sensor VOLVO V60 2014 Owner's Guide

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* Option/accessory, for more information, see Introduction.205
City Safety™
City Safety™ is a function for helping the driver to avoid a collision when driving inqueues, amongst other things, when changesin the traffic ahead, combined with a lapse inattention, could lead to an incident. The City Safety™ function is active at speeds under 50 km/h and it helps the driver by auto-matically braking the car in the event of immi-nent risk of collision with vehicles in front,should the driver not react in time by brakingand/or steering away. City Safety™ is activated in situations where the driver should have started braking earlier,which is why it cannot help the driver in everysituation. City Safety™ is designed to be activated as late as possible in order to avoid unnecessaryintervention. City Safety™ must not be used as an excuse for the driver to change his/her driving style. Ifthe driver solely relies on City Safety™ to dothe braking, there will be a collision sooner orlater. The driver or passengers normally only notice City Safety™ if a situation arises where thecar is extremely close to being in a collision. If the car is also equipped with Collision Warning with Auto Brake (p. 212)* these twosystems complement each other.IMPORTANT
Maintenance and replacement of City Safety™ components must only be per-formed by a workshop - an authorisedVolvo workshop is recommended.
WARNING
City Safety™ does not engage in all driv- ing situations or traffic, weather or roadconditions. City Safety™ does not react to vehicles driving in a different direction from the car,to small vehicles and motorcycles or tohumans and animals. City Safety™ can prevent collision at a speed difference of less than 15 km/h - ata higher speed difference, it is only possi-ble to reduce collision speed. In order toobtain full brake function, the driver mustdepress the brake pedal. Never wait for City Safety™ to engage. The driver always bears responsibility formaintaining the proper distance andspeed.
Related information
• City Safety™ - limitations (p. 207)
• City Safety™ - function (p. 205)
• City Safety™ - operation (p. 206)
• City Safety™ - laser sensor (p. 209)
• City Safety™ - symbols and messages (p. 211)
City Safety™ - function
City Safety™ detects the traffic in front of the car with a laser sensor fitted in the top edgeof the windscreen. If there is an imminent riskof collision, City Safety™ will automaticallybrake the car, which may be experienced assudden braking.
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Laser sensor transmitter and receiver window13
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If the speed difference is 4-15 km/h in relation to the vehicle in front then City Safety™ cancompletely prevent a collision. City Safety™ activates a short, sharp braking and stops the car in normal circumstances,just behind the vehicle in front. For most dri-vers this is well outside normal driving styleand may be experienced as being uncomfort-able. If the difference in speed between the vehi- cles is greater than 15 km/h then CitySafety™ may not prevent the collision on itsown. To obtain full brake force, the drivermust depress the brake pedal. This couldthen make it possible to prevent a collision,even at speed differences above 15 km/h. When the function is activated and brakes,the combined instrument panel shows a textmessage to the effect that the function is/hasbeen active.
NOTE
When City Safety™ brakes, the brake lights come on.
Related information
•
City Safety™ - limitations (p. 207)
• City Safety™ (p. 205)
• City Safety™ - operation (p. 206)
• City Safety™ - laser sensor (p. 209)
• City Safety™ - symbols and messages (p. 211)
City Safety™ - operation
City Safety™ is a function for helping the driver to avoid a collision when driving inqueues, amongst other things, when changesin the traffic ahead, combined with a lapse inattention, could lead to an incident.
On and Off
NOTE
The City Safety™ function is always switched on after the engine has beenstarted via key position
I and II (p. 70).
In certain situations, it may advisable to disa- ble City Safety™, e.g. where leafy branchescould sweep over the bonnet and/or wind-screen. After starting the engine City Safety™ can be deactivated as follows: The function can beactivated/deactivated in the menu system MY
CAR . For a description of the menu system,
see MY CAR (p. 103). However, the function will be enabled the next time the engine is started, regardless ofwhether the system was enabled or disabledwhen the engine was switched off.
