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公开(公告)号：US09796275B2
公开(公告)日：2017-10-24
申请号：US14615631
申请日：2015-02-06
Applicant: DENSO CORPORATION
Inventor： Akito Itou , Junji Sugiura , Hirotsugu Kato
CPC classification number: B60L11/12 , B60L3/0084 , B60L3/12 , B60R16/03 , F02D41/062 , G06F1/3209 , Y02T10/7077
Abstract: A vehicular electronic control device activated according to an on-state signal from a main switch and a wake-up signal from an external device includes: a microcomputer; a voltage generating circuit for the microcomputer; a start circuit that generates the operation voltage with the voltage generating circuit when the on-state signal or the wake-up signal input; a printed wiring board; and a transmission wiring pattern that transmits the on-state signal. A first region of the board mounts the microcomputer and the voltage generating circuit, which activate the vehicular electronic control device when the main switch turns on. A second region of the board mounts the start circuit, which activates the vehicular electronic control device according to the wake-up signal. The transmission wiring pattern extends from the first region to reach the second region.
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2.发明授权Circuitry for controlling an output from an electronic control unit including two processors mutually monitoring each other 有权用于控制包括彼此相互监测的两个处理器的电子控制单元的输出的电路公开(公告)号：US09519337B2
公开(公告)日：2016-12-13
申请号：US14496084
申请日：2014-09-25
Applicant: DENSO CORPORATION
Inventor： Akito Itou
CPC classification number: G06F1/3293 , G06F1/3203 , G06F1/3243 , G06F1/3287 , G06F1/3296 , Y02D10/122 , Y02D50/20
Abstract: An electronic control unit of one embodiment includes first and second microcomputers for mutually monitoring operations, an output circuit for outputting a signal that is outputted from at least one of the first and second microcomputers, a power supply circuit for supplying electric power to the output circuit, and a stop unit for stopping supply of the electric power from the power supply circuit to the output circuit. The first microcomputer has operation modes including a normal mode and a low power mode. In the low power mode, the first microcomputer stops monitoring the operation of the second microcomputer and outputs a power supply stop signal that operates the stop unit to stop the supply of the electric power from the power supply circuit to the output circuit.
Abstract translation: 一个实施例的电子控制单元包括用于相互监视操作的第一和第二微型计算机，用于输出从第一和第二微型计算机中的至少一个输出的信号的输出电路，用于向输出电路提供电力的电源电路 以及用于停止从电源电路向输出电路供给电力的停止单元。 第一微型计算机具有包括正常模式和低功率模式的操作模式。 在低功率模式中，第一微型计算机停止监视第二微型计算机的操作，并输出操作停止单元的电源停止信号，以停止从电源电路向输出电路的电力供应。
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公开(公告)号：US09303572B2
公开(公告)日：2016-04-05
申请号：US13737379
申请日：2013-01-09
Applicant: DENSO CORPORATION
Inventor： Daisuke Kawakami , Akito Itou , Ryotaro Kuno
CPC classification number: F02D35/027 , F02D35/023 , F02D37/02 , F02D2041/1432 , F02D2041/281 , F02D2041/286 , F02P5/152 , F02P5/1522
Abstract: A microcomputer is formed of a CPU and a detection circuit and inputs sensor signals of a vibration sensor and a rotation sensor. The detection circuit includes an AD converter circuit for AD conversion of the sensor signal of the vibration sensor at a predetermined sampling interval, a peak hold circuit for detecting a peak value of the sensor signal, a RAM for storing the peak value, a counter for detecting a crank angle at a peak value detection time, and an angle calculation part. The microcomputer divides a pre-ignition check interval into plural interval units and checks the pre-ignition based on the peak value detected in each unit interval. The pre-ignition and the knock are checked by using different threshold values in an interval, in which the pre-ignition check interval overlaps a knock check interval.
