Diagnostic system for internal combustion engine cooling system, processes measurement values for air quantity and vehicle speed over known period, instantaneous engine temperature

摘要

The system has at least one measurement device (7) for the air quantity passing through it, a measurement device (4) for the speed of the vehicle, a measurement device (6) for the engine (1) temperature and at least one processing unit (3) for processing the measurement values for air quantity and vehicle speed over a known period and an instantaneous value for the engine temperature. AN Independent claim is also included for the following: a diagnostic method for a vehicle cooling system.