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

Realizing innovations

Our customers profit from our proven expertise in delivering industry-leading compressors, components and systems for mobile and stationary applications. The scope of our services supports your organization in taking advantage of the opportunities provided by novel compressor technologies and by improved thermodynamics. 

OBRIST Engineering scroll

technology
selection

From prototype design to mass-production validation, our engineers and technicians offer a proven expertise in the management of development projects.
OBRIST Engineering scroll

Technology chosen
for you

Any application requires the right choice of technology to be used prior to development. Regardless if at system or component level, we at OBRIST can look back on 20 years’ experience in that field and can carry out concept and matrix evaluations to find the right technology for any customer’s application.

OBRIST Engineering scroll 2
OBRIST Engineering scroll 2
OBRIST Engineering scroll 2

We know what our customers need. From a blank slate to a functioning
A-Sample in the least amount of time, along with in-house capabilities in terms of research, simulations, hardware adjustments and testing.

OBRIST Engineering simulation

simulation

Model-based simulation work helps to focus testing on the critical control and durability issues that require real-world testing.

OBRIST Engineering simulation

Knowing before doing

Once the right technology is chosen, profound simulation on system and component level is required to verify assumptions. We use state of the art CFD and FEA analysis tools combined with basic engineering experiences to find early and solution-orientated system and component design and size. Full in-house 3D and 2D design with all actual 3D systems is carried out at by a team with many years of experience. Short time loops with simulation results allow very fast 3D and 2D realisations.

OBRIST Engineering simulation
OBRIST Engineering simulation
OBRIST Engineering simulation

Using a well-established basic dimensioning process minimizes failure rates and meets customers’ requirements. Our team of leading experts in thermal and fluid modelling supports the development process to get an early, deep understanding of the fluid and thermodynamics.

OBRIST Engineering prototype testing

Prototypes / Testing

A key milestone for a successful project. With a big network of specialized suppliers together with an in-house workshop and self-developed test stands, OBRIST’s development speed is unmatched.

OBRIST Engineering prototype testing

Key people, key know-how

A well organised local network of prototype parts suppliers combined with in-house prototype building and testing allow very fast development times. If needed, we adapt or build test rigs for customer applications within the development project.

OBRIST Engineering compressor testing
OBRIST Engineering compressor testing
OBRIST Engineering compressor testing

Full service development with fast and promising results that will astound.

OBRIST Engineering development

Development

We support your engineering teams with our development services and our experience in multi-project management and are accustomed to working in international teams with our customers.

OBRIST Engineering development

From idea to mass production

We can offer the full services needed for development from A-D sample. Depending on customer needs and requests, a handover of project can happen at any stage in the development. We typically support the handover and customer installation processes with consultancy.

OBRIST Engineering development
OBRIST Engineering development
OBRIST Engineering development

Designing with state of the art product development processes. Field of competence reaches from concept studies to start of production level.

OBRIST Engineering vehicle build-up

Vehicle
Build-Up

Over the past 20 years, OBRIST built-up several vehicles with new HVAC-systems for extensive testing. Special highlights of those are the R744 systems made for a variety of renowned OEM ‘s.

OBRIST Engineering vehicle build-up

Show-car or demonstrator
you choose

AC and HP systems especially require testing and development within the target application. We can offer and carry out installation of these system in vehicles including measurement equipment, wind tunnel testing and evaluation of results.

OBRIST Engineering vehicle build-up
OBRIST Engineering vehicle build-up
OBRIST Engineering vehicle build-up

Profound competencies through the build-up of more than 50 test vehicles equipped with R744 systems.