JPS6012349A - Motor-driven seat device of car - Google Patents

Abstract

PURPOSE:To prevent the excessive displacement of each adjusting section when adjusting the seat position at a certain car speed or higher by using a car speed detecting means. CONSTITUTION:A motor-driven seat device adjusts the position of a passenger seat 53 via a seat driving means 52 in response to an operation signal sent from a seat operation command feeding means 50 by an operation of a passenger. The displacement quantity of a seat is detected by a seat displacement quantity detecting means 54 and the car speed is detected by a car speed detecting means 55 respectively, and when the car speed is a predetermined car speed or higher and the seat is continuously displaced to a predetermined displacement quantity or more, the action of the seat driving means is stopped by a seat drive limiting means 51.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electric seat device that can electrically adjust the position of a passenger seat in an automobile using an electric motor or the like. - (Prior Art) In many cases, passenger seats in automobiles, particularly front seats, can be adjusted in position according to the occupant's physique, preference, etc., or to improve ease of getting in and out of the vehicle. Typical methods of position adjustment include adjusting the inclination angle of the backrest in the front-rear direction (so-called reclining adjustment) and adjusting the amount of sliding of the entire seat in the front-rear direction5, but recently, improvements in ride comfort, etc. Some models allow a wide variety of adjustments, such as adjusting the position of the headrest, adjusting the angle of the seat, and adjusting the angle of the side supports.

Conventionally, such seat position adjustment has been performed manually by the occupant, but so-called electric seat devices have also been proposed in which the adjustment is performed using an electric motor or the like.

When an electric seat device is used, adjustments that were conventionally made manually can be easily made by button or switch operation, and all position adjustments can be made relatively easily even while driving. In addition, by providing a means for detecting all the positions of the valley adjustment target and a means for storing the position in the electric seat device, the position suitable for a certain person such as the owner of the car can be memorized, and the When riding, the seat can be automatically set to a memorized position. This is particularly useful in a system called a keyless entry system in which door locks can be unlocked using a key code that includes a personal code unique to each passenger. (The keyless entry system will be described later.) As described above, the electric seat device has all kinds of advantages, but on the other hand, there are also problems such as malfunction of the switch. In particular, while driving, if the seat is extremely displaced due to, for example, a switch malfunctioning, or an object is placed on the switch by mistake and the switch is left in the ON state, etc. (for example, the backrest falls backwards). If the vehicle is closed, the driver's body may no longer be able to rely on it and the driving operation may become difficult.

For this reason, for example, as disclosed in Japanese Utility Model Application No. 56-131234, when the car is running at a speed exceeding a predetermined speed, the electric seat device is turned off regardless of whether the operation switch is turned on or off. There is a proposal to fix it in a fixed state so that it does not move. However, if position adjustment is completely impossible above a predetermined vehicle speed as in this proposal, even if you try to fine-tune the position while driving, you will not be able to do it as it is, and the vehicle speed will change each time. All vehicles must be brought to a standstill or all vehicles must be brought to a standstill.
The problem is that it is inconvenient.

(Objective of the Invention) In view of the above problems, the present invention prevents extreme displacement of each adjustment part when adjusting the seat position at vehicle speeds higher than a predetermined speed to ensure safety, and allows position adjustment below a predetermined amount. As a result, the seat position can be adjusted even when the vehicle is running at a predetermined speed or higher.
The aim is to provide a complete FC electric seat device.

(Structure of the Invention) In the electric seat device of the present invention, the position of the passenger seat is adjusted by the seat driving means in response to an actuation signal sent from the seat actuation command sending means in response to an operation by the occupant, and the seat displacement amount detecting means Detects the displacement of the seat and the vehicle speed t caught in the vehicle speed detection means, and when the seat is continuously displaced by a predetermined displacement amount or more when the vehicle speed is higher than a predetermined vehicle speed, The present invention is characterized in that the sheet driving means is adapted to stop the operation of the sheet driving means.

(Effects of the Invention) According to the present invention, when the seat is adjusted and adjusted while the vehicle is running at a predetermined full speed, displacement of more than a predetermined displacement amount does not occur continuously. Even if a switch is operated incorrectly, each part will not be excessively displaced, ensuring safety during operation. In addition to this, the seat position can be fully adjusted even when the vehicle is traveling at a predetermined speed or higher.

(Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is an electrical circuit diagram showing a keyless entry system having an electric seat device of the present invention. A keyless entry system is a system that locks doors by inserting a key code, including a burner code unique to the occupant, into a numeric key switch installed outside the vehicle body, instead of the key used to unlock the car door. In addition to canceling the mirror,
This is a system that allows in-vehicle equipment such as seats to be automatically set to adjustment positions specific to the occupant.

■ is a keyboard that is attached to the vehicle body so that it can be operated from outside the vehicle body. This keyboard 1 has numeric keys from O to 9, an "E N T '" key, a 60 tsuku'" key, and 6 rear deck keys, and it is possible to input a key code consisting of a series of numbers from this keyboard 1. With this, you can now perform tasks such as unlocking doors that were previously performed using a car key. The keyboard 1 is connected to a door-side control box 10, and a signal corresponding to the input key code is sent to the door-side control box 10. In addition to the keyboard 1, this door-side control box 10 includes a buzzer 2,
A battery 9 is connected via an outer handle switch 3, a door lock relay 4, a door unlock relay 5, a driver's door switch 6, a key illumination 7, and an ignition switch 8, and these are preferably a door side control consisting of a microcomputer. Controlled by the box 10, door locks and the like are performed.

Specifically, when the door is fully opened from the closed state, the outer handle switch 3k attached to the handle for opening and closing the door must first be turned ON. , handle sound), activate the keyless entry system. That is, the outer handle switch 3 plays a full role as a trigger for the operation of the keyless entry system. When the outer handle switch 3 also sends an ON signal to the door side control box 10, this control box 1
0, the key illumination 7 is illuminated and the keyboard 1 is illuminated to notify that the key code can be entered from outside. Here, if you input a key code consisting of a series of numbers including a personal code into the keyboard 1 and press the "ENT" key at the end, it will be determined whether this key code matches the pre-stored ℃・ru code. This is done by the door side control box 10, and when the two match, the door lock relay 5 is fully activated and the door is locked. Let it be canceled. In addition,
Keyboard 1 to lock the door when getting off the vehicle
The door lock relay 4 is operated by pressing the 60" key, but this door lock relay 4 is designed to operate only when the driver's door switch 6 determines that the door is closed. .Furthermore, if you press the 0 rear deck key instead of the ENT key following the above key code, you can open the rear trunk.Buzzer 2 notifies you that each key has been pressed when you operate keyboard 2. For this purpose, a buzzer sounds for approximately 0.1 seconds each time a key is pressed, and in order to prevent mischief, theft, etc., the buzzer sounds continuously for approximately 15 seconds if the wrong key code is entered 73 times. In addition, for the purpose of protecting the keyboard from slipping, the keyboard 1 and key illumination 7 are automatically turned off if the keyboard is not operated for 12 seconds or more after the outer knob switch 3 is operated.

The key code entered into the keyboard 1 can be set in any number of combinations of numbers, or in this embodiment, two types can be set: an owner code for the car owner and an others code for other purposes. It is said that Three lines, a request line 10a, a D1 data line 10b, and a D2 data line 10c, are connected between the door-side control box 10 and the indoor control box 20 to notify input of a key code. When the code is compared with a pre-stored code and it is determined that they match, the request line 10
A request signal as a trigger for activating the indoor control box 20vi from a, and a data signal corresponding to the input code to the keyboard 1 from the DI and D2 data lines 10b and 10c are sent to the indoor control box 20. The data lines 10b and 10c can transmit two types of signals, on and off, for each valley line, so there are two lines, and as shown in Table 1, there are four lines: a door lock signal, an owner code signal, an others code signal, and an inhibit signal. The kind of data signal is now full speed.

Among the signals shown in Table 1, the door lock signal is a signal to turn off all the indoor control boxes 20 when the doors are locked when the car is EJ.The inhibit signal is a signal to prevent malfunction as shown below. Used as a signal.

