JP2007253808A - Driving posture adjusting device, automobile, and driving posture adjusting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driving posture adjusting device, an automobile, and a driving posture adjusting method capable of adapting the driving posture to a driver by adjusting the state of a driver's seat or the like based on the estimated driving posture. <P>SOLUTION: The driving posture adjusting device comprises a physique factor acquisition means for acquiring physique factors of a driver (Step S2), a flexibility estimation means for estimating the physical flexibility of the driver (Step S5 and Step S6), a driving operational characteristic estimation means for estimating the characteristics of the driving operation of the driver, and a driving posture estimation means for estimating the driving posture of the driver when seated in a driver's seat (Step S7 and Step S8). By adjusting the state of the driver's seat or the like based on the estimated driving posture (Step S9 to Step S13), the driving posture can be adapted to the driver. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a driving posture adjusting device, a vehicle, and a driving posture adjusting method for adjusting a driving posture of a driver.

Patent Document 1 discloses a technique for correcting a driver's field of view and posture when the physique is different. In this technique, in the case of a driver having a small physique, the driver seat is moved forward and upward while the pedal is moved backward. Thus, the pedal operability that is not affected by the physique is secured while the driver's eye position (also referred to as an eye point) is set to an appropriate height.
JP-A-7-96784

In the technique of Patent Document 1, the position of the driver's seat or the like is controlled so that the driving posture is in accordance with the driver's physique. However, the driving posture is not determined only by the physique of the driver, but is determined by various characteristics of the driver.
An object of the present invention is to make the driving posture more suitable for the driver.

In order to solve the above problems, the present invention provides:
The physique factor acquisition means for acquiring the physique factor of the driver, the flexibility estimation means for estimating the flexibility of the driver's body, the driving operation characteristic estimation means for estimating the driving operation characteristics of the driver, and the physique factor Based on the physique factor acquired by the acquisition means, the flexibility estimated by the flexibility estimation means, and the characteristics of the driving operation estimated by the driving operation characteristic estimation means, the driving posture of the driver when seated in the driver's seat is estimated. Driving posture estimation means.
The present invention also provides:
The driving posture derived from the physique of the driver is corrected based on the flexibility of the driver's body and the characteristics of the driving operation of the driver, and the driving posture of the driver when seated in the driver's seat is estimated It is said.

ADVANTAGE OF THE INVENTION According to this invention, the driving posture which considered the driver | operator's physique factor, a driver | operator's body flexibility, and the driver | operator's driving | operation characteristic can be estimated. This allows the driver to adjust the driving posture by adjusting the state of the driver's seat etc. based on the driving posture estimated by the driver's physique factors, the driver's body flexibility and the driver's driving operation characteristics. Can be adapted.
Further, according to the present invention, the driving posture derived from the physique of the driver is corrected based on the flexibility of the driver's body and the characteristics of the driving operation of the driver. By estimating the driving posture, the state of the driver's seat or the like is adjusted based on the estimated driving posture, and the driving posture can be adapted to the driver.

The best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described in detail with reference to the drawings.
This embodiment is a vehicle equipped with a driving posture adjusting device to which the present invention is applied.
(Constitution)
1 and 2 show the configuration of the driving posture adjusting device. FIG. 1 is a side view of a vehicle structure provided with a driving posture adjusting device, and FIG. 2 is a plan view of the vehicle structure provided with a driving posture adjusting device.

  As shown in FIGS. 1 and 2, the driving posture adjusting device is roughly divided into a vehicle floor (fixed side floor) 1 and a movable floor 21 to which an accelerator pedal 2 and a brake pedal 3 are attached. A movable floor displacement mechanism 40 that displaces the movable floor 21, a seat height adjustment mechanism 50 that adjusts the height of the driver seat 4, a seat back angle adjustment mechanism 70 that adjusts the angle of the back 4b of the driver seat 4, A steering vertical position adjusting mechanism 81 that adjusts the vertical position of the steering 5, a steering longitudinal position adjusting mechanism 82 that adjusts the position of the steering 5 in the longitudinal direction of the vehicle, and a steering angle adjusting mechanism 83 that adjusts the angle of the steering in the longitudinal direction of the vehicle. And comprising. For example, the steering vertical position adjusting mechanism 81 and the steering angle adjusting mechanism 83 are realized as a tilt mechanism, and the steering front / rear position adjusting mechanism 82 is realized as a telescopic mechanism.

(Movable floor)
On the movable floor 21, the accelerator pedal 2 and the brake pedal 3 are attached to a foot placement portion 21a having a substantially square plate shape. The foot placement portion 21a is disposed in parallel to the vehicle floor 1, and the support portion 21b is pushed up obliquely rearward from the rear end of the foot placement portion 21a. An accelerator pedal 2 and a brake pedal 3 are attached to the front end portion of the foot placement portion 21a.
Similar to a general accelerator pedal, the accelerator pedal 2 is rotatable about the lower end of the accelerator pedal 2 and attached to the footrest 21a of the movable floor 21. The accelerator pedal 2 is an electronic throttle and is not mechanically connected to an engine (not shown). Since it is not mechanically connected to the engine, the accelerator pedal 2 can be moved freely.

The brake pedal 3 is attached to the foot placement portion 21 a of the movable floor 21 so as to be rotatable with the lower end as a fulcrum, similarly to a general brake pedal. The brake pedal 3 is configured using a so-called by-wire system, and is connected to the booster 32 and the master cylinder 33 by a flexible cable 31. By connecting the booster 32 and the master cylinder 33 with the flexible cable 31, the brake pedal 3 can be moved freely.
The driver can adjust the braking / driving force of the vehicle by depressing the accelerator pedal 2 and the brake pedal 3.

(Movable floor displacement mechanism)
As the movable floor displacement mechanism 40, a slide rail 41a is provided below the seat cushion 4a of the driver's seat 4 for the driver. The slide rails 41a are paired on the left and right sides, and are arranged obliquely so as to be parallel to the vehicle front-rear direction and the rear end side being higher. Here, substantially triangular frame members (seat frames) 41 are provided on the left and right sides of the seat cushion 4a so as to be parallel in the vehicle front-rear direction. One side of the frame member 41 is attached to the back surface of the seat cushion 4 a, and the other side 41 a is thus inclined with respect to the vehicle floor 1. The other side 41a forms a slide rail 41a.

  The left and right ends of the support portion 21b of the movable floor 21 are engaged with the pair of slide rails 41a. Then, driving means (for example, a motor, hereinafter referred to as a movable floor displacement driving motor) 42 for moving the support portion 21b on the slide rail 41a is provided. The driving of the movable floor displacement driving motor 42 is controlled by the attitude adjusting unit 100 as described later.

  In the movable floor displacement mechanism 40 configured as described above, the movable floor 21 is moved back and forth by driving the movable floor displacement drive motor 42 so that the support portion 21b of the movable floor 21 slides and moves on the slide rail 41a. It moves in the vertical direction while moving in the direction. As a result, the accelerator pedal 2 and the brake pedal 3 move together with the movable floor 21.

(Sheet height adjustment mechanism)
The seat height adjusting mechanism 50 has a structure in which the driver's seat 4 is moved up and down by an X link constituted by a pair of link members. That is, the intermediate part of both the link members 51 and 52 is rotatably connected by the connecting shaft 53, and both end parts of both the link members 51 and 52 are connected to the vehicle floor 1 and the seat cushion 4a, respectively.
Specifically, the upper end portion of one link member 51 is pivotally connected to the rear end portion of the back surface of the seat cushion 4a by the pin 58, specifically, to the frame member 41. A lower end portion is rotatably connected to a vehicle floor 1, specifically, an attachment member 57 provided on the vehicle floor 1 by a pin 56.

  The other link member 52 has a guide hole 55 formed at its upper end extending in the vehicle front-rear direction on the front side of the back surface of the seat cushion 4a by a pin 54, specifically, a guide hole provided in the frame member 41. 55, the pin 54 is slidable with respect to the guide hole 55, and a lower end of the pin 54 is formed in the vehicle floor 1 by the pin 59 so as to extend in the vehicle front-rear direction. 60, specifically connected to the guide hole 60 of the mounting member 57 provided on the vehicle floor 1, and the pin 59 is slidable with respect to the guide hole 60.

  The seat height adjusting mechanism 50 supports the driver's seat 4 with respect to the vehicle floor 1 with a pair of left and right X links formed by the pair of link members 51 and 52. In the seat height adjusting mechanism 50, driving means (for example, a motor, hereinafter referred to as a seat vertical movement driving motor) 61 is provided with a pin 59 that rotatably supports the other link member 52 on the vehicle floor 1 as a rotational drive shaft. It is driven by rotation. That is, the seat vertical movement driving motor 61 is driven to move the pin 59 within the guide hole 60. The driving of the seat vertical movement driving motor 61 is controlled by the posture adjusting unit 100 as described later.

  In the seat height adjusting mechanism 50 configured as described above, the driver's seat 4 is moved in the diagonally up and down direction in the vehicle front-rear direction by the X link. That is, the driver's seat 4 moves in an upward oblique direction when moving in the front direction of the vehicle, and moves in an oblique downward direction when moving in the rear direction of the vehicle. Further, when the seat drive motor 61 is driven to rotate the rotation drive shaft 59, the rotation drive shaft 59 is rotated according to the rotation direction of the rotation drive shaft (the movement direction of the pin 59 in the guide hole 60) as described above. The driver's seat 4 moves in the upper oblique direction while moving in the vehicle front direction, or the driver's seat 4 moves in the lower oblique direction while moving in the vehicle rear direction. Further, since the movable floor 21 is attached to the slide rail 41 a integrated with the driver seat 4, the movable floor 21 moves up and down integrally with the driver seat 4.

(Backrest angle adjustment mechanism)
The seat back angle adjustment mechanism 70 is configured to adjust the angle of the backrest 4b of the driver seat 4 in the vehicle front-rear direction. For example, the seat back angle adjustment mechanism 70 includes a motor disposed at a joint portion between the seat cushion 4a and the backrest 4b. By driving the motor, the angle of the backrest 4b in the vehicle front-rear direction is changed. It is like that. The driving of the seat back angle adjusting mechanism 70 is controlled by the posture adjusting unit 100 as described later.

(Steering vertical position adjustment mechanism)
The steering vertical position adjusting mechanism 81 is configured to adjust the vertical position of the steering 5. For example, the steering vertical position adjusting mechanism 81 is configured by a motor disposed at the front end of the steering column 5a, and by driving the motor, the steering column 5a is rotated to move the steering 5 up and down. It has become. The steering vertical position adjustment mechanism 81 is controlled by an attitude adjustment unit 100 as described later.

