New type of graph?
Hi,
what do you think of this new type of graph. Better (more readable) than the old one?
Year: 2015
Version 1.08 (2015.12.13)
Most prominent change is the driving screen now showing braking torque, with the bar extending to the left, and an aiming point for maximal motor based braking. This is more of a feed-forward instead of the old feed back system with the red Friction Braking (avoid) bar now for you to peruse.
And of course there were a couple of strange bugs and spelling errors that we fixed.
Version 1.07 (2015.12.06)
Today’s release contains, among others, a few serious bugfixes. In the previous versions switching between the different screens filled up the field request list, which slowed down considerably the entire application. This has now been solved.
Another feature that has been added is that Main, Technical and Experimental fragments can now be accessed by simply sliding the entire page to the left of the right. You may also notice some graphical improvements.
Last big change I want to point at is the new Tires activity where those of you who have TPMS installed can read out the actual pressure of the 4 wheels.
CanZE blog goes SSL
Thank’s to Let’s Encrypt the CanZE blog now goes SLL. Feel free to switch …
Fast charging guidelines (for Zoe)
When time is money (both re. your own time as well as how the operator calculates the rates), the following guidelines will help you, especially in winter. The’re all fairly obvious:
1. Try to avoid fast-charging starting at a high SOC to avoid entering the area where the car squeezes the charging power. This squeezing can start as low as 35% SOC when it is cold. Drive as far as possible to keep the charging power high for as long as possible.
2. Try to charge with the highest possible battery compartment temperatures. As driving increases the temperature substantially, try to fast-charge at the end of a drive, not i.e. the following morning. Fast charging itself also increases the temperature.
3. Quit fast charging as soon as you can. If there is a slow-charger at your destination, just fast charge until you can reach it. This ensures fast-charging at the highest possible power and trades “real” waiting time (twisting thumbs) against “virtual” waiting time (car is charging for a longer time, but you’re not waiting for it doing nothing).
A rule of thumb is that squeezing from 43 kW starts at 30% SOC plus twice the battery compartment temperature for a Q210, and from 22 kW at 65% SOC plus the battery temperature for an R240. Note that this is for the 22 kWh battery. The 41 kWh battery behaves substantially different, but we don’t have enough data yet.
Release schedule change
With less new functions being added, a focus on getting things more stable and life beyond things CanZE requiring at least some attention, we are changing our release schedule. Today’s release will be the last mandatory Sunday release and we’ll decide on a per-case basis if a new release is warranted.
Version 1.06 (2015.11.29)
Version 1.06 (2015.11.29) is now online on Github and shortly in also available through the Google Play Store.
We are still working on the compatibility issues with the Kangoo and even got a request to check the Twizy. So a lot of work still in progress.
Also check the experimental section as we try to read out the tires pressure … for those of you that have sensors. Any feedback on this is highly appreciate as none of us has those sensors installed …
Teaser for the weekly build 9
Not many visible changes this week. Small changes on the charging and driving screen based on user feedback. In the experimental section, we added s tyres screen for cars equiped with TPMS. If you happen to have this feature on your car, give it a spin and let us know the results through github please (issue #235).
Under the hood we’re still working on strange Bluetooth instabilities and getting things back on track for the Kangoo and Fluence, which needs a lot of research.
We’re also working very hard on getting all the info we have (and not just the fields we use in CanZE today) in our database. It is a lot of tedious, lonely work but it is needed to move on.
Teaser for the weekly build 8
You will not find many obvious changes this week’s release. We’ve taken a small step back from the rather crazy development cycle and the rest of our efforts have been focussed on fixing issues.
It seems we’ve been pushing the ELM a bit too hard; CanZE appears to freeze now and then, though it is usually the communication between the CanZE and the ELM. Please know it has our full attention, but it’s a hard one to crack as it’s really a bit of a random issue. We believe we’ve made some improvements though. Keep us updated (through github please!) and send us your logs please as it helps is pinning down what’s going on.
We’ve split the “Experimental” section into “Experimental” and “Technical”. Technical contains screens that should work, but are for the users that want to dig a bit deeper. At the same time, we’re cleaning up the “Main” activities to only display the information that matters most.
The Cell Voltages Heatmap has a new function that you should actually never see: if a cell turns bright red, it means it has a serious problem. The algorithm used is borrowed from Nissan: If the delta between the mean and lowest cell voltage is greater than then 1.5 times the delta between the mean and the highest cell voltage, it is considered bad. This check is only valid (and will only be performed) if the pack’s SOC is roughly 25% or lower.
EDIT: I was not aware that the Leaf uses a different chemistry for the battery than the Zoe. The red cell algorithm used may, or may not be valid. Don’t rely on it.
Here is a (faked) example
Have a great remainder of your weekend!