4 ms·

Am I the only one who doesn't want to buy "all-new redesigned" cars. I won't want an all new redesigned Operating System.

by ape4 5y ago

politician 5y ago
Why? There are far fewer parts in a car than an OS.
- hedora 5y ago
  Modern cars are rolling local area networks that use a fragile real-time network (CAN bus) in addition to 4G bluetooth, and bespoke wireless network protocols. They include many operating systems, and all sorts of other unfathomable complexity.
  - striking 5y ago
    Many cars as far back as 2003, and all cars model year 2008 or newer in the US, use CAN Bus. Moreover, as far as real-time networking goes, CAN is pretty far from fragile.
    - hedora 5y ago
      I agree that it is more reliable than most realtime network protocols, but that’s a pretty low bar. Two of the three cars I’ve had with CAN busses had recalls due to CAN priority inversions. One couldn’t turn the ABS off when the rest of the car shutdown, so it would sometimes drain the battery if parked for more than 6 hours. The newer one gets into a state where the “turn off cruise control” signal gets preempted. The solution is to stand on the brake pedal and force it into neutral. (The transmission control is also on the CAN bus, from what I can tell.). Those two events together put the power train into some sort of panic mode, and it stops applying throttle to the engine. The fact that the network protocol has been around for a while is no reason to trust a first-year redesign of a vehicle platform.
- jagger27 5y ago
  That doesn't really track since cars themselves have multiple operating systems. I don't want a mandatory software update that changes where my rear window defroster button is. I want a button. Is it so much to ask for a 90s BMW interior with a Tesla drive train? I think that's what GP is getting at.
dehrmann 5y ago
No. Redesigned cars are less reliable. https://www.consumerreports.org/car-reliability-owner-satisfaction/to-get-the-most-reliable-new-car-it-pays-to-wait-a1174785565/ https://www.consumerreports.org/car-reliability-owner-satisf... > CR’s proprietary analysis shows that vehicles tend to be most reliable by the final year of any particular model run (typically five to seven years), after many of the bugs have been worked out, and least reliable in the first year of a redesign, when freshly reconfigured and often touted as “all new.”

Am I the only one who doesn't want to buy "all-new redesigned" cars. I won't want an all new redesigned Operating System.

by ape4 5y ago

Am I the only one who doesn't want to buy "all-new redesigned" cars. I won't want an all new redesigned Operating System.

politician 5y ago

Why? There are far fewer parts in a car than an OS.

hedora 5y ago
Modern cars are rolling local area networks that use a fragile real-time network (CAN bus) in addition to 4G bluetooth, and bespoke wireless network protocols. They include many operating systems, and all sorts of other unfathomable complexity.
- striking 5y ago
  Many cars as far back as 2003, and all cars model year 2008 or newer in the US, use CAN Bus. Moreover, as far as real-time networking goes, CAN is pretty far from fragile.
  - hedora 5y ago
    I agree that it is more reliable than most realtime network protocols, but that’s a pretty low bar. Two of the three cars I’ve had with CAN busses had recalls due to CAN priority inversions. One couldn’t turn the ABS off when the rest of the car shutdown, so it would sometimes drain the battery if parked for more than 6 hours. The newer one gets into a state where the “turn off cruise control” signal gets preempted. The solution is to stand on the brake pedal and force it into neutral. (The transmission control is also on the CAN bus, from what I can tell.). Those two events together put the power train into some sort of panic mode, and it stops applying throttle to the engine. The fact that the network protocol has been around for a while is no reason to trust a first-year redesign of a vehicle platform.
jagger27 5y ago
That doesn't really track since cars themselves have multiple operating systems. I don't want a mandatory software update that changes where my rear window defroster button is. I want a button. Is it so much to ask for a 90s BMW interior with a Tesla drive train? I think that's what GP is getting at.

dehrmann 5y ago

No. Redesigned cars are less reliable. https://www.consumerreports.org/car-reliability-owner-satisfaction/to-get-the-most-reliable-new-car-it-pays-to-wait-a1174785565/ https://www.consumerreports.org/car-reliability-owner-satisf... > CR’s proprietary analysis shows that vehicles tend to be most reliable by the final year of any particular model run (typically five to seven years), after many of the bugs have been worked out, and least reliable in the first year of a redesign, when freshly reconfigured and often touted as “all new.”