ISO 4040:2001
(Main)Road vehicles — Location of hand controls, indicators and tell-tales in motor vehicles
Road vehicles — Location of hand controls, indicators and tell-tales in motor vehicles
Véhicules routiers — Emplacement des commandes manuelles, des indicateurs et des témoins sur les véhicules à moteur
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 4040
Fourth edition
2001-12-15
Road vehicles — Location of hand controls,
indicators and tell-tales in motor vehicles
Véhicules routiers — Emplacement des commandes manuelles, des
indicateurs et des témoins sur les véhicules à moteur
Reference number
ISO 4040:2001(E)
© ISO 2001
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ISO 4040:2001(E)
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ISO 4040:2001(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical com-
mittees. Each member body interested in a subject for which a technical committee has been established has the
right to be represented on that committee. International organizations, governmental and non-governmental, in liai-
son with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 4040 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 13, Ergonomics
applicable to road vehicles.
This fourth edition cancels and replaces the third edition (ISO 4040:1997), which has been technically revised.
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ISO 4040:2001(E)
Introduction
There is a recognized potential for errors in the selection of controls essential to the safe operation of a vehicle if
these controls are not similarly located in all vehicles. Therefore, the standardization of these control locations must
be considered a logical and beneficial design objective, especially considering that drivers have an ever-increasing
opportunity to change from one vehicle to another.
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INTERNATIONAL STANDARD ISO 4040:2001(E)
Road vehicles — Location of hand controls, indicators and tell-tales
in motor vehicles
1 Scope and field application
This International Standard specifies the location of the controls in motor vehicles by subdividing the space within
reach of drivers into specific zones to which certain controls essential to the safe operation of vehicles are assigned.
It also specifies certain combinations of functions for multifunction controls and the degree to which certain indicators
and tell-tales are to be visible.
This International Standard is applicable to hand-operated controls, to indicators and to tell-tales in all motor vehi-
cles, excluding motorcycles and mopeds, as defined in ISO 3833.
NOTE A specification for a control indicator or tell-tale does not imply that the item must be fitted.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publica-
tions do not apply. However, parties to agreements based on this International Standard are encouraged to investi-
gate the possibility of applying the most recent editions of the normative documents indicated below. For undated
references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain reg-
isters of currently valid International Standards.
ISO 2575:2000, Road vehicles — Symbols for controls, indicators and tell-tales
ISO 3833:1977, Road vehicles — Types — Terms and definitions
ISO 3958:1996, Passenger cars — Driver hand-control reach
ISO 4513:1978, Road vehicles — Visibility — Method for establishment of eyellipses for driver's eye location
ISO 6549:1999, Road vehicles — Procedure for H- and R-point determination
SAE J941:1997, Motor Vehicle Drivers' Eye Locations
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
reference plane
vertical plane parallel to the longitudinal axis of the motor vehicle, passing through the steering wheel axis and within
a zone 50 mm to either side of the centre of the designated seating position for the driver at the R-point as defined in
ISO 6549
3.2
operational area of control
area swept by those parts of a control activated by the hand while the possible modes or positions are selected in the
manner intended by the designer
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ISO 4040:2001(E)
EXAMPLE See Figure 1.
Key
1 Extreme location of the control
2 Operational area of the control
Figure 1 — Example of operational area of a control
3.3
display area of indicator or tell-tale
area including the identification of the quantity displayed and those portions required to determine its level at any
point within the usable capacity of the instrumentation
EXAMPLE See Figure 2.
NOTE It need not include, for example, bezels or the manufacturer's type number.
3.4
steering-wheel plane
plane tangential to the upper surface of the steering-wheel rim in the design condition, as designated by the vehicle
manufacturer, and with the vehicle wheels in the straight-ahead position
3.5
steering-wheel axis
line at right angles to the steering-wheel plane, passing through the centre of rotation of the steering-wheel rim
3.6
zone 1
volume to the left of the reference plane bounded by the following surfaces (see Figure 3):
— a plane parallel to the steering-wheel plane and 20 mm above it;
— a plane parallel to the steering-wheel plane and 170 mm below it;
— a cylinder extending 100 mm beyond the periphery of the steering-wheel rim whose axis is on the steering-wheel
axis;
— a cylinder lying 130 mm inside the periphery of the steering-wheel rim whose axis is on the steering-wheel axis;
� �
— two planes intersecting along the steering-wheel axis, at 40 and 130 from the reference plane.
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ISO 4040:2001(E)
Key
1 Sub-area A: display of information given by pointer.
2 Sub-area B: example of display area for other information.
Figure 2 — Example of display area of indicators
3.7
zone 2
volume bounded by the following surfaces (see Figure 3):
— a plane parallel to the steering-wheel plane and 20 mm above it;
— a plane parallel to the steering-wheel plane and 170 mm below it;
— a cylinder of 50 mm radius whose axis is on the steering-wheel axis.
3.8
zone 3
volume to the right of the reference plane bounded by the following surfaces (see Figure 3):
— a plane parallel to the steering-wheel plane and 20 mm above it;
— a plane parallel to the steering-wheel plane and 170 mm below it;
— a cylinder extending 100 mm beyond the periphery of the steering-wheel rim whose axis is on the steering-wheel
axis;
— a cylinder lying 130 mm inside the periphery of the steering-wheel rim whose axis is on the steering-wheel axis;
� �
— two planes intersecting along the steering-wheel axis at 40 and 130 from the reference plane.
3.9
visible
seen with either eye and not necessarily both eyes simultaneously, from all positions within the 95th percentile eyell-
1)
ipses [see ISO 4513 and SAE J941 ], with the gear selector in top gear or drive position and the steering wheel in
the straight-ahead position adjusted according to the manufacturer's specification
1) Eyellipses are defined for passenger cars only in ISO 4513. Eyellipses are defined for commercial vehicles and
buses in SAE J941:1997, Section 5. Reference to SAE J941 will continue to be made for the commercial vehicle and
bus eyellipse until reference to commercial vehicle and bus eyellipses is included in ISO 4513.
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ISO 4040:2001(E)
Dimensions in millimetres
a
Stearing-wheel axis
b
Stearing-wheel plane
Figure 3 — Location of zones
3.10
head movement
movement required to overcome a geometric obstruction
�
NOTE For the purposes of this International Standard, it does not include movement when the target is more than 30 from the
line of sight.
3.11
id
...
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