Modular transmission - ALTEN Belgium

Modular transmission

Development of a modular transmission - embedded

For this project, ALTEN partnered with a designer and producer of transmission and a major global vehicle manufacturer. Our team of ALTEN consultants was involved in an R&D project for the development of a modular transmission allowing the hybridisation of a vehicle. The e-motor and associated inverter are directly embedded in the transmission and can be either 15 kW for MHEV, or 92 kW for PHEV, thus the mandatory modularity. The innovation lies in the high degree of mechatronics function integration in those transmissions.     ALTEN ACTIVITIES 

  • Requirement management, keeping up-to-date requirements with coordination activities with the supplier and the customer 
  • Prepare overall tests: writing of test specifications and test criteria for sub-system validation and characterisation  
  • Perform verification activities and review test data files: analysis of data using CANapee and Matlab  
  • Design rationale; follow and justification of any control and embedded software design modification and analysis of impact on the system and project  
  • Supplier and customer interface for mechatronics sub-system problematics, and embedded system problematics  
  • Homologation test definition and follow up  
  • Issue management and data analysis on efficiency, thermal, performance and control, and software issues  
  • End Of Line overview on e-motor acceptance test sequence  


  • AGILE organization  
  • Model-based Design  
  • CAN communication between system  
  • HIL test benches  
  • Formal requirements at system and subsystem 


  • MATLAB Simulink

  ALTEN’S ADDED VALUE  Main competencies deployed  E-drive embedded system expert and Overall mechatronic expert.   Main achievement   Stepping up in a concise time to support efficiently the Product Owner on every electrical problematic and becoming the main stakeholder in those subjects.     Added value for the customer  High level of autonomy and easy interaction with every stakeholder. External Electrical engineering expertise in modular transmission in a major mechanics company. High ability to understand stakes at every level, from technological issues to high-level project problematics.