Title:
POWER STORAGE SYSTEM
Document Type and Number:
Japanese Patent JP2016157647
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress the decrease in charging amount of an auxiliary device battery, accompanying an offset learning process of a current sensor during the rise in temperature.SOLUTION: A power storage system according to the present invention comprises: a heater operable to raise the temperature of a power storage device; a first DC/DC converter operable to output a power from the power storage device or from an external power source for charging the power storage device to an auxiliary device battery and the heater; a second DC/DC converter of which the output side is connected in parallel with the auxiliary device battery and the heater, and the input side is connected to the external power source or a solar panel provided on a vehicle; a current sensor operable to detect a charge/discharge current of the power storage device; and a controller operable to stop the first DC/DC converter from working and perform an offset learning process of the current sensor. When performing the offset learning process during power supply to the heater through the first DC/DC converter, the controller controls so as to operate the second DC/DC converter to supply a power output from the external power source or solar panel to the auxiliary device battery and the heater.SELECTED DRAWING: Figure 2
Inventors:
FURUHASHI YUSUKE
Application Number:
JP2015035843A
Publication Date:
September 01, 2016
Filing Date:
February 25, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/6571; B60L3/00; B60L11/18; H01M10/48; H01M10/615; H01M10/625; H01M10/633; H02J7/00; H02J7/35
Attorney, Agent or Firm:
Mizuno Katsufumi
Makoto Ide
Hiroshi Suzawa
Makoto Ide
Hiroshi Suzawa