JP6188146B2 - Vehicle planning support system - Google Patents

Description

  The present invention relates to a vehicle planning support system.

  An automobile has an instrument panel extending in the vehicle width direction in front of the driver seat and the passenger seat. Then, the front seat passenger, that is, the driver seat passenger or the passenger seat passenger is seated while facing the instrument panel. The position of the rear surface of this instrument panel, especially the position from the rear protruding end that is easily visible to the front seat occupant to the front part (top surface shape) Will have a positive impact. Patent Document 1 discloses a device that gives a sense of security by raising the front part of the instrument panel during high speed traveling to narrow the occupant's field of view.

JP 2005-247245 A

  By the way, when planning a vehicle, it is devised to give the front seat occupant a feeling of spaciousness in a narrow vehicle space. In particular, the instrument panel tends to give the front seat occupant a feeling of pressure. There is no established method for evaluating the feeling of oppression given to the front seat occupants by the instrument panel, and the current situation is that evaluation is based on prototypes. In particular, since the instrument panel is a three-dimensional existence extending in the front-rear direction and the vehicle width direction, it is necessary to three-dimensionally understand the feeling of pressure that the instrument panel gives to the front seat occupant. And since a passenger's seat passenger faces an instrument panel directly, the feeling of pressure by an instrument panel becomes a problem especially easily.

  The present invention has been made in consideration of the above circumstances, and the purpose of the present invention is to provide a vehicle planning support system that can quantitatively evaluate the feeling of pressure given to a front seat passenger by an instrument panel to be planned. It is to provide.

  In order to achieve the above object, in the present invention, the actual distance and the front seat occupant are basically within a predetermined distance range assuming the distance from the front seat occupant to the vicinity of the rear end of the instrument panel. Considering a horopter surface whose perceived distance agrees with or almost coincides with the perceived distance, it is hard to feel a sense of pressure when the instrument panel is aligned with or ahead of this horopter surface. This is based on the knowledge that it is easy to feel pressure when the instrument panel protrudes backward.

Specifically, the following solution is adopted in the present invention. That is, as described in claim 1,
A vehicle planning support system that evaluates a feeling of pressure given to a front passenger by an instrument panel,
Storage means for storing as a database a perceptual surface composed of a horopter surface in which an actual distance set within a predetermined distance range ahead of the front seat occupant and a perceived distance felt by the front seat occupant are substantially the same;
An input means for inputting plan data relating to the instrument panel to be planned;
Of the project data input by the input means, a protruding volume calculating means for calculating the volume of the portion protruding rearward from the perceptual surface stored in the storage means;
Based on the protruding volume calculated by the protruding volume calculating means, an evaluation means for evaluating the feeling of pressure given to the front seat occupant by the instrument panel to be planned,
It is supposed to be equipped with. According to the above solution, the feeling of pressure given to the front seat occupant can be quantitatively evaluated on the basis of the perceptual surface including the horopter surface. Further, since the index indicating the degree of pressure, such as the protruding volume, is grasped as a three-dimensional numerical value, the obtained evaluation is extremely appropriate.

A preferred mode based on the above solution is as described in claim 2 and the following. That is,
The predetermined distance range is set to 500 mm to 700 mm in the horizontal distance from the position of the eyes of the front seat occupant (corresponding to claim 2). In this case, according to the selection (change) of the predetermined distance, it is possible to appropriately quantitatively evaluate the feeling of pressure while supporting various sizes of the planned vehicle, in particular, small to large passenger cars.

  The protruding volume calculating means calculates the protruding volume by integrating an area of a portion in which the plan data protrudes rearward from the perceptual surface in a vehicle width direction in a side view (Claim 3). Correspondence). In this case, a specific method for calculating the protruding volume can be provided.

  Based on the evaluation by the evaluation means, the apparatus further comprises a correction means for correcting the plan data (corresponding to claims). In this case, it is possible to easily obtain plan data in which the feeling of pressure is within a desired range by repeating the comparison of the revised plan data with the perceptual surface.

The front passenger is considered a passenger
The evaluation object of the feeling of pressure is made to be a part facing the front passenger seat in the instrument panel that is the planning object (corresponding to claim 5). In this case, it is possible to evaluate the feeling of pressure on the passenger in the passenger seat where the feeling of pressure is likely to be a problem because it directly faces the instrument panel.

  ADVANTAGE OF THE INVENTION According to this invention, the feeling of pressure which an instrument panel gives with respect to a front seat passenger | crew can be evaluated quantitatively.

The figure which shows an example of an instrument panel part. The figure which shows the horopter surface which a passenger's seat passenger feels the same distance. The figure which shows the horopter surface of FIG. 2 as a side view in the passenger | crew's passenger | crew's straight front position. The figure which shows the protrusion area of the part which the instrument panel protrudes back from the horopter surface. The figure which shows the example of evaluation of the feeling of pressure based on a protrusion volume. The figure which shows the example of a control system of this invention in a block diagram. The flowchart which shows the example of control of this invention. The flowchart which shows the example of control of this invention.

