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Table 4 Rotational speed of each component when B engaged (r/min)

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

  Mode 7 Mode 8 Mode 9
S4 \(\frac{{(1 + K_{4} )K_{2} }}{{(1 + K_{2} )K_{3} }} + 1\) \(\frac{{1 + K_{4} }}{{K_{3} }} + 1\) \(1 + \frac{{(1 + K_{1} )(1 + K_{4} )K_{2} }}{{(1 + K_{2} )K_{1} K_{3} }}\)
R3PC4 \(\frac{{K_{2} }}{{(1 + K_{2} )K_{3} }} + 1\) \(\frac{1}{{K_{3} }} + 1\) \(1 + \frac{{(1 + K_{1} )K_{2} }}{{(1 + K_{2} )K_{1} K_{3} }}\)
S1S2PC3R4 1 1 1
PC1 \(\frac{1}{{1 + K_{1} }}\) \(\frac{{K_{2} - K_{1} }}{{(1 + K_{1} )K_{2} }}\) 0
PC2S3 \(\frac{1}{{1 + K_{2} }}\) 0 \(- \frac{{K_{2} - K_{1} }}{{(1 + K_{2} )K_{1} }}\)
R1R2 0 \(- \frac{1}{{K_{2} }}\) \(- \frac{1}{{K_{1} }}\)