Federal Register - September 3, 2021
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Fuente: Federal Register
49866
Federal Register / Vol. 86, No. 169 / Friday, September 3, 2021 / Proposed Rules
Figure 1 to Paragraph a
=-
Required_Fuel_Economy_Level
N
Lil according to the following formula, rounded to the nearest hundredth:
Where:
N is the total number sum of light trucks produced by a manufacturer;
Ni is the number sum of the ith light truck model type produced by a manufacturer;
and Ti is the fuel economy target of the ith light truck model type, which is determined
T
Where:
Parameters a, b, c, and d are defined in Table 5 to this paragraph a;
e = 2.718; and x = footprint in square feet, rounded to the nearest tenth of the model type.
1
= _1__1__1___e_x---c_d_
a+ ba 1 + ex-cd
Table 5 to Paragraph a-Parameters for the Light Truck Fuel Economy Targets for MYs 2008-2011
Model year
a mpg
b mpg
c gal/mi/ft2
d gal/mi
2008
28.56
19.99
49.30
5.58
2009
30.07
20.87
48.00
5.81
2010
29.96
21.20
48.49
5.50
2011
27.10
21.10
56.41
4.28
Where:
CAFErequired is the fleet average fuel economy standard for a given light truck fleet;
Subscript i is a designation of multiple groups of light trucks, where each
EP03SE21.243
Li PRODUCTJONi PRODUCTION
Li TARGET,,l l
Figure 3 to Paragraph a
lotter on DSK11XQN23PROD with PROPOSALS2
TARGET=
l
MINFcxF001PRINT+d, Where:
TARGET is the fuel economy target in mpg applicable to vehicles of a given footprint FOOTPRINT, in square feet;
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Parameters a, b, c, and d are defined in Table 6 to this paragraph a; and
PO 00000
Frm 00266
Fmt 4701
Sfmt 4702
:
The MIN and MAX functions take the minimum and maximum, respectively, of the included values.
E:FRFM03SEP2.SGM
03SEP2
EP03SE21.242
=
footprint of light trucks within each ith designation, i.e., which share the same model type and footprint, calculated according to either Figure 3 or Figure 4
to this paragraph a, as appropriate, and rounded to the nearest hundredth of a mpg, i.e., 35.455 = 35.46 mpg, and the summations in the numerator and denominator are both performed over all models in the fleet in question.
EP03SE21.241
CAFErequired
groups designation, i.e., i = 1, 2, 3, etc., represents light trucks that share a unique model type and footprint within the applicable fleet;
Productioni is the number of light trucks produced for sale in the United States within each ith designation, i.e., which share the same model type and footprint;
and TARGETi is the fuel economy target in miles per gallon mpg applicable to the
EP03SE21.240
Figure 2 to Paragraph a
EP03SE21.244
Parameters
