question about cars with auto braking systems

Page may contain affiliate links. Please see terms for details.

Levo-Lon

Guru
As far as i know its a distance thing..ie if the sensor picks up an object that the car is closing on too fast it just applies the brakes.

son in laws top of the range volve does all this and puts hazard lights on to when you brake hard.
Self parks and has front and rear sensors and cameras ffs ,id stay in bed and let the car go to work..lol
most will just turn the systems off.
 

midlife

Legendary Member
AFAIK the sensors point forward and the brake is applied by the onboard computer to try and avoid collisions with the front of the car. Cars can still follow close and pass close .......

Shaun
 

Globalti

Legendary Member
It's a fairly tightly-targeted radar that picks up the car in front allowing you to set the cruise control and just steer while the car does the braking and acceleration. It's not as clever as a human though because it can't see what's happening ahead of the car in front and anticipate, so you tend to get some fairly heavy braking. During normal driving it also sounds a warning if you're approaching the car in front and haven't started braking, though I haven't yet tested whether it actually emergency brakes or not.
 
Last edited:
OP
OP
buggi

buggi

Bird Saviour
Location
Solihull
I wondered if it would stop cars trying to squeeze through. I saw something on a Jaguar Landover link that showed it picks up cyclists in the peripheral so I wondered if it would go some way to stopping that behaviour, eg if they tried to squeeze thro at bollards.
 

subaqua

What’s the point
Location
Leytonstone
As far as i know its a distance thing..ie if the sensor picks up an object that the car is closing on too fast it just applies the brakes.

son in laws top of the range volve does all this and puts hazard lights on to when you brake hard.
Self parks and has front and rear sensors and cameras ffs ,id stay in bed and let the car go to work..lol
most will just turn the systems off.

It's a PITA to turn off some of the stuff as buried deep in menus.

Wifey mid range 2013 Volvo has city safe braking which means at less than 30 If she sneezes and misses a brake light in front the car stops. It is similar to the sensors on the active cruise control ( adjusts speed for traffic speed) . It is good but if you are a clutch coaster it doesn't work .

My 2009 Volvo puts hazard on on very very hard braking . On normal hard braking it flashes tail lights as a warning.

Never had to use the city safe for real . Only tested it at the dealers with the foam cones .
 

screenman

Squire
Some work When reversing. Which I found out rather scarily whilst reversing a customer's car down my driveway.
 

biggs682

Itching to get back on my bike's
Location
Northamptonshire
can you imagine it in 20 years time on the 2nd hand car forecort
 

vernon

Harder than Ronnie Pickering
Location
Meanwood, Leeds
Scary to think someone can get used to it and then get in a car without it :sad:

In which case they shouldn't be driving. Observant and alert drivers ordinarily don't need collision avoidance systems nor should they be relying on them to maintain a safe distance between them and the car in front.

It's a system of last resort I.e. it intervenes when the unexpected happens and the driver has not responded appropriately.
 
OP
OP
buggi

buggi

Bird Saviour
Location
Solihull
In which case they shouldn't be driving. Observant and alert drivers ordinarily don't need collision avoidance systems nor should they be relying on them to maintain a safe distance between them and the car in front.

It's a system of last resort I.e. it intervenes when the unexpected happens and the driver has not responded appropriately.
I'm not sure all drivers understand that :sad:
 

Profpointy

Legendary Member
are better brakes a safety aid, or an aid to going faster? discuss.

To be honest I think it's a bit of both.
 
Top Bottom