  In FIG. 1, 1 is a steering handle, 2 is a front window glass, and 3 is an instrument panel extending in the vehicle width direction at the front of the vehicle interior. In FIG. 1, it is a right-hand drive vehicle.

  FIG. 2 shows the horopter surface H obtained when the passenger seat passenger J traces the perceived distance in the vertical and horizontal directions that he feels (perceives) at a certain equidistant distance (for example, 600 mm). The horopter surface H is an upwardly inclined surface in the vertical direction, and is gradually positioned forward (back side) as it goes upward in the elevation (upward) direction, with the horizontal line passing through the eyes of the passenger on the passenger seat as a boundary. As it goes downward, it is gradually located at the rear (front). In addition, the horopter surface H is a curved surface that protrudes outward from the passenger seat passenger J (eyes) in the left-right direction.

  In the state where the passenger on the passenger seat J looks directly ahead, the side surface of the horopter surface H is a straight line that rises forward as shown in FIG. In FIG. 3, if the actual distance to the horopter plane H on a certain line of sight is 600 mm, for example, the actual distance to the horopter plane H with respect to the upper position is a distance greater than 600 mm.

  The passenger occupant J feels a moderate feeling of spaciousness when the perceived distance to the instrument panel 3 and the actual distance coincide with each other. Now, if the rear end position of the instrument panel 3 on the passenger seat side is located in front of “just the right distance”, a feeling of spaciousness is increased, but anxiety is felt during high-speed driving. On the contrary, if the rear end position of the instrument panel 3 on the passenger seat side is located behind the “just right distance”, the sense of security increases at the time of high speed driving (the feeling of being wrapped in the vehicle becomes stronger). , The feeling of pressure becomes stronger.

  The large three-dimensional volume portion of the instrument panel 3 that extends in the front-rear direction and the vehicle width direction facing the passenger occupant J greatly affects the feeling of pressure applied to the passenger occupant J. Consider a case where the horopter plane H is set to a horizontal distance of, for example, 600 mm from the passenger occupant J (eyes). Even if the amount of rearward protrusion from the horopter surface H is small, if it extends over the entire length in the vehicle width direction, the overall volume of the portion protruding backward increases, and the feeling of pressure on the passenger occupant J is considerably large. It becomes things. On the contrary, if the volume protruding backward is large and it is a partial volume, the feeling of pressure given to the passenger on the passenger seat J is considerably small. The distance to the horopter surface H is not limited to 600 mm, and can be set as appropriate within a range of, for example, about 500 to 700 mm in consideration of the size of the vehicle to be planned, the vehicle type, and the like.

  In FIG. 4, the area of the portion of the instrument panel 3 that protrudes rearward from the horopter surface H in the side view is indicated by hatching in the drawing. By integrating such an area over the vehicle width direction facing the passenger seat passenger J, the volume of the portion of the instrument panel 3 that protrudes rearward from the horopter surface H (projection volume) is calculated. It will be. Specifically, for example, one area is obtained for each small interval (for example, 1 to 5 mm) in the vehicle width direction, and the volume of the small interval portion is determined by multiplying this area and the small interval. The protruding volume can be obtained by adding a large number of volumes obtained as described above.

  FIG. 5 shows a setting example (evaluation example) of the relationship between the rearward protruding volume and the compression feeling obtained as described above. It should be noted that the evaluation of the feeling of pressure is relative. For example, when the evaluation value of the feeling of pressure on a certain actual vehicle (especially a plurality of vehicle types) is known, another vehicle on which a certain evaluation value is obtained based on that evaluation value. You will also be able to understand the feeling of oppression about. Incidentally, for example, in a sports car, it is desired to have an appropriate feeling of pressure, and in a family car, it is desired that the feeling of pressure be avoided as much as possible. In FIG. 5, when the rear end surface of the instrument panel 3 is positioned forward of the horopter surface H (perception surface), the volume (front volume) between the rear end surface of the instrument panel and the horopter surface H is also obtained. Therefore, it is set so that the evaluation value for the spaciousness can be determined.

  FIG. 6 is a block diagram showing an example of the control system of the present invention. In the figure, U is a controller (simulator) configured using a microcomputer. Reference numeral 10 denotes a storage means for storing a perceptual surface as a database composed of the horopter surface H, 11 denotes a display screen, and 12 denotes a storage means for storing final plan data that is OK as a result of a simulation described later. . Reference numeral 13 denotes storage means for storing instrument panel plan data. In other words, a plan instrument panel (corresponding to the instrument panel 3) in a plan vehicle is stored in the storage means 13 in the form of plan data (plan model), for example, CAD data as three-dimensional data. The storage means 13 also stores passenger seat position data in the planned vehicle. Reference numeral 14 denotes correction means for correcting the plan data stored in the storage means 13. Reference numeral 15 denotes an input means including a keyboard and a mouse for inputting plan data or modified plan data.

