Abstract: A method for designing an accelerated battery aging testing protocol from battery electric vehicle usage data is provided. An initial search space database is created based on a collection of vehicle usage data. The usage data includes current demand over a first timeframe. Data compression is performed including classifying the database into specific segments representing use events. A synthetic profile is generated including a sequence of elements having a battery current and a battery state of charge (SOC) for selected segments of the specific segments. An optimization for accelerated aging of the battery is defined. A genetic algorithm (GA) is executed that generates the accelerated battery aging testing protocol requiring a second timeframe, shorter than the first timeframe, based on the optimization.

Abstract: A system for issue prediction based on multidimensional data analysis includes a model generator that receives a resolved data item relating to a service issue. The resolved data item includes different attributes corresponding to multiple data dimensions and adjusts a population of attributes based on a statistical data model and a deep learning data model operating independent of each other. The statistical data model operates on the attributes for providing a predictive feature and the deep learning data model operates on the attributes for providing a predictive label based on performance metrics related to the data dimensions. The predictive feature and the predictive label collectively define training data. The model generator also trains a classification model based on the training data for predicting a potential issue related to an unresolved data item. The trained data model provides a trigger based on the potential issue being related to the performance metrics.

Abstract: A system for issue prediction based on multidimensional data analysis includes a model generator that receives a resolved data item relating to a service issue. The resolved data item includes different attributes corresponding to multiple data dimensions and adjusts a population of attributes based on a statistical data model and a deep learning data model operating independent of each other. The statistical data model operates on the attributes for providing a predictive feature and the deep learning data model operates on the attributes for providing a predictive label based on performance metrics related to the data dimensions. The predictive feature and the predictive label collectively define training data. The model generator also trains a classification model based on the training data for predicting a potential issue related to an unresolved data item. The trained data model provides a trigger based on the potential issue being related to the performance metrics.