An electrical system for a vehicle includes a main battery system configured to provide power for starting/cranking an engine of the vehicle, an auxiliary battery system configured to provide power for powering a set of accessory loads of the vehicle during starting/cranking of the engine, and a solid-state device disposed therebetween and including a solid-state switch configured to close/open to connect/disconnect the main and auxiliary battery systems to/from each other and intelligence circuity configured to monitor voltages in the main and auxiliary battery systems or current flowing therethrough and, based on the monitoring, commanding the solid-state switch to open to isolate the other of the main and auxiliary battery systems, wherein the isolated one of the main and auxiliary battery systems is configured to provide a degraded but operational operation of an L2+ autonomous driving feature of the vehicle.

An electrical system for a vehicle includes a main battery system configured to provide power for starting/cranking an engine of the vehicle, an auxiliary battery system configured to provide power for powering a set of accessory loads of the vehicle during starting/cranking of the engine, and a solid-state device disposed therebetween and including a solid-state switch configured to close/open to connect/disconnect the main and auxiliary battery systems to/from each other and intelligence circuity configured to monitor voltages in the main and auxiliary battery systems or current flowing therethrough and, based on the monitoring, commanding the solid-state switch to open to isolate the other of the main and auxiliary battery systems, wherein the isolated one of the main and auxiliary battery systems is configured to provide a degraded but operational operation of an L2+ autonomous driving feature of the vehicle.

A method for charging a battery set of an autonomous vehicle including: determining charging requirements of the battery set of the autonomous vehicle via a communication from the autonomous vehicle to a charging station, in response to the communication from the autonomous vehicle, connecting a plurality of batteries of the charging station in a first combination to match the charging requirements of the battery set of the autonomous vehicle; and charging the battery set of the autonomous vehicle using the plurality of batteries of the charging station in the first combination.

A method for charging a battery set of an autonomous vehicle including: determining charging requirements of the battery set of the autonomous vehicle via a communication from the autonomous vehicle to a charging station, in response to the communication from the autonomous vehicle, connecting a plurality of batteries of the charging station in a first combination to match the charging requirements of the battery set of the autonomous vehicle; and charging the battery set of the autonomous vehicle using the plurality of batteries of the charging station in the first combination.

A power path switching apparatus includes a first terminal unit and a second terminal unit provided in a battery pack that includes a plurality of battery modules, and a switching unit that is provided in the battery pack, and switches a path for supplying power from the battery modules, the first terminal unit and the second terminal unit being disposed away from each other at different positions in the battery pack, and the switching unit switches between a first state in which one of the first terminal unit and the second terminal unit serves as an output path of power, and a second state in which one of the first terminal unit and the second terminal unit different from the first state serves as an output path of power.

A method for operating a switching arrangement of an energy storage system, the energy storage system comprising a plurality of parallelly arranged battery packs and the switching arrangement comprising an associated contactor for each battery pack, the contactors being configured to connect and disconnect the battery packs relative a load by closing and opening, respectively. The method comprises disconnecting the battery packs from the load by means of the contactors such that the battery packs are disconnected in a sequence in which one contactor is opened last and thereby subject to increased disconnection wear, controlling the sequence in which the battery packs are disconnected in such a way that the increased disconnection wear is accounted for and used to distribute contactor wear among the contactors during subsequent disconnections of the battery packs from the load.

The present invention relates to a battery pack including a cell switching device of a parallel connection cell and a cell switching method, and more specifically, to a battery pack including a cell switching device that replaces the failed cell with a normal replacement cell if a failed cell occurs due to open parallel connection line or CID operation among battery cells connected in parallel, and a cell switching method.

This disclosure provides systems, methods and apparatus for an energy storage system. In one aspect, the energy storage system includes a controller configured to connect a first capacitor system and a second capacitor system in series with an output of a battery system during a high current demand event such that the voltage of the output of the battery system is supported within the voltage constraints of the output of that battery system.

This disclosure provides systems, methods and apparatus for an energy storage system. In one aspect, the energy storage system includes a controller configured to connect a first capacitor system and a second capacitor system in series with an output of a battery system during a high current demand event such that the voltage of the output of the battery system is supported within the voltage constraints of the output of that battery system.

Systems and methods are disclosed herein for a charging system. The charging system may be implemented within an independent charging station or within an autonomous vehicle. Boolean charging can be used to obtain the desired charge or discharge voltage for charging an autonomous vehicle at a charging station. By combining a subset of a sequence of batteries arrays that differ in voltage by powers of two in series, where each battery array may include multiple batteries or battery cells, a voltage may be obtained which is equal to the sum of the voltages across each battery array. This voltage may be used in turn to charge additional batteries or battery arrays. The process may be repeated until the desired amount of battery arrays has been charged and the desired voltage has been achieved.