My car’s android unit has some quad core processor , and it instantly boots up and reaches the home screen where as my phone takes almost 30 seconds or a minute to reach the home screen despite having much better hardware.
One reason may be that they’re not actually off when the ignition is off, they’re just asleep like your phone is when the screen is off but it’s still powered on.
That’s exactly it.
The unit does restart about once every week and then goes back to suspend to ram.
You basically will never notice the restart unless you cut off power. And additionally drain all capacitors.
Yeah, I recall the one time I actually saw my head unit restart, it took a minute to boot up.
Among the other things that have been said, Android auto often makes use of some tricks too. Things like hibernation that phones typically do not do (Probably the biggest one right here), Animations to hide loading time, loading some critical, but not latency sensitive services until after the boot. and some other misc service management stuff.
I think the phone just has to do more stuff
Yeah my S23 takes way too long to start up for being the newest tech. It’s stupid.
Lol I too have a Samsung phone…That’s why this question came up in my mind the first place.
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Android Auto or Android Automotive?
The former is basically just a screen your phone is casting to. The latter is a lightweight (stripped down) Android fork designed to boot very quickly and do a couple things very well. It probably never really “turns off” since it still has a 12v connection even when the car is off (why your clock doesn’t reset).
Android on your phone is a much more general purpose operating system that runs on a (much more limited) battery. It isn’t designed to be turned on and off frequently.
There has been a lot of work done in the unix universe to reduce boot times: https://www.e-consystems.com/articles/Product-Design/Linux-Boot-Time-Optimization-Techniques.asp
A lot of it has to do with deferring services not needed immediately till later. The same could be done for Android.
They don’t have as much background software recording everything and phoning home.
Give it time, and they may get there.
Source: I’m just bullshitting. I don’t know jack shit about what runs on a new car. I don’t buy new cars.
But my DeGoogled phone boots really fast, so I might still be right, unfortunately.
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Basically, that kind of is it.
They have less background services overall as well as less hardware to initialise. Probably some other differences as well.
I’m not super familiar with Android Auto, but have worked with other embedded systems that are based on customized OSs. They typically run the bare minimum subset of features to do what they’re designed to do.
It’s also possible they don’t boot every time but just kind of hibernate.
I would bet they have their own battery and use that while the car is off
Hmm. Maybe. Or at least an internal battery to keep it in “sleep/powersave” without draining the car’s battery.
Now I want to tear one down to find out 😆
A phone uses a rechargeable battery.
The car uses a supercharged 5.0 liter Dual OverHead Camshaft 8-cylinder engine running on 93 Octane.
Which one has more power, oorrgh??
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1 upvote = more power, Al
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1 downvote = more I don’t think so, Tim
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