måndag 29 augusti 2016
söndag 21 september 2014
In the background, the Sevcon gen4 controller size 4.
måndag 5 augusti 2013
Energy density: 9,7kwh/l
Diesel engine efficiency: 30%
fredag 19 juli 2013
If, for example, I am out fishing and I noticed that my batteries are running low I can charge while driving back home using the combustion engine. This regen functionality guaranties in an easy way that I won't run out of energy in my battery.
lördag 13 juli 2013
A petrol/gasol generator would probably be the quickest way to charge. The downside is noise, local pollution and complexity. I don’t like the idea of burning fuel in order to create electricity.
By using solar panels electricity can be harvest from the sunlight. No moving parts and no noice. The downside is the efficiency of the panels and the dependency of cloud free weather. To get a usable charge current I would have to use about 3-4 square meters of cells, given that there is no clouds.
Using the wind to harvest electricity is common in these areas. Modern wind generators are efficient with a moderate wind force demand. What you need is a generator, small tower and an extension cord.
And the winner is…. The wind generator! Given that we normally have a couple of days with winds around 8-10ms I should be able to get some energy into my batteries. Since I run a 48 volt system I need a 48 volt wind generator. Fortunately Southwest Windpower makes a small, 120cm diameter, generator with an integrated controller. The controller makes sure that the batteries receive the correct voltage while charging.
Have a nice vacation, I know I will.
tisdag 4 juni 2013
I have created this blog in order to share some light on another market that is extremely big in Sweden, leisure boating. Sweden has more than 900 000 leisure boats and an archipelago that consists of over 30 000 islands.
Innovation in the marine market has in no way followed the pace of the car industry. In order to speed up innovation I started a journey which goal was to create a marine hybrid drivetrain for my boat Linnea.
The size of the battery pack determines how long we can run the boat using electricity. When we want to go further than the battery pack allows we use the combustion engine.
The electric motor has many benefits compared to the combustion engine, one is the ability to act as a generator. This enables us, by the push of a button, to charge the battery pack while running the combustion engine. This secures that there is always energy available for docking the boat when we reach our destination.
#hybrid #ev #hybridboat #leisureboating #archipelago #sevcon #motenergy #LiFePO4 #GreenlandHybrid #drivetrain #electric #zev #windpower