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ODX at Volkswagen and Audi. Differences KWP versus UDS. ODX Begriffserklärung What sigifies „ ODX“?. ODX = O pen D iagnostic data e X change (ASAM/ISO-Standard). ODX describes all diagnostic data ,

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Presentation Transcript
slide1

ODX at Volkswagen andAudi

DifferencesKWP versus UDS

slide2

ODX Begriffserklärung

Whatsigifies „ODX“?

ODX = Open Diagnostic data eXchange (ASAM/ISO-Standard)

ODX describes all diagnosticdata,

whichisnecessaryforthedataexchangebetween (VAS) testequipmentandthe ECUs in thecar.

slide3

withISO TP / UDS / ODX:

Application

ISO-API

Calculation

commutabilitythroughstandardizedinterfaces

raughvalues

Sensors

Actuators

Motivation fortheintroductionof ODX

Whatischanging in the ECU andthetester

withKWP 2000 light plus

Application

VW / Audi-specific

Calculation

raughvalues

Sensors

Actuators

slide4

ComparisonKWP 2000 versus UDS / ODX

Visualisationofthefunction „readmeasurevalues“

old

?

actual: missinginformation

?

slide5

new ECU withISO UDS/ ODX

… withISO UDS/ ODX

withdescriptionandscaleunit

ComparisonKWP 2000 versus UDS / ODX

Visualisationofthefunction „readmeasurevalues“

new

anyselection

slide6

VAG-Codes.xls

ComparisonKWP 2000 versus UDS / ODX

ActuatortestwithKWP2000

Complicatedstatemachine in the ECU

Activate actuatortest

Ilumination

ECU response:

fix measurevalueblock

Motor for central locking

leaving home lights

lower window lifter

mirrorfunction

run up

window lifter

indicator(in the mirror)

85% Ein Aus Inaktiv

slide7

Ilumination

leaving home lights

Motor for central locking

lower window lifter

mirrorfunction

Indicator(in the mirror)

run up

window lifter

ComparisonKWP 2000 versus UDS / ODX

ActuatortestwithUDS / ODX

activate

actuator

ECU response:

Measurevalues

statemachine in thetester

slide8

ComparisonKWP 2000 versus UDS / ODX

Visualisationofthefunction– „selectivactuatortest“

… withUDS / ODX

KWP2000

actual: nofunction-inputpossible!

slide9

ComparisonKWP 2000 versus UDS / ODX

Visualisationofthefunction- Coding

new

old

actual: whatiscoded?

.. withISO UDS/ ODXplaintext