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Tesla’s patent for a stealthy, electromagnetic wiper is perfect for the new Roadster

Tesla's next-gen Roadster and the Model Y at the 2019 Annual Shareholder Meeting. (Photo: Sofiaan Fraval/Twitter)

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A recently published patent application from Tesla has revealed that the electric car maker is designing a stealthy, unconventional windshield wiper system that seems particularly tailor-fit for the company’s upcoming halo car: the next-generation Roadster. Apart from looking the part of a futuristic wiper assembly for a futuristic vehicle, Tesla’s patent also allows optimizations in range. 

As background, Tesla noted that conventional wiper systems usually utilize electric motors that move one or more wiper blades to clean the windshield of a vehicle. The assembly of such systems involves several mechanical components such as gears and bearings, which, in turn, enable the wiper blades to slide across the windshield. 

This sliding motion of the mechanical components creates significant friction during operation. This results in the need for additional power to be supplied by a car’s in-vehicle battery, thereby reducing an electric vehicle’s range. Traditional wiper systems are usually prone to rust and wear as well, which could bog down a wiper assembly and make it inefficient in cleaning a windshield. This could be an issue in regions that experience a lot of rain or snow. 

Tesla’s electromagnetic windshield wiper system. (Credit: US Patent Office)

With this in mind, Tesla argues that there is a need to design an innovative windshield wiper system that cleans better, and lasts longer. Such a system was outlined in a recently published patent, plainly titled “Electromagnetic Windshield Wiper System.” Tesla’s design for its electromagnetic windshield wiper system involves the use of a “linear actuator that may include a guide rail and an electromagnetic moving block.” The design is modular, enabling easy installation. The wiper arm and blade could be attached to each other as well, forming a “linear mono wiper in an uncluttered design.” Tesla describes how its windshield wiper assembly works as follows. 

“The disclosed electromagnetic wiper system may include a linear actuator that may include a guide rail and an electromagnetic moving block. The guide rail may include a plurality of permanent magnet bars that may be disposed horizontally along a curvature of the windshield of the vehicle. The electromagnetic moving block may act as an electromagnetic train, and may include a plurality of perforations and at least an electromagnetic coil that surrounds the plurality of perforations in the electromagnetic moving block. 

“The linear motion of the electromagnetic moving block through the plurality of permanent magnet bars may be controlled to steer the wiper arm that may be coupled to the electromagnetic moving block, back and forth across the entire length of the windshield to wipe a defined region, for example, the entire transparent area (i.e., near cent percent area) of the windshield. This may result in minimal friction during the linear motion of the electromagnetic moving block.” 

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Tesla’s stealthy windshield assembly described in its recent patent is definitely an improvement over the conventional wiper assembly found in this new Roadster model shown off during the Semi’s unveiling. (Credit: Bjorn Nyland/YouTube)

What is pretty interesting about Tesla’s electromagnetic windshield wiper patent is that the entire mono wiper assembly stows away beneath the hood of a vehicle when not in use. This, apart from giving an electric car windshield a clean, uncluttered look, improves a car’s aerodynamic performance during operations. Tesla notes that these optimizations will be particularly significant at high speeds. 

Tesla did not state which of its present or upcoming vehicles will be using the electromagnetic windshield wiper system outlined in the recently published patent. That being said, a look at the benefits of Tesla’s design suggests that the innovative wiper system will be a perfect fit for the next-generation Roadster.

The Roadster’s static models sported a conventional wiper system, after all, and they look almost out of place in such a futuristic vehicle. Considering that the new Roadster is Tesla’s halo car, it makes perfect sense for the company to go all out in its optimizations, windshield wipers included. Couple that with the Roadster’s emphasis on aerodynamics and high-speed driving and this patent makes even more sense for the all-electric supercar. 

Tesla’s full discussion on its electromagnetic windshield wiper system could be accessed here.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Elon Musk

Elon Musk’s Neuralink posts massive update with new milestone

This is the first time Neuralink has successfully implanted two patients in a single day.

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neuralink link device with white background
(Credit: Neuralink)

Elon Musk’s Neuralink has posted a massive update with a new milestone that puts the company’s progress into perspective. Over the past few years, we have seen tremendous strides in Neuralink’s capabilities.

Now, the company has completed a new first, bringing more hope to the future of this revolutionary technology.

Neuralink’s third brain chip patient shares first video edited with BCI

Neuralink revealed in an update on Monday morning that it has officially completed two implants in a single day, with Patients 8 and 9 both receiving devices over the past weekend.

“Both participants are recovering well and in great spirits,” the company said in the short update. It did not disclose which day the surgeries were completed, but it did state explicitly that they both occurred on the same day:

Musk said that Neuralink’s capabilities could do “life-changing good for ultimately millions, maybe billions, of people.” Right now, it is being used to help combat life-altering diseases, such as ALS, also known as Lou Gehrig’s Disease, as well as cervical spinal cord injuries.

