इ टरन ट म नक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' तरफ Jawaharlal Nehru Step Out From the Old to the New IS 136-2 (1996): Automotive vehicles - Passenger cars verification of drivers direct field of view (Part 2) Method of test [TED : Automotive Braking Systems]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen
IS 136 (Part 2) : 1996 Indian Standard AUTOMOTIVE VEHICLES - PASSENGER CARS - VERIFICATON OF DRIVER S DIRECT FIELD OF VIEW PART 2 METHOD OF TEST ICS 3.100 @BIS 1996 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR harg NEW DELHI 110002 July 1996 Price Group 6
Automotive Vehicles Testing and Performance Evaluation Sectional Committee, TED 8 FOREWORD This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Automotive Vehicles Testing and Performance Evaluation Sectional Committee had been approved by the Transport Engineering Division Council. This standard is in entire agreement with IS0 39-Z : 1993 Passenger cars - Verification of driver s direct field of view: Part 2 Test method. Reference has also been made to EEC directive /69 Field of vision of motor vehicle drivers. NOTE - Part 1 of the standard specifies the vehicle positioning for static measurement as the stage prior to carrying out this test method. The Committee responsible for the preparation of this standard is given in Annex B In reporting the result of a test or analysis made in accordance with this standard, if the final value, observed or calculated, is to be rounded off, it shall be donein accordance with IS 2 : 1960 Rules for rounding off numerical values (revised).
Indian Standard AUTOMOTIVE VEHICLES - PASSENGER CARS - VERIFICATION OF DRIVER S DIRECT FIELD OF VIEW - PART 2 METHOD OF TEST 1 SCOPE This standard prescribes the method of test for verifying the compliance of a passenger car for the driver s 180 forward field of view. It does not preclude the use of other methods, provided that the validity of the results obtained may be proved and that due account is taken of the accuracy of the method employed. 2 REFERENCES 2.1 The following Indian Standards are necessary adjuncts to this standard. IS No, Title 93 : 1980 Terms and definitions relating to dimensions of road vehicles 139 : 1993 Automotive vehicles - Determination of H-point - Method of test 136 Automotive vehicles - Pas- (Part 1) : 1996 senger cars - Verification of driver s direct field of view: Part 1 Vehicle positioning for static measurement 3 TERMINOLOGY For the purpose of this standrad the following definitions shall apply. 3.1 A-pillar (Vehicle) Roof support forward of the R -point which include all non-transparent items such as windscreen mouldings and door window frames, attached to or contiguous with such support. 3.2 Direct Field of View View capable of being seen by the driver without the aid of mirrors. 3.3 Eye Points (E Points) Specific points on the left and right eyellipse contours positioned in the same relative position on each ellipse. 3. Eyellipse Contraction of the words eye and ellipse, describing the elliptical shape of the driver s eye range. NOTES 1 The term eyellipse shall be used solely in this application. 2 Eyellipse is synonymous with driver s eye range. 