ElectricMotorcycleForum.com
Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: Jarrett on January 22, 2019, 12:17:04 AM
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I noticed up until the 2017 models, Zero used to include 0-60 specs with each model on their website. It seems after that point, they quit doing it.
I wonder if there is another place to get up to date 0-60 specs on 2017+ models out there somewhere?
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I noticed up until the 2017 models, Zero used to include 0-60 specs with each model on their website. It seems after that point, they quit doing it.
I wonder if there is another place to get up to date 0-60 specs on 2017+ models out there somewhere?
Do you have info. on the 0-60 on the 2016 SR?
-Don- Auburn, CA
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I noticed up until the 2017 models, Zero used to include 0-60 specs with each model on their website. It seems after that point, they quit doing it.
I wonder if there is another place to get up to date 0-60 specs on 2017+ models out there somewhere?
Do you have info. on the 0-60 on the 2016 SR?
-Don- Auburn, CA
3.3 seconds, per Zero’s web site. https://www.zeromotorcycles.com/zero-s/2016/specs.php
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Hello
This is probably because the acceleration values ​​are only reached at 100% battery.
With less than 50% SOC of the battery, the acceleration values ​​are drastically reduced. :o
There probably have some Zero Bestitzer won in court. ::)
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Hello
This is probably because the acceleration values ​​are only reached at 100% battery.
With less than 50% SOC of the battery, the acceleration values ​​are drastically reduced. :o
There probably have some Zero Bestitzer won in court. ::)
I was surprised to see the difference the power tank made in the acceleration, I assume because of the extra weight.
Perhaps that is why my non-R DS 6.5 accelerates noticeably faster than my SR when both are in the eco mode.
Sport Mode is a much different story, of course.
-Don- Auburn, CA
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In theory : acceleration x mass = torque * demultiplication / radius - friction and speed = acceleration * time (if constant)
With a 72 kg driver assuming friction is zero (just to get the order of magnitude)
SR = 157 Nm, 17 inchs (0.43 m), weight with driver = 260 kg, demultiplication = 90 / 20
==> acceleration factor = 6.3
time for 60 mph (= 26.8 m/s) : 4.2 (3.9 with a 50 kg driver), and 4.5 with a powertank (+20 kg)
FXS = 106 Nm, 17 inchs, w = 205 kg with two batteries, 186 with one, demultiplication = 90/ 18
==> af = 6.62 with one battery, 6.01 with two batteries
time for 60 mph = 4 s woth one battery, 4.4 with two
For the SR you need a 0 kg driver to reach 3.1
I think this explains why they stopped mentioning these figures - they assume no driver and no friction !
Hello
This is probably because the acceleration values ​​are only reached at 100% battery.
With less than 50% SOC of the battery, the acceleration values ​​are drastically reduced. :o
There probably have some Zero Bestitzer won in court. ::)
I was surprised to see the difference the power tank made in the acceleration, I assume because of the extra weight.
Perhaps that is why my non-R DS 6.5 accelerates noticeably faster than my SR when both are in the eco mode.
Sport Mode is a much different story, of course.
-Don- Auburn, CA
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Moto, are you saying based on torque to weight ratio that the FXS is the quickest to 60?
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On the paper, with no added battery and a 72 kg driver, and assuming a constant torque.
But when you look at the numbers for FXS (https://www.zeromotorcycles.com/zero-fxs/2016/specs.php), they tell you that 0-60 is SMALLER with a larger battery - there seems to be a missing variable, probably using the two packs in parallel to provide more power...
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On the paper, with no added battery and a 72 kg driver, and assuming a constant torque.
But when you look at the numbers for FXS (https://www.zeromotorcycles.com/zero-fxs/2016/specs.php), they tell you that 0-60 is SMALLER with a larger battery - there seems to be a missing variable, probably using the two packs in parallel to provide more power...
The limiting factor is the amperes from the batteries. The FXS with one battery pack have limited max ampere vs. FXS with two battery packs.
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The limiting factor is the amperes from the batteries. The FXS with one battery pack have limited max ampere vs. FXS with two battery packs.
How will that affect it?
