A reusable battery indicator includes a voltage sensor, a communication circuit communicatively connected to the voltage sensor, an antenna operatively coupled to the communication circuit, and a connector. The connector is electrically connected to the voltage sensor, and the connector is adapted to be removably connected to a battery, thereby providing an electrical connection between the voltage sensor and the battery. An electrical circuit is completed between the voltage sensor and the battery and the voltage sensor. The connection mechanism includes part of an electrical lock and key assembly.

This document describes techniques and systems that enable battery state estimation. The techniques and systems may be used to determine a shut-down voltage for a battery of an electronic device. Additionally or alternatively, the techniques and systems may be used to determine a state-of-charge of the battery, which may be determined relative to the shut-down voltage. The techniques and systems use current or expected conditions at the battery to estimate the battery state. These techniques can allow the electronic device to dynamically set a shut-down voltage, rather than using a fixed shut-down voltage over the life of the electronic device. The dynamically set shut-down voltage can provide a low margin, and therefore a greater portion of battery capacity, when operating in good conditions and provide a relatively large margin that is sufficient for poor conditions.

A vehicle includes an electrified propulsion system powered by a traction battery over an electrical distribution system (EDS) and a controller programmed to monitor at least one of a current flow and a temperature at a plurality of locations throughout the EDS. The controller is also programmed to implement at least one mitigation action over a predetermined time window in response to detecting a filtered current value exceeding a threshold.

A vehicle includes an electrified propulsion system powered by a traction battery over an electrical distribution system (EDS) and a controller programmed to monitor at least one of a current flow and a temperature at a plurality of locations throughout the EDS. The controller is also programmed to implement at least one mitigation action over a predetermined time window in response to detecting a filtered current value exceeding a threshold.

An information processing device according to the present application includes a hardware processor functioning as an acquisition unit, a determination unit, and a provision unit. The acquisition unit acquires user information that is information relative to a user. The determination unit determines a recommended battery on the basis of the user information acquired by the acquisition unit. The recommended battery is recommended to the user and used for a moving object. The provision unit provides information relative to the recommended battery determined by the determination unit.

An information processing device according to the present application includes a hardware processor functioning as an acquisition unit, a determination unit, and a provision unit. The acquisition unit acquires user information that is information relative to a user. The determination unit determines a recommended battery on the basis of the user information acquired by the acquisition unit. The recommended battery is recommended to the user and used for a moving object. The provision unit provides information relative to the recommended battery determined by the determination unit.

A method of estimating a battery current limit for operation of a battery cell over the course of a specified prediction time. The method includes generating a plurality of current limit estimations by means of a plurality of current limit estimation sub-methods, wherein at least one current limit estimation sub-method generates its current limit estimation based on an RC equivalent circuit model of the battery cell, and determining the charge current limit by finding the lowest magnitude current limit estimation in the plurality of current limit estimations. At least one parameter of the RC equivalent circuit model is set based on the specified prediction time and at least one variable from the set of: a state of charge (SOC) of the battery cell, a temperature of the battery cell, a state of health (SOH) of the battery cell, a capacity of the battery cell, and a current of the battery cell.

A method of estimating a battery current limit for operation of a battery cell over the course of a specified prediction time. The method includes generating a plurality of current limit estimations by means of a plurality of current limit estimation sub-methods, wherein at least one current limit estimation sub-method generates its current limit estimation based on an RC equivalent circuit model of the battery cell, and determining the charge current limit by finding the lowest magnitude current limit estimation in the plurality of current limit estimations. At least one parameter of the RC equivalent circuit model is set based on the specified prediction time and at least one variable from the set of: a state of charge (SOC) of the battery cell, a temperature of the battery cell, a state of health (SOH) of the battery cell, a capacity of the battery cell, and a current of the battery cell.

A battery management system of a vehicle includes a first controller configured to control a power-on (IG ON) state and a power-off (IG OFF) state of the plurality of controllers, and a second controller including a real time clock (RTC) and configured to be woken up by directly receiving power from the secondary battery in every preset time period during a preset time calculated based on a count value provided from the RTC when a power-off state is started by the first controller and to monitor states of the main battery and the secondary battery.

A battery management system of a vehicle includes a first controller configured to control a power-on (IG ON) state and a power-off (IG OFF) state of the plurality of controllers, and a second controller including a real time clock (RTC) and configured to be woken up by directly receiving power from the secondary battery in every preset time period during a preset time calculated based on a count value provided from the RTC when a power-off state is started by the first controller and to monitor states of the main battery and the secondary battery.