battery
.expertise

For your project our empirical analysis tools set the base to determine all the requirements for complete battery development projects, where we begin by identifying all target goals to configure specific solutions tailored to your requirements or for holistic battery testing to get your batteries from prototype to market .

Battery Analysis

Technical analysis · Drive cycles · Load spectra · Characteristics evaluation · Optimization proposals · Technical battery design · Operation strategy

Customer-specific battery evaluations are needed to find anchor points for concept improvements in battery development. To guarantee comparability to the state of the art, hofer powertrain has developed different analysis tools and processes, which are capable of visualizing data alongside their potential. A percentage weighting of all technical optimization and its impact on the overall assembly can be used for follow-up development phases. Other simulation- and calculation tools help visualize the results of the technical optimization.

A complete analysis by hofer powertrain includes an assessment of the current technical status, an evaluation of the optimization options based on standardized characteristics of every component (from cell to battery pack)
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• technical analysis
• drive cycles
• load spectra
• characteristics evaluation
• optimization proposals

Our concept validation tool uses external parameters to simulate an optimized battery design and offers further configuration possibilities while simulating real life behaviour within the vehicle, specifically the powertrain. Another benefit of this tool is the preemptive identification of excess energy and opportunities to feed this energy back into the system, thereby increasing overall efficiency.
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• technical battery design
• operation strategy
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A complete analysis by hofer powertrain includes an assessment of the current technical status, an evaluation of the optimization options based on standardized characteristics of every component (from cell to battery pack)
‍

• technical analysis
• drive cycles
• load spectra
• characteristics evaluation
• optimization proposals

Our concept validation tool uses external parameters to simulate an optimized battery design and offers further configuration possibilities while simulating real life behaviour within the vehicle, specifically the powertrain. Another benefit of this tool is the preemptive identification of excess energy and opportunities to feed this energy back into the system, thereby increasing overall efficiency.
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• technical battery design
• operation strategy
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Battery DEVELOPMENT

Concept development · Cell consulting · Technical specifications · Custom 3D model · Thermal simulation · Cooling concept and design · Prototyping · Certified testing and customized tests · data comparison based on benchmarks

As a one-stop-shop hofer powertrain offers the complete development service for efficient battery systems including testing. Efficient energy storage, the ratio between power and energy within PHEVs and BEVs are key competences for many OEMs. It is one of the biggest challenges to create an energy storage system, which meets all given requirements and doesn't constitute the system’s “bottleneck”.

The first step in battery development is the concept, which is based on the sum of all the use cases and customer needs, all within the compunds of the available space

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• battery concept development
• cell consulting
• technical specifications

Aided by the concept we design a 3D model, which is adapted to the available space and also incorporates all physical and chemical behaviour. Once the battery model has been fit into its dedicated area, the simulation can begin.
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• custom 3D model
• fitted to space
• real life material characteristics

The simulation of the battery, from cell, to module, to pack is needed to create a wholistic impression of hotspots or fluid current velocity, but also determine potential errors like thermal runaways in advance
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• thermal simulation
• cooling concept and design

After finalizing the design and finishing all of the necessary simulations, we begin with building a working prototype, factoring in the results from our preceding development steps. As a certified company, we build our prototypes while considering all the required specifications.
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• working prototype

The hofer powertrain Abuse and Environmental Testing Center offers all the processes needed to test prototypes under real-life conditions. By doing so, we can ready a prototype to market - also certified by industry standards such as ECE R100 and ECE R136.
Additionally, hofer powertrain also offers non-standardized tests and customer-specific testing scenarios via simulated and measured data profiles.
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• certified testing
• custom testing
• data comparison based on benchmark analyses

The first step in battery development is the concept, which is based on the sum of all the use cases and customer needs, all within the compunds of the available space

‍

• battery concept development
• cell consulting
• technical specifications

Aided by the concept we design a 3D model, which is adapted to the available space and also incorporates all physical and chemical behaviour. Once the battery model has been fit into its dedicated area, the simulation can begin.
‍

• custom 3D model
• fitted to space
• real life material characteristics

The simulation of the battery, from cell, to module, to pack is needed to create a wholistic impression of hotspots or fluid current velocity, but also determine potential errors like thermal runaways in advance
‍

• thermal simulation
• cooling concept and design

After finalizing the design and finishing all of the necessary simulations, we begin with building a working prototype, factoring in the results from our preceding development steps. As a certified company, we build our prototypes while considering all the required specifications.
‍

