Regulation No. 58-03 Proposal

Name:Regulation No. 58-03 Proposal
Description:Rear Underrun Protection. Proposal for the 03 Series.
Official Title:Proposals for the 03 Series of Amendments to Regulation No. 58 (Rear Underrun Protection).
Country:ECE - United Nations
Date of Issue:2015-08-24
Amendment Level:Original
Number of Pages:11
Information:Published as Regulation No. 58-03
Vehicle Types:Component, Heavy Truck, Trailer
Subject Categories:Drafts and Proposals (Historical)
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Keywords:

vehicles, vehicle, paragraph, test, rear, read, maximum, forces, ground, categories, device, rupd, regulation, height, annex, paragraphs, exceed, cross-member, amend, amendments, clearance, series, mass, horizontal, force, case, exceeding, lift, type, point, rup, insert, applied, application, distance, measured, part, requirements, approval, surface, departure, protection, angle, section, platform, requirement, system, renumber, including, underrun

Text Extract:

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ECE/TRANS/WP.29/2015/85
PROPOSAL FOR THE 03 SERIES
OF AMENDMENTS TO
REGULATION NO. 58
(REAR UNDERRUN PROTECTION)
ADOPTED AT THE 167 SESSION – NOVEMBER 2015
PROVISIONAL DATE OF ENTRY INTO FORCE: JUNE 18, 2016

Paragraphs 7.1. to 7.3., amend to read:
"7.1. The cross-member shall have a section height of at least 120mm. The lateral extremities of
the cross-member shall not bend … … not less than 2.5mm.
RUPD intended to be fitted on vehicles of categories M, N , N with a maximum mass not
exceeding 8t, O , O , on vehicles of category G and on vehicles fitted with a platform lift, the
cross-member shall have a section height of at least 100mm.
7.2. The RUPD may be so designed to have several positions at the rear of the vehicle. In this
event, there shall be a … … operator to vary the position of the device shall not exceed
40daN.
For RUPD that are designed to have several positions at the rear of the vehicle, a label shall
be provided either with (a) symbol(s) or in the language(s) of the country where the device is
sold to inform the operator about the standard position of the RUPD to offer effective
protection against under-running.
Label minimum size: 60 × 120mm
7.3. The RUPD shall offer adequate … … communication (Annex 1, Item 8)."
Paragraph 7.4.2., amend to read:
"7.4.2. The individual elements of the underrun protection, including those outboard of the lift
mechanism, where provided, shall have an effective surface area, in each case, of at least
420cm ."
Insert new Paragraphs 7.4.3. and 7.4.4., to read:
"7.4.3. For cross-members with a section height of less than 120mm, the individual elements of the
underrun protection, including those outboard of the lift mechanism, where provided, shall
have an effective surface area, in each case, of at least 350cm .
7.4.4. In the case of vehicles having a width of less than 2,000mm and where it is impossible to
achieve the requirements of Paragraphs 7.4.2. and 7.4.3., the effective surface may be
reduced on the condition that the resistance criteria are met."
Paragraph 15.2., amend to read:
"15.2. An approval number shall be assigned to each type approved. Its first two digits (at present
03 corresponding to the 03 series of amendments) shall indicate the series of amendments
incorporating …"

