Page 625 - The Central Motor Vehicles Rules, 1989

ANNEXURE IV-B THE CENTRAL MOTOR VEHICLES RULES, 1989 597

ANNEXURE IV-A
[Refer Rule 115(5)] ANNEXURE IV-A
TEST CYCLE
The following 13-mode cycle shall be followed in dynamometer operation on the
test engine:—
Mode No. Engine speed % Load
(1) (2) (3)
1. Idle —
2. Intermediate 10
3. Intermediate 25
4. Intermediate 50
5. Intermediate 75
6. Intermediate 100
7. Idle —
8. Rated 100
9. Rated 75
10. Rated 50

11. Rated 25
12. Rated 10
13. Idle —
1
[ANNEXURE IV-B
DRIVING CYCLES AND COLD START ANNEXURE IV-B
[Refer Rule 115(10)]
A. For all 2 and 3 Wheelers except diesel vehicles:
Cold Start Procedures:

Test Cell Condition
Soak Temperature 20˚–30˚C
Soak Period 6.30 hrs
Preparatory running before sampling Idling of 40 seconds and 4 cycles
Number of test cycles 6

Break down of cycles Indian Driving Cycle as per Annexure II to
principal rules.

1 Inserted vide GSR 493(E), dt. 28-8-1997, w.e.f. 1-4-2000.