JP2007152997A - Seat position automatic adjustment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat position automatic adjustment device which more easily adjusts a position of a seat without useless operation by a driver. <P>SOLUTION: A weight of a driver and a driving position desired by the driver are associated with each other and are stored as seating data. The seating data having the weight within a specified range (for example, error 10%) of the detected wight is detected by detecting the weight of the driver seated on a driver's seat 1, and the driver's seat 1 is automatically moved to the driving position included in the detected seating data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a seat position automatic adjustment device that automatically adjusts the position of a seat of an automobile.

  In recent years, various seat adjustment devices have been proposed in order to adjust the seat of an automobile to a position that is optimal for the driver, that is, a position that is easy to drive. For example, Patent Document 1 discloses a driving attitude adjustment of an automobile that adjusts a driving attitude of a driver seated on a driver seat by adjusting a position of a device or the like operated by a driver seated on the seat of the automobile corresponding to the seat position. An apparatus is disclosed. According to Patent Document 1, the position of the vehicle-mounted member can be adjusted according to the body shape, preference, etc. of the driver sitting on the seat, and further, the confirmation point when adjusting the seat position with respect to the driver by the guide means And an adjustment procedure including an appropriate order is instructed. Accordingly, even a driver who is unfamiliar with the position adjustment can efficiently adjust the position of the seat, so that the driver can be adjusted to an appropriate driving posture.

JP 2005-313784 A

  However, in the case of an automobile used by various drivers, the device of Patent Document 1 requires that the seat position be adjusted each time each driver sits on the seat, which is troublesome for the driver. It was.

  SUMMARY OF THE INVENTION An object of the present invention is to propose an automatic seat position adjusting device that can adjust the position of a seat more easily without a driver performing unnecessary operations.

Means and effects for solving the problems

  In order to achieve the above object, according to a first aspect of the present invention, there is provided an automatic seat position adjusting apparatus for an automobile that moves a driving seat that can be moved to a plurality of driving positions to a stored driving position. Data storage means for associating and storing the desired driving position as seating data, weight detection means for detecting the weight of the driver seated on the driving seat, and weight within a predetermined range of the weight detected by the weight detection means Data detection means for detecting the seating data from the data storage means, and seat control means for automatically moving the driving seat to the driving position included in the seating data detected by the data detection means are provided.

  According to this configuration, when seating data having a weight within a predetermined range of the weight of the driver seated on the driving seat is detected, the driving seat automatically moves to the driving position included in the seating data. ing. In other words, if the driver's optimal driving position and the driver's weight are set in advance, the driver's seat will automatically move to the driver's optimal position just by sitting on the driver's seat. It has become. Therefore, each time the driver sits on the driving seat, the driver may be able to start driving without performing a troublesome operation such as moving the driving seat to an optimum position for the driver.

  Further, the second invention further includes a running state detecting means for detecting a running state in the first invention, and the seat control means has changed from a state in which the running state detecting means cannot run to a runnable state. When this is detected, the driving seat is moved to the driving position.

  According to this configuration, when the vehicle is ready to travel, the driving seat moves to the driving position optimal for the driver. If the driver's seat moves to the driving position just by sitting on the driver's seat, the driver may have difficulty getting on / off, for example, when the driver's seat is immediately seated on the driver's seat. For this reason, such a problem may be solved by moving the driving seat when the vehicle is ready to travel.

  Further, in the third aspect of the invention, the traveling state detecting means of the second aspect of the invention detects the shift position of the engine state detecting means for detecting start and stop of the engine and the automatic transmission for transmitting the driving force of the engine to the drive wheels. A shift position detection means, and when the engine state detection means detects the start of the engine and the shift position detection means detects that the shift position is a travelable position, the travel state can travel. It is characterized in that it is judged that it is in a bad state.

  According to the above configuration, when the engine is started and the shift position of the automatic transmission becomes a travelable position, the driving seat moves to the driving position. The traveling position is a position where the driving force of the engine is transmitted to the driving wheels and the vehicle can start traveling. In other words, the driving seat is moved to the optimum position for the driver when the vehicle is in the running start state. Since the driver may get on and off even when the engine is started, if the driver moves the driver's seat just by sitting on the driver's seat, the driver may have difficulty getting on and off. For this reason, such a problem may be solved by moving the driving seat when starting to travel.

