| 摘要 |
PROBLEM TO BE SOLVED: To determine roll rigidity distribution which minimizes the upper limit of aμutilization factor in vehicle integrated control. SOLUTION: The size of each wheel friction circle which shows maximum force generated by each wheel tire is found using a roll rigidity distribution which is calculated last, and the size of each wheel friction circle is multiplied by the utilization factor of each wheel which is calculated last to calculate the size of friction circle used by each wheel. Based on target vehicle body forces and moment showing a target vehicle body longitudinal force, a target vehicle body lateral force and a target yaw moment, and the calculated size of the used friction circle, force generated by each wheel tire, a utilization factor of each wheel which shows the ratio of each wheel to the upper limit of aμutilization factor, and roll rigidity distribution are calculated. Based on the calculated force generated by each wheel tire and roll rigidity distribution, the vehicle motion is controlled so that the calculated force generated by each wheel tire is obtained, and the suspension is controlled so that the calculated roll rigidity distribution is obtained. COPYRIGHT: (C)2008,JPO&INPIT |
