| 摘要 |
PROBLEM TO BE SOLVED: To detect turning-off of a system main relay by means different from a signal that turns off the system main relay.SOLUTION: An electric vehicle 100 includes: a step-up voltage circuit 20A; a primary-side smoothing capacitor 14 connected to a primary side of the step-up voltage circuit 20A; a battery 10; a system main relay 16 connected between the primary-side smoothing capacitor 14 and battery 10; a secondary-side smoothing capacitor 15 connected to a secondary side of the step-up voltage circuit 20A; an inverter circuit 30A; a vehicle-driving motor 50; a low-voltage sensor 61 for detecting a primary-side voltage; a collision sensor 64 for detecting a collision; and a control part 70 for adjusting an operation of the step-up voltage circuit 20A. Further, in a case where the collision sensor 64 detects a collision, a turning-off of the system main relay 16 is detected by the event of a primary-side voltage detected by the low-voltage sensor 61 being changed in a state where the step-up voltage circuit 20A is operated. |
