JP6958303B2 - Wing device for motorcycles - Google Patents

Description

The present invention relates to a wing device for a motorcycle having a front cowl arranged so as to cover both left and right sides of the engine from the front portion of the vehicle above the front wheels.

It is a motorcycle equipped with a front cowling that covers from the upper part of the front fork that supports the front wheels to the left and right sides of the engine. The front cowling has an opening formed in front of the engine and behind the front wheels. Patent Document 1 discloses an engine cooling structure for a motorcycle in which a guide plate extending toward the engine is provided on an inner surface of a side wall behind the portion.

Japanese Unexamined Patent Publication No. 2015-157560

In the engine cooling structure of a motorcycle described in Patent Document 1, the running wind can be intensively flowed to the engine by a guide plate to improve the cooling efficiency of the engine, but for example, the cold immediately after the engine is started. The engine cannot be warmed up early while driving. That is, the temperature of the engine cannot be adjusted quickly. Further, in the engine cooling structure of the motorcycle described in Patent Document 1, the rectifying function of the running wind and the aerodynamic characteristics for stabilizing the vehicle posture are not considered.

An object of the present invention is to take the above circumstances into consideration, to quickly adjust the temperature of the engine, to rectify the running wind satisfactorily, and to stabilize various vehicle postures. The purpose is to provide a wing device for a motorcycle that can realize excellent aerodynamic characteristics.

The wing device for a motorcycle according to the present invention has an engine arranged behind the front wheels and a front cowl arranged so as to cover both left and right sides of the engine from the front part of the vehicle above the front wheels. In a motorcycle, a plurality of wings arranged in the vertical direction of the vehicle are arranged inside the front cowl in a gap between the front cowl and the front wheels when viewed from the front of the vehicle, and the wing angles can be changed. Each wing is configured to extend in the front-rear direction of the vehicle , and the wing is supported by the front cowl by using a hinge, a wire is connected to the hinge on one side, and the wire is operated by an actuator to operate the wing. It is characterized in that the angle is changed.
Further, the wing device of the motorcycle according to the present invention includes an engine arranged behind the front wheels, a front cowl arranged so as to cover both left and right sides of the engine from the front part of the vehicle above the front wheels. Inside the front cowl, a plurality of wings arranged in the vertical direction of the vehicle are arranged in a gap between the front cowl and the front wheel when viewed from the front of the vehicle so that the wing angle can be changed. Each wing is configured to extend in the front-rear direction of the vehicle, and the motorcycle has a vehicle speed sensor for detecting the vehicle speed, a vehicle tilt angle sensor for detecting the tilt angle of the vehicle, and an actuator for changing the wing angle. It has a control means for outputting an operation command, and the control means is configured to change the wing angle based on the detection values from the vehicle speed sensor and the vehicle inclination angle sensor. Is.

According to the present invention, when the vehicle is cold running immediately after the engine is started, a plurality of wings are set to have the maximum wing angle to function as a shutter to block the running wind and warm the engine early. The machine can be carried out. Further, during normal running, the engine can be cooled at an early stage by setting the wing angles of the plurality of wings so that the running wind flows toward the engine in the maximum amount. As a result, the temperature of the engine can be adjusted quickly.

Further, by changing the wing angles of the plurality of wings when the vehicle is running, the running wind can be rectified satisfactorily, and as a result, the air resistance of the vehicle can be reduced and the fuel consumption can be improved.

Furthermore, for example, when the vehicle is cornering or accelerating or decelerating, the wing angles of a plurality of wings are changed to generate downforce (negative lift) toward the road surface by these wings to stabilize the vehicle posture. can. By changing and adjusting the wing angle of the wing in this way, it is possible to realize excellent aerodynamic characteristics capable of stabilizing various vehicle postures.

The left side view which shows the motorcycle to which the 1st Embodiment of the wing device of the motorcycle which concerns on this invention is applied. FIG. 1 is a view taken along the line II of FIG. The wing device of FIGS. 1 and 2 is schematically shown, and FIGS. 1A and 2B are explanatory views for explaining a change state of a wing angle. The block diagram which shows the structure of the 2nd Embodiment in the wing device of the motorcycle which concerns on this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present embodiment, the expressions of up / down, left / right, and front / rear are based on the occupant at the time of getting on the vehicle, particularly the driver.

