Wheel speed correction method that accounts for use of a mini tire

摘要

A method is provided to correct the wheel speed for a vehicle equipped with a mini tire as the spare tire plus a nonvolatile memory device. The presence or absence of a mounted mini tire is detected while the vehicle is moving, and if a mini tire is mounted, the mounting information is stored in the nonvolatile memory. If an antilock control is triggered after the vehicle is restarted and in motion, a correction is made for the mini tire using the mounting information stored in the nonvolatile memory.