Thursday 24th May 2018.
NEW BATTERY TECH FOR AUDI E-TRON SUPERCAR
- There’s no doubt right now at the top of the EV tree is the Tesla Roadster coming soon and the Rimac C_Two. But Audi has a plan to change that. Audi’s global boss of product and technology communications, Peter Oberndorfer, confirmed to motoring.com.au that a rival to the monstrously powerful 800kW/1600Nm Rimac has been discussed. “We consider everything at the moment but I personally believe we need a little bit more battery development [for an extreme EV supercar],” said the Audi technology executive, singling out solid-state batteries as a possible solution.
- “Because if you go very fast you need a lot of battery and don’t want to spend three days going from the Nurburgring to Munich or the other way around,” he said, highlighting the fact the 550km trip would require frequent recharging with current the level of lithium-ion battery technology.
- The e-tron Quattro is the first of their EV’s coming, the first of four.
- He continued: “I think lithium-ion will develop [further efficiency gains] but not very significantly. Our development boss Peter Mertens is speaking of solid-state batteries, which are still a few years away, but I think it would be an advantage if it will be developed, so that batteries are getting lighter and need less space.”
BMW X5 390HP PHEV NEXT YEAR
- Gabriel Nice and BMW Blog is excited for the new BMW X5. Saying: “With everyone focusing on SUVs these days and since hybrid models are in big demand, BMW decided to do something about the iPerformance model in the X5 range as well. The BMW X5 xDrive40e will be replaced next year”
- So the likely combo is a 2 liter gas engine producing 250hp couple with a powerful motor.
- “What will change though will be the electric motor and the batteries. BMW will use next-gen batteries on all its upcoming EVs and PHEVs and that implies a longer range. Chip in the lower overall weight of the X5 and we’re hoping to see a real-life pure EV range of about 30 miles. If all that turns out exactly as we expect it to, remains to be seen, but the new X5 is definitely going to be a popular choice.”
WATCH AS TESLA MODEL 3 BATTERY IS REMOVED AND DISASSEMBLED
- You wait years for a car and then you wreck it, that’s not the fairytale story any Model 3 owners would tell. But as InsideEVs picked up on EVTV have a Model 3 battery pack from a salvage auction.
- Domenick says: “Before the pack is divorced from the car’s chassis, we learn one of the things that separate it from the energy box found beneath the Model S: it’s not designed with the battery swapping as a future possibility, it a lot more difficult to actually disconnect and extricate it from its snug home. The differences don’t stop there, either. Unlike the S, and pretty much every other electric vehicle we’ve seen disassembled, the Model 3 has its AC charger and DC to DC converter inside of the battery pack. Typically, those are components found under the hood. There are advantages and disadvantages to this approach. On one hand, it might speed up the car assembly process. On the the other, if one of these components goes bad, the time and cost to fix will be elevated.”
- Check out the link to InsideEVs in the show notes to watch the video or Jehu Garcia has a 9min summary. I have a two hour train journey to work tomorrow, i’m definitely watching the whole thing. And i can’t wait for whatever commuter sits next to me to look at my phone and think is he watching a car battery being taken apart FOR AN HOUR? Yep.
FAST CHARGING CURVES
- One of my favourite bloggers is Pedro at Push EV’s, he doesn’t post too much and when does it’s always something really interesting. And now he’s taking apart a post by charging company Fastned who plugged in a range of EVs and measured the charge speeds. So they took the LEAF 24, 30 and 40’s, and it’s interesting to look at the graph and see the 30kWh LEAF hangs onto almost 50kW charge speed all the way up to 80% SOC before dropping off. The new LEAF 40kWh however falls off a cliff at 60% SOC falling down 20-30kW speeds.
- They do the same for the BMW i3 22kWh and 33kWh versions with the original gen car because much more conservative with charge speeds. The Hyundai IONIQ was plugged into their new 175kW chargers and it blitzed it until 80% SOC. The original eGolf would take a higher speed up to 75% SOC but then throttles the speed to protect the battery, whereas the new eGolf 36kWh charges slightly slower but goes past 80% SOC before the drop off in speed is much more gentle.
- I’ll put a link in the show notes, and on Twitter.
TOYOTA THINKS CONVENTIONAL HYBRIDS ARE MORE IMPORTANT THAN EVS AND PHEVS
- Toyota have been electrifying cars longest than most, with the Prius, but they’re setting out their stall in the form of hybrids.
- CarScoops says that “Speaking with Wards Auto, Toyota’s executive general manager of their powertrain division said “We believe that hybrids will come ahead of full electrics” although the company recognizes that some companies are going straight to EVs. Shizuo Abe went on to say “We believe that our biggest weapon for meeting fuel-efficiency and CO2 regulations, not just in Europe but globally, will continue to be hybrids.”
- “Abe went on to say the biggest problem with electric vehicles is lithium-ion batteries because they’re expensive, large and heavy. He also noted their “deterioration characteristics” which is a reference to how the batteries lose capacity as they age and complete hundreds of charging cycles.”
EVS MUST BE DESIGNED GROUND-UP
- Tata Technologies’ MD and CEO Warren Harris has been speaking about how the company’s expertise can help OEMs utilise technologies for connected vehicles, hybrids and EVs.
- “Electric cars must be designed from ground-up ? simply retrofitting existing car bodies with new batteries and components won’t do. Newer, cheaper, more efficient batteries will have to be manufactured. Green mobility is no longer just a buzzword ? it is becoming more and more of a norm these days in a world which is looking to become increasingly greener, more connected and less manual. The industry has moved to make cars more efficient by leveraging technology that can effectively cut down emissions. Mobility is increasingly becoming more sustainable with regulations providing a solid backbone. Attitudes towards emissions are changing with governments and industries globally working towards solutions to cut down emissions from combustion engines. As a veteran organisation in providing engineering services for complete vehicle development and one of the leading engineering partners to OEMs, start-ups in the electric vehicles sector, Tata Technologies brings market-leading expertise to help manufacturers utilise technologies for connected, hybrid and EVs.”
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