[A] First Embodiment (FIGS. 1 to 3)
As shown in FIG. 1, the motorcycle 10 has a vehicle body frame 11, and a head pipe 12 is provided at a front end portion of the vehicle body frame 11. The head pipe 12 is provided with a steering mechanism 16 such as a pair of left and right front forks 14 and a handlebar 15 that rotatably support the front wheels 13. By operating the handlebar 15, the front wheels 13 are rotatably steered to the left and right via the front fork 14. Further, a front fender 17 that covers the upper part of the front wheel 13 is attached to the front fork 14.

The front ends of the main tube 18 and the down tube 19 are connected to the head pipe 12. The main tube 18 extends diagonally downward and rearward from the head pipe 12 at the center position in the vehicle width direction. Further, the down tube 19 extends downward from the head pipe 12 at the center position in the vehicle width direction. The engine 20 is suspended between the main tube 18 and the down tube 19 by these main tubes and the down tube 19 and is arranged behind the front wheels 13.

Here, the engine 20 is configured such that the cylinder assembly 29 is projected diagonally upward and forward from the crankcase 28, and the cylinder assembly 29 is sequentially coupled with the cylinder 29A, the cylinder head 29B, and the head cover 29C from the side of the crankcase 28. Cylinder.

A seat rail (not shown) is connected to the rear end of the main tube 18. The seat rail extends to the rear of the vehicle and supports the seat 22 arranged above the seat rail together with the seat pillar 24. The rear wheel 23 is arranged below the seat 22. The rear wheels 23 are rotationally driven by the driving force of the engine 20 transmitted by a drive chain or the like.

Further, the fuel tank 25 is arranged in front of the seat 22 and behind the head pipe 12. The fuel tank 25 is fixed and supported by the main tube 18. The front cowl 26 continuously covers the front lower part of the fuel tank 25 from the front part of the vehicle above the front wheels 13 to the left and right side portions and the lower part of the engine 20. Further, the rear cowl 27 covers the lower part of the seat 22. With these front cowls 26 and rear cowls 27, the motorcycle 10 is configured with a full cowl structure to reduce air resistance and improve the appearance.

As shown in FIGS. 1 and 2, the front cowl 26 has a pair of left and right upper side cowls 31 joined to the lower end of the body cowl 30. A pair of left and right lower side cowls 32 are joined to the lower ends of each of these upper side cowls 31. Then, the inner cowl 33 is joined between these lower side cowls 32 to form a structure.

A screen 34 is joined to the upper end of the body cowl 30, and a meter panel 35 is joined to the rear end. Further, a rearview mirror 36 is installed on the body cowl 30, and a headlamp (not shown) is further arranged.

The upper side cowl 31 and the lower side cowl 32 are joined in the vertical direction of the vehicle as described above to form an opening 37 in front of the engine 20 and behind the front wheels 13. The traveling wind A (FIG. 3) during vehicle traveling is introduced into the front cowl 26 through the opening 37.

As shown in FIGS. 1 and 2, the motorcycle 10 of the first embodiment is equipped with a wing device 40 having a plurality of wings 41 inside the upper side cowl 31 and the lower side cowl 32 in the front cowl 26. do.

That is, inside the upper side cowl 31 and the lower side cowl 32 in the front cowl 26, the upper side cowl 31 and the lower side cowl 32 and the front wheel 23 are arranged in a part of the gap 38 in the vehicle vertical direction in the front view of the vehicle. A plurality of wing 41s are arranged. Further, these plurality of wings 41 are arranged behind the openings 37 formed in the upper side cowl 31 and the lower side cowl 32, and each wing 41 extends in the front-rear direction of the vehicle.

