JPH0717311A - Power seat device - Google Patents

Abstract

PURPOSE:To provide a power seat device, which can automatically move a seat at the predetermined time so as to provide the optimum seat position for a driver. CONSTITUTION:A power seat device 1 is provided with a controlling means 7, which supplies electric current to a seat moving means 3 on the basis of an adjusting amount set by adding the predetermined value to a present position data stored in a position storing means 8 so as to move a seat 2 when a seat moving signal generated from a timer means 6 is inputted at the predetermined time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power seat device used for automatically moving a seat.

[0002]

2. Description of the Related Art As a power seat device for automatically moving a seat, a current position of the seat is stored in a controller by performing a setting operation at a position of the seat moved by a driver, and then the seat is moved. When the occupant performs a return operation from the position changed, the seat is automatically moved to the set position stored in the controller to restore the seat position suitable for the driver.

[0003]

In the above-mentioned conventional power seat device, the seat position at the time of the driver's operation is stored, and the seat position suitable for the driver is restored by returning to the stored position. Yes, the stored seat position did not fluctuate over time. It has been medically proven that the sitting height of humans is slightly shorter in the afternoon than in the morning. Then, due to the short seat height, the position of the steering wheel, the field of view in the rearview mirror, or the field of view in the side mirror may not match the driver's seat. There is a problem that it is troublesome because it is necessary to adjust the position, the position of the rearview mirror, and the position of the side mirror, one by one, and there is a problem of saving trouble for the driver.

[0004]

An object of the present invention is to provide a power seat device according to the present invention.
An object of the present invention is to provide a power seat device capable of giving an optimum seat position to a driver by automatically moving a seat at a predetermined time.

[0005]

[Constitution of the invention]

[0006]

A power seat device according to the present invention comprises a seat, a seat moving means for lifting or lowering the seat, and a seat switch for connecting a power source to the seat moving means by an operation of an occupant.
Sheet position detecting means for detecting the current position of the sheet by the current position data by the number of counts from a predetermined base point, time measuring means for detecting time and generating a sheet movement signal at a predetermined time, and sheet position detection Adjustment having a position storing means for storing the count number of the means, and adding a predetermined value to the current position data stored in the position storing means when there is a sheet movement signal generated from the time counting means An adjustment amount set by subtracting a predetermined value from the current position data stored in the position storage means when a current is supplied to the sheet movement means based on the amount and the sheet movement signal from the timing means disappears. And a control means having a drive means for supplying a current to the sheet moving means based on the above. In the aspect, the time measuring means is to generate the seat movement signal when the time is from am to pm, and in another embodiment which is adopted as needed, the time measuring means is to generate the seat moving signal when the time is from am to pm A sheet movement signal is generated, and the sheet movement means is configured to lift up the sheet by an adjustment amount obtained by adding a predetermined value to the current position data according to the generated sheet movement signal, and another embodiment adopted as necessary. In the above, the time measuring means generates a seat movement signal when the ignition switch is turned on after the time has changed from am to pm, and the seat moving means adds the predetermined value to the current position data by the generated seat movement signal for adjustment. It is possible to lift up the seat by the amount.

[0007]

In the power seat device according to the present invention, the timing means generates a seat movement signal at a predetermined time. When the sheet movement signal is generated, the control means supplies a current to the sheet movement means based on the adjustment amount set by adding a predetermined value to the current position data stored in the position storage means. The seat is automatically moved at a predetermined time.
Therefore, it is not necessary to adjust the position of the steering wheel, the position of the rearview mirror, and the position of the side mirror even if the time changes.

[0008]

1 and 2 show an embodiment of a power seat device according to the present invention. FIG. 1 is an overall block diagram of the power seat device, and FIG. It is a time chart to do.

The illustrated power seat device 1 mainly comprises a seat 2, a seat moving means 3, a seat switch 4,
The control unit 7 includes a seat position detection unit 5, a time counting unit 6, and a control unit 7. The control unit 7 has a position storage unit 8 and a driving unit 9 built in a microcomputer 10.

An output end of the sheet moving means 3 is connected to the sheet 2, and the sheet moving means 3 incorporates a motor and a seat lifting mechanism. When the motor of the sheet moving means 3 is supplied with a current on the positive side or the reverse side, the sheet elevating mechanism is operated, so that the sheet 2 is lifted up or down.

The seat switch 4 is composed of an up switch, a down switch and a set switch. When the up switch is turned on, a current on the positive side is supplied from the control means 7 to the seat moving means 3 and the down switch is turned on. When operated, a current on the opposite side is supplied from the control means 7 to the sheet moving means 3. The set switch is used when the position storage means 8 of the control means 7 stores the seat position and when the seat position stored by the position storage means 8 is restored.

The sheet position detecting means 5 is a counter whose count number increases as the sheet 2 is moved to the lift-up side and the lift-down side, and the sheet 2 is detected by the count number from a predetermined base point position. The current position of is detected as current position data. The current position data detected by the count number from the base point position is transferred to the microcomputer 10 of the control means 7 at any time.

The clock means 6 detects the time, and generates a seat movement signal when the time changes from am to pm, and does not generate a seat movement signal when the time changes from pm to am. This sheet movement signal is also transferred to the microcomputer 10 of the control means 7. Since the timekeeping means 6 is directly connected to the battery of the vehicle, even if the ignition switch 11 described later is turned off, the supply current does not disappear and the operation continues.

