Table 8 Gear ratios, interval of gear ratio and transmission efficiency of the novel AT mechanism (2)
From: Configuration Synthesis and Performance Analysis of 9-Speed Automatic Transmissions
Gear | Gear ratio | Interval of gear ratio | Transmission efficiency |
|---|---|---|---|
Reverse gear | − 9.32 | ‒ | 0.9355 |
1st gear | 4.51 | ‒ | 0.9286 |
2nd gear | 2.90 | 1.56 | 0.9803 |
3rd gear | 2.36 | 1.23 | 0.9510 |
4th gear | 1.76 | 1.34 | 0.9794 |
5th gear | 1.57 | 1.12 | 0.9808 |
6th gear | 1 | 1.57 | 1 |
7th gear | 0.64 | 1.56 | 0.9865 |
8th gear | 0.60 | 1.07 | 0.9878 |
9th gear | 0.53 | 1.13 | 0.9804 |