KR19980066748U - Adjusting device of the car seat - Google Patents

Abstract

The present invention relates to a control device for an automobile seat, in particular, a start switch; A key input unit arranged in a matrix form for inputting a driver's sitting key; A sheet position detection unit for detecting a sheet position divided into a plurality of levels; An analog-digital converting unit converting the analog position signal generated from the seat position detecting unit into a digital signal; A counting unit for counting a predetermined time; A first memory for storing a position value of a seat corresponding to a sitting key of the driver; A second memory for storing a sheet position value currently fixed according to a storage command by the key input unit; A motor driving part for driving the motor in forward rotation and reverse rotation; And reading the sheet position data stored in the second memory when there is no key input signal during a predetermined time counting of the counting unit, controlling the motor driving unit according to the sheet data of the second memory, and performing a predetermined counting key of the counting unit. And a control unit for reading data of an address corresponding to a key input signal received from the first memory when the input signal is received, and controlling the motor driving unit according to the sheet position data of the first memory. .

Description

Adjusting device of the car seat

The present invention relates to a vehicle seat adjustment device, and in particular, by automatically adjusting the position of the seat (Seat) according to the driver's height data, in particular, the input of the sitting key, a car that provides a more flexible and simple seat adjustment device It is related with the adjustment apparatus of a sheet.

In general, different body types require drivers to set the seat position to suit their body shape before driving. This action allows the driver to drive in a comfortable position.

In the well-known prior art, two rails are installed parallel to the lower part of the seat, and the seat is adjusted to move forward and backward on the rail by operating a manual lever installed at the lower part of the seat. This mechanical seat adjuster requires the driver to manually move the seat to a position suitable for his body shape, which has been cumbersome for the driver.

An electronically controllable electronic seat adjustment device has been devised to improve the mechanical seat adjustment device as described above, and a schematic description of the improved seat adjustment device will be described below. See 5911.

1 is a block diagram illustrating a conventional automobile seat adjusting apparatus, and as shown, a constant voltage circuit 2 for maintaining a voltage of a battery 1 at an accurate reference voltage, a start switch IGSW, and a start switch. A buffer 4 connected to one end of the IGSW, a key position switch KSW for detecting whether the start switch IGSW is in contact, and a detector for detecting a signal generated through the key position switch KSW. (6), a selection switch section 8 composed of a plurality of switches SW1, SW2, and SW3 for selecting the seat position, a memory switch 10 for storing the seat position set at the initial setting, and a vehicle speed Speed detection unit 12 for detecting the position, potentiometer 14 for detecting the seat position, reclining position unit 16 for detecting the inclination of the seat assembly (backrest), potentiometer 14 and reclining position unit 16 The analog signal detected by the There may be an operation of the selection switch section 8 when the analog-digital converting section 18 and two or more switches of the plurality of switches SW1, SW2, and SW3 are simultaneously pressed, and when the vehicle speed is above a certain speed. In this case, the alarm driver 22 for driving an alarm through the buzzer 20, the relay unit 24 to which the seat forward and backward motor M1, the seat assembly tilt angle motor M2 are connected, and the slider switch ( A relay driver 30 to which a SLSW 26 and a reclining switch (RLSW) 28 are connected, an oscillator 32 for providing a clock signal, and the plurality of inputs 2, 4, 6, 8, and 10; And a control unit 34 for controlling the output units 22 and 30 in response to the signals supplied from and 12, 18 and 32.

Referring to the operation of the prior art configured as described above as follows.

Referring to Fig. 1, in the conventional seat adjusting apparatus, the length of the rail is divided into 256 equal parts. Thus, when calculating the maximum travel distance of the sheet to 40 cm, one equal travel distance is about 1.7 mm. In order to calculate the position of the sheet moving on the rails divided in this manner, the potentiometer 14 changes the resistance value in association with the sheet forward and backward so that the resistance value is set differently in each section. Therefore, in the state where the sheet is fixed, the potentiometer 14 detects a current value corresponding to the sheet position according to the Ohm rule. On the other hand, the reclining position unit 16 measures the inclination of the seat assembly (backrest).

In order for the potentiometer 14 and the reclining position sensor 16 to function properly, the starter switch IGSW is operated. If the ignition key is removed from the key holder, the control unit 34 controls the relay driver 30 so that the relay unit 28 reversely rotates the motor M1 for forward and backward seats. Therefore, the seat is reversed to the maximum on the steering wheel side to the maximum, and the seat position at this time becomes the initial position.

