In the latest technical reference under point 22.h.iii you describe the drive cycle. There has been a question about this point before, but was not fully answered to our understanding. The drive cycle is created …
Month: February 2019
Should the speed limit of 2500rpm be enabled during the “field test on actual bicycle”?
At present, we expect that the 2500 rpm limit to be enabled during the field test.
Continuous output power?
In order for the device to provide continuous output power of 500W the motor would need to run at around 3750rpm. (Power of the electronic load = Xrpm/3000rpm *40V*10A). What is the purpose of the …
Are there specific simulation and experimental results that should be provided in the progress report or we should enclose the most striking ones based on our own choice?
Will there be a more detailed description of the required contents of the progress report as there was for the Design proposal or will there not be anymore updates on the document which contains guidelines …
Under which operating conditions will the hot spot and case temperature be measured?
It would be reasonable to assume that the hot spot and case temperature test would be performed with the device running at maximum continuous output power of 500W, but it has been stated that the …
What is meant by “enter fault mode” at free acceleration test (most recent Technical Reference Document 22f)?
It has not been specified what’s supposed to happen in the fault mode. Should we turn the device off when the speed reaches 2500rpm or just prevent the device from working at speeds above 2500rpm? …
How will the fault protection be tested? How will it be judged?
When the fault conditions are reached, the system will have to provide an indication should be made as required in the technical reference document item 14.E. How the system responds to the fault event to …
Drive cycle and range performance test?
With a selected output power as specified under 22.b.iii and the specified speed limit of 2500rpm there is a maximum output power (of the electronic load) which can be calculated as 2500rpm/3000rpm*40V*Iout. The throttle signal …
What’s the dead time of Progress Report
March 7th 2019
Workshop-the 17th or the 19th of March?
In the provided IFEC Workshop agenda it is stated that the workshop takes place on the 17th of March. In the post about announcement of the second round competition teams it is stated that the …