JP2003011704A - Seat drive controller for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seat drive controller for a vehicle allowing the application of an auto slide seat system to the vehicle provided with manual transmission thereon. SOLUTION: This seat drive controller for the vehicle has a seat motor 10 for moving a seat of the vehicle in the forward and backward directions of the vehicle, a brake pedal switch 2 for detecting whether a brake pedal of the vehicle is operated or not, and a control unit 11 for inhibiting the move of the seat to the rear of the vehicle by the seat motor 10 when the brake pedal switch 2 detects that the brake pedal is operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for driving a vehicle seat, and more particularly to a vehicle seat drive control device in which an automatic slide seat system can be applied to a vehicle equipped with a manual transmission.

[0002]

2. Description of the Related Art An automatic slide seat system is known as a seat drive device of this type. This system is applied to a vehicle equipped with an automatic transmission, and includes a motor that slides a driver's seat of the vehicle in the vehicle front-rear direction. When the shift position of the transmission is in the P (parking) range and the door changes from the closed state to the open state, it is determined that the vehicle is stopped and the driver of the vehicle is about to get off. Then, the driver's seat of the vehicle is automatically retracted to the retracted position. As a result, the driver can easily get off the vehicle. When the shift position of the transmission is in the P range and the door changes from the open state to the closed state, it is determined that the vehicle is in the stopped state and the driver has boarded, and the driver's seat of the vehicle Move the seat forward from the retracted position to the set position. This allows
The driver can easily get in and can automatically reproduce the driving position suitable for himself.

[0003]

However, since the vehicle equipped with the manual transmission does not have the P (parking) range at the shift position of the transmission, it is not possible to detect the stopped state of the vehicle and therefore the automatic slide seat. The system could not be applied.

However, instead of detecting the parking range of the automatic transmission, for example, the state of the parking brake switch that is turned on when the parking brake lever is operated is detected, and when the parking brake switch is turned on, It is conceivable to judge that the vehicle is in a stopped state and allow the driver's seat to move backward and forward.

However, on a slope or the like, the parking brake and the foot brake may be used together to stop the vehicle. Therefore, when the driver's seat is moved backward in such a state, it is difficult to operate the brake pedal. There was a problem.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a vehicle seat drive control device in which an automatic slide seat system can be applied to a vehicle equipped with a manual transmission. To do.

[0007]

(1) In order to achieve the above object, according to the invention of claim 1, a seat drive means for moving a seat of a vehicle in a front-rear direction of the vehicle, and a brake pedal of the vehicle. Brake operation detection means for detecting whether or not the vehicle is operated, and when the brake operation detection means detects that the brake pedal is operated, the seat drive means moves the seat rearward of the vehicle. A vehicle seat drive control device having a prohibition control means is provided.

The vehicle seat drive control device of the present invention has means for detecting the operation state of the brake pedal, and prohibits the rearward movement of the seat when the brake pedal is operated. This prevents the seat from moving rearward at least when the brake pedal is depressed, so that when the vehicle is parked on a slope with both the parking brake and the foot brake, the seat moves backward. Then, the trouble that the brake operation becomes difficult is eliminated.

(2) According to the second aspect of the present invention, there is further provided a parking brake operating state detecting means for detecting whether or not the parking brake of the vehicle is operating, and the control means operates the parking brake. There is provided a vehicle seat drive control device for prohibiting the movement of the seat by the seat drive means when the detection and detection means does not detect that the parking brake is operating.

The vehicle seat drive control device of the present invention has means for detecting the operating state of the parking brake in addition to means for detecting the operating state of the brake pedal. When the vehicle is not covered, that is, when the vehicle is stopped only by the braking force of the parking brake, the seat is allowed to move back and forth. As a result, similar to the above-described invention, when the parking brake and the foot brake are used together on a slope and the vehicle stops, in addition to the problem that the seat moves backward and the brake operation becomes difficult, In this case, since the seat automatically moves back and forth, the driver can easily get on and off the vehicle and automatically regenerate a driving position suitable for himself / herself.

(3) According to the third aspect of the present invention, the vehicle further comprises a vehicle speed detecting means for detecting the speed of the vehicle, and the control means is such that the brake pedal is not operated by the brake operation detecting means. If detected,
Provided is a vehicle seat drive control device for prohibiting the movement of the seat by the seat drive means when the vehicle speed detected by the vehicle speed detection means is equal to or higher than a predetermined value.

