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Table 10 Gear ratios, interval of gear ratio and transmission efficiency of the novel AT mechanism (4)

From: Configuration Synthesis and Performance Analysis of 9-Speed Automatic Transmissions

Gear Gear ratio Interval of
gear ratio
Transmission efficiency
Reverse gear − 9.67 0.8774
1st gear 4.68 0.8731
2nd gear 2.8 1.67 0.9807
3rd gear 2.28 1.23 0.9350
4th gear 1.78 1.28 0.9655
5th gear 1.61 1.11 0.9695
6th gear 1 1.61 1
7th gear 0.6 1.67 0.9603
8th gear 0.57 1.05 0.9595
9th gear 0.5 1.14 0.9494