On the other hand, if the ignition key is inserted into the key holder and started, the detection unit 6 receives the ignition detection signal generated by the key position switch KSW and transmits it to the control unit 34.

Then, the controller 34 determines whether the start switch IGSW is in contact with the start detection signal, and then determines whether the signal selected from the selection switches SW1 to SW3 8 is input.

Subsequently, the input signal of the memory switch 10 is checked to determine whether data information regarding the sheet position is stored at a specific address position of the memory device built in the controller 32. If there is stored sheet position information, the control unit 34 drives the relay driving unit 30, and in turn, the relay unit 28 operates to rotate the motor M1 forward. Thus, the sheet is moved to a position corresponding to the sheet position information described above.

As described above, when the seat position is to be memorized, the slider switch 26 is switched to the manual position, and then the switch is pressed to manually adjust the seat to a position suitable for operation according to the rotation of the motor M1. The seat movement stops and the machine switches to automatic mode.

When the memory switch 10 is pressed in the state where the position of the sheet is properly adjusted as described above, the control unit 34 calculates the position signal of the sheet detected by the potentiometer 14 and stores it in the memory.

On the other hand, in order to prevent a malfunction, the control unit 34 detects this error when two or more of the selection switches SW1 to SW3 are pressed at the same time, the sheet operation switch is being operated, and the sheet position is being corrected. Next, the alarm driving unit 22 is driven to generate an alarm sound through the buzzer 12.

The description of the operation of the seatback assembly (backrest) is similar to the positioning of the seat, and will be omitted here as it departs from this subject.

Although the improved prior art described above provides a solution for electronically controlling seat positioning, a rather complicated procedure must be followed each time a suitable seat position is memorized for the driver.

The purpose of the present invention is to solve the above-mentioned inconvenience, the automobile seat to provide a more flexible, simple seat adjustment device by automatically adjusting the position of the seat (Seat) in accordance with the driver's height data, in particular, the input of the sitting key To provide a control device.

The apparatus of the present invention to achieve the above object is a start switch; A key input unit arranged in a matrix form for inputting a driver's sitting key; A sheet position detection unit for detecting a sheet position divided into a plurality of levels; An analog-digital converting unit converting the analog position signal generated from the seat position detecting unit into a digital signal; A counting unit for counting a predetermined time; A first memory for storing a position value of a seat corresponding to a sitting key of the driver; A second memory for storing a sheet position value currently fixed according to a storage command by the key input unit; A motor driving part for driving the motor in forward rotation and reverse rotation; And reading the sheet position data stored in the second memory when there is no key input signal during a predetermined time counting of the counting unit, controlling the motor driving unit according to the sheet data of the second memory, and performing a predetermined counting key of the counting unit. And a control unit for reading data of an address corresponding to a key input signal received from the first memory when the input signal is received, and controlling the motor driving unit according to the sheet position data of the first memory. .

1 is a block diagram illustrating a conventional automobile seat adjusting apparatus.

Figure 2 is a block diagram for explaining the vehicle seat adjustment apparatus according to the present invention.

Figure 3 is a flow chart for explaining the vehicle seat adjustment apparatus according to the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

2 is a block diagram for explaining a seat adjustment apparatus according to the present invention, as shown, a start switch IGSW, a key input unit 1 arranged in a matrix form for inputting a driver's sitting key, A sheet position detection unit 2 for detecting a sheet position divided into a plurality of levels, an analog-digital conversion unit 4 for converting an analog position signal generated from the sheet position detection unit 2 into a digital signal, and a predetermined time A counting unit 6 for counting, a first memory 8 for storing the position value of the seat corresponding to the driver's seated key, and a seat position value currently fixed according to a storage command by the key input unit 1; A second memory 10 for storing, a display unit 12 for displaying the decompression data input through the key input unit 1, and a motor driving unit 14 for driving the motor M in forward and reverse rotations. ) And keying for a predetermined counting time of the counting section 6 When there is no signal, the sheet position data stored in the second memory 10 is read out, the motor driving unit 14 is controlled according to the sheet data of the second memory 10, and the key is counted for a predetermined counting time. Control unit for reading the data of the address corresponding to the key input signal received from the first memory 8 when the input signal is received, and controls the motor drive unit 14 according to the sheet position data of the first memory 8 It consists of (16).

