A method is applied to the battery management system, and the method may include: detecting a current state of charge of the traction battery; when the current state of charge is less than a first preset state of charge and greater than or equal to a second preset state of charge, and the switcher is in the on state, turning off the switcher; and when the current state of charge is less than the first preset state of charge and greater than or equal to the second preset state of charge, and the switcher is in an off state, if a hardware trigger signal is received, turning on the switcher, where the second preset state of charge is less than the first preset state of charge.

A control device distributes electric power from a battery to an electric power feed terminal when the remaining level of a battery is equal to or higher than a predetermined value with an ignition off. Therefore, an electronic component can be charged after being connected to the electric power feed terminal, even with the ignition off. When the remaining level of the battery is lower than the predetermined value, the distribution of electric power from the battery to the electric power feed terminal is shut off, so the electric component can be stopped from being charged, even after being connected to the electric power feed terminal. In consequence, even when the electronic component can be charged after being connected to the electric power feed terminal with the ignition off, a battery remaining level that is needed when a vehicle runs next time can be ensured.

Systems and methods for vehicle communication are provided, for example to provide various connectivity and functionality according to hardware availability, power constraints, and environmental conditions, among other examples.

An in-vehicle power control system includes a first load control unit and a power control device. In the power control device, switch units respectively switch the second conductive paths between an electrically connected state and a not-electrically connected state. A second load control unit predetermines types of switch units, and, if the second load control unit has received, from the first load control unit, a power reduction instruction in which a control method is designated by type, controls the switch units for each type thereof based on the control methods designated by type by the power reduction instruction.

An apparatus for supplying power to a set of drivers that charge and discharge a set of electrochromic devices is described. One apparatus includes a multi-source power supply with at least a set of batteries, a driver interface to supply the power to the set of drivers and controller circuitry. The controller circuit determines a power state of the multi-source power supply. The controller circuit limits the set of drivers to a first total amount of power or a second total amount of power, supplied by the multi-source power supply in a switching state of at least one of the set of electrochromic devices, while the multi-source power supply is in a first power state or a second power state, respectively.

In general, one or more loads on a vehicle can be connected to both a first voltage source on the vehicle and a backup vehicle power system on the vehicle. If the voltage provided by the first voltage source to the one or more loads satisfies a voltage threshold, the backup vehicle power system does not provide power to the one or more loads. However, if the voltage provided by the first voltage source to the one or more loads falls below the voltage threshold, the backup vehicle power system provides power to the one or more loads.

An apparatus, including a first circuit which contains a first load which does not draw current from a first battery when not operating, and includes an electric motor of an electric vehicle or hybrid vehicle; a second circuit which contains a second load which draws current from a second battery when the first load is not operating or is non-operational; a first switch which is capable of disconnecting the first battery from the first circuit; a second switch which is capable of connecting the first battery to the first circuit; and at least one recharger which is capable of recharging the first battery and the second battery when the first load is operating. The apparatus is capable of providing electrical power to the second load when the at least one recharger ceases to operate or becomes non-operational. The first load is an eaxle.

The present application describes power tier management for a battery of a light electric vehicle. In examples, a power tier of a battery may have an associated threshold power and time to exert a battery energy over the time of the power tier. Power tiers may be adjusted to lengthen or shorten an overall battery life and remaining battery life of the battery of the light electric vehicle. In an aspect, a processor may control or limit power to specific components and/or functions of the light electric vehicle to stay within or enter a determined power tier. Information may be received and processed by the processor to determine and apply one or more power tiers.

A flexible load management (FLM) system and technique adaptively monitors and manages power consumption of a premises. The FLM system includes a virtual critical load panel (vCLP) that utilizes circuit breakers in combination with companion modules (i.e., intelligent controllers) to vary a prioritization arrangement of loads in the premises by time of day, season or even dynamically. The vCLP is a prioritized enumeration (i.e., prioritization) of the loads within the premises, wherein the loads are considered sufficiently important such that they are protected by a local power source. The vCLP is dynamically configurable by a user in real time according to an instantaneous demand for the prioritized loads that is used to determine a number of branch circuits associated with the loads that is able to be powered-on at any time.

A flexible load management (FLM) system and technique adaptively monitors and manages power consumption of a premises. The FLM system includes a virtual critical load panel (vCLP) that utilizes circuit breakers in combination with companion modules (i.e., intelligent controllers) to vary a prioritization arrangement of loads in the premises by time of day, season or even dynamically. The vCLP is a prioritized enumeration (i.e., prioritization) of the loads within the premises, wherein the loads are considered sufficiently important such that they are protected by a local power source. The vCLP is dynamically configurable by a user in real time according to an instantaneous demand for the prioritized loads that is used to determine a number of branch circuits associated with the loads that is able to be powered-on at any time.