Brake assist system for a cyclist on a bicycle

Brake assist system for a cyclist on a bicycle comprising a braking system having a braking member capable of exerting a braking force (FB) on a front wheel of the bicycle by the effect of a force (Fc) applied by the cyclist on a lever, said system comprising:

• a sensor for measuring the angular speed (ω1) of the front wheel of the bicycle, suitable for generating a signal representative of the angular speed of the front wheel;
• an actuator capable of exerting an actuator force (FA), connectable to said braking system of the bicycle such that the actuator force (FA) opposes the force (Fc) applied by the cyclist on the lever, so to reduce the braking force (FB);
• and
• a control module configured for receiving, as an input, the signal representative of the angular speed (ω1) of the front wheel and for determining from this a deceleration (η) of the front wheel, said control module comprising:
• an activating module configured for selectively activating the actuator, so that this selectively exerts said actuator force (FA), and for determining a reference deceleration (ηref) when the actuator is active;
• and
• a controller configured for commanding the actuator, when this is active, based on the error between said reference deceleration (ηref) and said deceleration (η) of the front wheel,
• wherein said actuator is configured such that, when it is connected to the braking system of the bicycle, the actuator force (FA) is never capable of generating a braking force at the front wheel by the braking member.