This standard specifies the lateral stability test of passenger cars and trailer-coupled vehicles. This standard is applicable to passenger cars, light trucks and trailer-coupled vehicles according to KS R ISO 3833. Lateral stability tests are performed on yaw oscillation in towed vehicle-trailer coupled vehicles excited by defined steering impulses. Determine the damping characteristics of The trailer-connected vehicle is initially driven in normal, straight driving conditions. Vehicle vibration is initiated by a single impulse steering, followed by a cycle in which the steering is fixed and the vibration of the coupled vehicle is allowed to attenuate. Tests are performed at several constant speeds. If you want to test non-periodic instability, conduct a steady-state circular rotation test.?
KS R ISO 9815:2014 history
2019KS R ISO 9815-2019 Road vehicles — Passenger-car and trailer combinations — Lateral stability test
2014KS R ISO 9815:2014 Road vehicles — Passenger-car and trailer combinations — Lateral stability test
2008KS R ISO 9815:2008 Passenger-car and trailer combinations-Lateral stability test