Page 213 - The Central Motor Vehicles Rules, 1989

RULE 115 THE CENTRAL MOTOR VEHICLES RULES, 1989 185

Definition of class Cycles Weighting factors for
final emission results
Class 1 Vehicles that fulfill the Part 1 Reduced Part 1 Reduced Speed
following specifications Speed cold followed cold shall be 50% and
belong to class 1: by Part 1 Reduced Part 1 Reduced Speed
3
50 cm < engine capacity < Speed Hot Hot shall be 50%
3
150 cm and
Vmax < 50 km/h
or
3
engine capacity < 150 cm
and 50 km/h < Vmax < 100
km/h
Sub-Class 2.1 Vehicles that fulfill the Part 1 Reduced Part 1 Reduced Speed
following specifications Speed cold followed cold shall be 50%
belong to class 2-1: by and
3
Engine capacity < 150 cm Part 1 Reduced Part 1 Reduced Speed
and 100 km/h < Vmax < 115 Speed Hot Hot shall be 50%
km/h
or
3
Engine capacity > 150 cm
and Vmax < 115 km/h
Sub-Class 2.2 Vehicles that fulfill the Part 1 cold followed Part 1 cold shall be
following specifications by 30%
belong to class 2-2:
115 km/h < Vmax < 130 Part 2 Hot Part 2 hot shall be 70%
km/h
Sub-Class 3-1 Vehicles that fulfill the Part 1 cold followed Part 1 cold shall be
following specifications by 25%
belong to class 3-1:
130 km/h < Vmax < 140 Part 2 Hot followed Part 2 Hot shall be
km/h by 50% and

Part 3 reduced Part 3 reduced shall
speed be 25%
Sub-Class 3-2 Vehicles that fulfill the Part 1 cold followed Part 1 cold shall be
following specifications by 25%
belong to class 3-2:
Vmax > 140 km/h Part 2 Hot followed Part 2 Hot shall be
by 50% and

Part 3 Part 3 shall be 25%

2. The test procedure and driving cycles shall be as per United Nations
Economic Commission for Europe (UNECE) Global Technical
Regulation (GTR)-2 incorporating Amendment 2, with
preconditioning soaking and cold start on chassis dynamometer as
specified above.