Regulation No. 83-06 Proposed Supplement 7

Name:Regulation No. 83-06 Proposed Supplement 7
Description:Emissions - Light Duty Vehicles. Proposed Supplement 7 to the 06 Series.
Official Title:Proposal for Supplement 7 to the 06 Series of Amendments to Regulation No. 83 (Emissions of M1 and N1 Vehicles).
Country:ECE - United Nations
Date of Issue:2016-04-08
Amendment Level:Original
Number of Pages:5
Information:Provisional Date of Entry into Force: February 9, 2017
Vehicle Types:Bus, Car, Heavy Truck, Light Truck
Subject Categories:Drafts and Proposals (Historical)
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Keywords:

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Text Extract:

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ECE/TRANS/WP.29/2016/42
PROPOSAL FOR SUPPLEMENT 7 TO THE 06 SERIES OF
AMENDMENTS TO
REGULATION NO. 83
(EMISSIONS OF M 1 AND N 1 VEHICLES)
ADOPTED AT THE 169 SESSION – JUNE 2016
PROVISIONAL DATE OF ENTRY INTO FORCE: FEBRUARY 9, 2017

5.1.1.2.5. These measurements shall be carried out in opposite directions until, for each reference
speed v , a minimum of three consecutive pairs of measurements have been obtained
which satisfy the statistical accuracy p , in per cent, as defined below.
pj =
t⋅s
n
100
⋅ ≤ 3%
ΔT
where:
p is the statistical accuracy of the measurements performed at reference speed v ;
n
∆T
is the number of pairs of measurements;
is the mean coast down time at reference speed v in seconds, given by the
equation:
ΔT
1
= ∑
n
ΔT
where ∆T is the harmonic mean coast down time of the i pair of measurements
at velocity v , seconds [s], given by the equation:
ΔT
=

⎜ 1


ΔT
2
⎞ ⎛

+
⎜ 1
⎟ ⎜
⎠ ⎝
ΔT




where ∆T and ∆T are the coast down times of the i measurement at reference
speed v , in seconds [s], in opposite directions a and b, respectively;
s
is the standard deviation, in seconds [s], defined by:
s
( ΔT
− Δ )
1
= ∑
T
n − 1
t
is a coefficient given in the following table:
Coefficient t as function of n

5.1.1.2.9. For each reference speed v calculate the power (P ), [kW], by the formula:
where:
P =(F · v )/1,000
F
is the average resistance at reference speed, j, [N];
v is the reference speed, j, [m/s], defined in 5.1.1.2.3.
5.1.1.2.10. The complete power curve (P), [kW], as a function of speed, [km/h], shall be calculated
with a least squares regression analysis."
Paragraph 5.1.1.2.8. (former), renumber as Paragraph 5.1.1.2.11.
Paragraphs 5.1.2.2.5. to 5.1.2.2.7., amend to read:
"5.1.2.2.5. Carry out the operations specified in Paragraph 5.1.1.2. of this Appendix (with the
exception of Paragraph 5.1.1.2.4. of this Appendix), replacing M by I in the formula set
out in Paragraph 5.1.1.2.7. of this Appendix.
5.1.2.2.6. Adjust the brake to reproduce the corrected power (Paragraph 5.1.1.2.11. of this
Appendix) and to take into account the difference between the vehicle mass (M) on the
track and the equivalent inertia test mass (I) to be used. This may be done by calculating
the mean corrected road coast down time from V to V and reproducing the same time
on the dynamometer by the following relationship:
T
T
=
K
I

M
K = value specified in Paragraph 5.1.1.2.11. above.
5.1.2.2.7. The power P to be absorbed by the dynamometer shall be determined in order to
enable the same power (Paragraph 5.1.1.2.11. of this Appendix) to be reproduced for the
same vehicle on different days."
Paragraph 5.2.1.2.7., amend to read:
"5.2.1.2.7. The average torque C determined on the track shall be corrected to the reference
ambient conditions as follows:
C = K · C
Where K has the value specified in Paragraph 5.1.1.2.11. of this Appendix."
Emissions - Light Duty Vehicles. Proposed Supplement 7 to the 06 Series.