JP2002202034A - Electric equipment arranging structure of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange electric equipment such as a fuel injection control unit 76 for controlling fuel injection in an intake air box 36 in the vicinity of a lid 78 by blocking up an upper surface of the intake air box 36 by the lid 78. SOLUTION: Maintenance of the electric equipment such as the control unit arranged in the intake air box and controlling the fuel injection, can be easily performed by removing the lid of the intake air box so that maintenance time can be shortened. Since the electric equipment exists in the intake air box, the electric equipment can be prevented from being exposed to muddy water and rainwater.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle electric component arrangement structure suitable for improving the maintainability of the electric components and preventing the electric components from being exposed to rainwater or muddy water.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 7-332208 discloses an arrangement of electric components of a motorcycle such as an electric fuel injection valve for supplying fuel to an engine and a control unit for controlling the fuel injection valve. Japanese Patent Application Laid-Open Publication No. 2000-97132, JP-A-2000-97132, entitled "Fuel Piping Structure", is known.

In FIG. 1 of the above publication, an air cleaner 4 is disposed below a fuel tank 20, an intake passage 6 is connected to the air cleaner 4, and the intake passage 6 is attached to an engine 8, and an intake passage is provided. A fuel injection device in which an injector 10 is attached to a portion 6 and an injector 12 is disposed toward an opening of an intake passage 6 in an air cleaner 4 is described.

In FIG. 2 of the above publication, an air cleaner 5 is mounted on the upstream side of the intake passage 2 of the engine 1, a fuel tank is disposed above the air cleaner 5, and a first fuel injection valve is provided in the intake passage 2 near the engine. 4 and an air cleaner 5 directed toward the entrance of a funnel 6 provided in the intake passage 2.
The arrangement structure of the electrical component in which the second fuel injection valve 11 is disposed is described.

[0005]

According to the technique disclosed in the above publication, when the injector 10 is maintained, the fuel tank 20 must be removed from the frame 8 and the air cleaner 4 must be removed from the intake passage 6. When performing maintenance on the injector 12, it is necessary to remove the fuel tank 20 and remove the cover of the air cleaner 4, so that much time is required for maintenance work. Furthermore, since the injector 10 is only attached to the side of the intake passage 6, it may be exposed to muddy water or rainwater.

In the technique disclosed in the above publication, the first fuel injection valve 4
When maintenance is performed, the work is difficult unless the fuel tank and the air cleaner 5 are removed, and when the second fuel injection valve 11 is maintained, the fuel tank is removed.
The upper case of the air cleaner 5 must be removed, and the maintenance work is troublesome as in the technique disclosed in the publication.

Accordingly, an object of the present invention is to improve the maintainability of electric components and prevent the electric components from being exposed to rainwater or muddy water in an electric component arrangement structure of a motorcycle.

[0008]

According to a first aspect of the present invention, a vehicle body frame extends rearward from a head pipe, and an engine is disposed below the vehicle body frame.
In a motorcycle in which an intake box for temporarily storing intake air is disposed above the engine and a fuel tank is disposed behind the intake box, an upper surface of the intake box is closed with a lid, and fuel is provided near the lid and in the intake box. An electrical component such as a control unit for controlling the injection is arranged.

By removing the lid of the intake box, maintenance of electrical components such as a control unit for controlling fuel injection arranged in the intake box can be easily performed, and the maintenance time can be reduced. In addition, since the above-described electrical components are in the intake box, it is possible to prevent the electrical components from being exposed to muddy water, rainwater, and the like.

According to a second aspect of the present invention, there is provided a motorcycle in which a vehicle body frame extends rearward from a head pipe, a V-type engine is mounted on the vehicle body frame, and an electric fuel injection valve for injecting fuel into each cylinder is mounted on the engine. An intake box is provided between the front cylinder and the rear cylinder of the engine, an opening is provided in an upper portion of the intake box, and the opening is closed with a lid.All the fuel injection valves are provided near the lid and in the intake box. It is characterized by being stored.