Abstract translation: 微型计算机由CPU和检测电路构成，并输入振动传感器和旋转传感器的传感器信号。 该检测电路包括用于以预定采样间隔对振动传感器的传感器信号进行AD转换的AD转换器电路，用于检测传感器信号的峰值的峰值保持电路，用于存储峰值的RAM，用于存储峰值的RAM， 在峰值检测时间检测曲柄角，以及角度计算部。 微型计算机将点火前检查间隔划分为多个间隔单位，并根据在每个单位间隔内检测到的峰值检查预燃点。 通过在间隔期间使用不同的阈值来检查预点火和爆震，其中预燃点检查间隔与爆震检查间隔重叠。
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公开(公告)号：US09037386B2
公开(公告)日：2015-05-19
申请号：US13653500
申请日：2012-10-17
Applicant: DENSO CORPORATION
Inventor： Daisuke Kawakami , Akito Itou , Ryotaro Kuno
CPC classification number: G06F19/00 , F02D41/009 , F02D41/28 , F02D2041/1432 , F02D2041/281 , F02D2250/14
Abstract: A sensor signal processing device includes an AD conversion section, a filter section, a timing signal generation section, and an arithmetic section. The timing signal generation section generates a signal synchronized with a crank angle of an engine based on a signal indicating the crank angle and generates a data acquisition timing signal by compensating the signal synchronized with the crank angle with a delay time of the filter. The arithmetic section acquires a plurality of sensor signals, which is transmitted from a sensor, converted from an analog signal to a digital signal by the AD conversion section, and filtered by the filter section, in a term before and after receiving the data acquisition timing signal and generates a data synchronized with the data acquisition timing signal.
Abstract translation: 传感器信号处理装置包括AD转换部，滤波部，定时信号生成部和运算部。 定时信号生成部基于表示曲柄角的信号，生成与发动机的曲柄角同步的信号，并通过以滤波器的延迟时间补偿与曲柄角同步的信号来生成数据采集定时信号。 算术部从传感器获取从AD转换部从模拟信号发送到数字信号的多个传感器信号，并且在接收数据采集定时之前和之后，由滤波器部分进行滤波 信号并产生与数据采集定时信号同步的数据。
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公开(公告)号：US08895863B2
公开(公告)日：2014-11-25
申请号：US13726827
申请日：2012-12-26
Applicant: Denso Corporation
Inventor： Masashi Inaba , Akito Itou
CPC classification number: H05K1/0201 , H05K1/0206 , H05K1/0207 , H05K2201/10166 , H05K2201/10969
Abstract: A multilayer printed circuit board includes an insulating substrate, circuit layers arranged in the insulating substrate, an electronic component, an electrode disposed on the circuit layer exposed from a surface of the insulating substrate and including a soldered portion at which a terminal of the electronic component is soldered, an internal layer conductor disposed on the circuit layer located inside the insulating substrate and defining through holes in a radial manner centering on the soldered portion, a heat releasing conductor disposed on the circuit layer next to the circuit layer on which the internal layer conductor is disposed, and connection vias inserted in the through holes and coupling the electrode and the heat releasing conductor so as to enable a heat transfer between the electrode and the heat releasing conductor. The internal layer conductor and the heat releasing conductor overlap a whole area of the soldered portion.
Abstract translation: 多层印刷电路板包括绝缘基板，布置在绝缘基板中的电路层，电子部件，设置在从绝缘基板的表面露出的电路层上的电极，并且包括焊接部分，电极部件的端子 焊接，设置在位于绝缘基板内部的电路层上的内部层导体，以以焊接部分为中心的径向方式限定通孔;布置在电路层旁边的放热导体，其中内层 布置导体，并且连接通孔插入到通孔中并联接电极和散热导体，以便能够在电极和放热导体之间传热。 内层导体和散热导体与焊接部分的整个区域重叠。
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Patent Agency Ranking
公开(公告)号：US09588579B2
公开(公告)日：2017-03-07
申请号：US14873493
申请日：2015-10-02
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Akito Itou , Naoki Maeda , Masayuki Tsuda , Atsuko Yokoyama
CPC classification number: G06F1/3296 , G06F1/263 , G06F1/28 , G06F1/305 , G06F1/3206 , G06F1/3243
Abstract: An electronic control unit includes a microcomputer, a monitoring unit, a clock-generating oscillator circuit, a first power circuit supplying power to the microcomputer, and a second power circuit supplying power to the monitor microcomputer. The first power circuit includes a first switching power source including a first transistor and a first series power source including a second transistor. The second power circuit includes a second switching power source including a third transistor and a second series power source including a fourth transistor. Further, the ECU includes a power control circuit controlling each of the transistors and an oscillation stop detection circuit. When a stop of oscillation is detected, the power control circuit switches ON the second transistor, and switches OFF the fourth transistor, thereby diminishing a no-monitoring period of the microcontroller during a stop of the clock output.
