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Volvo recalls all of its 72K EX30 cars due to software bug that obscures speedometer
(www.theregister.com)
this post was submitted on 10 Jun 2024
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Everything is integrated into the computer network for every function… so if you want an old style analog speedometer how analog do you go? Cable on the gearbox (no software, no bugs, no electronics if you choose a mechanical gauge)? Separate sensor near the transmission (basic analog electronics)? Analog readout from the multiplexed network on an electronic gauge?
Cars are already incredibly complicated and expensive to meet current legal requirements.
I think there’s a reasonable amount of digital that can be incorporated. Going back to my original example, Airbus is fly by wire and very safe. However, there are still analog gauges for the important backup functions, or at least single purpose digital displays such as the ISFD. I don’t think it’s wise to have the multimedia display and speedometer display running off the same device.
I agree, people buy cars like this though, to me modern cars are extremely annoying because of this extreme cost-cutting without any thought put into it. They even lack basic functions like dimming the gauge lights that were standard in the 1980s on cheap cars, or turning off a screen completely and still having the steering wheel controls for the radio… turning off ESP for getting out of slippery places that it gets confused by is also a challenge on a lot of cars.
People have very different priorities from commercial users that need an impeccable safety record and no compromise on reliability, they're buying a steel box on wheels to get from A to B, preferably in a fashionable shape.
If you've ever nearly died because the car decided a reflection was an imminent collision risk and braked hard on the motorway, you know that cars are way worse than Boeing.
I had that almost happen once- it didn't actually brake, but it did the very loud "omg we're gonna die" alert, freaked out my wife & kids. Then there's the fun of fighting with the lane keeping assist when it wants to follow the seams in the concrete rather than the painted lines... Fortunately that "feature" can be disabled.
Extreme cost cutting indeed. Because a second screen with a little cable running to it would cost what.. maybe 50 bucks all installed per car.
It's just weird that this kind of stuff is done.
Next stage just remove all screens and stuff and have the customer use an app on their phone.