3. Eyellipse Template Two-dimensional design tool consisting of a plan view and a side view of the driver s left and right eye ranges from which sight lines may be constructed for the purpose of describing the location of objects in the field of view of the seated driver. 3.6 Field of View Solid angle subtended by sight planes emanating from tangents on the eyellipse contours or fromthe appropriate vision origin point. 3. H-point Pivot centre of the torso and thigh on the threedimensional H-point machine used for actual H- point determination. It is located on the centreline of the device which is between the H-point sight buttons on either side of the H-point machine (see IS 139 : 1993). 3.8 Design H-point ; R-point ; Seating Reference Point Point which: b) c> establishes the rearmost normal driving or riding position of each designate seating position as stipulated by the manufacturer and which accounts for all modes of adjustment (horizontal, vertical and tilt) that are avilable for the seat; has coordinates established with respect to the designed vehicle structure; simulates the position of the pivot centre of the human torso and thigh; and 1
d) is the reference point employed to position a two-dimensional template. 3.9 Neck Pivot Point (P-point) Specific point about which the driver s head turns on a horizontal plane. The point is about 98.8 mm to the rear of the mid-point between the eye points. It when combined with the eye points, is used in lieu of the complete eyellipse contour. 3.10 Design Back Angle Angle measured between a true vertical line through the R-point (seating reference point ) and the torso line of a two-dimensional template. 3.11 Vision Origin Points Vision points (V points ) and eye points (E points), which rotate around the neck pivot point (P-point). 3.12 Vision Point (V-point) Specific point on a sight plane, used instead of the complete eyellipse contour in specifying direct field of view requirements and in checking vehicle compliance with these requirements. 3.13 Fiducial Marks Definition shall be as per 3.1 of IS 136 (Part 1) : 1996 (see Fig. 1). VEHICLE POSITIONING..1 The vehicle shall be positioned in accordance with the procedure given in IS 136 (Part 1) : 1996..2 The vehicle condition shall be achieved by setting up the vehicle using the fiducial marks indicated by the vehicle manufacturer for that loading condition, taking account of any special characteristics of the vehicle suspension. VERIFICATION OF VEHICLE.1 Test Equipment 1.1 Device for Projection of Beams In any desired direction, for instance towards the windscreen datum points, which may be mounted relative to the three-dimensional system of the vehicle on the head of a three-dimensional measuring and marking-out machine..1.2 Device for projection of Obstruction Angles This may be mounted on the head of a three-dimensional measuring machine and may be pivoted around the P-point. NOTE - The devices described in.1.1 and.1.2 may bea laser measuring device conforming to Annex A. 1.3 Transparent Overlay Transparent.2 Test Procedure overlay to cover the windscreen. 3.1 After positioning thevehicle on the measuring base plate (see Fig. 2) corresponding to the VERTICAL TRANSVERSE PLANE VERTICAL MEDIAN LONGITUDINAL PLANE FIG. 1 THREE DIMENSIONAL REFERENCE GRID 2
