ROLL RATE ESTIMATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a roll rate estimation device that can estimate a roll rate with an inexpensive configuration.SOLUTION: A roll rate operation part 323 (roll rate estimation device) of a traveling state estimation part 32 includes: an estimated lateral acceleration operation part 323a (estimated lateral acceleration operation means) that estimates lateral acceleration Yg* in a height direction position different from the installing position of all-in-one design sensor 6 (lateral acceleration detection means) that detects lateral acceleration Yg of the vehicle; and a signal processing part 323c (roll rate estimation means) that estimates the roll rate dR based on the difference &Dgr;Yg* of a detection value Yg of all-in-one design sensor 6 (lateral acceleration detection means) with the value Yg* of the estimated lateral acceleration.