Table 9 Gear ratios, interval of gear ratio and transmission efficiency of the novel AT mechanism (3)
From: Configuration Synthesis and Performance Analysis of 9-Speed Automatic Transmissions
Gear | Gear ratio | Interval of gear ratio | Transmission efficiency |
|---|---|---|---|
Reverse gear | − 3.00 | ‒ | 0.9333 |
1st gear | 5.57 | ‒ | 0.8867 |
2nd gear | 3.30 | 1.69 | 0.9791 |
3rd gear | 1.95 | 1.69 | 0.9643 |
4th gear | 1.75 | 1.11 | 0.9845 |
5th gear | 1.58 | 1.11 | 0.9713 |
6th gear | 1 | 1.58 | 1 |
7th gear | 0.80 | 1.25 | 0.9895 |
8th gear | 0.67 | 1.19 | 0.9803 |
9th gear | 0.55 | 1.22 | 0.9714 |