GMC 시에라 EV: 전기 픽업 테스트의 비하인드 스토리

### 밀포드 주행 시험장에서의 GMC 시에라 EV 테스트 비하인드 스토리
* 🚗 저는 세계에서 가장 오래된 자동차 테스트 시설인 밀포드 주행시험장으로 향하는 GMC 시에라 EV 데날리 에디션 1을 핸즈프리로 **5,600파운드의 짐을 견인하는 견인 초보자**입니다.
* 🏁 4,000에이커에 걸쳐 140마일이 넘는 도로가 있는 Proving Grounds에서는 **1,750만 마일의 가상 주행**을 통해 제동, 스티어링, 전기 시스템 및 배터리에 대한 광범위한 테스트가 이루어집니다.
* 🔧 슈퍼 크루즈는 **미국과 캐나다의 75만 마일이 넘는 매핑된 고속도로**에서 핸즈프리 견인 기능을 지원하여 운전대를 잡을 필요 없이 운전의 편리함을 경험할 수 있게 해줍니다.
* 💥 시에라 EV는 **440마일이라는 놀라운 주행거리**를 자랑하며, 극한의 조건에서 엄격한 테스트를 거친 배터리 기술을 통해 **쉐보레 실버라도 EV와 함께 최장 주행거리 전기 픽업트럭**으로 자리매김했습니다.
* ° C와 높은 진동으로 실제 주행 시나리오를 시뮬레이션하여 **차량의 안정성**을 보장합니다.
* 💻 엔지니어는 고급 시뮬레이션과 테스트 장비를 사용하여 **인포테인먼트 시스템과 안전 기능을 포함한 모든 구성 요소를 검증**하므로 실제 테스트에 필요한 시간을 크게 단축할 수 있습니다.
* 🎨 인테리어 디자인 프로세스에는 **VR 헤드셋과 클레이 모델이 통합**되어 있어 디자이너가 실제 제작 전에 객실의 비율과 재질을 다듬을 수 있습니다.
* 🌟 궁극적으로 시에라 EV를 운전하는 것은 **전통적인 픽업트럭과 같은 느낌**을 주며, 제조업체들이 이 시장에 막대한 투자를 하면서 **전기 트럭이 주류로 채택되는 중요한 순간**을 맞이하게 됩니다.

GMC 시에라 EV는 기술과 전통적인 트럭의 느낌을 결합하여 주류 전기 픽업 트럭의 중추적인 역할을 담당합니다.

okay, here we go. Yep, that's me, a towing newbie hauling 5,600 hands-free in the GMC Sierra EV Denali Edition 1. I'm on my way to the Milford Proving Grounds, which is the oldest automotive testing facility in the world, and it's where General Motors does a whole range of different testing on its vehicles. I am going to take you behind the scenes to actually drive on those test tracks in the newest EV pickup truck from GMC, and then I'm going to take you behind the scenes to see how it all comes [Music] together. The Proving Ground covers 4,000 acres and has over 140 miles of road, including special tracks to test ride and handling. Before rubber ever hits the road here, 17.5 million miles of virtual driving has already happened. Braking, steering, electrical systems, suspension, and battery are all tested in the lab, in simulators, and finally in the vehicle itself. Super Cruise, or hands-free driving, is the only system that lets you tow a trailer, and GM says it will work

on over 750,000 miles of liar mapped highways across the US and Canada by the end of 2025. Let's head back to the track to see it in action. If you want, let's say 55-60 MPH, whatever you're comfortable with. It does not feel like I've got a trailer behind me. This is wild. Okay, this is both terrifying and amazing at the same time. Time 55. Okay, here we are. All right, so now there's a little white steering wheel on the cluster that indicates we are on a mapped road for super cruise. So if you want to press the super cruise button, yep, right where your thumb is, go ahead and press that. It first turns blue and then quickly to green once it recognizes, and once it's green, you can let go with your hands, okay? And it will now control speed and steering. Okay, we weren't allowed to put cameras on the track to show you the outside shot of me towing that 20-ton trailer, but it looked something like this. Green lights on and, and you serious.

I take my everything off the no really yep just keep focusing oh my God okay vehicle will take care of the rest okay here we go my my feet AR my feet I can just sit back like this really that is wild I can't believe it you let me do this with a trailer this is really cool I on the road still but on the road y it's still monitoring you to make sure you're still here this is it's too easy it's too easy if I can do it just by pressing a button anyone can the ride and handling Loops evaluate everything from steering to suspension this is where I got to try out max power mode which unleashes 754 horsepower and 0 to 60 and less than 4.5 seconds and I brought a few colleagues along for the ride so get down to about 25 what we're going to do H all right go ahead Thor's hammer came out as us Engineers like to call it but this real world testing is only a small part of

the process. About 80% of the development is done virtually before a vehicle is even built. So we can do suspension tuning, we can do tire construction evaluation, all those types of things with a driver in a buck in a simulated environment. It simulates any road surface that we want to go out and map and take into account, and you can do a lot of that tuning before you ever get wheels on the road. And this actually has a full 6° of freedom, so it's going to be able to simulate pretty much every scenario you might end up in in the real world. The Sierra EV was originally specced to have over 400 miles of range, but it ended up being 440, making it the longest-range electric pickup so far, alongside the Chevy Silverado EV. Getting that 440-mile range out of the Sierra EV really does start at the battery level, and this is the Battery Systems lab here at GM where all of the development takes place. And it starts from the cell level, then to the module, and then to the battery pack.

