公开(公告)号：US09106990B2

公开(公告)日：2015-08-11

申请号：US13615959

申请日：2012-09-14

申请人： Yasunori Nyu ,  Akito Itou

发明人： Yasunori Nyu ,  Akito Itou

IPC分类号： H04R29/00 ,  H04R3/00

CPC分类号： H04R3/007 ,  H04R29/001 ,  H04R2499/13

摘要： A failure detection device for a vehicle speaker includes a signal generator, an amplifier, a coupling capacitor, a supply circuit, a detection circuit, and a determination section. The signal generator generates a sound signal corresponding to sound outputted from the speaker. The amplifier amplifies the sound signal. The capacitor supplies the amplified sound signal to the speaker. The supply circuit supplies a direct-current test current to the speaker so that the test current does not flow through the capacitor by applying a test voltage to the speaker. The test voltage is higher than a voltage of the sound signal. The detection circuit detects a terminal voltage of the speaker. The determination section determines whether at least one of an open-circuit and a short-circuit occurs in the speaker based on the terminal voltage during application of the sound signal to the speaker.

摘要翻译： 用于车辆扬声器的故障检测装置包括信号发生器，放大器，耦合电容器，电源电路，检测电路和判定部。 信号发生器产生对应于从扬声器输出的声音的声音信号。 放大器放大声音信号。 电容器将放大的声音信号提供给扬声器。 供电电路向扬声器提供直流测试电流，以便通过向扬声器施加测试电压，测试电流不流过电容器。 测试电压高于声音信号的电压。 检测电路检测扬声器的端子电压。 确定部分基于在向扬声器施加声音信号期间的终端电压来确定扬声器中是否发生开路和短路中的至少一个。

公开(公告)号：US08704556B2

公开(公告)日：2014-04-22

申请号：US13324153

申请日：2011-12-13

申请人： Yoshiyuki Hamanaka ,  Tsuneo Maebara ,  Junichi Nagata ,  Tomoyuki Muraho ,  Akito Itou

发明人： Yoshiyuki Hamanaka ,  Tsuneo Maebara ,  Junichi Nagata ,  Tomoyuki Muraho ,  Akito Itou

IPC分类号： H03K3/00

CPC分类号： H03K17/6877 ,  H02M7/5387 ,  H03K17/567 ,  H03K17/602 ,  H03K2017/0806

摘要： A drive circuit supplies a charging current via a charging path to drive the control terminal of a voltage-controlled switching device, with a resistor and a switching device being connected in series in the charging path. A control circuit in an integrated circuit of the drive circuit operates an internal switching device such as to selectively enable/interrupt the charging current and to regulate the voltage drop across the resistor to a fixed value. The switching device connected in the charging path can be readily changed from the internal switching device to an external switching device, in accordance with the operating requirements of the driven switching device.

摘要翻译： 驱动电路通过充电路径提供充电电流，以驱动电压控制开关装置的控制端，电阻器和开关装置串联连接在充电路径中。 驱动电路的集成电路中的控制电路操作内部开关器件，以便选择性地使能/中断充电电流并且将电阻器两端的电压降调整到固定值。 连接在充电路径中的开关装置可以根据从动开关装置的操作要求容易地从内部开关装置改变到外部开关装置。

