A/T System Description - Power Flow (9-Speed A/T)

Power Flow 

Example of deceleration (power flow of 1st gear) 

When 1st gear is selected, dog clutch A, clutch D and dog clutch F are connected. Transmission input revolution is decreased by the internal gear of the transmission (gear ratio: 4.713).

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

Example of direct connection (power flow of 5th gear) 

When 5th gear is selected, dog clutch A, clutch B, and clutch E are connected. Transmission output revolution keeps the initial input revolution because it does not affect the internal gear of the transmission (gear ratio: 1.000).

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

Example of acceleration (power flow of 9th gear) 

When 9th gear is selected, clutch B, clutch D, and clutch E are connected. Transmission input revolution is increased by the internal gear of the transmission (gear ratio: 0.480).

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

Example of reverse (power flow of reverse gear) 

When reverse gear is selected, clutch B, clutch D, and dog clutch F are connected. Transmission input revolution decreases and turns to reverse direction by the internal gear of the transmission (gear ratio: -3.830).

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.