An ignition switch 11 is also connected to the control means 7 containing the microcomputer 9, and the ignition switch 11 is turned on when the vehicle is used by the driver and the vehicle is being used. In the meantime, it keeps on. When the ignition switch 11 is turned on, the on signal of the ignition switch 11 is transferred to the microcomputer 10 of the control means 7, and the control means 7 starts the control operation.

On the other hand, in the control means 7, a microcomputer 10 is provided with a position storage means 8 and a drive means 9.

The position storage means 8 is a memory (RAM) exclusively for writing and calling at any time, and stores the count number generated by the sheet position detecting means 5 at any time, and the stored count number is predetermined in the microcomputer 10. The amount of movement of the sheet 2 is determined by the number of displacements from the base point position by comparison with the base point position and the compared count value. Here, when the ignition switch 11 is turned on and the sheet movement signal is generated from the timing means 6, the control means 7 compares the count number of the sheet position detection means 5 and the base point position at that time with the microcomputer 10. A preset numerical value is added to the displacement number obtained by to set an adjustment value, and a drive signal is sent to the drive means 9 at a time based on the set adjustment value.

When the ignition switch 11 is turned on and the sheet movement signal is not generated from the timing means 6, the control means 7 causes the microcomputer 10 to count the number of seat position detection means 5 and the base point position. A preset numerical value is subtracted from the displacement number obtained by the comparison with to set an adjustment value, and a drive signal is sent to the drive means 9 at a time based on the set adjustment value.

The driving means 9 supplies the electric current of the power source to the sheet moving means 3 in response to the drive signal sent thereto, so that the motor of the sheet moving means 3 is rotated to the lift-up side or the lift-down side to move the sheet 2 by a predetermined amount. Just lift up or down.

The power seat device 1 having such a structure operates as shown in FIG.

The seat 2 is set to a seat position suitable for the driver by turning on the seat switch 4 in the morning, and the control means 7 stores the number of displacements from the base position as the seat 2 moves. ing.

5 pm after the time is from morning to afternoon
At this time, when the driver gets in the vehicle and turns on the ignition switch 11, the control means 7 has an ON signal from the ignition switch 11 and a seat movement signal from the timekeeping means 6 because the time is in the afternoon. As a result, a predetermined numerical value is added to the stored displacement number to set an adjustment value, and a drive signal is sent to the drive means 9 at a time based on the set adjustment value. Supplies the current of the power source to the sheet moving means 3.

Since the sheet moving means 3 supplied with the current rotates the motor to the lift-up side, the sheet 2 is lifted up to a position slightly higher than the position set in the morning and stopped at that position.

When the driver sits on the seat 2 and turns on the ignition switch 11 in order to use the vehicle in the afternoon, the seat height of the driver becomes shorter than that in the morning, and the seat 2 corresponds to the seat height. Is automatically lifted up slightly and will be operated without adjusting the position of the steering wheel, rearview mirror and side mirrors.

When the time is changed from afternoon to morning, the seat movement signal is not generated. Therefore, the control means subtracts a predetermined numerical value from the stored displacement value to set the adjustment value, and the set adjustment value is set. Since the drive signal is sent to the drive means 9 at a time based on the value, the drive means 9 supplies the current of the power source to the sheet moving means 3. Since the sheet moving means 3 supplied with the current rotates the motor to the lift-down side, the sheet 2 is lifted down to a position slightly lower than the position set by the adjustment value and stopped at that position.

[0025]

As described above, since the power seat device according to the present invention has the above-described structure, the position of the steering wheel, the position of the rearview mirror, and the position of the side mirror are individually adjusted even when the time changes. Since there is no need to make adjustments, it is possible to save the trouble of the driver and to provide an optimal seat position to the driver.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of an embodiment of a power seat device according to the present invention.

FIG. 2 is a time chart for explaining the operation of the power seat device shown in FIG.

[Explanation of symbols]

 1 power seat device 2 seat 3 seat moving means 4 seat switch 5 seat position detecting means 6 timing means 8 position storing means 9 driving means 10 control means

Claims (4)

[Claims] 1. A seat, a seat moving means for lifting or lowering the seat, a seat switch for connecting a power source to the seat moving means by an operation of an occupant, and a current position of the seat counting from a predetermined base point. In addition to having a sheet position detecting means for detecting the current position data by a number, a time measuring means for detecting a time and generating a sheet movement signal at a predetermined time, and a position storing means for storing the count number of the sheet position detecting means. When a sheet movement signal generated from the timing means is present, a current is supplied to the sheet movement means based on an adjustment amount that is set by adding a predetermined value to the current position data stored in the position storage means. When the seat movement signal is no longer generated from the time measuring means, the current position data stored in the position storing means is predetermined. Power seat apparatus characterized by based on the adjustment amount set by subtracting a value and a control means having a drive means for supplying current to the sheet moving means. 2. The power seat device according to claim 1, wherein the timekeeping means generates a seat movement signal when the time is from morning to afternoon. 3. The timekeeping means generates a seat movement signal when the time changes from am to pm, and the seat movement means generates a seat with an adjustment amount obtained by adding a predetermined value to the current position data. Lifting up 1.
The power seat device according to 1. 4. The timekeeping means generates a seat movement signal when the ignition switch is turned on after the time has changed from am to pm, and the seat movement means generates a predetermined value for the current position data according to the generated seat movement signal. The power seat apparatus according to claim 1, wherein the seat is lifted up by an adjustment amount obtained by adding