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Author Topic: Zero SR/F  (Read 33820 times)

tango

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Re: Zero SR/F
« Reply #30 on: January 05, 2019, 12:57:28 AM »

Ah, I see, that makes sense.

I would settle for 250/150 legit range with 100hp, 140ish tq (80kw motor)
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Evilthor

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Re: Zero SR/F
« Reply #31 on: January 05, 2019, 01:07:25 AM »

What I cant wait for is when we have a 500 mile cruising range and 15 minute recharge and all the ICE riders will say they cruise 1000 miles a day and only have 2 minutes to fuel up.
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NEW2elec

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Re: Zero SR/F
« Reply #32 on: January 05, 2019, 02:11:13 AM »

Ok well electric motors are already super efficient like in the 90% range to most gas engines being 30%.  The ICE only wins because of the super energy density of gas overcoming this bad use of energy.
So we won't get 300 and 150 miles of range from the same battery size from better motors.
New battery types on the other hand and we could get high kWhs in the same size which is the dream at this point.
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Haag13

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Re: Zero SR/F
« Reply #33 on: January 05, 2019, 03:09:38 AM »

Traction control, cornering ABS, and a motor that actually feels like 100 ft/lbs of torque would be fine with me.  The SR accelerates very nicely, but it doesn't feel like a bike with 100 ft/lbs of torque, and there is no speed in which you can snap the throttle and easily lift the front wheel.  A bike claiming more torque than a 1290 super duke ought to be able to lift the front wheel with ease!
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Doug S

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Re: Zero SR/F
« Reply #34 on: January 05, 2019, 03:35:38 AM »

Traction control, cornering ABS, and a motor that actually feels like 100 ft/lbs of torque would be fine with me.  The SR accelerates very nicely, but it doesn't feel like a bike with 100 ft/lbs of torque, and there is no speed in which you can snap the throttle and easily lift the front wheel.  A bike claiming more torque than a 1290 super duke ought to be able to lift the front wheel with ease!

Don't forget that torque is measured at the motor output, and doesn't account for drivetrain gearing. All those other bikes have low gears (which they must have because they can't operate well at low rpm), which multiplies their torque output. https://itstillruns.com/calculate-torque-through-gear-reducer-7628270.html  Our bikes have a single, high gear, so we don't get as much torque multiplication at lower road speeds. So yes, other bikes put out more thrust in first gear than we can in our only gear, so they can wheelie through motor torque alone.
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There's no better alarm clock than sunlight on asphalt.

BrianTRice@gmail.com

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Re: Zero SR/F
« Reply #35 on: January 05, 2019, 04:20:03 AM »

Traction control and greater safety features like dual front discs are appealing.

Higher level charging and more robust and reliable stock equipment are appealing.

Higher power output is absolutely undesirable. My girlfriend is already very uneasy on the DSR and I would de-rate any increase in powertrain output for all riding purposes. The 2016 DSR is as powerful as my V-Strom and much more torquey.

I want a bike that imbues confidence, not a dank wheelie machine. If increasing power finally cracks the sales numbers Zero needs, more power to them, but they need to not alienate moderate daily riders, because it’s those riders that appeal outside the current motorcycle market.

The current Zero platform has too many gotchas when circumstances aren’t ideal, and this lack of focus on robustness is costing them long term ownership and making the bikes less appealing than the core powertrain deserves.
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Current: 2020 DSR, 2012 Suzuki V-Strom
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ultrarnr

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Re: Zero SR/F
« Reply #36 on: January 05, 2019, 04:43:40 AM »

If Evilthor is correct and the new platform is 200 volts then it might have CHAdeMO DCFC but not CCS. Just means another outlet needed. Still it is far better than the current L2 charging speed. I am assuming 200 volts is the fully charged voltage which is as low as CCS goes. CHAdeMO goes down to 50 volts. Energica when down to around 2% SOC is at about 290 volts. Fully charged it is about 320 volts.
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JaimeC

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Re: Zero SR/F
« Reply #37 on: January 05, 2019, 06:04:44 AM »

I don't need traction control; all the traction control I need is in my right wrist.  Better brakes would be nice.  Doesn't even have to be dual-disc (which would add unsprung weight), but a nice, radial-mounted Brembo monobloc front caliper would make a real difference on a sufficiently large diameter rotor (just ride any Buell and you'll see what I mean).

LED lighting is VERY nice.  Now that I have them on my new car I can see why the fuss.  I would like a stiffer frame (I noticed the seat bolts don't line up when on the sidestand... but line up just fine when I raise the rear wheel on a track stand).  Nicer footpegs and controls would go a long way to making the bike feel "premium."

Include fast charging as standard.  Like Brian, I don't really need more power.  Heck I don't even have an SR, "just" an S, and I find 80 lbs/ft of torque for a 400 lbs motorcycle is MORE than enough.  My friend on his 1290 Superduke had a hard time keeping up with me on my little ol' Zero through the twisties.

And last but not least, incorporate Hollywood Electric's fairing.  They already did the work, just license and resell it as a standard component.  Improving streamlining is still the best way to improve range and rider comfort.
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domingo3

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Re: Zero SR/F
« Reply #38 on: January 05, 2019, 06:57:24 AM »

Ok for fun I'll take the low end.
Small front fairing and LED lights with wind screen and better seat and upgraded paint job.