13 NOTE: The illustration is schematic - details may vary depending on car model.
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WARNING
The laser sensor also transmits laser light when City Safety™ is disabled manually.
Related information
•City Safety™ (p. 205)
• City Safety™ - limitations (p. 207)
• City Safety™ - function (p. 205)
• City Safety™ - laser sensor (p. 209)
• City Safety™ - symbols and messages (p. 211)
• MY CAR (p. 103)
City Safety™ - limitations
The sensor in City Safety™ is designed to detect cars and other large vehicles in front ofthe car irrespective of whether it is day ornight. However, the function has a number oflimitations. However, the sensor has limitations and has poorer functionality - or none at all - in e.g.heavy snowfall or rain, dense fog, duststorms or white-out situations. Mist, dirt, iceor snow on the windscreen may disrupt thefunction. Low-hanging objects, e.g. a flag/pennant for projecting load, or accessories such as auxili-ary lamps and bull bars that are higher thanthe bonnet limit the function. The laser beam from the sensor in City Safety™ measures how the light is reflected.The sensor cannot detect objects with lowreflection capacity. The rear sections of thevehicle generally reflect the light sufficientlythanks to the number plate and rear lightreflectors. On slippery road surfaces the braking dis- tance is extended, which may reduce thecapacity of City Safety™ to avoid a collision.In such situations the ABS and DSTC sys-tems will provide best possible braking forcewith maintained stability. When your own car is reversing, City Safety™ is temporarily deactivated. City Safety™ is not activated at low speeds -under 4 km/h, which is why the system doesnot intervene in situations where a vehicle infront is being approached very slowly, e.g.when parking. Driver commands are always prioritised, which is why City Safety™ does not intervenein situations where the driver is steering oraccelerating in a clear manner, even if a colli-sion is unavoidable. When City Safety™ has prevented a collision with a stationary object the car remains sta-tionary for a maximum of 1.5 seconds. If thecar is braked for a vehicle in front that is mov-ing, then speed is reduced to the same speedas that maintained by the vehicle in front. On a car with manual gearbox the engine stops when City Safety™ has stopped thecar, unless the driver manages to depress theclutch pedal beforehand.
NOTE
•
Keep the windscreen surface in front of the laser sensor free from ice, snowand dirt (see the illustration for sensorlocation (p. 205)).
• Do not affix or mount anything on thewindscreen in front of the laser sensor
• Remove ice and snow from the bonnet- snow and ice must not exceed aheight of 5 cm.
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Fault tracing and action
If the message Windscreen Sensors
blocked is shown in the combined instru-
ment panel it indicates that the laser sensor is blocked and cannot detect vehicles in front ofthe car. This means in turn that City Safety™is not operational. The
Windscreen Sensors blocked message
is not shown for all situations in which the laser sensor is blocked. The driver musttherefore be diligent about keeping the wind-screen and area in front of the laser sensorclean. The following table presents possible causes for the message being shown, along withsuggestions for appropriate action.
CauseAction
The windscreen sur- face in front of thelaser sensor is dirty orcovered with ice orsnow.Clean the wind- screen surface infront of the sensorfrom dirt, ice andsnow.
The laser sensor field of vision is blocked.Remove the blocking object.
IMPORTANT
If there are cracks, scratches or stone chips in the windscreen in front of either ofthe laser sensor's "windows" and theycover a surface of approx. 0.5 x 3.0 mm(or larger), then a workshop must be con-tacted for replacement of the windscreen(see the illustration for sensor location (p.205)) - an authorised Volvo workshop isrecommended. Failure to take action may result in reduced performance for City Safety™. To avoid the risk of failed, deficient or reduced operation for City Safety™, thefollowing also applies:
• Volvo recommends that you do
not
repair cracks, scratches or stone chips in the area in front of the laser sensor -instead, the whole windscreen shouldbe replaced.
• Before replacing a windscreen, con-tact an authorised Volvo workshop toverify that the correct windscreen isordered and fitted.
• The same type or Volvo-approvedwindscreen wipers must be fitted dur-ing replacement.
