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BS ISO 22735:2021

BS ISO 22735:2021

$142.49

Road vehicles. Test method to evaluate the performance of lane-keeping assistance systems

Published By Publication Date Number of Pages
BSI 2021 32
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This document specifies test methods and performance metrics to evaluate the behaviour of a vehicle equipped with lane keeping assistance system (LKAS, see 3.2).

For this purpose, variables relevant to vehicle dynamics as well as controllability of a vehicle with LKAS and their measurement methods are defined.

A system requiring a driver intervention is excluded from the scope. This document applies to the vehicles of M1 category.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Variables
4.1 Coordinate systems
4.2 Lateral deviation from path (YVUT error)
11 4.3 Variables to be measured
5 Measuring equipment
5.1 General
5.2 Transducer installation
5.3 Calibration
12 5.4 Data processing
6 Test conditions
6.1 General
6.2 Test data
6.3 Test track
6.3.1 General
6.3.2 Lane marking
13 6.4 Environmental conditions
6.5 Test vehicle
6.5.1 General condition
6.5.2 LKAS settings
6.5.3 Tyres
14 6.5.4 Wheel alignment measurement
6.5.5 Loading conditions
6.6 Vehicle preparation
15 7 Test procedure
7.1 Pre-test conditioning
7.1.1 General
7.1.2 Brakes conditioning
16 7.1.3 Tyres conditioning
7.1.4 System check
7.2 Test scenarios
18 7.3 Test execution
8 Performance metrics
8.1 General
8.2 Lateral speed of VUT during a test run (VlatVUT) and last lateral speed of VUT before line crossing (VlatVUT)blc
8.3 Lane departure warning activation time during a test run (TLDW) and last lane departure warning activation time before line crossing (TLDW)blc
8.4 LKAS activation time during a test run (TLKAS) and last LKAS activation time before line crossing (TLKAS)blc
19 8.5 Time to line crossing during a test run (TTLC) and last TTLC before line crossing (TTLC)blc
8.6 Distance to line crossing during a test run (DTLC) and last DTLC before line crossing (DTLC)blc
8.7 Maximum yaw velocity during a test run (Ψ̇VUT)max and last (Ψ̇VUT)max before line crossing (Ψ̇VUT)max,blc
8.8 Maximum lateral acceleration during a test run (AlatVUT) max and last (AlatVUT)max before line crossing (AlatVUT)max,blc
8.9 Maximum steering torque during a test run (MVUT) max and last (MVUT)max before line crossing (MVUT)max,blc
20 Annex A (informative) Road markings
28 Annex B (informative) Test report
30 Bibliography

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BS ISO 22735:2021
$142.49