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公开(公告)号：US20230365142A1
公开(公告)日：2023-11-16
申请号：US18246543
申请日：2021-09-30
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuuki OKUDA , Takashi OKADA
IPC: B60W50/02 , B60W50/00 , B60W60/00 , G07C5/00 , G06F16/2458
CPC classification number: B60W50/0205 , B60W50/0097 , B60W60/001 , G07C5/008 , G06F16/2462 , G06F16/2477 , B60W2520/00 , B60W2540/043 , B60W2556/65
Abstract: An object of the present invention is to provide a vehicle control device that controls an engine so as to improve fuel consumption in consideration of driving characteristics of a driver and an automatic driving system, the vehicle control device being capable of appropriately reflecting the driving characteristics of the driver and the automatic driving system caused by a difference in traffic environment in control, and a data adjustment method of a database. A time-series database 3 that holds a vehicle state including at least acceleration of a host vehicle in time series, a statistical database 4 that divides the vehicle state into a plurality of classes and holds the number of appearances of the vehicle state belonging to any of the divided classes, and a vehicle state prediction unit 2 that predicts a future vehicle state based on information regarding a vehicle state held in the time-series database 3 and the statistical database 4 and a vehicle state newly acquired during traveling of the host vehicle are provided.
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公开(公告)号：US20230143238A1
公开(公告)日：2023-05-11
申请号：US17907822
申请日：2021-01-15
Applicant: Hitachi Astemo, Ltd.
Inventor： Yoichi IIHOSHI , Takashi OKADA , Yuuki OKUDA
CPC classification number: B60W20/11 , B60W50/0097 , B60W40/12 , B60L58/12 , B60W10/06 , B60W10/08 , B60W20/14 , B60W2520/00 , B60W2530/00 , B60W2510/244
Abstract: The present invention provides a vehicle control device capable of improving fuel consumption while reducing deterioration of emission by appropriately controlling a powertrain system of a vehicle. A vehicle control device includes: a prediction unit configured to predict speeds or accelerations of a vehicle based on a plurality of prediction models; a fuel consumption information calculation unit configured to calculate fuel consumption for each of a plurality of prediction results obtained by the prediction unit; a selection unit configured to select any one of the plurality of prediction results; and a powertrain control unit configured to control at least one of an engine, a generator, an inverter, a drive motor, and a transmission of the vehicle based on the prediction result selected by the selection unit.
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公开(公告)号：US20210380108A1
公开(公告)日：2021-12-09
申请号：US17283390
申请日：2019-10-08
Applicant: Hitachi Astemo, Ltd.
Inventor： Yoichi IIHOSHI , Takashi OKADA , Yuuki OKUDA
Abstract: A driving assistance device controls the speed of an own vehicle based on a predicted traveling state of a preceding vehicle, and includes a traveling scene recognition unit that detects the distance until the preceding vehicle reaches an intersection, a determination unit that determines a traveling scene of the preceding vehicle at the intersection, and a calculation unit that selects the preceding vehicle prediction model according to the traveling scene determined by the determination unit from among a plurality of preceding vehicle prediction models recorded for each traveling scene in which the preceding vehicle travels, and inputs a distance until the preceding vehicle detected by the traveling scene recognition unit in the selected preceding vehicle prediction model reaches the intersection so as to calculate a predicted traveling state of the preceding vehicle after a predetermined time.
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公开(公告)号：US20230339487A1
公开(公告)日：2023-10-26
申请号：US17778071
申请日：2020-09-08
Applicant: Hitachi Astemo, Ltd.
Inventor： Yuuki OKUDA , Takashi OKADA
CPC classification number: B60W50/085 , B60W40/08 , B60W30/16 , B60W10/08 , B60W10/06 , B60W10/02 , B60W2540/043 , B60W2556/45
Abstract: An object of the present invention is to provide a vehicle control device that controls an engine so as to improve fuel efficiency, with driving characteristics of a driver or an automatic driving system in consideration. A vehicle control device includes: a driving characteristic computation unit that computes driving characteristic parameters of an own vehicle on the basis of an intervehicle distance between a preceding vehicle and the own vehicle; a preceding vehicle state prediction unit that predicts a state of the preceding vehicle after a predetermined amount of time on the basis of the intervehicle distance; and a driving state estimation unit that estimates a driving state of the own vehicle after the predetermined amount of time on the basis of the state of the preceding vehicle after the predetermined amount of time predicted by the preceding vehicle state prediction unit and the driving characteristic parameters of the own vehicle computed by the driving characteristic computation unit.
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