ISl36(Part2):1996 coordinates of the measuring system by use of jacks, the springs are relieved and the vehicle R-point set to zero on the machine. Mount the beam projection device onto the head of the measuring machine, level it and calibrate its X and Y axis..2.2 Adjust the position of the projection device so that the origin of the beam comes out of Vt (see Table 1 and Table ). 2.3 Cover the windscreen with the overlay and adjust the desired angles either 1 forward and outwards from Vl or forward and upward from Vt and mark these points on the overlay (see Fig. 3)..2. Adjust the position of the projection device so that the origin of the beam comes out of V2 (see Table l), adjust the angle of forward and downwards from V2 and mark this point on the overlay (see Fig. 3). 2. Verify by measurement that three additional datum points are obtainable symmetrical to the points determined in.2.3 and.2. in relation to the median longitudinal plane of the vehicle..2.6 Adjust the projection device so that the origin of the beam comes out of Pm (see Table 2 and Table 3) with an angle of 2 forward and up- FIDUCIM MARKS twsmoffed DN GROUND wards, and determine the intersection of the 2 plane with the most forward point of the A-pillar. This intersection point defines the Z-coordinate of St (see Fig. ). Repeat this procedure with an angle of forward and downwards to get the Z-coordinate of the lower horizontal intersection S2 of the A-pillar (see Fig. )..2. Install the device for ascertaining obscuration on to the projection device and position the origin of the beam coming out horizontally from PI with the Z-coordinate of S2. Rotate the theodolite around Pt so that the beam out of El (see Fig. ) meets the A-pillar at its left side. Fix this theodolite position and change only the Z-coordinate to that of St. Rotate the micrometer screw to meet the A-pillar at its right side. The micrometer gives the construction angle of this A-pillar (in degrees)..2.8 Repeat this measurement out of the position of P2 with a_symmetrical device..2.9 Position the projection device as in.2.2 and rotate a horizontal beam. 2.10 Verily that no obscuration is apparent except that caused by A-pillars, vent window division bars,~rear view mirrors, windscreen wipers and radio aerials. w ON GROUND Of WDIAN mu pturt of VEHICLE TRACE ON GROUND X COORDINATE SCALE FIG. 2 MEASURING BASE PLATE 3
; 1 ;a A = 68mm 1) B = mm Y = C = 89mm 2) D= 66 mm 3) Line Tracing the Median Longitudinal Plane of the Vehide, Line Tracing the Vertical Plane Passing Through R Line Tracing the vertical Plane Through ti and Vz FIG. 3 DETERMINATION OF V-POINTS.2.11 Position the projection device as in 2. and adjust it to an angle downward; rotate the device by its vertical axis through the l&y fotward range. 2.12 Ensure no obstruction is apparent as in.2.10. Whenanyobstructionisobserved,checkthe direction of the tangent beam in the following manner. The tangent angle of incidence a or a' which may pass through glared areas shall be at least: i) Inthe driving direction: (0 = 00) : a > ii) In the transverse direction: (10 1 = W): a 2 iii) For CP< 161 <S0:a 2 arc tan (cos 101 x tan ) iv) For 101 < 90 a = arc tan {c0qlel - 2 x (lej - )] x tan ).3 Laser Measuring Device (bdditional Test Procedure).3.1 Install the laser theodolite in accordance with the operating instructions of the