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BS ISO 22733-1:2021

BS ISO 22733-1:2021

$142.49

Road vehicles. Test method to evaluate the performance of autonomous emergency braking systems – Part 1: Car-to-car

Published By Publication Date Number of Pages
BSI 2021 28
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This document specifies a method to evaluate the behaviour of a vehicle equipped with an autonomous emergency braking system (AEBS), or dynamic brake support (DBS) during several accident scenarios. Those accidents occur during a straight-line driving when the vehicle under test (VUT) approaches another vehicle in the same lane. Both vehicles are aligned in longitudinal axis to each other.

The most important part of the vehicle behaviour during these accidents scenarios is the capacity to avoid or mitigate the collision.

Systems requiring driver intervention are not in the scope of this document.

NOTE

Depending on accidentology, only a part of the scenarios can be used for an evaluation of performance. AEB system evaluation based upon this document is limited to longitudinal accident scenarios.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Variables
4.1 Reference system
4.2 Lateral offset
12 4.3 Variables to be measured
5 Equivalent vehicle target
6 Measuring equipment and data processing
6.1 General
6.2 Description
13 6.3 Transducer installation
6.4 Calibration
6.5 Data processing
7 Test conditions
7.1 General
7.2 General data
7.3 Test track
14 7.4 Weather conditions
7.5 Surroundings
7.6 VUT
7.6.1 General vehicle condition
7.6.2 AEB system settings
15 7.6.3 Deployable pedestrian protection systems
7.6.4 Tyres
7.6.5 Braking system
7.6.6 Other influencing system
16 7.6.7 Loading conditions of the vehicle
8 Test procedure
8.1 Test preparation
8.1.1 Brake conditioning
8.1.2 Tyre conditioning
17 8.2 Test scenarios
18 8.3 Test conduct
8.4 Test execution
8.4.1 Speed
8.4.2 Validity criteria
19 8.4.3 End of test conditions
8.4.4 Determination of speed incremental steps
9 DBS tests (optional)
10 Performance metrics
10.1 Maximum speed of VUT at which collision is avoided: V VUT
10.2 Mean longitudinal acceleration of the VUT: (A VUT)mean
20 10.3 Maximum longitudinal acceleration of the VUT with DBS: (A VUT)max
10.4 Average increase rate of longitudinal acceleration of VUT with DBS: (A VUT)increase rate
10.5 Impact speed of VUT at which collision first occurs: V impact
10.6 Activation time of AEBS: T AEB
10.7 Activation time of FCW: T FCW
10.8 Maximum yaw rate of the VUT: ļæ¼
10.9 Lateral offset of the VUT: Y VUT
10.10 Maximum steering wheel velocity of VUT: Ī© VUT
21 Annex A (informative) Brake application procedure
23 Annex B (informative) Test report
26 Bibliography

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BS ISO 22733-1:2021
$142.49