Ruidong New Energy advances EVTR450P hybrid transmission project with top automakers.
[Introduction] Recently, the longitudinal power splitting hybrid transmission EVTR450P project jointly developed by Nantong Ruidong New Energy Technology Co., Ltd. (hereinafter referred to as "Ruidong New Energy") and a leading automotive manufacturer in the industry successfully passed the design confirmation and trial production node reviews. This marks that the project has officially entered the pre-production stage. This is another significant milestone achieved by Ruidong New Energy in the field of commercial vehicle power systems, fully demonstrating the company's full-stack technical capabilities in the system architecture design of hybrid transmission systems, the development of key components, and industrialization.
I. Project Background: Seizing the Opportunity of New Energy Transformation in Commercial Vehicles
With the deepening implementation of the "Carbon Neutrality" strategy, the transition to new energy in the commercial vehicle sector is accelerating. Light trucks, as the main force in urban logistics, are facing the dual challenges of meeting increasingly strict emission standards while also considering practical usage requirements such as heavy loads and long range. Hybrid technology, with its zero-emission driving capability, no range anxiety, and low fuel consumption, has become one of the optimal technical routes for the new energy transformation of light trucks.
Ruidong New Energy has accurately seized market opportunities. Leveraging its long-term technical accumulation in the commercial vehicle power system field, it has reached strategic cooperation with leading automotive manufacturers in the industry and jointly developed the transverse power-split hybrid transmission EVTR450P for the light truck market.
II. Technical Highlights: Vertical Dual-Passenger Power Split Architecture
2.1 Full-speed Domain Power Coverage
The power split architecture enables the engine to have the capability to intervene and drive at 0 vehicle speed, achieving full-speed domain power coverage. In low-speed heavy-load scenarios, the system can output the maximum system output torque of 2050Nm through the two-speed transmission mechanism and the drive motor working together, fully meeting the requirements for heavy-duty trucks to start and climb slopes.
2.2 High Efficiency and Energy Saving
The system achieves an efficiency of over 91%. Combined with the optimization of the entire vehicle control strategy, the light truck model equipped with this system has a measured fuel consumption of only 8.01L/100km under the CHTC-LT condition, which is better than the set target of 8.2L/100km in the project, demonstrating excellent fuel economy.
2.3 Fuel Consumption Comparative Advantage
In the commercial vehicle sector, fuel efficiency is one of the key indicators that users pay attention to. The power splitting technology adopted by EVTR450P optimizes the engine operating point and energy recovery, enabling it to maintain excellent fuel efficiency across all operating conditions.
The table below presents the comparison of fuel consumption under different technical routes for 4.5-ton light trucks:
I. Project Background: Seizing the Opportunity of New Energy Transformation in Commercial Vehicles
With the deepening implementation of the "Carbon Neutrality" strategy, the transition to new energy in the commercial vehicle sector is accelerating. Light trucks, as the main force in urban logistics, are facing the dual challenges of meeting increasingly strict emission standards while also considering practical usage requirements such as heavy loads and long range. Hybrid technology, with its zero-emission driving capability, no range anxiety, and low fuel consumption, has become one of the optimal technical routes for the new energy transformation of light trucks.
Ruidong New Energy has accurately seized market opportunities. Leveraging its long-term technical accumulation in the commercial vehicle power system field, it has reached strategic cooperation with leading automotive manufacturers in the industry and jointly developed the transverse power-split hybrid transmission EVTR450P for the light truck market.
II. Technical Highlights: Vertical Dual-Passenger Power Split Architecture
2.1 Full-speed Domain Power Coverage
The power split architecture enables the engine to have the capability to intervene and drive at 0 vehicle speed, achieving full-speed domain power coverage. In low-speed heavy-load scenarios, the system can output the maximum system output torque of 2050Nm through the two-speed transmission mechanism and the drive motor working together, fully meeting the requirements for heavy-duty trucks to start and climb slopes.
