What is Forward Collision Warning?
Forward Collision Warning (FCW) is a next generation ADAS aiming respectively to prevent
and/or mitigate frontal
impacts. Thus, for example, a car distance and motion speed in front of it is monitored using the sensor or radar.
When a collision risk is sensed, the system warns the driver with visual, auditory, or haptic cues. Auxiliaries
systems have been integrated with automatic emergency braking to intervene when the driver fails to respond.
FCW tries to decrease rear-end collisions, improving road safety by providing drivers with the appropriate
intervention in cases of imminent accidents. This capability has become standard in a wide variety of current
vehicles due to advances in automated safety.
How Does Forward Collision Warning Work?
Forward Collision Warning function is based on a complex system of sensors and cameras inside a car. These
elements
are constantly scanning the road in front of the vehicle to identify vehicles and objects on the vehicle's
trajectory. The system calculates the relative speed and range of those objects for risk of collision calculation.
If the system predicts a high risk of collision, an alert system is engaged. This will manifest as the following
(depending on the concept of the car model) a visual cue on the dashboard, a sound cue or a shaking vibration of the
steeringwheel or the seat. Therefore, the warning affords the driver an opportunity to respond (e.g., braking or
steering aside from the line of sight).
In increasingly sophisticated systems, if the driver fails to react to the warning, the system could automatically
activate to reduce the impact or prevent the collision from happening. The convergence of FCW with other safety
technologies such as automatic emergency braking is a major step toward smarter vehicle safety technologies .
How To Use Forward Collision Warning
The success of the Forward Collision Warning usefully relies on having an understanding of its capabilities, as well
as its shortcomings, among others. In order to gain all of its benefit, make sure the system is switched on, in your
car's settings. Learn about the kind of alerts that your FCW system outputs, in order to react appropriately when
alerted.
Vehicle maintenance is relatively important to the working of the FCW system. Make sure sensors and cameras are
clean and unencumbered, and that there is no occlusion of the field of view, because occluding the field of view
will impair the system in which it exists, in the case of grasping an object. It is also noted that there might be
some limitations due to rain or fog in the system.
When the Reverse Collision Warning light is on at random, it may be because the system is malfunctioning. This could
be due to sensor occlusion, a system error or a need for service. In such cases, checking your vehicle manual to
find out what it recommends, and taking the vehicle to an expert for diagnosis and fixing — are requirements.
Remember, while FCW adds a layer of safety, it doesn't replace the need for attentive driving and adherence to road
safety practices.
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