AVL Focus - Issue 2024

The Challenge

The Mercedes-AMG S 63 E PERFORMANCE, with a combined

output of 590 kW and a torque of 1,430 Nm, is the German

manufacturer’s most powerful S-Class model yet. The sedan

version is a globally approved high-performance plug-in hybrid

electric vehicle (HP-PHEV) from Mercedes-AMG with a P3

architecture. This means that the AMG 4.0-liter V8 biturbo

engine is supported by a permanently excited electric motor

located on the rear axle.

During development of the vehicle, electrifying the powertrain

with P3 architecture was a complex technical challenge.

Especially as the AMG S-Class model must meet the highest

standards in terms oJ sTortiness, comJort, and eƾciency.

Development and validation had tight deadlines and very

few physical prototypes. Further challenges of the project

included the simultaneous global market release (Western

Europe, China, Japan, the USA, and the rest of the world) and

meeting the respective emission standards, for example,

the European RDE legislation (Real Driving Emissions), the

emission standard China 6b, and the US guidelines for ultra-

low-emissions vehicles (ULEV 50 ready).

* First vehicle at AVL till end of development

The Solution

Mercedes-AMG and AVL have been collaborating successfully

on various projects for more than ten years – with the scope

of the project constantly growing. The German sports car and

performance brand is a highly dynamic customer for whom

%:0 oJJers ƽe\iFle and reliaFle solYtions at sLort notice.

In the joint development of the Mercedes-AMG S 63

)ɸ4)6*361%2'), %:0 assYmed resTonsiFility Jor several

areas. These included the calibration of the hybrid powertrain,

its operating strategy, the system model installation, the

JYnctional test, tLe definition and validation oJ tLe 3&( system

(on-board diagnosis), as well as the calibration of thermal

management.

For the validation of the various areas of responsibility, AVL

defined a comTreLensive test Trogram tLat was e\ecYted

systematically. To ensure that the Mercedes-AMG S 63 E

PERFORMANCE could be further optimized even in very late

phases of development, in addition to conventional tests

on the powertrain testbed, AVL opted primarily for virtual

methods with Hardware-in-the-Loop (HiL) and Software-in-the-

Loop (SiL).

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