| 摘要 |
<p>PROBLEM TO BE SOLVED: To secure drivability of a vehicle when an automatic transmission is failed. SOLUTION: At a normal time when an automatic transmission is not failed, a target throttle opening TH is determined based on an accelerator opening AP by a driving force control means M1, and a throttle valve is controlled to be opened/closed based on the target throttle opening TH. When an abnormality detecting means M2 detects failure of the automatic transmission, a speed change stage changing means M4 forcedly establishes a speed change stage on the highest speed stage side possible to prevent quick change of driving force, and for compensating change of driving force of a driving wheel by establishment of the speed change stage different from a speed change stage to be naturally established, the target throttle opening TH determined by the driving force control means M1 is corrected by a driving force changing means M3. Concretely, in the case where the speed change stage on the higher speed stage side than the natural speed change stage is established by failure, the throttle opening TH is corrected to the increase side to compensate reduction of driving force of the driving wheel.</p> |
