Abstract: In one embodiment, a vehicle battery diagnostics system forecasts a future state for a battery by monitoring, over a period of time, one or more of voltage, current or temperature signals from at least one battery of the vehicle, storing information from the voltage, current or temperature signals as time-series data, obtaining a forecasting model from a server, the forecasting model indicating at least one shapelet feature that corresponds to a forecast categorization, identifying, in the time-series data, a shapelet that matches the at least one shapelet feature to a degree exceeding a predetermined similarity threshold, and providing a notification indicating the forecast categorization.

Abstract: A battery management system includes one or more processors, a battery comprising a plurality of cells, an output device, an input device, and a memory having an input module, a battery characteristic prediction module, and an output module. The input module includes instructions that cause the one or more processors to receive a mode selection from a user via the input device. The battery characteristic prediction module includes instructions that cause the one or more processors to predict a characteristic of the battery based on the mode selection using an active machine learning model to predict the characteristic of the battery. The output module includes instructions that cause the one or more processors to output an estimated cost to the output device based on the characteristic of the battery determined by the active machine learning model.

Abstract: A high surface area to mass catalyst is formed by a method that includes a Kirigami mapped cutting of a flat three metal laminate composite formed on a deposition support. Kirigami derived catalyst has a shape that provides a high surface to mass ratio and promotes the flow of a fluid containing a reagent for a reaction catalyzed by the exterior metal catalyst films of the three metal laminate composite. Structural integrity of the Kirigami derived catalyst results from a support metal film residing between two metal catalyst films. The shaping to the Kirigami derived structure involves cutting the flat three metal laminate composite to that of a Kirigami map, imposing stress on the cut structure to force a non-planar deformation, and delaminating the Kirigami derived catalyst from the deposition support.

Abstract: Motor vehicles use biomagnetic sensors to determine global position by detecting Earth's geomagnetic field. Magnetosensitive bioparticles, such as magnetotactic bacteria or organelles from a magnetoreceptive eukaryotic species, are dispersed in a gel medium. The magnetosensitive bioparticles generate a local magnetic moment that changes in response to fluctuations in the immediate geomagnetic field vector, the latter of which is dependent on global position. An integrated circuit, such as an array of superconducting quantum detects changes in the local magnetic moment, and a controller thereby determines the ambient geomagnetic field vector. The controller accesses a database having a correlation of geomagnetic field vector and geolocation.

Abstract: In one embodiment, a vehicle battery diagnostics system forecasts a future state for a battery by monitoring, over a period of time, one or more of voltage, current or temperature signals from at least one battery of the vehicle, storing information from the voltage, current or temperature signals as time-series data, obtaining a forecasting model from a server, the forecasting model indicating at least one shapelet feature that corresponds to a forecast categorization, identifying, in the time-series data, a shapelet that matches the at least one shapelet feature to a degree exceeding a predetermined similarity threshold, and providing a notification indicating the forecast categorization.

Abstract: 2-manifold structures are structures having continuously curvilinear surfaces, with no kinks or sharp angles. Methods for building strong, lightweight 2-manifold structures include a computer implemented strength optimization process. The computer implemented process includes a structure optimization sub-routine in which a plurality of rod-like members, constituting an irregular scaffold, is constrained into a volume corresponding to the 2-manifold structure. The strength of the irregular scaffold is then optimized by application of an algorithm that maximizes strength as a function of variations in the ratio of the largest macroscopic dimension of the panel to the average length of the members; the aspect ratio of the members (diameter divided by length); the average or maximum number of times a member can contact another member; and the distribution of member lengths. Strength maximization can be simultaneous to minimization of total length of the members.

Abstract: A battery protection system that attenuates the impact of a thermal event above 100° C. in the environment of a battery includes at least one inorganic phase change material (IPCM). The IPCM undergoes a solid-solid or solid-liquid phase change at temperatures in excess of 100° C. and with a heat absorption of at least 50 kJ/kg. The IPCM is an anhydrous inorganic salt or compound that absorbs heat by a phase change from one solid phase to a second solid phase or to a liquid phase. A battery-package is formed that includes the battery protection system on or within the battery-can. The battery-package can have the IPCM within a composite, and the composite can include a thermally conductive filler. The battery protection system can have a series of heat absorbing IPCMs that absorb heat at a series of ascending temperatures.

Abstract: A high surface area to mass catalyst is formed by a method that includes a Kirigami mapped cutting of a flat three metal laminate composite formed on a deposition support. Kirigami derived catalyst has a shape that provides a high surface to mass ratio and promotes the flow of a fluid containing a reagent for a reaction catalyzed by the exterior metal catalyst films of the three metal laminate composite. Structural integrity of the Kirigami derived catalyst results from a support metal film residing between two metal catalyst films. The shaping to the Kirigami derived structure involves cutting the flat three metal laminate composite to that of a Kirigami map, imposing stress on the cut structure to force a non-planar deformation, and delaminating the Kirigami derived catalyst from the deposition support.

Abstract: A battery management system includes one or more processors, a battery comprising a plurality of cells, an output device, an input device, and a memory having an input module, a battery characteristic prediction module, and an output module. The input module includes instructions that cause the one or more processors to receive a mode selection from a user via the input device. The battery characteristic prediction module includes instructions that cause the one or more processors to predict a characteristic of the battery based on the mode selection using an active machine learning model to predict the characteristic of the battery. The output module includes instructions that cause the one or more processors to output an estimated cost to the output device based on the characteristic of the battery determined by the active machine learning model.

Abstract: Motor vehicles use biomagnetic sensors to determine global position by detecting Earth's geomagnetic field. Magnetosensitive bioparticles, such as magnetotactic bacteria or organelles from a magnetoreceptive eukaryotic species, are dispersed in a gel medium. The magnetosensitive bioparticles generate a local magnetic moment that changes in response to fluctuations in the immediate geomagnetic field vector, the latter of which is dependent on global position. An integrated circuit, such as an array of superconducting quantum detects changes in the local magnetic moment, and a controller thereby determines the ambient geomagnetic field vector. The controller accesses a database having a correlation of geomagnetic field vector and geolocation.

Abstract: 2-manifold structures are structures having continuously curvilinear surfaces, with no kinks or sharp angles. Methods for building strong, lightweight 2-manifold structures include a computer implemented strength optimization process. The computer implemented process includes a structure optimization sub-routine in which a plurality of rod-like members, constituting an irregular scaffold, is constrained into a volume corresponding to the 2-manifold structure. The strength of the irregular scaffold is then optimized by application of an algorithm that maximizes strength as a function of variations in the ratio of the largest macroscopic dimension of the panel to the average length of the members; the aspect ratio of the members (diameter divided by length); the average or maximum number of times a member can contact another member; and the distribution of member lengths. Strength maximization can be simultaneous to minimization of total length of the members.