METHOD AND SYSTEM FOR LIMITING INPUT CURRENT OF OIL PUMP CONTROL UNIT OF HYBRID ELECTRIC VEHICLE

• Main Authors: YI, JAE SHIN, LEE, JANG MI, LEE, HAK SUNG, KIM, GYEONG CHEOL, SONG, SANG LOK
• Format: Patent
• Language: English; Korean
• Published: 08.07.2014
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The present invention relates to a method and a system for limiting an input current to an oil pump control unit of a hybrid vehicle, which can prevent hardware damage to an internal power device (power circuitry) of the oil pump control unit and a transmission by limiting an overcurrent when the overcurrent is introduced into the oil pump control unit of the hybrid vehicle. To achieve this, the method for limiting an input current to an oil pump control unit of a hybrid vehicle according to an embodiment of the present invention comprises the steps of determining whether an input current to the oil pump control unit is greater than or equal to a set overcurrent value; and limiting the input current to a set limit or less when the input current is greater than or equal to the set overcurrent value.