Reaffirmed 2024

1. SCOPE

1.1 This Indian Standard (Part 2) defines and specifies open-loop and closed loop test methods for M1 category of vehicles as defined in IS 14272 for determining the steady-state circular driving behavior (gradients of steering wheel angle, understeer/oversteer, sideslip, roll angle, and steering wheel torque with respect to lateral acceleration). These properties are used to evaluate the vehicle stability and controllability during steady state cornering.

1.2 The manoevours included in this standard may not represent the real driving conditions but they are useful for obtaining the vehicle stability and control parameters.

NOTE - This standard provides guidelines for various test methods used to evaluate steady state vehicle properties and not for any regulatory requirements.

2. REFERENCES

The following standards contain provisions, which through reference in this text, constitute provisions of this standard. At the time of publication the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

14272 : 2011 Automotive vehicles — Types — Terminology ( first revision )

17128-1 : 2019 Automotive vehicles - Vehicle dynamics test methods: Part 1 General test conditions