Technology
Zonal ring architecture
What replaces the harness and the fixed set of ECUs: a single ring for power and data, and modules placed by proximity.
In one sentence ASG routes power and data around a single ring, with every component attaching to the nearest zone module inside a fixed wire-length budget.
One ring, power and data
The channel is a single closed loop routed through the vehicle volume. The same conductors carry power and data, so the ring replaces both the signal buses and much of the power distribution at once.
Zonal, by proximity
Every node attaches to the nearest zone module that is within its wire-length budget and has spare capacity. If no module qualifies, one is added. This territorial rule is a hard constraint, so spatial layout, not capacity alone, drives how many modules a vehicle needs.
What it changes
One ring instead of several buses and separate power distribution, and universal modules instead of function-specific ECUs. The figures are vehicle-dependent and each is derived on the methodology page; a full worked example is the compact-car integration.
The parameters
| Channel | Single ring | A closed loop routed through the vehicle volume |
|---|---|---|
| Ring length | ≤ ~30 m | The loop itself |
| Branch length | ≤ 1.5 m | From a node to its zone module |
| Carries | Power + data | Same conductors, PLC over 12 / 24 / 48 V |
| Attachment rule | Nearest module in budget | And with spare capacity, else a module is added |
Parameters are from ASG’s protocol description.
Questions
How is the number of zones decided?
It is derived, not chosen. The planner finds the fewest modules such that every node stays within its wire-length budget and no module is over capacity. Engineers can hand-place extra modules; re-planning derives the set again from scratch.
Is it literally a ring?
Yes, a single closed loop routed through the vehicle, carrying power and data on the same conductors.
What is the wire-length budget?
Branches of up to about 1.5 m from a node to its nearest module, on a ring of up to about 30 m.
What happens when a node is out of range of every module?
A module is added near it. Territorial proximity is a hard constraint, so the layout drives the module count rather than the other way round.