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BS ISO 22139:2022

BS ISO 22139:2022

$142.49

Heavy commercial vehicles and buses. Test method for steering effort measurement when manoeuvring at low speed or with stationary vehicle

Published By Publication Date Number of Pages
BSI 2022 30
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principle
5 Variables
11 6 Measuring equipment
6.1 Description
6.2 Transducer installations
6.3 Data processing
12 7 Test conditions
7.1 General
7.2 Test track when manoeuvring at low speed
7.3 Test track with stationary vehicle
7.4 Test vehicle
7.4.1 General data
7.4.2 Operating components
7.4.3 Tyres and rims
7.4.4 Vehicle loading conditions
13 8 Test procedure
8.1 Preparation of test vehicle
8.2 Warm-up
8.3 Measurement with a stationary vehicle
14 8.4 Measurement when manoeuvring at low speed
15 9 Data evaluation and presentation of results
9.1 Time histories
16 9.2 Maximum steering-wheel torque vs. steering-wheel speed
17 9.3 Catch up steering-wheel speed
9.4 Cartesian coordinates
9.5 Maximum steering-wheel torque (MHmaxL and MHmaxR)
18 9.6 Steering-wheel work when steering OUT (WH OutL and WH OutR)
19 9.7 Steering-wheel torque when steering IN (MH 0L and MH 0R)
20 9.8 Steering work when steering IN (WH InL and WH InR)
21 9.9 Steering return ability
9.9.1 Remaining steering-wheel angle (Ī“H remLand Ī“H remR)
22 9.9.2 Steering-wheel speed when returning to steering-wheel straight forward position
9.10 Steering-wheel torque variation āˆ†MHmax / MHmax (%)
24 Annex A (normative) Test report ā€” General data
27 Annex B (normative) Test report ā€” Test conditions
29 Bibliography

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BS ISO 22139:2022
$142.49