projet le 26 juin 2001
Projet de norme pour les limiteurs de vitesse pour la session du 26/29 juin 2001
Source : site des Nations Unies à Genève
http://www.unece.org/trans/main/welcwp29.htm
INLAND TRANSPORT COMMITTEE
(One-hundred-and-twenty-fourth session,
26-29 June 2001, agenda item 4.2.14.)
PROPOSAL FOR DRAFT SUPPLEMENT 1 TO REGULATION No. 89
(Speed limitation devices)
Note:
The text reproduced below was adopted by GRRF at its forty-ninth
session, and is transmitted for consideration to WP.29 and to AC.1.
It is based on document TRANS/WP.29/GRRF/2000/26/Rev.1, as amended
(TRANS/WP.29/GRRF/49, para. 57 and annex 4).
This document is a working document circulated for discussion and comments. The use of this document for other purposes is the entire responsibility of the user. Documents are also available via the INTERNET: http://www.unece.org/trans/main/welcwp29.htm |
The title, amend to read:
"UNIFORM
PRESCRIPTIONS FOR APPROVAL OF:
I.
... maximum speed or their adjustable speed limitation
function.
II.
...
speed limiting device (SLD) or adjustable speed limitation device (ASLD) of an
approved type.
III.
...
(SLD) and adjustable speed limitation device (ASLD)."
The table of contents, insert a new annex 6, to read:
"Annex 6:
Tests and performance requirements for adjustable speed limitation
devices (ASLD)"
Paragraph 1.1.1. and its footnote 2/,
amend to read:
"1.1.1.
Part I: ... SLD and
to vehicles of categories M and N equipped with an adjustable speed limitation
device ASLD which have not been separately approved ... fulfilling the
function of an SLD or ASLD, as appropriate.
2/ It
is recommended to apply this Regulation with respect to SLDs to vehicles over
10 tonnes for which the limitation speed is less than the general speed
limitation."
Paragraphs
1.1.2. and 1.1.3, amend to read:
"1.1.2.
Part II: ... N2
and N3 of SLDs and installation on vehicles of categories M and N
of ASLD which have been type approved to Part III of this Regulation."
1.1.3.
Part III: .. . and ASLD which are intended to be fitted to vehicles of
categories M and N."
Paragraph
1.2.,
amend to read.
"1.2.
Purpose
The purpose of this Regulation is to limit the road speed of vehicles
by means of a vehicle system which has the primary function of controlling the
fuel feed to the engine or via the engine management."
Insert
new paragraphs 1.2.1. to 1.2.3., to read:
“1.2.1.
Vehicles of categories M3, N2 and N3
shall be limited to a maximum speed achieved by a speed limitation device (SLD)
or function (SLF).
1.2.2.
Vehicles of categories M1, N1 and
M2 shall be limited to a speed voluntarily set by the driver by
means of an adjustable speed limitation device (ASLD) or function (ASLF), when
it is activated.
1.2.3.
Vehicles of categories M3, N2 and
N3 may in addition be equipped with a ASLD or a ASLF.”
Insert
new paragraphs 2.1.5. to 2.1.7., to read:
“2.1.5.
“Adjustable limit speed Vadj” means the speed
voluntarily set by the driver.
2.1.6.
“Adjustable speed limitation function ASLF”,
means a function which allows the driver to set a vehicle speed Vadj,
and when activated limits the vehicle automatically to that speed.
2.1.7.
“Speed limitation function”, means a
function to control the fuel feed of the vehicle or engine management in order
to limit the vehicle speed to a fixed maximum value.”
Paragraph
5.1.,
amend to read:
"5.1.
Requirements for vehicles of categories M3, N2
and N3 equipped with SLF."
Insert
new paragraphs 5.2. to 5.2.7.3., to read:
"5.2.
Requirements for vehicles equipped with ASLF
5.2.1.
The
ASLF must be such that the vehicle in normal use, despite the vibrations to
which it may be subjected, complies with the provisions of Part I of this
Regulation.
5.2.1.1.
