Method for calculating a management setpoint for the comsumption of fuel and electric current by a hybrid motor vehicle

A method of calculating a management setpoint for fuel consumption and of electric current by a hybrid motor vehicle comprising at least one electric motor supplied with electric current by a traction battery, and an internal combustion engine supplied with fuel,

• the method comprising:
• a) acquiring, by a navigation system, a journey to be made,
• b) dividing said journey into successive sections,
• c) acquiring, for each section, attributes characterizing said section,
• d) acquiring, for each of said sections and the attributes, a relationship linking the fuel consumption of the hybrid motor vehicle in the section to electrical energy consumption,
• e) determining an optimal consumption point in each of the relationships acquired,
• f) creating an energy management setpoint throughout the journey, based on coordinates of said optimal points, and
• g) operating the at least one electric motor and the internal combustion engine according to the energy management setpoint,
• wherein, in c), a first of said attributes acquired relates to whether or not use of the internal combustion engine is authorized in said section,
• wherein, in e), the determining includes determining the optimal consumption points so as to:
• maximize a discharge of the traction battery in the sections for which the first attribute indicates that use of the internal combustion engine is not authorized,
• minimize the fuel consumption of the hybrid motor vehicle over all of the journey, and
• maximize the discharge of the traction battery at an end of said journey,
• wherein, in e), the determining includes determining the optimal consumption points by penalizing the points of the relationships which correspond to a non-zero fuel consumption on the sections for which the first attribute indicates that use of the internal combustion engine is not authorized by a heuristic optimization algorithm, and the heuristic optimization algorithm includes minimizing a function which is a sum of a cost function to reach the section considered and a heuristic function evaluating the remaining cost to go from the section considered to the end of the journey, in order to penalize the points of the relationship which correspond to a non-zero fuel consumption on the sections for which the first attribute indicates that use of the internal combustion engine is not authorized, the calculation of the heuristic function is performed differently on the sections for which the first attribute indicates that use of the internal combustion engine is not authorized and on the other sections.