Yamaha FZ1-N 2007 Service Manual page 20

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
ABS block diagram
1. Rear brake master cylinder
2. Hydraulic unit
3. Hydraulic pump
4. ABS motor
5. Buffer chamber
6. Hydraulic control valve
7. Front brake master cylinder
EAS5D01002
ABS COMPONENT FUNCTIONS
Wheel sensors and wheel sensor rotors
Wheel sensors "1" detect the wheel rotation speed and transmit the wheel rotation signal to the ABS
ECU.
Each wheel sensor is composed of a permanent magnet and a hall IC. The wheel sensors are
installed in the sensor housing for each wheel.
Sensor rotor "2" is pressed in the inner side of the front wheel hub and rotate with the wheel.
Sensor rotor "3" is install on the rear hub and rotate with the wheel. The sensor rotors have 42/front,
44/rear serrations inside and are installed close to the wheel sensors. As the sensor rotor rotates,
the hall element in the hall IC installed in the wheel sensor generates the voltage which is propor-
tional to the magnetic flux density, and the generated voltage is processed for waveform shaping in
the hall IC to output.
The ABS ECU calculates the wheel rotation speed by detecting the frequency of this voltage.
email: info@motomatrix.co.uk
8. Rear brake caliper
9. Front brake caliper
10.ABS ECU
11.Rear wheel sensor
12.Front wheel sensor
13.ABS warning light
1-11
FEATURES