Accueil | Table des matières | Remonter
Projet de norme préparé pour la réunion du 11/13 septembre 2000
Source : site des Nations Unies Genève
ECONOMIC COMMISSION FOR EUROPE
INLAND TRANSPORT COMMITTEE
World Forum for Harmonization of Vehicle Regulations (WP.29)
Working Party on Brakes and Running Gear (GRRF)
(Forty-eighth session, 1113 September 2000,
agenda item 4.)
PROPOSAL FOR DRAFT AMENDMENTS TO REGULATION No. 89
(Speed limitation devices)
Transmitted by the expert from France
Note: The text reproduced below was prepared by the expert from France on behalf
of the drafting group in charge of updating Regulation No. 89
(TRANS/WP.29/GRRF/47, para. 52). This document supersedes document
TRANS/WP.29/GRRF/1999/1
Note: This document is distributed to the Experts on Brakes and Running Gear
only.
Amend the title, to read:
"UNIFORM PRESCRIPTIONS FOR APPROVAL OF:
I. ... maximum speed or their speed self-control function.
II. ... speed limiting device (SLD) or self speed control device (SSCD) of an
approved type.
III. ... (SLD) and speed self-control device (SSCD)."
The table of contents, insert a new annex 6, to read:
"Annex 6 Tests and performance requirements for self speed control devices
(SSCD)"
Text of the Regulation,
Paragraphs 1.1.1., 1.1.2. and 1.1.3.,amend to read:
"1.1.1.Part I:... SLD and to vehicles of categories M and N equipped with a
speed self-control device SSCD which have not been separately approved ...
fulfilling the function of an SLD or SSCD, as appropriate.
1.1.2.Part II:N2 and N3 of SLDs and installation on vehicles of categories M and
N of SSCD which have been type approved to Part III of this Regulation."
1.1.3.Part III: . and SSCD which are intended to be fitted to vehicles of
categories M and N."
Paragraph1.2.,amend to read.
"1.2.Purpose
The purpose of this Regulation is to limit the road speed of vehicle by means of
a vehicle system whose primary function is to control the fuel feedto the engine."
Insert new paragraphs 1.2.1. and 1.2.2., to read:
"1.2.1.Vehicles of categories [M and N] shall be limited to a speed voluntarily
set by the driver by means of a speed self-control device (SSCD)or function
(SSCF).
1.2.2.Vehicles of categories M3, N2 and N3 shall [in addition] be limited to a
maximum speed achieved by a speed limitation device (SLD) or function (SLF)."
Insert new paragraphs 2.1.5. and 2.1.6., to read:
"2.1.5.'Regulated speed Vreg' means the speed voluntarily set by the driver.
2.1.6.Speed self-control function SSCF, means a variable speed limitation
function which allows the driver to set the vehicle maximum speed Vreg and for
the vehicle to be automatically limited to that speed."
Paragraph2.4.1.3., delete the word "and".
Paragraph2.4.1.4., amend to read:
"...... of the tested vehicle, and"
Insert a new paragraph 2.4.1.5., to read:
"2.4.1.5.The commercial type (for vehicles of categories M1, N1)."
Paragraph5.1.,amend to read:
"5.1.Requirements for vehicles of categories M3, N2 and N3 equipped with SLF."
Insert new paragraphs 5.2. to 5.2.9., to read:
"5.2.Requirements for vehicles of categories M and N equipped with SSCF.
5.2.1.[Vehicles with a design maximum speed exceeding [X km/h] must be equipped
with a Speed Self Control Function (SSCF).]
5.2.1.1.When a vehicle is equipped with a SSCF function, the function must
fulfil all the requirements laid down in paragraph 5.2.2. of this Regulation.
5.2.2.The speed self-control function SSCF must be such that the vehicle
innormal use, despite the vibrations to which it may be subjected, complies
withthe provisions of Part I of this Regulation.
5.2.2.1.In particular, the SSCF must be so designed, constructed and assembled
as to resist corrosion and ageing phenomena to which it may be exposed.
5.2.3.It shall be possible to set Vreg value by steps not bigger than5km/h
between [30 km/h] and the maximum design speed of the vehicle.
5.2.3.1.This shall be achieved by either:
5.2.3.1.1.Acontrol device operated by the driver, or
5.2.3.1.2.[Speedi formation provided independently of the driver].
5.2.4.The set up of this Vreg shall not be capable of being modified by the
driver by other means than the above control device.
5.2.5.The Vreg value shall be permanently indicated to the driver and visible
from the driver seat. This does not preclude temporary interruption.
5.2.6.The SSCF shall operate satisfactorily in its electromagnetic environment.
5.2.7.The SSCF must be de-activated at each engine stop and key removed and must
be set after re ignition.
5.2.8.The SSCF must satisfy the following requirements:
5.2.8.1.[The speed limitation function shall not actuate the vehicle's braking
systems.]
5.2.8.2.The method used to limit speed when reaching Vreg must be possible which
ever transmission type (automatic or manual) of the vehicle.
5.2.8.3.The vehicle speed shall be limited to Vreg, when tested in accordance
with paragraph 5.3.
