Compound shutter system with independent and non-sequential operation

• US 8,561,738 B2
• Filed: 11/30/2010
• Issued: 10/22/2013
• Est. Priority Date: 11/30/2010
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Charnesky, Scott P., Alexander, Paul W., Mankame, Nilesh D., Browne, Alan L.
• Primary Examiner(s): Restifo, Jeffrey J
• Application Number:
  US12/956,895
• Publication Number:
  US 20120132474A1
• Time in Patent Office: 1,057 Days
• Field of Search: 180/68.1, 180/68.3
• US Class Current: 180/68.1
• CPC Class Codes: B60K 11/085 with adjustable shutters or blinds
• CPC Class Codes: Y02T 10/88 Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

A compound shutter system includes a plurality of shutter assemblies. Each of the shutter assemblies has at least one louver operable to selectively open and close the respective shutter assembly. The compound shutter system additionally includes a mechanism operatively connected to each of the plurality of shutter assemblies. The mechanism is also configured to actuate each of the shutter assemblies independently and non-sequentially relative to each other. A vehicle employing the compound shutter system is also disclosed.

Claims

1. A compound shutter system comprising:

a plurality of shutter assemblies disposed apart from each other, each of the shutter assemblies having at least one louver operable to selectively open and close the respective shutter assembly; and

a mechanism having a clutch operatively connected to each of the plurality of shutter assemblies, and a motor operatively connected to the clutch and configured to actuate each of the shutter assemblies independently and non-sequentially relative to each other.

2. The shutter system of claim 1, wherein:

the plurality of shutter assemblies includes a first shutter assembly and a second shutter assembly;

and

the clutch is configured to operate the motor in a first mode of actuating the first shutter assembly and the second shutter assembly, a second mode of actuating the first shutter assembly, and a third mode of actuating the second shutter assembly.

3. The shutter system of claim 2, wherein the clutch employs a shape memory material which is selectively energized to operate the motor in one of the first, the second, and the third mode.

4. The shutter system of claim 2, wherein when the mechanism includes a first drive element configured to operate the first shutter assembly and a second drive element configured to operate the second shutter assembly.

5. The shutter system of claim 4, wherein each of the first drive element and the second drive element is one of a push-pull cable and a torque-type cable.

6. The shutter system of claim 2, further comprising a controller configured to regulate the mechanism.

7. The shutter system of claim 6, wherein the controller regulates the mechanism to control an airstream in a vehicle through a first grille opening and through a second grille opening that is disposed remotely from the first grille opening, such that the first shutter assembly is disposed in the first grille opening and the second shutter assembly is disposed in the second grille opening.

8. The shutter system of claim 7, wherein the vehicle includes an internal combustion engine, and the controller is configured to regulate the mechanism according to a load on the engine.

9. The shutter system of claim 8, wherein the engine is cooled by a fluid circulated through a heat exchanger, and the vehicle includes a sensor adapted to sense a temperature of the fluid and configured to communicate the temperature to the controller.

10. The shutter system of claim 9, wherein the controller is configured to regulate the mechanism to cool the fluid circulated through the heat exchanger according to the sensed temperature of the fluid.

11. A vehicle comprising:

an internal combustion engine cooled by a circulating fluid;

a heat exchanger configured to cool the fluid via an airstream after the fluid cools the engine;

a plurality of grille openings disposed apart from each other, wherein each of the plurality of grille openings is positioned to permit the airstream to pass to the heat exchanger; and

a compound shutter system for controlling an airstream through the plurality of grille openings, the shutter system including;

a plurality of shutter assemblies disposed apart from each other, each of the shutter assemblies having at least one louver operable to selectively open and close the respective shutter assembly; and

a mechanism having a clutch operatively connected to each of the plurality of shutter assemblies, and a motor operatively connected to the clutch and configured to actuate each of the shutter assemblies independently and non-sequentially relative to each other.

12. The vehicle of claim 11, wherein the plurality of grille openings includes a first grille opening and a second grille opening, and wherein the plurality of shutter assemblies includes a first shutter assembly disposed in the first grille opening and a second shutter assembly disposed in the second grille opening.

13. The vehicle of claim 12, wherein the clutch is configured to operate the motor in a first mode of actuating the first shutter assembly and the second shutter assembly, a second mode of actuating the first shutter assembly, and a third mode of actuating the second shutter assembly.

14. The vehicle of claim 13, wherein the clutch employs a shape memory material selectively energized to operate the motor in one of the first, the second, and the third mode.

15. The vehicle of claim 13, wherein when the mechanism includes a first drive element configured to operate the first shutter assembly and a second drive element configured to operate the second shutter assembly.

16. The vehicle of claim 11, wherein each of the first drive element and the second drive element is one of a push-pull cable and a torque-type cable.

17. The vehicle of claim 11, further comprising a controller configured to regulate the mechanism.

18. The vehicle of claim 17, wherein the controller is configured to regulate the mechanism according to a load on the engine.

19. The vehicle of claim 18, wherein the engine is cooled by a fluid circulated through the heat exchanger, and wherein the vehicle includes a sensor which senses a temperature of the fluid and communicates the temperature to the controller.

20. The vehicle of claim 19, wherein the controller is operable for regulating the mechanism to cool the fluid circulated through the heat exchanger according to the sensed temperature of the fluid.