US 9,520,736 B2Granted

Charging control apparatus and charging control method for secondary battery

AssigneeMitsubishi Electric Corporation

InventorsKenro Mitsuda, Daigo Takemura, Masaki Yamada

Life of this patent

Estimating the term…

Abstract

A charging control apparatus for a secondary battery, including a current control apparatus for, upon charging for a secondary battery from an electric generator regenerating kinetic energy as regenerative energy, performing control so as to suppress charging current for the secondary battery at a start of charging to a predetermined suppression rate with respect to charging current at the start of charging in the case that the charging current is not suppressed, and decrease the suppression rate as time elapses.

Claims9

Dependent claims

A charging control apparatus, comprising:

at least one of a load impedance device connected in parallel to a secondary battery and a load impedance device connected in series to the secondary battery;
the load impedance device being connected to an electric generator regenerating kinetic energy as regenerative energy to provide a charging current to charge the secondary battery;
a current control apparatus configured to perform control of load impedance of the load impedance device so as to suppress the charging current for the secondary battery at the start of the charging of the secondary battery with respect to the charging current at the start of charging when the charging current is not suppressed, and to increase the charging current as time elapses.

Dependencies are inferred from the claim text.

Facts

Application: 14/123,900Filed 23 Jul 2012
Priority: JP 2011-16379827 Jul 2011
Published: US 2014/0111145 A124 Apr 2014
Granted: 13 Dec 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

H02J 7/345
Parallel operation in networks using both storage and other DC sources, e.g. providing buffering: using capacitors as storage or buffering devices
B60L 50/16
Using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines: with provision for separate direct…
B60L 53/20
Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of…:…
B60W 10/26
Including control of energy storage means: for electrical energy, e.g. batteries or capacitors

Family

US 2014/0111145 A1Pre-grant publication · published 24 Apr 2014
US 9,520,736 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

Facts

Application

14/123,900Filed 23 Jul 2012

Priority

JP 2011-16379827 Jul 2011

Published

US 2014/0111145 A124 Apr 2014

Granted

13 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

H02J 7/345
Parallel operation in networks using both storage and other DC sources, e.g. providing buffering: using capacitors as storage or buffering devices
B60L 50/16
Using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines: with provision for separate direct…
B60L 53/20
Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of…:…
B60W 10/26
Including control of energy storage means: for electrical energy, e.g. batteries or capacitors