The present disclosure relates to a charging system and a charging method for charging a main battery of a vehicle. The main battery can be charged with a voltage of a swappable battery using a DC-DC converter of an on-board computer (OBC) without installing additional converters for a plurality of swappable batteries through connection of the plurality of swappable batteries to input terminals of a plurality of DC-DC converters of the OBC charging the main battery, so that a driving distance of the vehicle is increased, and the efficiency of a motor and the inverters is increased.

The present disclosure relates to a charging system and a charging method for charging a main battery of a vehicle. The main battery can be charged with a voltage of a swappable battery using a DC-DC converter of an on-board computer (OBC) without installing additional converters for a plurality of swappable batteries through connection of the plurality of swappable batteries to input terminals of a plurality of DC-DC converters of the OBC charging the main battery, so that a driving distance of the vehicle is increased, and the efficiency of a motor and the inverters is increased.

A machine includes a plurality of battery string modules that supply electric current to an inverter of the machine. The machine also includes a control system that opens at one contactor coupled to at least one battery string module of the plurality of battery string modules to disconnect the at least one battery string module. The other battery string modules of the plurality of battery string modules, apart from the at least one battery string module, continue supplying electric current to the inverter of the machine while the at least one battery string module is disconnected.

A battery case for an electric vehicle includes a main body in which a loading region is partitioned off for loading a plurality of battery modules, a sidewall frame forming a sidewall edge portion of the main body and extending upwards, the sidewall frame including a curving portion to correspond with a shape of a vehicle body adopting a multi-link trailing-arm suspension structure, and a first support member and a second support member which are configured to extend from the main body in the longitudinal and transverse directions for partitioning of the loading region.

A battery case for an electric vehicle includes a main body in which a loading region is partitioned off for loading a plurality of battery modules, a sidewall frame forming a sidewall edge portion of the main body and extending upwards, the sidewall frame including a curving portion to correspond with a shape of a vehicle body adopting a multi-link trailing-arm suspension structure, and a first support member and a second support member which are configured to extend from the main body in the longitudinal and transverse directions for partitioning of the loading region.

An update control apparatus of a vehicle to which a dual-power supply is applied, includes: a communication device configured to obtain update software for an update target controller from a server; a processor configured to determine whether to perform updating of a vehicle using the obtained update software by determining statuses of an auxiliary battery and a main battery of the vehicle; and a storage configured to store data and algorithms driven by the processor.

An update control apparatus of a vehicle to which a dual-power supply is applied, includes: a communication device configured to obtain update software for an update target controller from a server; a processor configured to determine whether to perform updating of a vehicle using the obtained update software by determining statuses of an auxiliary battery and a main battery of the vehicle; and a storage configured to store data and algorithms driven by the processor.

A battery module includes battery stack (2) including a plurality of stacked battery cells (1), a pair of end plates (3) disposed at both end parts in a stacking direction of battery stack (2), bind bar (4) in which the pair of end plates (3) are coupled, and electronic circuit block (6) mounted with voltage detection circuit (22) that detects a voltage of battery cells (1). Electronic circuit block (6) is disposed on an outer surface of both end plates (3) disposed at both end parts of battery stack (2), and electronic circuit block (6) is connected to battery cells (1) via voltage detection line (19).

A battery module includes battery stack (2) including a plurality of stacked battery cells (1), a pair of end plates (3) disposed at both end parts in a stacking direction of battery stack (2), bind bar (4) in which the pair of end plates (3) are coupled, and electronic circuit block (6) mounted with voltage detection circuit (22) that detects a voltage of battery cells (1). Electronic circuit block (6) is disposed on an outer surface of both end plates (3) disposed at both end parts of battery stack (2), and electronic circuit block (6) is connected to battery cells (1) via voltage detection line (19).

The invention relates to a method for connecting one or more electric battery units to an electrical system. The method comprises: maintaining a system short-circuit which short-circuits the electrical system; while the system short-circuit is maintained, electrically connecting a first electric battery unit, which is locally short-circuited by a local short-circuit, to the electrical system so as to include the first electric battery unit in the electrical system; and while the system short-circuit is maintained, removing the local short-circuit of the first electric battery unit, whereupon the first electric battery unit is short-circuited by the system short-circuit of the electrical system. The method may be performed as a part of an electrical system installation procedure in for example a hybrid or electric vehicle and allows the electric battery units to be connected to the electrical system in a safe way.