Series Development of transmissions for passenger cars and light duty vehicles



Hendrik Steffens



+49 241 80 48016




The lecture and the exercises take place in the summer semester.



Consultation-hours by appointment. Please contact us.



This lecture deals with the series development process of transmission for passenger cars and light-duty vehicles. Conventional and modern fully electric drives are covered. First, today’s most common transmission types as well as electric drives and e-machines are introduced. Besides the basic functions, special design features as well as the advantages and disadvantages of each concept are explained. This is followed by a detailed look at the development process of transmissions from the concept to series maturity.

By the example of a dual clutch transmission, the conventional calculation and design process is introduced with respect to the use of modern engineering tools and targeting economic large-scale production. Further on, other important topics in a series development such as transmission controls development, calibration and testing are parts of this lecture.

At the end of the lecture the role of transmissions in the context of electrification is considered. The technical realization of several transmissions for hybrid vehicles are presented in advance of the fully electric drives, covering the inverter, e-machine and transmission. Afterwards the particular challenges coming along with the electrification of the powertrain are discussed.

In the first lecture some basics are taught which enable also students without prior knowledge of vehicle longitudinal dynamics to participate in this lecture.



  • Transmission types in conventional powertrain
  • Hybrid Drives and topologies
  • Electric Drives
  • Concept and design
  • Components
  • Development process
  • Testing
  • Series production

Teaching and learning portal

Complementary lecture and exercise documents as well as older exams for exam preparation can be found at RWTHmoodle.

Complementary documents are also available at RWTHonline.



Please keep further notices on the exam in mind.



  Name Contakt
Gereon Hellenbroich
Tel.: +49 241 5689 6719
Professional experience VKA Research Assistant - Design and concept development of gearboxes and hybrid drives 4 years
FEV Project Manager - Gearbox design 2 years
Team Leader & Project Manager - Gearbox design 2 years
Current position FEV Head of Department - Gearbox design and calculation since 6 years
Team size About 20 employees




  Name Contakt
Christopher Marx
Tel.: +49 241 56896719
Work experience ZF Group Transmission Designer 1/2 year
ZF Group Product Manager for High Performance Dual Clutch and Manual Transmissions 6 years
ZF Group Product Manager and Team Leader Electrified Powertrain - Electric Drive Unit (EDU) Design 4 years
Current position FEV Technical Specialist Electric Drive Unit Design (Subject specialist) since 2023