Prediction of remaining lifetime for compressed air supply system component

摘要

A device is provided for predicting the remaining lifetime of a component in a compressed air supply system for a vehicle. This device includes a memory unit for a value related to the degradation of the component, at least one first input for a usage quantity which is a measure for the operating time and/or number of operating cycles of the component and/or for the amount of compressed air delivered by the compressed air supply system, at least one second input for at least one state variable which is a measure for at least one vehicle and/or air supply operation condition or environmental condition. It also includes an evaluation unit that is configured to combine the usage quantity and the state variable into a lifetime decrement value that is a measure for the degradation of the component caused by the usage according to the usage quantity, and update the value in the memory unit according to this lifetime decrement value.