Strengthening Product Reliability Through Rigorous Validation and Industry–University Collaboration

EVLINK has successfully completed comprehensive water circulation and power-on performance testing for its Q Series PTC Coolant Heaters at the laboratory facilities of Shanghai University of Engineering Science (SUES). The testing program was conducted under simulated real-world operating conditions to evaluate the product's heating performance, operational stability, safety protection functions, and overall system compatibility.

The successful completion of this validation marks another important milestone in ensuring the reliability and performance of EVLINK's thermal management solutions for new energy vehicles.

As one of EVLINK's long-term academic partners, Shanghai University of Engineering Science provides advanced laboratory resources and strong research capabilities in automotive engineering and thermal management technologies. By combining the university's scientific research expertise with EVLINK's engineering and manufacturing experience, both parties continue to promote technological innovation and accelerate the commercialization of advanced thermal management solutions.

1.Comprehensive Testing Under Real Operating Conditions

As electric commercial vehicles continue to demand higher efficiency, reliability, and safety, thermal management systems require coolant heaters capable of delivering rapid heating performance while maintaining stable operation under various working conditions.

To ensure the Q Series meets these requirements, the testing program focused on evaluating:

· Overall operating performance during water circulation and power-on conditions

· Heating efficiency and coolant temperature rise

· Long-duration operational stability

· Output power consistency and temperature control accuracy

· Controller communication and system response

· Performance of integrated safety protection functions, including over-temperature, over-current, over-voltage, and under-voltage protection

These tests provide comprehensive verification of the product's performance across multiple operating scenarios.

2.Advanced Laboratory Platform Supporting Reliable Validation

The testing was carried out using the professional thermal management testing platform at Shanghai University of Engineering Science, equipped with advanced experimental facilities, including:

· High-voltage DC power supply

· Coolant circulation system

· Constant-temperature water tank

· Cooling circulation equipment

· Flow control system

· Temperature monitoring system

· Voltage, current, and power measurement instruments

· Real-time data acquisition and analysis system

Throughout the testing process, critical operating parameters—including inlet and outlet coolant temperature, flow rate, voltage, current, power consumption, housing temperature, and controller signals—were continuously monitored and recorded to ensure accurate and reliable performance evaluation.

The combination of advanced laboratory facilities and EVLINK's engineering expertise enables testing that closely replicates actual vehicle operating conditions, providing reliable data for product validation and continuous improvement.

3.Rigorous Testing Process Simulating Real Vehicle Applications

Before testing began, engineers completed coolant filling, system venting, and leak inspection to establish a stable coolant circulation loop.

Once the high-voltage power supply was activated, the Q Series PTC Coolant Heater entered normal operation. During the entire testing procedure, the engineering team continuously monitored and recorded key performance data, including:

· Start-up response time

· Coolant temperature rise

· Output power stability

· Coolant circulation performance

· Controller communication status

· Noise and vibration performance

· Response of integrated protection functions

4.Outstanding Test Results

The Q Series PTC Coolant Heater demonstrated excellent overall performance during continuous water circulation and power-on testing.

Key validation results include:

· Rapid heating response with fast coolant temperature increase

· Stable power output throughout continuous operation

· Accurate and consistent temperature control

· Reliable sealing performance with no coolant leakage

· Stable controller communication and fast system response

· Successful activation of integrated safety protection functions

· Excellent operational stability during long-duration testing

The test results confirm that the Q Series offers outstanding reliability, safety, and heating performance, making it well suited for thermal management applications in electric buses, electric trucks, construction machinery, specialty vehicles, and energy storage systems.

5.Driving Innovation Through Continuous Validation

Reliable products are built upon rigorous testing and continuous engineering improvement.

Leveraging its ongoing collaboration with Shanghai University of Engineering Science, EVLINK will continue expanding its product validation 

capabilities through comprehensive testing programs, including:

· Environmental reliability testing

· Durability and lifetime testing

· High- and low-temperature performance testing

· Vibration testing

· Protection rating (IP) verification

· Complete vehicle thermal management simulation

These validation activities ensure that every EVLINK product meets the demanding performance and reliability requirements of modern electric vehicle applications.

Every test represents another step toward higher product quality. Every data point strengthens our commitment to innovation and customer satisfaction.

Moving forward, EVLINK will continue investing in research, product development, and collaborative innovation with leading academic institutions. By combining advanced engineering expertise with rigorous product validation, we remain committed to delivering safe, efficient, and reliable thermal management solutions that support the global transition toward sustainable mobility.