When the correct key code is input from the keyboard 1 and the door side control box 10 is activated, DI and D2
Both data lines 10b and 10c are in the ON state, that is, the inhibit signal is continuously sent. When an owner code or the like is sent, data signals are sent from the Dl and D2 data lines 10b and 10c along with a request signal from the request line 10a. for example,
When the owner code is input from the keyboard 1, a request signal is sent from the request line 10a, an ON signal is sent from the DI data line 10b, and a D2 data line loc is sent.
An OFF signal is sent from the controller to notify the indoor control box 20 that the owner code has been input. After the owner code is transmitted, the inhibit signal is continuously transmitted again. For example, if the D2 data line is disconnected, the D2 data line is turned OFF and becomes the owner code signal, so the system determines that a certain signal is disconnected and does not operate, thereby preventing erroneous operation. ing.

The interior control box 20 is preferably intercepted by a microcomputer, and creates a state in which the steering wheel, rearview mirror, and door mirrors are set to predetermined positions in response to signals from the data line, and the engine is started at the same time. Yes, the above cylinders ylOa, 10b, which are connected to the door side control box 10,
In addition to 10c, manual switch 21. for fully manual operation of left and right door mirrors and room mirror. Steering switch and indicator 24 for controlling the tilt angle of the steering wheel, memory switch 25, buzzer 26, ignition switch 27, secret switch 28, vehicle speed sensor 29, left door mirror control 30, stone door mirror control 33, room mirror control 34, Connection line 2 with steering link control 35 and seat control box 40
0a, . . . , 20f are connected to each other, and these are controlled and operated.

To adjust the positions of the left and right door mirrors and the room mirror, operate the manual switch 21 to send an activation signal to the interior control box 20, and based on this activation signal, the left and door mirror controls 30, 33, . On the other hand, the tilt angle of the steering wheel can be adjusted by manually operating the steering switch and indicator 24, and by fully driving the steering control 35 from the interior control box 20 in the same manner as above. Kill it. The manual switch 21 also serves as a changeover switch 23 and a position adjustment switch 22, and the changeover switch 23 serves as an off contact 23.
a1 Left door mirror contact 23b1 Stone door mirror contact 23C
The position adjustment switch 22 can be switched to four locations: 1 room mirror contact 23d, and the forward contact 22a.

It is possible to adjust the direction forward and backward and left and right by the direction changeover switch of the rear direction contact 22b, the direction changeover switch of the left direction contact 22c1, and the direction changeover switch of the stone direction contact 22d. Therefore, by combining these switch operations, the above-mentioned left and right door mirrors 30.
31 and rearview mirror 32 can be adjusted. The steering switch and indicator 24 consists of a steering switch 24a and a steering indicator 24b, and the tilt angle of the steering wheel is fully adjusted by operating the steering switch 24a, and the position at that time is displayed by the steering indicator 24b.

In this way, the position of the valley mirror and the tilt angle of the steering wheel can be adjusted as desired by operating the t switch, but each mirror and steering control 30, 33, 34, 35 can be adjusted, for example, by the left door mirror controller 30. Front-rear actuator 31a, left-right actuator 3231 Front-rear position detection sensor 3
1b and left/right position detection sensor 32b (like the i7, it has a rotational adjustment actuator and 3 position detection sensors, so that the position or angle can be detected at the same time as the position or angle of each mirror and steering wheel is adjusted. Therefore, the driver can set the position of the Mira i etc. that suits him/her and use the memory switch 2 for this position.
5, the memory switch 25 can be stored in the indoor control box 20 even if the position of the mirror etc. is changed.
This operation allows all stored positions to be reset to the calling source positions. The memory switch 25 consists of a set button and 5 buttons from 1st to 4th buttons. By pressing the set button and then any one of the 1st to 4th buttons, a total of 4 buttons can be pressed. The position can be stored in the control box 20 in the pregnancy room.

It should be noted that each time the above-mentioned buttons are operated, the buzzer 26 sounds for a short period of time (approximately 0.1 seconds) to notify the user with the full sound of the button activation.

In the non-implemented example, the memory switch 25 and the key code input to the keyboard l are linked, and since there are two key codes, an owner code and an others code, there are four types corresponding to the memory switch 25 for each code. It is possible to store eight types of position settings for accounting.