2.2 High Efficiency and Energy Saving
The system achieves an efficiency of over 91%. Combined with the optimization of the entire vehicle control strategy, the light truck model equipped with this system has a measured fuel consumption of only 8.01L/100km under the CHTC-LT condition, which is better than the set target of 8.2L/100km in the project, demonstrating excellent fuel economy.
2.3 Fuel Consumption Comparative Advantage
In the commercial vehicle sector, fuel efficiency is one of the key indicators that users pay attention to. The power splitting technology adopted by EVTR450P optimizes the engine operating point and energy recovery, enabling it to maintain excellent fuel efficiency across all operating conditions.
The table below presents the comparison of fuel consumption under different technical routes for 4.5-ton light trucks:
Technology Type | Fuel consumption under operating conditions (L/100km) | prime cost |
Traditional diesel fuel | 12 | low |
Range Extension | 10+ | Middle |
P13 | 9.5 | High |
Ruidong EVT (Power Shunting) | 7.8 | Middle |
From the comparative data, it can be seen that the Ruidong EVT power splitting solution has a significant advantage in fuel consumption performance. At the same time, the system cost is at a medium level, achieving the best balance between fuel consumption and cost, and possessing excellent overall cost performance.
2.4 Platform-based Design
The EVTR450P adopts a platform-based design concept. By flexibly matching the speed ratio on the motor side, it can cover and apply various vehicle models such as pickup trucks, vans, and light trucks, and has excellent scalability and adaptability.
III. Development Process: Rigorous Verification to Ensure Quality
Since the project began, Ruidong New Energy has established a professional project team and has built a complete development and verification system covering simulation design, sample trial production, test bench verification, and vehicle calibration, ensuring that the entire process from design to mass production of the product is under controllable quality management.
3.1 Simulation Design Phase
Ruidong New Energy has established a simulation capability covering multiple physical fields such as fluid dynamics, thermodynamics, and structural mechanics based on an advanced simulation analysis platform. Through system-level simulation optimization, it has achieved precise prediction and optimization of key performance indicators such as economic and dynamic performance, structural strength, cooling and lubrication systems, and NVH characteristics, providing scientific theoretical support for product design and significantly shortening the development cycle while reducing the cost of trial and error.
3.2 Sample Manufacturing and Verification
Ruidong New Energy possesses the capability for independent trial production of key components and has established a complete trial production process ranging from raw material selection, process development to product inspection. Through multiple iterations of sample optimization, the functions and performance of core components such as the planetary gear mechanism, VCU, and PCU motor controller were verified and calibrated, laying a solid technical foundation for subsequent mass production.
3.3 Vehicle Validation
The project carried out comprehensive validation work covering extreme environments and complex road conditions. From extremely cold environments of -35 degrees Celsius to extremely hot environments of 45 degrees Celsius, from plains to mountainous areas at an altitude of 4800 meters, from urban roads to complex road conditions in mountainous areas, the system underwent rigorous environmental adaptability verification. Through multiple rounds of winter standards, summer standards, and mountain road calibration validations, it fully demonstrated the reliability and stability of the product in various usage scenarios.
3.4 Key Performance Indicators Achievement
After a systematic development and verification process, all key performance indicators of the EVTR450P project have reached or exceeded the design targets. The vehicle's power performance and fuel economy are excellent, and the performance of core components is stable and reliable, providing a strong guarantee for the project to smoothly enter the mass production stage.
IV. Industrialization Layout: Building Intelligent Manufacturing Capabilities
To meet the mass production requirements of the project, Ruidong New Energy has established electric drive and electric control production bases in Nantong and Huai'an, possessing a complete manufacturing capability ranging from component processing to assembly of complete units.
4.1 Production Line Construction
The base is equipped with a 100,000-level clean workshop. It has a PCU controller production line and a planetary gear mechanism production line. The production lines adopt a modular design, allowing for flexible expansion of production capacity according to market demands. Additionally, a MES traceability system is provided to achieve full-process quality control from raw materials to finished products, ensuring product consistency and traceability.
