Search the Community
Showing results for tags 'safety reliability'.
Found 3 results
Hello everyone, I have a solowheel inmotion V10 and noticed that it's been getting kind of hot between my legs. I live in Denver and a few days out of the week have been around 98 degrees. It's mostly dry heat out here, but I was just a little worried if I should be riding when it's this hot out. This morning was 64 degrees, and when I checked my temp, it was at 102 degrees. What is too hot for a V10?
What brand and model is your wheel? How long have you been riding your wheel? How many days a week do your ride it? Has it ever cut-out unexpectedly while riding? What maintenance did you have to perform? I've been riding a 2013 solowheel classic everyday for 3 years, w/o any issues.. It has never cut-out unexpectedly. I have to replace the inner tire tube about every 14 months and had to solder a loose wire in the charger.
I would call it a mandatory product feature. Compared to automotive (he we're also vehicles?!) in the EU szene it looks like the best high sophisticated things you'll see are renderings and exploded drawings for our EUs. I bet there's currently no development process in any structured kind. And safety for sure is not a big concern. It's not a centric product feature. To handle the safety requirements you need to know the risks. The automotive industry had derived their own standard from IEC 61508 (functional safety) as the ISO 26262 (road vehicles - functional safety) with ASIL categories and failure levels. With FMEA you can dive deeper on components, interfaces, etc to show risks and how to prevent them. And there're more methods like FTA doing risk assessments to have a proper view. It's all about detecting errors or see errors rising and to react before a risk becomes an issue. I read this statement in a dissertation describing it in short words: - a situation with hazard should be recognised (diagnose) - after detection of the hazard there must be action to prevent an accident or reduce the heaviness of the accident (reaction) In German we make differences between meanings of Sicherheit (Secure), Security and Safety. Mixing German and English words give us a more granular description: Sicherheit (Secure) = secure against attacks (security) and secure operation (functional security => safety) Regulations/ laws stating that vehicles must be conduct to public street in a secure operational (safety) way. If you start with a development you need to shape you electric and electronic architecture (EEA) to fulfil the the safety requirements or to reduce complexity. Our EUs should always rely on this methodology to develop a safe and reliable product. Markets based on UN ECE regulations will need a basic analysis to prove the gov statement of redundancy and if in which components we really need it. I'm not sure if the current manufacturers can handle this by own as they're small. The manufacturers should work together with a University on some fundamental base work (EEA, ISO 26262, FMEA, FTA and Markov) to develop their products on this findings. To achieve this level we need a lot of time and may be some engagement from the western world. Safety today is more like an accident (not build by design).