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公开(公告)号：US20210163027A1
公开(公告)日：2021-06-03
申请号：US17044937
申请日：2019-04-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Taisuke UETA , Satoshi TSUTSUMI , Yuta MUTO , Hideyuki SAKAMOTO
IPC: B60W50/035 , G07C5/08 , B60W50/02
Abstract: An electronic control device is mounted on a vehicle equipped with a plurality of hardware capable of operation, and comprises an information collection unit which collects external information of the vehicle, a storage unit which stores a plurality of processing specifications which prescribe processing to be executed by each of the plurality of hardware and the external information to be used by the plurality of hardware for performing operation, and an applied condition, which is a condition related to the external information and a status of the plurality of hardware for applying each of the plurality of processing specifications, and a processing control unit which determines one processing specification among the plurality of processing specifications from a correspondence to the condition based on the collected external information and the status of the plurality of hardware, and controls the plurality of hardware based on the determined processing specification.
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公开(公告)号：US20190300009A1
公开(公告)日：2019-10-03
申请号：US16468619
申请日：2017-10-31
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Hideyuki SAKAMOTO , Teppei HIROTSU , Satoshi TSUTSUMI , Taisuke UETA
Abstract: A vehicle control device capable of improving safety, even when abnormality in the operation of an arithmetic processing unit occurs. A second microcomputer receives trajectory information transmitted from a first microcomputer via a communication line and calculates control commands to actuators to synchronize the arithmetic processing unit allowing the first and second microcomputers to be synchronized. The second microcomputer performs a calculation and compares the result with the calculation result of the first microcomputer so that the second microcomputer can accurately determine whether or not the first microcomputer is abnormal. When the abnormality occurs in the first microcomputer based on the determination, the actuators are controlled by switching to the control commands calculated by the second microcomputer which is synchronized with the arithmetic processing unit. Thus, the device performs seamless self-driving control without the occurrence of abrupt control gaps.
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Patent Agency Ranking
公开(公告)号：US20210170962A1
公开(公告)日：2021-06-10
申请号：US16771032
申请日：2018-12-05
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Riu HIRAI , Goichi ONO , Taisuke UETA
Abstract: A computing system includes a server, and an on-vehicle device mounted on a vehicle. The server includes: a server storage part containing a learned model; a simplification part which generates a contraction information for determination of calculation precision by using the learned model and an object of inference; and a server communication part for transmitting the contraction information to the on-vehicle device. The on-vehicle device includes: a signal input part to which an output signal from a sensor mounted on the vehicle is inputted; an on-vehicle communication part for receiving the contraction information; an inference part for making an inference on the output signal and a reconfigurable logic circuit; and a reconfiguration part for configuring the inference part in the logic circuit based on the contraction information.
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公开(公告)号：US20200379831A1
公开(公告)日：2020-12-03
申请号：US16970855
申请日：2018-11-20
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Kenichi SHIMBO , Tadanobu TOBA , Taisuke UETA , Hideyuki SAKAMOTO
IPC: G06F11/07 , G06F11/10 , G06F11/14 , H03K19/1776
Abstract: An electronic control device includes a rewritable configuration memory composed of a plurality of frames in which logic circuit information is stored, a reconfiguration control unit configured to rewrite the logic circuit information of the frames, a logic unit configured to form a logic circuit based on the logic circuit information stored in the frames, and a configuration memory diagnosis unit configured to read the logical circuit information stored in the frames of the configuration memory and to perform error detection which is detection of an error in the stored logic circuit information, in which when the frames are rewritten by the reconfiguration control unit, the configuration memory diagnosis unit performs the error detection of ones of the frames that are rewritten prior to ones of the frames that are not rewritten.
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公开(公告)号：US20200050580A1
公开(公告)日：2020-02-13
申请号：US16606830
申请日：2018-03-22
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Taisuke UETA , Satoshi TSUTSUMI , Hideki ENDO , Hideyuki SAKAMOTO
Abstract: An electronic control device includes: a partially reconfigurable logic circuit in which a calculation unit which is reconfigured and executes calculation and a storage unit which stores calculation target date to be calculated by the calculation unit is configured; and a processing control unit which transmits circuit data for reconfiguring the calculation unit and the calculation target date to the logic circuit. When the processing control unit obtains next calculation target date which is the calculation target date relating to a next calculation unit which is the calculation unit after completion of reconfiguration, transmission of the next calculation target date to the storage unit is started regardless of whether the reconfiguration of the next calculation unit is completed, and upon completion of the reconfiguration, the next calculation unit performs calculation using the next calculation target date.
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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：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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