producer and ensure that the radiation of the low-power beam source may not hit the operator s eyes..3.2 Check calibration by observing the laser spot on a screen by running the machine along the X axisthe parallel to the X axis and the theodolite is levelled exactly. I Table 1 V-points - Basic Coordinates Design Seat-torso Angle of 2 (Clauses.2.2 and.2.) Dimensions in millimetres. V-Point for a coordhla~ X Y z I Vl 68-6 c. v2 68-89 NOTES 1 The positions of the V-points of relation tothe R-point, as indicated by X, Y and Z coordinates from the threedimensional reference grid (see Fig. 1 ) are as shown in Table 1 and. 2 The positive direction for the coordinates is indicated in Fig. 3. Table 2 P-points - Basic Coordinates Design Seat-torso Angle of 2 (Clause.2.6) Dimensions in millimetres. for a NOTE-The positive direction for the coordinates is indicated in fig. 3.
Table 3 Corrections to be Made tox Coordinates of P1 and P2 when Horizontal Seat-Adjustment Range Exceeds 108 mm (Clause 2.6 and Table 2) Dimensions in millimetres. Horizontal Seat-adjustment Range Ax 108 to 120 121 to 132 133 to 1 16 to 18 > 168 NOTE-The positive direction for the coordinates is indicated in Fig. 3. -13-22 -32-2 -8 R-POINT p- i I FIG. OBSTRUCTION CAUSED BY A-PILLAR
Table Correction to be Made to X and Z Coordinates of each P-point and each V-point when Design Seat-Back Angle is not 2 (Clause.2.2 and Table 1) Dimensions in millimet.res. Ax mm AZ Seat-Back Angle Ax AZ Degrees mm mm -186 28 23-18 6-1 2 2-9 3-16 2 2 0 0 8-1 2 26 9-3 9-1 26 2 1-10 -13 2 28 26-8 11-128 2 29 3-11 12-118 23 30 3-1 13-109 22 31 1-18 1-99 21 32 9-21 1-90 20 33 6-2 16-81 18 3 6-28 1-2 1 3 8-32 18-62 1 36 92-3 19-3 13 3 100-39 20-11 38 108-3 21-3 9 39 11-8 22-26 0 123-2 NOTE-The positive direction for the coordinates is indicated in Fig. 3. ANGLE OF OBSTRUCTION OF A-WR ON PASSENGER SIDE PARALLELS ANGLE rx=mi OF OBSTRUCTION OF AR ON DRIVER S SIDE PARALLELS FIG. HORIZONTAL INTERSECTION OF A& ILLAR TO ASZERTAIN OBSTRUCIJON ANGLES 6
ANNEX A (Clause.1.2) LASER MEASURING DEVICES A-l TYPE theodolite [see Fig. 6 (a)] or beamsplitter, mounted A laser measuring device consists of either the type described in A-l.1 or A-1.2. on tothelaser device, to obtaine-point [seefig (b)]. A-1.1 A laser device pivoting about a fixed verti- A-l.2 A laser device fitted on a pivoting axis normal cal and horizontal axis typical axis system of a to a fixed horizonal pivoting axis (see Fig. ). t (b) FIG. 6 TYPICAL AXIS SYSTEM OF THEODOLITE ZERO POSITION Of MOVEMENT i ZERO POSlTlON r- Of MOVEUENT I FIG. LAKER DEVICE FITTED ON PIVOTING AXIS NORMAL TO FIXED HORIZONTAL PWOTING~AXI~
A-2 ANGULAR CORRECTIONS A-2.1 The laser positions obtained after pivot the devices in A-l of the same angle values for ti and /3 in the case of A-1.1 and for v and h in the case A-l.2 are not identical. The differences are due: i) in A-l.1 when the laser pivots about the vertical axis (a) of a givenvalue with respect to the horizontal axis @), the laser beam describes a cone with a semi-angle vertex (XB - B). ii) in A-1.2, when the laser pivots about the horizontal axis of a value v, then of a value h as the other axis, the laser beam remains in a plan. A-2.2 When the laser measuring device is not provided with an automatic adjusting system, the