  According to a fourth aspect of the invention, in the second or third aspect of the invention, when the seat control means detects that the travel state detection means has changed from a travelable state to a travel impossible state, the driving seat is automatically set in advance. It is characterized by moving to a set boarding / exiting position.

  According to the above configuration, the driving seat moves to a preset boarding / alighting position when the vehicle is in an inoperable state. This may make it easier for the driver to get on and off the vehicle in a state where it cannot travel, for example, by simply stopping the engine or raising the side brake.

  Further, in the fifth invention, the running state detecting means of the fourth invention further includes side brake detecting means for detecting locking and releasing of the side brake, and the engine detecting means detects stop of the engine, and shift position When the detection means detects that the shift position is a position where travel is impossible, and further, when the side brake detection means detects that the side brake is released, it is determined that the travel state has become impossible to travel. It is a feature.

  According to this configuration, when the engine is started, when the engine is stopped and the shift position of the automatic transmission is not allowed to run and the side brake is released, the driving seat is set in a predetermined getting-on / off position. Move to position. Thereby, the driver may easily get on and off.

  An embodiment of the present invention will be described below with reference to FIGS.

  The automatic seat position adjustment apparatus of the present embodiment is an apparatus that is provided in a driving room 100 provided with a driver's seat 1 and that automatically moves the driver's seat 1 to a driver's desired position. As shown in FIG. 1, the driver's seat 1 on which the driver is seated includes a seat portion 1a that supports the driver's bottom, a seat back 1b that extends upward from the rear edge of the seat portion 1a, and an upper end of the seat back 1b. And a headrest 1c disposed on the edge. The seat portion 1a and the seat back 1b are provided with a reclining mechanism 1d, and the tilt angle of the seat back 1b with respect to the seat portion 1a can be changed by the reclining mechanism 1d. A seat position adjusting mechanism 10 (see FIG. 2) is provided below the seat portion 1a. The seat position adjusting mechanism 10 is configured to be able to slide the driver's seat 1 back and forth so that the driver's seat 1 can be moved to a driver's desired position. The sheet position adjusting mechanism 10 will be described in detail later.

  A shift lever housing 2 is provided at the front left of the driver's seat 1. A lever guide groove 2a is formed in the shift lever housing 2, and a shift lever 3 for switching the shift state of an automatic transmission (not shown) is inserted into the lever guide groove 2a so as to be movable in the front-rear direction. Is provided. A side brake 4 is disposed on the left side of the driver's seat 1 and behind the shift lever housing 2. A handle 5 is provided in front of the driver's seat 1. A key cylinder (not shown) for inserting an ignition key is provided on the right front side of the handle 5. When the ignition key is inserted into the key cylinder and turned one step, the main switch is turned on. When the ignition key is turned further, the starter motor rotates, that is, the engine starts. A display device 6 is provided on the left side of the handle 5. The display device 6 displays a road map or a setting screen (see FIG. 3) for setting a sheet position adjusting mechanism 10 described later. Note that the display device 6 has a touch panel so that the sheet position adjustment mechanism 10 can be set according to the displayed setting screen. A door 7 is provided on the right side of the driver's seat 1.

  Various sensors are provided in the automobile of the present embodiment. The driver seat 1 is provided with a weight sensor 50. The weight sensor 50 is provided in the seat part 1a of the driver's seat 1, and can detect the weight applied to the seat part 1a (the weight of the driver). That is, the weight sensor 50 can detect whether the driver is sitting in the driver's seat 1 or not.

  A shift sensor 51 that detects the shift position of the shift lever 3 is provided in the shift lever housing 2. The shift position includes a D position (drive range) in which the vehicle can travel, a P position (parking range), an N position (neutral range), and the like in which the vehicle cannot travel.

  A starter sensor 52 is provided in the key cylinder, and an ignition key is inserted into the key cylinder and rotated to detect whether the starter motor has rotated or stopped, that is, whether the engine has been driven or stopped. It is like that.

  Further, the side brake 4 is provided with a side brake sensor 53, which detects whether the side brake 4 has been lifted and applied or released.

