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公开(公告)号:US20160138511A1
公开(公告)日:2016-05-19
申请号:US14902939
申请日:2014-05-16
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Masahiro TOYOHARA , Osamu MUKAIHARA , Hideyuki SAKAMOTO , Takao FUKUDA , Masayoshi KAWATSU
CPC classification number: F02D41/3005 , F02D41/008 , F02D41/0085 , F02D41/20 , F02D41/2467 , F02D41/3809 , F02D2041/2055 , F02M63/0015
Abstract: Provided is a control device for an internal combustion engine which can suppress a relative variation in the fuel injection amount for each cylinder. A drive pulse width to drive the fuel injection valve for injecting the fuel is calculated according to a driving state of the internal combustion engine, any one or both of a valve-opening response delay time and a valve-closing response delay time with respect to a drive pulse signal of the fuel injection valve for each fuel injection value are calculated, and the drive pulse width is corrected to make an injection amount of each fuel injection valve matched to a predetermined injection amount based on any one or both of the valve-opening response delay time and the valve-closing response delay time calculated for each fuel injection valve.
Abstract translation: 提供一种能够抑制每个气缸的燃料喷射量的相对变化的内燃机的控制装置。 根据内燃机的驱动状态计算用于驱动用于喷射燃料的燃料喷射阀的驱动脉冲宽度,相对于内燃机的开阀响应延迟时间和闭阀响应延迟时间中的任一个或两个 计算用于每个燃料喷射值的燃料喷射阀的驱动脉冲信号,并且校正驱动脉冲宽度,以使得每个燃料喷射阀的喷射量与预定喷射量相匹配, 打开响应延迟时间和为每个燃料喷射阀计算的关闭响应延迟时间。
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公开(公告)号:US20210053580A1
公开(公告)日:2021-02-25
申请号:US16963314
申请日:2018-12-14
Applicant: Hitachi Automotive Systems, Ltd.
Inventor: Tatsuya HORIGUCHI , Hideyuki SAKAMOTO , Teppei HIROTSU
Abstract: To provide an electronic control device generating low heat due to a simplified configuration and a reduced verification arithmetic load without multiplexing of sensors and calculations.
A sensor fusion processing unit 4 that integrates a plurality of pieces of sensor information having been input from a plurality of first sensors 11 and second sensors 12, a behavior prediction processing unit 5 that obtains a surrounding object prediction map 8 in which a future behavior of a target object is predicted based on an own vehicle surrounding map 9 integrated by the sensor fusion processing unit 4, and a first comparison unit 102 that compares the surrounding object prediction map 8 predicted by the behavior prediction processing unit 5 with output information of each of the first sensors 11 and the second sensors 12 of the sensor fusion processing unit 4 at a predicted time are included.-
公开(公告)号:US20200177185A1
公开(公告)日:2020-06-04
申请号:US16641140
申请日:2018-06-27
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Taisuke UETA , Kenichi SHIMBO , Tadanobu TOBA , Hideyuki SAKAMOTO
IPC: H03K19/177 , G05D1/00 , G06F1/24 , G06F1/02
Abstract: An electronic control device includes: a logic circuit for reconfiguring a plurality of arithmetic circuits including a first circuit and a second circuit; a reconfiguration controller that reconfigures the arithmetic circuits and checks the reconfigured arithmetic circuits based on reconfiguration commands; and a process controller that transmits the reconfiguration commands to the reconfiguration controller and instructs the arithmetic unit to execute operations, in which when a first reconfiguration command is received, the reconfiguration controller reconfigures and checks the first circuit, when the check of the first circuit by the reconfiguration controller is completed, the process controller instructs the first circuit to execute an operation, the process controller transmits a second reconfiguration command to the reconfiguration controller and instructs the reconfiguration controller to start to reconfigure the second circuit until the execution of a predetermined process of the first circuit is completed after completion of the reconfiguration of the first circuit.
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公开(公告)号:US20200070847A1
公开(公告)日:2020-03-05
申请号:US16607631
申请日:2018-03-08
Applicant: Hitachi Automotive Systems, Ltd.
Inventor: Tatsuya HORIGUCHI , Hideyuki SAKAMOTO , Teppei HIROTSU
Abstract: An electronic control device for a vehicle according to the present invention includes an action prediction unit that predicts the action of an object around the vehicle on the basis of external information acquired from external information detection units that detect external information of the vehicle, and a determination unit for a detection unit that determines whether an abnormality has occurred in the external information detection unit by comparing external information acquired from the external information detection unit at the time corresponding to a prediction result of the action prediction unit to the prediction result of the action prediction unit.
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公开(公告)号:US20200060050A1
公开(公告)日:2020-02-20
申请号:US16493163
申请日:2018-01-31
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Yoko OHKUBO , Hideyuki SAKAMOTO , Yusaku KATSUBE
Abstract: To obtain, in an on-board control device, a shield effect against noise radiated from an electronic component.The present invention includes: an electronic component 103; a metal housing 101 which covers at least a part of the electronic component 103; a metal portion 105 which is provided so that the electronic component 103 is disposed between the metal portion 105 and the metal housing 101; and a shield structure which shields radiation noise from the electronic component 103 by electrostatic capacitive coupling formed between the metal portion 105 and the metal housing 101.
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公开(公告)号:US20200055467A1
公开(公告)日:2020-02-20
申请号:US16610542
申请日:2018-04-19
Applicant: Hitachi Automotive Systems, Ltd.