In particular, the device and all components supporting the
ASLF must be so designed, constructed and assembled as to resist corrosion
and ageing phenomena to which it may be exposed.
5.2.2.
The ASLF shall operate satisfactorily in its electromagnetic
environment and conform to the
technical prescriptions of Regulation No. 10 to the latest level of amendments
in force at the time of type approval.
5.2.3.
No malfunction or unauthorized interference with the system shall
result in an increase in engine power above that demanded by the position of
the driver's accelerator.
5.2.4.
The Vadj value shall be permanently indicated to the driver
and visible from the driver seat. This
does not preclude temporary interruption of the indication for safety reasons
or driver’s demand.
5.2.5.
The ASLF must satisfy the following requirements:
5.2.5.1.
The ASLF shall not actuate the vehicle's service braking system except
for vehicles of categories M1 and N1, where the
vehicle's service braking system may be actuated.
5.2.5.2.
The ASLF must be effective whichever the engine type or transmission is
used.
5.2.5.3.
The vehicle speed shall be limited to Vadj.
5.2.5.4.
It shall still be possible to exceed Vadj when tested in
accordance with paragraph 5.3.
5.2.5.4.1.
To exceed Vadj a positive action will be required. */
5.2.5.4.2.
Whenever the vehicle speed is exceeding Vadj the driver must
be informed by means of a suitable or warning signal other than the
speedometer.
5.2.5.4.3.
Compliance with paragraph 5.2.5.4.2. shall be demonstrated by
conducting the tests according to paragraph 5.3.
5.2.6.
Setting of Vadj:
5.2.6.1.
It shall be possible to set Vadj value by
steps not greater than 10 km/h between
30 km/h and the maximum design speed of the vehicle.
5.2.6.2.
In the case of vehicles manufactured for sale in any
country where imperial units are used, it shall be possible to set Vadj
value by steps not greater than 5 mph between 20 mph and the maximum design
speed of the vehicle.
5.2.6.3.
This shall be achieved by a control device operated
directly by the driver.
5.2.7.
Activation / de-activation:
5.2.7.1.
The ASLF must be capable of being activated/de-activated
at any time.
5.2.7.2.
The ASLF must be de-activated each time the engine is
stopped by a deliberate action of the driver.
5.2.7.3. When the ASLF is activated the initial setting of Vadj shall not be less than the current vehicle speed
*/
e.g. kickdown”
Paragraph
5.2. (former), renumber as paragraph 5.3., and amend to read:
"5.3.
Tests
5.3.1.
The speed limitation tests (retain former paragraph of
the current regulation for SLD)
5.3.2.
The adjustable speed limitation tests to which the
vehicle presented for approval are submitted are described in annex 6 of this
Regulation.
5.3.2.1.
Three different speeds will be chosen for the tests at the discretion
of the technical service.”
PART II,
Paragraphs
13. and 13.1., amend to read:
"13.
REQUIREMENTS"
13.1.
Requirements concerning the installation of an approved SLD."
Insert
new paragraphs 13.2. and 13.2.1.. to read:
"13.2.
Requirements concerning the installation of an approved ASLD.
13.2.1.
The vehicle on which the approved ASLD has been
installed shall meet all requirements of paragraphs 5.2.2., 5.2.4., 5.2.5.4.,
5.2.6. and 5.2.7.”
PART III,
Paragraphs
21.2. and 21.2.1., amend to read:
"21.2.
Requirements for ASLDs
21.2.1.
The adjustable speed limitation device ASLD must be
such that the vehicle in normal use, despite the vibrations to which it may be
subjected, complies with the provisions of Part III of this Regulation."
Insert
new paragraphs 21.2.1.1. to 21.3.2.1., to read:
"21.2.1.1.
In particular, the ASLF must be so designed, constructed and assembled
as to resist corrosion and ageing phenomena to which it may be exposed.
21.2.2.
The speed limitation function shall operate
satisfactorily in its electromagnetic environment, in accordance with
prescriptions of Regulation No. 10 to the latest level of amendments in force
at the time of type approval.
21.2.3.