angle correction tables (Tables to 1) shall be used. Table Angle Corrections for h Variants from Table 6 Angle Corrections for p Variants from 0 to 30 with v at Inclined Plane 0 to 30 with v at Inclined Plane (Clause A-2.2) (Clause A-2.2) Values in degrees. h a B 0 0 in - - V h a - _ -r 0 0 1 1 2 2 3 3.99 3.01 3.99.01 3.98.01 6 3.98 6.01 3.9.02 8 3.96 8.02 9 3.9 9.02 10 3.9 10.02 11 3.93 11.03 12 3.91 12.03 13 3.9 13.03 1 3.88 1.03 1 3.86 1.03 16 3.8 16.0 1 3.82 1.0 18 3.8 18.0 19 3.8 19.0 20 3.6 20.0 21 3.3 21.0 22 3.1 22.0 23 3.68 23.0 2 3.6 2.0 2 3.62 2.0 26 3.9 26.06 2 3.6 2.06 28 3.3 28.06 29 3. 29.06 30 3.6 30.06 1 2 2.99 3.99 3.99 3.99.99 3.98.99 3.98 6.98 3.9.98 3.96 8.98 3.9 9.98 3.9 10.9 3.93 11.9 3.91 12.9 3.9 13.9 3.88 1.9 3.86 1.% 3.8 16.96 3.82 1.% 3.8 18.% 3.8 19.96 3.6 20.9 3.3 21.9 3.1 22.9 3.68 23.9 3.6 2.9 3.62 2.9 3.9 26.9 3.6 2.9 3.3 28.9 3. 29.9 3.6 ) Limit angular values for inclined planes. 1 2 3 6 8 9 10 11 12 13 1 1 16 1 18 19 20 21 22 23 2 2 26 2 28 29 301) 8
Table Angle Corrections for h Variants from Table 8 Angle Corrections for /3 Variants from 31 to 60 with Y at Inclined Plane 31 to 60 with v at Inclined Plane (Clause A-2.2) (Clause A-2.2) Values in degrees. Values in degrees. V h cl B h a 31 3.3 31.06 30.9 3.3 31 32 3.39 32.06 31.9 3.39 32 33 3.3 33.06 32.9 3.3 33 3 3.32 3.06 33.9 3.32 3 3 3.28 3.0 3.93 3.28 3 36 3.2 36.0 3.93 3.2 36 3 3.19 3.0 36.93 3.19 3 38 3.1 38.0 3.93 3.1 38 39 3.11 39.0 38.93 3.11 39 0 3.06 0.0 39.93 3.06 0 1 3.02 1.0 0.93 3.02 1 2 2.9 2.0 1.93 2.9 2 3 2.92 3.0 2.93 2.92 3 2.88.0 3.93 2.88 2.83.0.93 2.83 6 2.8 6.0.93 2.8 6 2.3.0 6.93 2.13 1 8 2.68 8.0.93 2.68 8 9 2.62 9.0 8.93 2.62 9 0 2. 0.0 9.93 2. 0 1 2.2 1.0 0.93 2.2 1 2 2.6 2.0 1.93 2.6 2 3 2.1 3.0 2.93 2.1 3 2.3.0 3.93 2.3 2.29.0.93 2.29 6 2.2 6.06.9 2.2 6 2.18.06 6.9 2.18 8 2.12 8.06.9 2.12 8 9 2.06 9.06 8.9 2.06 9-60 2 60.06 9.9 2 60 9
Table 9 Angle Corrections for h Variants from Table 10 Angle Corrections for j? Variants from 61 to 90 with Y at Inclined Plane (Clause A-2.2 ) 61 to 90 with Y at Inclined Plane (Clause A-2.2) Values iii degrees. Values in degrees. h a B h (I 61 1.9 61.06 60.9 1.9 61 62 1.88 62.06 61.9 1.88 62 63 1.81 63.06 62.9 1.81 63 6 1. 6.06 63.9 1. 6 6 1.69 6.0 6.9 1.69 6. 66 1.63 66.0 6.9 1.63 66 6 1.6 6.0 66.9 1.6 6 68 1. 68.0 6.9 1. 68 69 1.3 69.0 68.9 1.3 69 0 1.3 0.0 69.96 1.3 0 1 1.3 1.0 0.96 1.3 1 2 1.2 2.0 1.96 1.2 2 3 1.1 3.0 2.96 1.1 3 1.1.0 3.96 1.1 1.03.03.9 1.03 6 0.9 6.03.9 0.9 6 0.9.03 6.9 0.9 8 0.83 8.03.9 0.83 8 9 0.6 9.03 8.9 0.6 9 80 0.69 80.02 9.98 0.69 80 81 0.63 81.02 80.98 0.63 81 82 0.6 82.02 81.98 0.6 82 83 0.9 83.02 82.98 0.9 83 8 0.2 8.01 83.99 0.2 8 8 0.3 8-01 8.99 0.3 8 86 0.28 86.01 8.99 0.28 86 8 0.21 8.01 86.99 0.21 8 88 0.1 88 88 0.1 88 89 0.0 89 89 0.0 89 _ 90 0 90 1) ) Not determined. 90 0 90 10
