Steering -> Torque Sensor for Your Toyota Alphard Van First Generation (2002-2008)

Model Outline  
for Technician  
Engine  
Chassis  
Body  
Body Electrical  
Steering  
Torque Sensor  
Torque sensor using two hall ICs consists of a  
multipole magnet mounted on the input shaft, and a  
yoke mounted on the output shaft  
[Torque Sensor]  
Output Shaft  
Motor  
Input  
Shaft  
Yoke  
Multipole  
Magnet  
Torsion  
Bar  
Torque  
Sensor  
Hall ICs  
Torsion Bar  
Input Shaft  
Wheel Gear  
Output  
Shaft  
Column Shaft  
62  
Model Outline  
for Technician  
Engine  
Chassis  
Body  
Body Electrical  
Steering  
Torque Sensor (detection of twisted angle of torsion  
bar)  
Hall ICs detect the direction of the magnetic flux  
which passes through inside of the yoke  
[When steering turned to Right]  
Magnetic  
Flux  
Input Shaft  
Left Turn  
Right Turn  
(+)  
Hall  
IC1  
Hall  
IC2  
(-)  
Twisted Angle of Torsion Bar (deg)  
Yoke  
: Hall IC1 Signal  
: Hall IC2 Signal  
Output Shaft  
: Neutral Position  
63  
Model Outline  
for Technician  
Engine  
Chassis  
Body  
Body Electrical  
Steering  
Torque Sensor (detection of twisted angle of torsion bar)  
Driven straight: Magnetic flux does not through in yoke  
Turning: Detects the direction of the magnetic flux  
[Driven Straight]  
[Turn to Left]  
[Turn to Right]  
Input Shaft  
Input Shaft  
Input Shaft  
Output Shaft  
Output Shaft  
Output Shaft  
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