Is there any functional safety standard applicable to commercial heavy-duty trucks similar to ISO 26262? the problem is ISO 26262 is applied on vehicles less than 3500 kg.
However, there are couple of standard for "Electrically propelled road vehicles" and "Fuel cell road vehicles" (ISO 6469/12405/17409/23273) which are applied to commercial heavy-duty trucks as well
The SAE J1939 Functional Safety only provides the technical requirements for implementing J1939 Communication Protocol, it does not cover the HW, SW, risk management and ...
ISO 26262 is an application-specific breakdown of the basic standard ISO 61508. ISO 61508 in itself applies for any functional safety "issue" - regardless of the application area.
And even if ISO 26262 is formally restricted to vehicles < 3500 kg, the principles developed there apply very well for heavy duty vehicles.
You may have to rate some hazards higher with the increased weight, but hazard analysis is anyway project-specific.
It was my plan to follow ISO 26262 since most of the principles are applied for heavy-duty applications as well. I just wanted to make sure there is no other standard and I'm not duplicating.
The upcoming revision of ISO 26262 is also applicable to heavy duty trucks (as well as motorcycles). The revision is in the state "Final Draft International Standard", so no major changes will occur before official publication.
I am not sure about this (I think not earlier than 2018), however you can refer to the Final Draft International Standard which is already available, as the final version will differ from the FDIS only in minor changes regarding typos etc. as far as I know
That's great, so we can start applying ISO26262 (current version) to our heavy-duty applications so by then, we'll have some sort of applied functional safety standard which might need minor changes.
ISO 26262 has been the functional safety standard for electrical and electronic passenger car systems since 2011, and ensures that the rising number of electronic functions and corresponding electronic control unit (ECU) software remain functionally safe.
So far the automotive international standard ISO 26262 for the development of safety relevant electrical and electronic components is used for vehicles up to 3500 kg gross weight. The foreseeable extension of this standard to heavier commercial vehicles will have effects on vehicle manufacturers and their suppliers. The medium-sized enterprise Mobil Elektronik has already organised itself accordingly and develops its auxiliary steering systems ISO 26262 compliant. For automobiles this series of standards was transferred and adapted into the standard ISO 26262. The standard includes an automotive-specific risk-based approach for determining risk classes, so-called ASIL levels. The basis for a successful implementation of the standard is a continuous, usually new, process landscape of the company in line with the ISO 26262.
Manufacturers of vehicles with more than 3500 kg total weight will be forced for the medium term to accept the new regulations and to comply with the ISO 26262 standard. Although the ISO 26262 is currently still limited to road vehicles with maximum 3500 kg gross weight it becomes apparent that many commercial vehicle manufacturers have started implementing the standard by now. If an ASIL safety level is specified instead of an established SIL in the specifications for electric and electronic components, which usually are supplied externally, it then has direct effects on the supplier who also has to comply with this safety.
The ISO 26262 safety standard highly challenges companies since implementation is expensive and time-consuming. To keep costs within limits, the standard offers the option to adapt tailor-made the required processes to the requirements. While automotive manufacturers patiently await the release of the second edition of ISO 26262 and the greater clarity that it should provide, there is an entire industry waiting with baited breath: Truck and Bus (T & B).