Parameterization of an electric vehicle's energy consumption

A computer-implemented method, comprising:

• parameterizing, by a system operatively coupled to a processor, an amount of energy expended by a vehicle in operation based on a two-point approximation model that comprises a transient phase that captures respective first behaviors of auxiliary subsystems of the vehicle from respective startup states of the auxiliary subsystems until respective steady states of the auxiliary subsystems, and a steady state operating phase that captures respective second behaviors of the auxiliary subsystems associated with the respective steady states of the auxiliary subsystems;
• and
• predicting, by the system, using the parameterizations of the amount of energy expended by the vehicle in operation, a remaining battery charge level of the vehicle at a defined future time.

A computer program product comprising a non-transitory computer readable medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• parameterize an amount of energy expended by a vehicle in operation based on a two-point approximation model that comprises a transient phase that captures respective first behaviors of auxiliary subsystems of the vehicle from respective startup states of the auxiliary subsystems until respective steady states of the auxiliary subsystems, and a steady state operating phase that captures respective second behaviors of the auxiliary subsystems associated with the respective steady states of the auxiliary subsystems;
• and
• predict, using the parameterizations of the amount of energy expended by the vehicle in operation, a remaining battery charge level of the vehicle at a defined future time.