Abstract: A method is provided. The method includes determining a first difference in a current flowing via the battery of the vehicle during a driving event. The method also includes determining a second difference in voltage of the current flowing via the battery of the vehicle during the driving event. The method further includes determining an impedance indicator based the first difference in the current and the second difference in the voltage of the current.

Abstract: A method is provided. The method includes determining, by a battery management system of the vehicle, a difference in a voltage of a current provided to a battery of a vehicle. The method also includes determining, by the battery management system, an impedance indicator based on the current provided to the battery and the difference in the voltage of the current provided to the battery. The method further includes determining, by the battery management system, a health of the battery based on the impedance indicator.

Abstract: A method is provided. The method includes determining an open circuit voltage of a battery of a vehicle. The method also includes determining a voltage of a current provided to the battery of the vehicle. The method further includes determining a impedance indicator based on the voltage, the open circuit voltage, and the current provided to the battery of the vehicle. The method further includes determining a health of the battery based on the impedance indicator.

Abstract: Approaches, techniques, and mechanisms are disclosed for assessing battery states of batteries. According to one embodiment, raw sensor data are collected from a battery module. The battery module includes multiple battery cells. Input battery features are extracted from the raw sensor data collected from the battery module. The input battery features are used to update node states of a GNN. The GNN include multiple GNN nodes each of which representing a respective battery cell in the multiple battery cells. Estimation of one or more battery state of health (SoH) indicators is generated based at least in part on individual output states of individual GNN nodes in the multiple GNN nodes. The individual output states of individual GNN nodes in the multiple GNN nodes are determined based at least in part on the updated node states of the GNN.

Abstract: Approaches, techniques, and mechanisms are disclosed for improving carbon footprint of electric vehicles and/or homes. A time window when an electric vehicle connects with a charging station is determined. The charging station is connected with a grid from which the charging station is configured to draw electricity to charge the electric vehicle. An electricity demand of the electric vehicle is predicted based on a current state of charge (SoC) of batteries of the electric vehicle. Costs for drawing electricity from the grid during time intervals are computed. The time window is partitioned into a plurality of time intervals including the time intervals. An optimized schedule for performing operations with the batteries is generated based on the costs. The operations include those used to charge the electric vehicle to satisfy the predicted electricity demand of the electric vehicle.

Abstract: An automotive controller drives a plurality of relays to a first position or a second position depending on which of a first port and second port, that are both arranged to provide electrical power, has greater electrical power such that a traction battery receives current from the one of the first port and second port delivering the greater electrical power but not the other of the first port and second port.

Abstract: Approaches, techniques, and mechanisms are disclosed for assessing battery states of batteries. According to one embodiment, raw sensor data are collected from a battery module. The battery module includes multiple battery cells. Input battery features are extracted from the raw sensor data collected from the battery module. The input battery features are used to update node states of a GNN. The GNN include multiple GNN nodes each of which representing a respective battery cell in the multiple battery cells. Estimation of one or more battery state of health (SoH) indicators is generated based at least in part on individual output states of individual GNN nodes in the multiple GNN nodes. The individual output states of individual GNN nodes in the multiple GNN nodes are determined based at least in part on the updated node states of the GNN.

Abstract: An automotive controller drives a plurality of relays to a first position or a second position depending on which of a first port and second port, that are both arranged to provide electrical power, has greater electrical power such that a traction battery receives current from the one of the first port and second port delivering the greater electrical power but not the other of the first port and second port.

Abstract: A pre-sintered all-solid-state battery comprises a powdered lithium titanate (LTO), a powdered lithium lanthanum titanium oxide (LLTO), and a solid lithium compound configured to suppress formation of inactive phases during sintering. The solid lithium compound is about 0.5% to 10% by weight of the pre-sintered all-solid-state battery.

Abstract: A pre-sintered all-solid-state battery comprises a powdered lithium titanate (LTO), a powdered lithium lanthanum titanium oxide (LLTO), and a solid lithium compound configured to suppress formation of inactive phases during sintering. The solid lithium compound is about 0.5% to 10% by weight of the pre-sintered all-solid-state battery.

Abstract: Laser sensor lenses and methods for maintaining clean laser sensors lenses are disclosed. One method may include applying a coating having first and second components to an exterior surface of a lens of a laser sensor, the first component including a thermogenic light-absorbing (TLA) material; and irradiating the TLA material from a light source within the laser sensor to generate heat from the TLA material to cause the second component to form an active coating. The light source may be a laser of a LiDAR sensor. The heat from the TLA material may cause the second component to cure, solidify, or undergo a phase change. The active coating may be at least one of hydrophobic, oleophobic, and hydrophilic. In another embodiment, a removable cover having a TLA material may be positioned proximate the lens window and irradiated to heat the lens window (e.g., to melt ice thereon).

Abstract: Laser sensor lenses and methods for maintaining clean laser sensors lenses are disclosed. One method may include applying a coating having first and second components to an exterior surface of a lens of a laser sensor, the first component including a thermogenic light-absorbing (TLA) material; and irradiating the TLA material from a light source within the laser sensor to generate heat from the TLA material to cause the second component to form an active coating. The light source may be a laser of a LiDAR sensor. The heat from the TLA material may cause the second component to cure, solidify, or undergo a phase change. The active coating may be at least one of hydrophobic, oleophobic, and hydrophilic. In another embodiment, a removable cover having a TLA material may be positioned proximate the lens window and irradiated to heat the lens window (e.g., to melt ice thereon).