Realizing innovations

Our customers profit from our proven expertise in delivering industry-leading powertrain solutions. The scope of our services supports your organisation in taking advantage of the opportunities provided by novel propulsion technology and by optimised vehicle thermal management systems.

Battery testing

battery design

A key core of our know-how lies in the design and development of application-oriented HV and LV Li-ion battery systems.

Battery testing

Be Flexible

We have developed our own highly efficient and cost-optimised solution for use in a serial hybrid vehicle. In general, we rely on cylindrical 18650 cells. The main advantages of this cell technology are the continuously falling costs, the interchangeability, and manufacturer independence. In addition to battery variants with 18650 cells, concepts with pouch and prismatic cells were also developed through internal and customer projects.

Battery testing
Battery testing
Battery testing

As a thermal management expert, we also develop cooling concepts at the cell, module and battery level and integrate these into the overall vehicle thermal management concept.

Design Highlights

Key Facts

vehicle build-up

vehicle
build-ups

A key strength of ours is the development of demonstration vehicles such as the HyperHybrid concept vehicle Mark I based on a Geely Emgrand EC7 and the Mark II based on a Tesla Model 3.

vehicle build-up

Showcar or demonstrator -
you name it

Drivetrain components were removed from the original vehicles and replaced by the HyperHybrid system components.

Corresponding mounting structures were designed with CAD and tested and secured by FEM.  The optimum coordination between drivability / performance values and system consumption was then determined by means of test drives.

demonstrator build-up
demonstrator build-up
demonstrator build-up

Construction of Concept Vehicles

Key Facts

OBRIST Powertrain services

simulation / testing

In principle, any vehicle with HyperHybrid components can be equipped and simulated to make the advantages / strengths of the developed concept visible.

OBRIST Powertrain services

Technology chosen for you

During the development of the “HyperHybrid” system, a component test stand was constructed. It was used for the initial commissioning of the main system components (ZV Generator HICE, HV battery, and drive system) to ensure the performance and efficiency values for the simulation.


The test stands are indispensable for measuring and optimizing existing and developing new or improved components.

simulation services
simulation services
simulation services

Simulation Target

Presentation of certain hyperhybrid system advantages

Key facts

1. Simulation

2. Testing

Extensive Test Possibilities

Thermal Management services

powertrain thermal management

Our Powertrain and Engineering teams have many years of experience in design and efficiency optimisation of the thermal management of complete vehicle systems.

Thermal Management services

Thermal comfort

More than 50 vehicles have been equipped for the most diverse OEMs and suppliers. We have a comprehensive network of partners which ensures the development and delivery of the required components. The wide range of know-how and acquired years of experience in automotive thermal management enables us to develop and implement holistic concepts for air conditioning of the interior, drive train components (electric motor, inverter) and HV battery as well as Range Extender high temperature circuits.

Thermal Management development
Thermal Management development
Thermal Management development

Thermo-management: Vehicle and Powertrain

Key Facts