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    • 4. 发明专利
    • Actuator device of vehicle control system
    • 车辆控制系统的执行器装置
    • JP2009040424A
    • 2009-02-26
    • JP2008301528
    • 2008-11-26
    • Hitachi Ltd株式会社日立製作所
    • SAKURAI KOHEIKANEKAWA NOBUYASUMURABAYASHI FUMIOWATABE MITSURUHAYASHIBARA TOSHIO
    • B60R16/02
    • PROBLEM TO BE SOLVED: To provide a vehicle control system and an automobile using the system at low cost by reducing the cost for a heat radiation component by facilitating the heat radiation of an actuator driver, and enhancing miniaturization and versatility of a central control device.
      SOLUTION: The vehicle control system comprises a central control device and a plurality of actuators. The control system has actuator drivers for driving the actuators on the actuator side. Each actuator driver has a self-diagnosis unit, a self-protection unit and a communication control unit, and is self-independent, and dispersed corresponding to each actuator.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了通过促进致动器驱动器的热辐射降低散热部件的成本,以低成本提供车辆控制系统和汽车,并且增强了中心的小型化和多功能性 控制装置 解决方案:车辆控制系统包括中央控制装置和多个致动器。 控制系统具有用于驱动致动器侧致动器的致动器驱动器。 每个致动器驱动器具有自诊断单元,自保护单元和通信控制单元,并且是独立的,并且相应于每个致动器分散。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Interface device
    • 接口设备
    • JP2007080288A
    • 2007-03-29
    • JP2006307900
    • 2006-11-14
    • Hitachi Ltd株式会社日立製作所
    • KIKUCHI MUTSUMIMURABAYASHI FUMIOSASE TAKASHIWATANABE TOKUOAJIRO YUUJI
    • G06F3/00
    • H01L2924/14
    • PROBLEM TO BE SOLVED: To provide an interface device using a dielectrically isolated substrate that sufficiently suppresses malfunction and characteristic degradation due to noise.
      SOLUTION: In the interface device, in which an SOI substrate 414 is divided, by a buried insulation film 412 and a region insulation part 410, into a semiconductor support substrate region 411, a controller side region 407, and a network side region 408, and capacitive isolator circuits 405 and 406 are partly formed in the network side region 408, the semiconductor support substrate region 411 and the network side region 408 are connected to a network power supply to continuously maintain the same potential.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种使用能够充分抑制因噪声引起的故障和特性劣化的介电隔离基板的接口装置。 解决方案:在其中SOI衬底414被掩埋绝缘膜412和区域绝缘部分410分成半导体支撑衬底区域411,控制器侧区域407和网络侧的接口器件中 区域408和电容隔离电路405和406部分地形成在网络侧区域408中,半导体支撑衬底区域411和网络侧区域408连接到网络电源以连续地保持相同的电位。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • SOFT START CIRCUIT FOR SWITCHING POWER SOURCE
    • JP2002218737A
    • 2002-08-02
    • JP2001009659
    • 2001-01-18
    • HITACHI LTD
    • SASE TAKASHIMURABAYASHI FUMIOKIKUCHI MUTSUMI
    • H02M3/00H02M3/335
    • PROBLEM TO BE SOLVED: To provide a soft start circuit which has a simple circuit configuration, without having to use a capacitor for setting a soft start time, and built LSI in the soft start circuit. SOLUTION: This switching power source which include a triangular wave generating circuit, an error amplifier, and a PWM comparator, and obtains a PWM pulse by comparing the triangular wave amplitude output of the triangular wave generating circuit with the output voltage of the error amplifier as a reference (comparison) voltage by the PWM comparator under normal conditions is formed out of a soft start reference value setting part of a group of resistor nets and a group of switches using the same means as an upper/lower value setting part consisting of a resistor net and a switches which set the upper/lower value of the triangular wave amplitude of the triangular wave generating circuit, when the power source starts up, and a clock circuit which calculates a triangular wave period of the triangular wave generating circuit for switching the group of switches, to obtain a plurality of arbitrary soft start time.
    • 10. 发明专利
    • RECEIVING CIRCUIT
    • JP2001053812A
    • 2001-02-23
    • JP22370099
    • 1999-08-06
    • HITACHI LTD
    • SASE TAKASHIMURABAYASHI FUMIOKIKUCHI MUTSUMI
    • H04L25/03H04L25/02
    • PROBLEM TO BE SOLVED: To obtain a circuit by which capacitance is reduced in an AC connection capacitor and edge information is obtained by means of an optical operation level by providing pair of resistor networks, a pair of AC connections circuits, a pair of converters and an RS filp-flop for reproducing a digital signal corresponding to the received signals at the ends of CANH and CANL with the outputs of the converters as an input signal. SOLUTION: The pair of resistor networks 10a and 10b respectively divide the voltages of the received signals at the ends of buses CANH and CANL. The pair of AC connection circuits respectively generate edge information from the output signals of the pair of resistor networks 10a and 10b. The pair of converters execute comparison through the use of the pair of output signals from the pair of AC connection circuits, one detects a rising edge and the other detects a falling edge. The RS flip flop FF reproduces the digital signals corresponding to the received signals at the ends of CANH and CANL by adopting one output of the pair of converters as a set input signal and the other output as a reset input signal.