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General Category => General Discussion => Topic started by: firepower on May 31, 2015, 10:39:44 AM

Title: SAE J2982 Riding Range City
Post by: firepower on May 31, 2015, 10:39:44 AM
I trying to find more info about City riding range, it seems to be based on the constant 55 mph test.
I would like to know how it is measured / calculated.

http://www.mic.org/downloads/MIC-recommended-practice-riding-range-test-procedure-for-on-hwy-electric-motorcycles-042412.pdf (http://www.mic.org/downloads/MIC-recommended-practice-riding-range-test-procedure-for-on-hwy-electric-motorcycles-042412.pdf)

Title: Re: SAE J2982 Riding Range City
Post by: hippiesparx on May 31, 2015, 11:09:20 AM
I get from Wavell Heights to Brendale (15k) with 95%, return I'm down to 91%.
Generally it doesn't take me very long to get there ;)
I get about 150 - 200km on the 11.4kWh battery scooting around town.
You can do the north end of the Gold Coast and return on one charge.
If you go into Nerang or Surfers a three hour charge will get you home.
I did Brendale - Maleny (back roads) return on one charge, rolling into the driveway dead stick.
Title: Re: SAE J2982 Riding Range City
Post by: firepower on May 31, 2015, 06:12:14 PM
Im in Wavell Heights too. :)
I know the ranges zero states , just want to know how they calculate city range, there must be some assumptions made for a model of city travel. 
Is it a simple ratio of constant 55 miles / 113km or is weight and acceleration of bike also used. city is a lot of stop start , acceleration and braking.
Ratio seems to be about 0.6214
Title: Re: SAE J2982 Riding Range City
Post by: protomech on June 01, 2015, 11:00:52 AM
City riding range is based on the EPA UDDS, which has an average moving speed of about 30 mph, gentle acceleration, and very brief operation up to 55 mph.
Title: Re: SAE J2982 Riding Range City
Post by: Richard230 on June 01, 2015, 09:22:05 PM
In other words, the Government's EV version of the IC vehicle "Highway" mileage figures.   ::)
Title: Re: SAE J2982 Riding Range City
Post by: firepower on June 02, 2015, 04:46:11 AM
Thanks for that info on EPA UDDS, its just a artificial model of city driving. No relationship to constant speed range test.