WE CLAIM:
1. An energy management system (500') for use with a hybrid energy
vehicle (103') traveling on a predetermined course, said vehicle (103') including an
engine (102') operating on a plurality of fuel types within at least one fuel tank
(105', 107'), a power converter (104', 106') driven by the engine (102') providing
primary electric power, a traction bus (122) coupled to the power converter (104',
106') and carrying the primary electric power, a traction drive (106') connected to
the traction bus (122), the energy management system (500') comprising:
an energy management processor (506') determining an engine transfer parameter for each location along said predetermined course for minimizing the total fuel consumed of each fuel type during the predetermined course subject to at least one fuel parameter constraint, and the energy management processor (506') also configured to monitor volumes of the plurality of fuel types within at least one fuel tank (105', 107') as the vehicle (103') moves along said predetermined course;
the engine (102') being responsive to said engine management processor (506') for selectively supplying said primary electric power to the traction bus (122) at each location along said predetermined course through selectively using at least one of said plurality of fuel types in response to said engine transfer parameter,
wherein each engine transfer parameter for each of said plurality of fuel types at each location along said predetermined course is based upon the respective volume of each fuel type in said respective fuel tank (105', 107').
2. The energy management system (500') for use with a hybrid energy
vehicle (103') traveling on a predetermined course as claimed in claim 1, wherein
said traction drive (106') has a motoring mode in which the traction drive (106') is
responsive to the primary electric power for propelling the hybrid energy off-
highway vehicle on said predetermined course, said traction drive (106') has a
dynamic braking mode of operation wherein said traction drive (106') generates
dynamic braking electrical energy, said energy management system (500') further
comprises:
an energy storage system (204') connected to the traction bus (122) and being responsive to the energy management processor (506'), said energy storage

system (204') selectively storing electrical energy available from the traction bus (122) as a function of the power storage parameter and selectively supplying secondary electric power from the stored electrical energy to the traction bus (122) as a function of the power transfer parameter, wherein the traction drive (106') is responsive to the secondary electric power;
wherein said energy management processor (506') further determines a power storage parameter and a power transfer parameter for each location along said predetermined course for minimizing the total fuel consumed of each fuel type during the predetermined course subject to at least one fuel parameter constraint.
3. The energy management system (500') for use with a hybrid energy vehicle (103') traveling on a predetermined course as claimed in claim 2, wherein the vehicle (103') comprises one of an off-highway vehicle, a locomotive and a marine vehicle, and wherein the predetermined course comprises one of a track and a predetermined marine trip.
4. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 3, wherein said plurality of fuel types within at least one fuel tank (105', 107') comprises each of said plurality of fuel types held within a respective fuel tank (105', 107').
5. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 3, wherein said plurality of fuel types comprises at least one fuel type in at least one respective fuel tank (105', 107') and at least one fuel type mix in at least one respective fuel tank (105', 107').
6. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 3, wherein said energy management processor (506') determines said engine transfer parameter and said power transfer parameter at each location along said predetermined course based upon said plurality of fuel types, and wherein said engine transfer parameter selectively identifies at least one fuel type of said plurality of fuel types to supply said engine (102') at each location along said predetermined course.
7. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 6, wherein said energy management processor

(506') determines said engine transfer parameter and said power transfer parameter for each location along said predetermined course based upon at least one fuel parameter for each of said plurality of fuel types at each location along said track.
8. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 7, wherein each fuel parameter for each of said plurality of fuels at each location along said predetermined course is based upon at least one operating characteristic of said locomotive at each location along said predetermined course.
9. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 8, further comprising:
a position determining device (510') providing each location along said predetermined course to said energy management processor (506');
a database (508) including a track situation parameter for each location along said predetermined course, said track situation parameter being indicative of a topographic characteristic of the track; said database further including each fuel parameter for each of said plurality of fuels for pre-stored values of each of said at least one operating characteristic of said locomotive;
wherein said energy management processor (506') retrieves said track situation parameter from said database for each location along said predetermined course, determines at least one operating characteristic of said locomotive at each location based upon said track situation parameter; and wherein said energy management processor (506') retrieves each fuel parameter for said plurality of fuels from said database corresponding to determined said operating characteristic of said locomotive at each location.
10. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 8, wherein said at least one operating characteristic includes the total power demand at each location along said predetermined course to propel the locomotive.
11. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 7, wherein each fuel parameter for each of said

