4 ms·

The analog speedometer it replaced has been digital behind the scenes for ages. The cluster is just sat on a CAN (or similar) bus and controlling a servo for th

The analog speedometer it replaced has been digital behind the scenes for ages. The cluster is just sat on a CAN (or similar) bus and controlling a servo for the analog gauge. The pure digital speedometer is significantly less failure prone (and indeed when it does fail, it’s obvious).

oldgradstudent 3y ago
A German professor of mine worked at BMW before grad school. He worked on the firmware of the tachometer. The behavior of the tachometer needle was dictated by the marketing department. A BMW engine accelerates smoothly and confidently. The tachometer needle never shakes, it rises smoothly and confidently.
- don-code 3y ago
  This is wholly unsurprising to me - the tachometer on my BMW is audibly out of sync with the engine.
  - mrpippy 3y ago
    Is that the actual sound of the engine, or fake engine noise being generated through the speakers?
rootusrootus 3y ago
> The pure digital speedometer is significantly less failure prone It sure is. I'm old enough to have had several cars with speedometer malfunctions due to that stupid little plastic gear at the transmission. One more nuisance I'm glad we don't have on newer cars.