Eventually, Neuralink could resolve things like anxiety, depression, and blindness, among many other ailments.

Its Link device also received FDA recognition for speech restoration earlier this year, marking a significant bit of progress in the program as it explores ways to cure ailments of various natures.

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Elon Musk

Elon Musk gives key update on plans for Tesla Diner outside of LA

More Tesla Supercharger Diners are on the way, Elon Musk says, as long as the initial one is successful.

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tesla diner supercharger in los angeles california at night
Credit: Tesla

Elon Musk has given a key update on its plans for the Tesla Supercharger Diner, as the first location in Los Angeles is set to open today, July 21.

The idea for the Supercharger Diner, which resembles a 50s-style eatery with elements of futuristic technology, is seven years in the making. Many wondered whether Tesla would expand its idea for a Supercharger restaurant outside of LA, and now we have an answer directly from Musk.

Elon Musk confirms awesome new features at Tesla Diner Supercharger

The Tesla CEO said that the company will establish these types of experiences “in major cities around the world, as well as at Supercharger sites on long distance routes.”

The Supercharger Diner has plenty of ways to draw in customers, and although the food and merchandise sold at the location will not be a major contributor to Tesla’s balance sheet, where investors want to see it, it could pay off in other ways.

The Diner is not exclusive to Tesla owners, so those who drive gas cars can still stop in for a burger, fries, and a shake while roaming around Los Angeles. The features of the Diner, however, do require a Tesla vehicle.

In-car ordering and movie screens syncing to the center touchscreen are two things that Tesla owners will enjoy that other drivers will not. These might be trivial, but the experience on its own could be a way that some consider buying a Tesla.

It might sound crazy that a singular diner experience would flip someone to buy a car, but it’s not the most outlandish thing we’ve ever come across.

The question is where Tesla will plan to build these Supercharger Diners. Musk has already indicated that Starbase, Texas, will be one location, which fits with one of his other companies, SpaceX.

Austin could be an ideal location, but New York, Miami, Washington D.C., Boston, and plenty of other popular metro areas within the U.S. could see their own diners in the coming years.

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Investor's Corner

Tesla analyst says this stock concern is overblown while maintaining $400 PT

Tesla reported $2.763 billion in regulatory credit profits last year.

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Credit: Tesla

One Tesla analyst is saying that a major stock concern that has been discussed as the Trump administration aims to eliminate many financial crutches for EV and sustainable industries is overblown.

As the White House continues to put an emphasis on natural gas, coal, and other fossil fuels, investors are concerned that high-powered sustainability stocks like Tesla stand to take big hits over the coming years.

However, Piper Sandler analyst Alexander Potter believes it is just the opposite, as a new note to investors released on Monday says that the situation, especially regarding regulatory credits, is “not as bad as you think.”

Tesla stacked emissions credits in 2023, while others posted deficits

There have been many things during the Trump administration so far that have led some investors to consider divesting from Tesla altogether. Many people have shied away due to concerns over demand, as the $7,500 new EV tax credit and $4,000 used EV tax credit will bow out at the end of Q3.

The Trump White House could also do away with emissions credits, which aim to give automakers a threshold of emissions to encourage EV production and cleaner powertrains. Companies that cannot meet this threshold can buy credits from other companies, and Tesla has benefitted from this program immensely over the past few years.

As the Trump administration considers eliminating this program, investors are concerned that it could significantly impact Tesla’s balance sheet. Potter believes the issue is overblown:

“We frequently receive questions about Tesla’s regulatory credits, and for good reason: the company received ~$3.5B in ‘free money’ last year, representing roughly 100% of FY24 free cash flow. So it’s fair to ask: will recent regulatory changes threaten Tesla’s earnings outlook? In short, we think the answer is no, at least not in 2025. We think that while it’s true that the U.S. government is committed to rescinding financial support for the EV and battery industries, Tesla will still book around $3B in credits this year, followed by $2.3B in 2026. This latter figure represents a modest reduction vs. our previous expectation…in our view, there’s no need for drastic estimate revisions. Note that it’s difficult to forecast the financial impact of regulatory credits — even Tesla itself struggles with this — but the attached analysis represents an honest effort.”

Tesla’s regulatory credit profitability by year is:

  • 2020: $1.58 billion
  • 2021: $1.465 billion
  • 2022: $1.776 billion
  • 2023: $1.79 billion
  • 2024: $2.763 billion

Potter and Piper Sandler maintained an ‘Overweight’ rating on the stock, and kept their $400 price target.

Tesla shares are trading at $329.63 at 11:39 a.m. on the East Coast.

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