5.2.8.4.It shall still be possible to exceed Vreg.
5.2.8.4.1. To exceed Vreg a positive action will be required.
5.2.8.4.2. When ever the vehicle speed exceeds Vreg the driver must be informed
by means of a suitable or warning signal other than the tachometer.
5.2.8.4.3. Compliance with paragraph 5.2.8.4.2. shall be demonstrated with
paragraph 5.3.
5.2.9. No malfunction or unauthorized interference shall result in an increase
in engine power above that demanded by the position of the driver's accelerator.
It must be demonstrated by conformance to the technical prescriptions of
Regulation No.10, 02 series of amendments."
Paragraph5.2. (former), renumber as paragraph 5.3. and amend to read:
"5.3.Tests
5.3.1.The speed limitation tests
5.3.2.The speed self-control tests to which the vehicle presented for approval
is submitted are defined in annex 6 of this Regulation.
5.3.3.The SSCF must fulfil the tests defined in paragraphs 1.1. to 1.1.4. of
annex 5 of this Regulation. Three different speeds will be chosen for the tests
at the discretion of the technical service."
Paragraphs13. and 13.1., amend to read:
"13.REQUIREMENT"
13.1. Requirements concerning the installation of an approved SLD."
Insertnew paragraphs 13.2. and 13.2.1.. to read:
"13.2. Requirements concerning the installation of an approved SSCD.
13.2.1.The vehicle on which the approved SSCD has been installed shall meet
allrequirements of paragraphs 5.2.3., 5.2.4., 5.2.6., 5.2.7.1., 5.2.7.4. and
subparagraphs."
Paragraphs21.2. and 21.2.1., amend to read:
"21.2.Miscellaneous for SSCDs
21.2.1.The speed self-control device SSCD 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."
Insertnew paragraphs 21.2.1.1. to 21.3.3., to read:
"21.2.1.1.In particular, the SSCF must be so designed, constructed and assembled
as to resist corrosion and ageing phenomena to which it may be exposed.
21.2.2.It shall be possible to set Vreg value by steps no greater than5km/h
between 30 km/h and the maximum design max speed of the vehicle.
21.2.2.1.This shall be achieved by either:
21.2.2.1.1.Acontrol device operated by the driver, or
21.2.2.1.2.[Speed information independently of the driver such as by radio]
21.2.3.Vreg set up must not be capable of being modified by the driver by other
means than the above control device.
21.2.4.The Vreg value shall be permanently indicated to the driver by a visual
display.
21.2.5.[When the regulated speed is reached], the driver must be immediately and
permanently informed.]
21.2.6.The speed limitation function shall operate satisfactorily in its
electromagnetic environment.
21.2.7.The SSCD must be de-activated at each engine stop and key removed.
21.2.8.The SSCD must respect the following requirements:
21.2.8.1.[The speed limitation function shall not actuate the vehicle's braking
systems.]
21.2.8.2.The method used to limit speed when reaching Vreg must be possible
whichever transmission type (automatic or manual) of the vehicle.
21.2.8.3.The SSCD and the SLD shall have the same control device [and must be
capable of receiving speed information provided independently of the driver (suchas
by radio)].
21.2.8.4.The above control device must provide set up by 5 km/h steps between
30km/h and max design speed.
21.2.8.5.It shall still be possible to exceed speed Vreg.
21.2.8.6.The speed limitation function shall permit a normal use of the
accelerator control for gear selection.
21.2.9.No malfunction or unauthorized interference shall result in an increase
in engine power above that demanded by the position of the
driver'saccelerator.It must bedemonstrated by conformance to the technical
prescriptions of Regulation No.10, 02 series of amendments.
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.
21.3.2.The tests to which the SSCD presented for approval is submitted are
defined in annex 6 of this Regulation.
21.3.3.The SSCD must fulfil the tests defined in paragraphs 1.1. to 1.1.4.
ofannex 5 of this Regulation. Three different speeds will be chosen for the
tests at the discretion of the technical service."
Insert a new annex 6, to read:
"Annex6
TESTSAND PERFORMANCE REQUIREMENTS FOR SSCD
1.TESTS OF SPEED SELF-CONTROLSYSTEM
1.1.Preparation of the vehicle
1.1.1.A vehicle representative of the vehicle type to be approved or an SSCD
representative of the type of SSCD, as appropriate, shall be submitted to
thetechnical service.
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 ofthe
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.
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 6m/s with gusts not exceeding 10m/s.
1.4.Test
1.4.1.The vehicle running at a speed which is 10 km/h below the regulated speed
shall be accelerated as much as possible using a fully positive action on
theaccelerator control.
1.4.2.Instantaneous speed shall be recorded during test and measured with an
accuracy of1 per cent.
1.4.3.The test shall be considered satisfactory if the following conditions are
met:
1.4.3.1.The overshoot information shall be transferred to the driver when the
actual speed of the vehicle exceeds the Vreg speed of 3 km/h.
1.4.3.2.The tests shall be performed at 3 different speeds selected by the
technical service and approval requirements verified by using the gear ratio
which permits the maximum acceleration and for which the Vreg is possible