When the Rain Comes. . .
If past is prelude, then we can pretty much look forward to the Polar Vortex being replaced by the Tropical Monsoon or something along those lines, meaning April Showers 2.0.
Which leads to an explanation of how automatic windshield wipers work on the remarkably popular Buick Encore small crossover.
GM’s rain sensor technology global design engineer Matt Piazza
One might wonder whether there is a sensor that detects moisture which leads to the activation of the wipers. And one would be wrong.
Actually, the rain sensor is actually a light sensor that’s located behind the rearview mirror, mounted on the windshield at a 25- to 30-degree angle.
The sensor, about the size of a wristwatch (or, about 2 in. in diameter, as wristwatches are rapidly giving way to smartphones and other non-wrist-based devices that offer time among other functions), actually uses infrared light beams to detect water droplets on the windshield. The sensor takes measurements at a rate of every 40 milliseconds.
Not only does the sensor detect the droplet, but size and frequency, as well, thereby providing data that is then used to trigger the wipers.
According to Matt Piazza, General Motors global design engineer for rain sensor technology, “Each vehicle is unique and there are a lot of factors like windshield pitch, rain intensity, vehicle speed, and light conditions that all have to be accounted for and validated.”
The “Rainsense” system for the Encore was engineered by GM with sensor supplier Hella Electronics.
The only back-seat driver in designing automotive seats and trim covers is PLM. That’s a good thing.
The Mazda CX-5 first appeared on the scene in 2012, and for 2017, the vehicle has undergone some major transformations, to enhance what was already a notable small crossover.
Sandy Munro and his team of engineers and costing analysts at Munro & Associates were contacted by UBS Research—an arm of the giant banking and investment firm—and asked whether it was possible to do a teardown and cost assessment of the Chevrolet Bolt EV.