SS-ISO-4138 › Passenger cars Steady-state circular driving behaviour Open-loop test methods (ISO 4138:2021, IDT)
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This document specifies open-loop test methods for determining the steady-state circular driving behaviour of passenger cars as defined in ISO 3833 and of light trucks, such behaviour being one of the factors comprising vehicle dynamics and road-holding properties. The open-loop manoeuvres included in these methods are not representative of real driving conditions, but are nevertheless useful for obtaining measures of vehicle steady-state behaviour resulting from several specific types of control inputs under closely controlled test conditions. This document specifies open-loop test methods for determining the steady-state circular driving behaviour of passenger cars as defined in ISO 3833 and of light trucks, such behaviour being one of the factors comprising vehicle dynamics and road-holding properties. The open-loop manoeuvres included in these methods are not representative of real driving conditions, but are nevertheless useful for obtaining measures of vehicle steady-state behaviour resulting from several specific types of control inputs under closely controlled test conditions.
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Designation Name
SS-ISO 4138:2021
Revision Level
2021 EDITION
Status
Current
Publication Date
Sept. 23, 2021
Language(s)
English
Page Count
32
International Equivalent
ISO 4138:2021(IDT)