| 摘要 |
PROBLEM TO BE SOLVED: To further properly determine a gear ratio by inputting navigation information, also prevent receiving of an influence by the navigation information even when it makes an error. SOLUTION: When existing in an uphill/downhill road correction section is judged from navigation information (S408), a downhill road gradient parameter PKUAVE (PKUAVE 2) is additionally corrected by an (excess) loading weight estimation value HWATNAVI (S412). In this way, gear ratio is determined by selecting a map spreading a three-speed region, gear shift control is performed so that multiple time use of an engine brake can be performed at downhill road running time. |