No malfunction or unauthorized interference shall
result in an increase in engine power above that demanded by the position of
the driver's accelerator.
21.2.4.
The Vadj value shall be permanently
indicated to the driver by a visual display. This does not preclude temporary
interruption of the display for safety reasons.
21.2.5.
The ASLD must respect the following requirements:
21.2.5.1.
The adjustable speed limitation device shall not
actuate the vehicle's braking system except for vehicles of categories M1
and N1, where the vehicle's service braking system may be
actuated.
21.2.5.2.
The method used to limit speed when reaching Vadj
must be possible whichever transmission type (automatic or manual) of the
vehicle.
21.2.5.3.
The vehicle speed shall be limited to Vadj.
21.2.5.4.
It shall still be possible to exceed speed Vadj.
21.2.5.4.1.
To exceed Vadj a positive action will be
required. */
21.2.5.4.2.
Whenever the vehicle speed exceeds Vadj the
driver must be informed by means of a suitable or warning signal other than
the speedometer.
21.2.5.4.3.
Compliance with paragraph 21.2.5.4.2. shall be
demonstrated with paragraph 21.3.
21.2.5.5.
The speed limitation function shall permit a normal use
of the accelerator control for gear selection.
21.2.6.
Setting of Vadj:
21.2.6.1.
It shall be possible to set Vadj value by
steps no greater than 10 km/h (5 mph) between 30 km/h (20 mph) and
the maximum design max speed of the vehicle.
21.2.6.2.
In the case of vehicles manufactured for sale in any
country where imperial units are used, it shall be possible to set Vadj
value by steps not greater than 5 mph between 20 mph and the maximum design
speed of the vehicle.
21.2.6.3.
This shall be achieved by a control device operated by
the driver.
21.2.7.
Activation / de-activation
21.2.7.1.
When Vadj is set by the driver it shall not
capable of being modified by any means other than the designated control
device.
21.2.7.2.
The ASLD must be capable to be activated / de-activated
at any time.
21.2.7.3.
The ASLD must be de-activated at each engine stop and
the key removed.
21.3.
Tests
21.3.1.
The speed limitation tests to which the SLD presented
for approval is submitted as well as the performances required are described
in annex 5 to this Regulation.
*/ e.g.
kickdown
End note 3/, pertinent to
paragraphs 4.4.1., 12.4.1. and 20.4.1., amend to read:
"3/ 1
for Germany, ... 8 for the Czech Republic, .... 23 for Greece, 24 for Ireland,
25 for Croatia, 26 for Slovenia, 27 for Slovakia, 28 for Belarus, 29 for
Estonia, 30 (vacant), 31 for Bosnia and Herzegovina, 32 for Latvia,
33 (vacant), 34 for Bulgaria, 35-36 (vacant), 37 for Turkey, 38-39
(vacant), 40 for The former Yugoslav Republic of Macedonia, 41 (vacant), 42
for the European Community (Approvals are granted by its Member States using
their respective ECE symbol), 43 for Japan, 44 (vacant), 45 for Australia and
46 for Ukraine. Subsequent
numbers ....."
21.3.2.
The adjustable speed limitation tests to which the ASLD
presented for approval are submitted are described in annex 6 of this
Regulation.
21.3.2.1.
Three different speeds will be chosen for the tests at the discretion
of the technical service.
Annex 1, annex 2 and annex 3,
replace in all cases the following terms:
"speed limiting function" by "speed
limiting function / adjustable speed limitation function",
"speed limitation device" by "speed
limitation device / adjustable speed limitation device", and
"SLD" by "SLD/ASLD".
Insert
a new annex 6, to read:
"Annex
6
TESTS
AND PERFORMANCE REQUIREMENTS FOR ASLD
1.
TESTS
OF ADJUSTABLE SPEED LIMITATION SYSTEM
1.1.
Preparation of the vehicle
1.1.1.
A vehicle representative of the vehicle type to be
approved or an ASLD representative of the type of ASLD, as appropriate, shall
be submitted to the technical service.
1.1.1.1.
Where an ASLD is to be approved it shall be fitted by
the manufacturer to a vehicle which is representative of the type for which
the device is intended.