Furthermore, for example, if the owner code is input,
The first button calls up the memorized position, and the owner of the car responds to the first button.
By memorizing all the positions of mirrors, etc. that match the vehicle owner, it is possible to automatically set the valley mirrors, etc. to the position where they meet the owner of the car, at the same time as inputting the owner code from the keyboard 1. In this embodiment, the first button of the memory switch 25 is dedicated to the owner code, and in order to completely prevent the memory position of the mirror, etc. from being reset to another position by another person, a secret switch 28 is provided that can only be operated by the owner.
When this switch 28 is on, the memory by the first button of the memory switch 25 cannot be changed.

The ignition switch 27 is an engine switch l-)
This is the locking mechanism for the ignition 8 for the indoor control box 2 when the key code is input to the keyboard 1.
When an activation signal is sent to the ignition switch 27, the ignition switch 27 is activated, and the ignition switch 27 is unlocked and the engine can be started. For this reason, even when the ignition can be operated from the outside when the window glass is open, the engine cannot be started unless the key code is entered into the keyboard (to prevent theft). The vehicle speed signal detected by the vehicle speed sensor 29 is used to limit the operation of the seat position adjustment actuator above a predetermined vehicle speed, as will be described later.

Next, from the indoor control box 2o to the line 20a
A signal is sent to the seat control box 4o via , , , 20f.

The seat control box 4o is preferably composed of a microcomputer and is for controlling each position of the seat, and is for controlling the positions of the seats 20a, . . . , 20f.
In addition, a manual switch 41 and a seat control 44, a driver's door switch 42, and a weight sensor 43 are connected to control each position of the seat. The seat control 44 consists of an actuator and a position detection sensor, and the actuator and position detection sensor are provided according to the degree of freedom in adjusting the seat position.In this embodiment, there are five sets of these, and the degree of freedom is five, that is, five Various seat position adjustments are possible. Each actuator is driven by a manual switch 41 consisting of five changeover switches corresponding to each actuator via a seat control box 4o. The seat position set by the manual switch 41 is detected by the position detection sensor of the seat control 44, and the life 20a,... song..., 20e
The information can be stored in the seat control box 4o in response to each button operation of the memory switch 25 by signals sent from the indoor control box via the . That is, by operating the memory switch 25, it is possible to memorize not only the positions of the respective mirrors, etc. described above, but also the seat positions.Thereby, by simply operating the memory switch 25, the mirrors, etc. and the seat can be placed in the pre-memorized positions. Easy to set up.

When adjusting the seat position using the manual switch 41, if the vehicle speed detected by the vehicle speed sensor 29 is determined to be higher than a predetermined value and an enable signal is sent from the line 2Of, the operation of the actuator is limited. ,
For safety reasons, sudden changes in seat position are prevented.

The driver's door switch 42 and the weight sensor 43 are for detecting the opening/closing of the driver's door and the seating of the driver. This makes it possible to perform various controls such as setting the seat to a predetermined position when the driver is seated and the door is closed.

In the above configuration, the door side control box 10
．． Although the indoor control box 20 and the seat control box 40 have been described as being separate, it is logical that they may be integrated into one control box.

FIG. 2 is a block diagram schematically showing the operation of the electric seat device according to the present invention. Manual switch 41 in Figure 1
The corresponding operation command from the seat operation command sending means 50 is sent to the seat drive limiting means 51 (seat control box 40 in FIG. 1). Sheet drive limiting means 51
The vehicle speed number from the vehicle speed detection means 55 and the displacement amount signal from the seat displacement amount detection means 54 (the position detection sensor of the seat control 44 in FIG. 1) are input to The actuation command from the seat actuation command sending means 5° is directly transmitted to the seat driving means 52 (actuator of the seat control 44 in FIG. 1) to adjust the position of the seat 53. On the other hand, when the vehicle speed is higher than a predetermined value, the position of the seat 53 is adjusted by the seat drive means 52 in response to an operation command from the seat operation command sending means 5o.
When the amount of displacement detected by step 4 exceeds a predetermined amount, the sheet driving means 52 is stopped to suppress further displacement of the sheet even if an actuation command is sent.

FIG. 3 is a side view of a seat whose position is adjusted according to the present invention, and this example shows a case where the reclining angle of the seat is adjusted as position adjustment.

