JPS6343273B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is intended for vehicles such as motorcycles where air resistance during driving is directly applied to the occupants, and the seat position of the vehicle can be adjusted. The present invention relates to a seat position adjustment device that allows an occupant to change their driving posture.

(Prior art) For example, seats in motorcycles are generally fixed to the vehicle body and cannot be adjusted, so if you start driving at high speed while maintaining an upright driving position during low speed driving, you will experience considerable air resistance. I often feel tired after receiving this.
Therefore, as the speed increases, the occupants usually move their sitting position backwards and take a prone position.

In connection with this, for example, a method was developed in which the seat could be moved forward and backward.
Although proposed in Publication No. 114783, the adjustment device in this case is merely a device that moves and adjusts the seat to a specific position before driving and then fixes the seat in that position using a locking means. Therefore, the adjustment device described above can only provide the occupant with an appropriate driving posture at a specific speed, and at other speeds, the adjustment device cannot match the driving speed unless the sitting position is changed. This has the disadvantage of not being able to maintain a proper driving posture.

(Purpose of the Invention) This invention was made in view of the above problem, and aims to make it possible to maintain a comfortable driving position and obtain the optimal driving position for each traveling speed without changing the sitting position. purpose.

(Structure of the Invention) FIG. 1 is an overall configuration diagram for clearly showing the structure of the invention.

That is, a seat moving means B for moving the seat A in the front-rear direction, a seat displacement amount detecting means C for detecting the displacement amount of the moving seat A, a vehicle speed detecting means D for detecting the traveling speed of the vehicle, and The crew of
Initial value setting means E sets the movement position of seat A selected for low speed driving and the movement position of seat A selected for high speed driving as initial values when the vehicle is stopped; and setting by initial value setting means E. and a control means G that moves the seats A to respective set positions within the range according to the vehicle speed.
The seat A is moved and adjusted to an appropriate position within an initial setting range according to the traveling speed.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 2 shows an example for a motorcycle, and the seat A is supported so that its movement can be adjusted as shown below, with F in the figure corresponding to the front and R corresponding to the rear. Reference numeral 10 denotes a vehicle body frame, which, as shown in FIG. 3, consists of a pair of left and right main pipes 11 and an auxiliary pipe 12 that connects the main pipes 11. U-shaped guide rails 13 are fixed onto each main pipe 11 of the vehicle body frame 10, and the grooves of these guide rails 13 face each other as shown in FIG. 4. A U-shaped movable base 14 with grooves facing downward is attached to the bottom of the seat A, and guide rollers 15 are fitted on both sides of the movable base 14 to freely rotate in each groove of the guide rail 13. This guide roller 15 is provided, and this guide roller 15 is
As shown in FIG. 3, they are provided on the movable base 14 so as to form the front and back. Reference numeral 16 denotes a cylinder mounting board, which is provided between both main pipes 11, and the base end of the drive cylinder 17 is fixed to this cylinder mounting board 16. The front end of a left-right parallel return spring 18 is locked to this cylinder mounting board 16, while the rear end of the return spring 18 connects the movable base 14 and the drive cylinder 17 as shown in FIG. Connecting plate 1
9, which urges the drive cylinder 17 in the direction of contraction. As shown in FIG. 3, a mounting piece 20 is protruded from one rear end of the guide rail 13, and a casing 21 of the seat displacement detection means C is attached to the tip of the mounting piece 20.
At the same time, to this casing 21,
The front end of the rolled-up telescopic gauge 22 is fixed to the connecting plate 19 to constitute the seat displacement detection means C. The casing 21 is provided with means for outputting the displacement amount of the recoil spring (not shown) and the telescopic gauge 22 as an electrical signal.
In addition, the auxiliary pipe 12 and the cylinder mounting board 1
A first reinforcing plate 23 is connected between 6, and further,
A second reinforcing plate 24 is fixed between the connecting plate 19 and the movable base 14.

The seat position adjustment device for the seat support device configured as described above is configured as follows.

