Title:
VEHICLE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/131380
Kind Code:
A1
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.
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Inventors:
AMO HIROTAKA (JP)
Application Number:
PCT/JP2017/045033
Publication Date:
July 19, 2018
Filing Date:
December 15, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02J1/00; B60L3/00
Foreign References:
| JPH0744407A | 1995-02-14 | |||
| JP2011063231A | 2011-03-31 | |||
| JP2007162586A | 2007-06-28 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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