  Each of these sensors outputs a detection signal to the ECU 30 described later.

(Setting screen)
Further, as will be described in detail later, when the driving position of the driver seated in the driver's seat 1 is not set, a setting screen as shown in FIG. 3 is displayed on the display device 6. The driving position is the position of the driver's seat 1 where the driver can easily drive. Since the seating data of the seated driver is not found on the setting screen, a message 61 indicating that the seat position is set, the weight value 62 of the driver detected by the weight sensor 50, and the operation button 63 of the driver seat 1 A setting button 64 is displayed. The display device 6 has the touch panel as described above, and a signal assigned to the area is input by pressing the screen area displayed so as to be pressed. The operation button 63 and the setting button 64 are displayed so as to be pressed.

  The operation button 63 includes a “front” button and a “rear” button. When the “front” button is pressed, the driver's seat 1 moves forward, and when the “rear” button is pressed, the driver's seat 1 moves rearward. It is supposed to move. As a result, the driver can move the driver's seat 1 to an optimal position. When the setting button 64 is pressed, the weight 62 on the setting screen and the moved position of the driver's seat 1 are stored as seating data.

(Sheet position adjustment mechanism)
Next, the seat position adjusting mechanism 10 that slides the driver's seat 1 back and forth will be described in detail.

  The seat position adjusting mechanism 10 has a pair of left and right sliders 11 provided below the seat portion 1a. The slider 11 extends in the front-rear direction with respect to the vehicle body, and holds the seat portion 1a in a slidable manner. Bearings 12 and 13 are disposed on the upper surface of the slider 11 at the front and rear, respectively. The front part and the rear part of the seat part 1a are rotatably attached to the bearings 12 and 13 by bolts 12a and 13a.

  A block 14 having a female thread is fixed to the slider 11, and the block 14 is screwed into a screw rod 15 extending in parallel with the slider 11. The screw rod 15 is rotated forward and backward by a sheet moving motor 17 via a gear box 16.

  When the screw rod 15 rotates forward and backward, the block 14 is screwed back and forth, and the slider 11 moves in the front-rear direction. And when the slider 11 moves back and forth, the seat part 1a currently hold | maintained at the slider 11 moves back and forth integrally. That is, the driver's seat 1 moves back and forth.

  The block 14 is provided with a position sensor 20. The position sensor 20 inputs a position signal indicating the position of the driver's seat 1 in the front-rear direction to the ECU 30 described later. The seat moving motor 17 is also connected to the ECU 30 and is driven to rotate in forward and reverse directions based on a signal from the ECU 30.

(ECU: Electrical Control Unit)
Each of the above devices is controlled by an ECU (Electrical Control Unit) 30. As shown in FIG. 4, the ECU 30 is connected with the above-described sensors (weight sensor 50, shift sensor 51, starter sensor 52, side brake sensor 53), seat position adjustment mechanism 10, and display device 6. A detection signal is input from the sensor, and a control signal or the like is input to or output from the seat position adjusting mechanism 10 or the display device 6.

  The ECU 30 receives a CPU (Control Processing Unit) 31 that executes various arithmetic processes such as a processing routine shown in FIG. 5 described later, and a ROM 32 (Read Only Memory) that stores various initial settings and programs executed by the CPU. A RAM 33 (Random Access Memory) that stores various information and the like in an rewritable manner, and a nonvolatile memory 34 that stores set seating data and the like in a rewritable manner are provided.

  The non-volatile memory 34 stores seating data, getting-on / off position data, and the like. The seating data is data in which the weight of the driver is associated with the optimal driving position for the driver. As will be described in detail later, when the driver is seated on the driver's seat 1, the weight is detected, and seating data having a weight that matches the weight is detected from the nonvolatile memory 34. Then, the driver's seat 1 moves to the driving position of the detected seating data. That is, the non-volatile memory 34 stores the optimum driving position set by each driver. The getting-on / off position data is the position of the driver's seat 1 where the driver can easily get on and off. Although the description will be made assuming that the boarding / alighting position data of the present embodiment is set in advance, each driver may set the boarding / alighting position when the driving position is set and store it as seating data.