公开(公告)号：US09074538B2

公开(公告)日：2015-07-07

申请号：US13603500

申请日：2012-09-05

申请人： Akito Itou ,  Ryotaro Kuno ,  Daisuke Kawakami

发明人： Akito Itou ,  Ryotaro Kuno ,  Daisuke Kawakami

IPC分类号： G01M15/12 ,  F02D35/02 ,  G01L23/22 ,  F02D41/28

CPC分类号： F02D35/027 ,  F02D2041/281 ,  F02D2041/286 ,  F02D2200/025 ,  G01L23/225 ,  G01L23/226 ,  G01M15/12

摘要： An abnormal combustion detection apparatus detects an abnormal combustion of an internal combustion based on a vibration waveform from a vibration sensor attached to the internal combustion engine. A gain circuit of the apparatus amplifies or attenuates the vibration waveform from the vibration sensor, an AD conversion circuit converts a waveform provided by the gain circuit to digital data, and a gain switching unit switches a gain of the gain circuit from a small gain value to a large gain value at a gain switch timing. The gain switching unit separates a large abnormal combustion from a small abnormal combustion in an abnormal combustion determination period for maximizing a dynamic range of an AD conversion circuit and for securely detecting a change of waveform amplitude in case of gain switching in an abnormal combustion detection operation.

摘要翻译： 异常燃烧检测装置根据来自安装在内燃机上的振动传感器的振动波形，检测内燃异常燃烧。 该装置的增益电路从振动传感器放大或衰减振动波形，AD转换电路将由增益电路提供的波形转换为数字数据，增益切换单元从增益电路的小增益值切换增益 在增益切换定时处获得大的增益值。 增益切换单元在用于使AD转换电路的动态范围最大化的异常燃烧判定期间，将异常燃烧与较小的异常燃烧分离，并且在异常燃烧检测动作中的增益切换的情况下可靠地检测波形振幅的变化 。

公开(公告)号：US08680897B2

公开(公告)日：2014-03-25

申请号：US13359781

申请日：2012-01-27

申请人： Akito Itou ,  Tsuneo Maebara ,  Takeyasu Komatsu

发明人： Akito Itou ,  Tsuneo Maebara ,  Takeyasu Komatsu

IPC分类号： H03B1/00 ,  H03K17/0412

CPC分类号： H03K17/04126 ,  H03K17/0828 ,  H03K17/127 ,  H03K17/163 ,  H03K17/168

摘要： A switching element control apparatus capable of controlling a switching element that is driven by controlling a voltage on its control terminal properly in response to characteristic information of the switching element. The apparatus includes a constant current circuit that applies a constant current to the control terminal, a voltage-limiting circuit that limits the voltage on the control terminal so as not to exceed a limiting voltage, and a control circuit that controls the constant current circuit to apply the constant current to the control terminal when having received a drive signal for turning on the switching element, and controls the voltage-limiting circuit to limit the voltage on the control terminal for a voltage-limiting time period. The control circuit includes a memory storing the characteristic information and variably sets at least one of the limiting voltage, the voltage-limiting time period, and the constant current in response to the characteristic information.

摘要翻译： 一种开关元件控制装置，其能够响应于开关元件的特性信息，对通过控制端子上的电压进行控制而被驱动的开关元件进行控制。 该装置包括向控制端施加恒定电流的恒流电路，限制控制端子上的电压以不超过限制电压的限压电路，以及控制电路，其将恒流电路控制到 当已经接收到用于接通开关元件的驱动信号时，将恒定电流施加到控制端子，并且控制限压电路限制控制端子上的电压达到限压时间段。 控制电路包括存储特征信息的存储器，并且响应于特征信息可变地设置限制电压，电压限制时间段和恒定电流中的至少一个。

公开(公告)号：US20130070933A1

公开(公告)日：2013-03-21

申请号：US13616115

申请日：2012-09-14

申请人： Akito ITOU

发明人： Akito ITOU

IPC分类号： H04R29/00

CPC分类号： H04R3/007 ,  H04R29/001 ,  H04R2499/13

摘要： A failure detection device for a vehicle speaker includes a signal generator, an amplifier, a coupling capacitor, a detection circuit, and a determination section. The signal generator generates a sound signal corresponding to a sound outputted from the speaker. The amplifier amplifies the sound signal generated by the signal generator. The coupling capacitor supplies the sound signal amplified by the amplifier to the speaker. The detection circuit directly or indirectly detects a terminal voltage on a terminal of the speaker. The determination section determines whether an open-circuit occurs in the speaker based on a phase difference between a phase of the sound signal and a phase of the terminal voltage. The terminal of the speaker is coupled to the coupling capacitor.

