Patent ID: 8903619

Claim:
A vehicle control system that obtains an index based on a running condition of a vehicle, and changes a running characteristic of the vehicle according to the index, comprising: an index setting portion that makes a change in the index in response to a change in the running condition in a direction toward crisp running of the vehicle, faster than a change in the index in response to a change in the running condition in such a direction as to reduce crispness with which the vehicle is running, wherein the index setting portion includes an index holding portion that repeatedly obtains the index during running of the vehicle and holds, when an obtained index is larger than a last value, the index at the large value, and an index reducing portion that reduces the held value of the index under a predetermined condition, and the predetermined condition includes a condition that a time integral value of deviation obtained by integrating a deviation between the obtained value of the index and the held value of the index with respect to time exceeds a predetermined threshold value.