Electronic throttle control device in V-type internal combustion engine for vehicle

• US 20080078355A1
• Filed: 09/26/2007
• Published: 04/03/2008
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Maehara, Hayato, Tsukui, Takaaki, Hotta, Kazuhito, Urabe, Masanobu
• Granted Patent: US 8,020,531 B2
• Time in Patent Office: Days
• US Class Current: 123/399
• CPC Class Codes: F02D 11/10 of the electric type
• CPC Class Codes: F02D 9/107 Manufacturing or mounting details
• CPC Class Codes: F02D 9/1095 Rotating on a common axis, e.g. having a common shaft
• CPC Class Codes: F02M 35/10032 specially shaped or arranged connecting duct between carburettor or air inlet duct and the plenum chamber; specially positioned carburettors or throttle bodies with respect to the plenum chamber
• CPC Class Codes: F02M 35/10111 Substantially V-, C- or U-shaped ducts in direction of the flow path
• CPC Class Codes: F02M 35/10216 Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
• CPC Class Codes: F02M 35/10255 Arrangements of valves; Multi-way valves F02M35/10032 takes precedence; valves in the plenum chamber F02M35/10065; check valves F02M35/10275
• CPC Class Codes: F02M 35/116 for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft

Abstract

An electronic throttle control device in a internal combustion engine for a vehicle can be improved in maintainability and can be reduced in size. An electronic throttle control device in a V-type internal combustion engine for a vehicle has a fuel injection valve and throttle valves in an intake passage. A throttle driving motor controls the opening angle of each throttle valve according to the amount of operation of a throttle grip performed by an operator of the vehicle. The throttle driving motor is located outside a region surrounded by the throttle bodies that are respectively connected to all of intake ports as viewed in plan.

Claims

1. An electronic throttle control device in a V-type internal combustion engine for a vehicle, the V-type internal combustion engine having a fuel injection valve and throttle valves in an intake passage, said electronic throttle control device comprising:

a throttle driving motor for controlling an opening angle of each throttle valve according to an amount of operation of a throttle grip performed by an operator of the vehicle,

wherein said throttle driving motor is located outside a region surrounded by a plurality of throttle bodies that are respectively connected to all intake ports of the engine as viewed in plan.

2. The electronic throttle control device in the V-type internal combustion engine according to claim 1, wherein the fuel injection valves are located inside said region surrounded by the plurality of throttle bodies that are respectively connected to all intake ports as viewed in plan.

3. The electronic throttle control device in the V-type internal combustion engine according to claim 1, wherein said throttle driving motor comprises:

a single throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in a first bank,

wherein said first throttle shaft is connected through a link to a second throttle shaft for supporting at least one of said throttle valves in a second bank.

4. The electronic throttle control device in the V-type internal combustion engine according to claim 1, wherein said throttle driving motor comprises:

a first throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in a first bank; and

a second throttle driving motor connected to a second throttle shaft for supporting at least one of said throttle valves in a second bank.

5. The electronic throttle control device in the V-type internal combustion engine according to claim 1, wherein said throttle driving motor comprises:

a first throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in a first bank; and

a plurality of second throttle driving motors respectively connected to a plurality of second throttle shafts for respectively supporting at least two of said throttle valves in a second bank.

6. The electronic throttle control device in the V-type internal combustion engine according to claim 1, wherein the throttle driving motor includes an output gear mounted thereon and a throttle shaft includes a throttle valve driving gear mounted thereon, the output gear and the throttle driving gear being operatively connected together by an intermediate gear unit.

7. The electronic throttle control device in the V-type internal combustion engine according to claim 6, wherein an axis of the output gear and an axis of the throttle valve driving gear are located on a line that forms an angle of approximately 70°

with a center line of one of the plurality of throttle bodies.

8. An electronic throttle control device in a V-type internal combustion engine, comprising:

a plurality of first throttle bodies in a first bank of throttle bodies, each of the plurality of first throttle bodies having a throttle valve and a fuel injection valve mounted therein;

a plurality of second throttle bodies in a second bank of throttle bodies, each of the plurality of second throttle bodies having a throttle valve and a fuel injection valve mounted therein;

a throttle driving motor for controlling an opening angle of each throttle valve according to an amount of operation of a throttle grip performed by an operator of the vehicle,

wherein said plurality of first and second throttle bodies form a region surrounded by an outer circumference of said first and second throttle bodies, and said throttle driving motor is located outside of said region as viewed in plan.

9. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein the fuel injection valves are located inside said region as viewed in plan.

10. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein said throttle driving motor comprises:

a single throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in said first bank,

wherein said first throttle shaft is connected through a link to a second throttle shaft for supporting at least one of said throttle valves in said second bank.

11. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein said throttle driving motor comprises:

a first throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in said first bank; and

a second throttle driving motor connected to a second throttle shaft for supporting at least one of said throttle valves in said second bank.

12. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein said throttle driving motor comprises:

a first throttle driving motor connected to a first throttle shaft for supporting at least one of said throttle valves in said first bank; and

a plurality of second throttle driving motors respectively connected to a plurality of second throttle shafts for respectively supporting at least two of said throttle valves in said second bank.

13. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein the throttle driving motor includes an output gear mounted thereon and a throttle shaft includes a throttle valve driving gear mounted thereon, the output gear and the throttle driving gear being operatively connected together by an intermediate gear unit.

14. The electronic throttle control device in the V-type internal combustion engine according to claim 13, wherein an axis of the output gear and an axis of the throttle valve driving gear are located on a line that forms an angle of approximately 70°

with a center line of one of the plurality of first and second throttle bodies.

15. The electronic throttle control device in the V-type internal combustion engine according to claim 8, wherein there are four of said first and second plurality of throttle bodies, and said region is a generally polygonal shaped region formed by the outer circumference of the four throttle bodies, and wherein said throttle driving motor is located outside of said polygonal shaped region as viewed in plan.