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公开(公告)号：US11618462B2
公开(公告)日：2023-04-04
申请号：US17414814
申请日：2019-10-11
申请人： Hitachi Astemo, Ltd.
IPC分类号： B60W50/00 , B60W50/02 , B60W50/029 , G07C5/08
摘要： Provided is an in-vehicle control system capable of reducing an increase in cost accompanying advancement of a fallback operation. Therefore, the in-vehicle control system includes: a plurality of control circuits 3 and 4 respectively including control units that perform data communication with each other; an external environment recognition sensor a5; and a plurality of wirings 11, 12, 13, and 14 connecting the external environment recognition sensor a5 and the plurality of control circuits 3 and 4. The plurality of control circuits 3 and 4 include: a first power supply unit that supplies power to the external environment recognition sensor a5 via a corresponding wiring among the plurality of wirings 11, 12, 13, and 14; and a first detection unit that detects an abnormality related to the power supplied to the external environment recognition sensor a5. A control unit in a control device including a first detection unit that has detected the abnormality is controlled to acquire data of the external environment recognition sensor a5 from a control unit included in the other control device.
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公开(公告)号：US11962238B2
公开(公告)日：2024-04-16
申请号：US17636633
申请日：2020-08-14
申请人： Hitachi Astemo, Ltd.
CPC分类号： H02M3/157 , B60L50/60 , H02M1/0003 , H02M1/0016 , H02M1/0025 , H02M1/0038 , H02M1/007 , H02M1/08 , H02M1/32 , B60L2240/527
摘要： Provided is a highly reliable electronic control unit capable of improving responsiveness of an output current of a switching power supply to load current variation and suppressing power supply voltage variation accompanying the load current variation at low cost and with high power efficiency. Provided are: a calculation unit that performs signal processing; a first power supply circuit that supplies a first power supply voltage to the calculation unit; and a second power supply circuit that supplies a second power supply voltage to the first power supply circuit. The calculation unit has a function of outputting a control signal when a change in a consumed current of the calculation unit exceeds a predetermined threshold, and changes any one or both of a control scheme of the first power supply circuit and the second power supply voltage according to the control signal.
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