Bosch KETTLER Traveller E-Silver 7 RT Manual page 23

BOSCH ABS
The rear wheel brake function does not depend on
the anti-blocking system (ABS) functioning
correctly.
When the brakes are applied, the ABS function
detects critical slippage thanks to the wheel speed
sensors on the front and rear wheels. The ABS
limits slippage on the front wheel by reducing
brake pressure there, thus stabilising the wheel.
Once the wheel has been stabilised, the wheel is
brought to the blocking limit by building up
pressure selectively.
If the wheel blocks again, the pressure is reduced
again. This process is repeated to keep the wheel
at its limit of traction, thus making optimum use of
the coefficient of friction between the tyres and the
road surface.
The ABS stops when one of the following events
occurs:
• The buffer chamber in the ABS control unit is filled
completely.
• The pedelec is stationary.
• The rider releases the brake.
Besides slippage, the ABS also detects when the
rear wheel is raised during full braking. The ABS
thus counteracts a flip-over during extremely hard
braking manoeuvres.
If the battery is low, the ABS deactivates the motor
assistance first. However, the electric drive
system, including the display, lighting and ABS,
will remain active until the battery is empty. The
electric drive system the ABS will not switch off
until the battery has almost fully discharged. The
brake system itself remains functional. The ABS is
not active if there is no battery on the pedelec or
the battery is empty.
The indicator lamp lights up for about 5 seconds
before the system switches off completely. The
ABS indicator lamp will go out if the ABS is
unavailable.
MY21K01 - 32_1.0_24.09.2020
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