I hope Evilthor wins.

Read my posts on page 1.  More power, more torque, higher top speed, traction control and cornering ABS are all promised by Zero unless this is a fake website : http://zeromotorcycles.at/index_at.html -- click on "news" at the top.

  Higher voltage has been speculated.  I wouldn't be surprised.  Zero has been cautious for safety reasons, but "everyone else is doing it", so maybe they feel the pressure to stay competitive and/or more comfortable with the risk that comes with the higher potential now.
« Last Edit: January 05, 2019, 06:59:25 AM by domingo3 »
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NEW2elec

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Re: Zero SR/F
« Reply #39 on: January 05, 2019, 07:33:34 AM »

Hi domingo3, yeah the post above the one you quoted from me gave a lot of high end specs that I would love to be the case but the last part of the post used the word "inferred" so at this point we can't take all that as fact. 
After years of new model year "wish lists" and being disappointed I lowered expectations like I said just for fun.
The link is in German and that info is not on Zero's webpage nor in the "get notified" email so I'll just wait and see what comes and again I hope the high end specs are correct.
Cheers.
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syncsynchalt

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Re: Zero SR/F
« Reply #40 on: January 06, 2019, 07:51:59 AM »

If Evilthor is correct and the new platform is 200 volts then it might have CHAdeMO DCFC but not CCS. Just means another outlet needed. Still it is far better than the current L2 charging speed. I am assuming 200 volts is the fully charged voltage which is as low as CCS goes. CHAdeMO goes down to 50 volts. Energica when down to around 2% SOC is at about 290 volts. Fully charged it is about 320 volts.
I'm sure if it's in the 200V range then it'll have CCS rather than CHAdeMO, which is dead in the near future.  Also, some CHAdeMO chargers don't actually step down below 200V, which is why Zero stopped their integration project in 2013.  The only(?) reason for Zero to change the system voltage is to make L3 charging possible (and that's a pretty good reason), which means CCS/Mennekes compatibility as those seem to be the winners in US and EU.

I wonder if they'd need to introduce an active cooling system, especially given what we've seen with the Nissan Leaf / Rapidgate [1].

[1] For those that don't follow EV cars, the Nissan Leaf was one of the very first EVs, and like our Zeros it does not have "active battery thermal management", in other words liquid cooling, radiators, fans, etc.  This decision has caused Leafs sold in the US southwest to see massive battery degradation, and now that DCFC is becoming more common Leaf owners are finding that it's impossible to actually reach the advertised charge rates on prolonged drives due to the BMS refusing to commit thermal suicide.  In particular you can't even hit rates over ~30KW when distance driving in subzero temps.
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caza

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Re: Zero SR/F
« Reply #41 on: January 06, 2019, 08:11:32 AM »

I don't see zero adding thermal management anytime soon. The weight and space required would cut their advertised range, and general consumers don't know or care about active thermal management.

The design of the monolith is about getting that range number as high as possible, not for battery longevity, and there's no reason for Zero to change those priorities at the moment.
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centra12

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Re: Zero SR/F
« Reply #42 on: January 06, 2019, 05:02:04 PM »

I don't see zero adding thermal management anytime soon. The weight and space required would cut their advertised range, and general consumers don't know or care about active thermal management.

The design of the monolith is about getting that range number as high as possible, not for battery longevity, and there's no reason for Zero to change those priorities at the moment.


That's wrong

Manufacturers such as Energica and BMW have proven that passive cooling (with air) is easy to implement and efficient. This does not require money or knowledge.
The main problem of Zero in fast loading is simply the tension !!! At 116 volts and over 7kW charging line just too much power is flowing that generates heat !!!
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hubert

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Re: Zero SR/F
« Reply #43 on: January 06, 2019, 07:12:42 PM »

SR means "Fast"
/F means "& Furious"
 ;D
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caza

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Re: Zero SR/F
« Reply #44 on: January 06, 2019, 09:58:43 PM »

That's wrong

Manufacturers such as Energica and BMW have proven that passive cooling (with air) is easy to implement and efficient. This does not require money or knowledge.
The main problem of Zero in fast loading is simply the tension !!! At 116 volts and over 7kW charging line just too much power is flowing that generates heat !!!

Money or knowledge, no, materials, space, and weight, yes. The cheapest energica is several grand more than the most expensive zero and their advertised range for "eco" mode is half of what zero says for city speeds. Their reported highway range is also about half of Zeros.

The i3 is extremely expensive for the range it provides as well.

I'm not saying zero cannot add thermal management, I'm saying that it would require a sacrifice in range, price, or both, and that zero is unlikely to take that tradeoff.

Is it "easy?" I suppose so, everything is relative. But no matter what your solution is, it's going to take up space and it's going to take up materials. Zero often pride themselves in having the most energy density, and they do that by cramming their batteries as close together with no active management. Without the bike getting bigger adding anything inbetween, even just channels for air, is going to take up space and lead to less cells in the monolith.

I'm not saying it isn't possible, I'm not even saying it's a bad idea, just that doing so would be against Zero's current strategy.

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