Tesla was against consumption for a long time heat pumps in its vehicles, but like most things at the Austin, Texas-based automaker, it changed its tune. It first added the pump to his Model Yand ever since heat pumps have found their way to the rest of the company model lineup.
Now Tesla is giving us a detailed look at how its heat pumps work and why they were designed the way they were with a new video youtube.
“EVs have a bad reputation in cold weather. They are known for getting out of range super fast. You charge too slowly. Tesla heat pump It’s about changing all those notions and building an all-weather electric car,” says a disembodied voice at the beginning of the video.
That’s all well and good, but how does it work? Luckily for us, the video explains pretty well what exactly a heat pump does and why Tesla’s is a bit different than the others.
According to Lars Moravy, Tesla’s vice president of vehicle engineering, a heat pump is pretty much a reverse air conditioner. It extracts excess heat from the vehicle’s powertrain to reduce charging speeds and improve range in cold weather. Tesla says vehicles equipped with heat pumps can use the heat generated by the battery and drive units to do things like warm the interior, save energy and improve range on longer trips.
Heat pumps are widely used in most electric vehicles, but Tesla decided to take a clean approach to designing the component and went through a series of trial-and-error iterations. What Tesla says sets its heat pump apart from the rest is the “super manifold,” which is a two-layer PCV assembly, and the “octovalve.” It’s supposed to help scale up the system.” ™s efficiency and integration with the rest of the vehicle. There’s also a fun little octopus decal that will brighten any repair technician’s day. The automaker points out that its system can actually generate its own heat to keep the cabin warm, rather than relying on heat generated by the powertrain.
Tesla also wanted to reduce complexity with its heat pump. In the video, a spokesperson said they took a component that usually has 15 to 20 parts and combined them into one unit. Another example of simplification is a new coolant circuit configuration. Engineers combine two valves into a single valve. The company says it saves money and complexity on assembly.
“If you can carry a larger load, more cargo, more passengers, and still get to your destination while using 15 to 20 percent less energy, that matters,” Vincent, who works in Tesla’s Systems Monitoring department, said in the video.