| 摘要 |
PROBLEM TO BE SOLVED: To identify an abnormal state of current sensors 34, 36 which detect a current flowing through an MG 10.SOLUTION: The MG 10 is stopped once when abnormality is detected in the current sensors 34, 36. Thereafter, based on a temperature Tup of a switching element Sup when a reactive current is made to flow and a temperature of cooling water for cooling an inverter 16, an estimated value of the current flowing through the switching element Sup is calculated. The above calculation of the estimated value is made twice by changing the magnitude of the reactive current. Then, based on a current iu which is detected by the current sensor 34 when the reactive current is made to flow and the estimated value, a gain deviation amount of the current sensor 34 and an offset deviation amount is identified. |