For vehicles of Categories O and O , without any platform lift system and not being
designed as a tipping-trailer, the maximum horizontal distances are reduced to 200mm
before the test forces have been applied and 300mm diminished by the largest total
deformation including both plastic and elastic deformation (Paragraph 7.3. of Part I)
measured and recorded during the test at any of the points where the test forces are applied
(Annex 1, Item 8).
In any case nonstructural protrusions such as tail lamps and those of less than 50mm of
size in any direction, such as rubber bumpers, resilient buffers, hinges and latches shall be
excluded from the determination of the most rearward point at the rear extremity.
Before the application of the test forces, the maximum allowed horizontal distance of a
single, a segmented or an inclined cross-member of a RUPD is 100 mm between the rear of
the cross-member measured at the most forward point and the rear of the cross-member
measured at the most rearward point, measured in the longitudinal plane of the vehicle."
Insert a new Paragraph 16.5., to read:
"16.5. The device shall be so fitted that after the application of the test forces specified in Annex 5
for vehicles of the Categories N with a maximum mass exceeding 8t, N , O and O , the
maximum ground clearance of the protective device, even when the vehicle is unladen, shall
at any point not exceed by more than 60mm the value before test. For vehicles with a
departure angle up to 8° (Paragraph 16.1.) the maximum ground clearance shall not exceed
600mm."
Paragraph 16.4. (former), renumber as Paragraph 16.6.
Insert a new Paragraph 16.7., to read:
"16.7. Given the provisions of Paragraph 7.2. for adjustable RUPD the label shall be placed clearly
and permanently visible at the driver's place or at the rear area of the vehicle next to the
RUPD, at a location, which is easily visible."
Paragraph 24.2., amend to read:
"24.2. An approval number shall be assigned to each type approved. Its first two digits (at present
03 corresponding to the 03 series of amendments) shall indicate the series of amendments
…"
Paragraph 25.1., amend to read:
"25.1. For vehicles of the Categories N with a maximum mass exceeding 8t, N , O and O , the
ground clearance with respect to the underside of the RUP, even when the vehicle is
unladen, shall not exceed:
(a)
(b)
450mm for motor vehicles and trailers with hydropneumatic, hydraulic or pneumatic
suspension or a device for automatic leveling according to load. In any case a
departure angle up to 8° according to ISO 612:1978 with a maximum ground
clearance of 550mm shall be deemed to satisfy the requirements.
500mm or a departure angle according to ISO 612:1978 of 8°, whichever is less, for
vehicles other than those in (a) above. In any case a departure angle up to 8°
according to ISO 612:1978 with a maximum ground clearance of 550mm shall be
deemed to satisfy the requirements.

Paragraphs 25.4. to 25.6. (former), renumber as Paragraphs 25.5. to 25.7. and amend to read:
"25.5. The cross-member shall have a section height of at least 120mm. The lateral extremities of
the cross-member shall not bend … … than 2.5mm.
For vehicles of the Categories M, N , N with a maximum mass not exceeding 8t, O , O ,
vehicles of category G and vehicles fitted with a platform lift, the cross-member shall have a
section height of at least 100mm.
25.6. The RUP may be so designed to have several positions at the rear of the vehicle. In this
event, there shall be … … position of the RUP shall not exceed 40daN.
For RUP that are designed to have several positions at the rear of the vehicle a label shall
be provided in the language(s) of the country where the device is sold.
Label minimum size: 60 × 120mm
The label shall be placed clearly and permanently visible at the rear area of the vehicle next
to the RUP to inform the operator about the standard position of the RUP to offer effective
protection against under-running.
25.7. The RUP shall offer … … RUP and the most rearward point at the rear extremity of the
vehicle, including any platform lift system, does not exceed … … more than 2m above the
ground when the vehicle is unladen shall be excluded.
After applying the test forces specified in Annex 5 for vehicles of the Categories N with a
maximum mass exceeding 8t, N , O and O , the maximum ground clearance of the
protective device, even when the vehicle is unladen, shall at any point not exceed by more
than 60 mm the value before test. For vehicles with a departure angle up to 8° (Paragraph
16.1.) the maximum ground clearance shall not exceed 600mm.
Paragraphs 25.7. to 25.8.1. (former), renumber as Paragraphs 25.8. to 25.9.1.
Paragraph 25.8.2. (former), renumber as Paragraph 25.9.2. and amend to read:
"25.9.2. The individual elements of the underrun protection, including those outboard of the lift
system, where provided, shall have an effective surface area, in each case, of at least
420cm ."
Insert new Paragraphs 25.9.3. and 25.9.4, to read:
"25.9.3. For cross-members with a section height of less than 120mm, the individual elements of the
underrun protection, including those outboard of the lift mechanism, where provided, shall
have an effective surface area, in each case, of at least 350cm .
25.9.4. In the case of vehicles having a width of less than 2,000mm and where it is impossible to
achieve the requirements of Paragraphs 25.9.2. and 25.9.3. above, the effective surface
may be reduced on the condition that the resistance criteria are met."

