A key strength of OBRIST Powertrain is the development of demonstration vehicles such as the HyperHybrid concept vehicle based on a Geely Emgrand EC7. Drivetrain components (such as internal combustion engines, automatic transmissions, and suspension structures) were removed from the original Geely Emgrand EC7 vehicle and replaced by the HyperHybrid system components. System integration was carried out at CAD and various packaging variants were presented and examined. For the Li-ion battery, the installation location in the luggage compartment was selected directly behind the rear seat. A ZV generator and electric drive with converters were placed in the engine compartment for structural reasons.

Corresponding mounting structures were designed with CAD and tested and secured by FEM. After purchasing the components, support structures, auxiliary units and components of the thermal management system, these were installed in the vehicle, electrified and integrated into the bus system. The hybrid controller was then implemented in hardware and software, and the vehicle was commissioned, tested and tuned in the laboratory. The optimum coordination between drivability / performance values and system consumption was then determined by means of test drives.

Vehicle Build-Up

Vehicle Build-Up

Key Facts

  • Concept and Feasibility Studies
  • Prototyping of Components
  • Component Measurement and Optimization
  • System Measurement and Optimization
  • Vehicle Erection and Conversion (electrification, hybridisation)

Construction of Concept Vehicles

  • Basic Vehicles of All Kinds (pure petrol, diesel, electric and hybrid vehicles (parallel and serial hybrids))
  • Test / Measurement of Selected Drivetrain Components and Auxiliary Units (at OBRIST's own component test stands)
  • Mechanical Integration of Drivetrain Components and Auxiliary Units
    • Adapt Existing and Interpret New Structures
    • Packaging Examinations via CAD
    • Strength Analysis with FEM
  • Electrical Integration of Drivetrain Components and Auxiliary Units
    • Interface Analysis Vehicle Drivetrain Components / Auyiliary Units
    • Hardware and Software Integration
    • Integration of Online Parameter Recording and Analysis Functions
  • Hybrid Control and Operational Strategy Development
  • Vehicle Tests (to optomize consumption and performance)
  • Planning / Support for Surveying on Roller Test Stand (or in the wind tunnel as well as for NVH measurements (with external support))