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S60 & V60 '11-'18 / XC60 '09-'17 General Forum for the P3-platform 60-series models |
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XC 60 FeaturesViews : 2666 Replies : 25Users Viewing This Thread : |
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Mar 19th, 2010, 12:47 | #21 |
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Mar 19th, 2010, 12:55 | #22 |
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Mar 19th, 2010, 18:53 | #23 | |
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Quote:
As has been said by others - treat anything that Clarkson says not with a pinch of salt, more a bucket or lorry load |
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Mar 19th, 2010, 22:30 | #24 |
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Even the presenters of the 5th Gear clip, that purportedly shows that the City Safety system works, say it only works if you are stupid enough to not know that your car is going to crash.
It is laughable that the system assumes that the driver is in total control if he is steering or braking. How about the Electronic Stability Control and ABS brakes, do these also assume that the driver is in control if he is steering and braking? Of course not. We need these driver aids to help sort out problems that the driver has created. Similarly for City Safety, it needs to override the drivers effort as a last resort, irrespective of what the driver is doing, for it to be of any use. |
Mar 20th, 2010, 10:09 | #25 |
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The reason for this is that it prevents the system emergency breaking in the wrong situation.
for example you are parking, and swing the car past an object at 10mph - a bollard or something. If it broke for you everytime you went near an object the system would be rediculous. It is only designed to interfere when the exact situation they describe occurs - when coasting in traffic and not stopping for the car in front. typically there are no driver inputs in that scenario. The problem here is that you ar all considering the situation where you might want it to work and it doesn't. But yo actually need to think about all the situations where it would be dangerous or annoying if it stepped it when it shouldn't. |
Mar 20th, 2010, 13:00 | #26 |
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Agreed indeed. Consider some of what we have discused in this thread if applied to Adaptive Cruise conrtrol, Distance Alert or Collision Warning, all of which take place at high speed. With these systems there can be no simple Black or White scenarios, an area of grey is not only inevitable but is an absolute necessity.
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