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REAR VIEW MONITOR SYSTEM PERFORMANCE TEST PROCEDURE

Enacted: 4/1/2015

Revised: 3/20/2018

1. Effective Dates:

This testing method will be put into operation starting April 1, 2015. However, the new regulations set on

March 20, 2018 will go into effect starting April 1, 2018.

2. Scope of Application:

This test procedure applies exclusively to the "Rear View Monitor System" of passenger vehicles with 9

occupants or less and commercial vehicles with a gross vehicle mass of 2.8 tons or less conducted by the

National Agency for Automotive Safety and Victims’ Aid (hereinafter referred to as “NASVA”) in the new car

assessment program information supply project.

3. Definition of Terms:

The terms used in this testing method are defined as follows.

(1) "Rear View Monitor System": A system which provides the driver with the status of the areas in the

rear through images.

(2) "Mass at Vehicle Delivery": The condition of the test vehicle when fully loaded with fuel, lubricants,

coolants, etc. in the engine and fueling system, and equipped with onboard tools, spare tire, and

standard accessories.

(3) "Information Display Unit": A screen of the system that shows the information on the vehicle rear field

of vision. When there are several information display units, it refers to the main information display unit

(one unit) recommended by the vehicle manufacturer.

(4) "HP Mannequin": Denotes those prescribed in ISO6549-1999 or SAE standard J826 (1990).

(5) "Seating Reference Point": The position of the H point of the mannequin, such as the HP mannequin,

that has been placed in the seat by the method prescribed in the ISO6549-1990 (the hip point of such

models) or an equivalent design reference point that has been set up on the seat. In this case, when

the seat can be adjusted back and forth, up and down, or the seat backrest, such adjustment

mechanisms shall be put into the seat position of condition of 3.2 (2).

(6) "Back Angle": The backward inclination angle of the dynamic reference line when the passenger is

seated, which is the torso angle measured by the mannequin prescribed in ISO6549-1990 or an

equivalent design reference angle.

(7) "Standard Eye Point": The "point that represents the positions of driver's eyes under normal driving

conditions" as prescribed in the technical standards for anterior direct field of vision and the points that

pass through the points at the height of 635mm directly above the Seating Reference Point (hereinafter,

referred to as the "Standard Eye Point Center") on the line vertical to the vehicle’s center plane at the

symmetric internal from the center of the Standard Eye Point of 65mm (binocular). In this case, the

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center of the Standard Eye Point shall be corrected in the front-back direction and the up-down direction

for the correction distance depending on the size of the Back Angle of the test vehicle as listed in

Attachment 1.

(8) "Visual Object": A cylinder that is 0.3m in diameter and 0.6m high (Fig. 1 (a)) and a cylinder that is

0.3m in diameter and 0.9m high (Fig. 1 (b)). Furthermore, the markings on the Visual Objects (vertical

lines) shall be 0.2m wide in circumferential direction.

(9) "Vehicle Center Line": A line on the pavement that is positioned in the center in relation to the left and

right sides of a test vehicle at its mass at vehicle delivery.

(10) "Vehicle Rear Edge Line": A line on the pavement that perpendicularly crosses the Vehicle Center

Line and passes the rear edge of the test vehicle.

(11) "Vehicle Right Edge Line": A line on the pavement that is parallel to the Vehicle Center Line to the

right of the Vehicle Center Line at a distance of 1/2 of the vehicle's width. However, when the value of

the width at the position that is the widest in the posterior to the outside rearview mirror of a vehicle is

provided by the vehicle manufacturer, this value shall be used instead of the vehicle's width.

(12) "Vehicle Left Edge Line": A line on the pavement that is parallel to the Vehicle Center Line to the left

of the Vehicle Center Line at a distance of 1/2 of the vehicle’s width. However, when the value of the

width at the position that is the widest in the posterior to the outside rearview mirror of a vehicle is

provided by the vehicle manufacturer, this value shall be used instead of the vehicle's width.

(a) For proximity/adjacent field of vision measurements (b) For distance field of vision measurements

Figure 1: Visual Object Illustration

4. Test Conditions

4.1 Provision of Data from the Vehicle Manufacturer

0.3m

0.6

m

0.2m

0.9

m

0.2m

0.3m

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Vehicle manufacturers shall provide NASVA the following data required for test preparation:

(1) Appendix 1: "Vehicle Posterior Field of Vision Information System Performance Test Conditions

and Test Vehicle Specifications"

(2) Special reports related to test preparations (items related to the vehicle in question or special

reports unique tests for certain vehicle types, including the vehicle in question).