As shown in FIG. 2, B is a seat moving means that includes a compressor 25, an electromagnetic three-way cock 26, and the drive cylinder 17 (return spring 18).
(including FIGS. 3 and 4), and the compressor 25 is driven by a battery 27 or an engine (not shown) only when the seat A is moved, and is controlled by a control means (microcomputer). ) made by G. Mikata Kotoku 26 is
It is controlled by control means G, in which case the compressor 25 and the drive cylinder 17 are communicated with each other to supply air (or oil) to the cylinder 17. It can be switched between an open state (ON state), an atmosphere open state in which air (or oil) from the drive cylinder 17 is released through the atmosphere release port 26a, and a closed state (OFF state) in which the communication is cut off. In the open state, the drive cylinder 17 is expanded by the compressor 25, allowing the seat A to move rearward in the R direction, while the return spring 18 (FIGS. 3 and 4) allows the seat A to move forward. Move seat A in a certain F direction. Further, the seat displacement amount detection means C is connected to the control means G via the A/D converter 28, and the vehicle speed detection means D is provided, for example, with respect to the front axle (not shown) and It is connected to the control means G via an A/D converter 28 for outputting a signal. Furthermore, this control means G is connected to a main switch 29 that can be turned off when there is no need to control the movement of the seat A, and also connected to an initial value setting means E having an initial value setting switch (not shown). .

FIG. 5 shows a flowchart for controlling the seat position adjustment device configured as described above. In each figure of FIG. 5, P ₁ to _{P 27} indicate each step of the flowchart.

Of FIG. 5, FIG. 5a shows the initial value setting mode, that is, the seat A in FIG. 2 is set to the optimal frontmost position and rearmost position according to the physique of the occupant before traveling. This is a mode for reading each displaced position at that time into the control means G shown in FIG.

First, in step _P1 , an initial displacement value is set. Here, Smax and Smin indicate the maximum and minimum values of the displacement amount of the seat, and N is the number of counts when calculating the average vehicle speed.
V _T indicates the sum of speeds when determining the average vehicle speed.

In P ₂ , is the initial value setting switch ON?
It is checked whether it is OFF. This is to check whether or not it is necessary to set the initial value.When it is OFF, it is assumed that the initial value setting has already been completed, and the process moves to the control mode terminal in Figure 5b. . When it is ON, the initial value is not set, and the optimum initial value for the passenger who will be on board from now on will be set.

Setting of the initial value begins when an occupant gets on seat A in FIG. 2 and takes a driving position by grasping a steering wheel (not shown). In this case, since the initial value is set while moving the seat A in FIG. 2 back and forth, the condition is that the vehicle is in a stopped state. Therefore, at P ₃ , the instantaneous vehicle speed Vn is read by the vehicle speed detection means D in FIG. 2 at P ₃ a, and at P ₃ b, for example,
10 counts are made, and at P ₃ c, the sum of the speeds V _T is determined to determine the average vehicle speed Vn,
After checking at P ₃ d whether the count is the predetermined 10 times or not, at P ₃ e the average vehicle speed Vn (=V _T /10) is determined.
is required. Note that if the count number is less than the predetermined 10 times at P ₃ d, the process returns to step P ₃ a. In this way, Vn is determined in _P3 , and it is checked in _P4 whether or not the initial value can be set. In other words, check whether the vehicle speed Vn is 0 or not, and Vn=
If it is 0, the vehicle is stopped, so we move on to setting the initial value. On the other hand, if Vn is not 0,
Even though the initial value setting switch is turned on, the vehicle is already in the running state, so it is inappropriate to set the initial value, so in _P5 ,
The three-way control 26 in FIG. 2 is turned OFF to stop the control, and as a result, the vehicle travels with the seat A in FIG. 2 fixed.

On the other hand, at _P6 via the terminal, reading is performed to set the initial value when the initial value setting switch is ON and the conditions of vehicle speed Vn=0 are satisfied. This setting begins by moving the seat A in FIG. 2 back and forth significantly in the driving position described above. In other words, the Mikata Kotoku 2 in Figure 2
6 is controlled to be open to the atmosphere, thereby
The drive cylinder 17 is in a telescopic state, and
Seat A is movable, and in this case, the forward movement of seat A is for when driving at low speed (V ₃ in Figure 6). The system determines the optimal driving position for low-speed driving. The seat position selected according to the driving posture is the limit at which seat A can be moved forward, and the actual displacement amount Sx in this case is the minimum displacement amount Smin
is read through the seat displacement amount detection means C shown in FIG. On the other hand, the maximum displacement amount Smax during high-speed running (V ₂ in FIG. 6) is also read in the same manner as above.

