Abstract: A battery information requesting apparatus according to embodiments of the present disclosure may include a communicator configured to communicate with a battery information providing device; a target information determiner configured to determine target information to be obtained; a target battery determiner configured to determine an offset for a target battery from which the target information is to be obtained in a preset battery list; and a controller configured to generate a request packet including the target information and the offset, send the generated request packet to the battery information providing device through the communicator, and receive a response packet including the battery information of the target battery corresponding to the target information from the battery information providing device through the communicator as a response to the request packet.

Abstract: A battery management apparatus according to an embodiment of the present disclosure includes: a communication unit configured to output test information related to a battery; and a control unit configured to generate at least one test information related to the battery, select any one communication channel among a plurality of communication channels based on any one of a data amount of the generated test information and a state of the plurality of communication channels, generate a message packet including the test information based on a type of the selected communication channel and the data amount of the generated test information, and output the generated message packet to the selected communication channel through the communication unit.

Abstract: A communication system includes an information requesting device configured to generate a first communication packet including request information for each generated diagnostic trouble code when at least one diagnostic trouble code is generated and to output the generated first communication packet, and an information providing device configured to receive the first communication packet, extract each request information included in the received first communication packet, extract diagnosis information corresponding to each of the extracted request information, generate a second communication packet including answer information and at least one diagnosis information corresponding to each other to be distinguished from each other, and transmit the generated second communication packet to the information requesting device.

Abstract: A battery management apparatus according to an embodiment of the present disclosure includes: a communication unit configured to output test information related to a battery; and a control unit configured to generate at least one test information related to the battery, select any one communication channel among a plurality of communication channels based on any one of a data amount of the generated test information and a state of the plurality of communication channels, generate a message packet including the test information based on a type of the selected communication channel and the data amount of the generated test information, and output the generated message packet to the selected communication channel through the communication unit.

Abstract: A diagnosis information generating apparatus according to an embodiment of the present disclosure includes: an input unit configured to receive diagnosis request information including data identification information for at least one of a plurality of diagnosis items of a diagnosis target and diagnosis data corresponding to the data identification information; a control unit configured to receive the diagnosis request information from the input unit, calculate a diagnosis data amount for the data identification information and the diagnosis data included in the diagnosis request information, select a packet structure corresponding to the calculated diagnosis data amount among a plurality of packet structures, and generate a communication packet including the diagnosis request information based on the selected packet structure; and a communication unit configured to output the communication packet generated by the control unit to an external diagnosing device as diagnosis information for the diagnosis target.

Abstract: A current sensor diagnosing apparatus for diagnosing an error of a plurality of current sensors connected to a secondary battery cell. The current sensor diagnosing apparatus may diagnose an error of a current sensor in the same way regardless of the type of a system using the current sensor, the type of a current source, a voltage characteristic, or the like by diagnosing an error of current sensors using offset deviations and current values of two current sensors and may be particularly applied to various systems including a plurality of current sensors.

Abstract: The present disclosure is directed to providing a battery management apparatus and method, which may shorten a transmission time of a plurality of response information by flexibly selecting a communication channel. According to an aspect of the present disclosure, transmission efficiency for a plurality of response information may be improved because a communication channel may be flexibly selected according to a data amount of response information to be transmitted. In addition, according to an aspect of the present disclosure, there is an advantage that a communication channel may be flexibly selected according to a state of each of a plurality of communication channels as well as the data amount of response information.

Abstract: A battery management system protects a main contactor from inrush currents, wherein the main contactor opens and closes a charge/discharge path connected between a first battery and an electrical load before pre-charging of a capacitor provided on the side of the electrical load is completed. The battery management system double-checks whether the pre-charging of the capacitor is completed based on a voltage across the capacitor and a voltage across the main contactor. The battery management system keeps a contact of the main contactor in an open operational position when the voltage across the capacitor is less than a first threshold voltage or the voltage across the main contactor is equal to or higher than a second threshold voltage.

Abstract: A current sensor diagnosing apparatus for diagnosing an error of a plurality of current sensors connected to a secondary battery cell. The current sensor diagnosing apparatus may diagnose an error of a current sensor in the same way regardless of the type of a system using the current sensor, the type of a current source, a voltage characteristic, or the like by diagnosing an error of current sensors using offset deviations and current values of two current sensors and may be particularly applied to various systems including a plurality of current sensors.

Abstract: A battery management system protects a main contactor from inrush currents, wherein the main contactor opens and closes a charge/discharge path connected between a first battery and an electrical load before pre-charging of a capacitor provided on the side of the electrical load is completed. The battery management system double-checks whether the pre-charging of the capacitor is completed based on a voltage across the capacitor and a voltage across the main contactor. The battery management system keeps a contact of the main contactor in an open operational position when the voltage across the capacitor is less than a first threshold voltage or the voltage across the main contactor is equal to or higher than a second threshold voltage.