How to control every degree of temperature difference and win the future battlefield of the power system?

Abstract:

In an era where the century old automotive industry is undergoing profound changes in electrification and intelligence, the power system, as the core determining the performance, safety, and competitiveness of the entire vehicle, is facing unprecedented testing and verification challenges. The complex and ever-changing climate environment, increasingly stringent regulatory requirements, and consumers' extreme expectations for reliability all point to a core proposition: how to ensure that the "car heart" from internal combustion engines to three electric systems can jump stably, efficiently, and durably in any environment?

The core of the answer lies in the control of the 'environment'. The environmental testing equipment with precision temperature and humidity control as its core has transformed from a traditional auxiliary verification tool to a key strategic facility for driving forward research and development of power systems and defining future performance standards. It not only builds the scientific foundation of product reliability, but also becomes the core bridge connecting laboratory data with complex real-world operating conditions.

1、 Refactoring Test Benchmarks: A Revolution from "Environment Adaptation" to "Environment Definition"

Traditional testing often verifies the "adaptability" of products to the environment after the fact, while modern R&D paradigms require a forward-looking "definition" of product performance in all climate environments in design. The environmental testing equipment has achieved this paradigm shift by creating a continuously precise and controllable environment from -40 ° C to+150 ° C, with humidity ranging from 5% to 98% RH.

Its core advantages lie in:

• Data purityStripping away the interference of uncertain environmental variables, the test results comprehensively reflect the characteristics of the product itself, providing precise guidance for performance optimization.

• Boundary detectabilitySafely and quickly explore the performance boundaries and failure modes of power systems under harsh temperature and humidity conditions, providing quantitative basis for safety redundancy design.

• Time compression capabilityThrough high acceleration stress testing, simulate the environmental aging effects of several years within a few months, greatly shorten the research and development cycle, and seize the market opportunity.

2、 Deep empowerment of key testing scenarios: precise, efficient, and comprehensive

1. The Revolution of "Body Temperature" Management in Electric Power Systems
   The performance and lifespan of batteries, motors, and electronic control systems are extremely sensitive to temperature. Environmental testing equipment is the "ruler" for the development of thermal management systems:

   • batteryAccurately evaluate the charging and discharging performance, capacity decay, internal resistance changes, and thermal runaway triggering boundaries at different temperatures, providing core data for BMS algorithms and liquid cooling system design.

   • Motor and Electronic ControlVerify its insulation performance, output stability, and cooling efficiency under continuous high load and alternating high temperature and high humidity.

   • Global thermal managementIn the simulationharshIn the environmental cabin, verify whether the vehicle level thermal management strategy can coordinate the cooling requirements of the battery, cabin, and electric drive to achieve energy efficiencyExcellent.

2. Extreme environment quenching of internal combustion power system
   Even under the trend of electrification, the reliability of internal combustion engine systems (including hybrid dedicated engines) remains the cornerstone in harsh environments.

   • Cold start and hot managementVerify oil fluidity, starter torque, and combustion stability at extremely low temperatures; Assess the efficiency and anti knock capability of the heat dissipation system at higher temperatures.

   • Emission consistencyEnsure that emission control after treatment systems (such as GPF and SCR) can work efficiently from low plateau temperatures to tropical high temperatures, meeting the world's most stringent regulations.

   • Materials and SealingVerify the aging and sealing performance of rubber seals, plastic pipelines, and lubricating oil under long-term temperature and humidity cycling.

3. The cornerstone of reliability for transmission and drive systems
   Whether it is a multi speed gearbox or a single speed reducer for electric vehicles, their lubrication, shifting quality, NVH, and durability are directly affected by the oil temperature. Environmental testing equipment can accurately test its efficiency map, wear characteristics, and drag loss at low temperatures under set temperature and humidity conditions, providing key inputs for lubrication design and calibration.

4. Prospective Corrosion and Chemical Safety Testing
   The high humidity and high salt environment pose severe challenges to high-voltage connectors, battery pack casings, and metal structural components. A controllable constant temperature and humidity environment, combined with salt spray and other functions, can accelerate the evaluation of the effectiveness of anti-corrosion coatings and sealing processes, as well as the long-term stability of insulation resistance of battery systems in humid environments, preventing potential electrochemical corrosion and safety hazards.

3、 Strategic Value for the Future: Empowering Innovation and Sustainability

1. Escort the landing of next-generation technologyNew technologies such as solid-state batteries, 800V high-voltage platforms, and silicon carbide electric drives have raised higher requirements for the testing environment, such as a wider temperature range and more precise temperature control. Environmental testing equipment is an essential validation guarantee for these cutting-edge technologies from the laboratory to mass production.

2. Drive digital R&D closed-loopThe high fidelity and high consistency data generated by environmental testing is the preferred "fuel" for constructing and training digital twin models of power systems. Virtual simulation and physical testing can be efficiently iterated and calibrated in a controlled environment, accelerating the development process.

3. Support full lifecycle value managementStandardized environmental testing conditions are the universal language for evaluating the state of health (SOH), residual value, and dismantling safety of retired batteries, from the validation of new components to the hierarchical utilization evaluation, providing technical support for the circular economy.

4. Ensure global market accessMeeting the needs of different regions such as China, Europe, and North AmericaharshMandatory testing standards in the environment are the direction for enterprise productsworldThe passport to the market.

Conclusion: Controlling the environment means controlling the future

In the competition of power systems, victory belongs not only to those enterprises with design concepts, but also to those enterprises that can verify and ensure the correctness of their designs through the most rigorous and scientific methods throughout their entire lifecycle and in the global environment. Precise environmental testing equipment is the core of achieving this' certainty '. It makes every test a solid step towards reliability, keeping every temperature difference under control, thus building an insurmountable technological and quality moat in future market competition. This is not only a manifestation of engineering capability, but also a strategic vision of being responsible for the product and committing to user safety.