Honda ACCORD HYBRID 2005 Service Manual page 899

D Position: Shifting between 4th gear and 5th gear
As the speed of the vehicle reaches the p r o g r a m m e d value, the PCM turns shift solenoid valve C O N , and shift
solenoid valve C covers the port of shift solenoid valve C pressure ( S O to the shift valve C. Shift solenoid valve A
keeps OFF, and shift solenoid valve C keeps O N . The shift valve C is m o v e d to the left side to switch the port of line
pressure (4) and CPC A pressure (4A) leading to the 4th clutch. The shift valve C also uncovers the port of CPC B
pressure (4B) leading to the 5th clutch. The PCM controls A/T clutch pressure control solenoid valves A and B. A/T
clutch pressure control solenoid valve A pressure (56) is applied to the CPC valve A, and A/T clutch pressure control
solenoid valve B pressure (57) is applied to the CPC valve B. The CPC valve B regulates line pressure ( 4 " ) , and line
pressure (4") becomes CPC B pressure (4B). CPC B pressure (4B) f l o w s to the shift valve A via the shift valves C and B,
and becomes 5th clutch pressure (51) at the shift valve A. The 4th clutch pressure (40) is changed to CPC pressure
m o d e , and the 5th clutch is engaged w i t h the CPC pressure m o d e . The 1st clutch is also engaged, but no power is
transmitted because of the one-way clutch.
NOTE: W h e n used, " l e f t " or " r i g h t " indicates direction on the hydraulic circuit.
1 S T I I T - H O L D C L U T C H 2 N D 2 N D C L U T C H 2 N D 3 R D C L U T C H 2"*
A C C U M U L A T O R
AALUU
i l n n' m i
IT
1
A C C U M U L A T O R T R A N S M I S S I O N C L U T C H T R A N S M I S S I C ^ C L U T C H
1 TORQUE
SHIFT SOLENOID
VALVE D: OFF (CLOSE)
or ON (OPEN) '
4 T H C L U T C H 5 T H 4 T H
3 R D T R A N S M I S S I O N C L U T C H C L U T C H
A C C U M U L A T O R 4 T H F L U I D
<—UU™V
5 T H
i F L s
A C C U M U L A T O R ^ S S U R E
A C C U M U L A T O R
A T F FILTER
C O O L E R
SOLENOID
VALVE B
A/T CLUTCH
PRESSURE CONTROL
SOLENOID VALVES
A T F P U M P
(cont'd)
14-63