摘要翻译： 用于车载扬声器的故障检测装置包括信号发生器，放大器，耦合电容器，检测电路和确定部分。 信号发生器产生对应于从扬声器输出的声音的声音信号。 放大器放大由信号发生器产生的声音信号。 耦合电容器将由放大器放大的声音信号提供给扬声器。 检测电路直接或间接地检测扬声器的端子上的端子电压。 确定部分基于声音信号的相位和终端电压的相位之间的相位差确定扬声器中是否发生开路。 扬声器的端子耦合到耦合电容器。

公开(公告)号：US20130015797A1

公开(公告)日：2013-01-17

申请号：US13534288

申请日：2012-06-27

申请人： Akito ITOU

发明人： Akito ITOU

IPC分类号： H02P6/12

CPC分类号： H02P6/12 ,  H02P29/0241

摘要： A semiconductor integrated circuit device for an electronic control unit includes a drive circuit, a prohibition circuit and a pulse monitor circuit. The drive circuit drives an in-vehicle load according to a driving signal outputted from a microcomputer. The pulse monitor circuit monitors a pulse signal outputted from the microcomputer when the microcomputer is in a normal state. The pulse monitor circuit resets the microcomputer and instructs the prohibition circuit to prohibit the drive circuit from driving the in-vehicle load when it is determined that the microcomputer is in an abnormal state. Further, the pulse monitor circuit instructs the prohibition circuit to permit the drive circuit to drive the in-vehicle load when it is determined that the microcomputer is in the normal state after resetting of the microcomputer.

摘要翻译： 一种用于电子控制单元的半导体集成电路装置，包括驱动电路，禁止电路和脉冲监视电路。 驱动电路根据从微计算机输出的驱动信号来驱动车载负载。 当微型计算机处于正常状态时，脉冲监视电路监视从微计算机输出的脉冲信号。 当确定微型计算机处于异常状态时，脉冲监视电路复位微型计算机并指令禁止电路禁止驱动电路驱动车载负载。 此外，当微型计算机复位之后确定微型计算机处于正常状态时，脉冲监视电路指示禁止电路允许驱动电路驱动车载负载。

公开(公告)号：US08347009B2

公开(公告)日：2013-01-01

申请号：US12846083

申请日：2010-07-29

申请人： Akito Itou ,  Yuu Kimoto

发明人： Akito Itou ,  Yuu Kimoto

IPC分类号： G06F13/368

CPC分类号： H04L12/403 ,  H04L1/1887 ,  H04L12/40163 ,  H04L2012/40215

摘要： A certain ECU transmits a reference message for requiring the other ECUs to transmit data. After transmission of the reference message, each of all the ECUs transmits priority information of its transmit message onto a communication bus, and then detects whether some priority information transmitted from the other ECUs has a higher priority than its own transmitted priority information. If there is detected no priority information of a higher priority than its own transmitted priority information, it transmits a message associated therewith, and then is prohibited to transmit data of the same priority until receiving a next reference message.

摘要翻译： 某个ECU发送用于要求其他ECU发送数据的参考消息。 在发送参考消息之后，所有ECU中的每一个都将其发送消息的优先级信息发送到通信总线上，然后检测从其他ECU发送的一些优先级信息是否比其自己发送的优先级信息具有更高的优先级。 如果没有检测到优先级高于其自己发送的优先级信息的优先级信息，则它发送与其相关联的消息，然后被禁止发送相同优先级的数据，直到接收到下一个参考消息。

公开(公告)号：US20120032503A1

公开(公告)日：2012-02-09

申请号：US13180807

申请日：2011-07-12

申请人： Akito ITOU

发明人： Akito ITOU

IPC分类号： B60L3/00

CPC分类号： B60L11/1803 ,  B60L3/0084 ,  B60L15/20 ,  B60L2240/36 ,  B60L2240/423 ,  B60L2270/20 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7275

