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Patent Agency Ranking
1.发明授权公开(公告)号：US09422884B2
公开(公告)日：2016-08-23
申请号：US14367029
申请日：2012-12-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihisa Fujii , Takao Fukuda , Masahiro Toyohara
CPC classification number: F02D41/20 , F02D35/023 , F02D35/024 , F02D41/008 , F02D41/247 , F02D41/401 , F02D41/402 , F02D2041/2055 , F02D2200/0602 , F02D2200/0618 , Y02T10/44
Abstract: The internal combustion engine control system includes an injector to supply fuel to an internal combustion engine, control section for calculating power distribution time for the injector, a sensor to detect a valve opening of the injector, and control section calculating and storing valve opening delay time, which is a difference between a power distribution start time and a valve opening detection time.When a power distribution time determination section determines that the power distribution time for the injector is not less than a predetermined value, the valve opening delay time is calculated and stored. When the power distribution time for the injector is less than the predetermined value, the power distribution time for the injector is controlled based on the valve opening delay time stored in storing means to perform control to increase the injector power distribution time.
Abstract translation: 内燃机控制系统包括：向内燃机供给燃料的喷射器，用于计算喷射器的配电时间的控制部，检测喷射器的开度的传感器，以及控制部，计算并存储阀开启延迟时间 ，其是配电开始时间和开阀检测时间之间的差。 当电力分配时间确定部分确定喷射器的动力分配时间不小于预定值时，计算并存储开阀延迟时间。 当喷射器的动力分配时间小于预定值时，基于存储在存储装置中的开阀延迟时间来控制喷射器的动力分配时间，以进行控制以增加喷射器动力分配时间。
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公开(公告)号：US11542885B2
公开(公告)日：2023-01-03
申请号：US17052888
申请日：2019-06-11
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yasuo Shima , Yoshihisa Fujii , Takeo Yamashita
Abstract: With a simple configuration, responsiveness between an electronic control unit and a load drive circuit is monitored without deteriorating characteristics of the load drive circuit. The load drive circuit according to the present invention diagnoses an abnormality in responsiveness of a switch element that drives a load based on a drive command of the switch element and a signal at an output terminal of the switch element.
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公开(公告)号：US10393051B2
公开(公告)日：2019-08-27
申请号：US15023560
申请日：2014-06-13
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takao Fukuda , Hideyuki Sakamoto , Masahiro Toyohara , Yoshihisa Fujii , Osamu Mukaihara , Mitsuhiko Watanabe , Takeshi Konno
IPC: F02D41/20
Abstract: 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 includes a boosting operation control unit 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.
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公开(公告)号：US10910815B2
公开(公告)日：2021-02-02
申请号：US16604909
申请日：2018-03-26
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Takayasu Matsushita , Yoshihisa Fujii
Abstract: An electronic control unit having a self-diagnosis function is realized in which an operation processing section is capable of identifying not only the presence or absence of the occurrence of NG of disconnection, an earth fault, and a power fault, but also three states of NG, OK, and indetermination. Therefore, when a diagnosis opportunity is present, a mask signal maintains a state of Not Mask even if the mask signal is subsequently brought into a mask state. When an operation processing device requests a drive circuit for communication therewith, the mask signal is set to the state of Mask, and information stored in a register is cleared. Further, when the mask signal is in the state of Mask when the operation processing device performs communication with the drive circuit, the operation processing device is capable of identifying that an indeterminate state free of the opportunity of the diagnosis is present.
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公开(公告)号：US20140366848A1
公开(公告)日：2014-12-18
申请号：US14367029
申请日：2012-12-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoshihisa Fujii , Takao Fududa , Masahiro Toyohara
CPC classification number: F02D41/20 , F02D35/023 , F02D35/024 , F02D41/008 , F02D41/247 , F02D41/401 , F02D41/402 , F02D2041/2055 , F02D2200/0602 , F02D2200/0618 , Y02T10/44
Abstract: The internal combustion engine control system includes an injector 3 (116) to supply fuel to an internal combustion engine 11, means 110 for calculating power distribution time for the injector, a sensor 105 to detect a valve opening of the injector, and means 112 for calculating and storing valve opening delay time, which is a difference between a power distribution start time and a valve opening detection time. When a power distribution time determination section 114 determines that the power distribution time for the injector is not less than a predetermined value, the valve opening delay time is calculated and stored. When the power distribution time for the injector is less than the predetermined value, the power distribution time for the injector is controlled based on the valve opening delay time stored in storing means to perform control to increase the injector power distribution time.
Abstract translation: 内燃机控制系统包括用于向内燃机11供应燃料的喷射器3（116），用于计算喷射器的配电时间的装置110，用于检测喷射器的阀开口的传感器105，以及用于 计算和存储阀打开延迟时间，其是配电开始时间和开阀检测时间之间的差。 当配电时间确定部114确定喷射器的配电时间不小于预定值时，计算并存储开阀延迟时间。 当喷射器的动力分配时间小于预定值时，基于存储在存储装置中的开阀延迟时间来控制喷射器的动力分配时间，以进行控制以增加喷射器动力分配时间。
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