Related information
•
City Safety™ (p. 205)
• City Safety™ - function (p. 205)
• City Safety™ - operation (p. 206) •
City Safety™ - laser sensor (p. 209)
• City Safety™ - symbols and messages (p. 211)
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City Safety™ - laser sensor
The City Safety™ function includes a sensor which transmits laser light (see illustration (p.205) for sensor location). Contact a qualifiedworkshop in the event of a fault or if the lasersensor needs servicing - an authorised Volvoworkshop is recommended. It is absolutelyessential to follow the prescribed instructionswhen handling the laser sensor. The following two labels relate to the laser sensor:
The upper label in the figure describes the laser beam's classification:• Laser radiation - Do not look into the laser beam with optical instruments -Class 1M laser product.
The lower label in the figure describes the laser beam's physical data: •
IEC 60825-1:1993 + A2:2001. Complies with FDA (U.S. Food Administration)standards for laser product design withthe exception of deviations in accordancewith "Laser Notice No. 50" from26 July 2001.
Radiation data for the laser sensorThe following table specifies the laser sen- sor's physical data.
Maximum pulse energy2.64
µJ
Maximum average output45 mW
Pulse duration33 ns
Divergence (horizontal x verti- cal)28° × 12°
WARNING
If any of these instructions are not followed then there is a risk of eye injury!
• Never look into the laser sensor (which emits spreading invisible laser radia-tion) at a distance of 100 mm or closerwith magnifying optics such as a mag-nifying glass, microscope, lens or simi-lar optical instruments.
• Testing, repair, removal, adjustmentand/or replacement of the laser sen-sor's spare parts must only be carriedout by a qualified workshop - we rec-ommend an authorised Volvo work-shop.
• To avoid exposure to harmful radia-tion, do not carry out any readjust-ments or maintenance other thanthose specified here.
• The repairer must follow speciallydrawn up workshop information for thelaser sensor.
• Do not remove the laser sensor (thisincludes removing the lenses). Aremoved laser sensor does not fulfillaser class 3B as per standard IEC60825-1. Laser class 3B is not eye-safe and therefore entails a risk ofinjury.
• The laser sensor's connector must beunplugged before removal from thewindscreen.
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•The laser sensor must be fitted onto the windscreen before the sensor'sconnector is plugged in.
• The laser sensor transmits a laser lightwhen the remote control key is in keyposition
II (p. 70) even if the engine is
switched off.
Related information
• City Safety™ (p. 205)
• City Safety™ - limitations (p. 207)
• City Safety™ - function (p. 205)
• City Safety™ - operation (p. 206)
• City Safety™ - symbols and messages (p. 211)
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City Safety™ - symbols and messages
In conjunction with automatic braking by the City Safety™ (p. 205) system, one or moresymbols may illuminate in the combinedinstrument panel and a text message may beshown. A text message can be acknowledged
by briefly pressing the
OK button on the
direction indicator stalk.
SymbolMessageMeaning/Action
Auto braking by City SafetyCity Safety™ is braking or has automatically braked.
Windscreen Sensors blockedThe laser sensor is temporarily non-operational because something is blocking it. • Remove the object blocking the sensor and/or clean the windscreen in front of the sensor.
Read about laser sensor limitations (p. 207).
City Safety Service requiredCity Safety™ is not operational.
• Visit a workshop if the message remains - an authorised Volvo workshop is recommended.
Related information
• City Safety™ (p. 205)
• City Safety™ - limitations (p. 207)
• City Safety™ - function (p. 205)
• City Safety™ - operation (p. 206)
• City Safety™ - laser sensor (p. 209)
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* Option/accessory, for more information, see Introduction.213
Collision warning system* - function
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Function overview 15
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Audio-visual warning signal in the event of a collision risk.
Radar sensor 16
Camera sensor
Collision Warning with Auto Brake executes three steps in the following order: 1. Collision warning
2. Brake support 16 3.
Auto Brake 16
The collision warning system and City Safety™ (p. 205) complement each other.
