Electrically operated vehicle abnormality judging device

An electrically operated vehicle abnormality judging device comprising:

• an electrically operated machine;
• a driving signal generation processing section operable to generate a driving signal by receiving a command value for operating the electrically operated machine;
• an inverter operable to perform a switching operation by receiving said driving signal and generating and supplying an electric current to said electrically operated machine;
• a line for driving for connecting said driving signal generation processing section and the inverter;
• lines for judgment comprising:
• a first line for judgment, branched from the line for driving to a power source, connecting the line for driving to the power source;
• and
• a second line for judgment for connecting said line for driving and a ground;
• and
• an abnormality judgment processing means operable to judge whether an abnormality is generated in said line for driving on the basis of a signal of the line for judgment;
• wherein said abnormality judgment processing means judges whether an abnormality is generated in said line for driving by monitoring voltages generated in the first line for judgment;
• and
• wherein said lines for judgment makes the line for judgment and the lines for driving generate voltages by connecting the power source to the line for driving.