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Electronics & Test

Safety, Powertrain Will Drive Need for Automotive Semiconductors

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Rob Spiegel
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Safety and light weight cars
Rob Spiegel   12/3/2012 10:28:09 PM
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In order to reach the upcoming CAFE standards, cars will be smaller and they will be made of lighter materials. Safety devices via electronic systems may help consumers gain confidence in smaller, lighter cars.

ttemple
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Re: Safety through MORE electronics?
ttemple   12/4/2012 8:34:11 AM
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William K.

If you have antilock brakes, it is worth experimenting with them and understanding how they work under different conditions.

Almost all antilock brakes do turn off by pumping the brake pedal.  If you are in a situation where you don't want antilocks to "work", pump the brakes quickly yourself, then do whatever you want.  This will turn off most antilock brakes.

Pressing the brakes (not pumping them) is the proper way to stop with antilock brakes.  This allows the ABS system to start pulsating if wheel lock occurs on one or more wheels.

 

Charles Murray
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Re: Safety through MORE electronics?
Charles Murray   12/4/2012 6:55:33 PM
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William K: It surprised me last December when the National Transportation Safety Board called for a law that would prevent phone usage by drivers, and the response was so negative. It wasn't the electronics manufacturers weighing in, but the consumers. They were writing to newspapers and calling radio talk shows to make their case of the need for cell phones in the car. Unfortunately, it seems that drivers, especially younger ones, just can't put their phones down.

Charles Murray
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Re: Safety and light weight cars
Charles Murray   12/4/2012 6:58:21 PM
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I agree, Rob. Electronic safety systems will have a positive effect. It's been said that approximately 90% of accidents are caused by some kind of driver error.

Rob Spiegel
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Re: Safety and light weight cars
Rob Spiegel   12/4/2012 7:44:04 PM
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That stat sounds about right, Chuck. Yet, if you're not driving a big SUV, and you get hit by a big SUV, your chances of injury are elevated. Any electronic devices that can help ameliorate this situation would be very helpful.

William K.
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Re: Safety and light weight cars
William K.   12/4/2012 8:44:09 PM
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Yes, it is true that most of the accidents are caused by driver error, and the main driver error is not paying enough attention to driving. Probably 80% of all of the accidents are caused by inadequate concentration on the driving task, which of course willm indeed lead to errors in actions. When the radios only had 6 buttons to select stations drivers were much less distracted then when it takes several button selections to get a specific station. But the complex radios sell for a whole lot more than the old ones, so the profit is much larger. So probably radios won't get any less complex, although more controls will go to the back side of the steering wheel. This allows tuning without looking but the distraction is just as great. The problem is in the break in attention, not in the time looking at things. At least some of the times that is the problem. So removing the need to look at things is only a small partial solution.

jmiller
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Re: Programmers deciding safety
jmiller   12/31/2012 11:00:41 AM
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I think the key is to have the computers help the operator to make decisions faster, with greater information.  Being sure not to have the computer make the final decision.  Because occasionally all of the data may point one direction while a human can decide that is still the best course.  What would have happened in New York if the computer had tried to get to the runway rather than that pilot putting the plane down in the Potomic.  Possibly a very large disaster.

Charles Murray
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Re: Safety and light weight cars
Charles Murray   1/17/2013 6:38:29 PM
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The good news is that we are reaching that point very quickly. The three main pieces of the active safety puzzle -- adaptive cruise control, lanekeeping and crash avoidance -- are already in use.

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