Technical Data; How It Works - Bosch eBike ABS BAS3311 Originalbetriebsanleitung

(6) Sensor disc
a) The attachment position may vary depending on the eBike man-
ufacturer.

Technical data

ABS
Product code
Operating temperature
Storage temperature
Protection rating
Weight, approx.
Note: For a description of the brakes and how they function,
please refer to the instructions provided by the brake manu-
facturer.

How it works

When the front-wheel brake is operated, the ABS function
uses the wheel speed sensors on the front and rear wheels
to identify the tendency of the wheel to block and stop turn-
ing and limits this by decreasing the braking pressure and
thereby stabilising the eBike.
Once the eBike has been stabilised, precise increases in
braking pressure bring the front wheel back up to the locking
limit. This causes the lever to move a small distance towards
the handlebars with every braking impulse. If the front wheel
is tending to lock again, the pressure is reduced as before.
This process is repeated in order to keep the front wheel at
the grip limit at all times and therefore optimise exploitation
of the coefficient of friction between the tyres and the
ground.
A certain degree of pulsing or vibrating in the brake lever is
considered normal and can be expected during operation of
the ABS system.
The ABS function is ended when one of the following hap-
pens:
– The hydraulic accumulator in the ABS control unit is full.
– The eBike comes to a stop.
– The rider releases the brake.
Due to the way the system operates, the ABS can only step
in from a minimum speed of 5 km/h.
In addition to the ABS function, a system has been integ-
rated that detects when the rear wheel lifts off the ground
during heavy braking. This means that, within certain limits,
forward pitchover can be counteracted during very hard
braking manoeuvres.
Fitting
The anti-lock braking system is fully assembled by the manu-
facturer and must not be modified.
Warning! If you would like to attach other accessories to the
handlebars, bear in mind that the handlebars must be able
to turn freely at least 60° to either side from the centre posi-
tion. Steering limiters may need to be fitted.
Bosch eBike Systems
BAS3311
BAS3321
°C –5 to +40
°C +10 to +40
IP55
g 215
Operation
It is not permitted to attach additional holders to the
u
fork, e.g. for panniers, in conjunction with an ABS.
Before every journey
Check to ensure that the ABS indicator light is working cor-
rectly on the display and/or operating unit whenever you
switch the eBike on. You can find more information about
this in the section entitled (see "ABS indicator light",
page English – 3).
Please check the condition and roadworthiness of the eBike
before every journey. It is the eBike rider's responsibility to
check the eBike is in perfect working order and fully road-
worthy before every journey. Using the eBike with known
faults increases the risk of injury to the rider.
Always check to ensure that the front- and rear-wheel brakes
are working correctly before setting off.
Check to ensure that the thickness of the brake pads and the
brake discs meets the manufacturer's specifications before
setting off.
Check the ABS control unit is fitted securely to the fork.
Before the first journey
Familiarise yourself with how the brakes and ABS work and
how they respond when you actuate them, for example by
practising your braking technique away from busy roads.
The braking power can change over time and a running-in
period may be necessary when the brakes are new or when
the brake pads have been replaced. For more information
about the braking system, refer to the brake manufacturer's
instruction manual.
During the journey
Adapt your riding style to the present riding situation, the
road conditions and your cycling abilities.
Please be aware that the ABS may increase your braking dis-
tance.
On slippery surfaces, the tyres skid more easily and there is
a greater risk of falling over. You should therefore reduce
your speed, applying the brakes in good time using a steady
pressure.
ABS indicator light
The ABS indicator light must come on after starting the
eBike and must go out again once you start riding at a speed
of approx. 5 km/h.
If the indicator light does not go out once you have started
riding or comes on while riding, this means that there is a
fault with the ABS or there is a shutdown of the ABS func-
tionality indicated by the user. If a display or on-board com-
puter is connected, you will also be shown an error code on
this. You can also view a saved error code on the eBike
Flow app. This means the ABS is no longer active. The brake
system will continue working, simply without the control
provided by the ABS.
English – 3
0 275 008 3AS | (23.03.2023)