(Steering front / rear position adjustment mechanism)
The steering front / rear position adjusting mechanism 82 is configured to adjust the position of the steering 5 in the front / rear direction of the vehicle. For example, the steering front / rear position adjusting mechanism 82 is configured by a motor attached to the steering column 5a. By driving the motor, the steering column 5a is moved back and forth or the length of the steering column 5a is changed. The steering 5 is moved in the longitudinal direction of the vehicle. The driving of the steering front / rear position adjusting mechanism 82 is controlled by the attitude adjusting unit 100 as described later.

(Steering angle adjustment mechanism)
The steering angle adjustment mechanism 83 is configured to adjust the vehicle longitudinal direction of the steering 5. For example, the steering angle adjusting mechanism 83 is configured by a motor disposed at a joint portion between the steering column 5a and the steering 5, and the angle of the steering 5 in the vehicle front-rear direction is changed by driving the motor. It has become. The steering angle adjustment mechanism 83 is controlled by the attitude adjustment unit 100 as described later.

(Load detection sensor)
The vehicle also includes a floor load detection sensor 91 that detects a load applied to the movable floor 21 (foot placement portion 21a) and a seat load detection sensor 92 that detects a load applied to the seat cushion 4a. For example, the floor load detection sensor 91 is a strain sensor, and detects a load applied to the foot placement portion 21a based on the distortion of the foot placement portion 21a. Further, for example, the seat load detection sensor 92 is a strain sensor attached to the frame member 41 disposed on the back of the seat cushion 4a, and detects a load applied to the seat cushion 4a based on the strain of the frame member 41. . The seat load detection sensor 92 is configured to detect a load applied by the trunk of the driver when the driver is seated on the driver seat 4. The detection values of the floor load detection sensor 91 and the seat load detection sensor 92 are input to the posture adjustment unit 100.

(Attitude adjustment unit and processing details)
The posture adjustment unit 100 includes a movable floor displacement mechanism 40 (specifically, a movable floor displacement drive motor 42), a seat height adjustment mechanism 50 (specifically, a seat vertical movement drive motor 61), and a seat back angle adjustment mechanism 70. The steering vertical adjustment mechanism 81, the steering longitudinal adjustment mechanism 82, and the steering angle adjustment mechanism 83 are driven and controlled.
The posture adjustment unit 100 includes, from various sensors including a floor load detection sensor 91 and a seat load detection sensor 92, personal information of the driver, own vehicle speed, brake operation state, steering angle, accelerator opening, brake amount (brake pedal The amount of depression) and key position, door opening, floor load, and seat load are input, and the mechanisms 40, 50, 70, 81, 82, and 83 are driven and controlled based on the various information. To do.

  For example, the driver's personal information is stored in a personal information storage unit 101 (see FIG. 1) provided on a key (not shown). Further, the key position state is detected by the key position detection unit 102, and the detected value is input to the posture adjustment unit 100. Furthermore, the opening degree of the door is detected by the door opening degree detection unit 103, and the detected value is input to the attitude adjustment unit 100.

3 and 4 show a processing procedure of the posture adjustment unit 100. FIG.
As shown in FIG. 3, when the process is started, first, in step S <b> 1, the attitude adjustment unit 100 determines whether the key position is the engine start position based on the detection value of the key position detection unit 102. Here, when the position of the key (key) starts the engine, the posture adjustment unit 100 proceeds to step S2.
In step S2, the posture adjustment unit 100 stores the driver's height h and the previous storage (stored in step S14 described later), which is the driver's physique factor, stored in the personal information storage unit 101 based on the key information. Individual characteristic indices (latest personal characteristic indices) P1 to P5 are read. Further, the posture adjustment unit 100 reads the vehicle speed.

  Here, the personal characteristic index P1 is a flexibility index (hereinafter referred to as a flexibility representative index) P1 indicating the flexibility of the driver's body. As will be described later, the first to third flexibility individual indexes P11. It is a value calculated based on a plurality of indices such as ~ P13. The personal characteristic index P2 is a driving operation smoothness index (hereinafter referred to as a driving operation smoothness representative index) P2 indicating the smoothness and softness of the driving operation. As will be described later, the first to third driving operations are performed. It is a value calculated based on a plurality of indices such as the operation smoothness individual indices P21 to P23. The personal characteristic index P3 is a driving operation stability index (hereinafter referred to as a driving operation stability representative index) P3 indicating variation in driving operation or driving skill, and as described later, the first to fifth driving. It is a value calculated based on a plurality of indices such as the operation stability individual indices P31 to P35. The personal characteristic index P4 is a driving operation abruptness index (hereinafter referred to as a driving operation abruptness representative index) P4 indicating the speed, frequency, and driver's impatient tendency of the driving operation, and will be described later. It is a value calculated based on a plurality of indices such as the first to third driving operation rapidity individual indices P41 to P43. The personal characteristic index P5 is a change index of driving operation before and after the predetermined driving scene (hereinafter referred to as a driving operation change representative index) P5 indicating the driver's sensitivity to the burden received from the predetermined driving scene, which will be described later. Thus, it is a value calculated based on a plurality of indices such as the first to third driving operation change degree individual indices P51 to P3.

Subsequently, in step S3, the posture adjustment unit 100 determines whether or not the vehicle speed read in step S1 is zero. Here, the posture adjusting unit 100 proceeds to step S4 when the host vehicle speed is zero, assuming that the vehicle is stopped. When the host vehicle speed is not zero, the posture adjusting unit 100 is assumed to be traveling as shown in FIG. Proceed to step S16.
In step S <b> 16 shown in FIG. 4, the posture adjustment unit 100 reads the steering angle, accelerator opening, and brake amount of the steering 5 during traveling.
Subsequently, in step S17, the posture adjustment unit 100 determines the first to third driving operation smoothness individual indexes P21 to P21 based on the steering angle, the accelerator opening, and the brake amount (brake pedal operation amount) read in step S16. P23 is calculated. Specifically, it is calculated as follows.

FIG. 5 shows a procedure for calculating the first driving operation smoothness individual index P21 indicating the smoothness of the steering operation based on the steering angle.
As shown in FIG. 6A, the steering angle that changes with time is filtered with a high-pass filter (for example, a high-pass filter of 0.2 Hz) as shown in FIG. For example, if the steering operation is not smooth, the value of the high frequency component increases. For the high-frequency component of the extracted steering angle, the reciprocal of the total sum of the predetermined time Tts is calculated as the first driving operation smoothness individual index P21 as shown in FIG.

FIG. 6 shows a procedure for calculating the second driving operation smoothness individual index P22 indicating the smoothness of the accelerator operation based on the accelerator opening.
As shown in FIG. 11A, the accelerator opening that changes with time is filtered with a high-pass filter (for example, a high-pass filter of 0.1 Hz) as shown in FIG. For example, if the accelerator operation is not smooth, the value of the high frequency component becomes large. Then, with respect to the extracted high frequency component of the accelerator opening, as shown in FIG. 5C, the reciprocal of the total sum of the predetermined time Tta is calculated as the second smoothness individual index P22.

FIG. 7 shows a procedure for calculating the third smoothness individual index P23 indicating the smoothness of the brake operation based on the brake amount.
As shown in FIG. 6A, the brake amount that changes with time is filtered by a high-pass filter (for example, a 0.1 Hz high-pass filter) as shown in FIG. For example, if the brake operation is not smooth, the value of the high frequency component becomes large. Then, for the high-frequency component of the extracted brake amount, the reciprocal of the total sum of the fixed time Ttb is calculated as the third smoothness individual index P23, as shown in FIG.

Subsequently, in step S18, the posture adjustment unit 100 determines the first to fifth driving operation stability individual indexes P31 to P35, the first, based on the steering angle, the accelerator opening, and the brake amount that are read in step S16. The first to third driving operation rapidity individual indexes P41 to P43 and the first to third driving operation change degree individual indexes P51 to P53 are calculated, and specifically calculated as follows.
The first to third driving operation stability individual indexes P31 to P35 are indexes indicating the stability of driving operation, respectively. Table 1 below shows the first to third driving operation stability individual indexes P31 to P35. The calculation method (contents) is shown.

  As shown in Table 1, the first driving operation stability individual index P31 is a value indicating the variation of the steering operation smoothness individual index (first driving operation smoothness individual index P21) calculated in step S17. It is calculated as a standard deviation of a predetermined number of samples (for example, 20) of the individual steering operation smoothness index. Further, the second driving operation stability individual index P32 is a value indicating the variation of the accelerator operation smoothness individual index (second driving operation smoothness individual index P22) calculated in step S17, and the smoothness of the accelerator operation. It is calculated as a standard deviation for a predetermined number of samples (for example, 20) of the individual index. The third driving operation stability individual index P33 is a value indicating the brake operation smoothness individual index (third driving operation smoothness individual index P23) calculated in step S17. It is calculated as a standard deviation for a predetermined number of samples of the index (for example, 20 pieces). Here, the greater the standard deviation, that is, the greater the variation, the lower the driving operation stability (the first to third driving operation stability individual indexes P31 to P33).

Further, the fourth driving operation stability individual index P34 is a value indicating variation in the maximum deceleration (deceleration peak value) of the host vehicle at the time of the brake operation, and is equal to a predetermined number of samples of the maximum deceleration (for example, 20). Min) standard deviation. The fifth driving operation stability individual index P35 is a value indicating variation in the maximum steering angular velocity (steering angular velocity peak value) at the time of steering operation, and is a predetermined number of samples (for example, 20) of the maximum steering angular velocity. Calculated as standard deviation.
Further, the first to third driving operation rapidity individual indexes P41 to P43 are indexes indicating the rapidity of the driving operation, respectively, and Table 2 below shows the first to third driving operation rapidity individual indexes P41 to P43. The calculation method (contents) of is shown.

  As shown in Table 2, the first driving operation rapidity individual index P41 is a value indicating the speed of the steering operation, and is a predetermined number of samples (for example, 20) of the maximum steering angular velocity (steering angular velocity peak value) during the steering operation. It is calculated as the average value of the number of pieces). Further, the second driving operation abruptness individual index P42 is calculated as the number of times (frequency) that the steering angle of the steering wheel 5 is equal to or greater than a predetermined steering angle within a predetermined time. The third rapidity individual index P43 is calculated as the number of turn signal operations (frequency) within a certain time.

  The first to third driving operation change degree individual indexes P51 to P53 are values indicating the change degree of the driving operation before and after a predetermined driving scene (driving operation scene), respectively. Here, the predetermined traveling scene is before and after the traveling scene that increases the burden of driving operation, for example, a curved road. Specifically, the first to third driving operation change degree individual indexes P51 to P53 are calculated as follows. That is, the first driving operation change degree individual index P51 is a value indicating the change degree of the steering operation before and after a predetermined traveling scene, and is calculated by the following equation (1).

P51 = P21 after a predetermined traveling scene / P21 before a predetermined traveling scene (1)
FIG. 8 shows the first driving operation smoothness individual index P21 after the predetermined driving scene (after passing the curve) and the values before the predetermined driving scene (before passing the curve or before the curve) when the predetermined driving scene is a curved road. The calculation procedure with 1 driving | operation smoothness separate parameter | index P21 is shown.
As shown in FIG. 8, the first driving operation smoothness individual index P21 calculated as described with reference to FIG. 5 before the curve section and the description with reference to FIG. 5 after passing the curve section. The first driving operation smoothness individual index P21 calculated as described above is calculated. Then, based on each first driving operation smoothness individual index P21 obtained before and after the curve section as described above, the first driving operation change degree individual index P51 is calculated by the equation (1).

  One stimulus to the driver, such as driving the vehicle in a curve, affects the driving operation of the driver and changes the driving operation. This change is greatly influenced by the driver's sensitivity. . For this reason, the ratio between P21 after the predetermined traveling scene and P21 before the predetermined traveling scene (P21 after the predetermined traveling scene / P21 before the predetermined traveling scene) is influenced by the driver's sensitivity. Thus, the first driving operation change degree individual index P51 is a value indicating sensitivity.

The second change degree individual index P52 indicates the change degree of the accelerator operation before and after the predetermined traveling scene, and the second change degree individual index P52 is calculated by the following equation (2).
P52 = P22 after a predetermined traveling scene / P22 before a predetermined traveling scene (2)
The third degree-of-change individual index P53 indicates the degree of change in brake operation before and after a predetermined traveling scene, and is calculated by the following equation (3).
P53 = P23 after a predetermined traveling scene / P23 before a predetermined traveling scene (3)

Subsequently, in step S19, the posture adjustment unit 100 calculates a driving operation smoothness representative index P2 based on the first to third driving operation smoothness individual indexes P21 to P23 calculated in step S17. Specifically, the driving operation smoothness representative index P2 is calculated by the following equation (4).
P2 = P21 × P22 × P23 (4)
Subsequently, in step S20, the posture adjustment unit 100 calculates a driving operation stability representative index P3 based on the driving operation stability individual indexes P31 to P35 calculated in step S18. Specifically, the driving operation stability representative index P3 is calculated by the following equation (5).
P3 = 1 / (P31 × P32 × P33 × P34 × P35) (5)

Subsequently, in step S21, the posture adjustment unit 100 calculates a driving operation abruptness representative index P4 based on the first to third driving operation abruptness individual indexes P41 to P43 calculated in step S18. Specifically, the driving operation abruptness representative index P4 is calculated by the following equation (6).
P4 = P41 × P42 × P43 (6)
Subsequently, in step S22, the posture adjustment unit 100 determines the driving operation change degree representative index P5 before and after a predetermined driving scene based on the first to third driving operation change degree individual indexes P51 to P53 calculated in step S18. calculate. Specifically, the driving operation change representative index P5 is calculated by the following equation (7).
P5 = P51 × P52 × P53 (7)
Table 3 below shows the relationship between the values of the personal characteristic indices P2 to P5 (including the personal characteristic index P1 described later) calculated as described above and the characteristics of the driving operation of the driver.

Then, the posture adjustment unit 100 proceeds to step S <b> 14, and stores the personal characteristic indexes P <b> 1 to P <b> 5 calculated in this way in the personal information storage unit 101.
On the other hand, in step S4 which proceeds when the host vehicle speed is 0 in step S3, the posture adjustment unit 100 performs each adjustment for realizing the reference posture (basic posture) corresponding to the height h based on the height h of the driver. The values of the parts (equipment state in the vehicle) Lsl ′, Lsh ′, Lsa ′, Lpl ′, Lhh, Lha ′ are calculated.

  Here, the reference posture is a posture in which the driver can optimally perform the driving operation in a state where the driver is seated on the driver's seat. Specifically, the position of the eyes is constant regardless of the height h of the driver. In addition, the postures determined for each height h have a similar relationship. Alternatively, the reference posture is a posture in which each joint (for example, a predetermined joint related to the driving posture or the driving operation) becomes a joint angle with less burden regardless of the height h.

9 to 14 show tables (characteristic diagrams) for calculating the values Lsl ′, Lsh ′, Lsa ′, Lpl ′, Lha ′, and Lhh of the respective regulatory sites based on the height h.
As shown in FIG. 9, the steering front / rear position Lsl ′ has a certain small value in a region where the height h is small, and when the height h is larger than a certain value a (for example, 1450 mm), the vehicle has a proportional relationship with the height h. When the height h increases further and the height h becomes larger than a certain value b (for example, 1900 mm), it becomes a certain large value.

As shown in FIG. 10, the steering vertical position Lsh ′ is a constant large value in the region where the height h is small, and becomes inversely proportional to the height h when the height h is greater than a certain value a (for example, 1450 mm). If the height h further decreases and the height h becomes larger than a certain value b (for example, 1900 mm), it becomes a certain small value.
Further, as shown in FIG. 11, the steering angle (vehicle longitudinal direction angle) Lsa ′ is always a constant value without being influenced by the height h.

Further, as shown in FIG. 12, the pedal front / rear position Lpl ′ has a constant small value in a region where the height h is small, and is proportional to the height h when the height h is larger than a certain value a (for example, 1450 mm). When the height h further increases and the height h becomes larger than a certain value b (for example, 1900 mm), it becomes a certain large value.
Further, as shown in FIG. 13, the seat height Lhh is a constant large value in a region where the height h is small, and becomes inversely proportional to the height h when the height h is greater than a certain value a (for example, 1450 mm). When the height h decreases further and the height h becomes larger than a certain value b (for example, 1900 mm), it becomes a certain small value.

Further, as shown in FIG. 14, the seat back angle Lha ′ is always a constant value without being influenced by the height h.
9 to 14, the posture adjustment unit 100 uses Lsl ′, Lsh ′, Lsa ′, Lpl ′, Lhh ′, and Lha ′ as the values of the adjustment parts corresponding to the height h read in step S1. calculate.
Subsequently, in step S <b> 5, the posture adjustment unit 100 reads the door opening from the door opening detection unit 103, the floor load from the floor load detection sensor 91, and the seat load from the seat load detection sensor 92.
Subsequently, in step S6, the posture adjustment unit 100 calculates the first to third flexibility individual indexes P11, P12, and P13 based on the door opening, the floor load, and the seat load read in step S5. Specifically, it is calculated as follows.

FIG. 15 shows a table (characteristic diagram) for calculating the first flexibility individual index P11 based on the average value of the maximum door opening (maximum door opening average).
As shown in FIG. 15, the first flexibility individual index P11 has a constant large value (with flexibility or high flexibility) in a region where the average value of the maximum door opening is small, and the average of the maximum door opening. When the value is larger than a certain value, it decreases in inverse proportion to the average value of the maximum door opening, and when the average value of the maximum door opening is further larger than a certain value, a certain small value (flexibility is reduced). No or low flexibility).

FIG. 16 shows a table (characteristic diagram) for calculating the second flexibility individual index P12 based on the maximum floor load ratio Ffp / Fm. Here, Ffp is the peak value (maximum value) of the floor load read in step S5, and Fm is the seat load in a steady state.
Here, FIG. 17 shows changes in the floor load and the seat load when the driver gets on and off (especially when getting on). As shown in FIG. 17, when the driver gets on, the floor load (value indicated by a dotted line in the figure) increases at the timing when the driver puts (places) his / her foot on the floor, and shows a peak. It will decrease. Then, the seat load rises with a delay from such a change in floor load, and similarly shows a peak and decreases. Thus, the floor load changes when the driver gets on, and Ffp is the peak value of the changing floor load.

  As shown in FIG. 16, the second flexibility individual index P12 has a constant small value (no flexibility or low flexibility) in a region where the maximum floor load ratio Ffp / Fm is small, and the maximum floor load ratio Ffp / When Fm is larger than a certain value, it increases in proportion to the maximum floor load ratio Ffp / Fm, and when the maximum floor load ratio Ffp / Fm is further larger than a certain value, a certain large value (flexibility is increased). Or high flexibility).

  FIG. 18 shows a table (characteristic diagram) for calculating the third flexibility individual index P13 based on the maximum seat load ratio Fmp / Fm. Here, Fmp is the peak value of the seat load read in step S5. That is, as shown in FIG. 17, the seat load changes when the driver gets on, and Fmp is the peak value of the changing seat load. Here, the maximum seat load ratio Fmp / Fm is, for example, a value indicating the abruptness when the buttocks are lowered on the seat cushion 4a.

As shown in FIG. 18, the third flexibility individual index P13 has a constant large value (there is flexibility or high flexibility) in the region where the maximum seat load ratio Fmp / Fm is small, and the maximum seat load ratio Fmp / Fm / When Fm is greater than a certain value, it decreases in an inversely proportional relationship with the maximum seat load ratio Fmp / Fm. When the maximum seat load ratio Fmp / Fm is further greater than a certain value, a certain small value (flexibility is reduced). No or low flexibility).
Subsequently, in step S7, the posture adjustment unit 100 calculates the flexibility representative index P1 based on the first to third flexibility individual indexes P11, P12, and P13 calculated in step S6. Specifically, the flexibility representative index P1 is calculated by the following equation (8).
P1 = P11 × P12 × P13 (8)

  Subsequently, in step S8, the posture adjustment unit 100 determines the values Lsl ′, Lsh ′, Lsa ′, Lpl ′, Lha ′ of the respective adjustment parts calculated in step S4 and the individual characteristic index values P1 to P1 read in step S2. Based on P5, values Lsl, Lsh, Lsa, Lpl, and Lha of each regulatory site are calculated. That is, the values Lsl ′, Lsh ′, Lsa ′, Lpl ′, and Lha ′ of each regulatory site are corrected with the individual feature index values P1 to P5, and the values Lsl, Lsh, Lsa, Lpl and Lha are calculated. Specifically, the values Lsl, Lsh, Lsa, Lpl, and Lha of each regulatory site are calculated by the following formulas (9) to (13).

Lsl = Lsl ′ + Ksl1 × P1 + Ksl2 × P2 + Ksl3 × P3 + Ksl4 × P4 (9)
Lsh = Lsh ′ + Ksb1 × P1 + Ksb2 × P2 (10)
Lsa = Lsa ′ + Ksa1 × P3 + Ksa2 × P4 (11)
Lpl = Lpl ′ + Kpl1 × P5 (12)
Lha = Lha ′ + Kha1 × P1 + Kha2 × P2 (13)
Here, Ksl1, Ksl2, Ksl3, Ksl4, Ksb1, Ksb2, Ksa1, Ksa2, Kpl1, Kha1, and Kha2 are weighting coefficients corresponding to the reference posture values Lsl ′, Lsh ′, Lsa ′, Lpl ′, and Lha ′. .

