| 摘要 |
<p>PROBLEM TO BE SOLVED: To simply obtain an accurate stroke absolute position without adding a new sensor by determining a stroke neutral position with a travel center determining means, and calculating the stroke absolute position for the stroke neutral position from the specified cycle and the detected electrical angle. SOLUTION: When the vehicle speed V, input torque Tin, and the change quantityΔθof the electrical angle are judged as reference values, a timer (t) is started (S210-S240). The electrical angleθwhen the input torque Tin becomes 0 is added to the integrated valueΣθ, and the integration number is increased by 1 (S250, S255). At time-up (S260), the travel center S0 is calculated by S0=/n (S270), the flag X1 is reset to 0, the flag X2 is reset to 1, and the cycle T is reset to 0 respectively (S2800. If one of them is judged as 'no',Σθ, (n), and (t) are initialized to 0 respectively, and this subroutine is terminated (S290).</p> |
