公开(公告)号：US20180075674A1

公开(公告)日：2018-03-15

申请号：US15558804

申请日：2016-02-19

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Yoshiyuki UTAGAWA ,  Ryoji WATANABE

IPC: G07C5/08 ,  G05D1/00 ,  H04L12/24 ,  H04L29/08

CPC classification number: G07C5/0825 ,  B60R16/023 ,  B60T7/107 ,  B60T8/00 ,  B60T8/885 ,  B60T13/74 ,  B60T2270/413 ,  G05D1/0055 ,  H04L41/06 ,  H04L67/14

Abstract: The present invention relates to a vehicular control device including a plurality of ECUs connected to each other through an in-vehicle network. The vehicular control device includes a first control device that controls an electrical component and a second control device connected to the first control device through an in-vehicle network. In a case where an operation switch of the electrical component in the first control device is fixed in an on-state and an ignition key is off, data transmission from the first control device to the second control device is stopped, or the first control device is set to a reception-only mode, and thus the second control device is prevented from operating due to a wake-up function.

公开(公告)号：US20180057008A1

公开(公告)日：2018-03-01

申请号：US15557279

申请日：2016-02-19

Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.

Inventor： Yoshiyuki UTAGAWA

IPC: B60W30/18 ,  H04L12/40 ,  B60R16/023 ,  B60T7/12 ,  G07C5/08

CPC classification number: B60W30/18109 ,  B60R16/0231 ,  B60T7/12 ,  B60T8/00 ,  B60T13/741 ,  F16D55/226 ,  F16D65/183 ,  F16D2121/24 ,  G07C5/0808 ,  H04L12/40

Abstract: A vehicular control device includes a control unit that controls an electrical component, a wake-up circuit that wakes up the control unit on the basis of a wake-up signal from a switch for operating the electrical component, and a wake-up stop circuit that interrupts the wake-up signal supplied from the switch to the wake-up circuit after a predetermined length of time has elapsed from a wake-up instruction. The vehicular control device is put to sleep by forcibly interrupting the wake-up signal in the wake-up stop circuit, regardless of the state of the switch after the predetermined length of time has elapsed from the wake-up instruction, and thus it is possible to prevent a wake-up state from being maintained even in a case where the switch is fixed in an on-state.