Fully exploiting Development potential for E-Mobility
The range of electric vehicles depends on various factors, such as battery capacity or air conditioning. But the right refrigerant can also increase efficiency. Together with our partners, we are developing new refrigerants for thermal management in all-electric vehicles. Our customised component and system test benches meet every requirement. Whether developing new cooling systems for hybrid drives, battery and engine cooling - we develop, test and validate with all types of refrigerants, including R744 (CO2) and R290 (propane).
Our Service Portfolio
- Test benches for the refrigerants R744, R134a/R1234yf, optionally R290 (propane)
- Applications for electric refrigerant compressors (eKMV), mechanical refrigerant compressors (mKMV)
- System measurements (performance and efficiency studies for air conditioning and heat pump scopes)
- Compressor and component tests (durability, performance and acoustics tests)
- Leakage measurements (for complete systems, compressors and hose lines)
- Compressor and component testing (durability, performance and acoustics)
Optimal Validation of Automotive Refrigerant Compressors with our Test Benches
- Matrix text method
- Service life investigations (Raffer tests)
- Determination of oil circulation (OCR)
- Measurements of gas pulsation and body vibration
- Acoustic measurements (NVH)
- Temperature loads from -40 ... 150 °C in the test chamber
Developing and Safeguarding Circuits with alternative Refrigerants
For years, the automotive industry has been faced with the task of finding a replacement for the refrigerant R134a, which is no longer permitted in the EU. For this purpose, refrigerant circuits with alternative refrigerants must be developed and secured. In order to master these challenges, we accompany and support our customers at all times in a committed and professional manner. With our expertise in measuring, analysing and evaluating the latest HVAC technologies, we contribute to the development process and ensure that our climate will soon be even more protected with the next generation refrigerant.
Find the right solution!
With the IPEcomp validation test bench for automotive refrigerant compressors, both electric and mechanical refrigerant compressors can be tested for performance and endurance. By mounting the compressor on a mechanically decoupled seismic mass, NVH tests are possible as well.
On the IPEcomp validation test bench for automotive refrigerant compressors, both electrically (eKMV) and mechanically (mKMV) driven DUTs can be subjected to performance and endurance tests. By mounting the test item on a mechanically decoupled, seismic mass, NVH tests on the test item are also possible.
Our IPEload load units are compact systems for the thermodynamic load testing of automotive refrigerant compressors. The IPEload can be used to test both electric and mechanical compressors under various thermodynamic load conditions. Our load units are characterized by their low power consumption, since no evaporator power has to be applied to the refrigerant circuit.
For technical, regulatory, or logistical reasons, it is not always possible to integrate the actual vehicle components in the coolant circuit on the test bench for validation. This often concerns electrical components such as batteries or power electronics. The IPEsim coolant circuit simulation module has been developed for cases like these to simulate individual components in the coolant circuit of a modern hybrid or electric vehicle and thus replace them in the test bench application. After the connection to a recooling circuit, the IPEsim can simulate both heat sinks and heat sources. It automatically controls the process variables such as cooling and heating capacity, flow temperature, volume flow, system pressure, and pressure drop flow. The system is conveniently operated via a master computer, e.g. with our IPEmotion software, or via the integrated PLC touch panel. Depending on the application, different test circuit volumes are possible and recooling can be active (with integrated refrigeration system) or passive. For passive recooling, the minimum test item temperature depends on the flow temperature of the recooling medium.
The IPEvalve component test bench has been developed for high-standard automated performance or endurance tests for various automotive refrigerant circuit valve types. The version for functional tests includes a device for measuring and controlling the oil circulation rate (OCR) at various points in the circuit (unlike the version for endurance tests). In addition to the superheat of the refrigerant in the suction line, the low pressure and the high pressure can also be controlled. The control of the valves is customized, e.g. via LIN bus or a PWM signal, and operated via the integrated PLC, in which all control parameters and software limit values are stored. The integrated safety system automatically switches off the test bench if the set limit values are exceeded or if a refrigerant leakage is detected. The test bench is operated via a central computer on which the IPEmotion test bench software with the corresponding test bench configuration is pre-installed. By connecting the test bench to a coolant system, it is recooled. Since the test bench performs pressure holding tests independently, the connection to a nitrogen cylinder is necessary. The integrated vacuum pump as well as the refrigerant extraction station facilitate the test bench setup.
The IPEflush high-performance flushing device has been developed to ensure the reliable measurement of the oil circulation ratio. IPEflush cleans the test circuits or individual components from any residual oil. The device uses a multi-stage flushing process to separate out – virtually residue-free – all the oil, dirt particles, and other contaminants retained throughout the various refrigeration circuits. A liquid refrigerant - R134a - is used as flushing medium since it binds most of the oils used in the automotive sector.
Endurance Test Bench IPEload
Component development in "mini format"! The little brother to the IPEcomp is the IPEload auto. As already mentioned with the IPEcomp, this product can be used to determine the properties of the test specimen. Here the focus is more on durability and lifecycle performance. This is realized by means of Raffertests specified in the customer's specifications, or the determination of the test matrix is worked out individually with the expertise of IPEengineering. Due to the small installation space and the resulting low space requirement, this load box can be used for other development-relevant topics around the refrigerant compressor. In conjunction with a separate climatic test cabinet, the test specimen can be subjected to various temperatures, both in the positive and negative Celsius range.
Function Test Bench Refrigerant Compressor
In the modern development of vehicle air conditioning and in connection with thermal management, the technical design or the validation of the function of the refrigerant compressor is the focus of the holistic development process. Especially due to the changing requirements in the automotive sector, it is indispensable to reproduce a flawless function of the test item to be tested by means of reliable test bench equipment. Be it in the classic AC mode or in the now increasingly important heat pump mode. The interaction of sustainable hardware in the test bench and the coordinated control in the form of the in-house software IPEmotion make this test bench a unique product in the service sector of the automotive industry.
Prototype Store and Special Refrigerant Pipe Production
In the context of application and measurement tasks, it is sometimes necessary to design and manufacture special hardware solutions. In addition to experienced employees, a comprehensive range of machinery is available for this purpose.
Development-accompanying investigations of electric refrigerant compressors
In the early development phase of the electric refrigerant compressor, a variety of assurances for durability, efficiency and performance are necessary even before the actual design and process validation tests. For this purpose, there are test cases that require flexibility in their requirements and mapping while maintaining high quality standards. Here, IPEengineering's experience in handling such complex setups is unique in the service field. Through a strong team of engineers and technicians who have built up years of experience in the evolution of refrigerant compressors, the development accompanying tests from the start of development to the finished product provide a complete package in the service sector of the automotive industry.