// Elec­tri­fied Drive Systems

The Future of Mobi­li­ty Starts Now!

Elec­tri­fy­ing drive systems achie­ves two major goals: compli­ance with current emis­si­on legis­la­ti­on by mini­mi­zing CO2 release and a simul­ta­neous increase in driving comfort. APL has crea­ted a complex chain of methods to deve­lop opera­ting stra­te­gies and compon­ents for ener­gy-effi­ci­ent, emis­si­on-opti­mi­sed real driving.

Deve­lo­p­ment of Elec­tri­fied-Drive Concepts

Toge­ther with its custo­mers, APL is deve­lo­ping elec­tri­fied drives for hybrid, fuel cell and battery-elec­tric vehicles.

The focus is on deve­lo­p­ment of system compon­ents, in addi­ti­on to the over­all drive system and soft­ware deve­lo­p­ment & calibration.

Power­train electrification

Opti­mi­sa­ti­on of elec­tric motors

Analy­sis of ther­mal manage­ment and faults in the inverter

Battery inspec­tion and opimi­sa­ti­on conside­ring elec­tri­cal, ther­mal and mecha­ni­cal impacts

Measu­re­ments and simu­la­ti­ons from the battery cell to the comple­te system
Deve­lo­p­ment of System Components
In the deve­lo­p­ment and opti­mi­sa­ti­on of system compon­ents, function­al safe­ty and opera­tio­nal stabi­li­ty are the most crucial objec­ti­ves of all. APL uses state-of-the-art calcu­la­ti­on and simu­la­ti­on tools to achie­ve these objec­ti­ves. In addi­ti­on to our real-time measu­re­ment tech­no­lo­gies, accu­ra­te compo­nent measu­re­ment befo­re and after test­ing is essen­ti­al for detail­ed func­tion­al analy­sis and dama­ge assessment.
Battery Deve­lo­p­ment Through Test and Simulation
To opti­mi­se deve­lo­p­ment of the trac­tion battery, APL offers a compre­hen­si­ve port­fo­lio of test­ing and simu­la­ti­on. In order to demons­tra­te the decisi­ve syner­gies from the battery pack down to the cell level and their rele­van­ce in drive­train deve­lo­p­ment, various simu­la­ti­on methods, in-house models and commer­cial soft­ware packa­ges are utili­sed. These range from CFD calcu­la­ti­ons to ther­mal-elec­tri­cal and chemi­cal-physi­cal battery models to comple­te vehic­le simu­la­ti­ons. The know­ledge gained from simu­la­ti­ons is combi­ned to form a comple­te system over­view and further corre­la­ted with measu­re­ment results. This approach allows the design and opti­mi­sa­ti­on of battery systems in a holi­stic approach. The input para­me­ters can be deter­mi­ned and the models vali­da­ted by means of tests on APL’s in-house high-volta­ge test benches and the measu­re­ment of battery perfor­mance data during real operation.
Elec­tric Motor Development
The deve­lo­p­ment of elec­tric motors includes both basic design and test­ing. Calcu­la­ti­on models, such as magne­tic circuit simu­la­ti­on, are an essen­ti­al part of deve­lo­p­ment. The mecha­ni­cal deve­lo­p­ment of elec­tric motors focu­ses on the design of the rotor, lami­na­ti­on stack and housing as well as cooling concept and tribo­lo­gi­cal boun­da­ry conditions.
Basic Data Input and Func­tion­al Development
APL uses modern test systems and HiL networks for basis data programming of system compon­ents. The battery, power elec­tro­nics and elec­tric motor can be inte­gra­ted into the test envi­ron­ment with the goal of achie­ving best possi­ble effi­ci­en­cy, taking system limi­ta­ti­ons into account.

Using simu­la­ti­on models in a Matlab/Simulink envi­ron­ment and appli­ca­ti­on tools such as INCA Flow or AVL Cameo, data for basic func­tions, or more complex func­tions such as the rotor tempe­ra­tu­re model, can be input based on models and (parti­al­ly) auto­ma­ted. High demands with respect to precise torque control and repro­du­ci­b­le mapping of tempe­ra­tu­re beha­viour can be met on APL test benches.

Compe­ti­ti­ve analy­ses of hybri­di­sed and elec­tri­fied drives, inclu­ding equip­ping vehic­les with special measu­re­ment tech­no­lo­gies, can be carri­ed out inde­pendent­ly and using the enti­re infra­struc­tu­re (such as chas­sis dyna­mo­me­ter test benches or measu­re­ment and diagno­stic labo­ra­to­ries) at APL.
In addi­ti­on to tech­ni­cal exper­ti­se, APL has resour­ces for test­ing and deve­lo­ping elec­tri­fied drive systems and their compon­ents. Plea­se cont­act us if you requi­re further information.

Further Infor­ma­tio­nen

Artic­le: Requi­re­ments for Opera­ting Mate­ri­als Appli­ed in Hybrid Powertrains

März 2020

Rela­ted Topics:

Test­ing of Elec­tri­fied Drives

Deve­lo­p­ment of fuel cell drive

Chemi­cal and Physi­cal Laboratory

// Loca­ti­ons 

Head­quar­ters Land­au
APL Auto­mo­bil-Prüf­tech­nik
Land­au GmbH
Am Hölzel 11
76829 Land­au


// Wolfs­burg
APL Auto­mo­bil-Prüf­tech­nik
Land­au GmbH
Gustav-Hertz-Stra­ße 10
38448 Wolfs­burg


// Bietig­heim-Bissin­gen
APL Auto­mo­bil-Prüf­tech­nik
Land­au GmbH
Robert-Bosch-Stra­ße 12
74321 Bietig­heim-Bissin­gen

// APL Group

APL Auto­mo­bil-Prüf­tech­nik Land­au GmbH

AIP GmbH & Co. KG

IAVF Antriebs­tech­nik GmbH

IAVF-Volke Prüf­zen­trum für Verbren­nungs­mo­to­ren GmbH


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