US Patent 12061971 Predictive maintenance of automotive engines

Systems, methods and apparatus of predictive maintenance of automotive engines. For example, a vehicle has an engine, at least one microphone directed to the engine to sense audio signals including sound emitting from the engine, an artificial neural network configured to analyze the audio signals to generate a result, and at least one processor configured to generate a suggestion for a maintenance service of the engine based on the result from the artificial neural network analyzing the audio signals.