Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BATTERY CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/181259
Kind Code:
A1
Abstract:
It is desired to more adequately reflect a use state of a secondary battery to determine power to be restricted. A charge/discharge frequency calculation unit 153 measures, on the basis of current flowing through an assembled battery 110, an energization time during which the current has flowed continuously and outputs an energization-time frequency table for storing the frequency (the number of times) of each energization time. The output energization-time frequency table is written into a storage unit 180 and read during the next vehicle startup time, and the energization time having the highest frequency is output from the energization-time frequency table as a load feature amount. A power restriction rate calculation unit 154 calculates a power restriction rate on the basis of the load feature amount, a voltage, a temperature, and an SOC and outputs the power restriction rate to a power restriction rate reflection unit 155. The power restriction rate reflection unit 155 calculates a power restriction value on the basis of power that can be input/output and the power restriction rate.

More Like This:
Inventors:
NAKAO RYOHHEI (JP)
MATTHEY FANNY (JP)
OHKAWA KEIICHIRO (JP)
WADA YOSUKE (JP)
Application Number:
PCT/JP2019/004339
Publication Date:
September 26, 2019
Filing Date:
February 07, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H02J7/04; H02J7/10
Domestic Patent References:
WO2015019875A12015-02-12
Foreign References:
JP2018034734A2018-03-08
JP2017070158A2017-04-06
JP2006074852A2006-03-16
JP2017054684A2017-03-16
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
Download PDF: