JP2010164312A - Seat mounting mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat mounting mechanism of high convenience to allow reuse of a test device part including an occupant seat part. <P>SOLUTION: Reuse of a test device part is enabled only by disposing an attachment 41 between the space of a seat part in each test vehicle to be evaluated for performance by mounting an actuator 10 between an operation pedal 22 and a base flame 32 of the occupant seat part and operating the actuator 10, by connecting the base flame 32 and the floor surface of the test vehicle through the attachment 41 with the surface on the base flame 32 side serving as a common attachment surface 41A to the base flame 32 and the surface on the floor surface side serving as a special attachment surface 41B to the floor surface of the test vehicle. With this structure, it is possible to set the precise test device capable of constant and stable control without being affected by variations among test drivers, only by preparing the low-cost attachment 41. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle seat mounting mechanism in which an actuator is mounted between a pedal for operation in a vehicle under test and a base frame of an occupant seat, and the performance of the vehicle under test is evaluated by operating the actuator. . In particular, the present invention is applied as a test apparatus having an actuator mounted on a brake operation pedal for a brake performance evaluation test, but can also be used as a seat mounting mechanism of a test apparatus that performs other pedal operations.

  At present, for example, various types of support devices have been proposed for use in evaluating the braking performance of a vehicle. And with regard to the evaluation of brake performance, of course, the evaluation of the brake itself is of course, along with the advancement of evaluation technology, such as evaluation tests on squeal and abnormal noise during braking, effectiveness characteristics of the brake, feeling evaluation during braking, etc. Evaluation tests based on complex and special braking conditions that are different from the conventional ones are now required. Therefore, a test driver who rides on the vehicle under test and performs an evaluation test operates the brake pedal to perform the evaluation test under various complicated and special braking conditions. However, in order for a test driver to perform special braking, there are individual differences in the skill and experience of the test driver, and it has been difficult to perform constant and stable appropriate braking. For this reason, some support devices used for evaluating brake performance have been proposed (see, for example, the following documents).

Anthony Best Dynamics "Brake Robot" (Browsing on the Internet 11.11.30, see http://www.abd.uk.com/)

  The conventional ABD brake robot disclosed in Document 1 will be briefly described with reference to FIG. This brake robot is disclosed in which a rod end of an actuator is pivotally supported on a connecting shaft fulcrum between a link member mounted on a brake pedal and a link member mounted on a frame installed on an occupant seat. Then, by operating the actuator without human intervention, it functions as a support device for the brake performance evaluation test. As can be understood from the test data table in the document, feedback control is performed as control items based on brake pedal depression force, brake pedal stroke, and signal input from the vehicle acceleration / decelerometer, Various link performance evaluation tests can be performed by the link member mounted on the pedal depressing the brake pedal.

  However, in the brake robot of this conventional example, it is necessary to connect one of the link members in which the actuator is incorporated at the connection shaft fulcrum to the frame installed in the passenger seat portion of the vehicle under test. Therefore, in order to install the frame on the occupant seat of the vehicle under test, troublesome work for installing the frame on the occupant seat must be performed, and the work of processing the occupant seat for each vehicle under test is troublesome. In addition, the mounting space on the base frame in the passenger seat portion is limited, and there is a possibility that the frame cannot be installed. For this reason, it has become necessary to change the processing or combination form of a test apparatus such as a link member including a slightly complicated actuator in accordance with the shape of the passenger seat portion of the vehicle under test. This has led to a situation in which the number of vehicles under test is prepared as many as test devices, resulting in an increase in cost.

  Therefore, the present invention aims to provide a highly convenient seat mounting mechanism that solves the problems in the conventional operation support device and enables the use of the test device portion including the passenger seat portion. To do.

  For this reason, the present invention provides a vehicle seat mounting in which an actuator is mounted between a pedal for operation in a vehicle under test and a base frame of an occupant seat, and the performance of the vehicle under test is evaluated by operating the actuator. In the mechanism, the upper part from the base frame and the actuator are used as a common test apparatus, and the base frame side is a common mounting surface to the base frame between the base frame and the floor surface of the vehicle under test. It is characterized by being connected by an attachment that is a dedicated mounting surface on the floor surface of the vehicle under test. According to the present invention, the pedal is a brake pedal, and these are means for solving the problem.

According to the present invention, an actuator is mounted between a pedal for operation in a vehicle under test and a base frame of an occupant seat portion, and the seat mounting of a vehicle for evaluating the performance of the vehicle under test by operating the actuator. In the mechanism, the upper part from the base frame and the actuator are used as a common test apparatus, and the base frame side is a common mounting surface to the base frame between the base frame and the floor surface of the vehicle under test. By connecting with an attachment that is a dedicated mounting surface on the floor of the vehicle under test, a simple structure attachment for each vehicle under test was inserted between the seat and the occupant seat. Because the test equipment can be reused, variations due to skill differences of test drivers can be achieved only by preparing low-cost attachments. Effect without being, can be performed with high accuracy of the test apparatus for enabling stable control at constant.
In addition, when the pedal is a brake pedal, the actuator including the passenger seat can be used as a brake performance test device, so that it is stable and stable without being affected by variations due to the characteristics of the test driver. It is possible to perform a brake performance evaluation test or the like with high evaluation accuracy at a low cost.

1A and 1B show a first embodiment of a special braking assistance device employing a seat mounting mechanism of the present invention, in which FIG. 1A is a longitudinal sectional view of FIG. 4 and FIG. 1B is a base frame with a seat portion removed. It is a perspective view which shows an attachment rail member. 1 is a system schematic diagram of a special braking assistance device that employs a seat mounting mechanism of the present invention. It is a perspective view which shows the modification of a rail member similarly. It is a perspective view of a driver seat vicinity. FIG. 5 is a partial cross-sectional plan view of FIG. 4. FIG. 5 is a front view of FIG. 4. FIG. 4 is a cross-sectional view of a principal part showing a connection state between the actuator and the brake pedal connection portion of the partial cross section. FIG. 5 is a longitudinal sectional view of the vicinity of a driver's seat, showing a second embodiment of the special braking assistance device in which the seat mounting mechanism of the present invention is adopted. It is a perspective view of a driver seat vicinity. FIG. 10 is a partial cross-sectional plan view of FIG. 9. FIG. 10 is a front view of FIG. 9. It is explanatory drawing of the brake robot of a prior art example.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for implementing a seat mounting mechanism according to the invention will be described with reference to the drawings. As shown in FIG. 1, the basic configuration of the present invention is that an actuator 10 is mounted between an operation pedal 22 and a base frame 32 of an occupant seat 30 in a vehicle under test, and the actuator 10 is operated. In the vehicle seat mounting mechanism for evaluating the performance of the vehicle under test, the upper part from the base frame 32 and the actuator 10 are used as a common test apparatus, and the base frame 32 and the floor surface of the vehicle under test are connected. The base frame 32 side is connected by an attachment 41 having a common mounting surface 41A to the base frame 32 and a floor surface side being a dedicated mounting surface 41B to the floor surface of the vehicle under test.

  As the seat mounting mechanism of the present invention, an example applied to a brake performance test apparatus will be described below. As shown in FIG. 2A, in the brake device before the support device such as an actuator is attached, the pedal lever 21 swings around the support shaft by the depression of the brake pedal 22, and one end of the pedal lever 21 is By pushing a piston rod (not shown) of the supported master cylinder 3, the brake pressure oil acts on the left and right brakes 5, 5 from the master cylinder 3 through the output pipe 6, and the disc rotors 4, 4 are clamped and controlled. Generate power. A hydraulic pressure sensor 9 is disposed in the output pipe 6, and an acceleration sensor 7 for detecting the acceleration / deceleration of the vehicle is disposed at an appropriate portion of the vehicle. A wheel speed sensor 8 comprising an encoder is attached to the wheel. Special brake assist system (Special Brake Assist System) that employs the seat mounting mechanism of the present invention for such a brake system. A wide range of brake evaluation tests that require a wide range of evaluation items for each complex, special and diverse braking condition. A support device adapted to adapt to the following: a control unit or SBAS) is attached.

  A brake pedal connecting portion (attachment) 20 is attached by sandwiching the brake pedal 22 from above and below, and an electric actuator 10 that is operated by an electric motor that is operated by a power source or the like is attached to the attachment 20. The proximal end portion side of the actuator 10 is attached to the upper end portion of the arm portion 50 that is erected on the base frame 32 in the seat portion 30 of the occupant. The actuator 10 is electrically controlled by receiving a control signal from the SBAS controller 2. The actuator 10 is provided with a force sensor 12 corresponding to the depression pressure of the brake pedal 22 and a stroke sensor 11 corresponding to the stroke of the brake pedal 22. The control unit 2 obtains signals from the force sensor 12, the stroke sensor 11, the hydraulic pressure sensor 9, the wheel speed sensor 8, and the acceleration sensor 7, and performs feedback control. In addition, a control command is sent from the control setting unit 1 such as a personal computer to the control unit 2.

  As shown in FIG. 2B, the control unit 2 is selected by the control pattern selection unit 2A for recording and selecting various control patterns set by the control pattern setting unit 1A in the CPU of the personal computer 1 or the like. A start button 2B for starting control of the specific control pattern, a signal processing unit 2C for performing feedback control while inputting data from each sensor for the specific control pattern, and a control history recording unit 2D thereof. The data of the control history recording unit 2D is recorded in the data storage unit 1B in the CPU of the personal computer 1 or the like.

The control command set in the control setting unit 1 can have various modes as exemplified below.
(1) Constant control.
(2) Follow-up control that gradually depresses the brake pedal at a constant rate.
(3) Stepping control to step on the brake pedal step by step.
(4) Each control of the above (1) to (3) etc. by an expert.
(5) Each control of the above (1) to (3) by the beginner.
(6) Each control of the above (1) to (3) by a specific Mr. A.
(7) Control to generate brake squeal during nose dive.
By setting these control settings in advance in the control setting unit 1, an occupant boarding for an evaluation test selects a control pattern in the control pattern selection unit 2 </ b> A in the control unit 2 and starts In addition to feedback control using the signals from each sensor as input values, a wide variety of evaluation items are required for each of the more complex, special, and diverse braking conditions that are set in advance. It is possible to adapt to a wide range of brake evaluation tests. At this time, since the control does not involve braking control by the occupant with variation, constant and stable control data can be obtained. Therefore, the evaluation efficiency can be greatly improved by realizing a small number of evaluation tests with high evaluation accuracy.

  The attachment form of the special braking assistance device in which the seat attachment mechanism of the present invention is adopted will be described in detail. As shown in FIG. 4, the connection plate 23 is attached so as to sandwich the top and bottom of the brake pedal 22 (see FIG. 6, which is a front view of FIG. 4) at the lower end of the pedal lever 21. 6 clearly understands the state in which the brake pedal 22 at the lower end portion of the pedal lever 21 is sandwiched from above and below and the connection plate 23 of the brake pedal connection portion (attachment) 20 is attached. Returning to FIG. 4, the magnet joining cylinder part 27 is attached to the connection plate 23 via the hinge part 26. A connecting fitting at the tip of the piston rod 15 of the actuator 10 is inserted into the magnet-joined cylindrical portion 27 and is magnetically connected by a magnet described later. The base end side of the actuator 10 is connected to the upper end portion of an actuator fixing bracket 54 that constitutes an arm portion 50 that is erected and planted by fixing a bolt or the like to a base frame 32 on which a passenger (driver) seat 31 is placed. Connected. Since the actuator fixing bracket 54 is fixed without swinging, as shown in FIG. 1A, between the upper end portion of the actuator fixing bracket 54 and the connection portion 53 to which the base end side of the actuator 10 is connected. By selectively inserting shims (spacers) 55 having different thicknesses, the height of the base end portion of the actuator 10 with respect to the base frame 32, that is, the operating angle of the actuator 10 to the brake pedal 22 is adjusted. be able to.

  The seat mounting mechanism of the present invention will be described in detail with reference to FIGS. As shown in FIG. 1A, the lower end portion of the actuator fixing bracket 54 is fixed to the base frame 32 with a bolt or the like, and the angle of the actuator 10 with respect to the base frame 32 can be adjusted by selectively providing a spacer 55. Has been. The base frame 32 is attached to the rail member 41 in the base frame attachment rail member 40 attached to the floor of the vehicle body of the vehicle under test. As shown in FIG. 1B, which is a perspective view showing a base frame mounting rail member with the seat portion 30 removed, these rail members 41 are prepared as attachments for each vehicle under test. The rail member 41 is an attachment in which the base frame 32 side is a common mounting surface 41A to the base frame 32 and the floor surface side is a dedicated mounting surface 41B to the floor surface of the vehicle under test. Is interposed between the test device, which is a special braking support device including the vehicle, and the floor surface of the vehicle under test. Thus, by providing the rail member 41 having a simple structure as an attachment suitable for each vehicle under test, a specific positional relationship between the position of the brake pedal 22 and the mounting portion of the seat portion 30 on the floor in the vehicle under test is provided. Will be adjusted appropriately.

  FIG. 3 is a perspective view showing a modification of the rail member. In the embodiment shown in FIG. 3A, it is understood that the left and right rail members 41, 41 have different specifications such as the dimensions of the dedicated mounting surface 41B on the vehicle floor surface for each vehicle under test. The embodiment shown in FIG. 3 (B) is a square shape in a plan view, the left and right are connected, and the attachment surface 41A to the base frame 32 of the seat portion 30 constituting the test apparatus has versatility. The dedicated mounting surface 41B has a dedicated property to the vehicle floor for each vehicle under test. The embodiment shown in FIG. 3C has a rectangular frame shape in plan view. In this example, the weight is reduced as compared with the example of FIG. 3B, and the distance between the left and right widths of the general-purpose mounting surfaces 41A and 41A is aligned with the mounting portion in the base frame 32 constituting the test apparatus.

  As shown in FIG. 5, a seat base 34 that is slidably fixed to the lower portion of the seat 31 is gripped by the seat rail 33 that is mounted on the base frame 32. Positioning lock / release between the seat pedestal 34 and the seat rail 33 is performed by engaging and disengaging the seat slide lever 35. A board 24 is formed at a position deviated from the axis of the actuator 10 on the connection plate 23 attached with the brake pedal 22 interposed therebetween, and a sensor unit 25 is installed on the surface of the board 24.

  FIG. 7 is a cross-sectional view of a main part showing a connection state between the actuator and the brake pedal connecting part in a partial cross section. A permanent magnet (for example, a magnetic force of 22 Kgf) 28 installed at the bottom of a magnet-joined cylinder 27 whose lower end is pivotally supported by a hinge 26 on the attachment 20 is arranged in the cylinder 14 of the actuator 10. A connection fitting 16 fixed to the tip of the provided piston rod 15 is adsorbed. During the brake control in the normal brake performance evaluation test, the piston rod 15 moves forward and backward based on the rotational drive from the electric motor 13 or the like according to the control signal from the control unit 2, and the brake pedal 22 is automatically operated via the attachment 20. Will be operated. Reference numeral 11 denotes a stroke sensor.

  During the brake performance evaluation test by the actuator 10 of the special braking assist device (SBAS), if it becomes necessary to operate the emergency brake for some reason, the occupant uses the board 24 installed on the connection plate 23 of the attachment 20. By stepping with a strong force, the adsorption between the permanent magnet 28 at the bottom in the magnet-joined cylindrical portion 27 and the connection fitting 16 at the tip of the piston rod 15 is separated. When the connection fitting 16 slides, for example, 20 mm in the magnet-joined cylindrical portion 27, the actuator 10 falls off. As a result, the vehicle is released from the brake control by the actuator 10. The actuator 10 is reset by inserting and returning the connection fitting 16 at the tip of the piston rod 15 into the magnet-joined cylindrical portion 27 by a sufficiently deep stepping of the substrate 24. Further, when the actuator 10 is fixed, the quick release pin 18 that pivotally connects the rod end bearing 17 at the base end portion of the actuator 10 to the connection portion 53 at the upper end portion of the actuator fixing link 51 is pulled out. After removing the base end portion of the actuator 10, the connecting bracket 16 at the tip end of the piston rod 15 is removed from the magnet-joined tube portion 27, so that the actuator 10 is repaired or replaced.

