Title:
DISCHARGE CONTROL DEVICE AND DISCHARGE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/039276
Kind Code:
A1
Abstract:
This discharge control device 23 comprises: a discharge control circuit 231 which outputs a discharge signal Spwm for discharging a smoothing capacitor 14 connected to a high-voltage battery 11; and a discharge stop circuit 232. A low-voltage battery 18 is connected to the high-voltage battery 11 in parallel with the smoothing capacitor 14 via a DC/DC converter 17 that performs voltage conversion. The discharge stop circuit 232 stops the output of the discharge signal Spwm by the discharge control circuit 231, when the voltage Vlv of the low-voltage battery 18 becomes equal to or lower than a predetermined first voltage value.
Inventors:
HIRANUMA SATOSHI (JP)
YAHATA KOUICHI (JP)
YAHATA KOUICHI (JP)
Application Number:
PCT/JP2020/029395
Publication Date:
March 04, 2021
Filing Date:
July 31, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02M7/48
Foreign References:
| JPH10164709A | 1998-06-19 | |||
| JP2009254169A | 2009-10-29 | |||
| JP2016086578A | 2016-05-19 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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