Further, a plurality of wings 41 arranged in the vertical direction of the vehicle are arranged one set on each side of the vehicle with the front wheels 13 interposed therebetween when viewed from the front of the vehicle. Here, a set of a plurality of wing 41s in the vehicle vertical direction arranged on the left side with respect to the front wheels 13 when viewed from the front of the vehicle is referred to as a left set 42L, and a set of a plurality of wing 41s arranged on the right side with respect to the front wheels 13 in the vehicle vertical direction is referred to as a left set 42L. The set of wings 41 is referred to as the right set 42R.

As shown in FIG. 3, the plurality of wings 41 of the left set 42L and the right set 42R are supported by the upper side cowl 31 and the lower side cowl 32 by using the hinge 43, and the wing 41 has one side of the hinge 43. An operating means such as a wire 44 is connected to the wire 44. When the wire 44 is manually pushed or pulled by an actuator in the substantially vertical direction of the vehicle (direction of arrow C), the plurality of wings 41 of the left set 42L and the right set 42R are interlocked in each set. The wing angle α is changed in synchronization.

Further, the wing angles α of the plurality of wings 41 are changed independently for each set. That is, the wing angles α of the plurality of wings 41 of the left set 42L and the plurality of wings 41 of the right set 42R are independently changed individually. As shown in FIGS. 1 and 2, the operation of changing the wing angle α of the wing 41 is performed by operating the left operation unit 45L and the right operation unit 45R provided on the left side and the right side of the handlebar 15, respectively. .. That is, by operating the left operation unit 45L, the wing angle α of the wing 41 of the left set 42L is changed, and by operating the right operation unit 45R, the wing angle α of the wing 41 of the right set 42R is changed.

Here, the left operation unit 45L and the right operation unit 45R are preferably a rotatable knob portion when the operating means such as the wire 44 is manually operated, and the actuator operation when the operation means is operated by using the actuator. A switch for making the switch is preferable.

Each of the plurality of wings 41 of the left set 42L and the right set 42R is formed in a plate shape, and the running wind A (FIG. 3) can be rectified by changing the wing angle α. It has a function of opening and closing in a blind shape to block the running wind A or guide the running wind A to the engine 20, and to generate a negative lift (downforce F) toward the road surface B (FIG. 2) by the running wind A.

Since it is configured as described above, the following effects (1) to (5) are obtained according to the first embodiment.
(1) As shown in FIGS. 1 to 3, a plurality of sheets arranged in the vertical direction of the vehicle in the gap 38 between the front cowl 26 (upper side cowl 31, lower side cowl 32) and the front wheel 13 when viewed from the front of the vehicle. The wing 41 is arranged so that the wing angle α can be changed. Therefore, for example, when the motorcycle 10 is cold-running immediately after the engine 20 is started, a plurality of wings 41 are set so that the wing angle α is the maximum angle, and the wings 41 are brought into contact with each other to make a shutter. The engine 20 can be warmed up early by shutting off the outside air including the running wind A. Further, during normal traveling, the engine 20 can be cooled at an early stage by setting the wing angles α of the plurality of wings 41 so that the traveling wind A flows toward the engine 20 by the maximum amount. As a result, the temperature of the engine 20 can be adjusted quickly.

(2) A plurality of wings 41 arranged in the vertical direction of the vehicle can change the wing angle α in the gap 38 between the front cowl 26 (upper side cowl 31, lower side cowl 32) and the front wheel 13 when viewed from the front of the vehicle. Is located in. Therefore, the traveling wind A can be rectified satisfactorily by changing the wing angles α of the plurality of wings 41 while the vehicle is traveling, and as a result, the air resistance of the motorcycle 10 can be reduced and the fuel efficiency can be improved. ..

Further, by carrying out the early warm-up of the engine 20, the exhaust gas purification catalyst provided in the exhaust system of the engine 20 can be activated at an early stage, so that the exhaust gas purification performance can be improved.

(3) A plurality of wings 41 arranged in the vertical direction of the vehicle can change the wing angle α in the gap 38 between the front cowl 26 (upper side cowl 31, lower side cowl 32) and the front wheel 13 when viewed from the front of the vehicle. Is located in. Therefore, for example, by changing the wing angles α of the plurality of wings 41 during cornering traveling or acceleration / deceleration of the vehicle, downforce F (negative lift) toward the road surface B is generated by these wings 41. , The vehicle posture of the motorcycle 10 can be stabilized. By changing and adjusting the wing angle α of the wing 41 in this way, it is possible to realize excellent aerodynamic characteristics capable of stabilizing various vehicle postures.