1.1.2.
The settings of the engine of the test vehicle,
particularly the fuel feed (carburettor or injection system), shall conform to
the specifications of the vehicle manufacturer.
1.1.3.
The tyres shall be bedded and the pressure shall be as
specified by the manufacturer for the vehicle.
1.1.4.
The vehicle mass shall be the minimum kerb weight
declared by the manufacturer.
1.2.
Characteristics of the test track
1.2.1.
The test surface shall be suitable for enabling
stabilised speed to be maintained and shall be free from uneven patches.
Gradients shall not exceed 2 per cent.
1.2.2.
The test surface shall be free from standing water,
snow or ice.
1.3.
Ambient weather conditions
1.3.1.
The mean wind speed measured at a height of at least 1
m above the ground shall be less than 6 m/s with gusts not exceeding 10 m/s.
1.4.
Test for the driver being informed that Vadj
is being exceeded
1.4.1.
The positive action (as referred to in paragraphs
5.2.5.4.1. and 21.2.5.4.1) required to enable Vadj to be
exceeded shall be applied when the vehicle is running at a speed 10 km/h below Vadj.
1.4.2.
The vehicle shall be accelerated up to a speed at least
10 km/h greater than Vadj.
1.4.3.
This speed shall be maintained for at least 30 seconds.
1.4.4.
Instantaneous vehicle speed shall be recorded during
the test and measured with an accuracy of ± 1 per
cent.
1.4.5.
The test shall be considered satisfactory if the
following conditions are met:
1.4.5.1.
The driver is informed by a warning signal when the
actual speed of the vehicle is exceeding Vadj by more than 3 km/h.
1.4.5.2.
The driver continues to be informed for the duration of
the time that Vadj is exceeded by more than 3 km/h.
1.5.
Test of the adjustable speed limitation function/device.
1.5.1.
With the ASLF/D deactivated, for each gear ratio
selected for the chosen test speed Vadj, the technical service
shall measure the forces required on the accelerator control to maintain Vadj
and a speed (Vadj*), which is 20 per cent or 20 km/h (whichever is
the greater) faster than Vadj.
1.5.2.
With the ASLF/D activated and set at Vadj,
the vehicle shall be run at a speed of 10 km/h below Vadj.
The vehicle shall then be accelerated by increasing the force on the
accelerator control over a period of 1 s ± 0.2 s
to that required to attain Vadj*.
This force shall then be maintained for a period of at
least 30 seconds, after the vehicle speed has stabilised.
1.5.3.
The instantaneous vehicle speed shall be recorded
during the test in order to establish the curve of the speed versus the time
and during the operation of the ASLF/D as appropriate.
The accuracy of the speed measurement shall be ± 1 per
cent. The accuracy of the time
measurement shall be less than 0.1 s.
1.5.4.
The test shall be considered satisfactory if the
following conditions are met:
1.5.4.1.
The stabilized speed (Vstab) reached by the
vehicle shall not exceed Vadj by more than 3 km/h
1.5.4.1.1.
After Vstab is reached for the first time:
1.5.4.1.1.1.
Vmax shall not exceed Vstab by
more than 5 per cent;
1.5.4.1.1.2.
the rate of change of speed shall not exceed 0.5 m/s2
when measured over a period greater than 0.1 s;
1.5.4.1.1.3.
the stabilized speed conditions specified in 1.5.4.1.1.
shall be attained within 10 s of first reaching Vstab;
1.5.4.1.2.
When stable speed control has been achieved:
1.5.4.1.2.1.
speed shall not vary by more than 3 km/h of Vadj;
1.5.4.1.2.2.
the rate of change of speed shall not exceed 0.2 m/s2
when measured over a period greater than 0.1 s;
1.5.4.1.2.3.
Vstab is the average speed calculated for a
minimum time interval of 20 seconds beginning 10 seconds after first reaching
Vstab;
1.5.4.1.3.
Tests in acceleration shall be carried out and the
acceptance criteria verified for each gear ratio allowing in theory Vadj*
to be achieved.”