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Author Topic: power rating of Energica Ego.  (Read 161 times)

SM

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power rating of Energica Ego.
« on: October 30, 2017, 12:42:41 AM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?
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Doctorbass

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Re: power rating of Energica Ego.
« Reply #1 on: November 15, 2017, 11:01:11 AM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

I think it depend in teh interpretation of  what is exactly "CONTINUOUS"..

The Continuous that Zero use i think it mean a test that  validate witch power that all components can't see any increase  of a single degree C... so at 28hp, the Zero dont increase by a degree celsius on any components ( controller, battery, motor etc) ... but for other company like energica, that "continuous"  might be 45 minutes....

in other words that is related to a power that get stabilized temp the entire system can operate at

Doc
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MrDude_1

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Re: power rating of Energica Ego.
« Reply #2 on: November 15, 2017, 07:49:46 PM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

I think it depend in teh interpretation of  what is exactly "CONTINUOUS"..

The Continuous that Zero use i think it mean a test that  validate witch power that all components can't see any increase  of a single degree C... so at 28hp, the Zero dont increase by a degree celsius on any components ( controller, battery, motor etc) ... but for other company like energica, that "continuous"  might be 45 minutes....

in other words that is related to a power that get stabilized temp the entire system can operate at

Doc

to further that, some less-than-reputable makers will call something continuous because the battery supplied is so small that before it could overheat, the battery needs to be recharged...  So if you use a larger battery then they "tested" it with, you can overheat it.

also another point... if its watercooled, its possible to build a cooling system that will keep it cool, even if a huge amount of the power is turning to heat.
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kashography

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Re: power rating of Energica Ego.
« Reply #3 on: November 16, 2017, 12:38:54 PM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

How I get this:
Continuous power gets measured over a period of time with full throttle. I dont remember how long it was, but it's not that short.
Because zero's motor is air-cooled, the power cuts back after some time to prevent overheating (with the newer models later then with the earlier motors, what explains the rise in continous hp). Energica has an oil-cooled motor that wont overheat, so you can get the full power over the whole test-period. This explains the differences.

edit: to your info: in my country (Switzerland) and general in Europe, the continuois power gets measured always the same way. The manufacturers can not make their own rules to measure it as suggested above. But i dont know how US handles it
« Last Edit: November 16, 2017, 12:41:56 PM by kashography »
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MrDude_1

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Re: power rating of Energica Ego.
« Reply #4 on: November 16, 2017, 09:04:59 PM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

How I get this:
Continuous power gets measured over a period of time with full throttle. I dont remember how long it was, but it's not that short.
Because zero's motor is air-cooled, the power cuts back after some time to prevent overheating (with the newer models later then with the earlier motors, what explains the rise in continous hp). Energica has an oil-cooled motor that wont overheat, so you can get the full power over the whole test-period. This explains the differences.

edit: to your info: in my country (Switzerland) and general in Europe, the continuois power gets measured always the same way. The manufacturers can not make their own rules to measure it as suggested above. But i dont know how US handles it

Theres no diff between what you said and what I said... the "power gets measured over a period of time with full throttle.".... its just whatever that time is.
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Richard230

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Re: power rating of Energica Ego.
« Reply #5 on: November 17, 2017, 01:59:17 AM »

Trying to understand the issue of power, electric HP.  I understand the Energica EGO has a monstrous 145HP continuous power rating while the Zero SR is rated at only 28HP continuous power.  I don't think I go the right number from Energica though because the Zero SR's 28HP continuous rating translates into 70HP peak.  Does the EGO have a 300HP+ peak power rating. Could anyone shed some light on this?

How I get this:
Continuous power gets measured over a period of time with full throttle. I dont remember how long it was, but it's not that short.
Because zero's motor is air-cooled, the power cuts back after some time to prevent overheating (with the newer models later then with the earlier motors, what explains the rise in continous hp). Energica has an oil-cooled motor that wont overheat, so you can get the full power over the whole test-period. This explains the differences.

edit: to your info: in my country (Switzerland) and general in Europe, the continuois power gets measured always the same way. The manufacturers can not make their own rules to measure it as suggested above. But i dont know how US handles it

My recollection is that when it comes to range, the U.S. electric motorcycle manufacturers made up, and agreed upon, their own standard for riding at highway speeds.  The exception, I believe, is for the "city cycle" which is a government standard.

Regarding power and top speeds, here is what Zero claims for the 2018 Zero S in their owner's manual for Europe:

Estimated Top Speed
(max)
86 mph (139 km/h)
Estimated Top Speed
(sustained)
80 mph (129 km/h)
Motor Net Torque
(According to UNECE
Regulation No. 85)
• ZF7.2: 80 lb·ft (108 Nm)
• ZF14.4: 80 lb·ft (109 Nm)
Motor Net Power
(According to UNECE
Regulation No. 85)
• ZF7.2: 31 hp (23 kW)
• ZF14.4: 59 hp (44 kW)


And here is what they say for the say for the 2018 Zero S for "The Rest of the World.  Interestingly, power and torque output is not listed under this category of specifications:

Estimated Top Speed
(max)
• ZF7.2: 91 mph (146 km/h)
• ZF13.0: 98 mph (158 km/h)
Estimated Top Speed
(sustained)
• ZF7.2: 80 mph (129 km/h)
• ZF13.0: 85 mph (137 km/h)


However, Zero's website claimed specifications list the following power and torque for the 2018 S model.  I'll let someone else respond to why there are differences in Zero's various published specifications:

81 ft-lb (110 Nm)
60 hp (45 kW) @ 5,300 rpm
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2016 BMW R1200RS, 2011 Royal Enfield Bullet 500 Classic, 2009 BMW F650GS, 2005 Triumph T-100 Bonneville, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.
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