Fishhook / roll stability testing


AB Dynamics explains a steer and counter-steer manoeuvre, which might be applied by a panicked driver avoiding an obstacle in the road. The fishhook test, which remains a requirement for all passenger vehicles sold in the USA, has a steering input defined in terms of angle against time. Maximum severity is achieved by triggering the counter-steer precisely when the maximum roll angle is reached following the initial steer input.


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Rachel's career in journalism began around five years ago when she started working for UKi Media & Events, having recently graduated from Coventry University where she studied the subject. Her favourite aspect of the job is interviewing industry experts, including researchers, scientists, engineers and technicians, and learning more about the groundbreaking technologies and innovations that are shaping the future of the automotive and tire industries.

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