  Next, a control example of the controller U will be described with reference to FIG. In the following description, Q indicates a step. First, in Q1, the perceptual surface stored in the storage means 10 is read. Next, in Q 2, the instrument panel plan data and passenger seat data stored in the storage means 13 are read by being input by the input means 15. Note that the position of the sensory surface is set such that the passenger seat as the read data is set to an intermediate position in the slide range in the front-rear direction, and the passenger seat passenger J seated there is a standard physique ( AM95).

  After Q2, in Q3, a large number of areas of the projecting data that protrude backward from the perceptual surface are calculated at predetermined intervals in the vehicle width direction (the area of the hatched portion in FIG. Many are determined by changing the position of). Thereafter, in Q4, the backward projecting volume is calculated based on the values of the respective areas and the small intervals. Next, in Q5, the evaluation value related to the feeling of pressure is determined in light of the characteristics as shown in FIG. 5 of the rearward protruding volume obtained in Q4.

  After Q5, in Q6, it is determined whether or not the evaluation value of the feeling of pressure falls within the range intended by the designer. If YES in Q6, the plan data from which the current evaluation result is obtained is stored in the storage unit 12 as final plan data in Q7. If NO in Q5, the plan data is corrected in Q8, and the processes after Q3 are repeated. When the plan data is corrected in Q8, for example, an image display as shown in FIG. 4 is output to the display screen 11 and the rearward protruding area is also displayed, and the display screen is operated while operating the input means 15 serving as the operation means. 11, the plan data can be corrected (in FIG. 6, the plan data correction means 14 is displayed separately from the controller U, but it can also be a function of the controller U).

  Although the embodiments have been described above, the present invention is not limited to the embodiments, and appropriate modifications can be made within the scope of the claims. The feeling of pressure on the driver's seat occupant as the front seat occupant can be performed in the same manner as the case of the feeling of pressure on the passenger on the passenger seat. In addition, the instrument panel in front of the driver's seat often protrudes rearward in the vehicle width direction in particular so that the operation system for various devices can be easily accessed by the driver. In some cases, the amount of protrusion to the rear, the shape of the upper surface of the rear end portion, and the like are considerably different from those of the instrument panel in front of the seat. For example, it is possible to make the driver's seat passenger and the passenger seat passenger's feeling of pressure almost the same by devising the position setting of the display equipped in the vehicle width direction substantially central portion of the instrument panel. It can also be used as an evaluation for a sense of security when traveling at high speeds, or as an evaluation of a sense of spaciousness that is the opposite concept of a sense of pressure. In particular, when considering a sense of spaciousness, a front volume of a portion of the rear end portion of the instrument panel positioned in front of the perceptual surface including the horopter surface, and a rear protruding volume protruding rearward from the perceptual surface, It is possible to determine the deviation of the sq. And evaluate both the sense of spaciousness and the feeling of pressure based on this deviation. Of course, the object of the present invention is not limited to what is explicitly stated, but also implicitly includes providing what is substantially preferred or expressed as an advantage.

  The present invention is suitable for planning the shape of an instrument panel.

3: Instrument panel J: Passenger seat passenger H: Horopter plane U: Controller 10: Memory means (perception plane)
11: Display screen 13: Storage means (plan data)
14: Plan data correction means 15: Input means

Claims (5)

A vehicle planning support system that evaluates a feeling of pressure given to a front passenger by an instrument panel,
Storage means for storing as a database a perceptual surface composed of a horopter surface in which an actual distance set within a predetermined distance range ahead of the front seat occupant and a perceived distance felt by the front seat occupant are substantially the same;
An input means for inputting plan data relating to the instrument panel to be planned;
Of the project data input by the input means, a protruding volume calculating means for calculating the volume of the portion protruding rearward from the perceptual surface stored in the storage means;
Based on the protruding volume calculated by the protruding volume calculating means, an evaluation means for evaluating the feeling of pressure given to the front seat occupant by the instrument panel to be planned,
A vehicle planning support system characterized by comprising: In claim 1,
The vehicle planning support system, wherein the predetermined distance range is 500 mm to 700 mm in the horizontal distance from the position of the eyes of the front seat occupant. In claim 1 or claim 2,
The projecting volume calculating means calculates the projecting volume by integrating the area of the portion of the plan data projecting rearward from the perceived surface in the vehicle width direction in a side view. system. In any one of Claims 1 thru | or 3,
A vehicle planning support system, further comprising a correcting unit that corrects the plan data based on the evaluation of the evaluation unit. In any one of Claims 1 thru | or 4,
The front passenger is considered a passenger
A vehicle planning support system, characterized in that an evaluation target of a feeling of pressure is a portion facing the front passenger seat in an instrument panel targeted for planning.

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