摘要： An electronic system has a capacitor that smoothes voltage of a direct current source, a resistance circuit that discharges charge of the capacitor, and an inverter circuit that converts the smoothed voltage into a three-phase ac voltage and applies this ac voltage to a motor. The resistance circuit has resistors and patterned wires disposed on a substrate such that the wires serially connect the resistors to discharge charge of the capacitor. The resistors are aligned in a straight line. The resistors located at positions different from ends of the series of resistors have resistance values lower than resistance values of the resistors located at respective ends of the series of resistors. More preferably, as the position of one resistor approaches the center of the series of resistors, the resistor is set at a lower the resistance value.

摘要翻译： 电子系统具有使直流电源的电压平滑的电容器，对电容器进行放电的电阻电路，以及将平滑电压转换为三相交流电压并将该交流电压施加到电动机的逆变电路。 电阻电路具有设置在基板上的电阻器和图案线，使得电线将电阻器串联连接以对电容器进行放电。 电阻器以直线对齐。 位于与该系列电阻器的端部不同位置的电阻器的电阻值低于位于该系列电阻器各端的电阻器的电阻值。 更优选地，随着一个电阻器的位置接近该系列电阻器的中心，电阻器被设置在较低的电阻值。

公开(公告)号：US20110051870A1

公开(公告)日：2011-03-03

申请号：US12872670

申请日：2010-08-31

申请人： Akito Itou

发明人： Akito Itou

IPC分类号： H04L7/00

CPC分类号： H04L7/0008

摘要： There is provided a communication system that includes master and slave communication ECUs. The master communication ECU sends a clock signal to a clock communication line, with which the communication ECUs synchronize with each other when sending and receiving data. The master and slave communication ECUs then receive the clock signal through the clock line. The ECUs use the received clock signal as a reference timing, which is designated as a transmission/reception reference, and send or receive data to/from data communication lines.

摘要翻译： 提供了包括主从通信ECU的通信系统。 主通信ECU发送时钟信号到时钟通信线路，当发送和接收数据时，通信ECU与之相互同步。 主从通信ECU然后通过时钟线接收时钟信号。 ECU使用接收到的时钟信号作为参考定时，其被指定为发送/接收参考，并且向/从数据通信线路发送或接收数据。

公开(公告)号：US09060218B2

公开(公告)日：2015-06-16

申请号：US13616115

申请日：2012-09-14

申请人： Akito Itou

发明人： Akito Itou

IPC分类号： H04R29/00 ,  H04R3/00

CPC分类号： H04R3/007 ,  H04R29/001 ,  H04R2499/13

摘要： A failure detection device for a vehicle speaker includes a signal generator, an amplifier, a coupling capacitor, a detection circuit, and a determination section. The signal generator generates a sound signal corresponding to a sound outputted from the speaker. The amplifier amplifies the sound signal generated by the signal generator. The coupling capacitor supplies the sound signal amplified by the amplifier to the speaker. The detection circuit directly or indirectly detects a terminal voltage on a terminal of the speaker. The determination section determines whether an open-circuit occurs in the speaker based on a phase difference between a phase of the sound signal and a phase of the terminal voltage. The terminal of the speaker is coupled to the coupling capacitor.

摘要翻译： 用于车载扬声器的故障检测装置包括信号发生器，放大器，耦合电容器，检测电路和确定部分。 信号发生器产生对应于从扬声器输出的声音的声音信号。 放大器放大由信号发生器产生的声音信号。 耦合电容器将由放大器放大的声音信号提供给扬声器。 检测电路直接或间接地检测扬声器的端子上的端子电压。 确定部分基于声音信号的相位和终端电压的相位之间的相位差确定扬声器中是否发生开路。 扬声器的端子耦合到耦合电容器。