In-vehicle control device

An in-vehicle control device comprising:

• a determination unit that determines whether or not a target contactor for connecting and disconnecting a high-voltage circuit of a battery installed in a vehicle is likely to have sticking after the high-voltage circuit is used;
• and
• a vibration control unit that performs a vibration control comprising a target vibration control to repeatedly turn on and off the target contactor when the determination unit determines that the target contactor is likely to have sticking,
• wherein the high-voltage circuit comprises a first contactor interposed on one of positive or negative sides, a second contactor interposed on the other of the positive or negative sides, and a precharge contactor connected in parallel with the first contactor and in series with a resistor,
• the vehicle comprises a capacitor connected to the battery via each of the first contactor and the second contactor,
• the target contactor is the first contactor,
• the vibration control comprises a non-target vibration control to repeatedly turn the precharge contactor on and off before the target vibration control is performed, and
• the in-vehicle control device further comprises a voltage equalization control unit that equalizes a voltage of the capacitor with a voltage of the battery by turning on the precharge contactor before the vibration control unit performs the vibration control when the determination unit determines that the target contactor is likely to have sticking.