My Motocicletta: MV-QSX8000 (DPX) update
MV-QSX8000 (DPX) is a modification of the MV-DPX from Wuxi Sachi Motors
Posts
Electric Motorcycle Range (1)
From Christian Vogler Engineer for concept design and performance for motorcycles "What is the maximum possible driving range of #electricmotorcycles in legislative drive cycles with a certain battery capacity? Here's the answer! And more importantly, do you agree?" I was going through the different speed profiles to test the electric range of an #electricmotorcycle in the EU and the USA. And what I found was quite surprising. The cycles show a nearly identical energy demand! With energy demand I mean the energy which is actually needed to propel the vehicle along the speed profile. I did not consider any drivetrain efficiencies and all braking power is considered to be recuperated. Here's the full list of assumptions: 1 - EU drive cycle is a WMTC (part 1, 2 and 3) which is continuously repeated according to EU Reg No 134/2014 2 - US drive cycle is according to SAE J2982 a continuously repeated city cycle and a constant speed test at 70 mph (113 km/h) 3 - As there ...
15 mile loop
I've been taking measurements from various battery supplies and EV configurations for around 4 years. The goal is to get a sense of the battery performance on different platforms. It's been very informative. Each platform has its own characteristics for performance and of course uses different amounts of power over the same course of terrain. Some of the bikes reach efficiencies as low as 12 watts per mile, making a 12 AH (~420 watt/hours) battery have a theoretical range of 35 miles. Most interesting is the value of performance of a platform vs. its consumption. Course surface has a big effect on the outcome. So one can say that these applications differ greatly but are all viable for transportation when cost and performance are seriously considered. chrg, dischrg, watts, time, miles, etc. One example of this is a 3.5 mile course with elevation change of ~900 feet can be completed by the EX1.AWFS(48volts) in 7:30 seconds with an ~speed of 27 miles/hour with a consumption u...