Title:
ON-VEHICLE ELECTRIC POWER CONTROL SYSTEM, CONTROL DEVICE, AND AGGREGATED CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/079884
Kind Code:
A1
Abstract:
The present invention reduces the influence of a drop in an electric power supply voltage that is caused by a smaller electric wire diameter of a wire harness, and ensures a guaranteed-operation voltage for components 501–503 that are connected to the wire harness. An on-vehicle electric power control system 1 comprises a low-voltage battery 50, a first control device 100, and components 501–503. The first control device 100 acquires wiring resistance values of a third electric power supply wire 60, a fourth electric power supply wire 80, and a fifth electric power supply wire 90, acquires an electric current value that is supplied to the components 501–503, and calculates a voltage drop amount in the electric power supply wires on the basis of the acquired wiring resistance values and electric current value. On the basis of the calculated voltage drop amount, the first control device 100 then determines a correction value for correcting an output voltage of a DC-DC converter 30, and transmits a correction request that indicates the determined correction value to a second control device 200.
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Inventors:
JYUMONJI KENTAROU (JP)
Application Number:
PCT/JP2022/038374
Publication Date:
April 18, 2024
Filing Date:
October 14, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02J7/00
Foreign References:
| JP2012039778A | 2012-02-23 | |||
| JP2006089014A | 2006-04-06 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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