公开(公告)号：US08896981B2

公开(公告)日：2014-11-25

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 ,  H01H47/32

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。

公开(公告)号：US09817707B2

公开(公告)日：2017-11-14

申请号：US14886336

申请日：2015-10-19

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akito Itou ,  Naoki Maeda ,  Masayuki Tsuda ,  Atsuko Yokoyama

IPC: G06F11/07

CPC classification number: G06F11/0757 ,  G06F11/0706

Abstract: A controller includes a microcomputer that operates in a normal mode or in a low power mode and communicates with an external device, a monitor circuit that monitors an operation state of the microcomputer based on a monitor signal output from the microcomputer, and a start circuit that controls a drive of the monitor circuit. Communication signals exchanged between the microcomputer and the external device include a dominant state and a recessive state, and the start circuit monitors the communication signals. When the communication signals in the low power mode of the microcomputer include the dominant state, the start circuit puts the monitor circuit in a monitoring state. When no monitor signal is input from the microcomputer to the monitor circuit that is operating in the monitoring state, the monitor circuit determines that an abnormality has occurred in the microcomputer.

公开(公告)号：US09436242B2

公开(公告)日：2016-09-06

申请号：US14320912

申请日：2014-07-01

Applicant: DENSO CORPORATION

Inventor： Akito Itou

IPC: G06F11/00 ,  G06F1/24 ,  G06F11/30

CPC classification number: G06F1/24 ,  G06F11/3062 ,  G06F2201/81

Abstract: A reset signal control apparatus outputs a reset signal to a microcomputer to restrict a malfunction of the microcomputer when the microcomputer is started. The reset signal control apparatus outputs the reset signal to the microcomputer at least until a clock signal provided by an oscillation circuit and based on which the microcomputer operates is stabilized. The reset signal control apparatus includes a power supply section, a measuring section, and an output ending section. The power supply section supplies a power to the oscillation circuit and the microcomputer. The measuring section measures a consumption current of the oscillation circuit and the microcomputer. The output ending section determines that the clock signal provided by the oscillation circuit is stabilized and ends an output of the reset signal to the microcomputer when the consumption current becomes equal to or higher than a predetermined threshold value.

Abstract translation: 复位信号控制装置在微型计算机启动时将复位信号输出到微型计算机以限制微计算机的故障。 复位信号控制装置至少在由振荡电路提供的时钟信号和微机操作的时钟信号稳定的情况下将复位信号输出到微计算机。 复位信号控制装置包括电源部，测量部和输出结束部。 电源部分向振荡电路和微型计算机供电。 测量部分测量振荡电路和微型计算机的消耗电流。 当消耗电流变得等于或高于预定阈值时，输出结束部分确定由振荡电路提供的时钟信号是稳定的并且结束复位信号到微计算机的输出。

公开(公告)号：US09420692B2

公开(公告)日：2016-08-16

申请号：US14609742

申请日：2015-01-30

Applicant: DENSO CORPORATION

Inventor： Akito Itou ,  Junji Sugiura ,  Hirotsugu Kato

IPC: G01R31/02 ,  H05K1/18 ,  H05K1/02

CPC classification number: H05K1/181 ,  H05K1/0231 ,  H05K1/0262 ,  H05K2201/0746 ,  H05K2201/09972

Abstract: An electronic control device for executing fundamental and additional functions includes: a fundamental circuit element that executes the fundamental function; an additional circuit element that executes the additional function; and a printed wiring board having a rectangular shape divided into first and second regions. The fundamental circuit element is mounted in the first region, and the additional circuit element is mounted in the second region. The fundamental circuit element includes an operation voltage generating circuit for supplying an operation voltage to at least a part of the fundamental and additional circuit elements and a bypass capacitor for functioning for the additional circuit element. The bypass capacitor is connected to a power source wiring pattern for supplying the operation voltage to the additional circuit element. The bypass capacitor is arranged in the first region at a position nearer the second region than the operation voltage generating circuit.

Abstract translation: 用于执行基本和附加功能的电子控制装置包括：执行基本功能的基本电路元件; 执行附加功能的附加电路元件; 以及划分为第一和第二区域的具有矩形形状的印刷线路板。 基本电路元件安装在第一区域中，并且附加电路元件安装在第二区域中。 基本电路元件包括用于向至少一部分基波和附加电路元件提供操作电压的操作电压产生电路和用于附加电路元件的旁路电容器。 旁路电容器连接到用于向附加电路元件提供工作电压的电源布线图案。 旁路电容器布置在比操作电压产生电路更靠近第二区域的位置处的第一区域中。

公开(公告)号：US09383799B2

公开(公告)日：2016-07-05

申请号：US14107111

申请日：2013-12-16

Applicant: DENSO CORPORATION

Inventor： Akito Itou

IPC: G06F1/32 ,  H04L12/40

CPC classification number: G06F1/3209 ,  H04L12/40039 ,  H04L12/40052 ,  H04L2012/40215 ,  H04L2012/40234

Abstract: When an ECU serving as a communication node is under sleep mode, a switch portion in a transceiver connects a data transmit port of a microcomputer to a memory controller. The microcomputer sends, to the memory controller, a code write-in request for writing a code while outputting a write data that is written as the code. The data transmit port, which is to output a communication data, is commonly used in order to output the write-in request and the write data; this suppresses the increase in the number of connection lines between the microcomputer and the transceiver and the increase in the number of ports of the microcomputer.

Abstract translation: 当用作通信节点的ECU处于睡眠模式时，收发器中的开关部分将微计算机的数据发送端口连接到存储器控制器。 微型计算机向存储器控制器发送写入代码的代码写入请求，同时输出写入代码的写入数据。 通常使用用于输出通信数据的数据发送端口，以便输出写入请求和写入数据; 这抑制了微型计算机与收发器之间的连接线数的增加以及微型计算机的端口数的增加。

公开(公告)号：US09166910B2

公开(公告)日：2015-10-20

申请号：US14106917

申请日：2013-12-16

Applicant: DENSO CORPORATION

Inventor： Akito Itou ,  Michio Nakamura

IPC: H04L12/721 ,  H04L12/715

CPC classification number: H04L45/44 ,  H04L45/04

Abstract: A first receiver receives an activation signal from a first network and gives the activation signal to an input side of a second transmitter via a first connection line; thereby, the activation signal is sent out via the second transmitter to a second network. Thus, the activation signal is not directly transmitted from the first network to the second network; instead, the activation signal is transmitted by using conversion functions of the first receiver and the second transmitter. This configuration can prevent occurrence of distortion or attenuation in the activation signal. The activation signal from the first network thus enables ECUs belonging to the second network to be activated certainly without delay.

Abstract translation: 第一接收器从第一网络接收激活信号，并经由第一连接线将激活信号发送给第二发射机的输入端; 由此，激活信号经由第二发射机发送到第二网络。 因此，激活信号不直接从第一网络发送到第二网络; 而是通过使用第一接收机和第二发射机的转换功能来发送激活信号。 该配置可以防止激活信号中的失真或衰减的发生。 因此，来自第一网络的激活信号因此使属于第二网络的ECU能够无延迟地被激活。