METHOD FOR ESTIMATING THE INITIAL TEMPERATURE OF A MECHANICAL MEMBER OF A VEHICLE AT THE START-UP OF THE VEHICLE

摘要

The invention relates to a system for estimating the temperature of a mechanical member (4) of a vehicle (1) once the vehicle has been stopped, which includes: a temperature sensor (11) of a first element (10) of the vehicle (1), which can, in particular, be a fluid tank of the vehicle; means (19) for estimating the air temperature outside the vehicle; and a first module (23) for estimating the temperature of the member (4) when the vehicle is in motion. The system also includes: means (22) for storing, while the vehicle (1) is stopped, an outside air temperature value, a temperature value of the first element (10) and a temperature value of the member (4); a second module (20) suitable for calculating how long the vehicle has been stopped (1) according to an outside air temperature value, a stored temperature of the first element (10) and a measured temperature of the first element (10); and a third module (21) suitable for calculating a thermal history of temperature variation of the member (4) while the vehicle is stopped (1), according to an outside air temperature value, a stored temperature of the member (4) and a stoppage time of the vehicle calculated by the second module (20).