Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for wireless charging using time-division multiplexing. In some implementations, a wireless charger is configured to concurrently charge multiple devices by providing power wirelessly to individual devices in different time periods. The wireless charger can perform time-division multiplexing by selectively directing the output of a single driver circuit to different power transfer coil segments at different times. The wireless charging sessions of multiple devices can be maintained by repeating a pattern of activating different power transfer coil segments one by one in successive time periods.

Abstract: A wireless power transfer arrangement (20) for a wireless power transfer across an airgap (9) by inductive coupling, for example for charging the battery (31) of an electric vehicle, includes a primary side (21) with a primary pad (22) for generating a magnetic field (28) into the airgap (9) and a secondary side (24) arranged on the other side of the airgap (9) that picks up the magnetic field (28) and provides the energy received through the magnetic field (28) to the battery (31). The primary side (21) is for example installed at a charging station and the secondary side (24) is comprised by the electric vehicle. In order to control the charging process during the power transfer, a wireless communication channel (38) is provided between the primary (21) and the secondary (24) by means of two wireless transceivers (35, 36). According to the invention, the wireless transceivers (35, 36) are adapted such that their communication range is less than twice a largest spatial extent of the primary pad.

Abstract: Methods and system are described for recalibrating a charge storage capacity value of an electric energy storage device. In one example, the charge electric energy storage device may be a battery. The charge storage capacity value may be recalibrated via discharging and charging a battery via electric vehicle supply equipment.

Abstract: The present disclosure provides systems and methods for offsetting parasitic energy losses of a battery energy storage system (BESS). A method may include determining, by one or more processors of a renewable energy power plant coupled to an energy grid, a condition is satisfied; and responsive to the determination, adjusting, by the one or more processors, a state of a switch from a first state configured to couple a second BESS with a renewable energy source (RES) to a second state configured to couple the second BESS with the BESS. The RES configured to charge the T-BESS when the switch is in the first state and the T-BESS configured to send energy to the devices to satisfy energy requirements of the devices when the switch is in the second state.

Abstract: A charging method for a secondary battery including a lithium-supplementing material. The method includes acquiring a first state of health of the secondary battery in response to the secondary battery being at a preset charging node, activating the lithium-supplementing material in response to the first state of health being less than or equal to a first threshold to supplement lithium for the secondary battery, performing a charging process on the secondary battery, determining a second state of health of the secondary battery based on a working parameter of the secondary battery in the charging process, and charging the secondary battery in response to the second state of health being greater than a second threshold.

Abstract: An on-board charger and a control method thereof are provided. The on-board charger includes a control pilot (CP) receiving module that detects a CP signal and a proximity detection (PD) receiving module that detects a PD signal. A processor repeatedly executes a low power run mode that supplies a voltage to the CP receiving module and the PD receiving module in a standby state for reservation charging and a completion state of reservation charging, and a low power stop mode that blocks a voltage supplied to the CP receiving module and the PD receiving module at predetermined periods.

Abstract: A method of controlling battery preconditioning in a vehicle includes determining a first preconditioning characteristic of a first battery of a first vehicle relative to a charging station. The method further includes transmitting the first preconditioning characteristic. The method further includes receiving, from a second vehicle, a second preconditioning characteristic of a second battery relative to the charging station. The method further includes comparing the first preconditioning characteristic and the second preconditioning characteristic to determine a preconditioning ranking for the first vehicle and the second vehicle. The method further includes determining a queue of the first and second vehicles for the charging station using the preconditioning ranking of the first and second vehicles.

Abstract: 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.

Abstract: Systems and methods for temperature control for an energy source of a material handling vehicle. The system includes a battery management system in communication with the energy source that can also be in communication with a charger. The system further includes a counterweight case that supports the energy source, and a plurality of resistive heating elements positioned along one or more surfaces of the counterweight case.

Abstract: A protection and/or charging assembly includes a power apparatus, a protection housing, a charging apparatus and/or a locking assembly. The power apparatus provides electrical power to components of the protection and/or charging assembly. The protection housing houses one or more personal belongings and/or electronic devices. The charging apparatus receives power from the power apparatus and charges the one or more electronic devices. The locking assembly locks and/or unlocks the protection housing and allows the one or more personal belongings to be stored in an interior of the protection housing.

Abstract: An embodiment provides a battery protection circuit, including: a detection circuit portion that outputs a wake-up signal when a voltage is input to an outer terminal, a controller that outputs a switching control signal when the wake-up signal is received from the detection circuit portion, and a switching portion that controls a connection of a battery module and the outer terminal according to the switching control signal.

