Abstract
Abstract—As FlexRay is implemented in production vehicles (e.g.
BMW X5 and 7 series) there is a growing interest within the
automotive industry in optimising its utilisation. FlexRay is
expected to become the standard network for backbone
communications, replacing CAN in this area. However the
complexity and cost associated with migrating from existing CAN
based systems and designs to FlexRay can prove to be a barrier
in its widespread adoption. One of the biggest problems in
optimising a FlexRay cycle is formalising the static segment and
dynamic segment parameters.
This paper describes a migration framework for the complete
migration from an existing CAN based application to FlexRay
based network. This migration framework defines the static (ST)
segment size by using basic CAN parameters and performing
task graph analysis. The resulting payload is defined before a
final ST frame size is obtained. The dynamic (DYN) segment size
is verified by determining the worst case response time of tasks
operating in this segment. A sample adaptive cruise control
(ACC) application is implemented to verify the framework.
| Original language | English |
|---|---|
| Publication status | Submitted - 2008 |
| Event | Advanced Automotive Electronics Show 2008 - Williams F1 Conference Centre, UK, Williams F1 Conference Centre, UK Duration: 03 Jan 0001 → … |
Conference
| Conference | Advanced Automotive Electronics Show 2008 |
|---|---|
| City | Williams F1 Conference Centre, UK |
| Period | 03/01/0001 → … |