plurality of fuel types at each location along said predetermined course is based upon said location along said predetermined course.
12. The energy management system (500') for use with a hybrid energy
vehicle (103') as claimed in claim 11, further comprising:
a position determining device (510') providing each location along said predetermined course to said energy management processor (506');
a database (508) including at least one fuel parameter restriction for each of said plurality of fuel types for each location along said predetermined course;
wherein said energy management processor (506') retrieves said fuel parameter restriction for each of said plurality of fuel types for each location along said predetermined course.
13. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 12, wherein said fuel parameter restriction is indicative of one of an emission restriction, mileage restriction, and an availability restriction for each of said plurality of fuel types at each location along said predetermined course.
14. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 11, wherein each fuel parameter for each of said plurality of fuel types at each location along said predetermined course is based upon ambient conditions at said location along said predetermined course.
15. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 7, wherein said fuel parameter is fuel efficiency and said fuel parameter constraint includes an emission output constraint over said predetermined course.
16. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 15, wherein said energy management processor (506') selectively determines at least one fuel type of said plurality of fuel types to supply said engine (102') for causing said engine (102') to supply said primary electric power to said traction bus (122) for minimizing said total fuel consumed of each fuel type over said predetermined course.

17. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 3 wherein the energy management processor (506') determines the power storage parameter as a function of a track situation parameter.
18. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in claim 18 further comprising a database supplying the track situation parameter and wherein the track situation parameter is indicative of a topographic characteristic of the track.
19. The energy management system (500') for use with a hybrid energy vehicle (103') as claimed in 19 wherein the topographic characteristic is a track grade, a track curvature, a track elevation, a speed limit associated with the track, or a tunnel associated with the track.
20. A method for energy management for use with a hybrid energy vehicle (103') traveling on a predetermined course, said vehicle (103') including an engine (102') operating on a plurality of fuel types within at least one fuel tank (105', 107'), a power converter (104', 106') driven by the engine (102') providing primary electric power, a traction bus (122) coupled to the power converter (104', 106') and carrying the primary electric power, a traction drive (106') connected to the traction bus (122), the method for energy management comprising:
connecting an energy storage system (204') to the traction bus (122) and an energy management processor (506');
causing said energy management processor (506') to determine a power storage parameter, a power transfer parameter, and an engine transfer parameter for each location along said predetermined course to minimize the total fuel consumed of all fuel types during the predetermined course subject to at least one fuel parameter constraint;
causing said energy management processor (506') to monitor volumes of the plurality of fuel types within at least one fuel tank (105', 107') as the vehicle (103') moves along said predetermined course;

selectively storing electrical energy within said energy storage system (204') available from the traction bus (122) as a function of the power storage parameter;
selectively supplying secondary electric power from the energy storage system (204') to the traction bus (122) as a function of the power transfer parameter; and
selectively supplying said primary electric power from the engine (102') to the traction bus (122) at each location along said predetermined course through selectively using at least one of said plurality of fuel types in response to said engine transfer parameter,
wherein each engine transfer parameter for each of said plurality of fuel types at each location along said predetermined course is based upon the respective volume of each fuel type in said respective fuel tank (105', 107').
21. The method for energy management for use with a hybrid energy vehicle (103') traveling on a predetermined course according to claim 20, wherein the vehicle comprises one of an off-highway vehicle, a locomotive and a marine vehicle, and wherein the predetermined course comprises one of a track and a predetermined marine trip.