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US 12,007,284 B2Granted
Method and system for determining data characterizing at least one change in the temperature of a component of a motor vehicle during a time interval
AssigneePsa Automobiles SA
InventorsZe Cellier, Papa Medoune Ndiaye
Life of this patent
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Abstract
The invention relates to a method for determining data characterizing at least one change in the temperature of a motor vehicle component during a time interval, using a computer system, and to a system (100) using such a method.
Claims10
A method for determining, by a computer system, data characterizing at least one change in temperature of a component of a motor vehicle during a time interval, wherein the method comprises the steps of:
- i) acquiring data characterizing a probability of performing a vehicle usage sequence, the usage sequence comprising multiple segments;
- ii) acquiring data characterizing a duration or a distance and a stabilized temperature with regard to at least one of the segments of the vehicle usage sequence;
- iii) acquiring data characterizing a thermal inertia value with regard to the at least one of the segments;
- iv) acquiring data characterizing a number of usage sequences that can be performed by a driver, including data on a longevity of the motor vehicle;
- v) acquiring data characterizing a value representing a range of the vehicle;
- vi) determining data characterizing an estimate of the number of usage sequences performed and a probable longevity as a function of the data on the longevity;
- vii) determining data characterizing a particular vehicle usage sequence as a function of the data characterizing the probability of performing the vehicle usage sequence and the probable longevity;
- viii) determining data characterizing a duration for each of the segments of the particular vehicle usage sequence;
- ix) determining data characterizing a stabilized temperature value for each of the segments of the particular vehicle usage sequence;
- x) determining data characterizing a one-time value of the temperature of the component during a current segment of the particular vehicle usage sequence as a function of:
- (1) data characterizing the stabilized temperature during the segment of the particular vehicle usage sequence that precedes the current segment of the particular vehicle usage sequence,
- (2) data characterizing a difference between (i) the stabilized temperature value during the current segment of the particular usage sequence of the vehicle and (ii) the stabilized temperature value during a segment of the particular vehicle usage sequence that precedes the current segment of the particular vehicle usage sequence, and
- (3) data characterizing the ratio between (i) the duration elapsed since the start of the current segment of the particular vehicle usage sequence and (ii) a thermal inertia value for the current segment determined from the data characterizing the thermal inertia value with regard to at least one of the segments;
- and
- xi) determining the data characterizing at least one change in temperature of the component of the motor vehicle using the data characterizing the one-time value of the temperature of the component during the current segment of the particular vehicle usage sequence.
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Dependencies are inferred from the claim text.