界燃烧,而不显着增加成本,并且提供控制 内燃机装置 解决方案:根据AD转换电路8的数字数据输出确定异常燃烧的规模,当过量程检测电路10检测到超范围时,燃烧被指定为主要的异常燃烧。 利用这种结构,不需要提供单独的AD转换电路来确定主要的异常燃烧和微小的异常燃烧,从而实现异常燃烧的廉价检测。 版权所有(C)2013,JPO&INPIT