By removing the lid of the intake box, maintenance of all the fuel injection valves arranged in the intake box can be easily performed, and the maintenance time can be reduced. Further, since the above-described fuel injection valve is provided in the intake box, it is possible to prevent the fuel injection valve from being exposed to muddy water, rainwater, and the like.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a side view of a main part of a motorcycle employing an electric component arrangement structure according to the present invention.
Is a pair of left and right main frames 1 from the head pipe 11.
2 and 12 (the back side main frame 12 is not shown) extends rearward (specifically, obliquely downward and downward), and pivot brackets 13 and 13 (back side pivot brackets) as brackets are provided at the rear of the main frames 12 and 12. 13 is not shown).

Reference numeral 16 denotes a front cylinder 16a and a rear cylinder 1
6b, and is attached to the engine mounting portions 17, 18 of the main frames 12, 12, and to the engine mounting portions 21, 22 of the pivot brackets 13, 13, respectively.

Reference numeral 24 denotes a swing arm which is swingably mounted on a pivot shaft 25 extending between the pivot brackets 13 and 13 and has a rear wheel 26 attached to a rear end thereof. Reference numeral 28 denotes a rear cushion unit, the upper end of which is attached to an upper bracket 31 provided above the swing arm 24, and the lower end of which is connected to the swing arm 2 via a first link 32.
The first link 32 is attached to a lower end of each of the pivot brackets 13 via a second link 34.

Reference numeral 36 denotes an intake box for temporarily storing air to supply air to the engine 16 and is mounted on the upper portions of the main frames 12 and 12. Reference numeral 37 denotes a fuel tank, which is arranged above the main frames 12, 12 and close to the rear of the intake box 36.

Reference numeral 41 denotes a rear fender, which is a cowl mounting portion 4 provided on the upper portions of the main frames 12, 12, respectively.
The front parts are mounted on the fuel tanks 2 and 43, and cover the upper part of the fuel tank 37, and further cover the upper part of the rear wheel 26.

Here, 45 is a front fork attached to the head pipe 11 so as to be steerable, 46 is a front wheel attached to the lower end of the front fork 45, and 47 and 48 are the engine 1
A hanger portion provided on the engine 16 side for attaching the main frame 6 to the main frames 12, 12 is provided.
A hanger portion provided on the engine 16 side for attaching the motor to the pivot brackets 13, 13, 53 is an oil pan provided on a lower portion of the engine 16, 54 is a fuel pump provided in the fuel tank 37, and 55 is a rear portion of the seat 44. It is a backrest provided on the rear fender 41.

FIG. 2 is a sectional view of an intake box and an intake system for accommodating electrical components according to the present invention.
The front throttle body 57 is attached to the front cylinder head 16c of FIG. 7A, and funnels 61... A first portion for supplying fuel to each cylinder is provided on a side portion of the throttle body 57.
Each of the injection valves 62 is attached, and the rear cylinder 16
b, a rear throttle body 63 is attached to the rear cylinder head 16d, and funnels 64 are attached to the inlet of each cylinder of the rear throttle body 63.
A second injection valve 65 for supplying fuel to each cylinder is attached to a side portion of the rear throttle body 63, and a front throttle body 57 and a rear throttle body 63 are provided.
A pedestal 66 is attached to the pedestal 66, and a tower 67 is constructed on the pedestal 66. The funnels 61,.
.. And a fourth fuel injection valve 72... That inject fuel directly into the openings 64. All, the fuel injection control unit 76, and the communication device 77 are housed in the intake box 36, and the intake box 36
Is provided with a lid 78 for closing the upper part of. The imaginary line in the figure shows a state where the lid 78 is removed.

The fuel injection control unit 76 includes:
The fuel injection amount is controlled by sending a control signal to each of the fuel injection valves 62, 65, 71, 72. In the related art, the fuel injection valve is disposed far from the engine in consideration of the influence of engine ignition noise. In the present invention, the electromagnetic wave can be shielded by the intake box 36 by disposing the fuel injection control unit 76 in the intake box 36.

