POWER SUPPLY SYSTEM FOR VEHICLE

• Main Authors: ISHISHITA TERUO, MANO RYO, OGURA TAKASHI, OBATA HIROYUKI
• Format: Patent
• Language: English; Korean
• Published: 08.02.2017
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PERFORMING OPERATIONS; PHYSICS; TESTING; TRANSPORTING; VEHICLES IN GENERAL

A power supply device for a vehicle comprises a control device (80). The control device (80) calculates a control current value by subtracting an offset value from a detection value of a current sensor (72). The control device (80) calculates a first and a second determination result which determine whether a battery (70) is being charged or discharged from change in the state of charge (SOC) of the battery (70) calculated by the control current values and outputs of a voltage sensor (71). When the first determination result is different from the second determination result, the control device changes the offset values of the current sensor (72), so the first determination result matches with the second determination result. 차량의 전원 장치는, 제어 장치(80)를 포함한다. 제어 장치(80)는, 전류 센서(72)의 검출값으로부터 오프셋값을 감산함으로써, 제어 전류값을 산출한다. 제어 장치(80)는, 각각, 제어 전류값과, 전압 센서(71)의 출력에 의해 산출되는 배터리(70)의 잔용량(SOC)의 변화로부터, 배터리(70)가 충전 실행 중인진 방전 실행 중인지를 판단한 제 1 및 제 2 판단 결과를 산출하고, 제 1 판단 결과와 제 2 판단 결과가 상이한 경우에는, 제 1 판단 결과가 제 2 판단 결과와 일치하도록 전류 센서(72)의 오프셋값을 변경한다.