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Wagons Volvo XC70 Volvo XC70 Safety Issues
122 messages, Last post on Dec 28, 2008 at 4:26 PM
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Replying to: volvomax (Jun 20, 2006 5:16 pm)
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Replying to: liner (Jun 20, 2006 6:31 pm) Stability control is a yaw program, keeps cars from spinning out. Roll stability keeps cars from flipping over. Anti whiplash seats are seats that in the event of a rear impact will tilt up to 15 degrees limiting the whiplash forces being transmitted to the front seat occupants and reducing the potential for whiplash by 50%. |
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Replying to: volvomax (Jun 21, 2006 10:16 am) Since the Pilot and XC70 (and XC90) have identical 4 star rollover ratings, it would appear that the Honda has better engineering, because it doesn't need a rollover stability program to achive it's rating.
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Replying to: volvomax (Jun 21, 2006 10:16 am) Aside from cutting engine power and applying brakes what does it do to keep the vehicle from flipping over? Does it extend the trainig wheels out to the sides to keep the SUV from flipping over?
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Replying to: stevedebi (Jun 21, 2006 11:00 am) All they do is take the length of the vehicle, its weight and wheelbase and height and come up w/ a formula. No one TRIES to roll a car over and see how it really does.
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Replying to: blueiedgod (Jun 22, 2006 4:04 am) Does it extend the trainig wheels out to the sides to keep the SUV from flipping over? That is usually enough. The system starts w/ a gyro sensor that determines roll angle vs how fast the car is moving forward. If the vehicle is turning left, for instance the roll sensor determines that the car is pitching right too far too fast for the suspension to recover. The system then locks the brake on the LR wheel. The drag on the LR causes the car to return to level and for the rear wheels to break traction for an instant. This action will stop a vehicle from rolling over. No outriggers are necessary.
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Replying to: volvomax (Jun 22, 2006 3:43 pm) Does it extend the trainig wheels out to the sides to keep the SUV from flipping over? That is usually enough. The system starts w/ a gyro sensor that determines roll angle vs how fast the car is moving forward. If the vehicle is turning left, for instance the roll sensor determines that the car is pitching right too far too fast for the suspension to recover. The system then locks the brake on the LR wheel. The drag on the LR causes the car to return to level and for the rear wheels to break traction for an instant. This action will stop a vehicle from rolling over. No outriggers are necessary. Of course I know how VEHICLE STABILITY CONTROL system works. The question I asked was how does Roll-over control system work, that was being touted as vastly different and superior to VSC, and you walked right into it.  In the end it is just a different name for the same system.
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So, if I understand correctly, you want more electronic gizmos on your cars, authorized to brake and steer your cars. But after a certain age, any system will malfunction. Those "safety" systems will kill you when they will become defective !!! The bad sensor, or the rusted grounding, will send the wrong information to the computer, and the damn car will steer by itself, on a sunny day on dry pavement ! Can't you see it ? It's obvious man. No cheap diagnostic system can take into consideration all the possible malfunctions. And they have to be cheap, because these days there are websites dedicated to teach buyers about how to negotiate the car price as close as possible to the car manufacturer bankruptcy limit. On one side you want cheap, on the other side you want the fanciest electronics enabled to brake and steer your cars, as they like. That's a recipe for disaster. You enable a cheap car to kill you. Either leave it expensive, or don't enable it to kill !
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Replying to: blueiedgod (Jun 23, 2006 3:45 am)
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Replying to: calhon (Jun 23, 2006 11:37 am) ESC systems where first developed by Bosch for Mercedes A-class. They all use steering-wheel angle sensor in combination with yaw sensor. Honda's version also has roll-over sensor to deploy curtain air-bag. Please do not post nonsense. Another point here was about boron steel. There is no magic in stronger steel. You can achieve the exact same effect with thicker steel. Please, spare us buzzword filled salesmen talk. The only point is - vehicle engineered paying with attention paid to reinforced occupant cage and crush zones. Honda does it just as well as Volvo, in particular with ACE cars, such as Odyssey.
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