ELECTRONIC CONTROL SYSTEM FUNCTION [DJVA-EL]
id051901281400
Input/Output Signal Component Function
|
Input/output signal component |
Function |
|
|---|---|---|
|
Input
|
TR switch
|
Detects selector lever position
|
|
M range switch
|
Detects whether the selector lever is in the M range or not
|
|
|
Up switch
|
Detects up-shift request
|
|
|
Down switch
|
Detects down-shift request
|
|
|
TFT sensor
|
Detects CVT fluid temperature
|
|
|
Oil pressure sensor
|
Detects belt grip
|
|
|
Grade sensor
|
Detects vehicle inclination
|
|
|
Input/turbine speed sensor
|
Detects forward clutch drum rotation speed
|
|
|
Primary pulley speed sensor
|
Detects primary pulley rotation speed
|
|
|
Secondary pulley speed sensor
|
Detects secondary pulley rotation speed
|
|
|
output
|
Shift control solenoid No.1
|
Increases primary pulley pressure
|
|
Shift control solenoid No.2
|
Reduces primary pulley pressure
|
|
|
TCC solenoid
|
Opens/closes oil passages to engage TCC clutch
|
|
|
TCC engage solenoid
|
Adjusts TCC engagement oil pressure
|
|
|
Belt grip pressure linear solenoid
|
Adjusts belt grip pressure
|
|
|
CAN
|
Sends/receives information to and from external tester based on multiplex communication
|
|
Control Function
|
Control |
Function |
|---|---|
|
Auto Shift Control
|
• Controls gear ratio according to driving conditions so that fuel economy performance and driving performance are optimum.
|
|
TCC control
|
• Directly connects engine and CVT according to driving conditions so that transmission of drive force is improved
|
|
High/low temperature mode control
|
• Suppresses maximum engine speed to prevent overheating of CVT
• Sets minimum engine speed higher to promote CVT warming
|
|
Neutral control
|
• Shifts to neutral when vehicle is stopped in a forward driving range to improve fuel economy
|
|
Grade sensor learning
|
• Learns vehicle horizontal point
|
|
Oil pressure sensor learning
|
• Learns belt grip pressure
|
Input/Output Signal Component And Control Correlation
|
Input/output signal component/signal |
Control |
|||||
|---|---|---|---|---|---|---|
|
Auto Shift Control |
TCC control |
High/low temperature mode control |
Neutral control |
Grade sensor learning |
Oil pressure sensor learning |
|
|
Input
|
||||||
|
TR switch
|
X
|
X
|
|
X
|
X
|
X
|
|
M range switch
|
X
|
X
|
|
|
|
|
|
Up switch
|
X
|
X
|
|
|
|
|
|
Down switch
|
X
|
X
|
|
|
|
|
|
TFT sensor
|
|
X
|
X
|
X
|
|
X
|
|
Oil pressure sensor
|
|
|
|
|
|
X
|
|
Grade sensor
|
|
|
|
X
|
X
|
|
|
Input/turbine speed sensor
|
|
X
|
|
X
|
|
|
|
Primary pulley speed sensor
|
X
|
X
|
|
X
|
|
|
|
Secondary pulley speed sensor
|
X
|
X
|
|
X
|
X
|
X
|
|
Engine speed signal
|
|
X
|
|
X
|
X
|
X
|
|
Engine coolant temperature signal
|
|
X
|
X
|
X
|
|
|
|
Throttle opening signal
|
X
|
X
|
|
X
|
|
X
|
|
Brake signal
|
|
|
|
X
|
|
|
|
Output
|
||||||
|
Shift control solenoid No.1
|
X
|
|
|
|
|
|
|
Shift control solenoid No.2
|
X
|
|
|
|
|
|
|
TCC solenoid
|
|
|
|
X
|
|
|
|
TCC engage solenoid
|
|
X
|
|
|
|
|
|
Belt grip pressure linear solenoid
|
|
|
|
X
|
|
X
|