4.2 Test Vehicle Conditions

Conditions of the vehicle during the test shall be as follows:

(1) Vehicle Position: The test vehicle (mass at vehicle delivery) shall be in a straight-ahead position

with an HP Mannequin mounted in the driver's seat. Additionally, for vehicles equipped with

suspension systems that can adjust the ground height of the test vehicle, such systems shall be

adjusted so that the ground height is the standard value. Additionally, tire air pressure shall be

adjusted to the value for normal driving as described in the instruction manual.

(2) Seat Position: The driver's shall be adjusted to the positions as prescribed in (1) through (5) below.

Details for each adjusting device including a multiple-type adjusting device are shown in

Attachment 2. Additionally, other seat positions than the driver's seat shall be set at standard

positions and angles.

i. Forward-Backward Seat Adjustments: When it is possible to make forward-backward

adjustments, the driver's seat shall be positioned in the center of the front-back direction.

However, when it is not possible to position it exactly in the center of the front-back direction, it

shall be in a position that is posterior to the center of the front-back direction, but closest to the

center of the front-back direction that can be adjusted.

ii. Vertical Adjustments: When it is possible to make vertical adjustments (excluding models where

seat-lowering components and cushion/seatback angles are changed simultaneously), the

driver's seat shall be in the lowest position possible.

iii. Seatback Angle Adjustments: When it is possible to adjust the seatback angles, the seat shall

be adjusted to the standard angle. Additionally, when the seatback lumber support section can

be adjusted, it shall be adjusted to the most posterior position.

iv. Head Rest Height Adjustments: When it is possible to adjust the head rests in the vertical

direction, headrests shall be adjusted to the top notch position in vertical direction.

v. Any Other Adjustments that Could Affect the Test: When the driver's seat is featured with other

adjustment mechanisms other than the above 1-4 it shall be adjusted to the standard position

or angle.

(3) Information Display Unit: It shall be adjusted to the positions as prescribed in 1-2 below.

(i) When the angle of the information display unit is adjustable, adjust to its storing position.

(ii) When the information display unit of the System is installed in the interior rearview mirror, it shall

be adjusted to an angle where the center of the interior rearview mirror and the center of the vehicle

rear window (If the backseats obscure the window, remove the cushions, etc., and put the seatbacks

up), as well as the lower end of the vehicle rear window frame and the lower end of the mirror coincide

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with each other. (As seen from the position of the Standard Eye Point that is closer to the interior

rearview mirror.)

5. Testing Facilities

5.1 Testing Location

The location where the test is conducted shall have a flat and level surface.

5.2 Measuring Equipment

Measurement equipment used for the test and the measurement accuracy shall be as described below:

(1) Recording Camera: The camera of the system that shoots the information display unit shall be

capable of recording the display image at a resolution of 640×480 or more.

(2) 3D Measuring Equipment: The accuracy of the measurement equipment used for the precision

measurements of the position of the Standard Eye Point shall be 0.5mm/m or less.

6. Test Procedure and Recording Test Results

6.1 Recording of the Surrounding Conditions During Testing:

Record "Testing Date," "Test Location," "Test Overseer," "Test Vehicle Specifications and Condition,"

and "Test Conditions" in the various sections in Appendix 2.

6.2 HP Mannequin Setup:

(1) In the driver's seat, the HP Mannequin shall be installed at the position where the passenger center

plane of the seat position coincides with the right-left center plane of the HP Mannequin (installation

of legs not needed) with a posterior horizontal load of 100N. Then, weights shall be attached to the

right and left thighs and hip, and lastly, eight chest weights shall be placed by altering right and left.

Furthermore, if the HP Mannequin slips, a slip-proof mat (limited to those with the thickness that

will not have any impacts on testing) may be placed on the seat position.

(2) At the same height as the hanger bar, a posterior horizontal load of 10N shall be applied to the HP

Mannequin to stabilize the HP Mannequin's torso angle.

6.3 Vehicle Position Setup

Adjust the vehicle to its test position and use jacks to set the vehicle so its position will not change during

testing.

6.4 Recording Camera Setup

Use a tripod to place the recording camera in any position inside the test vehicle. The camera shall be

adjusted so that the center of the images to be taken shall be at the center of the information display unit in

both vertical and horizontal directions as much as possible.