  Here, according to the equation (9), the steering front / rear position Lsl is based on the steering front / rear position Lsl ′ that realizes the reference posture as a reference, the flexibility representative index P1, the driving operation smoothness representative index P2, the driving operation stability. It is calculated based on the degree representative index P3 and the driving operation abruptness representative index P4. That is, the steering front / rear position Lsl is a value calculated (corrected) in consideration of flexibility and smoothness, stability, and abruptness of the driving operation to the steering front / rear position Lsl 'that realizes the reference posture.

  Further, according to the equation (10), the steering vertical position Lsh is calculated based on the flexibility representative index P1 and the driving operation smoothness representative index P2 with reference to the steering vertical position Lsh ′ that realizes the reference posture. The That is, the steering vertical position Lsh is a value calculated (corrected) in consideration of flexibility and smoothness of driving operation to the steering vertical position Lsh ′ that realizes the reference posture.

  Further, according to the equation (11), the steering angle Lsa is calculated based on the driving operation stability representative index P3 and the driving operation abruptness representative index P4 with reference to the steering angle Lsa that realizes the reference posture. . That is, the steering angle Lsa is a value calculated (corrected) in consideration of the stability and abruptness of the driving operation to the steering angle Lsa that realizes the reference posture.

Further, according to the equation (12), the pedal front / rear position Lpl is calculated based on the driving operation change representative index P5 with reference to the pedal front / rear position Lpl ′ that realizes the reference posture. That is, the pedal front / rear position Lpl is a value calculated (corrected) in consideration of the degree of change in driving operation to the pedal front / rear position Lpl ′ that realizes the reference posture.
Further, according to the equation (13), the seat back angle Lha is calculated based on the flexibility representative index P1 and the driving operation smoothness representative index P2 based on the seat back angle Lha that realizes the reference posture. . That is, the seat back angle Lha is a value calculated (corrected) in consideration of flexibility and smoothness of the driving operation to the seat back angle Lha ′ for realizing the reference posture.

  By such calculation, the steering front / rear position Lsl, the steering vertical position Lsh, and the seat back angle Lha are calculated based on the flexibility representative index P1, for example, as the flexibility representative index P1 increases, that is, the driver The more flexible the body, the smaller the steering front / rear position Lsl (rear position), the smaller the steering vertical position Lsh (lower position), and the larger the seat back angle Lha (horizontal direction). Lean on).

The sheet height Lhh is not corrected based on the individual feature index values P1 to P5.
Subsequently, in step S9, the posture adjustment unit 100 controls the steering longitudinal position adjustment mechanism 82 and the steering vertical position adjustment mechanism 81 so that the steering longitudinal position Lsl and the steering vertical position Lsh calculated in step S8 are obtained.

Subsequently, in step S10, the posture adjustment unit 100 controls the steering angle adjustment mechanism 83 so that the steering angle Lsa calculated in step S8 is obtained.
Subsequently, in step S11, the posture adjustment unit 100 controls the movable floor displacement mechanism 40 so as to be the pedal front / rear position Lpl calculated in step S8.
Subsequently, in step S12, the posture adjustment unit 100 controls the seat back angle adjustment mechanism 70 so that the seat back angle Lha calculated in step S8 is the same.

Subsequently, in step S13, the posture adjustment unit 100 controls the seat height adjustment mechanism 50 so that the seat height Lhh calculated in step S4 is obtained.
Subsequently, in step S <b> 14, the posture adjustment unit 100 stores the personal feature indexes P <b> 1 to P <b> 5 in the personal information storage unit 101.
Subsequently, in step S15, the posture adjustment unit 100 determines whether the key position is the engine start position, as in step S1. Here, when the key position is the engine start position, the posture adjustment unit 100 proceeds to step S3. When the key position is not the engine start position, the posture adjustment unit 100 ends the process shown in FIG. 3 (from step S1 again). Start processing).

(Operation)
Next, the operation will be described.
When the key is in the starting position (when “Yes” is determined in Steps S1 and S15) and the vehicle is traveling (when “No” is determined in Step S3), the posture adjustment unit 100 is The steering angle, the accelerator opening degree, and the brake amount during traveling are read (step S16), and the first to third driving operation smoothness individual indexes P21 to P23 are based on the read steering angle, accelerator opening amount, and brake amount. The first to fifth driving operation stability individual indexes P31 to P35, the first to third driving operation rapidity individual indexes P41 to P43, and the first to third driving operation change degree individual indexes P51 to P53 are calculated (see above). Step S17, Step S18). The posture adjustment unit 100 then calculates the calculated first to third driving operation smoothness individual indexes P21 to P23, the first to fifth driving operation stability individual indexes P31 to P35, and the first to third driving operation abruptness. Based on the individual indices P41 to P43 and the first to third driving operation change degree individual indices P51 to P53, the driving operation smoothness representative index P2, the driving operation stability representative index P3, the driving operation abruptness representative index P4, and the driving operation The change representative index P5 is calculated (steps S19 to S22).

  Further, when the key is at the start position (when “Yes” is determined in Steps S1 and S15) and the vehicle is stopped (when “Yes” is determined in Step S3), the posture adjustment unit 100 Is based on the height h read from the personal information storage unit 101 (step S2), and the values of the adjustment parts (states in the vehicle) Lsl ′, Lsh ′, Lsa that realize the reference posture corresponding to the height h. ', Lpl', Lhh, Lha 'are calculated (step S4). Further, the attitude adjustment unit 100 reads the door opening, floor load, and seat load (step S5), and based on the read door opening, floor load, and seat load, the first to third flexibility individual indexes. P11, P12, and P13 are calculated (step S6), and the flexibility representative index P1 is calculated based on the calculated first to third flexibility individual indexes P11, P12, and P13 (step S7). Then, the posture adjusting unit 100 calculates the calculated flexibility representative index P1, the driving operation smoothness representative index P2, the driving operation stability representative index P3, the driving operation abruptness representative index P4, and the driving calculated while the vehicle is traveling. Based on the operation change degree representative index P5 (individual characteristic index values P1 to P5), the values Lsl, Lsh of the respective regulatory sites obtained by correcting the values Lsl ′, Lsh ′, Lsa ′, Lpl ′, Lha ′ of the respective regulatory sites. , Lsa, Lpl, and Lha are calculated (step S8).

  Then, the posture adjustment unit 100 determines the movable floor displacement mechanism 40 and the seat height adjustment mechanism 50 based on the calculated values of the respective adjustment parts (values of the respective adjustment parts after correction) Lsl, Lsh, Lsa, Lpl, and Lha. The seat back angle adjusting mechanism 70, the steering vertical position adjusting mechanism 8, the steering front / rear position adjusting mechanism 82, and the steering angle adjusting mechanism 83 are controlled (steps S9 to S13).

  Thus, by controlling the movable floor displacement mechanism 40, the accelerator pedal 2 and the brake pedal 3 are displaced in the vertical direction while moving in the front-rear direction together with the movable floor 21. That is, the movable floor 21 moves in an oblique direction with the same gradient as the slide rail 41a. Further, by controlling the seat height adjusting mechanism 50 and the seat back angle adjusting mechanism 70, the driver seat 4 is raised and lowered, and the angle of the back 4b of the driver seat 4 is changed. At this time, the movable floor 21 moves up and down together with the driver seat 4. Further, by controlling the steering vertical position adjusting mechanism 81, the steering longitudinal position adjusting mechanism 82, and the steering angle adjusting mechanism 83, the steering 5 moves in the vertical direction and the longitudinal direction, and the angle changes.

At this time, since the steering vertical position adjustment mechanism 81 and the steering front / rear position adjustment mechanism 82 are controlled based on the tables shown in FIGS. 9 and 10, the steering 5 has a higher vehicle height as the driver's height h increases. It is located on the front side and the lower side, that is, the lower oblique front side.
At this time, since the steering angle adjusting mechanism 83 is controlled based on the table shown in FIG. 11, the angle of the steering wheel 5 is always a constant angle regardless of the height h of the driver.

Further, since the movable floor displacement mechanism 40 is controlled based on the table shown in FIG. 12, the accelerator pedal 2 and the brake pedal 3 are positioned on the front side of the vehicle as the height h of the driver increases.
Further, since the seat height adjusting mechanism 50 is controlled based on the table shown in FIG. 13, the driver seat 4 is positioned on the lower side as the height h of the driver increases. At this time, since the seat back angle adjusting mechanism 70 is controlled based on the table shown in FIG. 14, the angle of the back 4b of the driver seat 4 is always a constant angle regardless of the height h of the driver. Become.

(Function)
Next, the operation will be described.
Here, with respect to the driving posture of the driver when the driving posture adjusting device performs the above-described operation, the reference positions corresponding to the height h and the values Lsl, Lsh, The reference posture when Lsa, Lpl, and Lha are obtained, that is, the corrected reference posture in consideration of the driver's flexibility and the characteristics of the driving operation will be described.

(1) Reference posture corresponding to height h First, a reference posture corresponding to height h will be shown using FIG.
As shown in FIG. 19, the seat position P _SET (shown in FIG. 1) changes between the lowest position P _SETmin and the highest position P _SETmax due to the movement of the driver seat 4. Specifically, by controlling the seat height Lhh as in the table shown in FIG. 13, the seat position P _SET becomes substantially obliquely forward from the lowest position P _SETmin as the driver's height h decreases. It changes to the highest position P _SETmax in the direction of arrow A1. As a result, the seat position P _SET becomes the highest position P _SETmax at the minimum height h, and becomes the lowest position P _SETmin at the maximum height h. The seat position P _SET is a point in the vicinity of the driver's hip point, for example, a joint position between the seat cushion 4a and the backrest 4b.

As the driver seat 4 moves, the driver's hip position P _HP (shown in FIG. 1) changes between the lowest position P _HPmin and the highest position P _HPmax . Specifically, as the driver's seat 4 moves as described above, the driver's hip position P _HP decreases from the lowest position P _HPmin toward the upper position (indicated by the arrow A2) as the driver's height h decreases. Change to the highest position P _{HPmax in the} direction). That is, the hip position P _HP becomes the highest position P _HPmax at the minimum height h, and becomes the lowest position P _HPmin at the maximum height h.

