| 摘要 |
PROBLEM TO BE SOLVED: To provide a steering angle speed calculating device capable of enhancing resolution of steering angle speed calculated at the time of a low speed steering and calculating steering angle speed capable of detecting an initial motion of a change of the steering angle with excellent followability also at the time of a sudden change of the steering angle. SOLUTION: This steering angle speed calculating device is provided with a steering angle sensor 42 for detecting the steering angleθof a steering wheel 20, a torque sensor 40 for detecting torque T imparted to a steering shaft 22, and a steering angle speed calculation means 50 for calculating the steering angle speed S by dividing changed amountΔθof the steering angleθper prescribed time Td by the prescribed time Td. The steering angle speed calculation means 50 changes the prescribed time Td according to fluctuation amount of the torque T. COPYRIGHT: (C)2005,JPO&NCIPI |