The Smin and Smax values read in this way are
Settings cannot be completed by reading the actual displacement amount Sx once, but as shown in P ₇ to _{P 10} , based on the actual displacement amount Sx due to seat movement, the Sx is determined by the maximum displacement amount Smax and the minimum displacement amount Smin. If they are larger or smaller, respectively, Smax and Smin are rewritten.

On the other hand, when the initial value setting switch is turned off in FIG. 5a, the terminal shifts to the terminal shown in FIG. 5b, and the control mode for running is entered.

In this control mode, at P ₁₂ , the average vehicle speed
Vn is required. This average vehicle speed Vn is determined by reading Vn by the vehicle speed detecting means D shown in FIG. 2, as in the case of setting the initial value.
Now move to terminal P ₁₃ and in this step:
A preset SV table, or
The displacement setting value Sn for the average vehicle speed Vn is determined by the formula S=f(V). For example, when using the formula S=f(V) shown in Figure 6, S on the vertical axis corresponds to a point on the setting curve _X1 corresponding to Vn on the horizontal axis.
The value is Sn. Here, Smax and Smin in FIG. 6 are the maximum and minimum values of the seat displacement amount set by the occupant in the initial value setting mode, and V ₂
and V ₃ are vehicle speeds corresponding to Smax and Smin, respectively. Further, S ₁ indicates a limit value beyond which the seat A in FIG. 2 cannot move further rearward due to its structure.

In this way, in P ₁₃ , Sn corresponding to the average vehicle speed Vn at that time is obtained, and in P ₁₄ , the displacement allowable curve described later that has already been set corresponding to Vn is obtained.
Based on X ₂ (Fig. 6), the allowable displacement Sα at vehicle speed Vn is read. After reading this Sd, in steps P ₁₅ to P ₁₈ ,
Setting changes are made.

That is, in the above setting, since Smin and Smax are the seat displacement amounts, the corresponding vehicle speed is such that V ₃ in FIG. 6 is the low speed limit and V ₂ is the high speed limit. In this case, if _the vehicle speed corresponds to between V ₃ and _{V 2} , the value of Sn can be determined as an appropriate range using the above table or formula;
When the speed is higher than V ₂ , the Sn value for those vehicle speeds will be the above set value, that is, smaller than Smin and larger than Smax. A cannot be kept within the optimal range of Smax and Smin as set. As a result, there is a risk that the driving position may become inappropriate. To prevent such an inappropriate driving position, Smax or Smin is given as the Sn value for the above special vehicle speed, and the vehicle speed is V ₃
~ Even if the vehicle is outside the range of _V2 , it is possible to always maintain an appropriate driving position regardless of the vehicle speed.

The control mode starting at the terminal in FIG.
Seat A in the figure is displaced by the control shown in Figure 5b, and it is checked whether the displacement is permissible according to the settings. If it is not permissible, the movement of seat A, that is, the correction is carried out. This is the mode for

That is, the seat A moves in accordance with the Sn value set for the vehicle speed Vn, but the actual seat position after the movement is first read as the actual displacement amount Sx at _P19 . In FIG. 6, this Sx is Sx ₁ ,
The value will be either Sx ₂ or Sx ₃ . Sx ₁ is
Lower than the value indicated by the setting curve X ₁ , Sx ₂ is higher than the value indicated by the tolerance curve X ₂ , and Sx ₃
means that it is an intermediate value shown by both curves X ₁ and X ₂ , and in this case, first, P ₂₀ (Figure 5 c)
Then, whether or not Sn−Sx>0, that is, whether Sx is larger (Sx ₂ or Sx ₃ ) or smaller (Sx ₁ ) than the set value Sn.
is confirmed. If Sx is larger than Sn,
In P ₂₁ (Fig. 5 c), it is checked whether Sx is within the allowable value, that is, whether the above Sx is ₃ , and if Sx is ₃ , the actual displacement is allowed. Therefore, at P ₂₂ (Fig. 5 c), turn off the three-way lock 26 in Fig. 2, and then P ₂₃ (Fig. 5 c)
So, with the compressor 25 in Figure 2 also turned off,
Control over the vehicle speed Vn is completed.

