  Vehicles generate a large amount of data from their internal sensors. This
data is not only useful for a vehicle's proper operation, but it provides car
manufacturers with the ability to optimize performance of individual vehicles
and companies with fleets of vehicles (e.g., trucks, taxis, tractors) to
optimize their operations to reduce fuel costs and plan repairs. This paper
proposes algorithms to compress CAN bus data, specifically, packaged as MDF4
files. In particular, we propose lightweight, online and configurable
compression algorithms that allow limited devices to choose the amount of RAM
and Flash allocated to them. We show that our proposals can outperform LZW for
the same RAM footprint, and can even deliver comparable or better performance
to DEFLATE under the same RAM limitations.
