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1. (WO2018131380) VEHICLE CONTROL DEVICE

Pub. No.:    WO/2018/131380    International Application No.:    PCT/JP2017/045033
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Sat Dec 16 00:59:59 CET 2017
IPC: H02J 1/00
B60L 3/00
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: AMO Hirotaka
天羽 博考
Title: VEHICLE CONTROL DEVICE
Abstract:
Provided is a vehicle control device capable of properly detecting an abnormality of a power supply voltage while suppressing excessive abnormality detection of the power supply voltage. The vehicle control device is provided with: a voltage monitor 2 for detecting a power supply voltage VCC applied from a power supply unit 1 to a control unit 4; a ROM 31 for storing a first threshold value set to an upper limit-side operation guarantee voltage VH2 and a second threshold value set to a limit-side rated voltage VH1 having a larger value than the first threshold value; and a power supply monitoring unit 3 which stores a physical quantity pertaining to the power supply voltage VCC into a RAM 32 when the power supply voltage VCC detected by the voltage monitor 2 is larger than or equal to the first threshold value but is smaller than the second threshold value, and outputs a conditional control signal to the control unit 4 when a determination is made on the basis of the stored physical quantity that control should be partly limited, or outputs a control stop signal to the control unit 4 when the power supply voltage VCC detected by the voltage monitor 2 is larger than or equal to the second threshold value.