The vehicle seat drive control device according to the present invention has means for detecting the vehicle speed, and the movement of the seat is not permitted unless the vehicle speed is less than a certain speed. Therefore, it is possible to more reliably determine whether or not the vehicle is in a stopped state. Can be detected.

(4) According to the invention of claim 4, a door open state detecting means for detecting that the door of the vehicle is in the open state, and a closed state for detecting that the door of the vehicle is in the closed state. The seat drive means further includes a detection means, and when the movement of the seat is not prohibited by the control means, the door open state detection means detects that the vehicle door is in the open state. After that, when it is detected that the vehicle door is in the door closed state by the door closed state detection means, the seat is moved forward to the vehicle to a preset position, and the vehicle door is closed by the door closed state detection means. When the door open state detecting means detects that the vehicle door is in the open state after the door is in the closed state, the seat is moved to the rear of the vehicle to a predetermined retracted position. Dual seat driving control device is provided.

In the vehicle seat drive control device according to the present invention, when it is detected that the vehicle door is in the open state and then the door is closed, it is determined that the occupant has boarded the vehicle. Judgment is made and the seat is advanced from the retracted position to the set position. Further, when it is detected that the door of the vehicle is in the closed state after it is detected that the door of the vehicle is in the closed state, it is determined that the occupant is about to get off,
Move the seat back from the set position to the retracted position.

As a result, the opening area of the door at the time of getting on and off is widened so that it is easy to get on and off the vehicle, and it is possible to automatically reproduce a driving position suitable for oneself when getting on and off.

(5) According to a fifth aspect of the invention, there is further provided a seating state detecting means for detecting whether or not an occupant is seated on the seat of the vehicle, and the seat driving means is controlled by the control means. In the case where the movement of the seat is not prohibited, if it is detected that the occupant is not seated on the seat by the seating state detection means, and then the occupant is detected, When it is detected that the occupant is not seated after the seating state detection means detects that the occupant is seated, the seat is moved to the front of the vehicle to the set position. Provided is a vehicle seat drive control device that moves a vehicle rearward to a predetermined retracted position.

The vehicle seat drive control device of the present invention has means for detecting whether or not an occupant is seated in the seat, and the occupant is seated after the occupant is not seated in the seat. If it is detected that the passenger has boarded, the seat is advanced from the retracted position to the set position. If it is detected that the occupant is not seated in the seat and then the occupant is not seated, it is determined that the occupant is about to exit and the seat is moved from the set position to the retracted position. Retreat.

As a result, the door opening area at the time of getting on and off the vehicle is widened so that it is easy to get on and off the vehicle, and when the user gets on the vehicle, the driving position suitable for himself can be automatically reproduced.

[0019]

According to the invention described in claims 1 to 5, the seat is prevented from moving backward at least when the brake pedal is depressed, so that the parking brake and the foot brake are operated on a slope, for example. When both are stopped together, the problem that the seat moves backward and it becomes difficult to operate the brake is eliminated. Therefore, the automatic slide seat system can be adopted in a vehicle equipped with a manual transmission.

In addition to this, according to the second aspect of the invention, for example, when the vehicle is parked on a slope using both the parking brake and the foot brake, the seat moves backward and the brake operation becomes difficult. In addition to eliminating malfunctions, the seat will automatically move back and forth if not so that the driver can easily get on and off and automatically regenerate a driving position suitable for him / herself. .

According to the third aspect of the invention, since the movement of the seat is not permitted unless the vehicle speed is equal to or lower than a certain speed, it is possible to more reliably detect whether or not the vehicle is stopped.

Further, according to the inventions of claims 4 to 5,
The door opening area at the time of getting on and off is widened so that it is easy to get on and off the vehicle, and when the passenger gets on, it is possible to automatically reproduce the driving position suitable for oneself.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a vehicle seat drive control device of the present invention. A vehicle seat drive control device 100 of this example includes a parking brake switch 1, a brake pedal switch 2, an ignition switch 3 and a door. It has a switch 4, a vehicle speed detector 5, a seat forward switch 6, a seat backward switch 7, a memory switch 8, a seat position detector 9, a seat motor 10 and a control unit 11.

The parking brake switch 1 is turned on when a parking brake lever (not shown) is operated.
When the parking brake lever is not operated, it is turned off, and these ON / OFF signals are sent to the control unit 11. Generally, it can be constituted by a parking brake lever or a mechanical switch provided in this mechanism.

The brake pedal switch 2 is turned on when the brake pedal is being operated and is turned off when the brake pedal is not being operated, and is turned on / off.
The signal is sent to the control unit 11. Generally, it can be constituted by a brake pedal or a mechanical switch provided in this mechanism.

