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6. Technical Standards Document No. 219, Revision 0 - Windshield Zone Intrusion

Technical Standards Document No. 219, Revision 0 — Windshield Zone Intrusion

Publication Date: Month ##, 20##
Effective Date: Month ##, 20##
Mandatory Compliance Date: Month ##, 20##

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TABLE OF CONTENTS

Introduction

S1. Scope

S2. Purpose

S3. Application

S4. Definition

S5. Requirement

S6. Protected zone template

S7. Test conditions

Table of Figures

Figure 1 - Windshield Protection Zone 4

Introduction

As defined by section 12 of the Motor Vehicle Safety Act, a Technical Standards Document (TSD) is a document that reproduces an enactment of a foreign government (e.g. a Federal Motor Vehicle Safety Standard issued by the U.S. National Highway Traffic Safety Administration). According to the Act, the Motor Vehicle Safety Regulations (MVSR) may alter or override some provisions contained in a TSD or specify additional requirements; consequently, it is advisable to read a TSD in conjunction with the Act and its counterpart Regulation. As a guide, where the corresponding Regulation contains additional requirements, footnotes indicate the amending subsection number.

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Identification of Changes

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In the case of an initial TSD, or when a TSD is revised and incorporated by reference by an amendment to the Regulations, the mandatory compliance date is as specified in the Regulations, and it may be the same as the effective date. When a TSD is revised with no corresponding changes to the incorporating Regulations, the mandatory compliance date is six months after the effective date.

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Technical Standards Documents may be consulted electronically in both HTML and Portable Document Format (PDF) on the Department of Transport’s Web site. The PDF version is a replica of the TSD as published by the Department and is to be used for the purposes of legal interpretation and application. The HTML version is provided for information purposes only.

Director, Standards Research and Development
for the Minister of Transport,
Infrastructure and Communities
Ottawa, Ontario

The text of this document is based on Federal Motor Vehicle Safety Standard No. 212, Windshield Zone Intrusion, as published in the United States Code of Federal Regulations, Title 49, Part 571, revised as of October 1, 2010.

S1. Scope

This Technical Standards Document (TSD) standard specifies limits for the displacement into the windshield area of motor vehicle components during a crash.

S2. Purpose

The purpose of this TSD standard is to reduce crash injuries and fatalities that result from occupants contacting vehicle components displaced near or through the windshield.

S3. Application

[CONTENT NOT REPRODUCED]

S4. Definition

Daylight Opening (DLO) means the maximum unobstructed opening through the glazing surface, including reveal or garnish moldings adjoining the surface, as measured parallel to the outer surface of the glazing material (Ouverture de jour ).

S5. Requirement

When the vehicle travelling longitudinally forward at any speed up to and including 48 km/h impacts a fixed collision barrier that is perpendicular to the line of travel of the vehicle, under the conditions of S7, no part of the vehicle outside the occupant compartment, except windshield molding and other components designed to be normally in contact with the windshield, shall penetrate the protected zone template, affixed according to S6, to a depth of more than 6 mm, and no such part of a vehicle shall penetrate the inner surface of that portion of the windshield, within the DLO, below the protected zone defined in S6.

S6. Protected zone template

S6.1 Untitled

The lower edge of the protected zone is determined by the following procedure (See Figure 1).

>

• Place a 165 mm diameter rigid sphere, with a mass of 6.8 kg in a position such that it simultaneously contacts the inner surface of the windshield glazing and the surface of the instrument panel, including padding. If any accessories or equipment such as the steering control system obstruct positioning of the sphere, remove them for the purposes of this procedure.
   
• Draw the locus of points on the inner surface of the windshield contactable by the sphere across the width of the instrument panel. From the outermost contactable points, extend the locus line horizontally to the edges of the glazing material.
   
• Draw a line on the inner surface of the windshield below and 13 mm distant from the locus line.
   
• The lower edge of the protected zone is the longitudinal projection onto the outer surface of the windshield of the line determined in S6.1(c).

• S6.2 Untitled

  The protected zone is the space enclosed by the following surfaces, as shown in Figure 1:

  >
• The outer surface of the windshield in its pre-crash configuration.
   
• The locus of points 76 mm outward along perpendiculars drawn to each point on the outer surface of the windshield.
   
• The locus of lines forming a 45° angle with the outer surface of the windshield at each point along the top and side edges of the outer surface of the windshield and the lower edge of the protected zone determined in S6.1, in the plane perpendicular to the edge at that point.

• S6.3 Untitled

  A template is cut or formed from Styrofoam, type DB, cut cell, to the dimensions of the zone as determined in S6.2. The template is affixed to the windshield so that it delineates the protected zone and remains affixed throughout the crash test.

  S7. Test conditions

  The requirement of S5 shall be met under the following conditions:

  S7.1 Untitled

  The protected zone template is affixed to the windshield in the manner described in S6.

  S7.2 Untitled

  The hood, hood latches, and any other hood retention components are engaged prior to the barrier crash.

  S7.3 Untitled

  Adjustable cowl tops or other adjustable panels in front of the windshield are in the position used under normal operating conditions when windshield wiping systems are not in use.

  S7.4 Untitled

  The parking brake is disengaged and the transmission is in neutral.

  S7.5 Untitled

  Tires are inflated to the vehicle manufacturer's specifications.

  S7.6 Untitled

  The fuel tank is filled to any level from 90 to 95 per cent of capacity.

  S7.7 Untitled

  The vehicle, including test devices and instrumentation, is loaded as follows:

  >
• Except as specified in S7.6, a passenger car is loaded to its unloaded vehicle weight plus its rated cargo-carrying and luggage capacity weight, secured in the luggage area, plus a 50th-percentile test dummy as specified in Title 49, part 572 of the Code of Federal Regulations this chapter at each front outboard designated seating position and at any other position whose protection system is required to be tested by a dummy under the provisions of Standard No. section 208 of the MVSR. Each dummy is restrained only by means that are installed for protection at its seating position.
   
• Except as specified in S7.6, a multipurpose passenger vehicle, truck or bus is loaded to its unloaded vehicle weight, plus 136 kg or its rated cargo-carrying and luggage capacity, whichever is less, secured to the vehicle, plus a 50th-percentile test dummy as specified in Title 49, part 572 of the Code of Federal Regulations this chapter at each front outboard designated seating position and at any other position whose protection system is required to be tested by a dummy under the provisions of Standard No. section 208 of the MVSR. Each dummy is restrained only by means that are installed for protection at its seating position. The load is distributed so that the mass on each axle as measured at the tire-ground interface is in proportion to its Gross Axle Weight Rating (GAWR). If the mass on any axle when the vehicle is loaded to its unloaded vehicle weight plus dummy mass exceeds the axle's proportional share of the test mass, the remaining mass is placed so that the mass on that axle remains the same. For the purposes of this section, unloaded vehicle weight does not include the mass of work-performing accessories. Vehicles are tested to a maximum unloaded vehicle weight of 2,495 kg.

• Figure 1 - Windshield Protection Zone

  
  Notes:
  1. Dimensions in mm
  2. Not to scale

  Date modified:

  2011-10-31

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