Using conventional technology, it used to be difficult to calculate vehicle behavior in a limit handling situation by mechanical system analysis and predict that behavior with a high degree of accuracy. A method using tire modeling based on Magic Formula has been developed, which has been optimized for limit behavior, and accounts for lateral tire deflection. From a vehicle standpoint, a method using car modeling based on conventional vehicle model has been developed for improvement of the suspension rate and traction torque control. These measures have made it possible to perform mechanical system analysis calculation of vehicle handling behavior up to the limit. As a result, it has become possible to attain a high degree of accuracy in predicting vehicle limit behavior in turns, which is one of the dynamic characteristics for limit drivability.
Article of Honda R&D Technical Review Vol.14 No.1 (107 - 116)