Vehicle control system

A method for a vehicle control system comprising:

• providing electricity from an inverter to a permanent magnet synchronous motor;
• connecting the inverter to the permanent magnet synchronous motor with a crossover;
• measuring the electricity provided to the permanent magnet synchronous motor;
• and
• controlling the electricity provided to the permanent magnet synchronous motor by:
• detecting whether there is an abnormality associated with providing electricity to the permanent magnet synchronous motor;
• and
• opening a contactor located between the crossover and the permanent magnet synchronous motor if an abnormality is detected.

A vehicle control system comprising:

• an inverter circuit that receives power from an overhead wire;
• a permanent magnet synchronous motor driven by power provided by inverter circuit;
• a crossover connected between the inverter circuit and the permanent magnet synchronous motor;
• an AC current detection sensor installed between the inverter circuit and the crossover;
• a contactor that is connected between the crossover and the permanent magnet synchronous motor;
• a DC current detection sensor that is connected between the inverter circuit and ground;
• and
• a control unit that is connected to the contactor, the AC current sensor, and the DC current sensor, wherein
• the control unit senses an abnormality based on the current value from at least one of the AC current sensor and the DC current sensor, and outputs an open instruction to the contactor.