JPH0578471B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for controlling the tilt angle of an instrument panel exclusively for motorcycles.

[Prior Art and Problems to be Solved by the Invention] Normally, when driving a motorcycle, as the speed increases, the driver leans forward to reduce wind pressure and improve running stability. I'm trying to secure it. However, conventionally, the instrument panel with instruments such as a speedometer remains fixed to the vehicle body, so even if the driver's posture changes, such as leaning forward or standing up, due to an increase or decrease in driving speed, the instrument panel remains fixed to the vehicle body. As a result, it is difficult for the driver to visually check the instrument panel, which is not acceptable.
It is difficult to read accurate values from instruments, which poses a traffic safety problem.

[Means for Solving the Problems] In view of the above-mentioned circumstances, the present invention was created for the purpose of providing a tilt angle control structure for an instrument panel for a motorcycle that can eliminate these drawbacks. An instrument panel provided with an instrument panel such as a speedometer, an angle adjustment mechanism that can freely adjust the inclination angle of the instrument panel, a speed detection means for detecting the traveling speed, and a speed detection means for detecting the inclination angle of the instrument panel. The vehicle is constructed using a tilt angle detecting means, and a control unit that issues a control command to an angle adjustment mechanism to reduce the tilt angle of the instrument panel, which increases the traveling speed, based on the detection results from both of these detecting means. The vehicle is characterized in that it is configured to automatically control the inclination of the instrument panel according to the traveling speed.

With this configuration, the present invention automatically tilts the inclination angle of the instrument panel so that it becomes smaller as the traveling speed increases, thereby ensuring safety.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a running vehicle body of a motorcycle, and an instrument panel 3 is provided in the center of a driving handle 2 of the vehicle body 1 on which gauges such as a speedometer, a tachometer, and a fuel gauge are arranged. The instrument panel 3 has a base end integrally attached to a rotating shaft 4 that is interlocked with an electric motor 5. The instrument panel 3 is swung up and down by the forward and reverse drive of the electric motor 5, which will be described later, and its inclination angle is adjusted.In this way, the angle adjustment mechanism is configured. There is.

Further, FIG. 4 shows an example of a drive circuit for the electric motor 5. Here, reference numeral 6 denotes a tilt angle detection sensor (tilt angle detection means) provided to detect the swing angle of the instrument panel 3, and is composed of a potentiometer. It is set so that as the tilt angle becomes smaller, a larger voltage is outputted as the detected value A. Further, 7 is a speed detection sensor (speed detection means) that detects the running speed of the vehicle body, and this sensor has an f-V converter 7a that converts the pulse frequency transmitted in accordance with the running speed into voltage. The higher the traveling speed, the higher the voltage output as the detected value B. Further, 8 and 9 are comparators to which the detection signals from both the sensors 6 and 7 are input. If the speed detection value B from the detection sensor 7 is larger (A>B),
In other words, it is set to output a high level output when the angle of inclination of the instrument panel 3 is small relative to the traveling speed, and output a low level output when the angle of inclination is large (that is, when A<B). . In addition, the input from the speed detection sensor 7 to the other comparator 9 is made via an adder 10 which adds a predetermined addition value C to the speed detection value B in order to ensure a certain dead area. , when the value (B+C) obtained by adding the added value C to the speed detection value B is smaller than the angle detection value A (B+C<A), outputs a low level, and when it is larger (B+C>A), outputs a high level. It is set to come out.

Furthermore, 11 is a changeover switch for switching between automatic and manual mode, and 12 is a self-resetting type manual switch.
By operating to the 2a side, the transistor
The base voltage of Tr ₁ decreases and the transistor Tr ₁
becomes ON, which turns the relay switch on.
RL ₁ switches from contact NC side to NO side, battery 13, key switch 14, relay switch
A current I ₁ flows to the electric motor ₅ through RL 1 to the electric motor 5 and to the ground, and the current motor 5 is driven forward, and the instrument panel 3 is tilted in the direction of decreasing the tilt angle. . On the other hand, manual switch 12
By operating the switch to the switch contact 12b side, the other transistor Tr ₂ is turned ON, and the relay switch RL ₂ is switched, and the electric motor 5, via the battery 13, the key switch 14, and the relay switch RL ₂ is A current I ₂ flows in the opposite direction to the ground, thereby tilting the instrument panel 3 in a direction that increases the angle of inclination, thus making it possible to manually control the tilting of the instrument panel 3. ing.