• working prototype

The hofer powertrain Abuse and Environmental Testing Center offers all the processes needed to test prototypes under real-life conditions. By doing so, we can ready a prototype to market - also certified by industry standards such as ECE R100 and ECE R136.
Additionally, hofer powertrain also offers non-standardized tests and customer-specific testing scenarios via simulated and measured data profiles.
‍

• certified testing
• custom testing
• data comparison based on benchmark analyses

Battery TESTING

Abuse & Safety · Electrical & Thermal · Environmental · Mechanical

At hofer powertrain we offer a wide array of testing possibilities to our customers. If the testing setup requirements deviate from testing standards, our in-house facilities and test benches support our testing capabilities with target-oriented, customized solutions. We distinguish ourselves with in-depth expertise, a needs-based application of our equipment and a high amount of flexibility.
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Contact us to convince yourself about your possibilities with our battery testing facilities!

Our in-house developed testing environment for the execution of Safety & Misuse tests aids in gaining essential findings for the validation of your battery. We support you with matching protective equipment and long-standing experience in handling hazardous materials. Possible testing scenarios include:
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• Short circuit tests
• Fire resistence evaluation
• Mechanical integrity/stability evaluation
• Thermal shock tests
• Degassing test
• Drop tests

Let us specify your test item’s electrical and thermal characteristics. We’ve got the competence to characterize your cells and develop a simulation model that aims to analyze the cell’s behavior in full packs or modules. Testing and simulation go hand in hand. Both are coordinated with each other so that we can adjust models based on their testing results. This kind of validation cuts development times and lowers your costs.
We can perform electrical tests by LV123 and LV124/LV148 at our facilities and test your control units regarding disturbance variables in HV- and LV-fields.

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Within our test field we are capable of simulating harsh environmental influences on the test item. We cover many possible tests and continuously optimize our processes, to deliver to you the best possible results. We conduct tests going by prevalent testing standards like for example: ISO 16750, LV124-2, VW8000 or CS.0056. This includes long-time tests under the influence of temperature and air humidity, determination of corrosion resistance, IP protection class testing and measuring the influence of chemicals on the test item
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• Over temperature tests
• Water immersion tests
• Dust exposure tests
• Salt-, mist- and fog tests
• Humidity tests
• Thermal shock tests
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We can take over complete testing series for protective undercoatings and vibration-strength. We design the fixtures for the connection of the test items to the test benches of shakers and slides and, upon request, we also carry out strength tests
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• Mechanical shock tests
• Vibration tests
• Gravel bombardment
• Impact tests
• Mechanical strength tests
‍

Our in-house developed testing environment for the execution of Safety & Abuse tests aids in gaining essential findings for the validation of your battery. We support you with matching protective equipment and long-standing experience in handling hazardous materials. Possible testing scenarios include:
‍‍

• Short circuit tests
• Fire resistence evaluation
• Mechanical integrity/stability evaluation
• Thermal shock tests
• Degassing test
• Drop tests

Let us specify your test item’s electrical and thermal characteristics. We’ve got the competence to characterize your cells and develop a simulation model that aims to analyze the cell’s behavior in full packs or modules. Testing and simulation go hand in hand. Both are coordinated with each other so that we can adjust models based on their testing results. This kind of validation cuts development times and lowers your costs.
We can perform electrical tests by LV123 and LV124/LV148 at our facilities and test your control units regarding disturbance variables in HV- and LV-fields.

‍
‍

Within our test field we are capable of simulating harsh environmental influences on the test item. We cover many possible tests and continuously optimize our processes, to deliver to you the best possible results. We conduct tests going by prevalent testing standards like for example: ISO 16750, LV124-2, VW8000 or CS.0056. This includes long-time tests under the influence of temperature and air humidity, determination of corrosion resistance, IP protection class testing and measuring the influence of chemicals on the test item

‍‍

• Over temperature tests
• Water immersion tests
• Dust exposure tests
• Salt-, mist- and fog tests
• Humidity tests
• Thermal shock tests
‍

We can take over complete testing series for protective undercoatings and vibration-strength. We design the fixtures for the connection of the test items to the test benches of shakers and slides and, upon request, we also carry out strength tests
‍‍

• Mechanical shock tests
• Vibration tests
• Gravel bombardment
• Impact tests
• Mechanical strength tests
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