Toyota 7FBEF 15, Service Manual

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Motor operation principle
Right-hand screw rule and Fleming's rule are to be explained here before explanation on the motor
operation principle.
1. Right-hand screw rule
Raise the thumb of the right hand with other fingers
folded. When the thumb is placed in the current
flowing direction in this state, the magnetic field is
generated vertically to the thumb or in the direction of
the folded fingers.
2. Fleming's right-hand rule
Place a linear substance in freely movable state on a
fixed material as shown at right. If the linear
substance is moved in the illustrated direction when
the magnetic field is generated as illustrated, an emf
current is generated in the illustrated direction.
3. Fleming's left-hand rule
Place a linear substance in freely movable state on a
fixed material as shown at right. If a current flows in
the fixed material when the magnetic field is
generated as illustrated, a force is applied to the linear
substance in the illustrated direction.
Magnetic
field
Magnetic
field
Direction of
current
Direction of
current
Magnetic
field
Direction of
Magnetic field
Direction of
motion
Direction of
current
Direction of
current
Direction of
motion
Magnetic field
Magnetic
field
Magnetic field
Direction of force
Direction of
force
Direction of
Magnetic field
Direction of
current
Direction of
current