(4) A plurality of wings 41 arranged in the vertical direction of the vehicle can change the wing angle α in the gap 38 between the front cowl 26 (upper side cowl 31, lower side cowl 32) and the front wheel 13 when viewed from the front of the vehicle. Is located in. Therefore, when the motorcycle 10 is idling, a plurality of wings 41 are set so that the wing angle α is the maximum angle, and the wings 41 are brought into contact with each other to function as a shutter and suppress the emission of engine sound. However, the soundproofing effect of the motorcycle 10 can be improved.

(5) The wing 41 of the left set 42L and the wing 41 of the right set 42R sandwiching the front wheel 13 are configured so that the wing angle α can be changed independently for each set. Therefore, by making the wing angle α of the wing 41 of the left set 42L different from the wing angle α of the wing 41 of the right set 42R, the rectifying function of the traveling wind A of the above-mentioned (1) and (2), the engine 20 The temperature adjustment function of can be partially set. Further, for example, when the vehicle is tilted during the cornering run of the motorcycle 10, the downforce F is adjusted by making the wing angle α of the wing 41 of the left set 42L different from the wing angle α of the wing 41 of the right set 42R. , The turning performance of the motorcycle 10 can be improved.

[B] Second embodiment (FIG. 4)
In this second embodiment, the same parts as those in the first embodiment are designated by the same reference numerals as those in the first embodiment to simplify or omit the description.

The wing device 50 of the motorcycle of the second embodiment is different from the first embodiment in that the control device 51 (ECU) as a control means has an engine temperature sensor 52, a vehicle speed sensor 53, a vehicle tilt angle sensor 54, and an engine rotation. Based on the values detected from the number sensor 55, the wing angles α of the plurality of wings 41 of the left set 42L and the right set 42R are configured to be changed, and the left operation unit 45L and the right operation unit 45R of the handle bar 15 are configured to change. This is an omitted point.

That is, the engine temperature sensor 52 detects the temperature of the engine 20, and the vehicle speed sensor 53 detects the vehicle speed of the motorcycle 10. The vehicle tilt angle sensor 54 detects the tilt angle of the motorcycle 10 during cornering travel. The engine speed sensor 55 detects the rotation speed of the crankshaft of the engine 20, that is, the rotation speed of the engine 20.

The control device 51 is used from the engine temperature sensor 52, the vehicle speed sensor 53, the vehicle tilt angle sensor 54, and the engine rotation speed sensor 55 in order to change the wing angles α of the plurality of wings 41 of the left set 42L and the right set 42R. The operation command P is output to the actuator 56 based on the detected value of. The actuator 56 is an electric motor, a hydraulic cylinder, or the like, and is connected to a wire 44 to generate a force for changing the wing angle α of the wing 41 via the wire 44.

For example, the control device 51 sets the wing angle α so that the wing 41 functions as a shutter when the engine 20 has a low temperature of the first threshold value (for example, 82 ° C.) or less based on the temperature detected from the engine temperature sensor 52. The operation command P to be set to the maximum angle is output. Further, in the control device 51, when the engine 20 has a high temperature equal to or higher than the second threshold value (for example, 100 ° C.) based on the temperature detected from the engine temperature sensor 52, the running wind A is most directed toward the engine 20 by the wing 41. The operation command P that sets the wing angle α so that a large amount of flow occurs is output.

Further, when the vehicle speed detected by the vehicle speed sensor 53 is a high speed of a third threshold value (for example, 80 km / h) or more, the control device 51 rectifies the traveling wind A to reduce the air resistance of the motorcycle 10. Therefore, the operation command P is output so as to set the wing 41 at the optimum wing angle α.

Further, in the control device 51, the vehicle speed and the vehicle inclination angle detected by the vehicle speed sensor 53 and the vehicle inclination angle sensor 54 are equal to or higher than the fourth threshold value (for example, 60 km / h) and the fifth threshold value (for example, 20 degrees), respectively. In this case, the operation command P is output so as to set the wing angle α of each wing 41 of the left set 42L and the right set 42R, which is necessary for improving the turning performance during cornering running.

