MONITORING THE USE OF A FREEWHEELING OPERATING MODE OF AN ELECTRIC POWERTRAIN OF A LAND VEHICLE

Abstract

A monitoring method is implemented in a land vehicle and includes an electric power unit, associated with a set of drive wheels, designed to be powered by a rechargeable main battery and to supply the latter with charging current, and having an activatable freewheeling mode. This method includes a step (10-50) in which, when the freewheeling mode is activated while the main battery cannot be recharged, the power unit undergoes an active discharge to remove the electric current it produces. Figure 3

Claims

to implement the monitoring method according to any one of claims 1 to 7, in a land vehicle (V) comprising an electric motive machine (MME), associated with a train (Tl) of drive wheels, suitable for being supplied with electric current by a rechargeable main battery (BP) and for supplying the latter (BP) with electric charging current, and having an activatable free-wheeling mode of operation, to monitor the use of this free-wheeling mode of operation.

9. A monitoring device (DS) for a land vehicle (V) comprising an electric drive machine (MDM), associated with a set (Tl) of drive wheels, suitable for being supplied with electric current by a rechargeable main battery (BP) and for supplying the latter (BP) with electric charging current, and having an activatable free-wheeling mode of operation, characterized in that it comprises at least one processor (PR1) and at least one memory (MD) arranged to perform the operations consisting, when said free-wheeling mode of operation is activated while said main battery (BP) cannot be recharged, of triggering an active discharge of said drive machine (MDM) to evacuate an electric current that it produces.

10. Land vehicle (V) comprising an electric drive machine (MME), associated with a drive wheel train (Tl), suitable for being supplied with electric current by a rechargeable main battery (BP) and for supplying the latter (BP) with charging electric current, and having an activatable freewheeling mode of operation, characterized in that it further comprises a monitoring device (DS) according to claim 9. [Fig. 1]

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