Item 20, amend to read:
"20. The following documents, bearing the approval number shown above, are available upon
request:
drawings, diagrams and layout plans of the components of the structure considered to be of
importance for the purposes of this Regulation;
detailed information about the devices representing the vehicle structures used for the
mounting of the RUPD (e.g. moment of inertia of the beams);
where applicable drawings of the protective devices and their position on the vehicle."
Annex 4, through the text and figures of the annex, replace figure "02" by "03" (5 times).
Annex 5,
Paragraph 1.1.3., shall be deleted.
Paragraphs 1.2. and 1.3., amend to read (inserting a new Figure 1):
"1.2. In the case of Paragraph 1.1.2., the parts used to connect the RUPD to part of the vehicle
chassis shall be equivalent … … on the vehicle. The part of the chassis can be fixed on a
test bench as shown in Figure 1, representing the minimum requirements to be fulfilled. The
structures used as side rails shall be representative of the chassis of vehicles for which the
underrun protection system is intended.
The distance of the foremost fixing point of the RUPD from the rigid test bench shall not be
less than 500mm. If a diagonal strut is used to support the RUPD, this distance shall be
measured between the foremost fixing point of the strut to the side rail structures and the
rigid test bench.
Figure 1

3.1.2. In the cases defined in Paragraphs 1.1.1. and 1.1.2. of this annex a horizontal force of
100kN or 50% of the force generated by the maximum mass of the vehicle, whichever is the
lesser, shall be applied consecutively to two points located 300 ± 25mm from the
longitudinal planes tangential to the outer edges of the wheels on the rear axle or of the
RUPD, if it exceeds the width of the rear axle, and to a third point located on the line joining
these two points, in the median vertical plane of the vehicle.
Notwithstanding the provision above for non-separate cab vehicles of Category N with a
maximum mass not exceeding 8t, the horizontal forces may be reduced to 50kN or 25%.
3.1.3. Upon request of the manufacturer, the force levels can be reduced to 80 per cent of the
requirement given in Paragraphs 3.1.1. to 3.1.2. for the vehicles listed in Annex 6."
Insert a new Annex 6, to read:
"ANNEX 6
SPECIFIC VEHICLES
1. SPECIFIC TYPES OF VEHICLES
1.1. Vehicles with tipping-bodies;
1.2. Vehicles fitted with a platform lift at the rear."
Insert a new Annex 7, to read:
"ANNEX 7
REQUIREMENTS FOR DIFFERENT VEHICLE CATEGORIES
Geometry referred to in paragraph
Vehicle category or type
of vehicle
M, N , N with a MaxM
< 8t, O , O , G
Section height
Ground clearance
before the test
Horizontal distance
between the rear of
the RUPD and the
rear of the vehicle
2.3./2.4./7.1./25.5. 2.3./2.4./16.2./25.2. 2.3./2.4./ 16.4./25.3.
Test force referred to
in paragraph(s):
2.3./2.4./ A5/3.1.1. to
3.1.2.
N with a MaxM* > 8t, N 7.1. or 25.5. 16.1. or 25.1. 16.4. or 25.3. A5/3.1.1. to 3.1.2.
O , O 7.1. or 25.5.
16.1./16.2. or
25.1./25.2.
16.4. or 25.3. A5/3.1.1. to 3.1.2.
Specific Vehicles (see
Annex 6)
7.1. or 25.5.
16.1./16.2. or
25.1./25.2.
16.4. or 25.3. A5/3.1.3.
Note: A reference such as A5/3.1.1. in the table indicates the annex (Annex 5) and paragraph (3.1.1.) of
that annex, where the relevant vehicle or requirement is described and specified. A reference such as
2.3. in the table indicates Paragraph (2.3.) of this Regulation, where the relevant requirement is
specified."
Rear Underrun Protection. Proposal for the 03 Series.