Volvo Intellisafe also known as City Safety encompasses all of the Volvo technologies that exist to promote safe city driving, up to a speed of 31mph (depending on the City Safety model and year).
City Safety makes use of the camera, laser and radar fitted behind the windscreen and in front of the mirror as well as the radar on the front grille and sensors around your Volvo.
This system is designed to warn drivers of a possible collision, alerting the driver early enough so they can react to minimise or avoid the impact. Using a radar technology to track potential danger, lights are flashed upwards onto the windscren in the driver's eye line as well as a beeping sound warning the driver.
When the driver fails or is too slow to react, the auto brake system is deployed at 50% and as the object in front gets closer, full auto brake is activated. This brings the vehicle to a complete stop. However, depending on the speed and extra factors, the vehicle can only substantially slow down in order to minimise the impact and harm caused to the vehicle and occupants.
This is used to monitor cars ahead moving in the same. When the car in front reduces speed and gets too close, the driver is warned by a set of LEDs illuminating progressively as the distance descreases. It uses the radar and camera to keep track of the ahead vehicle and the safe distance can be set by the driver.
The camera and radar work together to detect pedestrians on the road and at speeds of up to 50mph.
The driver is warned of a possible collision and if the pedestrian is too close, the auto brake is applied.
Using the information transmitted by the forward facing camera, the on board computer calculates the position of the car in relation to the road markings. If the car crosses the left or right hand side markings unintentionally (e.g. if the indicator is not being used and no lane change is intended), this is cue to the car's computer and a sound alert beeps.
BLIS have both side radars working to detect objects approaching from either side when, for instance, the drivers wishes to change lanes and such objects are not detectable as they are within the driver's blind spot. A light and beep is used to alert of such dangers.
An extended function of the LDW, it is designed to reduce the risk of accidents if the car unintentionally approaches a side marking. The car is steered back into its lane, which can be felt by the driver as a slight resistance on the steering wheel. (This should NEVER be used as an auto drive function.)
CTA uses the same method as BLIS to alert drivers about pedestrians, bicycles and vehicles when reversing out of a concealed place, such as a busy supermarket parking spot. CTA is automatically activated when the reverse gear is engaged and it uses the same warnings as BLIS.
As an extension to the LDW, the vehicle makes use of the forward camera to understand driving patterns regarding the lane positioning and stability. The computer will then rate the current driving pattern giving a score of up to 5. If the score is low, the driver will be warned and advised to consider a stop and rest.
Volvo's world-first pedestrian airbag technology was launched in 2012 and some Volvo models include it as an option. This system is designed to be activated at speeds of 12mph to 31mph (20 to 50kmh) and when detecting a collision with objects with similar properties to those of people's legs.
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Contact Sentinel to find out what features your Volvo is equipped with and others that you can have retrofit.
* Please note that the City Safety package features vary depending on the model and year of your Volvo