Abstract: An apparatus and method for diagnosing a short circuit accident occurring at a positive electrode contactor of a battery pack. This apparatus diagnoses a positive electrode contactor of a battery pack, which includes a positive electrode contactor provided on a charge-discharge path connected to a positive electrode terminal and a negative electrode contactor provided on a charge-discharge path connected to a negative electrode terminal.

Abstract: An apparatus and method for diagnosing a short circuit accident occurring at a negative electrode contactor of a battery pack. This apparatus diagnoses a negative electrode contactor of a battery pack, which includes a positive electrode contactor provided on a charge-discharge path connected to a positive electrode terminal and a negative electrode contactor provided on a charge-discharge path connected to a negative electrode terminal.

Abstract: Disclosed is a driving circuit for an electric vehicle having a battery pack and an inverter, and a control method thereof. The driving circuit includes a first contactor connected between a first terminal of the battery pack and a first terminal of a capacitor included in the inverter, a second contactor and a current limiting circuit connected to the first contactor in parallel, and a control unit configured to control operations of the first contactor and the second contactor. The second contactor and the current limiting circuit are connected to each other in series. The current limiting circuit includes at least one resistor, wherein the control unit outputs a first control signal when the first contactor is normally operating and outputs a second control signal when the first contactor is abnormally operating. The first control signal induces the first contactor to turn on, and the second control signal induces the second contactor to turn on.

Abstract: Disclosed is a driving circuit for an electric vehicle having a battery pack and an inverter, and a control method thereof. The driving circuit includes a first contactor connected between a first terminal of the battery pack and a first terminal of a capacitor included in the inverter, a second contactor and a current limiting circuit connected to the first contactor in parallel, and a control unit configured to control operations of the first contactor and the second contactor. The second contactor and the current limiting circuit are connected to each other in series. The current limiting circuit includes at least one resistor, wherein the control unit outputs a first control signal when the first contactor is normally operating and outputs a second control signal when the first contactor is abnormally operating. The first control signal induces the first contactor to turn on, and the second control signal induces the second contactor to turn on.

Abstract: Provided is a diagnostic apparatus for a power system. The power system comprises a battery assembly and at least one contactor. Each of the at least one contactor is configured to selectively close or open a power supply path between the battery assembly and a load. The diagnostic apparatus is configured to execute one of a first diagnostic function of determining a current leakage of the battery assembly and a second diagnostic function of determining a short circuit of the at least one contactor while the other one is being executed.

Abstract: Disclosed is an apparatus and method for diagnosing a short circuit accident occurring at a positive electrode contactor of a battery pack. This apparatus diagnoses a positive electrode contactor of a battery pack, which includes a positive electrode contactor provided on a charge-discharge path connected to a positive electrode terminal and a negative electrode contactor provided on a charge-discharge path connected to a negative electrode terminal.

Abstract: An apparatus and method for diagnosing a short circuit accident occurring at a negative electrode contactor of a battery pack. This apparatus diagnoses a negative electrode contactor of a battery pack, which includes a positive electrode contactor provided on a charge-discharge path connected to a positive electrode terminal and a negative electrode contactor provided on a charge-discharge path connected to a negative electrode terminal.

Abstract: Disclosed is a driving circuit for an electric vehicle having a battery pack and an inverter, and a control method thereof. The driving circuit includes a first contactor connected between a first terminal of the battery pack and a first terminal of a capacitor included in the inverter, a second contactor and a current limiting circuit connected to the first contactor in parallel, and a control unit configured to control operations of the first contactor and the second contactor. The second contactor and the current limiting circuit are connected to each other in series. The current limiting circuit includes at least one resistor, wherein the control unit outputs a first control signal when the first contactor is normally operating and outputs a second control signal when the first contactor is abnormally operating. The first control signal induces the first contactor to turn on, and the second control signal induces the second contactor to turn on.

Abstract: Provided is a diagnostic apparatus for a power system. The power system comprises a battery assembly and at least one contactor. Each of the at least one contactor is configured to selectively close or open a power supply path between the battery assembly and a load. The diagnostic apparatus is configured to execute one of a first diagnostic function of determining a current leakage of the battery assembly and a second diagnostic function of determining a short circuit of the at least one contactor while the other one is being executed.