Here, generally, as the height h becomes lower, the thickness of the body (torso) becomes thinner. Therefore, as the driver's height h becomes lower as described above, the seat position P _SET moves obliquely forward and upward. The hip position P _HP moves upward when the height h of the driver is lowered.
Furthermore, since the driver's seat 4 is moved, the position of the eyes position of the driver (eye point) P I _(shown in Figure 1) is maintained. That is, regardless of the height h of the driver, Looking position P _I of the driver is constant position.
Here, generally, as the height h becomes lower, the seat height becomes lower. Therefore, as the driver's height h becomes lower, the seat position P _SET or the hip position P _HP moves upward as described above. in, Looking at position P _I of the driver is in a fixed position regardless of the height h of the driver.

On the other hand, steering position _{P STL} (shown in FIG. 1) is changed between the most forward position _{P STLmin} and rearwardmost position _{P STLmax.} Specifically, FIG. 9 to FIG. 11 showing the steering longitudinal position Lsl as table ', steering vertical position Lsh' by controlling the and the steering angle Lsa ', steering position P _STL is the driver's height h more increases, changing from the rearmost position _{P STLmax,} to the most forward position _{P STLmin} in its lower oblique front (direction of arrow A3). As a result, the steering position P _STL becomes the _rearmost position P _STLmax with the minimum height h, and becomes the _foremost position P _STLmin with the maximum height h.

Further, when the accelerator pedal 2 and the brake pedal 3 move together with the movable floor 21, the driver's pedaling force input position P _T (shown in FIG. 1) in the accelerator pedal 2 or the brake pedal 3 becomes the foremost and lowest position P _Tmin. And the rearmost and highest position _PTmax . Specifically, by controlling the pedal front / rear position Lpl ′ as in the table shown in FIG. 12, the driver's pedaling force input position _PT becomes the foremost and lowest position P as the driver's height h decreases. _It changes from _Tmin to its rearmost and highest position _PTmax that is substantially obliquely rearward (in the direction of arrow A4). Thus, pedal force input position _{P T} of the driver, the forwardmost and the lowest position _{P Tmin} at the rearmost and uppermost position _{P Tmax,} and the maximum height h at the minimum height h. The driver's stepping force input position _PT is a position of a pedal pad provided as a convex portion on the surface of the accelerator pedal 2, for example.

  As described above, driving is performed by changing the seat position PSET, the driver's eye position PI, the steering position PSTL, the driver's heel position PHL, and the driver's pedaling force input position PT based on the driver's height h. The driving posture of the driver becomes a reference posture corresponding to the height h of the driver himself. That is, the driving posture of the driver is a posture in which the eyes are in a fixed position regardless of the height h of the driver himself and the postures determined for each height h are similar to each other. In other words, the driving posture adjusting device has a movable floor displacement mechanism 40, a seat height adjusting mechanism 50, a seat back angle adjusting mechanism 70, a steering vertical position adjusting mechanism 81, and a steering front / rear position adjusting mechanism so as to be in such a reference posture. 82 and the steering angle adjusting mechanism 83 are appropriately controlled. As a result, the driving posture of the driver becomes the optimal driving posture for the driving operation. That is, the driving posture can be adapted to the driver.

(2) Reference posture after correction based on driver flexibility and driving operation characteristics Next, a corrected reference posture based on driver flexibility and driving operation characteristics will be described.
Flexibility representative index P1 that changes according to body flexibility, driving operation smoothness representative index P2 that changes according to driving operation smoothness, driving operation stability representative index P3 that changes according to driving operation stability, and suddenness of driving operation The values Lsl ′, Lsh ′, Lsa ′, Lpl ′, and Lha ′ of the respective control parts are calculated based on the driving operation abruptness representative index P4 that changes by the above and the driving operation change degree representative index P5 that changes by the change of the driving operation. By calculating, while maintaining the standard posture as described above, the driving posture considering the characteristics of the driver's body, such as the flexibility of the driver's body and the smoothness, stability, suddenness and change of the driving operation (Corrected reference posture). A specific example will be described below.

FIG. 20 shows an example of a change in the reference posture after correction.
As described above, the greater the flexibility representative index P1, that is, the more flexible the driver's body, the smaller the steering front / rear position Lsl and the steering vertical position Lsh, while the seat backrest angle Lha is increased. As shown in FIG. 20, the steering position _PSTL moves substantially diagonally forward (in the direction of the arrow A5) and the driver's seat seats (see the formulas (9), (10), and (13)). The backrest 4a of 4 falls to the rear side by an angle θ.

  As a result, the driving posture of the driver 200 becomes a posture in which the torso falls down and the arm extends as shown as a change from a dotted line to a solid line. Thus, when the flexibility is low (no flexibility), the driving posture (dotted driving posture) can be operated without moving the shoulder, but the flexibility is high (the flexibility is flexible). In some cases, the abdomen becomes comfortable, and there is no feeling of arm pressure, so that the driving posture in which the steering wheel 5 can be operated (solid driving posture) is obtained. This is because, for example, when the driver's upper body is soft, the driver can use the movement of the scapula and trunk torsion during steering operation. This is because there is no problem even if it is set far from the driver.

In addition, by changing the steering angle Lsa based on the driving operation stability representative index P3 (see the equation (11)), the steering angle is reduced in the case of a driver with low driving operation stability (steering). 5). Thereby, for example, even a driver with low stability of driving operation can perform a desired operation.
That is, by using the fact that the stability of the driving operation affects the position of the steering 5 in the vehicle front-rear direction and the tilt angle of the steering in the vehicle front-rear direction, the steering front-rear position Lsl and the like are determined based on the driving operation stability representative index P3. By calculating and adjusting the state of the steering 5 based on the steering front / rear position Lsl and the like, the state of the steering 5 can be made more suitable for the driving posture of the driver.

  In addition, by changing the steering front / rear position Lsl and the steering angle Lsa based on the driving operation abruptness representative index P4 (see the above formulas (9) and (11)), In this case, the steering angle can be reduced (the steering 5 is raised) and can be brought closer to the driver's seat 4. For example, the rapidity of the driving operation is also an expression of the driver's impatience, so in the case of an impatient driver, the driving operation becomes more rapid so that the driver can perform a quick steering operation. The steering angle can be reduced (the steering 5 is raised) and the steering 5 can be brought closer to the driver seat 4.

That is, using the fact that the rapidity of the driving operation affects the position of the steering 5 in the longitudinal direction of the vehicle and the inclination angle of the steering in the longitudinal direction of the vehicle, the steering longitudinal position Lsl and the like are determined based on the driving operational abruptness representative index P4. Thus, by adjusting the state of the steering 5 based on the steering front / rear position Lsl and the like, the state of the steering 5 can be made more suitable for the driver's driving posture.
As the driving operation is more rapid, the driver tends to position the steering 5 closer to the rear of the vehicle (closer to the driver's seat 4) and to tend to make the steering 5 vertical. This state can be made more suitable for the driving posture of the driver.

  Further, by changing the pedal front / rear position Lpl based on the driving operation change degree representative index P5 (see the above expression (12)), in the case of a driver having a large change in driving operation, the accelerator pedal 2 and the brake pedal 3 can be moved rearward, that is, closer to the driver's seat 4. For example, the degree of change in driving operation is also an expression of the sensitivity to the driver's burden, so the sensitivity is large, that is, the change in driving operation from the effect that fast braking operation and lower limbs provide a sense of security In the case of a driver having a high degree, the accelerator pedal 2 and the brake pedal 3 can be brought closer to the driver seat 4.

  That is, the pedal front / rear position Lpl is calculated based on the driving operation change representative index P5 by using the fact that the degree of change in driving operation affects the front / rear position of the driving operation pedal (accelerator pedal 2 or brake pedal 3). Thus, by adjusting the state of the driving operation pedal based on the pedal front-rear position Lpl, the positional relationship between the driver and the driving operation pedal can be made more suitable for the driving posture of the driver. And as the degree of change in driving operation is higher, the driver tends to position the driving operation pedal closer to the rear of the vehicle, so the positional relationship between the driver and the driving operation pedal is more adapted to the driving posture of the driver. It can be in the state.

  Further, the steering front / rear position Lsl, the steering up / down position Lsh, and the seat backrest angle Lha are calculated based on the driving operation smoothness representative index P2 (see the expressions (9), (10), and (13)). . That is, using the influence of the smoothness of the driving operation on the position or vertical position of the steering in the vehicle longitudinal direction or the angle of the backrest of the driver's seat, the steering front / rear position Lsl based on the driving operation smoothness representative index P2. Based on the steering front / rear position Lsl, etc., the state of the steering wheel 5 and the driver's seat 4 is adjusted to make the state of the steering wheel 5 and the driver's seat more suitable for the driving posture of the driver. It can be in the state.

  As described above, based on the reference posture corresponding to the height h of the driver, the driver's driving posture is estimated based on the characteristics of the flexibility and the driving operation, and the driving is performed so that the estimated driving posture is obtained. The driver's driving posture is adjusted to the standard posture (driving posture optimal for driving operation corresponding to height h), even when flexibility and driving operation characteristics are taken into account by adjusting the state of in-vehicle equipment such as the seat 4 Therefore, it is possible to estimate an optimal driving posture that is not greatly different from the vehicle, and to make the state of in-vehicle equipment such as the driver's seat 4 more suitable for the driving posture of the driver. That is, the driving posture can be adapted to the driver.

  Furthermore, the driving operation smoothness representative index P2 indicating the smoothness and softness of the driving operation, the driving operation stability representative index P3 indicating the variation or driving skill of the driving operation, the speed of the driving operation, the frequency, and the driver's impatient tendency. The characteristics of the driving operation are estimated based on the driving operation abruptness representative index P4 and the driving operation change degree representative index P5 indicating the driver's sensitivity to the load received from the predetermined traveling scene. As described above, since the characteristics of the driving operation can be estimated with high accuracy by estimating the characteristics of the driving operation from the index that affects the driving operation, the optimum driving posture can be accurately estimated as a result.

  Further, the driving operation smoothness representative index P2 indicating the smoothness and softness of the driving operation and the driving operation stability representative index P3 indicating the variation in driving operation or the driving skill indicate characteristics of the driving operation expressed by the skill of the driving operation. It can be said that the driving operation abruptness representative index P4 indicating the speed, frequency and impulsive tendency of the driving operation, and the driving operation change degree representative index P5 indicating the driver's sensitivity to the burden received from the predetermined traveling scene are: It can be said that the characteristic of the driving operation that expresses the mental state of the driver is shown. Therefore, by determining the driving posture based on the indices P2 to P5, the driving posture is estimated in consideration of the driving skill and the mental state of the driver that affect the driving operation. Can be estimated accurately.

