US 11,539,228 B2Granted

Charging control device

AssigneeToyota Jidosha Kabushiki Kaisha

InventorsMotoharu Matsuda, Shingo Yumoto

Life of this patent

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Abstract

A CPU, when determining that the predicted minimum value of a limit value of charging power is not smaller than the minimum power of a charger, controls charging such that charging is performed in a normal mode, the normal mode being a mode in which a lower limit of a command value of supply power is the minimum power, when determining that the predicted minimum value is smaller than the minimum power, controls charging such that charging is performed in an estimation mode, that is a mode in which the lower limit of the command value is an estimated value of the minimum power of the charger, the estimated value being smaller than the minimum power, and controls charging such that charging is performed in the estimation mode by using, as the command value, power between a current limit value of the charging power and the estimated value.

Claims4

Dependent claims

A charging control device including a control unit that controls charging and discharging of a power storage device, wherein

the control unit
calculates a predicted minimum value of a limit value of charging electric power for the power storage device,
obtains, from the external charging device, a nominal value of minimum suppliable electric power of an external charging device,
determines whether or not the predicted minimum value is smaller than the nominal value,
when determining that the predicted minimum value is not smaller than the nominal value, controls charging such that charging of the power storage device from the external charging device is performed in a first mode, the first mode being a mode in which a lower limit of a command value of supply electric power from the external charging device is set to the nominal value,
when determining that the predicted minimum value is smaller than the nominal value, controls charging such that charging of the power storage device from the external charging device is performed in a second mode, the second mode being different from the first mode and being a mode in which the lower limit of the command value is set to an estimated value of the minimum suppliable electric power of the external charging device, the estimated value being smaller than the nominal value, and
controls charging such that charging is performed in the second mode by using, as the command value, electric power between a current limit value of the charging electric power for the power storage device and the estimated value.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/111,029Filed 3 Dec 2020
Priority: JP JP2019-22311010 Dec 2019
Published: US 2021/0175732 A110 Jun 2021
Granted: 27 Dec 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H02J 7/42
Characterised by the exchange of charge or discharge related data: with electronic devices having internal batteries, e.g. mobile phones
H02J 7/92
Regulation of charging or discharging current or voltage: with prioritisation of loads or sources
B60L 3/00
Electric devices on electrically-propelled vehicles for safety purposes
B60L 3/0046
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train: relating to electric energy…