| 摘要 |
<p>PURPOSE:To secure the accelerability of a vehicle after escaping from a hydroplane state a checking the overestimation of an accelerating slip with this hydroplane state by installing a hydroplane recovery control means which outputs a control command, controlling the accelerating slip of driving wheels, to an accelerating slip control means. CONSTITUTION:When escaping from a hydroplane state, a cover high preflag PHYF is set to RHY=1. After escaping from the hydroplane state, when traction control takes place on the basis of a controlling front-wheel speed filter value by means of an ordinary filter effect, a controlling driven wheel speed filter value is not reset, whereas an actual accelerating slip value is S3, and thereby an accelerating slip value is regarded as S+S4. With this slip overestimate, accelerating slip control becomes too much. In contrast with this, the controlling front-wheel speed filter value by means of a low filter effect comes to such a value as approximating to an actual driven wheel speed, thus the slip overestimate is eliminated.</p> |