6.5 The Test, and Recording of Test Results

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6.5.1 Proximity Field of Vision Measurements:

(1) The Visual Object for the proximity field of vision measurements shall be placed at three positions,

A through C on Fig. 2. The following are supplementary notes:

A) Position the Visual Object where the center of it is on the Vehicle Center Line and where the

surface of the Visual Object or a part of its extended surface contacts the vehicle.

B) Position the Visual Object where the bottom of it contacts the Vehicle Right Edge Line from

inside and where the surface of the Visual Object or a part of its extended surface contacts

the vehicle

C) Position the Visual Object where the bottom of it contacts the Vehicle Left Edge Line from

inside and where the surface of the Visual Object or a part of its extended surface contacts

the vehicle

(2) The display images shall be shot by the recording camera. Furthermore, for equipment that can

switch display images, the display images shall be switched to the one recommended by the vehicle

manufacturer, when the driver intends to check the Visual Object positions of A through C in a lump.

(3) Photos of the display images captured shall be checked and for each of the Visual Objects A through

C, "○" or "×" shall be entered in the "Display Area" column of Appendix 2 as described below:

When any part of the Visual Object is shown: ○

Anything other than the above: X

Fig. 2: Visual Object Installation Positions of Proximity Field of Vision Measurement

6.5.2 Adjacent Field of Vision Test

(1) The Visual Objects for the adjacent field of vision test shall be placed in two positions D and E of

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Diagram 3. Further, supplements are provided below:

D) Position where the center of the bottom of the Visual Object is 0.3m posterior to the Vehicle

Rear Edge Line and 0.3m right to the Vehicle Right Edge Line

E) Position where the center of the bottom of the Visual Object is 0.3m posterior to the Vehicle

Rear Edge Line and 0.3m left to the Vehicle Left Edge Line

(2) On the System's display image, the Visual Objects shall be adjusted to the directions where

markings can be checked easily, and the display image shall be shot by the recording camera.

Furthermore, for equipment that can switch display images, the display image shall be switched to

the one recommended by the vehicle manufacturer when the driver intends to check the Visual

Object positions D and E in a lump.

(3) The photo of the display image captured shall be checked and for each of the Visual Objects D

and E, "○" or "×" shall be entered in the "Display Area" column of the Appendix 2 as described

below:

Visual Object is shown in both height and circumferential directions for 20cm or more: ○

Anything other than the above: X

Fig. 3: Visual Object Installation Positions for Adjacent Field of Vision Measurement

6.5.3 Distant Field of Vision Test

(1) The Visual Object for the distant field of vision test shall be placed in three positions F through H of Figure

4. Further, supplements are provided below:

F) Position where the center of the bottom of the Visual Object is 3.5m posterior to the Vehicle

Rear Edge Line and on the Vehicle Center Line

G) Position where the center of the bottom of the Visual Object is 3.5m posterior to the Vehicle

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Rear Edge Line and on the Vehicle Right Edge Line

H) Position where the center of the bottom of the Visual Object is 3.5m posterior to the Vehicle

Rear Edge Line and on the Vehicle Left Edge Line

(2) On the System’s display image, the Visual Objects shall be adjusted to the directions where

markings can be checked easily, and the display image shall be shot by the recording camera.

Furthermore, for equipment that can switch display images, the display image shall be switched to

the one recommended by the vehicle manufacturer when the driver intends to check the Visual

Object positions F through H in a lump.

(3) Photos of the display images captured shall be checked and for each of the Visual Objects F

through H, "○" or "×" shall be entered in the "Display Area" column of the Appendix 2 as described

below:

When the entire silhouette of the Visual Object is shown: ○

Anything other than the above: X

(4) Measurement jigs for angle of vision shall be placed at the Standard Eye Point of hanger bar on

the HP Mannequin.

(5) For each of the Visual Object markings of F through H, the width of the uppermost section on the

information display image shall be measured as the size (vision angle (unit: minute of arc)) seen

from the HP Mannequin Standard Eye Point that is closer to the information display unit. Depending

on the size of the vision angle measured, "○", "△" or "X" shall be entered in the “Display Size”

Column of Appendix 2 as described below: accurate measurement of the HP Mannequin Standard

Eye Point position may be conducted using the 3D measurement equipment (see "Supplementary

Provisions") upon consultation with NASVA and manufactures, if it is necessary.