In addition, as described above, for example, by calculating the second driving operation smoothness individual index P22 based on the operation history of the accelerator opening, the characteristics of the driving operation based on the driving operation history of the driver, for example. Is estimated. Accordingly, the optimum driving posture can be accurately estimated by utilizing the fact that the driving operation features appear in the history of the driving operation.
Further, as described above, the first driving operation stability individual index P31 is obtained as a value indicating the variation of the first driving operation smoothness individual index P21 indicating the smoothness of the steering operation, and the first indicating the smoothness of the accelerator operation. The second driving operation stability individual index P32 is obtained as a value indicating the variation of the two driving operation smoothness individual index P22, and the second driving operation stability individual index P23 indicating the smoothness of the brake operation is obtained as the value indicating the variation of the third driving operation smoothness individual index P23. 3 The driving operation stability individual index P31 is obtained, and the driving operation stability representative index P3 is obtained based on the respective indexes P31 to P33 (steps S18 and S20). In addition, a fourth driving operation stability individual indicator P34 indicating variation in the maximum deceleration (deceleration peak value or the amount of depression of the brake pedal at that time) for each brake operation, and the maximum steering angular velocity (steering angular velocity peak for each steering operation). The driving operation stability representative index P3 is obtained based on the fifth driving operation stability individual index P35 indicating the variation in the value) (steps S18 and S20). That is, the stability of the driving operation is a variation in the maximum value of the operation amount for each operation when the steering operation, the accelerator operation, the brake operation is performed a plurality of times, and the operation for each operation when the operation is performed a plurality of times. The driving posture is estimated based on the stability of the driving operation using the variation in the maximum value of the operation speed and the variation in the smoothness of each operation when the operation is performed multiple times. The optimal driving posture can be accurately estimated.

The stability of the driving operation can also be determined in consideration of the variation in the maximum value of the operation speed for each accelerator operation and the variation in the maximum value of the operation speed.
Further, as described above, the first driving operation rapidity individual index P41 is obtained based on the maximum value of the steering angular velocity of the steering operation, and the second driving operation rapidity individual index P42 is obtained based on the frequency of the steering operation. The third rapidity individual index P43 is obtained based on the frequency of the turn signal operation, and the driving operation rapidity representative index P4 is obtained based on each of the indices P41 to P43 (steps S18 and S21). . That is, using the fact that the driver's operation rapidity appears in the steering operation frequency, the maximum steering angular velocity and the turn signal operation frequency, the driving posture is estimated based on the driver's operation rapidity. Thus, the optimum driving posture can be estimated more accurately.

  Further, as shown in FIG. 15, the first flexibility individual index P <b> 11 is made smaller, assuming that the greater the average value of the maximum door opening, the lower the body flexibility. Here, in general, the higher the flexibility of the body, the more the vehicle can enter the vehicle with a smaller door opening with the standing position at the rear. Since the first flexibility individual index P11 is determined based on the relationship between the body flexibility and the door opening degree according to the actual situation, the flexibility representative calculated based on the first flexibility individual index P11. The index P1 is an index that indicates the flexibility with high accuracy. In other words, the flexibility representative index P1 is obtained by utilizing the fact that the flexibility of the driver's body appears in the behavior of the driver when getting on and off the vehicle, thereby accurately estimating the flexibility of the driver's body. it can.

  Further, as shown in FIG. 16, the second flexibility individual index P12 is increased, assuming that the greater the maximum floor load ratio Ffp / Fm, the higher the flexibility of the body. Here, generally, the higher the flexibility of the body, the more the driver puts his / her foot forward on the floor, and at this time, the load applied on the floor becomes larger (the maximum value of the load is obtained). ). Since the second flexibility individual index P12 is determined based on the relationship between the body flexibility and the floor load in accordance with such a situation, the flexibility representative index calculated based on the second flexibility individual index P12. P1 is an index indicating the flexibility of the body with high accuracy. That is, when the driver gets on and off the vehicle, the flexibility representative index is utilized by utilizing the fact that the flexibility of the driver's body appears in the maximum value of the load applied to the driver's seat floor and the maximum value of the load applied to the driver's seat. P1 is obtained, and thereby the flexibility of the driver's body can be accurately estimated.

  Further, as shown in FIG. 18, the third flexibility individual index P13 is made smaller because the body flexibility is lower as the maximum seat load ratio Fmp / Fm is larger. Here, in general, the lower the flexibility of the body (the harder the body), the more the driver sits on the seat when getting on. Since the third flexibility individual index P13 is determined based on the relationship between the body flexibility and the seat load in accordance with such a situation, the flexibility representative index calculated based on the third flexibility individual index P13. P1 is an index indicating the flexibility with high accuracy. That is, if there is no flexibility of the driver's body, the flexibility representative index P1 is obtained by utilizing the fact that the maximum value of the load applied to the driver's seat 4 when the driver gets on and off the vehicle increases. Thus, the flexibility of the driver's body can be accurately estimated.

  Further, as described above, the predetermined traveling scene that has obtained the driving operation change degree representative index P5 is a traveling scene in which the burden of the driving operation increases, specifically, a curved traveling scene (the step). S18, step S22). In other words, the driving operation change degree representative index P5 indicating the degree of change in driving operation is obtained by using the fact that the burden of driving operation increases in the driving scene of the curve. Obtainable.

  In addition, as described above, the first driving operation smoothness individual index P21 is obtained based on the degree of variation in steering operation, and the second driving operation smoothness individual index P22 is obtained based on the degree of variation in accelerator operation. The third driving operation smoothness individual index P23 is obtained based on the degree of variation of the operation, and the driving operation smoothness representative index P2 is obtained based on each of the indices P21 to P23 (steps S17 and S19). . That is, the driving operation smoothness representative index P2 is obtained by utilizing the fact that the smoothness of the driving operation appears in the degree of variation in the steering operation, the accelerator operation, and the brake operation, thereby accurately estimating the characteristics of the driving operation. it can.

  Further, as described above, the weighting factors Ksl1 to Kha2 are used to weight the individual characteristic index values P1 to P5 indicating the flexibility of the driver's body and the characteristics of the driving operation of the driver, and the values Lsl, Lsh, Lsa, Lpl, and Lha are calculated. As a result, it is possible to consider that the individual feature index values P1 to P5 have different degrees of influence on the driving posture of the driver, and the driving posture of the driver can be accurately estimated.

The present invention can also be realized by the following configuration.
That is, in the embodiment, the driver's physique factor is the height of the driver. However, other characteristics of the body that express the driver's physique, such as the driver's body shape, can be used, and even in this case, the same effect as that obtained by using the height can be obtained.
Moreover, in the said embodiment, in order to estimate the softness | flexibility of a driver | operator's body, and the characteristic of a driver | operator's driving operation, it gave and demonstrated the specific parameter | index. However, even if the flexibility of the driver's body and the characteristics of the driving operation of the driver are estimated based on other indexes, the same effects as those obtained using the above-described specific indexes can be obtained.

  In the description of the embodiment, the process in step S2 of the posture adjustment unit 100 realizes a physique factor acquisition unit that acquires the physique factor of the driver, and the processes in steps S5 and S6 of the posture adjustment unit 100. Realizes a flexibility estimating means for estimating the flexibility of the driver's body, and the processing of step S16 to step S22 (processing of FIG. 4) of the posture adjustment unit 100 is characterized by the driving operation of the driver. The driving operation feature estimation means to be estimated is realized, and the processing of step S7 and step S8 of the posture adjustment unit 100 includes the physique factor acquired by the physique factor acquisition means, the flexibility estimated by the flexibility estimation means, and Based on the characteristics of the driving operation estimated by the driving operation characteristic estimating means, driving attitude estimating means for estimating the driving attitude of the driver when seated in the driver's seat is realized.

  In the description of the embodiment, the door opening degree detection unit 103 realizes door opening degree detecting means for detecting the opening degree of the door of the driver's seat when the driver gets on and off the vehicle, and detects the floor load. The sensor 91 realizes floor load detecting means for detecting a load applied to the driver's seat floor when the driver gets on and off the vehicle, and the seat load detection sensor 92 is a driver's seat when the driver gets on and off the vehicle. A seat load detecting means for detecting a load applied to the seat is realized, whereby the flexibility estimating means detects the door opening detected by the door opening detecting means and the operation detected by the floor load detecting means. The flexibility is estimated based on at least one of the load applied to the seat floor and the load applied to the driver's seat detected by the seat load detecting means.

  In addition, the process of step S4 of the posture adjustment unit 100 realizes a reference posture determination unit that determines the reference posture of the driver when seated in the driver seat that matches the physique factor. The processing in step S8 realizes driving posture estimation means for estimating the driving posture of the driver when seated in the driver seat based on the reference posture determined by the reference posture determination means.

  In the description of the embodiment, the movable floor displacement mechanism 40 (specifically, the movable floor displacement drive motor 42), the seat height adjustment mechanism 50 (specifically, the seat vertical movement drive motor 61), the seat backrest angle. The adjustment mechanism 70, the steering vertical position adjustment mechanism 81, the steering front / rear position adjustment mechanism 82, the steering angle adjustment mechanism 83, and the posture adjustment unit 100 are based on the driving posture estimated by the driving posture estimation means. The adjusting means for adjusting the state of the in-vehicle equipment such as the floor position, the seat position and the steering position which affect the vehicle is realized. Here, the accelerator pedal 2, the brake pedal 3, the driver's seat 4 and the steering 5 realize in-vehicle equipment that affects the driving operation of the driver.

(effect)
(1) a physique factor acquisition means for acquiring a physique factor of the driver, a flexibility estimation means for estimating the flexibility of the driver's body, a driving operation feature estimation means for estimating a driving operation characteristic of the driver, Based on the physique factor acquired by the physique factor acquisition means, the flexibility estimated by the flexibility estimation means, and the characteristics of the driving operation estimated by the driving operation feature estimation means, the driver's seated seat By providing the driving posture estimation means for estimating the driving posture, it is possible to estimate the driving posture in consideration of the physique factor of the driver, the flexibility of the driver's body, and the driving operation characteristics of the driver. By adjusting the state of the driver's seat or the like based on the estimated driving posture, the driving posture can be adapted to the driver.

(2) The driving operation characteristic estimation means estimates at least one of a driving operation characteristic expressed by a driving operation skill and a driving operation characteristic expressed by a driver's mental state. Accordingly, the driving posture can be estimated in consideration of the driving operation skill that affects the driving operation and the mental state of the driver.
(3) The driving operation feature estimation means estimates the driving operation feature based on the driving operation history of the driver. The driving posture can be accurately estimated by using the fact that the characteristics of the driving operation of the driver appear in the history of the driving operation.
(4) The driving operation characteristic estimation means uses as an index at least one of smoothness of driving operation, stability of driving operation, rapidity of driving operation, and change degree of driving operation before and after a predetermined driving scene, The characteristics of the driving operation are estimated. As a result, the driving posture can be accurately estimated.

