|
||||||
|---|---|---|---|---|---|---|
| Home | 29 CFR | 40 CFR | 49 CFR | Federal Register | MSDS Search | Purchase CFR e-Books |
Suppose that a manufacturer called Mizer Motors has a product line composed
of eight car lines. Of these eight, four are available with the 300 CID, 2
barrel, non-catalyst, 49-state engine. These four car lines are: A car line is defined in subpart A as a group of vehicles within a make or
division which has a degree of commonality in construction. Car line does not
consider any level of decor or opulence and is not generally distinguished by
such characteristics as roofline, number of doors, seats, or windows. Station
wagons and light duty trucks are, however, identified separately from the
remainder of each car line. In other words, a Castor station wagon would be
considered a different car line than the normal Castor car line made up of
sedans, coupes, etc.
The engine considered here is defined as a basic engine in subpart A of this
part. A basic engine is a unique combination of fuel system, number of
cylinders, catalyst usage, and engine displacement.
A model type is a unique combination of car line, basic engine, and
transmission class. Thus Ajax is a car line but Ajax 300-2V noncatalyst,
49-state, manual transmission is a model type whereas Ajax 300-2V non-catalyst,
49-state, automatic transmission is a different model type.
The following calculations provide an example of the procedures described in
subpart C of this part for the calculation of vehicle configuration and model
type fuel economy values. In order to simplify the presentation, only city fuel
economy values are included. The procedure is identical for highway and combined
fuel economy values. Manufacturer -- Mizer Motors.
Basic Engine: (300-2 barrel, 8-cylinder, non-catalyst, 49 state). A. For all the base levels except the base level which includes 4,000 pound,
manual transmission data, the base level fuel economy is as noted in Step II
since only one vehicle configuration was tested within each of these base
levels. B. Since data from more than one vehicle configuration are included in the
4,000-pound, manual transmission base level, this fuel economy is harmonically
averaged in proportion to the percentage of total sales of all vehicle
configurations tested within that base level represented by each vehicle
configuration tested within that base level.
--------------------------------------------------------------------------------------------------------------------------------------------------------
Label
Engine Inertia Axle Average miles per Vehicle
Test vehicle carline code Transmission weight ratio miles per gallon configuration
gallon \1\ sales
--------------------------------------------------------------------------------------------------------------------------------------------------------
Ajax............................................................... 1 M-3 3,500 2.73 16.1001 16 15,000
Do............................................................. 2 A-3 3,500 2.56 15.9020 16 35,000
Boredom III........................................................ 4 M-3 4,000 3.08 14.2343 14 10,000
Ajax............................................................... 3 M-4 4,000 3.36 15.0000 15 15,000
Boredom III........................................................ 8 A-3 4,000 2.56 13.8138 14 25,000
Do............................................................. 5 A-3 4,500 3.08 13.2203 13 20,000
Castor............................................................. 5 A-3 5,000 3.08 10.6006 11 40,000
--------------------------------------------------------------------------------------------------------------------------------------------------------
\1\ The vehicle configuration fuel economy values, rounded to the nearest mile per gallon, are the fuel economy values that would be used on specific
labels for that vehicle configuration.
----------------------------------------------------------------------------------------------------------------
Projected
Inertia Miles per vehicle
Transmission weight gallon configuration
sales
----------------------------------------------------------------------------------------------------------------
Base level:
A...................................... Manual-3................... 3,500 16.1001 15,000
B...................................... Automatic.................. 3,500 15.9020 35,000
C...................................... Manual-3................... 4,000 14.2343 10,000
C...................................... Manual-4................... 4,000 15.0000 15,000
D...................................... Automatic.................. 4,000 13.8138 25,000
E...................................... ......do................... 4,500 13.2203 20,000
F...................................... ......do................... 5,000 10.6006 40,000
----------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------
Miles per
gallon
------------------------------------------------------------------------
3,500 lb/manual transmission................................ 16.1001
3,500 lb/automatic transmission............................. 15.9020
4,000 lb/automatic transmission............................. 13.8138
4,500 lb/automatic transmission............................. 13.2203
5,000 lb/automatic transmission............................. 10.6006
------------------------------------------------------------------------