Abstract: A method for controlling a power supply device of an electrical system, the device including at least one separate power supply assembly per phase of the electrical system, each power supply assembly including at least one battery pack defined by a state parameter and provided with at least one battery to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value. The method includes executing at least one correction block receiving as input each setpoint value and the state parameter of each battery pack of the power supply assemblies of the system, and for each power supply assembly, the correction block is configured to determine a correction value to be applied directly or indirectly to its setpoint value.

Abstract: The present disclosure provides systems and methods for offsetting parasitic energy losses of a battery energy storage system (BESS). A method may include determining, by one or more processors of a renewable energy power plant coupled to an energy grid, a condition is satisfied; and responsive to the determination, adjusting, by the one or more processors, a state of a switch from a first state configured to couple a second BESS with a renewable energy source (RES) to a second state configured to couple the second BESS with the BESS. The RES configured to charge the T-BESS when the switch is in the first state and the T-BESS configured to send energy to the devices to satisfy energy requirements of the devices when the switch is in the second state.

Abstract: An example operation includes one or more of sensing that a transport in a group is performing at an efficiency below a threshold and modifying at least one other transport in the group to perform at an efficiency above the threshold, wherein the efficiency above the threshold is similar to efficiency below the threshold, wherein the modification occurs at a final portion of a route of the at least one other transport.

Abstract: A charging control apparatus includes a battery, an electric charge mover, and a processor. The battery includes multiple cells. The electric charge mover is configured to move electric charge between the multiple cells. The processor is configured to, upon charging the battery, cause the electric charge mover to move the electric charge of one or more cells serving as a part of the multiple cells to another one or more cells of the multiple cells, and perform a partial charging that charges the one or more cells serving as the part of the multiple cells after causing the electric charge mover to move the electric charge.

Abstract: One or more of the present embodiments provide for a battery cell balancing system and strategy that delivers more efficient use of battery capacities as needed for different use cases. For example, a balancing circuit is provided to support targeted battery cell passive and active balancing according to a balancing strategy for the use cases. Further the balancing circuit allows for cell balancing to be performed while the battery cells are collectively being charged or discharged.

Abstract: A parking system includes a parking facility, a moving device, charging and discharging equipment, a battery-state detector, and a control processor. The control processor is configured to cause the moving device to move, to a first parking lot with a high temperature, vehicles in the parking facility scheduled to travel, and to move, to a second parking lot with a low temperature, vehicles not scheduled to travel. The control processor is configured to cause or instruct the charging and discharging equipment to perform charging of a drive battery of an unsatisfied vehicle on the basis of a state-of-charge value of drive batteries of the vehicles present in the first parking lot detected by the battery-state detector. The unsatisfied vehicle is a vehicle that is the vehicle in the first parking lot and whose drive battery has a charge state that does not reach a predetermined charge state.

Abstract: A computer-implemented method for scheduling pre-departure charging for electric vehicles includes predicting a user-departure time based on a first machine learning prediction model. The method further includes determining a cabin temperature to be set for the user at the user-departure time based on a second machine learning prediction model. The method further includes determining a battery-temperature to be set at the user-departure time based on a third machine learning prediction model. The method further includes determining a present charge level of a battery of the electric vehicle. The method further includes computing a charging start-time to start charging the battery based on one or more attributes of a charging station to which the electric vehicle is coupled, and based on the user-departure time, the cabin temperature, and the battery-temperature. The method further includes initiating charging the battery at the charging start-time.

Abstract: An RF charging system for implantable medical devices. The RF charging system includes a radio frequency (RF) signal, a first antenna configured to transmit the RF signal, a second antenna configured to receive the RF signal transmitted by the first antenna, tune characteristics of the RF signal, and improve power transfer with impedance matching circuitry, an RF to direct current (DC) converter configured to convert the RF signal of the second antenna into a DC signal, and a battery management circuit configured to receive the DC signal and provide voltage to a battery.

Abstract: The present disclosure relates to systems and methods for managing a state of charge of a hybrid vehicle battery using an eCAT. Electrical energy is provided to a hybrid system for storage at the battery of the hybrid system. A first state of charge of the battery of the hybrid system is determined. Upon determining that the first state of charge is within a predetermined upper range, a determination is made as to whether to increase energy supplied to one or more hybrid vehicle components, the one or more hybrid vehicle components comprising at least the eCAT. At least a portion of the electrical energy is consumed at the eCAT.