  The ECU 30 is supplied with electric power when the engine rotates, but when the engine is stopped, electric power is supplied from the auxiliary power source, and the engine is stopped. Even it is supposed to work. The auxiliary power supply is charged when the engine rotates.

(ECU operation: seat adjustment processing routine)
Next, the operation of the ECU 30 will be described. The ECU 30 executes the sheet movement process routine of FIG.

  In the seat movement processing routine shown in FIG. 5, it is first determined whether or not a driver's seating is detected (A1). That is, it is determined whether or not a signal is input from the weight sensor 50. When seating is not detected (A1: NO), it waits until it is detected. When seating is detected (A1: YES), the weight (body weight) of the driver is detected, and seating data having a weight that matches the detected weight is detected from the nonvolatile memory 34 (A2).

  Then, it is determined whether seating data having a weight that matches the detected weight is stored in the nonvolatile memory 34 (A3). Here, the weight that matches the detected weight means a weight within a predetermined range of the detected weight, for example, an error of 10%. Since the driver's weight changes depending on the physical condition and clothes of the day, the sitting data may not be detected even if the sitting driver has already set the sitting data. For this reason, seating data may be more reliably detected by providing an error in the detected weight. The detected weight error may be set in advance, or may be set by the driver when seating data is set. Alternatively, it may be set when the driver's seat 1 is seated.

  When the seating data is stored in the nonvolatile memory 34 (A3: YES), it is subsequently determined whether or not the engine has been started (A4). That is, it is determined whether the starter sensor 52 has detected the rotation of the starter motor. If the engine has not been started (A4: NO), the system waits until it starts. When the engine is started (A4: YES), it is next determined whether or not the shift lever 3 is in the D position (A5). That is, it is determined whether or not the shift sensor 51 has detected that the position of the shift lever 3 is in the D position. When the shift lever 3 is not in the D position (A5: NO), that is, when the shift lever 3 is in the P position or the N position, the process waits until the shift lever 3 reaches the D position. When the shift lever 3 is in the D position (A5: YES), the driver's seat 1 is moved to the driving position included in the detected seating data (A6). Specifically, the seat moving motor 17 of the seat position adjusting mechanism 10 is driven to move the driver seat 1. And it transfers to A10.

  If the seating data is not stored in the nonvolatile memory 34 at A3 (A3: NO), it is determined that a new driver is seated, and the setting screen shown in FIG. 3 is displayed on the display device 6 (A7). ). Then, it is determined whether or not the setting is completed (A8). That is, it is determined whether or not the driver presses the operation button 63 on the setting screen, moves the driver's seat 1 to the optimum driving position, and presses the setting button 64. If the setting has not been completed (A8: NO), the process waits until the setting is completed. When the setting is completed (A8: YES), the weight detected by the weight sensor 50 and the set driving position of the driver's seat 1 are stored in the nonvolatile memory 34 as new seating data (A9). And it transfers to A10.

  Thus, the driver who has already stored the seating data can automatically move the driver's seat 1 to the driving position simply by sitting on the driver's seat 1 and making it ready for traveling. In addition, if the driver's seat 1 is moved only by being seated in the driver's seat 1, the driver's seat 1 may move even if a luggage is placed on the driver's seat 1, and getting on and off may be difficult. Such a problem may be solved by not moving until it becomes. Furthermore, when there is no seating data, the setting screen is automatically displayed on the display device 6, so that the driver may be able to easily set his / her data.

  Next, in A10, it is determined whether or not the shift lever 3 is in the P position (A10). That is, it is determined whether or not the shift sensor 51 has detected that the position of the shift lever 3 is at the P position. If the shift lever 3 is not in the P position, it waits until the shift lever 3 is in the P position. If the shift lever 3 is in the P position (A10: YES), it is next determined whether or not the engine has stopped (A11). Specifically, it is determined whether or not the starter sensor 52 has detected that the starter motor has stopped rotating. If the engine is not stopped (A11: NO), it waits until it stops. When the engine is stopped (A11: YES), it is subsequently determined whether or not the side brake 4 is operated (A12). When the side brake 4 is not actuated (A12: NO), it waits until it is actuated. When the side brake 4 is actuated (A12: YES), the driver's seat 1 is moved to the getting on / off position (A13). Then, this routine ends.