1 - Collision warningThe driver is first warned of a potentiallyimminent collision. The collision warning system detects pedes- trians, stationary vehicles as well as vehiclesdriving in the same direction in front of thecar. If there is a risk of collision with a pedestrian or a vehicle then the driver's attention isattracted with a flashing red warning signal (1)and an acoustic signal.
2 - Brake support 16If the risk of collision has increased furtherafter the collision warning then the brake sup-port is activated. This means that the brake system is prepared for rapid braking by applying the brakeslightly, which may feel like a slight jolt. If the brake pedal is depressed sufficiently quickly then full brake function is imple-mented. Brake support also reinforces the driver's braking if the system considers that the brak-ing is not sufficient to avoid a collision.
3 - Auto Brake
16The automatic brake function is activatedlast. If in this situation the driver has not yet started to take evasive action and the risk ofcollision is imminent then the automatic brak-ing function is deployed - this takes placeirrespective of whether or not the driverbrakes. Braking then takes place with fullbrake force in order to reduce collision speed,or with limited brake force if it is sufficient toavoid a collision. For cyclists, the warning andfull brake intervention may come very late orsimultaneously.
15
NOTE: The illustration is schematic - details may vary depending on car model.
16 With system Level 2 only.
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216* Option/accessory, for more information, see Introduction.
Collision warning system* - detection of pedestrians
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection.
Optimal examples of what the system regards as pedestrians with clear body contours.
Optimal performance of the system requires that the system function that detects pedes-trians receives as unambiguous informationas possible about the contours of the body -this implies the opportunity to identify thehead, arms, shoulders, legs, upper and lowerbody combined with a normal human patternof movement. If large parts of the body are not visible to thecamera then the system cannot detect apedestrian.
• In order for a pedestrian to be detected he/she must appear full-length and havea height of at least 80 cm.
• The system cannot detect a pedestriancarrying larger items.
• The camera sensor's ability to see pedes-trians at dusk and dawn is limited - justlike the human eye.
• The camera sensor's capacity to detectpedestrians is deactivated when driving indarkness and tunnels - even when street-lights are lit.
WARNING
Collision Warning with Auto Brake & Pedestrian Detection is an assistance tool. This function cannot detect all pedestrians in all situations and it cannot see e.g. parti-ally obscured pedestrians, people in cloth-ing that hides the contours of the body orpedestrians shorter than 80 cm.
• The driver is always responsible that the vehicle is driven properly and witha safety distance adapted to thespeed.
Related information
•
Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - operation (p.217)
• Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
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218* Option/accessory, for more information, see Introduction.
Maintenance
Camera and radar sensor 18
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For the sensors to work correctly, they must be kept clear of dirt, ice and snow, and becleaned regularly with water and car sham-poo.
NOTE
Dirt, ice and snow covering the sensors will reduce their function and may preventmeasurement.
Related information
• Collision warning system* (p. 212)
• Collision warning system* - function (p. 213)
• Collision warning system* - detection ofpedestrians (p. 216) •
Collision warning system* - cyclist detec-tion (p. 214)
• Collision warning system* - general limita-tions (p. 218)
• Collision warning system* - camera sen-sor limitations (p. 220)
• Collision warning system* - symbols andmessages (p. 222)
Collision warning system* - general limitations
"Collision Warning with Auto Brake and Cyclist and Pedestrian Detection" is an aid toassist the driver when there is a risk of collid-ing with a pedestrian, bicycle or vehicle infront that are stationary or moving in the samedirection. The function has certain limitations - for example, it is not active until approx. 4 km/h.. The collision warning system's visual warning signal (see (1) in the illustration (p. 213)) maybe difficult to notice in the event of strongsunlight, reflections, when sunglasses arebeing worn or if the driver is not lookingstraight ahead. The warning sound shouldtherefore always be activated. On slippery road surfaces the braking dis- tance is extended, which may reduce thecapacity to avoid a collision. In such situa-tions the ABS and DSTC systems will providebest possible braking force with maintainedstability.
18
NOTE: The illustration is schematic - details may vary depending on car model.
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