Page 626 - The Central Motor Vehicles Rules, 1989

598 THE CENTRAL MOTOR VEHICLE RULES, 1989 ANNEXURE IV-B

B. For all other vehicles including diesel 2, 3 and 4 Wheelers:
Cold Start Procedures:
Soak Temperature 20˚–30˚C
Soak Period 6.30 hrs
Preparatory running before sampling Idling of 40 seconds.

Number of test cycles* 4 cycles of Part one and 1 cycle of Part two
Break down of cycles* Modified Indian Driving Cycle as per Tables I and II.
* For diesel 2 & 3 wheelers
Number of test cycles—6
Breakdown of cycles—Indian Driving Cycles as per Annexure II to principal rules.
MODIFIED INDIAN DRIVING CYCLE FOR YEAR 2000
Table—I : Operating cycle on the Chassis Dynamometer (Part one)
No. of Operation Phase Acce-ler Speed Duration of each Cumu-l Gear to be used in
ope-rat ation (Km/h) Ope-ration Phase(s) ative the case of manual
2
ion (m/s ) time(s) gear box
(s)
1. Idling 1 11 11 11 6sPM+5sK1(*)
2. Acceleration 2 1.04 0.15 4 4 15 1
3. Steady Speed 3 15 8 8 23 1
4. Deceleration 4 -0.69 15-10 2 5 25 1
5. Deceleration, 4 -0.92 10-0 3 5 28 K1(*)
Clutch
disengaged
6. Idling 5 21 21 49 16sPM+SsK1(*)
7. Acceleration 6 0.83 0.15 5 12 54 1
8. Gear Change 6 2 2 12 56
9. Acceleration 6 0.94 15-32 5 12 61 2
10. Steady Speed 7 32 24 24 85 2
11. Deceleration 8 -0.75 32-10 8 11 93 2
12. Deceleration, 8 -0.92 10-0 3 11 96 K2(*)
Clutch
disengaged
13. Idling 9 21 21 117 16sPM+5sK1(*)
14. Acceleration 10 0.83 0-15 5 26 122 1
15. Gear Change 10 2 26 124
16. Acceleration 10 0.62 15-35 9 26 133 2
17. Gear Change 10 2 26 135
18. Acceleration 10 -0.52 35-50 8 26 143 3