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cover of episode Special: Ford F-150 Lightning winter towing tests and Engineers interview

Special: Ford F-150 Lightning winter towing tests and Engineers interview

2022/10/19
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Electrek

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D
Dapo Adewusi
G
Gitanjli McRoy
S
Seth
Topics
Seth: 本期播客主要讨论了F-150 Lightning在冬季条件下的拖曳性能,以及影响续航里程的各种因素,并采访了福特的工程师。测试中发现,速度、拖车前端面积、温度和地形等因素都会显著影响续航里程。 Gitanjli McRoy & Dapo Adewusi: 他们在底特律进行了F-150 Lightning的拖曳测试,测试结果显示,在40华氏度和雨天条件下,能耗约为0.9英里/千瓦时。他们强调,预处理电池至关重要,可以最大限度地减少天气对续航里程的影响。车辆的智能牵引系统和近乎50/50的重量分配也提升了拖曳体验。775磅-英尺的扭矩使得拖曳过程轻松自如,强大的动力系统让驾驶员在高速并线时更有信心。驾驶体验过于平顺,以至于驾驶员可能会忘记自己在拖曳。 Dapo Adewusi: F-150 Lightning的前备箱优化承重为400磅,目前官方不支持安装雪犁,但福特正在考虑未来支持。超过70%的福特F系列皮卡用户进行拖曳作业。在寒冷天气下拖曳时,预处理车辆至关重要。F-150 Lightning全时四轮驱动系统针对各种驾驶条件进行了优化。教育客户预处理车辆、规划行程以及了解电动汽车的局限性至关重要。对于每天长途拖曳的客户,F-150 Lightning可能并非最佳选择。不同电池容量的F-150 Lightning具有不同的最大拖曳能力。车辆会在短时间内进行校准,以优化续航里程预测。高速行驶时,拖车前端面积对续航里程的影响更大。高速行驶时的阻力会呈非线性增长,从而显著降低续航里程。 Gitanjli McRoy: 经销商会指导客户进行车辆设置和拖曳准备。电动汽车和燃油汽车的拖曳物理原理相同,只是能量来源不同。电动汽车比燃油汽车效率更高,因此任何影响效率的因素都会更加明显。电动汽车在高海拔地区具有更稳定的动力性能。电动汽车在下坡时可以进行能量回收。F-150 Lightning的ProPower车载电源系统可为露营等活动提供电力支持,并允许用户设置用电限制,以确保续航里程。F-150 Lightning可作为工作和娱乐的工具。

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The podcast discusses the performance of the Ford F-150 Lightning in winter towing tests, addressing concerns raised in the media about its towing range.

Shownotes Transcript

Ford has been taking some hits in the media on the F-150 Lightning) towing range, so we thought it would be good to test it ourselves and then get the background from the people who built the Lightning, especially as we head into winter. Along with Ford’s PR team, we were joined by:

  • * Dapo Adewusi, F-150 Lightning Engineering Manager*
  • * Gitanjli McRoy, Chief Engineer, EV Energy Management Systems*

Here’s the discussion along with firsthand towing impressions below in both New York and Detroit.

I wanted to see how much range I’d lose while towing because there have been some recent videos showing only low double-digit-mile ranges coming out of the Lightning.

It is hard to quantify how much range you’d lose because of a ton of significant factors, like trailer weight, aerodynamics, and efficiency as well as normal EV range factors like elevation, climate, speed, etc., which are magnified while towing a trailer.

So I did two different tows: one with an open hauling trailer with a friend in New York and one with a closed trailer in Detroit – both very different experiences.

F-150 Lightning towing in the New York hills

After receiving the F-150 Lightning loaner, I immediately went to a friend’s place) to try some towing. He’s got a tiny house Airbnb north of New York City), which requires hauling loads of firewood into the mountains. As the weather gets colder, the tiny house mini split heating requires 240V power, and we wanted to see if the Lightning could power it.

His trailer is about 7x5 feet and weighs about 5,000 pounds loaded. Using the rear and above camera views makes hitching the trailer a breeze.

Without any outside instruction, we were able to enter the info into the Lightning’s towing configurator and were off in a matter of minutes.

The trip was mostly uphill, and after about six minutes, our already dropping fast range dropped by about half, which was initially very scary. I had started the trip with about 180 miles of range and within a few miles of uphill road, we were at about 140 miles of range. The truck recalibrated us down to 68 miles of range, which was a bit scary since we had planned to try powering the house while we were there and had to make it back as well.