(5) For at least one of the steering operation, the accelerator operation, and the brake operation, variation in the maximum value of the operation amount for each operation when the operation is performed a plurality of times, and for each operation when the operation is performed a plurality of times The stability of the driving operation is obtained using as an index at least one of the variation in the maximum value of the operation speed and the variation in smoothness for each operation when the operation is performed a plurality of times. The stability of the driving operation is the variation of the maximum value of the operation amount for each operation when the accelerator operation and the brake operation are performed multiple times, the maximum value of the operation speed for each operation when the operation is performed multiple times The driving posture can be accurately estimated by utilizing the fact that it appears in the variation in smoothness for each operation when the operation is performed multiple times and the operation is performed a plurality of times.

(6) The rapidity of the driving operation is obtained using at least one of the frequency of the steering operation, the maximum value of the steering angular velocity, and the frequency of the turn signal operation as an index. By utilizing the fact that the driver's operation rapidity appears in the steering operation frequency, the maximum value of the steering angular velocity, and the turn signal operation frequency, the driving posture can be estimated more accurately.
(7) The predetermined traveling scene is a traveling scene in which a burden of driving operation increases. In a driving scene in which the burden of driving operation increases, the degree of change in driving operation varies depending on the characteristics of the driving operation of the driver, so that the driving posture can be estimated more accurately.

(8) The predetermined traveling scene is a curved traveling scene. By using the fact that the burden of driving operation increases in a curved driving scene, the degree of change in driving operation can be easily obtained.
(9) The driving operation feature estimation means estimates the characteristics of the driving operation using the smoothness of the driving operation as an index based on the degree of variation in the steering operation, the accelerator operation, and the brake operation. By utilizing the fact that the smoothness of the driving operation appears in the degree of variation in the steering operation, the accelerator operation, and the brake operation, it is possible to accurately estimate the characteristics of the driving operation.
(10) The flexibility estimation means estimates the flexibility of the driver's body based on the behavior of the driver when getting on and off the vehicle. By utilizing the fact that the flexibility of the driver's body appears in the behavior of the driver when getting on and off the vehicle, the flexibility of the driver's body can be accurately estimated.

(11) Door opening degree detecting means for detecting the opening degree of the door of the driver's seat when the driver gets on and off the vehicle, and floor load detection for detecting the load applied to the driver's seat floor when the driver gets on and off the vehicle. And a seat load detecting means for detecting a load applied to the driver's seat when the driver gets on and off the vehicle, wherein the flexibility estimating means is configured to detect the door opening detected by the door opening detecting means. The flexibility is estimated based on at least one of a load applied to the driver's seat floor detected by the floor load detector and a load applied to the driver's seat detected by the seat load detector. By utilizing the fact that the driver's body flexibility appears in the door opening when the driver gets on and off the vehicle, the load on the driver's seat floor and the load on the driver's seat, the driver's body flexibility Gender can be estimated accurately.

(12) The flexibility estimating means is at least one of the maximum value of the load applied to the driver's seat floor detected by the floor load detecting means and the maximum value of the load applied to the driver's seat detected by the seat load detecting means. Based on the above, the flexibility is estimated. When the driver gets on and off the vehicle, the driver's body flexibility can be obtained by utilizing the fact that the flexibility of the driver's body appears in the maximum value of the load on the driver's seat floor and the maximum value of the load on the driver's seat. Flexibility can be estimated accurately.

(13) The flexibility estimating means estimates that the greater the maximum value of the load applied to the driver's seat floor detected by the floor load detecting means is, the higher the flexibility is. The higher the flexibility of the driver's body, the greater the maximum load applied to the driver's seat floor when the driver gets on and off the vehicle. Can be estimated.
(14) The flexibility estimating means estimates that the flexibility is lower as the maximum value of the load applied to the driver's seat detected by the seat load detecting means is larger. If the driver's body is not flexible, it uses the fact that the maximum load applied to the driver's seat when the driver gets on and off the vehicle increases. Can be estimated.

(15) Adjusting means for adjusting the state of the in-vehicle equipment that affects the driving operation of the driver based on the driving attitude estimated by the driving attitude estimating means. As a result, the state of the in-vehicle equipment that affects the driving operation of the driver can be adapted to the driving posture of the driver.
(16) The adjusting means adjusts at least one of a position in the vehicle front-rear direction, a vertical position, and an angle of the backrest of the driver seat based on the flexibility estimated by the flexibility estimating means. . By utilizing the fact that the position of the steering in the front and rear of the vehicle or the vertical position or the angle of the backrest of the driver's seat differs depending on the flexibility of the driver's body, the state of the in-vehicle equipment is changed to the driver's driving posture, It can be in a more suitable state.

(17) The adjustment means may be configured such that the higher the flexibility is, the closer the steering is to the front of the vehicle and the upper side, and the angle of the backrest of the driver seat in the direction in which the backrest of the driver seat falls to the rear of the vehicle. Change to angle. The higher the flexibility of the driver's body, the closer the steering is to the front and the upper side of the vehicle, and the fact that the backrest of the driver's seat tends to be tilted backwards. The state can be made more suitable for the driving posture of the driver.

(18) The adjusting means may determine the position and vertical position of the steering in the vehicle longitudinal direction and the position of the driver seat based on the characteristics of the driving operation using the smoothness of the driving operation estimated by the driving operation characteristic estimating means as an index. Adjust at least one of the backrest angles. By utilizing the fact that the smoothness of the driving operation affects the position of the steering wheel in the longitudinal direction of the vehicle or the vertical position or the angle of the backrest of the driver's seat, the state of the steering and the driver's seat is changed to the driver's driving posture. It can be in a more suitable state.

(19) The adjustment means may determine the position of the steering in the vehicle longitudinal direction and the steering tilt in the vehicle longitudinal direction based on the characteristics of the driving operation using the stability of the driving operation estimated by the driving operation characteristic estimation means as an index. Adjust at least one of the angles. By utilizing the fact that the smoothness of the driving operation affects the position of the steering in the vehicle front-rear direction and the inclination angle of the steering in the vehicle front-rear direction, the steering state can be made more suitable for the driving posture of the driver.

(20) The adjusting means may determine the position of the steering in the vehicle front-rear direction and the tilt of the steering in the vehicle front-rear direction based on the characteristics of the driving operation using the rapidity of the driving operation estimated by the driving operation characteristic estimation means as an index. Adjust at least one of the angles. By making use of the fact that the abruptness of the driving operation affects the position of the steering wheel in the longitudinal direction of the vehicle and the inclination angle of the steering wheel in the longitudinal direction of the vehicle, the steering state can be made more suitable for the driving posture of the driver. .

(21) The adjusting means causes the steering to be positioned closer to the rear of the vehicle as the driving operation is more rapid, and changes the inclination angle of the steering in the vehicle front-rear direction to an angle in a direction in which the steering is vertical. By making use of the fact that the steerability of the driving operation increases and the steering is positioned closer to the rear of the vehicle and the steering tends to be vertical, the state of the steering is more adapted to the driving posture of the driver. it can.

(22) The adjusting unit adjusts the front / rear position of the driving operation pedal based on the characteristic of the driving operation using the degree of change of the driving operation before and after the predetermined traveling scene estimated by the driving operation characteristic estimating unit as an index. . By utilizing the fact that the degree of change in driving operation affects the front-rear position of the driving operation pedal, it is possible to make the driving operation pedal more suitable for the driving posture of the driver.
(23) The adjustment means positions the driving operation pedal closer to the rear of the vehicle as the degree of change in the driving operation is higher. By using the fact that the driving operation pedal tends to be positioned closer to the rear of the vehicle as the degree of change in driving operation is higher, the driving operation pedal can be made more suitable for the driving posture of the driver.

(24) The driving posture estimation means weights the flexibility and the characteristics of the driving operation to estimate the driving posture of the driver when seated in the driver seat. Since the degree of influence on the driving posture of the driver when seated in the driver's seat differs between the driver's body flexibility and the driver's driving operation characteristics, the flexibility and the driving operation characteristics are weighted. By estimating the driver's driving posture when seated in the driver's seat, the driver's driving posture can be accurately estimated.

(25) It comprises a reference posture determining means for determining a reference posture of the driver when seated in the driver's seat adapted to the physique factor, and the driving posture estimating means is based on the reference posture determined by the reference posture determining means, Estimate the driver's driving posture when seated in the driver's seat. A posture that facilitates driving according to the physique by estimating the driving posture of the driver based on the characteristics of flexibility and driving operation based on the standard posture of the driver when sitting in the driver's seat that fits the physique factor The driver's driving posture can be estimated without departing from the reference posture, and the driving posture can be adapted to the driver.

(26) The driving posture derived from the physique of the driver is corrected based on the flexibility of the driver's body and the characteristics of the driving operation of the driver, and the driving posture of the driver when seated in the driver's seat is estimated. . Accordingly, it is possible to estimate the driving posture in consideration of the physique factor of the driver, the flexibility of the driver's body, and the characteristics of the driving operation of the driver. By adjusting the state of the driver's seat or the like based on the estimated driving posture, a driving posture adjusting device that can adapt the driving posture to the driver can be obtained.

(27) A driver's seat on which the driver is seated, a steering wheel installed at a front portion of the driver's seat, a brake pedal and an accelerator pedal installed at a front lower portion of the driver's seat, and a physique factor of the driver Acquired by the physique factor acquisition means, the flexibility estimation means for estimating the driver's body flexibility, the driving operation feature estimation means for estimating the driver's driving operation characteristics, and the physique factor acquisition means Based on the physique factor, the flexibility estimated by the flexibility estimation means, and the characteristics of the driving operation estimated by the driving operation characteristic estimation means, driving attitude estimation for estimating the driving attitude of the driver when seated in the driver's seat And the position of the driver's seat, the position of the steering wheel and the inclination in the vehicle front-rear direction, and the brake pedal, based on the driving posture estimated by the driving posture estimating means Comprise adjusting means for adjusting at least one of the position of Kuserupedaru. Thus, based on the driving posture estimated by the driver's physique factors, the driver's body flexibility and the driver's driving operation characteristics, the position of the driver's seat, the position and inclination of the steering wheel, and the brake pedal and accelerator By adjusting at least one of the positions of the pedals, the vehicle can be adapted to the driving posture by the driver.

(28) Based on the estimated value of the driver's physique factor, the driver's body flexibility, and the estimated characteristics of the driver's driving operation, the driving posture of the driver when seated in the driver's seat is estimated. Accordingly, it is possible to estimate the driving posture in consideration of the physique factor of the driver, the flexibility of the driver's body, and the characteristics of the driving operation of the driver. By adjusting the state of the driver's seat or the like based on the estimated driving posture, the driving posture can be adjusted to suit the driver.

