ELECTRIC LEAKAGE DETECTING APPARATUS, ELECTRIC LEAKAGE DETECTING METHOD, AND ELECTRIC VEHICLE

摘要

An electric leakage detection apparatus for an electric vehicle including a battery and a chassis includes a battery voltage sensor that measures a battery voltage; A first series circuit including a first resistor and a first switch connected in series between a first node connected to the negative terminal of the battery and a second node connectable to the chassis; A second series circuit including a second resistor and a second switch connected in series between the second node and a third node connected to the positive terminal; A voltage divider connected in parallel to the first series circuit and including a third resistor and a fourth resistor connected in series through a fourth node; An analog-to-digital converter configured to generate a digital signal indicative of a voltage between the first node and the fourth node; And a control unit. The control unit determines whether the battery has a short circuit based on at least one detection voltage measured by the analog-to-digital converter in a short circuit detection mode.