Further, in the control device 51, the engine speed detected by the engine speed sensor 55 is equal to or higher than the sixth threshold value (for example, 1150 rpm), but the vehicle speed detected by the vehicle speed sensor 53 is 0 km / h during idling. , Outputs an operation command P that sets the wing angle α to the maximum angle so that the wing 41 functions as a shutter.

Since it is configured as described above, in the second embodiment as well, the same effects as the effects (1) to (5) of the first embodiment can be obtained, and the change of the wing angle α of the wing 41 can be automated. It plays the effect.

Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention, and their replacements and changes can be made. Is included in the scope and gist of the invention, and is also included in the invention described in the claims and the equivalent scope thereof.

For example, in the present embodiment, the wing 41 of the left set 42L and the right set 42R is configured to extend in the front-rear direction of the vehicle, but the wing is the upper side cowl 31 and the lower side cowl 32 of the front cowl 26. It may be configured to extend inward in the vehicle width direction from the inside. In this case, it is difficult to completely shut off the running wind A, but it is possible to realize a partial suppression effect of the running wind A, a partial temperature adjustment effect of the engine 20, and the like.

10 ... Motorcycle, 13 ... Front wheel, 20 ... Engine, 26 ... Front cowl, 31 ... Upper side cowl, 32 ... Lower side cowl, 38 ... Gap between front cowl and front wheel, 40 ... Wing device, 41 ... Wing, 42L ... Left set, 42R ... Right set, 50 ... Wing device, 51 ... Control device (control means), 52 ... Engine temperature sensor, 56 ... Actuator, A ... Running wind, P ... Operation command from control device, α ... Wing angle.

Claims (4)

In a motorcycle having an engine arranged behind the front wheels and front cowls arranged so as to cover both left and right sides of the engine from the front part of the vehicle above the front wheels.
Inside the front cowl, a plurality of wings arranged in the vertical direction of the vehicle are arranged in a gap between the front cowl and the front wheels when viewed from the front of the vehicle, and the wing angles can be changed. It is configured to extend in the front-back direction ,
The wing is characterized in that it is supported by the front cowl by using a hinge, a wire is connected to one side of the hinge, and the wing angle is changed by operating the wire by an actuator. Wing device for motorcycles. In a motorcycle having an engine arranged behind the front wheels and front cowls arranged so as to cover both left and right sides of the engine from the front part of the vehicle above the front wheels.
Inside the front cowl, a plurality of wings arranged in the vertical direction of the vehicle are arranged in a gap between the front cowl and the front wheels when viewed from the front of the vehicle, and the wing angles can be changed. It is configured to extend in the front-back direction,
The motorcycle has a vehicle speed sensor that detects the vehicle speed, a vehicle inclination angle sensor that detects the inclination angle of the vehicle, and a control means that outputs an operation command to an actuator to change the wing angle. A wing device for a motorcycle, wherein the control means is configured to change the wing angle based on a value detected from the vehicle speed sensor and the vehicle inclination angle sensor. A plurality of the wings arranged in the vertical direction of the vehicle are arranged one set on each side of the vehicle with the front wheels in between.
The wing device for a motorcycle according to claim 1 or 2 , wherein the plurality of the wings are configured to change the wing angle in conjunction with each other and independently for each set. .. The motorcycle has an engine temperature sensor that detects the temperature of the engine and a control means that outputs an operation command to an actuator in order to change the wing angle of the wing.
Based on the temperature detected from the engine temperature sensor, the control means sets the wing angle to the maximum angle so that the wing functions as a shutter when the engine is at a temperature equal to or lower than the first threshold value. It is configured to output a command and output the operation command that sets the wing angle so that the running wind flows toward the engine by the wing in the maximum amount when the temperature of the engine is equal to or higher than the second threshold value. The wing device for a motorcycle according to any one of claims 1 to 3, wherein the wing device of the motorcycle is characterized in that.

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