On the other hand, when the changeover switch 11 is switched to the automatic side (see FIG. 4), the circuits from the comparators 8 and 9 to the base terminals of the corresponding transistors Tr ₁ and Tr ₂ become conductive. The transistors Tr ₁ and Tr ₂ are controlled so that they are turned on when the control signals from the comparators 8 and 9 are at the aforementioned low level, and turned off when they are at a high level. That is, when the angle detection value A is smaller than the speed detection value B mentioned above (if A<B, naturally A<B+C), the output from the comparator 9 remains at a high level, but the output from the comparator 8 remains high. The output of becomes low level, and as a result, the transistor Tr ₁ side is turned on, and as mentioned above, the current I ₁ flows to the electric motor 5, driving it forward, and the instrument panel 3 is moved in the direction where the tilt angle becomes smaller. Then, the tilting is performed until both detection values A and B become equal. Conversely, angle detection value A
is larger than the sum of the speed detection value B and the addition value C (if B+C<A, naturally B<A), contrary to the above, the transistor Tr ₂ turns ON and the electric motor 5 receives the current I. ₂ flows and drives backward, and the instrument panel 3 tilts in the direction of increasing the tilt angle until the angle detection value A becomes equal to the speed detection value B plus the additional value CW. Automatic tilting control is performed on the traveling speed of the board 3, and the control section 15 is configured in this manner.

In the embodiment configured as described above, when the motorcycle is driven, if the changeover switch 12 is switched to the automatic side, the instrument panel 3 automatically changes its inclination angle in accordance with the traveling speed of the vehicle. It's going to change. In other words, the faster the running speed,
The driver's posture becomes bent forward, but in this case, as described above, the detected values from the traveling speed detection sensor 7 and the tilt angle detection sensor 6 are compared and determined by the control section 15, and If the inclination angle of the instrument panel 3 is too large (standing up too much), the electric motor 5 receives current I ₁ and is driven forward, and the inclination angle of the instrument panel 3 decreases until it becomes an angle corresponding to the traveling speed. . On the other hand, if the inclination angle of the instrument panel 3 is too small relative to the traveling speed (too much lodging), the electric motor 5
is reversely driven by the flow of current I ₂ and increases until the angle of inclination of the instrument panel 3 corresponds to the traveling speed. Therefore, even if the driver's driving position changes from a standing position to a leaning forward position depending on the driving speed, the driver can visually recognize the instrument panel 3 whose inclination angle matches the driving position corresponding to the scanning speed. become.

As described above, in the present invention, the inclination angle of the instrument panel 3 automatically changes according to the driving speed, so the driver can adjust the inclination angle of the instrument panel 3 to match the change in driving posture according to the driving speed. Panel 3 will be visible, and therefore the driver will be able to see it easily and will not be in an unreasonable position, and will be able to read the instruments accurately, greatly contributing to safe driving. .

Furthermore, since the value C added by the adder 10 is set as a dead zone, the automatic control of the tilt angle is stabilized, and the instrument panel 3 constantly moves due to slight changes in speed. There are no defects.

Further, in the embodiment described above, the changeover switch 1
1 to the manual side, the tilt angle of the instrument panel 3 will not be automatically controlled, and the instrument panel 3 will not be automatically controlled.
In this case, the inclination angle of the instrument panel 3 can be freely adjusted by operating the manual switch 12.
This has the advantage that the optimum inclination angle suitable for the driver can be selected at will.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, but as a means for changing the inclination angle of the instrument panel 3, it is possible to change the shape by swinging around a point as a fulcrum as in the above-mentioned embodiment. Instead, for example, as shown in FIG. 6, the instrument panel 3 may be configured to be able to change its shape freely using a two-point support shaft provided by a link 16.

[Operations and Effects] In summary, since the present invention is constructed as described above, the instrument panel is configured such that the control section performs the following functions based on the detection results from the speed detection means and the tilt angle detection means.
As the driving speed increases, the slope angle is automatically controlled to become smaller. Therefore, for drivers whose driving posture tends to be hunched over as the driving speed increases, the instrument panel constantly changes the driving posture. The tilted position corresponds to changes in the height of the vehicle, which makes it easy to see the instrument panel and prevents the vehicle from becoming an unreasonable dead position.
It also allows for accurate reading of instruments, which can greatly assist in safe driving.

[Brief explanation of the drawing]

The drawings show an embodiment of the instrument panel inclination angle control structure for a motorcycle according to the present invention, in which FIG. 1 is an overall side view of the motorcycle, and FIG. 2 is a schematic front view of the instrument panel. 3A and 3B are side views of the instrument panel, FIG. 4 is a control circuit diagram, FIG. 5 is a timing chart, and FIGS. 6A and 6 are side views of the instrument panel showing other examples. In the figure, 1 is a vehicle body, 3 is an instrument panel, 5 is an electric motor, 6 is a tilt angle detection sensor, 7 is a speed detection sensor, 8 and 9 are comparators, and 15 is a control section.

Claims (1)

[Claims] 1. An instrument panel equipped with instruments such as a speedometer, an angle adjustment mechanism that can freely adjust the inclination angle of the instrument panel, a speed detection means that detects the traveling speed, and an inclination angle detector that detects the inclination angle of the instrument panel. and a control section that issues a control command to the angle adjustment mechanism so that the angle of inclination of the instrument panel becomes smaller as the traveling speed increases, based on the detection results from both of these sensing means, 1. An instrument panel tilt angle control structure exclusively for motorcycles, characterized in that the instrument panel is configured to automatically control the tilt angle of the instrument panel depending on the vehicle.