승압 컨버터를 탑재한 전동 차량에 있어서, 스위칭 소자의 온도 상승을 억제한다. 제1, 제2 배터리(20, 23)와, 제1, 제2 배터리(20, 23)와 출력 전로(26) 사이에서 쌍방향으로 전압 변환을 행함과 함께, 제1, 제2 배터리(20, 23)의 접속을 직렬 또는 병렬로 전환하는 복수의 스위칭 소자(31∼34)를 포함하는 제1 전압 변환기(10)와, 차량 구동용의 모터 제너레이터(50)와, 각 스위칭 소자(31∼34)를 온ㆍ오프하는 제어부(100)를 구비하는 전동 차량(200)이며, 제어부(100)는 복수의 스위칭 소자 중에서 온도가 소정의 역치를 초과한 스위칭 소자 및 모터 제너레이터(50)의 동작점에 기초하여 제1, 제2 배터리(20, 23)와 출력 전로(26)의 접속, 또는, 제1, 제2 배터리(20, 23) 간의 접속을 전환한다.
Disclosed is a motor-driven vehicle including: a first and second battery; a voltage converter that includes a plurality of switching elements configured to perform voltage conversion between an electric power output path and the first and second battery, and to switch the connection of the first battery and the second battery between an in-series connection and an in-parallel connection; a motor-generator; and a control device configured to turn on and off the switching elements, in which the control device switches connection to either of connection between the electric power output path and both the first battery and the second battery, and connection between the first battery and the second battery based on the switching element temperature, and the operating point of the motor-generator.
MOTOR-DRIVEN VEHICLE
전동 차량
2019-03-07
Patent
Electronic Resource
Korean
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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