| 摘要 |
PROBLEM TO BE SOLVED: To identify a sensor to which abnormality has occurred among a plurality of sensors without increasing the number of sensors.SOLUTION: When there is no request of power output to a motor, an inverter is shut down, and control is performed so that prescribed current Iref flows between first and second boost converters, and determines whether or not two voltage sensors and two current sensor are normal (S100, S110); when not normal, a transistor of an upper arm of either the first boost converter or the second boost converter is turned on and the other transistor is turned off to determine whether or not abnormality has occurred to any of the two voltage sensors (S130 to S200) and, the inverter is controlled so that without outputting torque from the motor, current flows in the motor to determine whether or not abnormality has occurred to any of the two current sensors (S210 to S280).SELECTED DRAWING: Figure 3 |
