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> Subaru’s problem is that no such standardized system yet exists, forcing it (and eventually other brands) to have to nix its Starlink telematics offerings and
by aetherspawn 5y ago
> Subaru’s problem is that no such standardized system yet exists, forcing it (and eventually other brands) to have to nix its Starlink telematics offerings and related data harvesting.
It does exist, it's called J1939 and it is popular already in trucks and non european truck-like consumer vehicles i.e. pickups.
It also allows the effortless integration of aftermarket systems like F+R sonar emergency braking, trailer ABS units, radar cruise, low speed acoustic devices and various other bolt-ons like power take-offs.
In fact, it's this standardization that allowed some hundreds of third party fleet telematics systems to plug into virtually any OE vehicle and pull out a whole bunch of useful data, such as the odometer, fuel level, road speed, torque request and selected gear.
It does however currently lack useful standardization for electric vehicles. They can fit within the standard, but there is no standard way to read the voltage of a particular cell in one of the vehicles' many battery packs, for example. Or the state of charge or battery wear as a whole. I think this contributes to the high integration effort in EVs at the moment. Or why you see few upfitters doing custom bodies for EVs. Things could be a lot more .. plug and play.
- hirundo 5y agoDoes this system allow me to turn telematics off? I'm less interested in reading it than blocking it.
- aetherspawn 5y agoThe telematics are on a layer above J1939. If you think of J1939 like HTTP/REST (and standard response formatting), then the telematics would be a client on the vehicle. You could find the telematics control unit and unplug it, I suppose. Many fleet owners buy vehicles without default optioned telematics and pick their own. I don't think the argument is the invasion of privacy with telematics, but rather, that mechanic shops would like to access the vehicle data for diagnostics, which they can do if it is according to a standard.
- autotech 5y agoJ1939 or CAN is a network protocol many vehicles use for control module to control module communication. The “standardized system” you were commenting about is referring to access to the server side info. Currently manufacturers can pull telematics data like odometer, trouble codes and PIDs (data items like speed, brake status and very much more) which helps with service reminders and streamlining the repair process. Aftermarket shops are at a great disadvantage in this regard.
- maxerickson 5y agoJ1939 is layered on top of CAN. You can have CAN that isn't J1939.