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prototux edited this page Nov 8, 2021 · 1 revision

AEE Intro

What's an AEE

AEE stands for "Architecture Electrique et Electronique", "Electronics and Electrical Architecture" in english, and is the set of standards that defines a whole generation of car at PSA.

AEE defines the ECUs, protocols, some software interfaces, as well as the connectors, and is used to create the whole electrical and electronics design of a specific car of it's generation

AEE Generations and variants

Before AEE2001, there was no common standard at PSA, each car was a snowflake in term of electronics.

  • AEE2001, also called VAN+CAN, used a single CAN bus as well as 2 VAN buses, it was designed before 2001, but seems to be retroactively called AEE2001 in diagbox.
  • AEE2004, also called "FullCan", used 3 CAN buses as well as 2 LIN buses
    • AEE2004 ECO is a variant with less ECUs for cheaper cars
    • AEE2004 EV, also called AEE2007 is an extension of AEE2004 with small upgrades, mostly new ECUs
  • AEE2010, which is the current standard, uses more CAN and LIN buses to avoid network congestion due to the large number of ECUs
    • AEE2010 ECO, like the 2004 ECO architecture, it is used for cheaper car and has less buses and ECUs
    • AEE2010 EV, like the 2004 EV, it is an upgrade of the base AEE2010 with more buses and ECUs
    • AEE2010 EV ECO is the economy variant of the AEE2010 EV

Networks of AEEs

The AEEs uses differents buses to separate ECUs and avoid network congestion, with a star topology starting from the BSI.

AEE2001, AEE2004, AEE2004 EV, AEE2004 ECO

  • I/S: Inter-System bus, for the powertrain
  • CONF: Comfort bus, with elements such as the CMB and the CLIM
  • CAR: Carrosserie (body) bus, has ECUs like CDPL (there's 2 CAR buses in AEE2001)

AEE2010

It uses the same IS, CONF and CAR buses as AEE2004, but adds:

  • LAS: Liaison Au Sol: a sub-part of the I/S bus with ECUs related to suspensions
  • INFO/DIV: Information/Divertissement (infotainment), as the name imply, it has infotainement elements

AEE2010 EV

It adds two more buses:

  • ADAS: Newer bus that links the driving assistance systems
  • DEPOL: Depollution bus, connecting anti-pollution ECUs

AEE2010 ECO

It replaces the CONF and CAR buses with a single HABITACLE bus

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