The dashed-dotted lines Ll and L2 indicate the angle limit at which the seat can recline, and L3 indicates the current seat position (
(sheet center line). When it is determined that the vehicle speed detected by the vehicle speed sensor 29 is less than a predetermined value (for example, less than 10 Kfn/H), the reclining angle of the seat can be freely set within the range surrounded by lines L1 and L2, and the reclining angle of the seat can be set freely within the range surrounded by lines L1 and L2. When the switch 41 is operated to send an operation signal for adjusting the reclining angle to the seat control box 40, a signal is sent to actuate the actuator of the seat control box 40 or the seat control 44, and this actuator adjusts the reclining angle to Ll. It can be set arbitrarily within the range surrounded by and L2.

However, when it is determined that the vehicle speed exceeds a predetermined value, the seat control box 40 operates so as to enable only rolling by an angle α indicated by diagonal lines in the figure for each successive operation command. Restrict. That is, when operating the actuator of the seat control 44 via the seat control box 40 by operating the manual switch 41, if the vehicle speed is below a predetermined value, the seat reclines at a predetermined speed while the manual switch 41 is on. I will continue,
When the vehicle speed exceeds a predetermined value, even if the manual switch 41 is turned ON continuously, when the seat reclines by an angle α, the transmission of the actuator activation signal from the seat control box 40 is stopped, and the seat reclines by the angle α. . However, manual switch 4
1 to -HOFF and then ON again, it is possible to recline further by an angle α from the time the switch is turned ON. In this way, when the vehicle speed is above a predetermined value, the seat does not recline continuously, so even if something is accidentally placed on the switch and the switch remains on, the seat will not fall over. This is preferable from the point of view of safety because it prevents the product from being put away.

FIG. 4 is a graph showing the relationship between the signal and time when the manual switch 41 is operated to perform reclining when the vehicle speed is above a predetermined value.

Graph A shows the signal of the manual switch 41, and shows an example in which the switch is turned on from time to to time t1. Graph B shows the flow from the sheet control box 40 to the sheet control 44 in response to the above signal.
In this case, the time to
The ON signal is sent from t2, but the time t2 is when it is determined that the reclining angle has tilted by 1α" from the initial position.
This signal is turned off at . Graph C is a signal that stores the reclining start position that is the basis for adjusting the reclining angle at 1 o'clock when the seat is reclined, and the position at that point is updated as the start position every time the signal is issued. It is meant to be remembered. This signal is not output when the manual switch 41 is ON, and is output as a pulse signal having a predetermined period only when it is OFF. Therefore, the position immediately before the manual switch 41 is turned ON and the actuator starts operating is memorized, and this position and the seat control 4
The reclining angle can be detected by comparing the position detected by the position detection sensor No. 4. When the manual switch 41 turns OFF', a pulse signal is output again and the seat position at that time is updated and stored as the start position.

FIG. 5 is a detailed circuit diagram showing the seat control box 40 portion in the keyless entry system.

When the occupant adjusts the reclining angle of the seat, a manual switch 45 is operated to cause the seat control box 40 to output a seat forward tilt signal from line 40a or a seat backward tilt signal from line 40b.

The seat control box 40 is a one-chip type CPU with a built-in event counter and timer and an input/output port, and receives a signal from a manual switch 45 and sends an activation signal to a drive motor 44d as an actuator for adjusting the seat reclining angle. The signal is output to the drive motor 44d via the transistor bridge drive circuit 44C of the seat control 44. Therefore, the reclining angle of the seat is adjusted by the drive motor 44d, and the reclining angle is detected by the position detection sensor 44b consisting of a potentiometer, and this detection signal (voltage signal) is converted into a digital signal by the A/D converter 44a. and is fed back to the sheet control box 40. The sheet control box has
A pulse signal from the vehicle speed sensor 29, which repeatedly turns ON and OFF according to the amount of rotation of the axle obtained by a combination of an optical sensor and a disc with a slit, and generates a pulse train with a frequency proportional to the vehicle speed, is transmitted to the vehicle speed-pulse train converter 45. It is converted into a digital signal and input. Therefore, the vehicle speed is set to a predetermined value (
For example, when the speed is higher than 10 km/h, the seat is tilted forward (backward) from the manual switch 41 as shown in Figure 3.
Even if the signal is continuously output, the position detection sensor 44
When the amount of change in the reclining angle of the seat detected by b exceeds a predetermined value (angle α), the transistor bridge drive circuit 44 is activated by the seat control box 40.
The output to C is stopped, and the operation of the drive motor 44d is stopped.