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The limiting factor is the amperes from the batteries. The FXS with one battery pack have limited max ampere vs. FXS with two battery packs.
How will that affect it?
I based my assumption on peak power. on FXS specs it's written that max peak power of single battery pack is 20kW and double battery pack is 34kW and power is roughly Volts * amperes, so if Volts are the same for both FXS, Amperes should be less on the single battery pack.
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What puzzles me is that if they have different power rating, and power = torque x distance, how can they share the same torque ?
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Well, an EV is easy to do 0-60 mph(100km/h) because you don't have too shift like a pro, just go.
Now we only need owners posting vids.
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0-60 time et quarter mile calculation : https://www.cognitoforms.com/Non81/_060TimesCalculator
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2018 SR with just a slight modification I hit 3 seconds or maybe a skosh under.
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What modification ?
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My FXS 2016 6.5kWh is given for 3.8s.
But with the battery fully charged and after several attempts, my best time was 4.87s for 0-60 mph, 5.14s for 0-100 km/h, and 10.2s for 0-137 km/h (max speed).
I am weighting around 70 kgs.
Recorded with PerfExpert Android app: https://network.perfexpert-app.com/results/iWvWRmUF5z
It seems that Zero's times are very optimistic !
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My FXS 2016 6.5kWh is given for 3.8s.
But with the battery fully charged and after several attempts, my best time was 4.87s for 0-60 mph, 5.14s for 0-100 km/h, and 10.2s for 0-137 km/h (max speed).
I am weighting around 70 kgs.
Recorded with PerfExpert Android app: https://network.perfexpert-app.com/results/iWvWRmUF5z
It seems that Zero's times are very optimistic !
Zero wouldn't be the first manufacturer to advertise performance claims that are tough to duplicate in the real world. However, I will say that I am impressed that Zero's range claims are pretty close to what most of their customers seem to achieve.
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I have added to my bike calculator a section for computing the theoretical acceleration :o
See attached
Of course, it assumes a lot of unrealistic things, mainly:
- constant torque in all the range of speed
- no losses in the transmission
- no forces opposed to the progression (i.e. the bike is in vacuum ;D, the tires do not waste any energy)
- only the translational kinetic energy is considered (the rotational kinetic energy accumulated by the wheels is neglected)
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On most ev’s at a certain speed the hp stays the same and the torque decreases. (When accelerating)
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I think there is a mistake - the size of a tire is the external radius. So you dont need to add the tire's width...
I have added to my bike calculator a section for computing the theoretical acceleration :o
See attached
Of course, it assumes a lot of unrealistic things, mainly:
- constant torque in all the range of speed
- no losses in the transmission
- no forces opposed to the progression (i.e. the bike is in vacuum ;D, the tires do not waste any energy)
- only the translational kinetic energy is considered (the rotational kinetic energy accumulated by the wheels is neglected)
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My FXS 2016 6.5kWh is given for 3.8s.
But with the battery fully charged and after several attempts, my best time was 4.87s for 0-60 mph, 5.14s for 0-100 km/h, and 10.2s for 0-137 km/h (max speed).
I am weighting around 70 kgs.
Recorded with PerfExpert Android app: https://network.perfexpert-app.com/results/iWvWRmUF5z
It seems that Zero's times are very optimistic !
Zero wouldn't be the first manufacturer to advertise performance claims that are tough to duplicate in the real world. However, I will say that I am impressed that Zero's range claims are pretty close to what most of their customers seem to achieve.
Technical data of a 2017 DSR
Peak power: 69PS (52kW)
Continuous power: 30PS (22kW)
The acceleration values that Zero indicates can only be reached once anyway because then the engine is too hot.
Only when the engine has cooled down you can try again.
With a higher voltage all this would be better!! A 750A controller only produces heat.
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For 0 - 60 times (ie 3 seconds) I suppose we can assume peak torque will be continuously available...
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And how is that supposed to work if the engine has already reached a temperature of over 200 F? :o
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Put an ice pack on the engin before starting your 0-60 ;)
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That's only Tesla doing to get on Pike Speak. :P
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Well you have ICE engines and ice engines...