Thus, in the present invention, the fuel injection control unit 76 and the fuel injection valves 62, 6
5, 71, 72 can be made shorter, and the wiring between them can be shortened. Further, since the fuel injection control unit 76 also includes an ignition unit for controlling the ignition timing, the influence of ignition noise on the ignition unit can be reduced and the mounting space for the ignition unit can be reduced.

FIG. 3 is a first plan view showing an intake box in which electric components according to the present invention are housed and its surroundings. The left and right main frames 12, 12 are extended rearwardly from the head pipe 11 in an inclined portion. 12a, 12a, and parallel portions 12b, 12b extending rearward substantially in parallel from the rear ends of the inclined portions 12a, 12a. An intake box 36 is arranged between the left and right main frames 12, 12, and the intake box 36 is provided. Adjacent to the rear of the box 36 is a fuel tank 37
Is arranged.

FIG. 4 is a second plan view showing the intake box containing the electrical components according to the present invention and the surroundings thereof. The lid 78 (see FIG. 3) attached to the upper part of the intake box 36 is removed, and the intake box is removed. 36 indicates that the inside of the camera has been made visible. In this state, each of the fuel injection valves 62, 65, 71,
If the maintenance of the throttle body 72 and the throttle bodies 57 and 63 is performed, the maintenance becomes easy.

As described above with reference to FIGS. 1, 2 and 4, according to the present invention, the vehicle body frame 14 is extended rearward from the head pipe 11, and a V-type engine 16 is mounted on the vehicle body frame 14. In the motorcycle 10, which is provided with electric fuel injection valves 62, 65, 71, 72 for injecting fuel into each cylinder, an intake box 36 is provided between a front cylinder 16a and a rear cylinder 16b of the engine 16, An opening is provided in the upper part of the intake box 36, and the opening is closed with a lid 78. All the fuel injection valves 62,
65, 71, and 72 are stored.

By removing the lid 78 of the intake box 36, all the fuel injection valves 6 arranged in the intake box 36 are removed.
2, 65, 71, 72 can be easily maintained, and the maintenance time can be reduced. Further, since the above-described fuel injection valves 62, 65, 71, 72 are located in the intake box 36, the fuel injection valves 62, 65, 7
1, 72 can be prevented from being exposed to muddy water, rainwater, and the like.

FIG. 5 is a side view of a main part showing a comparative example of an electric component arrangement structure of a motorcycle. A frame 101 is extended rearward from a steering head pipe 100, and a fuel tank 102 is mounted on an upper portion of the frame 101. An air cleaner 103 is arranged below the fuel tank 102,
The engine 104 is located further below the air cleaner 103.
And an injector 106 is attached to the side of the intake passage portion 105 extending upward from the engine 104, the inlet side of the intake passage portion 105 is attached to the air cleaner 103, and a funnel is provided at the inlet of the intake passage portion 105 in the air cleaner 103. The air cleaner 103 is attached so that fuel is injected toward the opening of the funnel 107.
It shows that the injector 108 was arranged in the inside.

As described above, when the injector 106 is arranged below the fuel tank 102 and the air cleaner 103 and the injector 108 is arranged inside the air cleaner 103 below the fuel tank 102, the injector 1
06 and 108, the fuel tank 102
In addition, a man-hour for removing the air cleaner 103 is required, and the maintainability is impaired.

As described above with reference to FIGS. 1, 2 and 4, according to the present invention, the vehicle body frame 14 is extended rearward from the head pipe 11, and the engine 16 is disposed below the vehicle body frame 14. An intake box 36 for temporarily storing intake air is arranged above the intake box 16, and the intake box 3
6, the upper surface of the intake box 36 is closed with a lid 78,
An electrical component such as a fuel injection control unit 76 for controlling fuel injection is disposed near the lid 78 and in the intake box 36.