  Accordingly, the driver cannot move the vehicle, that is, the engine is stopped, the shift lever 3 is put in the P position, and the driver's seat 1 moves to a position where the driver can easily get on and off just by applying the side brake. Getting on and off may be easier.

(Modification)
In this embodiment, seating data having a weight within a predetermined range of the detected weight is detected. However, when there are a plurality of weights within the predetermined range, the seating data having the closest weight is detected. You may make it do. In addition, every time the sitting data is detected, the weight of the sitting data may be overwritten so that the latest weight is always stored, or the average value of the weight detected so far is stored every time the user sits. You may make it go. Furthermore, it may be provided with a sensor or the like for detecting the seat height of the driver seated in the driver's seat, and the seating data may be detected based on the weight and the seat height position. In this case, it may be possible to detect the seating data of the driver who is seated more reliably.

  Further, when setting the seating data, the ID number, the driver's name, etc. may be set simultaneously. In this case, the user may be able to search his / her seating data when he / she wants to correct the seating data or delete the seating data. Further, when the driver's seat 1 moves to the driving position, the driver can determine whether or not the driving position is set by displaying the ID number set by the driver on the display device 6. There is.

  The driver may manually input the seating data from the display device 6 or the like. In addition, the nonvolatile memory 34 is a detachable memory, and even when using another vehicle equipped with the seat position automatic adjustment device of the present embodiment, a memory storing its own seating data is mounted. And may be used. In this case, once the seating data is stored in the memory, it is not necessary to set the seating data again when using another vehicle, and the driver's trouble may be saved.

  Further, in the present embodiment, the driver's seat 1 is moved to the driving position when the vehicle is ready to travel, but the driver is moved only by being seated on the driver's seat 1. It may be. Further, a sensor for detecting opening / closing of the door 7 is provided so that when the door is closed, the driver's seat 1 is moved to the driving position, and when the door 7 is opened, the driver's seat 1 is moved to the getting-on / off position. Well, they can be changed as appropriate.

(Outline of this embodiment)
As described above, in the present embodiment, in the automatic seat position adjustment device for a vehicle that moves a driving seat (driver's seat 1) that can be moved to a plurality of driving positions to a stored driving position, the weight and driving of the driver. Data storage means (non-volatile memory 34) for storing the driving position desired by the driver in association with the seating data, weight detection means (weight sensor 50) for detecting the weight of the driver seated on the driver's seat, and weight detection Data detecting means (ECU 30) for detecting seating data having a weight within a predetermined range (for example, error 10%) of the body weight detected by the means from the data storage means, and a driving position included in the seating data detected by the data detecting means. Seat control means (seat position adjusting mechanism 10) for automatically moving the driving seat And it has a configuration which includes a.

  According to this configuration, when seating data having a weight within a predetermined range of the weight of the driver seated on the driving seat is detected, the driving seat automatically moves to the driving position included in the seating data. ing. In other words, if the driver's optimal driving position and the driver's weight are set in advance, the driver's seat will automatically move to the driver's optimal position just by sitting on the driver's seat. It has become. Therefore, each time the driver sits on the driving seat, the driver may be able to start driving without performing a troublesome operation such as moving the driving seat to an optimum position for the driver.

  Further, the present embodiment further includes traveling state detection means (weight sensor 50, shift sensor 51, starter sensor 52) for detecting the traveling state, and the traveling state detection means cannot travel the seat control means. When it is detected that the vehicle is ready to travel from the state, the driving seat is moved to the driving position.

  According to this configuration, when the vehicle is ready to travel, the driving seat moves to the driving position optimal for the driver. If the driver's seat moves to the driving position just by sitting on the driver's seat, the driver may have difficulty getting on / off, for example, when the driver's seat is immediately seated on the driver's seat. For this reason, such a problem may be solved by moving the driving seat when the vehicle is ready to travel.

  Further, according to the present embodiment, the shift state of the engine state detecting means (starter sensor 52) for detecting the start and stop of the engine and the automatic transmission for transmitting the driving force of the engine to the driving wheels is detected in the present embodiment. A shift position detecting means (shift sensor 51) for detecting, when the engine state detecting means detects the start of the engine, and the shift position detecting means detects that the shift position is a travelable position. In addition, it is configured to determine that the traveling state has become a state capable of traveling.

