CURRENT OFFSET HANDLING METHOD OF HIGH VOLTAGE BATTERY SYSTEM OF A CAR CAPABLE OF MEASURING AND DIAGNOSING CURRENT OFFSET OF A HIGH VOLTAGE BATTERY IN A CAR HAVING HIGH VOLTAGE BATTERY SYSTEM

摘要

PURPOSE: A current offset handling method of high voltage battery system of a car is provided to measure current offset of a current sensor more accurately and reliably, thereby securing the control safety of a high voltage battery system with applying the right and stable current offset.;CONSTITUTION: A current offset handling method of high voltage battery system of a car is as follows; a stage of measuring current offset at least two times after main relay is off in ignition off(S10), a stage of calculating an average of measured current offsets(S20), a stage of storing the calculated average value to a storing device as s current offset which will be used afterwards, a stage of reading and using the current offset stored in the storing device in a ignition off.;COPYRIGHT KIPO 2011