that ends up in the final vehicle, and all the batteries go through extensive, rigorous testing, including some very extreme situations. We made a small innovation to this cell design, where it only has that folded seam on one edge, so this pouch is actually a single piece. It wraps around the electrodes, kind of like a taco. That means on the bottom, we've only got one layer of pouch to go through, and that's actually really easy to go through to get heat out. How you doing, Kevin? There are some special durability tests that replicate environments the battery might go through. This walk-in chamber is set to -68° C, and it runs for weeks on end to see what the power deviation is when the cells cool. It can also heat up to positive 68° to test performance in extreme heat. Okay, so this is the Mega Shaker. So this one will go from 0 to 2,000 htz. We can go up to 4,000 lbs of weight on here. If you're going on a

highway, and you're trying to simulate a 2-inch bump at 60 mph. That's a lot of inertia to control, and so that whole thing is literally shaking while the engineers are in that control room watching it. This lab has actual brake hardware, including brake calipers, lines, and hoses, combined with a virtual simulation of other parts of the truck. Engineers do validation testing for specific elements like one-pedal drive. This would normally take a driver days or weeks on end in the real world, but it takes only 30 to 50 hours in the lab. Every element is tested over and over again, from components in the infotainment system to the suspension. This is called a four-poster, and it's used to simulate road forces on the vehicle. So this test is actually testing a particular scenario where slabs are not level, and you're going through, and there's frost on the road, and it feels pretty smooth. That was a bump I wasn't expecting. All of this wiring is actually representative of what is in the Sierra.

EV obviously. It looks a little bit different to what's here, but this is also. Engineers can test the software in the vehicle before it goes into the evening itself. And here, around the front side of the bench, you'll see these circuits. And this is where Engineers can do all of their testing. They can introduce faults if they need to and basically make sure the software is doing what it's expected to do. And every single element of the vehicle is represented here. The software that controls the infotainment system, through to the safety systems, through to even the lighting right up here. That's all tested right on this bench. Even the Sierra ev's interior has gotten a high-tech makeover thanks to head-mounted displays or VR headsets. Designers use them alongside clay models to get a feel of the cabin before it's even built. So, at the beginning of the process, it helps us to just decide if the proportions are right or general location of like the steering wheel or screens. Are they okay? But then when you get to the end of the process where you

really have a detailed surface model like this. We can get into colored materials, changing the finishes on certain things, but it also allows us to sort of deep dive how parts fit and how you really feel in the environment. I've been driving the CR AV for the past few days, and what's really struck me the most is that at its heart, it truly just does feel like a pickup truck, despite all of the high-end technology inside. And it does feel like this is a pivotal moment for EV pickup trucks, with manufacturers like Rivian, Ford, Tesla, and of course GM placing big bets. I really do feel like this could be the time for EV trucks to cross over into the mainstream. Thanks so much for watching. I hope you enjoyed the episode as much as I enjoyed making it for you. You can find more about the Sierra EV and the development process in the link in the description below. I'll see you later.

I Towed 5,600 Pounds Hands-Free in the GMC Sierra EV Truck

CNET is the premier destination for explaining and navigating the changing world around us. Through news, product reviews, price comparisons, and more, we’ll tell you what’s new in the parts of modern life that increasingly matter more — from health, home, and money to tech, culture, and climate — and how to get the most out of them.

CNET

GMC 시에라 EV 데날리로 견인하기: 비하인드 스토리

견인 초보자인 필자는 GM에서 가장 오래된 자동차 테스트 시설인 밀포드 주행시험장으로 5,600파운드의 GMC 시에라 EV 데날리 에디션 1을 견인하고 있습니다.

4,000에이커의 면적에 140마일의 도로가 있는 이곳에서는 실제 차량으로 테스트하기 전에 1,750만 마일의 가상 주행이 이루어집니다.

견인 중 핸즈프리 주행을 제공하는 슈퍼 크루즈 시스템은 2025년 말까지 미국과 캐나다의 75만 마일 이상의 매핑된 고속도로에서 사용할 수 있게 될 예정입니다.

시에라 EV는 754마력의 출력과 4.

5초 미만의 제로백으로 독특한 주행 경험을 선사합니다.

이 차량의 개발은 주로 가상으로 이루어지기 때문에 실제 시나리오에 대한 광범위한 튜닝과 시뮬레이션이 가능합니다.

최종 주행 거리가 440마일에 달하는 시에라 EV와 쉐보레 실버라도 EV는 이제 최장거리 전기 픽업트럭의 타이틀을 보유하게 되었습니다.

차량 배터리에 대한 엄격한 테스트

배터리 셀 디자인은 전극을 감싸는 일체형 파우치를 만들 수 있는 독특한 접이식 솔기가 특징입니다.

전력 편차와 성능을 평가하기 위해 추위와 더위 등 극한의 온도에서 광범위한 내구성 테스트를 실시합니다.

또한 실제 주행 조건을 시뮬레이션하고 다양한 차량 부품을 테스트하여 철저한 검증과 신뢰성을 보장합니다.

전기차 개발의 하이테크 테스트 및 설계

엔지니어는 전용 벤치에서 차량의 소프트웨어를 테스트하여 결함을 발견하고 기대치를 충족하는지 확인합니다.

인포테인먼트 시스템부터 안전 및 조명에 이르기까지 차량의 모든 요소를 표현하고 테스트합니다.

디자이너는 클레이 모델과 함께 헤드 마운트 디스플레이와 VR 헤드셋을 사용하여 제작 전에 실내 디자인을 다듬습니다.

CR AV에는 세부적인 표면 모델이 있어 부품과 부품이 어떻게 결합되는지 자세히 살펴볼 수 있습니다.

이 트럭은 첨단 기술에도 불구하고 전통적인 픽업트럭의 느낌을 유지합니다.

현재 전기 픽업 트럭은 주요 제조업체들이 상당한 투자를 하고 있으며, 잠재적으로 주류 크로스오버로 이어질 수 있는 중요한 시기입니다.