Electric control apparatus for control of the running characteristic of a wheeled vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMasaki Yamamoto
Life of this patent
Estimating the term…
Abstract
An apparatus for estimating a slip angle in a wheeled vehicle having a set of front road wheels and a set of rear road wheels, including the same kind of wheel speed sensors arranged to detect each rotation speed of the road wheels for producing wheel speed signals respectively indicative of the detected rotation speeds of the road wheels, and a microcomputer responsive to the wheel speed signals from the sensors for calculating a first difference in speed between the front and rear road wheels and a second difference in speed between the left and right road wheels and for calculating a ratio of the first difference in speed relative to the second difference in speed for estimating the calculated ratio as a slip angle of the vehicle.
Claims4
An electric control apparatus for controlling a running characteristic of a wheeled vehicle having a set of front road wheels and a set of rear road wheels, comprising:
- wheel speed detecting means for detecting each rotation speed of the front and rear road wheels for producing wheel speed signals respectively indicative of the detected rotation speeds of the road wheels,
- first means, responsive to said wheel speed signals, for detecting a first difference in speed between the front and rear road wheels and a second difference in speed between the left and right road wheels;
- second means for calculating a ratio of the first difference in speed relative to the second difference in speed and for estimating a slip angle of the vehicle based on the calculated ratio;
- and
- third means for controlling the running characteristic of the vehicle in accordance with the estimated slip angle.
Dependencies are inferred from the claim text.