It is a side view which shows the structure of the driving posture adjustment apparatus of embodiment of this invention. It is a top view which shows the structure of the driving posture adjustment apparatus of embodiment of this invention. It is the whole flowchart which shows the process sequence of the attitude | position adjustment part of the said driving attitude adjustment apparatus. It is a partial flowchart which shows the process sequence of the attitude | position adjustment part of the said driving attitude adjustment apparatus. It is the figure used for description of the procedure which calculates 1st driving | operation smoothness separate parameter | index P21 based on the steering angle of a steering. It is the figure used for description of the procedure which calculates the 2nd driving | operation smoothness separate parameter | index P22 based on an accelerator opening. It is the figure used for description of the procedure which calculates 3rd smoothness individual parameter | index P23 based on the amount of brakes. It is the figure used for description of the calculation procedure of P21 after a predetermined traveling scene (after passing a curve) and P21 before a predetermined traveling scene (before passing a curve). FIG. 6 is a characteristic diagram showing a relationship between a height h and a steering front / rear position Lsl ′. FIG. 6 is a characteristic diagram showing a relationship between a height h and a steering vertical position Lsh ′. It is a characteristic view which shows the relationship between height h and steering angle Lsa '. It is a characteristic view showing the relationship between height h and pedal front and rear position Lpl '. It is a characteristic view which shows the relationship between height h and seat height Lhh. FIG. 6 is a characteristic diagram showing a relationship between a height h and a seat back angle Lha ′. It is a characteristic view which shows the relationship between the maximum door opening average and the 1st softness | flexibility individual parameter | index P11. It is a characteristic view showing the relationship between the maximum floor load ratio Ffp / Fm and the second flexibility individual index P12. The characteristic view used for description of the change of the floor load at the time of a driver's boarding / alighting (especially boarding) and a seat load is shown. It is a characteristic view which shows the relationship between the largest sheet | seat load ratio Fmp / Fm and the 3rd softness | flexibility individual parameter | index P13. It is the figure used for description of the standard posture corresponding to height h. It is the figure used for description of the change of the standard posture after amendment by applying the present invention.

Explanation of symbols

  1 Vehicle floor, 2 Accelerator pedal, 3 Brake pedal, 4 Driver's seat, 5 Steering, 40 Movable floor displacement mechanism, 50 Seat height adjustment mechanism, 70 Seat back angle adjustment mechanism, 81 Steering vertical position adjustment mechanism, 82 Steering front / rear position Adjustment mechanism, 83 steering angle adjustment mechanism, 91 floor load detection sensor, 92 seat load detection sensor, 100 posture adjustment unit, 103 door opening detection unit

Claims (28)

A physique factor acquisition means for acquiring a physique factor of the driver;
A flexibility estimation means for estimating the driver's body flexibility;
Driving operation characteristic estimation means for estimating the driving operation characteristics of the driver;
Based on the physique factor acquired by the physique factor acquisition means, the flexibility estimated by the flexibility estimation means, and the characteristics of the driving operation estimated by the driving operation feature estimation means, the driver's seated seat Driving posture estimation means for estimating the driving posture;
A driving posture adjusting device comprising:   2. The driving operation characteristic estimation means estimates at least one of a driving operation characteristic expressed by a driving operation skill and a driving operation characteristic expressed by a driver's mental state. The driving posture adjusting device according to 1.   The driving attitude adjustment device according to claim 1, wherein the driving operation characteristic estimation unit estimates the characteristic of the driving operation based on a driving operation history of the driver.   The driving operation feature estimation means uses as an index at least one of the smoothness of the driving operation, the stability of the driving operation, the rapidity of the driving operation, and the degree of change of the driving operation before and after the predetermined driving scene as an index. The driving posture adjusting apparatus according to any one of claims 1 to 3, wherein the characteristic is estimated.   For at least one of the steering operation, the accelerator operation, and the brake operation, variation in the maximum value of the operation amount for each operation when the operation is performed a plurality of times, and the operation speed for each operation when the operation is performed a plurality of times The driving | operation driving | operation of Claim 4 which obtains the stability of the said driving operation by using as an index at least one of the dispersion | variation in the maximum value of this, and the dispersion | variation in the smoothness for every operation when operation is made in multiple times. Posture adjustment device.   6. The driving posture adjustment device according to claim 4, wherein the driving operation abruptness is obtained using at least one of a steering operation frequency, a maximum steering angular velocity value, and a turn signal operation frequency as an index. .   The driving posture adjusting apparatus according to any one of claims 4 to 6, wherein the predetermined driving scene is a driving scene in which a burden of driving operation increases.   The driving posture adjusting apparatus according to any one of claims 4 to 7, wherein the predetermined traveling scene is a curved traveling scene.   9. The driving operation characteristic estimation means estimates the characteristics of the driving operation using the smoothness of the driving operation as an index based on the degree of variation in steering operation, accelerator operation, and brake operation. The driving posture adjusting apparatus according to any one of the above.   The driving posture adjustment according to any one of claims 1 to 9, wherein the flexibility estimating means estimates the flexibility of the driver's body based on the behavior of the driver when getting on and off the vehicle. apparatus.   Door opening degree detecting means for detecting the opening degree of the door of the driver's seat when the driver gets on and off the vehicle, floor load detecting means for detecting the load applied to the driver's seat floor when the driver gets on and off the vehicle, Seat load detecting means for detecting a load applied to the driver's seat when the driver gets on and off the vehicle, and the flexibility estimating means includes the door opening detected by the door opening detecting means, the floor The flexibility is estimated based on at least one of a load applied to a driver's seat floor detected by a load detector and a load applied to a driver's seat detected by the seat load detector. The driving posture adjusting apparatus according to any one of 10.   The flexibility estimating means is based on at least one of the maximum value of the load applied to the driver's seat floor detected by the floor load detecting means and the maximum value of the load applied to the driver's seat detected by the seat load detecting means. The driving posture adjusting apparatus according to claim 11, wherein the flexibility is estimated.   The driving according to claim 11 or 12, wherein the flexibility estimating means estimates that the greater the maximum value of the load applied to the driver's seat floor detected by the floor load detecting means is, the higher the flexibility is. Posture adjustment device.   The flexibility estimation means estimates that the flexibility is lower as the maximum value of the load applied to the driver's seat detected by the seat load detection means is larger. The driving posture adjusting device according to item.   The adjustment means which adjusts the state of the in-vehicle equipment which influences a driver | operator's driving operation based on the said driving attitude estimated by the said driving attitude estimation means is provided. The driving posture adjusting device according to 1.   The adjusting means adjusts at least one of a position in the vehicle front-rear direction, a vertical position, and an angle of a backrest of the driver's seat based on the flexibility estimated by the flexibility estimating means. The driving posture adjusting apparatus according to claim 15.   As the flexibility increases, the adjusting means positions the steering toward the front of the vehicle and above, and changes the angle of the backrest of the driver seat to an angle in the direction in which the backrest of the driver seat falls to the rear of the vehicle. The driving posture adjusting apparatus according to claim 16, wherein   The adjusting means is based on the characteristics of the driving operation using the smoothness of the driving operation estimated by the driving operation characteristic estimating means as an index, and the position and the vertical position of the steering in the vehicle longitudinal direction and the angle of the backrest of the driver seat. The driving posture adjusting apparatus according to any one of claims 15 to 17, wherein at least one of the adjusting means is adjusted.   Based on the characteristics of the driving operation using the stability of the driving operation estimated by the driving operation characteristic estimating unit as an index, the adjusting unit includes a position of the steering in the vehicle longitudinal direction and a tilt angle of the steering in the vehicle longitudinal direction. The driving posture adjusting apparatus according to any one of claims 15 to 18, wherein at least one of the driving position adjusting means is adjusted.   Based on the characteristics of the driving operation using the abruptness of the driving operation estimated by the driving operation characteristic estimating unit as an index, the adjusting means includes a position of the steering in the vehicle longitudinal direction and a tilt angle of the steering in the vehicle longitudinal direction. The driving posture adjusting device according to any one of claims 15 to 19, wherein at least one of the driving angle is adjusted.   The adjusting means causes the steering to be positioned closer to the rear of the vehicle as the driving operation becomes more rapid, and changes the tilt angle of the steering in the vehicle front-rear direction to an angle in a direction in which the steering is vertical. The driving posture adjusting apparatus according to claim 20.   The adjusting means adjusts the front / rear position of the driving operation pedal based on the characteristic of the driving operation using the change degree of the driving operation before and after the predetermined driving scene estimated by the driving operation characteristic estimating means as an index. The driving posture adjusting apparatus according to any one of claims 15 to 21.   23. The driving posture adjusting apparatus according to claim 22, wherein the adjusting means positions the driving operation pedal closer to the rear of the vehicle as the degree of change in the driving operation is higher.   24. The driving attitude estimation means weights the flexibility and the characteristics of the driving operation to estimate a driving attitude of the driver when seated in a driver seat. The driving posture adjusting device according to 1.   Reference posture determining means for determining a reference posture of the driver at the time of sitting in the driver seat adapted to the physique factor, the driving posture estimation means is based on the reference posture determined by the reference posture determination means The driving posture adjusting apparatus according to any one of claims 1 to 24, wherein the driving posture of the driver is estimated.   The driving posture derived from the physique of the driver is corrected based on the flexibility of the driver's body and the characteristics of the driving operation of the driver, and the driving posture of the driver when seated in the driver's seat is estimated Driving posture adjustment device. A driver seat where the driver is seated;
A steering wheel installed at the front position of the driver seat;
A brake pedal and an accelerator pedal installed at a lower front position of the driver seat;
A physique factor acquisition means for acquiring a physique factor of the driver;
A flexibility estimation means for estimating the driver's body flexibility;
Driving operation characteristic estimation means for estimating the driving operation characteristics of the driver;
Based on the physique factor acquired by the physique factor acquisition means, the flexibility estimated by the flexibility estimation means, and the characteristics of the driving operation estimated by the driving operation feature estimation means, the driver's seated seat Driving posture estimation means for estimating the driving posture;
Based on the driving posture estimated by the driving posture estimation means, at least one of the position of the driver's seat, the position of the steering wheel and the inclination in the vehicle front-rear direction, and the positions of the brake pedal and the accelerator pedal is adjusted. An automobile comprising adjusting means.   Driving, characterized by estimating the driver's driving posture when seated in the driver's seat based on the estimated value of the driver's physique factor, the driver's body flexibility, and the estimated characteristics of the driver's driving operation Posture adjustment method.

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