Steering -> EPS Operation for Your Toyota Alphard Van First Generation (2002-2008)

Model Outline  
for Technician  
Engine  
Chassis  
Body  
Body Electrical  
Steering  
EPS Operation  
There are the following functions in assist control  
Item  
Function  
Calculates the assist current from the steering torque value and the  
vehicle speed, and actuates the motor  
Basic Control  
Inertia Compensation Improves the starting movement of the motor when the driver starts to  
Control  
turn the steering wheel  
During the short interval between the time the driver fully turns the  
steering wheel and the wheels try to recover, this control assists the  
recovery force  
Recovery Control  
Regulates the amount of assist when the driver turns the steering wheel  
while driving at high speeds, thus damping the changes in the yaw rate  
of the vehicle body  
Damper Control  
Estimates the motor temp. based on the amperage and the current  
duration . If the temp. exceeds the standard, it limits the amperage to  
prevent the motor from overheating  
System Overheat  
Protection Control  
Cooperative Control  
with EPS  
Controls EPS system in order to facilitate the driver to operate the  
steering in a direction that stabilizes the vehicle during VSC operating  
EPS Electric  
Load Control  
Limits the operation of the electric load when the battery voltage  
decreases  
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