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LINE PRESSURE CONTROL TM-195 < SYSTEM DESCRIPTION > [7AT: RE7R01B (VK50VE)] C E F G H I J K L M A B TM N O P LINE PRESSURE CONTROL System Diagram INFOID:0000000005250191 System Description INFOID:0000000005250192 INPUT/OUTPUT SIGNAL CHART *: This signal is transmitted via CAN communication line. SYSTEM DESCRIPTION • When an engine and A/T integrated control signal (engine torque) equivalent to the engine drive force is transmitted from the ECM to the TCM, the TCM controls the line pressure solenoid valve. • The TCM has stored in memory a number of patterns for the optimum line pressure characteristic for the driving state. • In order to obtain the most appropriate line pressure characteristic to meet the current driving state, the TCM controls the line pressure solenoid current value and thus controls the line pressure. Normal Control JSDIA1345GB Sensor Input signal to TCM TCM function Actuator Input speed sensor 1, 2 Input speed Line pressure control Line pressure solenoid valve ↓ Pressure regulator valve Output speed sensor Vehicle speed A/T fluid temperature sensor ATF temperature ECM Engine speed signal* Accelerator pedal position signal* Engine and A/T integrated control signal |