Method and system for managing the power of a hybrid vehicle

摘要

The invention relates to a method for managing the power of a hybrid vehicle selectively driven by an electric motor and a heat engine, the electric motor being supplied with power by a power storage unit capable of being recharged by the heat engine, wherein according to the method the level of charge of the power storage unit is monitored so as to select the mode in which the vehicle is driven by the heat engine or that in which the vehicle is driven by the electric motor, said method including the steps of: determining a travelling profile of the vehicle associated with a path of said vehicle; and determining (36), according to said travelling profile, a threshold level of charged (S2), referred to as authorized threshold, below which the mode in which the vehicle is driven by the heat engine is activated.

主权项

1. A power management method for a hybrid vehicle selectively driven by an electric motor and by a heat engine,
the electric motor being supplied with power by a unit for storing electrical power able to be recharged by the heat engine, wherein a charge level of the power storage unit is monitored in order to select a heat engine or electric motor drive mode, the power management method comprising:
inputting a route profile into a central ECU;evaluating a route profile for the hybrid vehicle associated with a trip of the hybrid vehicle, wherein evaluating the rout profile comprises:
evaluating a trip distance, a trip time, and a nature of the trip, between a specified point and a specified endpoint; andsetting, depending on the route profile, a threshold charge level, called an authorized threshold, below which a heat engine drive mode is activated,wherein the nature of the trip is evaluated from an average speed of the trip, the average speed being obtained from the trip distance and the trip time,wherein the nature of the trip is chosen from at least one trip comprising an extra urban portion and one trip not comprising an extra urban portion,wherein if the average speed of the trip is higher than an average speed threshold, the trip comprises an extra urban portion, andwherein if the average speed is lower than the average speed threshold, the trip does not comprise an extra urban portion.