Vehicle including charger and electronic control unit configured to control the charger, and control method for controlling charger of vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60L-011/18
B60L-011/12
B60K-006/46
출원번호
US-0462199
(2017-03-17)
등록번호
US-9827860
(2017-11-28)
우선권정보
JP-2016-057201 (2016-03-22)
발명자
/ 주소
Kuribara, Fumiyoshi
Asano, Shigetaka
출원인 / 주소
Toyota Jidosha Kabushiki Kaisha
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
0인용 특허 :
1
초록▼
A vehicle includes a high voltage battery, a charger and an ECU. When electric power from an external power supply is equal to or less than first predetermined electric power and first power feeding control to feed electric power to a low voltage system power line is performed, the ECU is configured
A vehicle includes a high voltage battery, a charger and an ECU. When electric power from an external power supply is equal to or less than first predetermined electric power and first power feeding control to feed electric power to a low voltage system power line is performed, the ECU is configured to control the charger to: continue the drive of the charger when a first predetermined time has not elapsed from a start of the first power feeding control or when charged electric power of the high voltage battery is greater than second predetermined electric power that is smaller than the first predetermined electric power after the first predetermined time has elapsed; and stop the drive of the charger when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed.
대표청구항▼
1. A vehicle comprising: a motor for traveling;a high voltage battery connected to the motor through a high voltage system power line;a charger connected to the high voltage system power line and configured to charge the high voltage battery using electric power from an external power supply;a low v
1. A vehicle comprising: a motor for traveling;a high voltage battery connected to the motor through a high voltage system power line;a charger connected to the high voltage system power line and configured to charge the high voltage battery using electric power from an external power supply;a low voltage battery connected to a low voltage system power line;a first DC-to-DC converter connected to the high voltage system power line and the low voltage system power line, the first DC-to-DC converter being configured to supply electric power of the high voltage system power line to the low voltage system power line with deboosting a voltage;a second DC-to-DC converter connected to a location of the high voltage system power line on a charger side from the first DC-to-DC converter and the low voltage system power line, the second DC-to-DC converter having a rated output smaller than a rated output of the first DC-to-DC converter, and the second DC-to-DC converter being configured to supply electric power of the high voltage system power line to the low voltage system power line with deboosting a voltage; andan electronic control unit configured to control the charger to charge when the charger and the external power supply are connected, the electronic control unit being configured to perform first power feeding control so as to feed electric power to the low voltage system power line with the first DC-to-DC converter when the charger is charging and when the low voltage battery has to be charged,wherein, when the charger is charging, electric power from the external power supply is equal to or less than first predetermined electric power, and the first power feeding control is being performed, the electronic control unit is configured to i) control the charger such that charging is continued when a first predetermined time has not elapsed from a start of the first power feeding control,ii) control the charger such that charging is continued when charged electric power of the high voltage battery is greater than second predetermined electric power after the first predetermined time has elapsed from the start of the first power feeding control, the second predetermined electric power being smaller than the first predetermined electric power, andiii) control the charger such that charging is stopped when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed from the start of the first power feeding control. 2. The vehicle according to claim 1, wherein, the electronic control unit is configured to perform second power feeding control so as to feed electric power to the low voltage system power line with the second DC-to-DC converter when the charger is charging and the low voltage battery does not need to be charged,the electronic control unit is configured to control the charger to continue charging when the charger is charging, electric power from the external power supply is equal to or less than the first predetermined electric power, the second power feeding control is performed, and the charged electric power of the high voltage battery is greater than the second predetermined electric power, andthe electronic control unit is configured to control the charger to stop charging when the charger is charging, electric power from the external power supply is equal to or less than the first predetermined electric power, the second power feeding control is performed, and the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power. 3. The vehicle according to claim 2, wherein, the electronic control unit is configured to compare the charged electric power of the high voltage battery with the second predetermined electric power after a second predetermined time has elapsed from the start of the second power feeding control while the second power feeding control is performed, and the second predetermined time is a time shorter than the first predetermined time. 4. A control method for a vehicle including a motor for traveling,a high voltage battery connected to the motor through a high voltage system power line,a charger connected to the high voltage system power line and configured to charge the high voltage battery using electric power from an external power supply,a low voltage battery connected to a low voltage system power line,a first DC-to-DC converter connected to the high voltage system power line and the low voltage system power line, the first DC-to-DC converter being configured to supply electric power of the high voltage system power line to the low voltage system power line with deboosting a voltage,a second DC-to-DC converter connected to a location of the high voltage system power line on a charger side from the first DC-to-DC converter and the low voltage system power line, the second DC-to-DC converter having a rated output smaller than a rated output of the first DC-to-DC converter, and the second DC-to-DC converter being configured to supply electric power of the high voltage system power line to the low voltage system power line with deboosting a voltage, andan electronic control unit,the control method comprising:controlling the charger, by the electronic control unit, to charge when the charger and the external power supply are connected;controlling the first DC-to-DC converter, by the electronic control unit, to perform first power feeding control so as to feed electric power to the low voltage system power line when the charger is charging and the low voltage battery has to be charged; andwhen the charger is charging, electric power from the external power supply is equal to or less than first predetermined electric power, and the first power feeding control is performed, controlling the charger, by the electronic control unit, to i) continue charging when a first predetermined time has not elapsed from a start of the first power feeding control,ii) continue charging when charged electric power of the high voltage battery is greater than second predetermined electric power after the first predetermined time has elapsed from the start of the first power feeding control, the second predetermined electric power being smaller than the first predetermined electric power, andiii) stop charging when the charged electric power of the high voltage battery is equal to or less than the second predetermined electric power after the first predetermined time has elapsed from the start of the first power feeding control.
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이 특허에 인용된 특허 (1)
Kubo, Asami; Goto, Kenichi, Control device for hybrid vehicle.
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