US 2011/0210698 A1Published application

Onboard charging control apparatus for controlling charge to secondary battery

AssigneeDenso Corporation

InventorNaoto SAKAI

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Abstract

A vehicle has an ECU, a battery being chargeable with off-board electricity and a motor driven by electric power of the battery. The ECU has a microcomputer to receive an operation time each time a user sets the ECU in an operation state, prepare a frequency of operation times for each time zone, and set a time of the time zone corresponding to the high frequency as a charging end target time. When the microcomputer receives a signal from an onboard charger connected with an off-board power source, the microcomputer sets a charging schedule such that the battery charged by the charger according to the schedule is set in a fully-charged state at the charging end target time. The microcomputer controls the charger to charge the battery according to the schedule and to set the battery in the fully-charged state at the charging end target time.

Claims17

Dependent claims

An onboard charging control apparatus which is mounted on a vehicle having a secondary battery being chargeable with off-board electricity, a motor driven by electric power of the secondary battery, and a charger outputting a charging start signal in response to reception of the off-board electricity, comprising:

a present time outputting unit that outputs a time signal indicating a present time;
a charging start signal receiving unit that receives the charging start signal outputted from the charger;
an operation signal receiving unit that receives an operation signal indicating an operation state of the vehicle;
a charging end target time setting unit that receives the time signal from the present time outputting unit in response to the reception of the operation signal in the operation signal receiving unit and sets a charging end target time based on the present time of the received time signal;
and
a charging control unit that receives the time signal from the present time outputting unit in response to the reception of the charging start signal in the charging start signal receiving unit, sets a charging schedule, based on the charging end target time and the present time of the time signal received in response to the reception of the charging start signal, such that the secondary battery charged according to the charging schedule is set in a state of charge, denoting a predetermined charging rate, in a charging end target time zone including the charging end target time, produces a charging control signal indicating the charging schedule according to the time signal of the present time outputting unit, and outputs the charging control signal to the charger such that the charger performs charging of the secondary battery according to the charging schedule.

3 more elements

a present time outputting unit that outputs a time signal indicating a present time;
a charging start signal receiving unit that receives the charging start signal outputted from the charger;
and
a charging control unit that sets a specific time zone, sets a charging schedule, in response to the reception of the charging start signal in the charging start signal receiving unit, such that a charge to the secondary battery is performed in the specific time zone to set the secondary battery in a state of charge denoting a predetermined charging rate, produces a charging control signal indicating the charging schedule according to the time signal of the present time outputting unit, and outputs the charging control signal to the charger such that the charger performs a charge to the secondary battery in the specific time zone according to the charging schedule.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 12/984,765Filed 5 Jan 2011
Priority: JP 2010-04265626 Feb 2010
Published: 1 Sep 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B60L 53/14
Characterised by the energy transfer between the charging station and the vehicle: conductive energy transfer
B60L 53/11
Characterised by the energy transfer between the charging station and the vehicle: dC charging controlled by the charging station, e.g. mode 4
B60L 53/63
Monitoring or controlling charging stations: in response to network capacity
B60L 53/64
Monitoring or controlling charging stations: optimising energy costs, e.g. responding to electricity rates