The present invention detects a predictive abnormal phenomenon in a battery pack and prevents the use of the battery pack before power is shut off at a fuse. The battery pack comprises: a battery cell; a connection unit which is electrically connected to the battery cell and is connected to an external electrical apparatus main body; and a control unit which controls the battery cell, wherein, when detecting an abnormal state such as chattering, the control unit causes a charge prevention signal (LS) and a discharge prevention signal (LD) to be continuously output and makes the charge and discharge of the battery pack impossible (steps 226-228). The continuous output of these prevention signals is configured not to be negated by an operation of a user, and the battery pack can be made unusable by software control.

Techniques for enabling multi-pack and component connectivity detection are provided. In some configurations, individual PCMs can test the connectivity between components of a device without the need to operate the components. For example, PCMs configured in accordance with the present disclosure can test the connectivity between a motherboard, a display circuit, a camera, and a number of battery packs without the need to operate the motherboard, display circuit, camera, etc. In some configurations, conductors that are part of cables and connectors used to connect the components can be used to determine the state of one or more connections. When a signal that runs through the conductors meets one or more criteria, the PCMs of a device cause a predetermined delay prior to enabling one or more components. By testing the connectivity between components before each component transitions to an operational state, other problems caused by faulty connections can be mitigated.

Techniques for enabling multi-pack and component connectivity detection are provided. In some configurations, individual PCMs can test the connectivity between components of a device without the need to operate the components. For example, PCMs configured in accordance with the present disclosure can test the connectivity between a motherboard, a display circuit, a camera, and a number of battery packs without the need to operate the motherboard, display circuit, camera, etc. In some configurations, conductors that are part of cables and connectors used to connect the components can be used to determine the state of one or more connections. When a signal that runs through the conductors meets one or more criteria, the PCMs of a device cause a predetermined delay prior to enabling one or more components. By testing the connectivity between components before each component transitions to an operational state, other problems caused by faulty connections can be mitigated.

An apparatus for preventing overcharge of a battery in an eco-vehicle includes: a detector detecting the overcharge of the battery; and a signal processor controlling a high voltage relay according to an output signal output from the detector to block a charge of the battery.

A vehicle anomaly detection device is used in a vehicle power system. The vehicle anomaly detection device includes a target wiring portion and an anomaly detection unit. The target wiring portion constitutes at least a portion of the inter-storage power path and is a target for anomaly detection. The anomaly detection unit performs a predetermined anomaly check operation on the target wiring portion and detects an anomaly in the target wiring portion based on the result of the anomaly check operation.

A power distribution module including: a power line connecting between a battery and a load; a main relay connected to the power line; an active fuse connected to the power line on the battery side relative to the main relay; a first voltage converter connected to the power line on the load side relative to the main relay; an abnormality detection unit configured to detect an abnormality of the power line; and a first driving/control wiring extending from the first voltage converter and connected to the active fuse, wherein a first control unit mounted on the first voltage converter transmits a control signal for disconnecting the active fuse when the abnormality detection unit detects an abnormality of the power line, and the active fuse is disconnected.

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.

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.

A battery unit includes a power source; a detection part for detecting an output voltage of the power source; a connection part to which a load for atomizing an aerosol source or heating a flavor source and a charger for charging the power source are connectable; and a control part being able to execute a power supplying mode that allows supply of electric power from the power source to the load and a charging mode that allows charging of the power source by the charger, wherein if a decreased quantity of the output voltage per predetermined period in the charging mode is equal to or less than a threshold value that has been set based on a decreased quantity of the output voltage per the predetermined period in the power supplying mode, the control part determines that there is abnormality in the charging mode.

A battery unit includes a power source; a detection part for detecting an output voltage of the power source; a connection part to which a load for atomizing an aerosol source or heating a flavor source and a charger for charging the power source are connectable; and a control part being able to execute a power supplying mode that allows supply of electric power from the power source to the load and a charging mode that allows charging of the power source by the charger, wherein if a decreased quantity of the output voltage per predetermined period in the charging mode is equal to or less than a threshold value that has been set based on a decreased quantity of the output voltage per the predetermined period in the power supplying mode, the control part determines that there is abnormality in the charging mode.