Table 11 Angle Corrections for h Variants from Table 13 Angle Corrections for h Variants from 0 to 1 with v at Inclined Plane 0 to l with v at Inclined Plane (Clause A-2.2) (Clause A-2.2) Values in degrees. - Values il nd egrees. - V h (x B h a B 0 0 0 1 2 3 6 8 9 10.99.99.98.9.%.9.9.92 0 1 2.01 3.01.02.02 6.02.03 8.03 9.03 10.0 1 2 3 6 8 9 10 11 6.99 6.98 6.9 6.96 6.9 6.93 6.91 6.89 6.8 1.01 2.02 3.02.03.0 6.0.0 8.06 9.0 10.0 11.08 11.91 11.0 12 6.8 12.09 12.89 12.0 13 6.82 13.09 13 1.8.8 13.0 1.0 1 1 6.9 6.6 13. 1.11 1.83 1.0 16 6.3 16.11 16.81 16.06 1 6.69 1.12 li.8 1.06 = = 1 Table 1 Angle Corrections for /3 Variants from Table 12 Angle Corrections for /zl Variants from 0 to 1 with v at Inclined Plane 0 to 1 with v at Inclined Plane (~Clause A-2.2) (Clause A-2.2) Values in degrees. Values in dergees. - V h a B h (I B _ 0 0 0 0 0.99 1 1 1 1.99 2 1.99 2 2.99.99 3 2.98 6.99 3 3.98.99 3.9 6.98.98.98.96 6.9.98.9 6.96 6.96 6 6.9.96 6.9 6.9 F.9.9 8 8.9.9 9 9.96.92 10 10.96.91 11 11.96.89 12 12.9.8 13 13.9.8 1 1.9.83 1 1.9.81 16.9.8 ) Upper external edge of area B. 11.9 6.93 8.93 6.91 9.93 6.89 10.92 6.8 11.91 6.8 12.91 6.82 13.9 6.9 1.89 6.6 1.89 6.3 16.88 6.69 I Lower external edge of area B. 8 9 10 11 12 13 1 1 16 1l) -
ANNEX B ( Foreword ) COMMI ITEE COMPOSITION Automotive Vehicles Performance Evaluation and Testing Sectional Committee, TED 8 c- SHRI K. SRINIVASAN Members SHRI R. R. AKAWE (Alternote to Shri K. Srinivasan ) SHRI K R. WHNAN (Altemae to Shri K Srinivasan ) SHRI H. K ACHARYA SHRI Y. V. NAGARAJ (Alternare) S&l S. c. kinand SHRI S. K GAUTAM (At temae) SHRl T. M. B- SHRI V. hf. MANEL (Alremure) SHRI S. K BHAR~G SHRIP. V. BHANDARE DIRECIOR (ENGINE DEV) DR K K GANDHI SHRI MUKESH S-A (Ahmute) SHRI S. B. GU~A SHRI S. K GULATI SHRI D. GANGOPADHYAYA (Altemute) SHRI K C. JAIN SHFU R. K GUP~A (Alremare) SHRI R. K JAIN SHRI V. R.kJARAM (Alamae) SHRI k K JINDAL SHRI u. K KINI SHRI M. G. JHINGRAN (,-l&mu&) SHRI 2. A. MUJAWAR SHRI P. N. RANGAN (Akmate) SHRI S. K MUKHEWEE SHIU M. V. VENKATIZWARAN SHRI V. M. MUNDADA SHRI S. B. DUGAD (A&mute) PROF M. V. NARASIMHAN SHRI A. G. MARATHE (Al&mute) SHFU RABAT NAND] Stk~ M. NAM SHIU P. kpalara.j u (Alternate) SHRI V. k PA-IlL SHRI S. R. DAS (Almnure) SHRI I. V. RAO SHRI B. S. KAUSIUBAN (AsQemute) SHRI R. C. SEXi SHRI R. RAWRAM (Alternate) SHRI P. K SAHA SHIU P. K SHARMA SHRI S. N. SRINIvASAN SHRI K N. DIGHE (Rltarmtc) SHFU S. R. TAPADE SHRI P. C. BARJA~ (Alternate) SHRI VILAS THORa SHRI A. R. GULATI, Director (TED) Representing Tata Engg and Locomotive Co Ltd, Pune The Enfield India Ltd, Madras Directorate General of Supplies and Disposals, New Delhi Bajaj Auto Ltd, Pune Directorate General of Technical Development, New Delhi Kinetic Engg Ltd, Pune Research, Design and Standards Organization, Lucknow Indian Institute of Petroleum, Dehradun Hero Honda Motors Ltd, New Delhi Directorate of Technical Developement and Production (Air), New Delhi Escorts Ltd, Fatidabad Ministry of Defence (OFB), Calcutta Swaraj Mazda Ltd, Chandigarh Hindustan Motors Ltd, Hooghly Automotive Research Association of India, Pune Mahindra and Mahindra Ltd, Nasik Bajaj Tempo Ltd, Pune Indian Institute of Science, Bangalore Association of Indian Automoblie Manufacturers, Mumbai Ashok Leyland Ltd, Madras Central Farm Machine Training and Testing, Budni (MP) Maruti Udyog Ltd, Gurgaon Vehicle Research and Development Establishment, Ahmednagar Controllerate of Quality Assurance Vehicles, Ahmednagar D CM Toyota Ltd, New Delhi Premier Automobiles Ltd, Mumbai Central Institute of Road Transport, Pune Association of State Road Transport Undertaking, New Delhi Director General, BIS @t-officio Member) sarctaty SHRI T. M. MAWMDAR Director (TED), BIS 12
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