Method and system for managing the heat treatment of at least one element of an electric drive train of an electric or hybrid motor vehicle

1 . A method for managing heat treatment of at least one element of an electric drive train of an electric or hybrid vehicle equipped with at least one electric battery module and at least one heat treatment system of at least one of the elements of the electric drive train, the method comprising:

detecting an activation, manual or automatic, of an intensive use of the vehicle currently being executed or planned, the intensive use being a use of the vehicle during driving that requires performance of the vehicle that exceeds a normal use over a specific period of time; and

when the intensive use is detected:

determining at least one temperature of the at least one element of the electric drive train and comparing the at least one temperature with at least one target optimal operating temperature specific to the at least one element of the electric drive train so as to detect a deviation relative to the at least one target temperature; and

heat treating the at least one element of the electric drive train when the deviation is detected relative to the at least one target temperature specific to the at least one element of the drive train.

2 . The management method as claimed in claim 1 , wherein electric drive train comprises an electric motor and the at least one electric battery module.

3 . The management method as claimed in claim 1 , wherein the determining includes measuring the at least one temperature.

4 . The management method as claimed in claim 1 , further comprising:

determining an initial state of charge of the at least one battery module; and

stopping the management method prior to the heat treating when the determined initial state of charge of the at least one battery module is less than a predetermined threshold.

5 . The management method as claimed in claim 4 , further comprising:

calculating an electrical energy consumption of the electric battery module required for the heat treatment of the at least one element so as to correct the detected deviation specific to the at least one element of the drive train;

estimating a provisional final state of charge of the at least one battery module as a function of the initial state of charge and the calculated electrical energy consumption; and

stopping the management method prior to the heat treating when the calculated provisional state of charge is less than a predetermined threshold.

6 . The management method as claimed in claim 1 , further comprising, prior to the heat treating the at least one element of the drive train, determining an availability of power of the at least one battery module that can be allocated to the at least one heat treatment system, the availability of power being determined as a function of at least one parameter internal to the vehicle and/or as a function of at least one parameter external to the vehicle, the management method being stopped prior to the execution of the heat treating when the availability of power of the at least one battery module is less than a predetermined threshold.

7 . The management method as claimed in claim 1 , further comprising monitoring, at the same time as and/or subsequent to the heat treating, the use of the vehicle, the management method being stopped when no intensive use, currently being executed or planned, is detected.

8 . The management method as claimed in claim 1 , wherein the management method is stopped when the detected temperature deviation is less than 2° C.

9 . The management method as claimed in claim 1 , further comprising, when a deviation relative to the at least one target temperature is detected, estimating a provisional time necessary for the at least one heat treatment system to correct such a deviation.

10 . The management method as claimed in claim 1 , wherein the detecting an activation of the intensive use, currently being executed or planned, of the vehicle comprises at least one out of:

detecting a journey and/or a location specific to a current or planned intensive use via a location means of the vehicle or a connected device;

detecting at least one running parameter of the vehicle by a sensor;

selecting or programming an intensive driving mode preprogrammed in the vehicle by a user via a human-machine interface embedded in the vehicle and/or via a connected device;

programming, by the user, the subsequent execution of the planned intensive use of the vehicle via a human-machine interface embedded in the vehicle and/or via a connected device; and

identifying a driver and/or of a driver profile, stored in a memory unit of the vehicle, associated with an intensive driving profile.

11 . The management method as claimed in claim 10 , wherein the at least one running parameter is a longitudinal speed, a stressing of a pedal, a variation of angle of a steering wheel, or a transverse acceleration characteristic of the current intensive use.

12 . A hybrid or electric motor vehicle comprising:

at least one electric battery module configured to power at least one element of an electric drive train of the vehicle and at least one heat treatment system of said at least one element; and

a management system comprising circuitry configured to:

detect an activation, manual or automatic, of an intensive use of the hybrid or electric motor vehicle currently being executed or planned, the intensive use being a use of the vehicle during driving that requires performance of the vehicle that exceeds a normal use over a specific period of time; and

when the intensive use is detected:

determining at least one temperature of the at least one element of the electric drive train and comparing the at least one temperature with at least one target optimal operating temperature specific to the at least one element of the electric drive train so as to detect a deviation relative to the at least one target temperature; and

heat treating the at least one element of the electric drive train when the deviation is detected relative to the at least one target temperature specific to the at least one element of the drive train.

13 . A non-transitory computer readable medium storing a program that, when executed by a computer, causes the computer to execute:

detecting an activation, manual or automatic, of an intensive use of a hybrid or electric motor vehicle currently being executed or planned, the vehicle including an electric drive train including at least one electric battery module and at least one heat treatment system, and the intensive use being a use of the vehicle during driving that requires performance of the vehicle that exceeds a normal use over a specific period of time; and

when the intensive use is detected:

determining at least one temperature of at least one element of the electric drive train and comparing the at least one temperature with at least one target optimal operating temperature specific to the at least one element of the electric drive train so as to detect a deviation relative to the at least one target temperature; and

heat treating the at least one element of the electric drive train when the deviation is detected relative to the at least one target temperature specific to the at least one element of the drive train.