The operation of the seat control box 40 shown above will be explained with reference to the flowchart shown in FIG. This program flow starts from the presence or absence of an operation command signal (the above-mentioned seat tilt forward or backward tilt signal) from the manual switch 41. When the operation command signal is not output (when the manual switch 41 is OFF), the current position is updated and recorded by the pulse signal shown in graph C of FIG. 4, and at the same time, the actuator (drive motor) is stopped and held. When the operation command signal is output, the vehicle speed increases to the first predetermined value v1 (for example, 10
It is determined whether or not it is above Vl (Km/H), and if it is below Vl, the actuator is operated in accordance with the operation command signal. When the vehicle speed is 71 or higher, this vehicle speed is the second predetermined value V2.
(for example, 1100 K/H) or less, and when traveling at a high speed of 72 K/H or higher, the actuator is stopped and held from the viewpoint of safety, and seat position adjustment is prohibited.

■When the speed is less than 2, that is, when the vehicle speed is between vl and v2, check whether the amount of seat movement is within a predetermined range, that is, the change in the seat reclining angle from the position at the time the operation command was issued. It is determined whether or not it is within a predetermined range (within angle α), and when it is within a predetermined range, the actuator is operated and this flow is repeated.
When the amount of seat movement is outside the predetermined range, the vehicle speed is
As long as L is between V2 and V2, the operation of the actuator is stopped even if the seat operation command signal is continuously output.

FIG. 7 is an electrical circuit diagram showing a second embodiment of the present invention. When the manual switch 44 is operated by the occupant and a seat reclining operation command signal is output to the seat control box 40, the drive motor 44d as an actuator is output from the seat control box 40 via the transistor bridge drive circuit 44.
An activation signal is output. Therefore, the drive motor 44d is driven to adjust the reclining of the seat. At this time, the seat movement amount/pulse train converter 44e outputs a pulse signal to the seat control box 40 in accordance with the drive of the drive motor 44d. A vehicle speed signal converted into a digital signal by a vehicle speed-to-pulse train converter 45 is also input to the seat control box 40, and when the vehicle speed is above a predetermined value (for example, 10 km/h), an operation command is issued from the manual switch 41. The amount of sheet movement after the signal is output - the number of pulses output from the pulse train converter 44e is totaled, and if the total number of pulses reaches a predetermined value, the sheet control is performed even if the operation command signal is continuously output. Box 40 stops the operation of drive motor 44d. Therefore, even if the manual switch 41 is continuously turned on, the seat reclines by a predetermined angle (displacement angle until the total number of pulses reaches a predetermined value) and then stops. Note that the manual switch 41 is set to O.
When set to FF, the total number of upper and lower pulses is reset to zero and the next operation command is awaited. Further, when the vehicle speed is below a predetermined value, the drive motor 44d is driven in response to the operation of the manual switch 41, and the seat can be moved to an arbitrary position.

The operation of the seat control box 40 in this case will be explained with reference to the flowchart shown in FIG. This flow is
As in FIG. 6, the operation starts with determining whether or not the operation command signal is output from the manual switch 41, and when there is no operation command signal, the operation range monitoring is performed by summing the number of pulses from the sheet movement amount-pulse train converter 23. Reset the counter to zero and keep the actuator (drive motor) stopped. When the operation command signal is output, it is determined whether the vehicle speed is greater than or equal to a first predetermined value (1), and when it is less than (1), the actuator is actuated in accordance with the operation command signal. Vehicle speed is 7
When it is 1 or more, it is determined whether the vehicle speed is less than the second predetermined value v2, and when it is 72 or more, the actuator is stopped, and when it is less than 2, the total number of pulses on the operating range monitoring counter (i.e. It is determined whether the counter value) is less than or equal to a predetermined value. When the total number of pulses is less than a predetermined value, the actuator is activated and this flow is repeated.
When the total number of pulses reaches a predetermined value, the vehicle speed becomes ■1 or more or more than 2.
As long as the following conditions apply, the operation of the actuator is stopped regardless of the operation command signal.