  FIG. 8 shows a second embodiment of the special braking assistance device in which the seat mounting mechanism of the present invention is adopted, and is a longitudinal sectional view in the vicinity of the driver's seat. In the first embodiment, the adjustment of the angle (operating angle) of the actuator 10 with respect to the base frame 32 is based on the selective intervention of the spacer 55, whereas in the first embodiment, the swinging is performed. The flexible actuator fixing link 51 and the adjuster 52 are expanded and contracted. More specifically, the base end portion side of the actuator 10 is connected to the upper end portion of the actuator fixing link 51 that constitutes the arm portion 50 that is erected on the base frame 32 on which the occupant (driver) seat 31 is placed. It is connected to the portion 53 by a support shaft. An adjuster mechanism 52 is interposed between an appropriate portion in the middle of the actuator fixing link 51 and the base frame 32. By adjusting the inclination of the actuator fixing link 51 by adjusting the adjuster mechanism 52, the brake pedal 22 and the actuator 10 are adjusted. The positional relationship with the base frame 32 can be finely adjusted.

  FIG. 9 is a perspective view of the vicinity of the driver's seat, and the connection form of the connection portion by the support shaft between the base end portion side of the actuator 10 and the actuator fixing link 51 is clearly understood. As described above, the base end portion side of the actuator 10 is connected to the upper end portion of the actuator fixing link 51 that constitutes the arm portion 50 erected on the base frame 32 on which the driver's seat 31 is placed. The actuator fixing link 51 is adjusted by adjusting an adjuster mechanism 52 that is connected between the base frame 32 and an appropriate portion in the middle of the actuator fixing link 51.

  FIG. 10 is a partial cross-sectional plan view of the vicinity of the driver's seat and corresponds to FIG. 5, but the illustration of the seat 31 that is the driver's seat is omitted. Only the swingable actuator fixing link 51 as the adjusting means in this embodiment is shown, and the adjuster 52 is hidden under the actuator fixing link 51 and cannot be seen. FIG. 11 is a front view of the vicinity of the driver seat and corresponds to FIG. Also in FIG. 11, a plate-like swingable actuator fixing link 51 is shown, and the adjuster 52 is hidden behind the actuator 10 and cannot be seen.

  Although the embodiments of the present invention have been described above, within the scope of the present invention, the shape and type of the vehicle under test, the shape and type of the pedal for operation (preferably for the brake pedal, (Not limited to this) shape of passenger seat as test equipment, form, shape of base frame, form, attachment form of actuator to base frame, attachment form of actuator to pedal, evaluation of running performance of vehicle under test The form, the shape of the rail member as an attachment (the shape of the common mounting surface to the base frame, and the shape of the dedicated mounting surface to the vehicle floor to be tested), the type, and the like can be selected as appropriate. The specifications described in the examples are merely examples in all respects and should not be interpreted in a limited manner.

10 Actuator 20 Brake pedal connection (attachment)
DESCRIPTION OF SYMBOLS 21 Pedal lever 22 Brake pedal 27 Magnet joint cylinder part 30 Seat part 31 Seat 32 Base frame 33 Slide rail member 34 Seat base 40 Base frame attachment rail member 41 Rail member (attachment)
41A Common mounting surface 41B Dedicated mounting surface 50 Arm 51 Actuator fixed link 52 Adjuster mechanism 53 Upper end connection

Claims (2)

In a vehicle seat mounting mechanism in which an actuator is mounted between an operation pedal in a vehicle under test and a base frame of an occupant seat, and the performance of the vehicle under test is evaluated by operating the actuator, the base frame The upper part and the actuator are used as a common test apparatus, and the base frame side is a common mounting surface to the base frame between the base frame and the floor surface of the vehicle under test, and the floor side is the floor surface of the vehicle under test. A seat mounting mechanism characterized by being connected by an attachment that is a dedicated mounting surface. The seat mounting mechanism according to claim 1, wherein the pedal is a brake pedal.

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