PCM FUNCTION
id051700104800
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Item |
Content |
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Shift control
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• Detects engine load condition and vehicle speed, and switches to the most suitable gear position according to the preset shift diagram.
• In D range, automatically switches between POWER and NORMAL modes according to accelerator pedal depressing speed.
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TCC control
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• According to preset TCC point, performs TCC operation via smooth TCC.
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Slope mode control
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• Changes the shift point to prevent frequent shifting up/down when climbing hills.
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Line pressure control
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• Using linear type pressure control solenoid, adjusts line pressure according to engine load condition and vehicle driving condition.
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Clutch pressure direct control (Direct electric shift control)
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• With duty-cycle type shift solenoids A, B, and C, directly performs electronic control for clutch engagement pressure according to engine load condition and vehicle driving condition.
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Feedback control
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• Performs real-time feedback correction for clutch engagement pressure to achieve target shifts.
• Performs optimal correction for clutch engagement pressure to reduce changes in engine performance and/or elapsed transaxle.
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Engine-transaxle total control
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• Optimally controls engine output torque when shifting.
• Operates optimal clutch engagement pressure corresponding to engine output torque.
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Component |
Control item |
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|---|---|---|---|---|---|---|---|---|
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Shift control |
TCC control |
Slope mode control |
Line pressure control |
Clutch pressure direct control (Direct electric shift control) |
Feedback control |
Engine-transaxle total control |
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Input
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HOLD switch
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X
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TR switch
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X
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X
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X
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APP sensor
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X
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X
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X
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X
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Input/turbine speed sensor
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O
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X
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X
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X
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X
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VSS
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X
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X
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X
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X
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X
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Brake switch
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X
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TFT sensor
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X
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X
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X
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X
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X
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ECT sensor
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X
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CKP sensor
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X
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X
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X
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X
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MAF sensor
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X
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X
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X
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X
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X
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Output
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Pressure control solenoid
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X
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Shift solenoid A
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X
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X
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X
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X
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X
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Shift solenoid B
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X
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X
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X
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Shift solenoid C
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X
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X
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X
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Shift solenoid D
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X
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X
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Shift solenoid E
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X
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X
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X
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HOLD indicator light
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X
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