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

IPC: B60W20/11 ,  B60W50/00 ,  B60W40/12 ,  B60L58/12 ,  B60W10/06 ,  B60W10/08 ,  B60W20/14

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.

公开(公告)号：US20230193845A1

公开(公告)日：2023-06-22

申请号：US17925636

申请日：2021-02-05

Applicant: Hitachi Astemo, Ltd.

Inventor： Ryutaro KOIWAI ,  Yoichi IIHOSHI ,  Kohei SUZUKI

IPC: F02D41/26 ,  F02D41/00

CPC classification number: F02D41/26 ,  F02D41/0002 ,  F02D2200/0406 ,  F02D2200/0404 ,  F02D2200/0414

Abstract: An internal combustion engine control device 110 includes a mass flux calculation unit F2, an opening area calculation unit F3, an effective opening area calculation unit F4, and a passing gas flow rate calculation unit F5. The mass flux calculation unit F2 calculates a mass flux MF of gas passing through a throttle valve 125 based on an upstream gas temperature Tu, an upstream gas pressure Pu, and a downstream gas pressure Pd of the throttle valve 125. The opening area calculation unit F3 calculates an opening area A of the throttle valve 125 based on an opening degree θ of the throttle valve 125. The effective opening area calculation unit F4 calculates an effective opening area EA of the throttle valve 125 based on the upstream gas pressure Pu, the downstream gas pressure Pd, the opening degree θ, and the opening area A. The passing gas flow rate calculation unit F5 calculates a gas flow rate GF passing through the throttle valve 125 based on the mass flux MF and the effective opening area EA.

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

IPC: B60W30/16 ,  B60W50/00 ,  B60W40/04 ,  B60W30/18 ,  B60W50/14

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.