Kia Optima Hybrid: Automatic Transaxle System / Automatic Transaxle Description and Operation

Description
Automatic Transaxle’s Role
Both the engine clutch and the motor are mounted within the automatic transaxle assembly. The engine clutch is used to link the engine with the transaxle. The motor is used to turn the input of the transaxle or can be used as a generator. When used as a generator, the motor can be used for regenerative braking. Whether engine, motor or both, the driving torque goes through the automatic transaxle to the wheels.
Drive-train layout

Automatic Transaxle System

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Automatic Transaxle Components and Components Location

Components 1. Motor assembly2. Electric oil pump (EOP)3. Automatic transaxle case4. Rear cover5. Valve body cover6. Manual control lever7. Air breather hose8. Inhibitor switch9. Solenoid valve connector10. ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: SS-A Solenoid Valve (ON/OFF) Specifications


Specifications ON/OFF Solenoid Valve(SS-A, SS-B) Control type : Normal low type Control pressure kpa(kgf/cm?, psi)490.33 (5.0, 71.12) Internal resistance(?)10 ~ 11 ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine Clutch Control Solenoid Valve (E/C_VFS) Repair procedures


Inspection 1. Turn ignition switch OFF. 2. Remove the air duct (A). Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft) 3. Remove the air cleaner assembly. (1) Disconnect the breather hose (A). (2) Disconnect the air intake hose (B) and then remove the air cleaner assembly (C). Tightening ...

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