JPH0433136Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention provides an automobile seat that has a function of adjusting the state of a seat support device provided to support the seating posture of an occupant. relating to an adjustment device.

(Prior art) In recent years, the value added of automobiles has been promoted, and along with this, automobile seats are also equipped with side panels that can adjust the strength and weakness of the amount of support in the lateral direction of the seat back and seat cushion. Seat support devices such as port adjusters, thigh support adjusters that can adjust the amount of support for the occupant's thighs, and lumbar support adjusters that can adjust the amount of support for the occupant's lower back are often installed. I'm getting used to it.

(Problem to be solved by the invention) The amount of support provided by each adjuster as described above is adjusted arbitrarily by the occupant according to his/her physique, preference, driving method, etc. In the case of a seat support device such as a support adjuster, the amount of support greatly affects the ease with which a passenger can get on and off the vehicle. However, conventional seat support devices are configured so that the amount of support is adjusted by the occupant himself/herself, which makes it troublesome to adjust the amount of support each time the passenger gets on and off the vehicle. There was a problem that if neglected, the ease of getting on and off would be sacrificed. Further, in the case of seat support devices such as the side support adjuster and the thigh support adjuster, it is desirable to finely adjust the amount of support thereof depending on the driving condition of the vehicle. That is, when considering a side support adjuster, for example, it is desirable to increase the amount of support when driving on a mountain road or the like, and to decrease the amount of support when reversing the vehicle to park in a garage or the like. However, in reality, it is very troublesome to perform such adjustment operations frequently, and there is a possibility that the support adjustment function is not effectively utilized.

The present invention was developed in view of the above circumstances, and its purpose is to provide an adjustment device for an automobile seat that allows a seat support device for supporting the seating posture of an occupant to function effectively without any troublesome operations. It is on offer.

[Structure of the invention] (Means for solving the problem) The invention provides a position detection device installed to detect the shift position of an automatic transmission, and also supports the seating posture of the occupant. The configuration includes a control device that changes the amount of support provided by the seat support device to a state corresponding to the shift position indicated by the detection output of the position detection device.

(Function) When the shift position of the automatic transmission is changed, the control device determines the amount of support provided by the seat support device based on the output from the position detection device that detects this, and the amount of support provided by the seat support device is indicated by the detected output. Change the state according to the shift position. Therefore, if the state of change in the amount of support is previously set in accordance with the shift position, the seat support device can function effectively without any troublesome operations.

(Example) In FIG. 1 showing the electrical configuration, 1 is a shift position switch which is a position detection device;
This outputs the parking signal Sa when the automatic transmission of the car is placed in the parking position, and also outputs the parking signal Sa when the automatic transmission is placed in the reverse position, neutral position, drive position, and second position. , a reverse signal Sb, a neutral signal Sc, a drive signal Sd, a second signal Se, and
It is configured to output a low signal Sf. 2
is a seat support device, such as a side support adjuster, which displaces the side portions of the seat back and seat cushion in the longitudinal and vertical directions, respectively, to support the driver's seating posture.The amount of displacement, that is, the amount of support For example, the size can be adjusted electrically. Reference numeral 3 denotes a power switch, and when it is turned on, the side support adjuster 2 is switched to an operable state. 4 is a position sensor that detects the support amount of the side support adjuster 2 and sends a position data signal indicating the detected support amount.
It is configured to output Sg.

Now, 5 is a control circuit including a CPU,
Reference numeral 6 denotes a drive circuit that drives the side support adjuster 2 to change the amount of support thereof based on the output from the control circuit 5.
and the drive circuit 6 to form a control device 7 in the present invention.
is configured. The control circuit 5 receives a parking signal from the shift position switch 1.
Sa, a reverse signal Sb, a neutral signal Sc, a drive signal Sd, a second signal Se, a low signal Sf, a position data signal Sg from the position sensor 4, and an on signal Sh output from the power switch 3 in its on state. Each of the above signals Sa, Sb, Sd, Se, Sf, Sg, Sh
The support amount of the side support adjuster 1 is determined by the drive circuit 6 based on a pre-stored program.
It is now controlled through. In this case, the position data signal Sg is used as a signal for feedback controlling the amount of support provided by the side support adjuster 1.

