Hybrid energy power management system and method

摘要

An energy management system is provided for use with a hybrid energy off-highway vehicle traveling on a predetermined course. The energy management system includes an energy management processor to determine a power storage parameter, a power transfer parameter, and an engine transfer parameter for each location along the predetermined course to minimize the total fuel consumed of all fuel types during the predetermined course subject to at least one fuel parameter constraint. An energy storage system selectively stores electrical energy available from the traction bus as a function of the power storage parameter and selectively supplies secondary electric power from the stored electrical energy to the traction bus as a function of the power transfer parameter. The engine selectively supplies primary electric power to the traction bus at each location along said predetermined course through selectively using at least one fuel type in response to said engine transfer parameter.

主权项

1. A system comprising:
a processor configured to monitor fuel efficiencies of an engine system of a vehicle when the engine system consumes plural different fuels to propel the vehicle, the processor also configured to monitor volumes of the fuels as the vehicle moves along a route, wherein the fuels include a first fuel and a second fuel, and the processor is configured to determine whether the volume of the first fuel is sufficient to power the vehicle to travel to a first upcoming refueling location where the vehicle can acquire more of the first fuel, and to determine whether the volume of the second fuel is sufficient to power the vehicle to travel to a second upcoming refueling location where the vehicle can acquire more of the second fuel, and wherein the processor is configured to direct the engine system to switch which of the first fuel and the second fuel is consumed by the engine system to propel the vehicle based on the fuel efficiencies of the engine system that are monitored, based on whether the vehicle can reach the first upcoming refueling location, and based on whether the vehicle can reach the second upcoming refueling location.