Audi Entry MIB, Обучение по обслуживанию

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Note
If the electronic information systems control unit 1 J794 is replaced by an Audi dealer, it is replaced with an identical control
unit offering the same features.
Introduction
Why does Audi use the Modular Infotainment System?
Due to the high pace of development in the field of multimedia
applications, keeping up to date with the latest advances is a
growing challenge for car makers. One example is that many
mobile phone manufacturers update their top-of-the-range
products every year while also extending the software functional-
ity. Car owners, in turn, want to be able to connect the latest
mobile phones to the in-car entertainment and communication
systems.
To keep up with the speed at which requirements are changing,
the development cycles for information and entertainment
equipment in the automotive industry have to be made shorter as
well.
To make that achievable, the electronic information systems
control unit 1 J794 has been designed as a modular unit. That
means that in future new designs will only need to be produced
for some control units while other hardware can be retained.
Thus the components that are not subject to such rapid develop-
ment, such as radio tuners or audio amplifiers, can remain as they
are.
Put simply, that means that only the computer (MMX board) in
the electronic information systems control unit 1 is upgraded. The
MMX (Multi Media Extension) board itself is equipped with an
Nvidia dual-core processor on the Audi A3 '13. Specifically, it is
the Tegra T20 unit which has a clock speed of 1.2 GHz.
If the MMX board is upgraded in the future, the changes required
can be compared with replacing the motherboard and graphics
card in a home PC to make it "faster".
The software for the MIB is also modular in design so that in the
future both "old" and "new" software will be used together on a
new control unit. The "old" software might then be the CAN data
protocol, while applications such as the Bluetooth profiles are
likely to frequently require the development of "new" software.
Schematic diagram of MMX board