In addition, 8 is a manual adjustment device operated by the driver.
This is provided to adjust the amount of support provided by the side port adjuster 2 according to the driver's physique, preference, etc. The above-described adjustment by the manual adjustment device 8 is performed through the control circuit 5, and the control circuit 5 stores the support amount at this time as a standard support amount to be described later.

FIG. 2 shows an outline of the control contents by the control circuit 5 that are directly related to the gist of the present invention, and will be described below.

That is, the control circuit 5 first determines whether or not the on signal Sh is input (step #1), and
When the judgment is “Yes”, that is, the power switch 3
The process moves to the next step #2 only when it is turned on. In this step #2, it is determined whether the neutral signal Sc or the drive signal Sd is input, that is, whether the automatic transmission is in the neutral position or the drive position, and the determination result is When "Yes", the amount of support by the side support adjuster 1 is adjusted to the standard state (step #3).

When the control circuit 5 determines "NO" in the determination step #2, the control circuit 5 outputs the parking signal Sa.
Or whether the reverse signal Sb is input or not.
In other words, it is determined whether the automatic transmission is in the parking position or the reverse position (step #4), and if the determination result is "Yes", the amount of support by the side support adjuster 1 is set to the standard Adjust to a looser state (step #5).

When the control circuit 5 determines "NO" in the determination step #4, it determines whether the second signal Se is input, that is, whether the automatic transmission is in the second position. (Step #6) If the result of the determination is "Yes", the amount of support by the side support adjuster 1 is adjusted to a tighter state that is larger than the standard state (Step #7).

When the control circuit 5 determines "NO" in the determination step #6, it determines whether the low signal Sf is input, that is, whether the automatic transmission is in the low position ( Step #8), the judgment result is “Yes”
At this time, the amount of support by the side support adjuster 1 is adjusted to a state that is further increased by the tight state (step #9). still,
When it is determined "NO" in step #8, the process returns to step #1.

In short, according to the above configuration, when the automatic transmission is put into the drive position and the neutral position, that is, when the shift position used during normal driving is selected, the side support adjuster 1 However, when the automatic transmission is put into the second position or low position, the shift position that is often used when driving on mountain roads, etc. When the side support adjuster 2 is selected, the support amount of the side support adjuster 2 is automatically changed to a tighter state, which is increased from the standard state, and as a result, the support by the side support adjuster 2 is increased. The amount is automatically adjusted depending on the driving condition of the vehicle. In addition, when the automatic transmission is placed in the parking position, that is, when the shift position is selected when the occupant exits the vehicle, the side support adjuster 2 is in the standard state. It is automatically changed to a looser state, making it easier for passengers to get on and off the vehicle. Furthermore, when the automatic transmission is placed in the reverse position, that is, when the shift position used to move the vehicle backwards is selected, the side support adjuster 2 is in the same loose state as described above. This allows the driver to easily twist his or her body to check behind the vehicle when parking the vehicle or the like.

In the above embodiment, the side support adjuster 2 was used as the seat support device, but
The present invention is not limited to this, and for example, the thigh support adjuster or other adjuster may be included in the target.

[Effects of the Invention] According to the present invention, as is clear from the above description, in an adjustment device for an automobile seat equipped with a seat support device in which the amount of support can be adjusted,
This provides an excellent effect of allowing the seat support device to function effectively without any troublesome operations.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a block diagram of the electrical configuration, and FIG. 2 is a block diagram of the electrical configuration.
The figure is a flowchart showing an outline of control contents. In the figure, 1 is a shift position switch (position detection device), 2 is a side support adjuster (seat support device), 5 is a control circuit, 6 is a drive circuit, and 7 is a control device.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A seat support device that is provided to support the seating posture of an occupant and whose support amount can be adjusted in size, and a seat support device that detects the shift position of an automatic transmission. An automobile seat comprising: a position detection device; and a control device that changes the amount of support by the seat support device to a state according to a shift position indicated by a detection output of the position detection device. adjustment device. 2. The utility model registration claim 1, characterized in that the control device is configured to reduce the amount of support provided by the seat support device when the position detection device detects the parking position and the reverse position. Automobile seat adjustment device.