The overall operation of the preferred embodiment configured as described above will be described with reference to FIG. 3.

Referring to Fig. 2, in the seat adjustment apparatus of the present invention, the control unit 16 determines whether the start switch is turned on (step 10). If the start switch is turned on, the seat position detecting unit 2 detects current seat position information, and the detected analog position signal is converted into a digital signal by the analog-digital converting unit 4 and supplied to the control unit 16. The controller 16 calculates the digital data provided by the analog-digital converter 4 to determine the current seat position. At the same time that the start switch is turned on under the control of the controller 16, the counting unit 6 performs a counting operation for a predetermined time (Twelfth Step).

In the present invention, the movement distance of the sheet is divided into a plurality of levels, and in order to calculate the position of the sheet, the sheet position detection unit 2 changes the resistance value in association with this in advance and backward movement of the sheet so that the resistance value is set differently in each section. do. Therefore, the sheet position detecting unit 2 detects the current value corresponding to the sheet position in accordance with the law of Ohm while the sheet is fixed.

In the twelfth step, it is checked whether a new key signal is generated from the key input unit 1 within the counting time of the counting unit 6 (step 14).

As a result of the determination in step 14, when no new key signal is generated, the controller 16 reads out prestored position data from the predetermined address position of the second memory 10 (step 16).

Subsequently, the control unit 16 generates a control signal for calculating the position data read out from the second memory 10 and moving the sheet to the previously stored position. Therefore, in response to this control signal, the motor drive unit 14 rotates the seat forward and backward motor M forward or reverse to adjust the position of the seat.

On the other hand, if a new key signal is generated as a result of the determination in step 14, the controller 16 generates an address corresponding to the key signal (step 20), and a position stored at the address from the first memory 8. Read the data (step 22).

Subsequently, the controller 16 calculates the current position data detected in the twelfth step and the position data read out in the twenty-second step, and generates a control signal for moving the sheet to the resulting new position. Therefore, in response to this control signal, the motor drive unit 14 rotates the seat forward and backward motor M forward or reverse to adjust the position of the seat.

In the present invention, the memory operation of the seat position will be described. First, the key input unit 1 is provided with a plurality of matrix buttons 1-9 and a plurality of memory buttons (not shown). Therefore, when the driver presses a numeric key corresponding to his / her sitting key to adjust the position of the seat, as described above, the controller 16 determines a new key signal and moves the seat to a desired position with an appropriate calculation operation. (Step 24). At this time. The controller 16 calculates the current sheet position that has been moved. Herein, the input number (not the key) may be displayed on the display unit 12.

After the twenty-fourth step, the controller 16 determines the selection of the specific memory switch (step 26).

As a result of the determination in step 26, when the memory switch is not selected, the new sheet position data ends without storing. On the other hand, when the memory switch is selected, the new sheet position data is set to the predetermined address of the second memory 10. After saving to the position, the series of sheet adjustment is finished.

Therefore, as described above, in the present invention, by pressing the number button corresponding to the driver's sitting key after the vehicle is started, the seat is easily adjusted automatically to a position suitable for the driver's sitting key, thereby making the driver feel comfortable. It is effective to drive.

Claims (2)

Starting switch; A key input unit arranged in a matrix form for inputting a driver's sitting key; A sheet position detection unit for detecting a sheet position divided into a plurality of levels; An analog-digital converting unit converting the analog position signal generated from the seat position detecting unit into a digital signal; A counting unit for counting a predetermined time; A first memory for storing a position value of a seat corresponding to a sitting key of the driver; A second memory for storing a sheet position value currently fixed according to a storage command by the key input unit; A motor driving part for driving the motor in forward rotation and reverse rotation; And reading the sheet position data stored in the second memory when there is no key input signal during a predetermined time counting of the counting unit, controlling the motor driving unit according to the sheet data of the second memory, and performing a predetermined counting key of the counting unit. And a control unit for reading data of an address corresponding to a key input signal received from the first memory when the input signal is received, and controlling the motor driving unit according to the sheet position data of the first memory. Sheet adjuster. The sheet adjusting apparatus according to claim 1, further comprising a display unit for displaying the decompression data input through said key input unit.