The ignition switch 3 is turned ON when the ignition key is in the ON position, and turned OFF when the ignition is in the OFF position.
The / OFF signal is sent to the control unit 11. Generally, it can be constituted by an ignition key or a mechanical or electric switch provided in this mechanism.

The door switch 4 is turned on when the driver's seat door is opened and turned off when the driver's seat door is closed, and these ON / OFF signals are sent to the control unit 11. . Generally, it can be constituted by a mechanical switch provided at a door or a door opening.

The vehicle speed detector 5 detects the speed of the vehicle and sends the speed signal to the control unit 11.

The sheet advancing switch 6 is a switch for manually advancing the sheet, and sends a sheet advancing signal to the control unit 11 while the sheet advancing switch 6 is operated. The seat retreat switch 7 is a switch for manually moving the seat backward, and sends a seat retreat signal to the control unit 11 while the seat retreat switch 7 is being operated.

The sheet position detector 9 detects the current position of the sheet and sends the current position signal to the control unit 11.

The memory switch 8 is a switch for setting the position of the seat according to the occupant. When the memory switch 8 is operated, a storage command signal is sent to the control unit 11.

The seat motor 10 moves the seat forward and backward based on the seat advance command and the seat retract command from the control unit 11. The seat is provided with a slide mechanism, and the seat can be moved forward or backward along the slide mechanism.

The control unit 11 sends a sheet advancing command and a sheet retracting command to the seat motor 9 to control the sheet advancing and retracting. The operation will be described below.

The control unit 11 includes the memory unit 1
1 a and a control unit 11 b, and the control unit 11 b stores the sheet position detected by the sheet position detection unit 9 based on the storage command signal sent from the memory switch 8.
1a.

The memory unit 11a stores the sheet position sent from the control unit 11b as a set position and also stores a predetermined sheet retreat position.

Further, the control section 11b receives the manual sheet advance signal and the sheet retract signal sent from the sheet advance switch 6 and the sheet retract switch 7 only,
The seat motor 10 sends a seat advance command and a seat retract command.
To move the sheet forward and backward.

In particular, the control unit 11b of this example reads the parking brake switch 1, the brake pedal switch 2, the ignition switch 3, the state of the door switch 4, the vehicle speed detected by the vehicle speed detection unit 5, and reads the read parking brake switch. 1, the setting position and the retracted position stored in the memory 11b, and the seat position detected by the seat position detection unit 9 are read based on the states of the brake pedal switch 2, the ignition switch 3, the door switch 4, and the vehicle speed. Based on the read set position and retracted position, the seat position, and the state of the brake pedal switch 2, a seat advance command and a seat retract command are sent to the seat motor 9.

This operation will be described in more detail. FIG. 2 is a flowchart showing the operation of the vehicle seat drive control device of the present invention. This flowchart is, for example, 100
Starts up every mmsec. First, in step 101, the state of the parking brake switch 1 is read,
It is determined whether the read state of the parking brake switch 1 is on. If it is ON at this time, the process proceeds to step 102, and if it is not ON (that is, OFF)
If so, the state of the parking brake switch 1 is read again.

When the parking brake switch 1 is ON, the vehicle speed detected by the vehicle speed detector 5 is read in step 102, and it is determined whether the read vehicle speed is equal to or less than a predetermined value (for example, 3 km / h). Here, if the read vehicle speed is less than or equal to the predetermined value, step 10
If the read vehicle speed is higher than the predetermined value, the process returns to step 101 to read the state of the parking brake switch 1 again.

If the vehicle speed is less than the predetermined value, step 1
03, the state of the ignition switch 3 is read, and the read state of the ignition switch 3 is O.
It is determined whether it is FF. If it is OFF, the process proceeds to step 104. If it is not OFF (that is, ON), the process returns to step 101 and the state of the parking brake switch 1 is read.

If the ignition switch is OFF, the state of the door switch 4 is read in step 104, and it is determined whether or not the read state of the door switch 4 is ON. Here, if it is ON (that is, if the door is open), proceed to step 105. If it is not ON (that is, OFF, the door is closed), step 1
Proceed to 11.

If the door is open, step 10
At 5, the state of the door switch 4 is read and it is determined whether the read state of the door switch 4 is OFF. Here, the state of the read door switch 4 is O
If FF (that is, if the door is closed), step 1
If it is not OFF (that is, ON, the door is open), the state of the door switch 4 is read again.

