Electric boost compressor and turbine generator system

• US 20070151241A1
• Filed: 12/29/2005
• Published: 07/05/2007
• Est. Priority Date: 12/29/2005
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell (Honeywell International Inc.)
• Inventors: Arnold, Steven
• Granted Patent: US 7,958,727 B2
• Time in Patent Office: Days
• US Class Current: 60/605.100
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 1/20 Energy regeneration from auxiliary equipment
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2270/142 acoustic
• CPC Class Codes: B60L 2270/145 Structure borne vibrations
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: F01N 5/04 the devices using kinetic energy
• CPC Class Codes: F02B 33/36 of positive-displacement type
• CPC Class Codes: F02B 37/005 Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
• CPC Class Codes: F02B 37/24 by using pumps or turbines with adjustable guide vanes
• CPC Class Codes: F02B 39/10 electric
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

An exemplary system for an internal combustion engine includes an exhaust turbine operably coupled to a generator, an intake air compressor operably coupled to an electric motor and mechanically decoupled from the exhaust turbine and a controller to direct electricity generated by the generator to one or more members of the group consisting of the electric motor, an additional electric motor, and a power storage. Various other exemplary technologies are also disclosed.

Claims

1. A system for an internal combustion engine comprising:

an exhaust turbine operably coupled to a generator;

an intake air compressor operably coupled to an electric motor and mechanically decoupled from the exhaust turbine; and

a controller to direct electricity generated by the generator to one or more members of the group consisting of the electric motor, an additional electric motor, and a power storage.

2. The system of claim 1 further comprising the additional electric motor and a linkage to link the additional electric motor to a drivetrain drivable by the internal combustion engine.

3. The system of claim 1 wherein the controller comprises a power demand parameter that corresponds to power demand of the internal combustion engine.

4. The system of claim 3 wherein the controller comprises a power demand limit parameter that corresponds to a normally, aspirated power of the internal combustion engine.

5. The system of claim 4 wherein the power demand limit depends at least in part on rpm of the internal combustion engine.

6. The system of claim 4 wherein the controller directs electricity to the electric motor based at least in part on the power demand parameter and the power demand limit parameter.

7. The system of claim 1 wherein the turbine comprises a variable geometry turbine and wherein the controller controls the geometry of the variable geometry turbine.

8. The system of claim 1 wherein the compressor comprises a variable geometry compressor wherein the controller controls the geometry of the variable geometry compressor.

9. The system of claim 1 wherein the compressor comprises more than one compressor stage.

10. The system of claim 1 wherein the controller comprises a processor and memory.

11. The system of claim 10 wherein the controller comprises instructions stored in the memory and executable by the processor.

12. The system of claim 1 wherein the controller comprises control logic to direct electricity to the additional motor at the end of an idle period of the internal combustion engine.

13. The system of claim 1 wherein the controller directs electricity stored in the power storage to one or more members of the group consisting of the electric motor and the additional electric motor.

14. A hybrid vehicle comprising the system of claim 1.

15. A system for a normally aspirated internal combustion engine comprising:

an exhaust turbine operably coupled to a generator; and

a controller to direct electricity generated by the generator to one or more members of the group consisting of an electric motor and a power storage.

16. The system of claim 15 further comprising the electric motor and a linkage to link the electric motor to a drivetrain drivable by the normally aspirated internal combustion engine.

17. The system of claim 15 wherein the turbine comprises a variable geometry turbine and wherein the controller controls the geometry of the variable geometry turbine.

18. A hybrid vehicle comprising the system of claim 15.

19. A system for an internal combustion engine comprising:

a turbocharger that comprises an exhaust turbine mechanically coupled to an intake air compressor;

an additional exhaust turbine, the additional exhaust turbine operably coupled to a generator; and

a controller to direct electricity generated by the generator to one or more members of the group consisting of an electric motor and a power storage.

20. The system of claim 19 further comprising the electric motor and a linkage to link the electric motor to a drivetrain drivable by the internal combustion engine.