FIG. 9 is a flowchart showing the operation of the seat control box according to the third embodiment of the present invention. In the embodiment shown in FIGS. 7 and 8 (second embodiment), the amount of change in the reclining angle of the seat is expressed as
Based on the Nox number from the column converter 44e (・tag,
In this embodiment, time is used instead of the number of pulses for control. This is the actuator (drive motor)
The rate of change in the seat reclining angle is almost constant,
It focuses on the fact that the operation command signal of the manual switch 41 is approximately proportional to the time during which it is output, and when the vehicle speed is above a predetermined value, the operation command signal continues after a certain period of time after the operation command signal is output. Even when the output is being output, the actuator is stopped to prevent reclining by a predetermined amount or more (angle α or more).

This flow motor starts by determining the presence or absence of an operation command signal from the manual switch 41, and when there is no operation command signal, the timer built in the seat control box 40 is set to zero (
Start) and keep the actuator (drive motor) stopped. The timer is turned on at the same time as the operation command signal is output. Therefore, the timer advances as long as the operation command signal continues, and when the operation command signal is interrupted (
When the operation command signal is output and the timer is turned on, it is determined whether the vehicle speed is equal to or higher than the first predetermined value 71, and if the vehicle speed is equal to or lower than V1. When the vehicle speed is 1 or more, it is determined whether this vehicle speed is less than or equal to a second predetermined value 2.When the vehicle speed is 72 or more, the actuator is operated according to the operation command signal. When the timer is 2 or less, it is determined whether the timer time has reached the predetermined time or not.If the timer time has not reached the predetermined time, the actuator is activated and this flow is repeated, and the timer time is stopped. When the vehicle speed reaches a predetermined time, the actuator will stop operating even if the operation command signal continues to be ON as long as the vehicle speed is V1 or more and V2 or less. When the value is greater than or equal to v1 and less than or equal to 2, the seat reclines by a predetermined amount (angle α) and stops.

[Brief explanation of the drawing]

FIG. 1 is an electric circuit diagram of a keyless entry system having an electric seat device according to the present invention, FIG. 2 is a block diagram showing an outline of the operation of the electric seat device according to the present invention, and FIG. 3 is an electric circuit diagram of a keyless entry system having an electric seat device according to the present invention. 4 is a graph showing a signal change when the electric seat device of the present invention is operated when the vehicle speed is above a predetermined value. FIG. 5 is a side view of a seat control box according to an embodiment of the present invention. 6 is a flow chart showing the operation of the seat control box in the embodiment of FIG. 5; FIG. 7 is an electrical circuit diagram showing the second embodiment of the electric seat device according to the present invention; FIG. is a flowchart showing the operation of the seat control box in the embodiment of FIG. 7, and FIG. 9 is a flowchart showing the operation of the seat control box in the third embodiment of the present invention. 1... Keyboard 2... Buzzer 3... Outer handle switch 4... Door lock 5... Door unlock 6... Driver's door switch 7... Key illumination 1
0 ... Door side control box 20 ...
Indoor control box 21...Manual switch 24...Steering switch & indicator 25
...Memory switch 29...Vehicle speed sensor 30...
・Left door mirror control 35 ... Steering control 40 ... Seat control box 41 ... Manual switch 44 ... Seat control Fig. 2 Fig. 3 Fig. 4 Fig. 8 Fig. 9

Claims (1)

[Claims] a seat drive means for adjusting the position of the passenger seat; a seat operation command sending means for sending an operating signal to the seat drive means at full speed in response to an operation by the passenger; and detecting the amount of displacement of the coming seat by the seat drive means. seat f position detection means for detecting the total vehicle speed; vehicle speed detection means for detecting the entire vehicle speed; and when the vehicle speed detected by the vehicle speed detection means is equal to or higher than a predetermined vehicle speed, the passenger seat is continuously displaced by the seat driving means. and seat drive limiting means for completely stopping the operation of the seat driving means when the displacement amount of the passenger seat is detected by the seat displacement amount detection means as exceeding a predetermined displacement amount. sheet equipment.