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1. 发明公开

EP3190692A4 POWER SUPPLY DEVICE 审中-公开
公开(公告)号：EP3190692A4
公开(公告)日：2018-04-25
申请号：EP15837709
申请日：2015-06-23
申请人： HITACHI AUTOMOTIVE SYSTEMS LTD
发明人： LIU MING , OSADA KENICHI , MAYUZUMI TAKUYA , WATANABE MITSUHIKO , ONO GOICHI
IPC分类号： H02M3/156 , F02D41/20 , H02M1/00 , H02M1/08 , H02M1/44
CPC分类号： H02M3/156 , F02D41/20 , H02M1/08 , H02M1/44 , H02M2001/0009 , H02M2001/0032
摘要： Downsizing of an inductor is achieved while reducing radiation noise of an inductor current. A boosting power supply unit is, for example, provided in an ECU mounted in a vehicle or the like. The boosting power supply unit has a boosting coil, a switching element and a current control unit 16. The current control unit 16 controls the switching element 12 to turn on and off by using a clock signal CK1 with a higher frequency than a pulse signal SPL in a clamping period when the inductor current flowing in the boosting coil is clamped at a preset peak setting current, and controls the switching element to turn on and off by using the pulse signal SPL in periods other than the clamping period. By controlling the switching element to turn on and off in this manner, the inductor current flowing in the boosting coil is controlled.

2. 发明公开

EP3157151A4 ELECTRONIC CONTROL DEVICE 有权转让
公开(公告)号：EP3157151A4
公开(公告)日：2018-04-11
申请号：EP15807336
申请日：2015-06-08
申请人： HITACHI AUTOMOTIVE SYSTEMS LTD
发明人： KURIMOTO HIROFUMI , WATANABE MITSUHIKO
IPC分类号： H02M3/155 , B60L3/04 , B60R16/033 , G05B15/02 , G05F1/56 , H02M1/32 , H02M3/158 , H02P1/16
CPC分类号： B60R16/033 , B60L3/04 , G05B15/02 , G05F1/56 , H02M1/32 , H02M3/155 , H02M3/158 , H02P1/16
摘要： The present invention addresses the problems of: providing a power supply system that does not cause a microcontroller to reset even when an abnormality occurs in the output of a third power supply within a battery voltage range in which an electronic control device ensures operation; and achieving said power supply system at low cost. An electronic control device is provided with: a first power supply circuit that outputs a predetermined voltage; a second power supply circuit that is disposed downstream from the first power supply circuit and that outputs a predetermined voltage; and a third power supply circuit that is disposed downstream from the first power supply circuit and that outputs a predetermined voltage. The electronic control device is characterized by comprising a means that makes it possible to switch the circuit operation state of the third power supply circuit in accordance with the states of the first to third power supply circuits. The electronic control device is also characterized by comprising a means that makes it possible to switch the circuit operation state of the third power supply circuit using only a state detection signal that is generated from the state of the third power supply circuit.

3. 发明公开

EP3051109A4 INTERNAL-COMBUSTION-ENGINE FUEL INJECTION CONTROL DEVICE 有权转让
标题翻译： VORRICHTUNG ZUR STEUERUNG DER KRAFTSTOFFEINSPRITZUNGFÜREINEN VERBRENNUNGSMOTOR
公开(公告)号：EP3051109A4
公开(公告)日：2017-05-03
申请号：EP14848423
申请日：2014-06-13
申请人： HITACHI AUTOMOTIVE SYSTEMS LTD
发明人： FUKUDA TAKAO , SAKAMOTO HIDEYUKI , TOYOHARA MASAHIRO , FUJII YOSHIHISA , MUKAIHARA OSAMU , WATANABE MITSUHIKO , KONNO TAKESHI
IPC分类号： F02D41/20 , F02D41/36 , F02D45/00
CPC分类号： F02D41/20 , F02D2041/2013 , F02D2041/2048 , F02D2041/2051 , F02D2041/2058
摘要： An internal-combustion-engine fuel injection control device which can accurately control a boosted voltage applied to a fuel injection valve during fuel injection and can control a variation in a fuel injection amount without increasing a size or a cost of the fuel injection control device even when a width of a fuel injection driving pulse to drive the fuel injection valve is small is provided. A fuel injection control device 127 includes a boosting operation control unit 15 configured to start a boosting operation at predetermined timing regardless of an amount of a detected voltage when the detected voltage is higher than a threshold voltage for starting boosting and is lower than a threshold voltage for stopping boosting.
摘要翻译：一种内燃机燃料喷射控制装置，其能够在燃料喷射期间精确地控制施加到燃料喷射阀的升压电压，并且能够控制燃料喷射量的变化，而不增加燃料喷射控制装置的尺寸或成本，甚至不增加燃料喷射控制装置的成本当提供用于驱动燃料喷射阀的燃料喷射驱动脉冲的宽度小时。燃料喷射控制装置127具备：升压动作控制部15，其在检测电压比升压开始的阈值电压高的情况下，与检测电压的大小无关地以规定的定时开始升压动作，且低于阈值电压停止助推。