If it is determined in step 104 that the door is in the open state, and if it is determined in step 105 that the door is in the closed state, it can be determined that the occupant has opened the door and boarded and closed the door. In step 106, the sheet setting position stored in the memory 11a is read, and the process proceeds to step 107.

In step 107, a sheet advance command is sent to the seat motor 10, the seat motor 10 is driven to advance the sheet, and the process proceeds to step 108. In step 108, the current position of the sheet detected by the sheet position detecting unit 9 is read, and the process proceeds to step 109. In step 109, it is determined whether or not the current position of the sheet read in step 108 is the sheet setting position. Here, if the read current position of the sheet reaches the sheet setting position, the process proceeds to step 110, the transmission of the sheet advance command is stopped, and the movement of the sheet is stopped. If the current position of the read sheet is not the sheet setting position, the process returns to step 107, the sheet advance command is continuously sent to the sheet motor 10, and the forward drive of the sheet is continued.

By the operations of steps 104 to 110, when the occupant sits down to get on the vehicle, the seat is automatically moved to the drive position suitable for him / herself, and the seat is retracted before getting on. As a result, the opening of the door is widened so that the driver can easily get on the vehicle, and the drive position can be automatically and quickly reproduced.

On the other hand, when it is determined in step 104 that the read state of the door switch 4 is not ON (that is, OFF, the door is closed), the process proceeds to step 111.
The state of the brake pedal switch 2 is read, and if the read state of the brake pedal switch 2 is OFF (that is, the brake pedal is not depressed), step 11
When the state of the read brake pedal switch 2 is ON (that is, the brake pedal is depressed), the state of the brake pedal switch 2 is read again.
In other words, in this example, even if the parking brake lever is operated in step 101, there is a possibility that the parking brake and the foot brake will be used together and the vehicle will be stopped when the brake pedal is depressed. Therefore, in such a case, the movement of the seat is prohibited.

If the brake pedal switch is OFF, the state of the door switch 4 is read in step 112, and it is determined whether or not the read state of the door switch 4 is ON. Here, when the read state of the door switch 4 is ON, the door has been changed from the closed state (step 104) to the open state, so that it is determined that the occupant is about to get off and the process proceeds to step 113. If the status of the read door switch 4 is OFF,
The state of the door switch 4 is read again, and it is determined whether the read state of the door switch 4 is ON.

In step 113, the memory 11a
The retracted position stored in is read and the process proceeds to step 114. In step 114, a seat retreat command is sent to the seat motor 10, the seat motor 10 is driven to retract the seat, and the process proceeds to step 115.

In the next step 115, the state of the brake pedal switch 2 is read, and if the read state of the brake pedal switch 2 is OFF (that is, the brake pedal is not depressed), the process proceeds to step 116 and the read brake pedal is read. Switch 2 is ON
If it is (that is, the brake pedal is depressed), the routine proceeds to step 110, the transmission of the seat retreat command is stopped, and the movement of the seat is stopped.

At step 116, the current position of the sheet detected by the sheet position detecting section 9 is read,
Proceed to step 117. In step 117, the current position of the sheet read in step 116 is
It is determined whether the seat is in the retracted position. If the current position of the read sheet is the sheet retreat position, the process proceeds to step 110, the transmission of the sheet retreat command is stopped, and the movement of the sheet is stopped. The current position of the read sheet is
If it is not the sheet retreat position, the process returns to step 114 to send a sheet retreat command to the seat motor 10 to continue the backward movement of the sheet until the sheet retreat position is reached.

The embodiments described above are described for facilitating the understanding of the present invention, and not for limiting the present invention. Therefore, each element disclosed in the above-described embodiment is intended to include all design changes and equivalents within the technical scope of the present invention.

In the above-described embodiment, it is detected that the occupant has boarded the vehicle and that the occupant is about to dismount based on the state of the door switch 4 that detects the open state of the door, and the seat is advanced to the set position. In addition, it is configured to retreat to the retreat position, but instead of this, when the ignition switch 3 is switched from on to off, it is determined that the occupant is about to get off, the seat is retracted to the retreat position, and the ignition switch is turned on. If it is switched from off to on, it may be determined that the occupant has boarded and the seat may be advanced to the set position.

When the key switch, which is provided in the key hole of the ignition and is turned on when a key is inserted, is turned off from on, it is determined that the occupant is about to get off the vehicle and the seat is at the retreat position. When the key switch is turned from off to on, it is determined that the occupant has boarded and the seat may be moved forward to the set position.

