AUTOMOTIVE ELECTRIFIED DRIVE TRAIN SYSTEMS WITH HIGH TEMPERATURE RECHARGEABLE ENERGY STORAGE DEVICE
A propulsion energy storage system for a hybrid vehicle includes ultracapacitor based energy storage to provide rechargeable energy storage. The rechargeable energy storage used performs well over a wide thermal range and thus permits vehicle designers and manufacturers to forego incorporation of temperature management systems. Further, as the rechargeable energy storage exhibit excellent thermal stability, the form factor of the cells of the rechargeable energy storage (e.g., ultracapacitors) may be adjusted to meet the desires of designers, manufacturers and users.
1 . A rechargeable energy storage (RES) for a vehicle, the RES comprising:
at least one ultracapacitor adapted for operating at an ambient temperature up to about ninety degrees Celsius, wherein the RES comprises a form factor for making economic use of space within the vehicle.
2 . The RES of claim 1 , wherein the ultracapacitor comprises a carbonaceous material as an energy storage media.
3 . The RES of claim 2 , wherein the carbonaceous material comprises vertically aligned carbon nanotubes.
4 . The RES of claim 1 , wherein the ultracapacitor exhibits a capacitance decrease of less than about fifty percent over 2,500 cycles, while operating a maximum voltage.
5 . The RES of claim 1 , wherein the form factor is adapted for replacing insulation of the vehicle with the RES.
6 . The RES of claim 1 , comprising a volume of less than about 0.5 cubic meters, while providing at least 10 kW of power at about ninety percent efficiency with a storage capacity of at least 100 Wh of energy.
7 . A method of fabricating a rechargeable energy storage (RES) for a vehicle, the method comprising:
selecting a plurality of ultracapacitors adapted for operating at an ambient temperature up to about ninety degrees Celsius;
electrically coupling the ultracapacitors together; and
disposing the coupled ultracapacitors into a housing.
8 . The method of claim 7 , wherein the coupling is at least one of a series coupling and a parallel coupling.
9 . The method of claim 7 , further comprising electrically coupling the RES to a controller for controlling at least one of charging and discharging of the ultracapacitors.
10 . An energy power system for a hybrid vehicle, the system comprising:
a rechargeable energy storage (RES) comprising at least one ultracapacitor adapted for operating at an ambient temperature up to about ninety degrees Celsius as a first energy storage;
a second energy storage comprising a battery; and
a controller for controlling at least one of charging and discharging of the first and the second energy storage.
11 . The system of claim 10 , wherein the controller comprises at least one of a processor, a memory, a data storage, a sensor, a switch, a gate, an interface and machine readable instructions stored on machine readable media for the controlling.
12 . The system of claim 11 , wherein the controller is configured to draw upon at least one of the first energy storage and the second energy storage according to demand of a load.
13 . The system of claim 11 , wherein the controller is configured to charge at least one of the first energy storage and the second energy storage according to a state of charge and a rate of charge.
14 . The system of claim 11 , wherein the first energy storage is stored in dead space of the vehicle.
15 . The system of claim 11 , wherein at least the first energy storage is configured for operation without a thermal management system.
16 . A method for providing power in a hybrid vehicle, the method comprising:
sensing a load demand for a high pulse of power;
decoupling a battery from the electrical bus; and
serving the demand by drawing power from a rechargeable energy storage (RES) comprising at least one ultracapacitor adapted for operating at an ambient temperature up to about ninety degrees Celsius; and
providing the power to the load.
17 . The method of claim 16 , wherein the load comprises one of a component of the vehicle and an external load coupled to the electrical bus.
18 . A method for equipping a hybrid vehicle with an energy power system, the method comprising:
selecting a rechargeable energy storage (RES) comprising at least one ultracapacitor adapted for operating at an ambient temperature up to about ninety degrees Celsius as a first energy storage;
selecting a controller for controlling at least one of charging and discharging of the first energy storage and a battery of the vehicle;
incorporating the RES and the controller into the vehicle; and
coupling the RES and the controller to an electrical system of the vehicle.
19 . The method of claim 18 , further comprising coupling the controller to a battery of the vehicle.
20 . The method of claim 18 , wherein incorporating the RES comprises placing the at least one ultracapacitor into a dead space of the vehicle.
21 . The method of claim 18 , wherein selecting the RES comprises selecting an RES with an operational rating for servicing pulse power requirements of the vehicle.
22 . The method of claim 18 , wherein incorporating the RES comprises placing the at least one ultracapacitor into a harsh environment on-board the vehicle.