Vehicle

Patent metadata

Field	Value
Publication number	US-2016347302-A1
Application number	US-201615162170-A
Country	US
Kind code	A1
Filing date	May 23, 2016
Priority date	May 26, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A vehicle includes an electrical storage device, an auxiliary load, a charger configured to charge the electrical storage device with power supplied from a power supply outside the vehicle, and an electronic control unit. The electronic control unit is configured to create an actuation schedule of the auxiliary load during charging of the electrical storage device, before initiation of the charging. The electronic control unit is configured to learn charging power of the electrical storage device for each actuation pattern of the auxiliary load during the charging. The electronic control unit is configured to estimate a required time period for the charging based on a learned value of the charging power, an execution time period of each of the actuation patterns, and a total charging power amount of the electrical storage device. The electronic control unit sets initiation time of the charging in accordance with the estimated required time period.

First claim

What is claimed is:

1 . A vehicle comprising:
an electrical storage device; an auxiliary load configured to be actuated by consuming electric power; a charger configured to charge the electrical storage device with power supplied from a power supply outside the vehicle; and an electronic control unit configured to:
create an actuation schedule prior to initiation of charging, the actuation schedule designating time at which the auxiliary load is actuated during the charging of the electrical storage device;
stratify an actuation pattern of the auxiliary load and learn charging power of the electrical storage device for each of the actuation patterns during the charging;
estimate a required time period for the charging based on a learned value of the charging power for each of the actuation patterns, an execution time period of each of the actuation patterns in accordance with the actuation schedule, a total charging power amount obtained from a state of charge of the electrical storage device, and the state of charge being a state of charge at the time before the initiation of the charging; and
set initiation time of the charging in accordance with an estimated required time period.

2 . The vehicle according to claim 1 , wherein
the auxiliary load includes a heater configured to be actuated so as to raise a temperature of the electrical storage device when being actuated, the electronic control unit is configured to create the actuation schedule such that the heater is actuated during the charging, and the actuation patterns are separated from each other in accordance with stop and actuation of the heater.

3 . The vehicle according to claim 1 , wherein
the auxiliary load includes:
an air conditioner configured to be actuated so as to adjust a temperature inside a vehicle cabin; and
a heater configured to be actuated to raise a temperature of the electrical storage device,
the electronic control unit is configured to create the actuation schedule such that the air conditioner and the heater are actuated during the charging, and the actuation patterns are separated from each other in accordance with presence or absence of actuation of the heater and presence or absence of actuation of the air conditioner.

4 . The vehicle according to claim 1 further comprising:
a first power converter configured to convert power from the charger into drive power of the auxiliary load; and
a second power converter configured to convert power from the electrical storage device into the drive power of the auxiliary load, a power capacity of the second power converter being larger than a power capacity of the first power converter, wherein
the electronic control unit is configured to actuate at least one of the first power converter and the second power converter in accordance with an actuating situation of the auxiliary load during the charging, and
the actuation patterns are separated from each other during actuation of the first power converter and during actuation of the second power converter.

5 . The vehicle according to claim 1 , wherein
the electronic control unit is configured to learn a charging power learned value in each of the actuation patterns separately for each condition of the power supply outside the vehicle.

6 . The vehicle according to claim 1 , wherein
the electronic control unit is configured to learn a charging power learned value in each of the actuation patterns separately for each weather condition during the charging.

7 . The vehicle according to claim 1 , wherein
the auxiliary load includes plural loads, and the electronic control unit is configured to stop learning of the charging power during actuation of a particular load among the auxiliary loads.

Assignees

• Toyota Motor Co Ltd

Inventors

• Niwa Yamato
• Masuda Tomokazu
• Nomura Yoshihiro
• Machida Kiyohito
• Kuruma Yusuke

Classifications

• B60H1/00878

  the components being temperature regulating devices · CPC title

• Y10S903/907

  Electricity storage, e.g. battery, capacitor · CPC title

• B60W10/26

  for electrical energy, e.g. batteries or capacitors · CPC title

• B60L11/1875

  Operations & Transport · mapped topic

• B60W10/30

  including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps · CPC title