| 摘要 |
The vehicle has an automatic gear changing unit actuating main speed changing devices (10, 11) and an auxiliary speed changing device (12) to a lower speed position within an automatic gear changing range and to a higher speed position, in response to a load on an engine (1). The sum of the gear changing range is modifiable towards lower and higher speed ends, and/or can be widened or shrunk for including more or less speed positions. |