Vision angle is 5.0’ or more: ○

Vision angle is less than 5.0’ / 3.0’ or more: △

Vision angle is less than 3.0’: X

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Fig. 4: Visual Object Installation Positions for Distant Field of Vision Measurement

Supplementary Provisions:

１．Accurate Measurement of Standard Eye Point Positions using 3D Measurement Equipment

The HP Mannequin Reference Eye Point positions shall be measured using 3D measurement

equipment to verify that the measurement results are within 50mm of the standard design eye point

positions. When the error is not within 50mm, NASVA and the vehicle manufacturer shall determine

how these results are handled. However, when the HP Mannequin is reinstalled and the error does

not fall within 50mm after two reinstallations, precision measurement of the angle of vision shall be

conducted under that condition. Furthermore , when the document of 3.1 (2) (passenger seat

coordinate points that will be the basis for vehicle coordinate points (xyz) or driver's standard eye

point (xyz)) is not submitted, a consistency check between the standard design eye point positions

and the Reference Eye Point positions shall not be performed.

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Attachment 1

STANDARD EYE POINT CENTER CORRECTIONS

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Attachment 2

SEAT ADJUSTMENT POSITIONS

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APPENDIX 1: REAR VIEW MONITOR SYSTEM PERFORMANCE TEST CONDITIONS AND TEST

VEHICLE SPECIFICATIONS

[To be filled in by the vehicle manufacturer]

1. Test Vehicle Specifications

(1) Model/Type:

(2) VIN:

(3) Vehicle width: mm (Maximum vehicle width in posterior to exterior rearview mirror: mm)

2. Designation of Test Conditions

(1) Test Vehicle Main Information Display Unit:

Car Navigation Monitor / Interior Rearview Mirror / Instrument Panel / Other( )

(2) Information Display Switch Function:

Yes / No (Separately submit the "Document on Designation of Method of Recommended Display for Each

Visual Object Position")

(3) Ground Height Adjustable Suspension System:

Yes / No (Separately submit the "Document on Designation of Method of Adjustment to the Ground Height

Design Reference Value")

(4) Seat Positions:

"Driver's Seat"

① Seat position forward-

backward adjustment

(3.2.(2)①) (middle position)

Adjustment from forefront *1 mm（ th notch）

③ Seatback angle adjustment (3.2.(2)③)(design standard position)

Adjustment from forefront *1 °（ th notch）

Back angle from vertical line (torso angle)

°（ th notch）

⑤Other adjustment functions that could influence the test *2 (3.2.(2)⑤)(design standard position)

Adjustment mechanism and adjustment method *1

Ex: Forwards-backwards/up-down/angle adjusting devices (20mm from the lowermost point on the reclining

rotation center)

*1: For the adjustment position notches, the first locking position shall be the 0th notch.

*2：Refer to Attachment 2, “Other Adjustment Functions” shall be entered in (5) for “Other Adjustment

Seat Position Driver's Seat

Adjusted Standard Adjustment Method

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Functions” except 3.2. (2) ○1~○4 and installation positions shall be indicated in the following diagram.

"1st row, 2nd row, 3rd row"

Seat Position

1st row

(Passenger

Seat)

2nd row 3rd row

Adjusted Standard Adjustment Method

① Seat position forward-backward adjustment (3.2.(2)①)(design standard position)

Adjustment from forefront *1 Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

② Seat position up-down adjustment (3.2.(2)②) (design standard position)

Adjustment from the lowest position *1

Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

③ Seatback angle adjustment (3.2.(2)③) (design standard position)

Adjustment from maximum forward tilt*1

°

（ th notch）

°

（ th notch）

°

（ th notch）

④ Headrest height adjustment (3.2.(2)④) (design standard position)

Adjustment from top position *1 Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

⑤ Other adjustment functions that could affect the test*2

(3.2.(2)⑤) (design standard position)

Adjustment mechanisms and adjustment methods *1

Ex: Forwards-

backwards/up-

down/angle adjusting

devices

(20mm from the

lowermost point on

the reclining rotation

center)

*1： For the adjustment position notches, the first locking position shall be the 0th notch.

*2：Refer to Attachment 2, “Other Adjustment Functions” shall be entered in (5) for “Other Adjustment

Functions” except 3.2. (2) ○1~○4 and installation positions shall be indicated in the following diagram。

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3．Special Notes

NA / Yes（Attached?: Yes / No ）

When precise measurements are possible, include the measured standard eye point (passenger seat

coordinate points that will be the basis for vehicle coordinate points (xyz) or driver's standard eye point (xyz)).

