Toyota Thinks Connected Wiper Data Can Improve Weather Forecasts

Matt Posky
by Matt Posky

Toyota and Japanese weather information provider Weathernews Inc. have been running tests aimed at improving the accuracy of rain forecasts by using driving data from connected cars — or, more specifically, their windshield wipers. Based on the assumption that wiper operations correspond with the presence of precipitation, matching the severity to speed settings, the pair feel they can leverage customer information to close info gaps created by low-altitude rain clouds that are difficult to track.

With an official announcement issued earlier this month, both companies are framing this as an effective way to bolster roadway safety and offer new services to its customers. But it also raises the usual round of privacy concerns re: connected vehicles, while potentially offering some interesting and useful features — like localized flood warnings and other traffic advisories.

From Weathernews:

In recent years, the growing severity of weather phenomena and the resulting damage have become a societal issue, and there is an unprecedented demand for local, immediate weather information, as well as information on how to respond. To meet these needs, it is necessary to determine more detailed and accurate weather conditions in real-time. However, existing weather observation tools have limitations in their installation locations and measurement intervals.

Meanwhile, the development of IoT technology has ushered in an age where various devices are equipped with communication functions. The same is true for vehicles, and by gathering driving data and condition data from connected vehicles equipped with IoT technology, it is possible to detect phenomena that could impact their driving and behavior.

Potentially, sure, but amassing enough useful data to allow meteorologist to start making useful assumptions will take time. In the short term, the only real benefit you could expect is more accurate forecasting for your immediate area.

Basically, your car transmits data to Toyota and the bit about whether or not you’ve got your wipers on is then forwarded to Weathernews. The data also works in tandem with information collected an existing meteorological observation network of some 13,000 locations across Japan. The duo have also put together an AI algorithm that predicts flooded locations on roads, with verification testing taking place in October — suggesting they’ll be able to do more than simply let people know how hard its raining.

For now, it’s limited to Japan. Toyota aims to have the brunt of its fleet connected to the internet as soon as possible, meaning there’s nothing stopping these kinds of data partnerships from spreading to other markets. We’ll let you debate whether or not that’s desirable.

[Image: What Photo/Shutterstock]

Matt Posky
Matt Posky

A staunch consumer advocate tracking industry trends and regulation. Before joining TTAC, Matt spent a decade working for marketing and research firms based in NYC. Clients included several of the world’s largest automakers, global tire brands, and aftermarket part suppliers. Dissatisfied with the corporate world and resentful of having to wear suits everyday, he pivoted to writing about cars. Since then, that man has become an ardent supporter of the right-to-repair movement, been interviewed on the auto industry by national radio broadcasts, driven more rental cars than anyone ever should, participated in amateur rallying events, and received the requisite minimum training as sanctioned by the SCCA. Handy with a wrench, Matt grew up surrounded by Detroit auto workers and managed to get a pizza delivery job before he was legally eligible. He later found himself driving box trucks through Manhattan, guaranteeing future sympathy for actual truckers. He continues to conduct research pertaining to the automotive sector as an independent contractor and has since moved back to his native Michigan, closer to where the cars are born. A contrarian, Matt claims to prefer understeer — stating that front and all-wheel drive vehicles cater best to his driving style.

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  • Ravenuer Ravenuer on Nov 12, 2019

    "Based on the assumption that wiper operations correspond with the presence of precipitation.....". I'm truly in awe of these guys.

  • ToolGuy ToolGuy on Nov 12, 2019

    OEM's: If the vehicle is smart enough to turn the wipers on when it is raining, it should also turn the headlights on when the wipers are on. Thank you.

  • Marcr My wife and I mostly work from home (or use public transit), the kid is grown, and we no longer do road trips of more than 150 miles or so. Our one car mostly gets used for local errands and the occasional airport pickup. The first non-Tesla, non-Mini, non-Fiat, non-Kia/Hyundai, non-GM (I do have my biases) small fun-to-drive hatchback EV with 200+ mile range, instrument display behind the wheel where it belongs and actual knobs for oft-used functions for under $35K will get our money. What we really want is a proper 21st century equivalent of the original Honda Civic. The Volvo EX30 is close and may end up being the compromise choice.
  • Mebgardner I test drove a 2023 2.5 Rav4 last year. I passed on it because it was a very noisy interior, and handled poorly on uneven pavement (filled potholes), which Tucson has many. Very little acoustic padding mean you talk loudly above 55 mph. The forums were also talking about how the roof leaks from not properly sealed roof rack holes, and door windows leaking into the lower door interior. I did not stick around to find out if all that was true. No talk about engine troubles though, this is new info to me.
  • Dave Holzman '08 Civic (stick) that I bought used 1/31/12 with 35k on the clock. Now at 159k.It runs as nicely as it did when I bought it. I love the feel of the car. The most expensive replacement was the AC compressor, I think, but something to do with the AC that went at 80k and cost $1300 to replace. It's had more stuff replaced than I expected, but not enough to make me want to ditch a car that I truly enjoy driving.
  • ToolGuy Let's review: I am a poor unsuccessful loser. Any car company which introduced an EV which I could afford would earn my contempt. Of course I would buy it, but I wouldn't respect them. 😉
  • ToolGuy Correct answer is the one that isn't a Honda.
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