49 CFR Part 596 — Automatic Emergency Braking Test Devices

PART 596—AUTOMATIC EMERGENCY BRAKING TEST DEVICES Authority: 49 U.S.C. 322, 30111, 30115, 30117 and 30166; delegation of authority at 49 CFR 1.95. Source: 89 FR 39793, May 9, 2024, unless otherwise noted. Subpart A—General § 596.1 Scope. This part describes the test devices to be used for compliance testing of motor vehicles with motor vehicle safety standards for automatic emergency braking. § 596.2 Purpose. The design and performance criteria specified in this part are intended to describe devices with sufficient precision such that testing performed with these test devices will produce repetitive and correlative results under similar test conditions to reflect adequately the automatic emergency braking performance of a motor vehicle. § 596.3 Application. This part does not in itself impose duties or liabilities on any person. It is a description of tools that are used in compliance tests to measure the performance of automatic emergency braking systems required by the safety standards that refer to these tools. This part is designed to be referenced by, and become part of, the test procedures specified in motor vehicle safety standards, such as 49 CFR 571.127. § 596.4 Definitions. All terms defined in section 30102 of the National Traffic and Motor Vehicle Safety Act (49 U.S.C. chapter 301, et seq. Adult pedestrian test mannequin (APTM) Child pedestrian test mannequin (CPTM) Pedestrian test device(s) Pedestrian test mannequin carrier Vehicle test device Vehicle test device carrier § 596.5 Matter incorporated by reference. Certain material is incorporated by reference into this part with the approval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this section, the National Highway Traffic Safety Administration (NHTSA) must publish notice of change in the Federal Register www.archives.gov/federal-register/cfr/ibr-locations fr.inspection@nara.gov. (a) International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland; phone: + 41 22 749 01 11 fax: + 41 22 733 34 30; website: https://www.iso.org/. (1) ISO 3668:2017(E), Paints and varnishes—Visual comparison of colour of paints, (2) ISO 19206-2:2018(E), Road vehicles—Test devices for target vehicles, vulnerable road users and other objects, for assessment of active safety functions—Part 2: Requirements for pedestrian targets, (3) ISO 19206-3:2021(E), Test devices for target vehicles, vulnerable road users and other objects, for assessment of active safety functions—Part 3: Requirements for passenger vehicle 3D targets, (4) ISO 19206-4:2020(E), Test devices for target vehicles, vulnerable road users and other objects, for assessment of active safety functions -Part 4: Requirements for bicyclist targets, (b) [Reserved] Subpart B—Pedestrian Test Devices § 596.7 Specifications for pedestrian test devices. (a) Explanation of usage. (b) Explanation of usage. (c) Specifications for the pedestrian test devices General description. (2) Dimensions and posture. (3) Visual properties Head. (ii) Face. i.e., (iii) Skin. (iv) Torso and arms. (v) Legs. (vi) Feet. (4) Infrared properties. (5) Radar properties. (6) Radar cross section measurements. (7) Posture. (8) Articulation properties. § 596.8 [Reserved] Subpart C—Vehicle Test Device § 596.9 General description. (a) The vehicle test device provides a sensor representation of a passenger motor vehicle. (b) The rear view of the vehicle test device contains representations of the vehicle silhouette, a rear window, a high-mounted stop lamp, two taillamps, a rear license plate, two rear reflex reflectors, and two tires. § 596.10 Specifications for the vehicle test device. (a) Explanation of usage. (b) Explanation of usage. (c) Dimensional specifications. (2) Representations of the taillamps, rear reflex reflectors, and tires are symmetrical about the surrogate's centerline. (3) The license plate representation has a width of 300 ± 15 mm and a height of 150 ± 15 mm and mounted with a license plate holder angle within the range described in 49 CFR 571.108, S6.6.3.1. (4) The vehicle test device representations are located within the minimum and maximum measurement values specified in columns 3 and 4 of Tables A.4 of ISO 19206-3:2021 Annex A (incorporated by reference, see § 596.5). The tire representations are located within the minimum and maximum measurement values specified in columns 3 and 4 of Tables A.3 of ISO 19206-3:2021 Annex A (incorporated by reference, see § 596.5). The terms “rear light” means “taillamp,” “retroreflector” means “reflex reflector,” and “high centre taillight” means “high-mounted stop lamp.” (d) Visual and near infrared specification. (2) The rear representation infrared properties of the vehicle test device are within the ranges specified in Table B.1 of ISO 19206-3:2021 Annex B (incorporated by reference, see § 596.5) for wavelengths of 850 to 950 nm when measured according to the calibration and measurement setup specified in paragraph B.3 of ISO 19206-3:2021 Annex B (incorporated by reference, see § 596.5). (3) The vehicle test device rear reflex reflectors, and at least 50 cm 2 (e) Radar reflectivity specifications. 2 (2) The rear bumper area as shown in Table C.1 of ISO 19206-3:2021 Annex C (incorporated by reference, see § 596.5) contributes to the target radar cross section. (3) The radar cross section is assessed using radar sensor that operates at 76 to 81 GHz and has a range of at least 5 to 100 m, a range gate length smaller than 0.6m, a horizontal field of view of 10 degrees or more (-3dB amplitude limit), and an elevation field of view of 5 degrees or more (-3dB amplitude). (4) At least 92 percent of the filtered data points of the surrogate radar cross section for the fixed vehicle angle, variable range measurements are within the radar cross section boundaries defined in Section C.2.2.4 of ISO 19206-3:2021 Annex C (incorporated by reference, see § 596.5) for a viewing angle of 180 degrees when measured according to the radar measurement procedure specified in Section C.3 of ISO 19206-3:2021 Annex C (incorporated by reference, see § 596.5) for fixed-angle scans. (5) Between 86 to 95 percent of the vehicle test device spatial radar cross section reflective power is with the primary reflection region defined in Section C.2.2.5 of ISO 19206-3:2021 Annex C (incorporated by reference, see § 596.5) when measured according to the radar measurement procedure specified in Section C.3 of ISO 19206-3:2021 Annex C (incorporated by reference, see § 596.5) using the angle-penetration method.

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