On May 15, 2024, during the 4th International Summit Forum on Vehicle Power Systems, Leishen Power obtained the industry's first "Grade S Certification for Hybrid System Reliability of New Energy Vehicles" issued by the China Automotive Center.
Tao Jinlong (first from right), general manager of Huacheng Certification (Tianjin) Co., Ltd., issued a certificate to Zhao Fucheng (first from left), executive vice president of Geely Power Research Institute.
800 hours of verification, witnessing S-class reliability
High-standard testing of hybrid systems can screen and prevent potential problems in the vehicle's powertrain and ensure the safety of users. The test lasted 800 hours, and the cumulative damage of the Raytheon hybrid system was 505,100 kilometers equivalent to WLTC. Such a high-intensity and uninterrupted test is equivalent to a marathon runner running three full marathons in a row, which fully tests the reliability and durability of the Raytheon power hybrid system.
(Comparison of reliability certification test conditions with WLTC.) In the overall working condition comparison, the Thor hybrid system has a more efficient power output)
At the same time, the working condition dimension of this test is also richer, covering the main characteristics of the user's actual use, including general characteristics such as urban, suburban, mountain roads, high-speed and other road conditions, and other characteristics such as slope climbing, full throttle acceleration, unrestricted road conditions, etc. It is under such complex and rigorous tests that Leishen hybrid system has won the industry's first "New Energy Vehicle Hybrid System Reliability Certification S Level" certificate.
Comparison of reliability certification test conditions with WLTC. In the comparison of low-speed and high-speed working conditions, the Thor hybrid system has more efficient power output and kinetic energy recovery
Hardcore analysis, where does the S-level strength come from
The engine, transmission and drive motor are the core of the hybrid system, which are closely related to the dynamic performance, driving experience and reliability of the whole vehicle.
In terms of engine, the new generation of Raytheon electric hybrid engine - BHE15 Plus has the two advantages of electrification and intelligence, and applies high-end electrification hardware and 8 intelligent control technologies X· System support, with a higher thermal efficiency of 44.26% in a production engine. In this test, the BHE15 Plus was able to operate for a long time under characteristic conditions such as start-up, series operation, ICE drive operation, parallel operation, idle power generation, and shutdown with ultra-precise control, verifying its reliability in terms of high-cycle fatigue (e.g., bearings) and wear (e.g., cylinders).
（BHE15 Plus）
The DHT Evo intelligent hybrid transmission is another highlight of this test. It has four technical characteristics: super inductance, high efficiency, strong power, and more comfortable, and the comprehensive efficiency of WLTC working conditions is 89.4%. Through the structural design of 3 gears of the engine and 1 gear of the motor, it can meet the intelligent switching of the whole field parallel working mode to realize the different power needs of users, and it is an intelligent hybrid transmission with high efficiency and strong electricity. In this test, DHT Evo verified the anti-wear and anti-impact reliability of its shafts, teeth, bearings, clutches, brakes, housings and other components through series-parallel switching, gear switching, and torque transmission.
(DHT Evo)
In terms of drive motor, this test verified the reliability of the Thor power drive motor system in resisting torque impact, speed impact and torque output through the comprehensive data of starting, driving, feedback and R gear operation.
(Comparison of reliability certification test conditions with WLTC.) In the comparison of reverse gears, the Thor hybrid system can store energy for the whole vehicle)
Continue to innovate and strive to be the 001 in the hybrid era
As the power core of the car, the long-term stability and safety of the power system is the prerequisite for users to obtain a high-quality driving experience. In this test, there was no attenuation in all aspects of the performance of the hybrid system of Leishen Power, and it was always in the best condition, which fully proved the excellent technical strength and reliability of Leishen Power.
The acquisition of the "New Energy Vehicle Hybrid System Reliability Certification S Class" certificate demonstrates Leishen Power's leading position in the field of hybrid technology, and also reflects Leishen Power's long-term pursuit in the technical direction. In the future, Leishen Power will continue to challenge itself, improve user experience, and continue to create high-quality, low-cost, high-reliability hybrid systems to promote the sustainable development of the automotive industry.