The truck continued to lose range quicker than we were using it until the top of the mountain where it equalized with the range. That gave us a lot of confidence to try powering the house since most of the return trip was downhill and we would be without the load of wood.

Lightning powers a tiny house, including heating, easily

This exercise doesn’t really have to do with towing, but while we were at the Tiny House, we decided to try to power the whole house, including mini split heating, using the F-150 Lightning’s Pro Power on board and 240V generator plug.

https://twitter.com/llsethj/status/1582764128397328386

It just works. Usually, this requires a generator or a very large solar/battery setup, but not only can you tow a Tiny House (or Airstream/camper) to the middle of nowhere, you can also power it and heat it with the F-150 Lightning. I think I may have sold a few F-150s on this alone.

With the heat on full blast, the two power outputs stabilized at just over a kW, meaning we could have powered this thing for a full day using about 25kWh of battery.

The interesting thing about the trip back is that we ended with just about the same range as we’d started with, so we must’ve regenerated close to the 10 miles of range of the trip going downhill.

F-150 Lightning towing on flat ground

In Detroit, we drove an 8,000-pound trailer, 8x8 feet front end, about 15 miles on the highway, with about five miles of city driving, then 15 miles to return. Initially, while on the highway, I kept it at about 55-60mph (just under 100kmph). Most of the Detroit area is quite flat, so elevation isn’t a factor here, and it was about 40 degrees with rain. During this time, I saw energy usage at 1 mile/kWh, which means we can extrapolate 130+ miles from the 131kWh usable battery. I would use this figure as a baseline for towing. You might get better in warmer, dryer conditions with a smaller trailer, but starting here is easy and effective, and you can always drop down to this speed when towing on the highway.

While driving in the city with stops and starts, I saw the mi/kWh go down to .9, so keep in mind that city driving with an 8,000-pound load won’t necessarily save you range.

On the return trip, I tried hitting 65-70mph for brief periods, and that took the power usage down to .8 miles per kWh. So by driving just 10 mph faster, the range went from approximately 130 miles to about 100 miles.

Conclusion: Speed kills range, but it kills it even harder with a 64-square-foot front trailer. I imagine the videos where the F-150 Lightning gets only a low double-digit range are staged or at best poorly planned.

I finished with the following numbers after mixed driving:

F-150 Lightning Towing Observations

  • Probably the biggest takeaway for me is that towing is highly dependent on outside variables, many of which are controllable by the driver. Just dropping from about 67mph to about 57mph, for instance, added around 30 miles of towing range. The off-roading trim on my F-150 Lightning drops about 50 miles from the nontowing range, so prioritize accordingly.
  • Preconditioning the vehicle in cold weather can save almost all losses from the weather. Towing does put a higher strain on the batteries, but that heat keeps the pack warm and helps heat the interior of the vehicle.
  • One interesting thing I noted in hilly New York was that you lose a lot going uphill, but the regen going back down often mostly makes up for it (something that isn’t the case for ICE trucks).
  • On highway driving, as long as the trailer is built and maintained well, weight IS NOT a huge factor in flat road driving but aerodynamics IS. It makes sense since once you get the inertia going, weight doesn’t really put a force on the vehicle (as long as the speed is consistent), but the drag from the trailer is a constant and strong force, which increases exponentially with speed.
  • Plows (would impede the frunk) and camper backs aren’t currently supported officially on the F-150 Lightning, but Ford is taking this into consideration for the future. Ford also notes that it is your truck, and you can do what you want with it. Also, Ford officially supports putting 400 pounds in the trunk, which is a lot less than most plows.
  • The overall towing experience is so smooth and effortless compared to ICE that drivers might forget they are towing. There’s no audible cue of higher revving and struggling motors. The electric drive system makes slowing down and speeding up seem like a normal drive. Ironically, forgetting you have a trailer can actually be a concern when maneuvering/cornering, so stay alert!
  • There’s no way to sugarcoat it: The Lightning’s towing range isn’t as robust as its ICE counterparts. If you are towing a tiny house up a remote mountain, you might want to look elsewhere. However, for over 90% of towing use cases, the Lightning suffices, especially if planned accordingly. The growing density of charging stops makes it easier every day.