By removing the lid 78 of the intake box 36, maintenance of electrical components such as the fuel injection control unit 76 disposed in the intake box 36 can be easily performed, and the maintenance time can be reduced. Further, since the above-described electrical components are located in the intake box 36, it is possible to prevent the electrical components from being exposed to muddy water, rainwater, and the like.

[0029]

According to the present invention, the following effects are exhibited by the above configuration. In the electric component arrangement structure for a motorcycle according to claim 1, since the upper surface of the intake box is closed with a lid, and electric components such as a control unit for controlling fuel injection are arranged near the lid and in the intake box, the intake box is provided. By removing the lid, maintenance of electrical components such as a control unit for controlling fuel injection disposed in the intake box can be easily performed, and maintenance time can be reduced. In addition, since the above-described electrical components are located in the intake box, it is possible to prevent the electrical components from being exposed to muddy water, rainwater, and the like.

According to a second aspect of the present invention, there is provided a motorcycle electrical component arrangement structure in which an intake box is provided between a front cylinder and a rear cylinder of an engine, an opening is provided in an upper portion of the intake box, and the opening is closed with a lid. Since all the fuel injection valves are housed in the vicinity of the lid and in the intake box, by removing the lid of the intake box, maintenance of all the fuel injection valves arranged in the intake box can be easily performed, Maintenance time can be reduced. Also, since the above-described fuel injection valve is located in the intake box,
The fuel injection valve can be prevented from being exposed to muddy water, rainwater, and the like.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a motorcycle employing an electric component arrangement structure according to the present invention.

FIG. 2 is a sectional view of an intake box and an intake system accommodating electrical components according to the present invention.

FIG. 3 is a first plan view showing an intake box in which electrical components according to the present invention are housed and its surroundings;

FIG. 4 is a second plan view showing the intake box containing the electrical components according to the present invention and its surroundings;

FIG. 5 is a side view of a main part showing a comparative example of an electric component arrangement structure of the motorcycle.

[Explanation of symbols]

10: motorcycle, 14: body frame, 16: engine, 16a: front cylinder, 16b: rear cylinder, 3
6 ... intake box, 37 ... fuel tank, 62, 65, 7
1, 72 ... fuel injection valves (first fuel injection valve, second fuel injection valve, third fuel injection valve, fourth fuel injection valve), 76, 77 ...
Electrical components (fuel injection control unit, communication device), 78 ... lid.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) F02M 35/10 F02M 35/16 K 35/16 F02B 77/00 P 51/02 F02M 35/10 301C 69 / 00 51/02 E // F02B 77/00 69/00 350P (72) Inventor Aigo Goin 1-4-1, Chuo, Wako-shi, Saitama F-term in Honda R & D Co., Ltd. 3G066 AA01 AA09 AB02 AD10 BA28 BA31 BA53 BA65 BA66 CC06U CD04 CD26 3G301 JA00 JA15 LB01 MA11

Claims (2)

[Claims] 1. A vehicle body frame is extended rearward from a head pipe, and an engine is arranged below the vehicle body frame.
In a motorcycle in which an intake box for temporarily storing intake air is disposed above the engine, and a fuel tank is disposed behind the intake box, an upper surface of the intake box is closed with a lid, and a lid is provided near the lid and in the intake box. An electric component arrangement structure for a motorcycle, wherein electric components such as a control unit for controlling fuel injection are arranged in the vehicle. 2. A motorcycle in which a vehicle body frame extends rearward from a head pipe, a V-type engine is mounted on the vehicle body frame, and an electric fuel injection valve for injecting fuel into each cylinder is mounted on the engine. An intake box is provided between the front cylinder and the rear cylinder, an opening is provided in an upper part of the intake box, and the opening is closed with a lid.All the fuel injection valves are provided near the lid and in the intake box. A motorcycle electrical component arrangement structure characterized by being housed.