Further, a seating detection means for detecting the weight of the seat or the load on the upper surface of the seat is provided, and when the weight of the seat or the load on the upper surface of the seat is equal to or less than a predetermined value, it is determined that the occupant is about to get off the seat. May be moved back to the retracted position, and when the weight of the seat or the load on the upper surface of the seat exceeds a predetermined value, it is determined that the occupant has boarded and the seat may be moved forward to the set position.

Further, the door lock state is detected, and when the door is unlocked from the lock, it is determined that the occupant is about to get off the vehicle, the seat is retracted to the retracted position, and the door is unlocked. If so, the occupant may be judged to have boarded and the seat may be advanced to the set position.

Further, in the above-mentioned embodiment, when it is detected that the occupant is getting on the vehicle and the occupant is about to get off the vehicle, the seat is moved forward to the set position and retracted to the retracted position. Instead, it may be configured to move forward or backward by a predetermined movement amount.

Further, in the present embodiment, the operating state of the foot brake is detected by the brake pedal switch provided on the brake pedal. However, when the hydraulic pressure of the brake is equal to or higher than a predetermined value or the brake lamp is turned on. This may be detected to detect the operating state of the foot brake. Similarly, the operating state of the parking brake is detected by the parking lever switch provided on the parking brake lever, but the operating state of the parking brake may be detected from the movement amount of the parking brake wire or the like.

Although the vehicle seat drive control device of the present invention is preferably applied to a vehicle equipped with a manual transmission, it is not limited to this and is also applicable to other vehicles equipped with an automatic transmission. There is no end.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a vehicle seat drive control device of the present invention.

FIG. 2 is a flowchart showing the operation of the vehicle seat drive control device of the present invention.

[Explanation of symbols]

100 ... Vehicle seat drive control device 1 ... Parking brake switch (parking brake operation detection means) 2 ... Brake pedal switch (brake operation detection means) 3 ... Ignition switch 4 ... Door switch (door open state detection means, door closed state detection means) ) 5 ... Vehicle speed detecting section (vehicle speed detecting means) 6 ... Seat forward switch 7 ... Seat backward switch 8 ... Memory switch 9 ... Seat position detecting section 10 ... Seat motor (seat driving means) 11 ... Control unit (control means)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masakazu Imai             Nissan, Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Nissan             Inside the automobile corporation F-term (reference) 3B087 AA04 BA02

Claims (5)

[Claims] 1. A seat driving means for moving a seat of a vehicle in a front-rear direction of the vehicle, a brake operation detecting means for detecting whether or not a brake pedal of the vehicle is operated, and a brake pedal for detecting the brake pedal by the brake operation detecting means. Control means for prohibiting movement of the seat to the rear of the vehicle by the seat drive means when it is detected that the seat is operated,
A seat drive control device for a vehicle. 2. A parking brake operating state detecting means for detecting whether or not a parking brake of a vehicle is operating, wherein the control means operates the parking brake by the parking brake operating detection detecting means. 2. The vehicle seat drive control device according to claim 1, wherein movement of the seat by the seat drive means is prohibited when the fact is not detected. 3. A vehicle speed detecting means for detecting a vehicle speed, wherein the control means detects the vehicle speed when the brake operation detecting means detects that a brake pedal is not operated. 3. The vehicle seat drive control device according to claim 1, wherein movement of the seat by the seat drive means is prohibited when the vehicle speed detected by the means is equal to or higher than a predetermined value. 4. The seat drive system further comprises door open state detection means for detecting that the vehicle door is in the door open state, and door closed state detection means for detecting that the vehicle door is in the door closed state. In the case where the movement of the seat is not prohibited by the control means, the door open state detection means detects that the vehicle door is in the open state, and then the closed door state detection means detects the vehicle door. When it is detected that the door is in the closed state, the seat is moved to the front of the vehicle to a predetermined setting position, and the door closed state detecting means detects that the door of the vehicle is in the closed state. When the door open state detecting means detects that the vehicle door is in the open state,
The vehicle seat drive control device according to any one of claims 1 to 3, wherein the seat is moved rearward of the vehicle to a predetermined retracted position. 5. A seating state detecting means for detecting whether or not an occupant is seated on a seat of the vehicle, wherein the seat drive means is provided when the movement of the seat is not prohibited by the control means. When it is detected that the occupant is not seated in the seat by the seating state detection means, the seat is moved to the front of the vehicle to a preset position. If the occupant is not seated in the seat after the occupant is detected by the seating state detection means, the seat is moved rearward of the vehicle to a predetermined retracted position. The vehicle seat drive control device according to any one of claims 1 to 3.