  According to this configuration, when the engine is started and the shift position of the automatic transmission becomes a travelable position, the driving seat moves to the driving position. The traveling position is a position where the driving force of the engine is transmitted to the driving wheels and the vehicle can start traveling. In other words, the driving seat is moved to the optimum position for the driver when the vehicle is in the running start state. Since the driver may get on and off even when the engine is started, if the driver moves the driver's seat just by sitting on the driver's seat, the driver may have difficulty getting on and off. For this reason, such a problem may be solved by moving the driving seat when starting to travel.

  Further, in the present embodiment, the seat control means has changed from the state in which the traveling state detecting means (the weight sensor 50, the shift sensor 51, the starter sensor 52, and the side brake sensor 53) can travel to the state in which traveling is not possible. When this is detected, the driving seat is automatically moved to a preset boarding / exiting position.

  According to the above configuration, the driving seat moves to a preset boarding / alighting position when the vehicle is in an inoperable state. This may make it easier for the driver to get on and off the vehicle in a state where it cannot travel, for example, by simply stopping the engine or raising the side brake.

  Further, in the present embodiment, the traveling state detecting means further includes side brake detecting means (side brake sensor 53) for detecting locking and releasing of the side brake, and the engine detecting means detects stop of the engine. When the shift position detecting means detects that the shift position is a non-travelable position, and when the side brake detecting means detects the release of the side brake, it is determined that the driving state has become impossible to drive. It is the composition to do.

  According to this configuration, when the engine is started, when the engine is stopped and the shift position of the automatic transmission is not allowed to run and the side brake is released, the driving seat is set in a predetermined getting-on / off position. Move to position. Thereby, the driver may easily get on and off.

  Although the present invention has been described in the preferred embodiments above, the present invention is not so limited. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

Schematic of a driver's room provided with the seat position automatic adjustment device of the present invention. FIG. 2 is a perspective view of a seat position adjusting mechanism provided in the driver seat shown in FIG. 1. The schematic diagram of the setting screen displayed on a display apparatus. The block diagram which shows the electric constitution of a seat position adjustment apparatus. The figure which shows the flowchart of a sheet | seat movement process routine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Driver's seat 3 Shift lever 4 Side brake 5 Handle 6 Display device 50 Weight sensor 51 Shift sensor 52 Starter sensor 53 Side brake sensor

Claims (5)

In a vehicle seat position automatic adjustment device for moving a driving seat that can be moved to a plurality of driving positions to a stored driving position,
Data storage means for storing the weight of the driver and the driving position desired by the driver as seating data in association with each other;
Weight detection means for detecting the weight of the driver seated on the driving seat;
Data detection means for detecting the seating data having a weight within a predetermined range of the weight detected by the weight detection means from the data storage means;
A seat position automatic adjusting device, comprising: seat control means for automatically moving the driving seat to a driving position included in the seating data detected by the data detecting means. It further comprises a running state detection means for detecting the running state,
The sheet control means includes
2. The automatic seat position adjusting device according to claim 1, wherein the driving seat is moved to the driving position when the driving state detecting unit detects that the driving state is changed from the non-driving state to the driving state. . The running state detection means is
Engine state detection means for detecting engine start and stop;
Shift position detecting means for detecting the shift position of the automatic transmission that transmits the driving force of the engine to the drive wheels,
When the engine state detection means detects the start of the engine and the shift position detection means detects that the shift position is a travelable position, the travel state becomes a travelable state. The seat position automatic adjustment device according to claim 2, wherein the determination is performed. The sheet control means includes
The driving seat is automatically moved to a preset boarding / alighting position when the driving state detecting means detects that the driving state is changed from a driving state to a driving impossible state. 3. The seat position automatic adjustment device according to 3. The running state detecting means is
It further has side brake detection means for detecting locking and release of the side brake,
The engine detection means detects stop of the engine, the shift position detection means detects that the shift position is a non-travelable position, and the side brake detection means releases the side brake. 5. The position automatic adjustment device according to claim 4, wherein upon detection, it is determined that the traveling state is a state where traveling is impossible.

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