Inventor: Hiroshi SHINODA , Tomohiko YANO , Hideyuki SAKAMOTO
Abstract: A transient increase or decrease of power supplied to a reconfiguration circuit to be a logic circuit whose circuit configuration can be changed is reduced. An autonomous traveling control ECU 201 has a reconfiguration circuit 209, a main power supply circuit 211, an auxiliary current source circuit 213, and a function control unit 207. The reconfiguration circuit 209 is a reconfigurable logic circuit. The main power supply circuit 211 supplies a power supply voltage to the reconfiguration circuit 209. The auxiliary current source circuit 213 increases or decreases a current supplied from the main power supply circuit 211 to the reconfiguration circuit 209. The function control unit 207 determines an operation mode of the reconfiguration circuit 209 on the basis of a mode determination signal input from the outside and indicating a traveling mode of a vehicle, and controls a reconfiguration of the reconfiguration circuit 209 on the basis of a determination result. The auxiliary current source circuit 213 increases or decreases the current supplied to the reconfiguration circuit 209 in accordance with a load variation of the reconfiguration circuit 209, on the basis of an auxiliary current control signal for giving an instruction on an increase or decrease of the current supplied to the reconfiguration circuit 209.
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公开(公告)号:US20190308637A1
公开(公告)日:2019-10-10
申请号:US16463284
申请日:2017-09-12
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Hiroshi SHINODA , Ming LIU , Taisuke UETA , Hideyuki SAKAMOTO
Abstract: A transient increase/decrease of power supplied to a reconfiguration circuit to be a logic circuit whose circuit configuration can be changed is reduced. An autonomous traveling control ECU has a reconfiguration circuit, a function control unit, a power supply circuit, and a power supply control unit. The reconfiguration circuit is a reconfigurable logic circuit. The function control unit determines an operation mode of the reconfiguration circuit on the basis of a mode determination signal and controls a reconfiguration of the reconfiguration circuit on the basis of a determination result. The power supply circuit supplies power to the reconfiguration circuit. The power supply control unit controls the power supply circuit. The power supply control unit 206 controls a load current generated by the power supply circuit before a load variation of the reconfiguration circuit, on the basis of power supply control information to be information for controlling the power supply circuit.
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公开(公告)号:US20170131698A1
公开(公告)日:2017-05-11
申请号:US15320003
申请日:2015-05-11
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Tatsuya HATAKEYAMA , Hiroaki IGARASHI , Hideyuki SAKAMOTO
IPC: G05B19/042
CPC classification number: G05B19/0428 , B60L1/00 , B60L3/0084 , B60L3/0092 , B60L2220/42 , G05B2219/14006 , G06F11/30 , H02P29/032 , Y02T10/646 , Y02T90/16
Abstract: A motor control device avoids the difficulties associated with safely controlling a motor using a second calculation unit when a first calculation unit malfunctions. A motor control device monitors a malfunction of a first microcomputer and a malfunction of a first CPU of the first microcomputer and performs a determination based on a result of a second external communication functional unit. When the determination is normal, the process proceeds determine that the first CPU is normal and a second CPU malfunctions. Therefore, it is possible to continue processing using the first CPU in this case.
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公开(公告)号:US20170089969A1
公开(公告)日:2017-03-30
申请号:US15312085
申请日:2015-06-17
Applicant: Hitachi Automotive Systems, Ltd.
Inventor: Hiroaki IGARASHI , Masayoshi KASHIHARA , Tatsuya HATAKEYAMA , Koichi YAHATA , Hideyuki SAKAMOTO
CPC classification number: G01R31/02 , G01R15/04 , G01R19/0084 , G01R19/165 , G01R31/40
Abstract: An object of the present invention is to diagnose a state of a voltage divider while performing a normal measurement to improve reliability. A voltage detection apparatus according to the present invention includes: a first resistor for dividing voltage of a detection unit into a first divided voltage value; and a test pattern insertion circuit unit including a second resistor for dividing the first divided voltage value into a second divided voltage value and a switching device, wherein the test pattern insertion circuit unit is connected to an equipotential connection point to the first divided voltage value, and wherein a state of the first resistor is detected based on the second divided voltage value when the switching device is conductive.
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公开(公告)号:US20150377176A1
公开(公告)日:2015-12-31
申请号:US14766253
申请日:2014-01-24
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor: Ayumu HATANAKA , Ryo KUSAKABE , Motoyuki ABE , Toshihiro AONO , Teppei HIROTSU , Hideyuki SAKAMOTO , Takao FUKUDA , Hideharu EHARA , Masahiro TOYOHARA , Akira NISHIOKA , Toshio HORI , Kiyoshi AIKI
CPC classification number: F02D41/401 , F02D41/20 , F02D41/3011 , F02D2041/2006 , F02D2041/2055 , F02D2041/2058 , F02M51/061 , F02M63/0017
Abstract: An object of this disclosure is to provide a fuel injection device that can reliably detect an operation timing of a valve body, that is, a valve opening timing with high accuracy. The current of an electromagnetic valve reaches I2 at time t3, an FET 201 and an FET 221 are turned on, and a battery voltage VB is applied to the electromagnetic valve until time t5 is reached. The amount of displacement of the valve body reaches a target amount of control lift at time t4 between time t3 and time t5, that is, a movable core 304 comes into contact with a fixed core 301. The detection of the valve opening timing is performed during the period from time t3 to time t5.
Abstract translation: 本公开的目的在于提供一种能够可靠地检测阀体的动作正时,即高精度的开阀定时的燃料喷射装置。 在时间t3,电磁阀的电流达到I2,FET201和FET221导通,并且电池电压VB被施加到电磁阀直到时刻t5。 在时刻t3〜时刻t5之间的时刻t4,即可动铁心304与固定铁心301接触,阀体的位移量达到目标控制升程量。进行开阀定时的检测 在时间t3到时间t5。
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