Abstract translation: 电子控制单元包括微型计算机，监视单元，时钟产生振荡电路，向微型计算机供电的第一电源电路和向监视微型计算机供电的第二电源电路。 第一电源电路包括第一开关电源，其包括第一晶体管和包括第二晶体管的第一串联电源。 第二电源电路包括包括第三晶体管的第二开关电源和包括第四晶体管的第二串联电源。 此外，ECU包括控制每个晶体管的功率控制电路和振荡停止检测电路。 当检测到振荡停止时，功率控制电路将第二晶体管导通，并切换第四晶体管，从而在时钟输出停止期间减少微控制器的无监视周期。
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公开(公告)号：US20130114178A1
公开(公告)日：2013-05-09
申请号：US13662623
申请日：2012-10-29
Applicant: DENSO CORPORATION
Inventor： RYO ADACHI , Akito Itou , Katsumi Matsuo , Tsuneyoshi Isozaki
IPC: H01H47/22
CPC classification number: H01H47/325
Abstract: A relay drive unit drives a relay by supplying a power source voltage from a battery. The relay drive unit includes a power source voltage detector, a drive signal generator, and a relay drive circuit. The power source voltage detector detects the power source voltage. The drive signal generator generates a PWM signal as a drive signal for maintaining the relay in an ON state. The PWM signal has a preset duty ratio according to a magnitude of the power source voltage detected by the power source voltage detector. The relay drive circuit turns a supply of the power source voltage from the battery on/off based on a duty ratio of the drive signal generated by the drive signal generator.
Abstract translation: 继电器驱动单元通过从电池提供电源电压来驱动继电器。 继电器驱动单元包括电源电压检测器，驱动信号发生器和继电器驱动电路。 电源电压检测器检测电源电压。 驱动信号发生器产生PWM信号作为用于将继电器维持在接通状态的驱动信号。 PWM信号根据由电源电压检测器检测的电源电压的大小具有预设占空比。 继电器驱动电路基于由驱动信号发生器产生的驱动信号的占空比来开启/关闭来自电池的电源电压的供给。
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公开(公告)号：US09740254B2
公开(公告)日：2017-08-22
申请号：US14873492
申请日：2015-10-02
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Akito Itou , Naoki Maeda , Masayuki Tsuda , Atsuko Yokoyama
CPC classification number: G06F1/26 , G06F1/3209
Abstract: An electronic control unit includes a microcomputer and a power circuit that supplies an electric power to the microcomputer. The microcomputer and the power circuit respectively operate in a normal operation mode and in a low power operation mode that consumes less power than the normal operation mode. The electronic control unit further includes a mode switcher for switching the operation modes of the microcomputer and the power circuit according to an input signal from an external device. When a mode switch signal for switching the operation mode of both devices to the normal operation mode, the mode switcher first switches the power circuit to the normal operation mode and subsequently switches the microcomputer to the normal operation mode, which prevents a reset operation of the microcomputer without using a large capacity capacitor.
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公开(公告)号：US09672175B2
公开(公告)日：2017-06-06
申请号：US14018456
申请日：2013-09-05
Applicant: DENSO CORPORATION
Inventor： Akito Itou , Takeyoshi Hirao
IPC: G06F13/00 , G06F13/36 , H04L12/403
CPC classification number: G06F13/36 , H04L12/403
Abstract: A communication system having a plurality of communication nodes connected by a communication bus is provided. The system allows at least one non-periodical data message to have a higher priority order than a periodical data message that is transmitted in response to a periodically-transmitted reference message from a master node ECU. In such a manner, a transmission of an urgent non-periodical data message has a higher priority than a transmission of the periodical data message. As a result, a wait time before a start of a transmission of the non-periodical data message is reduced.
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公开(公告)号：US09400543B2
公开(公告)日：2016-07-26
申请号：US14100099
申请日：2013-12-09
Applicant: DENSO CORPORATION
Inventor： Akito Itou
CPC classification number: G06F1/3234 , G06F1/3209 , H04L12/12 , H04L12/40039 , H04L2012/40273 , Y02D50/20 , Y02D50/40
Abstract: A main body ECU as a slave node includes a switch. The switch is under OFF state when a prohibition signal is outputted from a verification ECU as a master node and under ON state when the prohibition signal is not outputted. The switch is inserted in a reception path between a receive port of a microcomputer of the main body ECU and a receiver of a transceiver that is connected with a communication bus. When the switch is under OFF state, a reception signal outputted by the transceiver is not inputted into the microcomputer of the main body ECU. Therefore, the microcomputer is not activated even if an activation frame is transmitted to the communication bus; this enables the main body ECU to maintain a sleep mode.
Abstract translation: 作为从节点的主体ECU包括开关。 当禁止信号从作为主节点的验证ECU输出并且在禁止信号不输出时处于ON状态时，开关处于OFF状态。 开关插入在主体ECU的微型计算机的接收端口和与通信总线连接的收发器的接收器之间的接收路径中。 当开关处于OFF状态时，由收发器输出的接收信号不被输入到主体ECU的微计算机中。 因此，即使将激活帧发送到通信总线，微计算机也不被激活; 这使得主体ECU能够保持睡眠模式。
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