On the other hand, when Sx exceeds the allowable value Sα,
If it is at Sx ₂ , a correction is made to move seat A in Figure 2 forward. This correction is made at P ₂₆ in Figure 5c.
While opening the three-way compressor 26 (Fig. 2) to the atmosphere, at P ₂₇ , turn on the compressor 25 (Fig. 2).
By turning OFF, the return spring 18
(Fig. 2) retracts the drive cylinder 17 (Fig. 2) to move seat A (Fig. 2) forward.

After this correction, like the terminal in Figure 5c,
At _P19 , the actual displacement amount Sx is read again and it is confirmed in a repeating loop whether the correction has been appropriately performed. In this way, it usually stabilizes from Sx ₂ to Sx ₃ in Figure 6,
Control is complete. On the other hand, if Sx is smaller than Sn, that is, Sx ₁ in FIG. 6, it is necessary to correct it to Sx ₃ . This correction is
At P ₂₄ in Figure 5c, compressor 25 (Figure 2)
Turn on, turn on P ₂₅ , and turn on Mikata Kotoku 26 (Fig. 2).
By setting the ON (communication) state, the drive cylinder 17 shown in FIG. 2 is extended and the seat A is controlled to move rearward.
This will be corrected from Sx ₁ to Sx ₃ , providing a more appropriate driving posture. In this case as well, reconfirmation after correction is performed as shown by the terminals in FIG. 5c.

Therefore, the initial value setting mode shown in FIG. 5a ensures that the seat moves within a range commensurate with the occupant's physique, and the
and c, by controlling the seat to move back and forth in accordance with the vehicle speed, the occupant can
While maintaining a comfortable posture, the vehicle's posture always adapts to the speed of the vehicle.In other words, when driving at low speeds, the vehicle maintains a normal upright posture, and as it moves to high speeds, it automatically shifts to a leaning forward position. This enabled optimal driving.

(Effects of the Invention) As explained above, according to the present invention, there are provided a seat moving means for moving a seat in the longitudinal direction, a seat displacement amount detecting means for detecting the amount of displacement of the moving seat, and a traveling speed of the vehicle. vehicle speed detection means for detecting the vehicle speed; and initial value setting means for setting, when the vehicle is stopped, a seat movement position selected by an occupant when riding at low speed and a seat movement position selected for high speed driving as initial values. and a control means for moving the seat to the respective set positions according to the vehicle speed within the range set by the initial value setting means, so that the occupant can always maintain a comfortable posture and adjust to the optimal posture for each vehicle speed. As a result, the occupants do not get tired, and there is no need to change their sitting position according to the vehicle speed.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing the configuration of the present invention, FIG. 2 is a system diagram showing an embodiment of the present invention, and FIG. 3 is a bottom view of the seat support device along the line shown in FIG. 2.
FIG. 4 is a sectional view of the seat support device along the line of FIG. 2, and FIG. 5 is a flowchart of which FIG.
is the mode for initial value setting, Figure 5 b and c
6 shows the control modes, and FIG. 6 is an explanatory diagram showing the relationship between the vehicle speed and the amount of seat displacement. A... Seat, B... Seat moving means, C... Seat displacement detection means, D... Vehicle speed detection means, E... Initial value setting means, G... Control means.

Claims (1)

[Claims] 1 Seat moving means for moving the seat in the longitudinal direction, seat displacement detection means for detecting the amount of displacement of the moving seat, vehicle speed detection means for detecting the traveling speed of the vehicle, an initial value setting means that sets the seat position selected for each time and the seat movement position selected for high-speed driving as initial values when the vehicle is stopped; A vehicle seat position adjustment device comprising: control means for moving the seat to respective set positions according to the vehicle seat position adjusting device.