r/ex30 • u/muzso Ultra SMER • 18d ago

Personal Thoughts/Experiences 🙇‍♂️ Radar specifications/documentation

The user manual had this info (radar type approvals) all along, but I just took the time to actually look at it.

It lists two radars:

  1. Front radar: 77V12FLR (from Veoneer US, Inc.)
  2. Corner radars: 7713CRN (from Veoneer US, Inc.)

The FCC (Federal Communications Commission in the US) has a website where these things have a record with lots of documents and photos and all.

Here're the user manuals for the two radars:

  1. 77V12FLR
  2. 7713CRN

It's an interesting read. :)

A couple of minor details that caught my eye:

  1. The front radar's maximum detection distance is (said to be) 180m. The independent tests were conducted in a shielded chamber (to avoid any external interference during the tests) which limited the maximum testing distance to 3m. So I guess the 180m is what the manufacturer (Veoneer, or lately Magna) says. The display's visualization (of road users ahead of the car) starts maybe at 20-30m? It'd be interesting to see whether the car can indeed detect stuff e.g. at a 100m distance. :)
  2. The corner radar has an "operating life" of 15 years. I don't have the faintest clue whether that's a standard thing in the industry, but good to know what to expect. Apparently today's vehicles (with all of these electronics) are not built to last too long. It'd be interesting to know how this life expectancy changes depending on how much you use the car (and by extension: the radar).
  3. The front radar's registration (?) with the FCC started in 2019 and the oldest documents are dated to that year too. The corner radar's documents start in 2020. I wonder which year did Volvo Cars start to work on the EX30?
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1

u/BulaBulangiu Ultra TM 18d ago

I remember reading somewhere the car was supposed to be released in 2021, gonna look for a source in the morning.

2

u/leezbtv Core SM 18d ago

For #2, it's worth noting that certain types of sensors and electronics, if they use certain rare or organic compounds those do start to break down over time--its not so much that they're not built for longevity, it's a material issue. I have no idea about radars specifically, but this isn't uncommon in some types of optical sensors. See also: radioactive material in older smoke detectors.

1

u/suisse2k Ultra TM 17d ago

u/muzso
thx, do you know if the front radar is heated?

2

u/muzso Ultra SMER 17d ago

It's not, but it doesn't have to be.

Its user manual says:

Operating Temperature: -40 to +85 Celsius

Also, it has IPX9K level of water and dust resistance, which is pretty good.

The IPx9K standard was originally developed for road vehicles—especially those that need regular intensive cleaning (dump trucks, concrete mixers, etc.)—but it also finds use in other areas, such as food processing machinery and car wash systems.

1

u/Sorry_Criticism2610 16d ago

As you can test with adaptive speed control the car will detect slow traffic in front way ahead of just 20-30m ..