Battery cooling control device

Patent metadata

Field	Value
Publication number	US-11211651-B2
Application number	US-201916690579-A
Country	US
Kind code	B2
Filing date	Nov 21, 2019
Priority date	Jan 29, 2019
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

The quietness requirement level of a charging point is determined based on the position information on the charging point where an in-vehicle battery is fast charged by an external power supply. For an air conditioner that cools the in-vehicle battery through a drive power of an electric compressor when the in-vehicle battery is charged, an upper limit of a rotation speed of the electric compressor is set in such a way that the upper limit of the rotation speed of the electric compressor is set lower when the in-vehicle battery is charged by the external power supply at a charging point where the quietness requirement level is equal to or higher than a predetermined value than when the in-vehicle battery is charged by the external power supply at a charging point where the quietness requirement level is lower than the predetermined value.

First claim

What is claimed is:

1. A battery cooling control device comprising:
a determination unit configured to determine a quietness requirement level of a charging point based on position information on the charging point, the charging point being a point where an in-vehicle battery is charged by an external power supply; and
a control unit configured to set, for a cooling unit that cools the in-vehicle battery through a drive power of a motor when the in-vehicle battery is charged, an upper limit of a rotation speed of the motor in such a way that the upper limit of the rotation speed of the motor is lower when the in-vehicle battery is charged by the external power supply at a charging point where the quietness requirement level is equal to or higher than a predetermined value than when the in-vehicle battery is charged by the external power supply at a charging point where the quietness requirement level is lower than the predetermined value.

2. The battery cooling control device according to claim 1 wherein
the determination unit is configured to determine the quietness requirement level of the charging point by comparing the position information on the charging point acquired from a GPS sensor with first information or second information, the first information dividing regions on a map into regions each with a different quietness requirement level, the second information indicating the quietness requirement level of each point where the external power supply is installed.

3. The battery cooling control device according to claim 1 wherein
the charging point with the quietness requirement level equal to or higher than the predetermined value is a point included in at least one of a residential region, a nature reserve region, and a park.

4. The battery cooling control device according to claim 1 , wherein
the motor of the cooling unit is a motor of an electric compressor that circulates a heat exchange medium for cooling the in-vehicle battery.

5. The battery cooling control device according to claim 1 , wherein
the motor of the cooling unit is a blower motor that blows air to the in-vehicle battery.

6. The battery cooling control device according to claim 1 , further comprising
a sunlight detection unit configured to detect sunlight wherein
the control unit is configured to set the upper limit of the rotation speed of the motor in such a way that the upper limit of the rotation speed of the motor is lower when the in-vehicle battery is charged by the external power supply with sunlight not detected by the sunlight detection unit than when the in-vehicle battery is charged by the external power supply with sunlight detected by the sunlight detection unit.

7. The battery cooling control device according to claim 1 , further comprising
a noise detection unit configured to detect surrounding noise wherein
the control unit is configured to set the upper limit of the rotation speed of the motor in such a way that the upper limit of the rotation speed of the motor is lower when the in-vehicle battery is charged by the external power supply at a charging point where a level of the surrounding noise detected by the noise detection unit is lower than a predetermined value than when the in-vehicle battery is charged by the external power supply at a charging point where the level of the surrounding noise detected by the noise detection unit is equal to or higher than the predetermined value.

Assignees

• Toyota Motor Co Ltd

Inventors

• Kinoshita Kohji

Classifications

• H02J2105/37

  exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] · CPC title

• Y02T90/12

  Electric charging stations · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• B60L53/51

  Photovoltaic means · CPC title