Side-by-side vehicle

Patent metadata

Field	Value
Publication number	US-11660927-B2
Application number	US-202117323597-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Sep 4, 2013
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

A utility vehicle includes a plurality of ground-engaging members, a frame assembly, a cab frame assembly, a front suspension assembly, a rear suspension assembly, a power steering assembly, and a powertrain assembly, all of which may be configured to lower the center of gravity of the vehicle.

First claim

What is claimed is:

1. A utility vehicle, comprising:
a plurality of ground engaging members;
a frame assembly supported by the ground engaging members; and
a powertrain assembly supported by the frame assembly and including:
an engine;
a continuously variable transmission operably coupled to the engine;
an air intake assembly fluidly coupled to the engine; and
an exhaust assembly fluidly coupled to the engine, the exhaust assembly being configured to selectively regulate a flow of exhaust from the engine in response to at least one of a drive mode, an operator input, and a throttle position.

2. The utility vehicle of claim 1 , wherein the exhaust assembly includes a first exhaust body, a second exhaust body, a first passageway, a second passageway, and a valve assembly, the valve assembly being configured to direct exhaust from the engine through one of the first and second passageways in response to at least one of the drive modes, the operator input, and the throttle position.

3. The utility vehicle of claim 2 , wherein the valve assembly is open when the utility vehicle is operating in a high-flow mode, and the valve assembly is at least partially closed when the utility vehicle is operating in a low-flow mode.

4. The utility vehicle of claim 3 , wherein a sound emanating from the exhaust assembly is greater when in the high-flow mode than in the low-flow mode.

5. The utility vehicle of claim 2 , further comprising an engine control unit operably coupled to the engine and the exhaust assembly, wherein the engine control unit is configured to control a position of the valve assembly in response to the throttle position.

6. A utility vehicle, comprising:
a plurality of ground engaging members;
a frame assembly supported by the ground engaging members; and
a powertrain assembly supported by the frame assembly and including:
an engine;
a transmission operably coupled to the engine;
an air intake assembly fluidly coupled to the engine; and
an exhaust assembly fluidly coupled to the engine, the exhaust assembly being configured to selectively regulate a flow of exhaust from the engine in response to at least one of a drive mode, an operator input, and a throttle position, wherein the exhaust assembly includes a first exhaust body, a second exhaust body, a first passageway, a second passageway, and a valve assembly, the valve assembly being configured to direct exhaust from the engine through one of the first and second passageways in response to at least one of the drive modes, the operator input, and the throttle position.

7. The utility vehicle of claim 6 , wherein the valve assembly is open when the utility vehicle is operating in a high-flow mode, and the valve assembly is at least partially closed when the utility vehicle is operating in a low-flow mode.

8. The utility vehicle of claim 7 , wherein a sound emanating from the exhaust assembly is greater when in the high-flow mode than in the low-flow mode.

9. The utility vehicle of claim 6 , further comprising an engine control unit operably coupled to the engine and the exhaust assembly, wherein the engine control unit is configured to control a position of the valve assembly in response to the throttle position.

10. A utility vehicle, comprising:
a plurality of ground engaging members;
a frame assembly supported by the ground engaging members; and
a powertrain assembly supported by the frame assembly and including:
an engine;
a transmission operably coupled to the engine;
an air intake assembly fluidly coupled to the engine; and
an exhaust assembly fluidly coupled to the engine, the exhaust assembly being configured to selectively regulate a flow of exhaust from the engine in response to at least one of a drive mode and an operator input.

11. The utility vehicle of claim 10 , wherein the exhaust assembly includes a first exhaust body, a second exhaust body, a first passageway, a second passageway, and a valve assembly, the valve assembly being configured to direct exhaust from the engine through one of the first and second passageways in response to at least one of the drive modes, the operator input, and the throttle position.

12. The utility vehicle of claim 11 , wherein the valve assembly is open when the utility vehicle is operating in a high-flow mode, and the valve assembly is at least partially closed when the utility vehicle is operating in a low-flow mode.

13. The utility vehicle of claim 12 , wherein a sound emanating from the exhaust assembly is greater when in the high-flow mode than in the low-flow mode.

14. The utility vehicle of claim 11 , further comprising an engine control unit operably coupled to the engine and the exhaust assembly, wherein the engine control unit is configured to control a position of the valve assembly in response to the throttle position.

15. The utility vehicle of claim 14 , further comprising:
a body coupled to the frame, the body having a forward-most portion;
a rear suspension assembly operably coupled to the rear ground engaging members, wherein the forward-most portion of the front ground engaging members is forward of the forward most portion of the body.

Assignees

• Polaris Inc

Inventors

• Hollman Keith A
• Komarek Anthony J
• Deckard Aaron D
• Peterson Shawn D
• Goffman Daniel L

Classifications

• B60K13/02

  concerning intake · CPC title

• B60Y2200/20

  Off-Road Vehicles · CPC title

• B62D3/12

  of rack-and-pinion type · CPC title

• B60G2200/44

  steerable · CPC title

• B60K2005/003

  the internal combustion or jet propulsion unit is arranged between the front and the rear axle · CPC title