①

③

④

②

①～④Adjustment Functions

⑤ Examples of other functions that could affect the test

(furthest back)

(furthest back)

(furthest back)

(max angle)

(max angle)

(furthest back) (furthest back)

Shoulder Support

Side Support

Pelvic Support

Butterfly Headrest

Lumbar Support

Cushion Length Ottoman

Headrest Angle

(furthest back)

Front-back/up-down adjustments

(20mm from the lowermost reclining point）

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APPENDIX 2: REAR VIEW MONITOR SYSTEM PERFORMANCE TEST RESULT

[To be filled by the testing institute]

Test Date (mm/dd/yyyy): Test Location: Overseer:

1. Test Vehicle Specifications and Conditions

(1) Model/Type:

(2) VIN:

(3) Tires Installed during testing

Front Rear

Size

Air Pressure (kpa)

(4) Mass at vehicle delivery

Front Rear Total

Mass at vehicle delivery

（1daN）

Note: Record with 1daN=1kgf

(5) Rear view cameras

Number of cameras ( ), position ( )

2．Test Conditions

(1) Distance from Vehicle Center Line to Vehicle Right Edge Line and Vehicle Left Edge Line:

Center Line- Right Edge Line Distance: mm Center Line- Left Edge Line Distance:

mm

(2) Information Display Unit Test Method:

Car Navigation Monitor/ Interior Rearview Mirror / Instrument Panel

/Other( )

(3) Ground Height Adjustable Suspension System Installed or Not and Setup Conditions:

Yes / No (adjustment value: )

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(4) Seat Position:

① Seat position forward-

backward adjustment

(3.2.(2)①) (middle position)

Adjustment from forefront *1 mm（ th notch）

③ Seatback angle adjustment (3.2.(2)③)(design standard position)

Adjustment from forefront *1 °（ th notch）

Back angle from vertical line (torso angle)

°（ th notch）

⑤Other adjustment functions that could influence the test *2 (3.2.(2)⑤)(design standard position)

Adjustment mechanism and adjustment method *1

Ex: Forwards-backwards/up-down/angle adjusting devices (20mm from the lowermost point on the reclining

rotation center)

*1: For the adjustment position notches, the first locking position shall be the 0th notch.

*2：Refer to Attachment 2, “Other Adjustment Functions” shall be entered in (5) for “Other Adjustment

Functions” except 3.2. (2) ○1~○4 and installation positions shall be indicated in the following diagram.

"1st row, 2nd row, 3rd row"

Seat Position

1st row

(Passenger

Seat)

2nd row 3rd row

Adjusted Standard Adjustment Method

① Seat position forward-backward adjustment (3.2.(2)①)(design standard position)

Adjustment from forefront *1 Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

② Seat position up-down adjustment (3.2.(2)②) (design standard position)

Adjustment from the lowest position *1

Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

③ Seatback angle adjustment (3.2.(2)③) (design standard position)

Adjustment from maximum forward tilt *1

°

（ th notch）

°

（ th notch）

°

（ th notch）

④ Headrest height adjustment (3.2.(2)④) (design standard position)

Adjustment from top position *1 Mm

( th notch)

Mm

( th notch)

Mm

( th notch)

Seat Position Driver's Seat

Adjusted Standard Adjustment Method

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⑤ Other adjustment functions that could affect the test*2

(3.2.(2)⑤) (design standard position)

Adjustment mechanisms and adjustment methods *1

Ex: Forwards-

backwards/up-

down/angle adjusting

devices

(20mm from the

lowermost point on

the reclining rotation

center)

*1： For the adjustment position notches, the first locking position shall be the 0th notch.

*2：Refer to Attachment 2, “Other Adjustment Functions” shall be entered in (5) for “Other Adjustment

Functions” except 3.2. (2) ○1~○4 and installation positions shall be indicated in the following diagram。

①

③

④

②

①～④Adjustment Functions

⑤ Examples of other functions that could affect the test

(furthest back)

(furthest back)

(furthest back)

(max angle)

(max angle)

(furthest back) (furthest back)

Shoulder Support

Side Support

Pelvic Support

Butterfly Headrest

Lumbar Support

Cushion Length Ottoman

Headrest Angle

(furthest back)

Front-back/up-down adjustments

(20mm from the lowermost reclining point）

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3. Test Results

Test Visual Object Position Information Display Method Display Area Display Size

Proximity Field

of Vision

A

B

C

Adjacent Field

of Vision

D

E

Distant Field of

Vision

F

G

H

[Remarks] Images of information display in each test area, images of mounted cameras/monitors of the test vehicle, etc.