4. 发明公开

EP2323258A4 ELECTROMAGNETIC LOAD CIRCUIT FAILURE DIAGNOSIS DEVICE 有权转让
标题翻译： VORRICHTUNG ZUR DIAGNOSTIZIERUNG VON FEHLERN在EINEM ELEKTROMAGNETISCHEN LASTKREIS
公开(公告)号：EP2323258A4
公开(公告)日：2017-06-21
申请号：EP09809716
申请日：2009-07-17
申请人： HITACHI AUTOMOTIVE SYSTEMS LTD
发明人： OURA RYOICHI , WATANABE MITSUHIKO , MAYUZUMI TAKUYA
IPC分类号： H03K17/08 , F02D41/20 , H03K17/00 , H03K17/18 , H03K17/695
CPC分类号： F02D41/20 , F02D41/22 , F02D2041/2058 , F02D2041/2093 , H03K17/0822 , H03K17/18 , Y02T10/40
摘要： A layer short-circuit of a switch element such as a FET included in an electromagnetic load circuit is detected to accurately perform a failure diagnosis of the electromagnetic load circuit. A failure diagnosis circuit 101 is provided which detects a layer short-circuit in which a high-side switch element, a low-side switch element, or an electromagnetic load itself short-circuits with a power supply voltage terminal or a ground in a state of having a predetermined impedance to perform a failure diagnosis.
摘要翻译：检测包括在电磁负载电路中的诸如FET的开关元件的层短路，以准确地执行电磁负载电路的故障诊断。设置故障诊断电路101，该故障诊断电路101检测其中高压侧开关元件，低压侧开关元件或电磁负载本身与电源电压端或地之间的状态短路的层短路具有预定的阻抗以执行故障诊断。

5. 发明公开

EP2940279A4 CONTROL DEVICE 有权转让
标题翻译： STEUERVORRICHTUNG
公开(公告)号：EP2940279A4
公开(公告)日：2016-10-26
申请号：EP13856368
申请日：2013-10-25
申请人： HITACHI AUTOMOTIVE SYSTEMS LTD
发明人： OYAMA KATSUYA , SATO CHIHIRO , WATANABE MITSUHIKO
IPC分类号： F02D45/00 , F02D41/26 , H04L1/08 , H04L29/08
CPC分类号： F02P9/002 , F02D41/26 , F02D41/266 , F02D2041/286 , F02D2250/12 , H04L1/08 , H04L29/08
摘要： The invention, while reducing noise, suppresses a load increase in a processor and a delay in drive control. An engine control unit includes a processor, a driving circuit including a switching element to drive a load such as a fuel injector and an ignition device, and a communication circuit that transmits control signals from the processor to the driving circuit via serial communication. The control signals each include a command frame for controlling the driving circuit and a data frame for driving the load. If a predetermined bits in each of the data frames received from the processor at predetermined time intervals are determined to be the same twice in succession, the engine control unit changes a state of a driving signal 'Drive' for driving the load and thereby changes an operating state of the switching element.
摘要翻译：本发明在减少噪声的同时，抑制了处理器的负载增加和驱动控制的延迟。发动机控制单元包括处理器，包括用于驱动诸如燃料喷射器和点火装置的负载的开关元件的驱动电路，以及通过串行通信将控制信号从处理器传输到驱动电路的通信电路。控制信号各自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。如果以预定的时间间隔从处理器接收到的每个数据帧中的预定位被确定为相同的两次，则发动机控制单元改变用于驱动负载的驱动信号“驱动”的状态，从而改变开关元件的工作状态。

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