Mazda CX-5 Service & Repair Manual: Reduction Gear
Purpose/ Function
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The reduction gear transmits the rotation input from the EPS motor, decreasing the rotation speed and increasing the torque simultaneously.
Construction
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The reduction gear consists of the worm wheel located on the steering column main shaft and the worm shaft connected to the EPS motor, and is integrated with the steering column.
Operation
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The assist torque generated by the EPS motor is transmitted to the worm wheel via the worm shaft drives the steering column main shaft.
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The assist torque from the EPS motor is amplified by the reduction ratio (20.33:1) between the worm shaft and worm wheel, and is transmitted to the steering column main shaft.
Primary Gear [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The primary gear transmits the drive force converted by the 3-piece planetary
gear to the secondary gear.
Construction
The primary gear is engaged with the fron ...
Secondary Gear [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The secondary gear transmits the drive force from the primary gear to the
output gear.
Construction
The secondary gear is engaged with the output gear and rotat ...
Other materials:
Power Brake Unit
Purpose/Function
A 9.8-inch, single diaphragm type power brake unit has been adopted, achieving
compatibility between high braking performance and excellent brake feeling.
Construction
The power brake unit cannot be disassembled. Therefore, if there is any malfunction
in th ...
Tcs Control
Outline
The TCS control actuates torque reduction through engine control, as well
as using brake control to control traction.
NOTE:
Engine control: Engine output is lowered by fuel cut and ignition timing
control to reduce the traction, preventing driving wheel slip.
...
Crankshaft Position (CKP) Sensor Removal/Installation
CAUTION:
When foreign material such as an iron chip is on the CKP sensor, it can cause
abnormal output from the sensor because of flux turbulence and adversely affect
the engine control. Be sure there is no foreign material on the CKP sensor when
replacing.
Do not assemble t ...