4.2 Production Capacity
The pilot production line has been completed and is currently in trial operation, capable of producing in small batches. At the same time, the planning for the automated production line has been finalized. It will be constructed in phases based on the project progress, ultimately achieving a large-scale production capacity that meets market demands.
4.3 Quality Assurance
The base has established a comprehensive quality management system, equipped with various quality control measures throughout the process, including incoming material inspection, process testing, and finished product testing. Automated detection equipment is used for key processes to ensure stable and reliable product quality.
V. Looking Forward to the Future
As the EVTR450P project officially enters the stage of production preparation, Ruidong New Energy will continue to uphold the concept of "Focusing on Power, Driving the Future", using its professional technical strength to provide customers with high-quality commercial vehicle power system solutions, and helping the Chinese commercial vehicle industry achieve a green and low-carbon transformation.
About Ruidong New Energy
Nantong Ruidong New Energy Technology Co., Ltd. focuses on the research and development as well as manufacturing of power systems for new energy vehicles. Its business covers the design of hybrid transmission system architectures, the development of key components, the development of control system software, and industrialization services. The company has a complete research and verification system and intelligent manufacturing capabilities, and is committed to becoming a leading supplier in the field of commercial vehicle power systems.
2.4 Platform-based Design
The EVTR450P adopts a platform-based design concept. By flexibly matching the speed ratio on the motor side, it can cover and apply various vehicle models such as pickup trucks, vans, and light trucks, and has excellent scalability and adaptability.
III. Development Process: Rigorous Verification to Ensure Quality
Since the project began, Ruidong New Energy has established a professional project team and has built a complete development and verification system covering simulation design, sample trial production, test bench verification, and vehicle calibration, ensuring that the entire process from design to mass production of the product is under controllable quality management.
3.1 Simulation Design Phase
Ruidong New Energy has established a simulation capability covering multiple physical fields such as fluid dynamics, thermodynamics, and structural mechanics based on an advanced simulation analysis platform. Through system-level simulation optimization, it has achieved precise prediction and optimization of key performance indicators such as economic and dynamic performance, structural strength, cooling and lubrication systems, and NVH characteristics, providing scientific theoretical support for product design and significantly shortening the development cycle while reducing the cost of trial and error.
3.2 Sample Manufacturing and Verification
Ruidong New Energy possesses the capability for independent trial production of key components and has established a complete trial production process ranging from raw material selection, process development to product inspection. Through multiple iterations of sample optimization, the functions and performance of core components such as the planetary gear mechanism, VCU, and PCU motor controller were verified and calibrated, laying a solid technical foundation for subsequent mass production.
3.3 Vehicle Validation
The project carried out comprehensive validation work covering extreme environments and complex road conditions. From extremely cold environments of -35 degrees Celsius to extremely hot environments of 45 degrees Celsius, from plains to mountainous areas at an altitude of 4800 meters, from urban roads to complex road conditions in mountainous areas, the system underwent rigorous environmental adaptability verification. Through multiple rounds of winter standards, summer standards, and mountain road calibration validations, it fully demonstrated the reliability and stability of the product in various usage scenarios.
3.4 Key Performance Indicators Achievement
After a systematic development and verification process, all key performance indicators of the EVTR450P project have reached or exceeded the design targets. The vehicle's power performance and fuel economy are excellent, and the performance of core components is stable and reliable, providing a strong guarantee for the project to smoothly enter the mass production stage.
IV. Industrialization Layout: Building Intelligent Manufacturing Capabilities
To meet the mass production requirements of the project, Ruidong New Energy has established electric drive and electric control production bases in Nantong and Huai'an, possessing a complete manufacturing capability ranging from component processing to assembly of complete units.
4.1 Production Line Construction
The base is equipped with a 100,000-level clean workshop. It has a PCU controller production line and a planetary gear mechanism production line. The production lines adopt a modular design, allowing for flexible expansion of production capacity according to market demands. Additionally, a MES traceability system is provided to achieve full-process quality control from raw materials to finished products, ensuring product consistency and traceability.
4.2 Production Capacity
The pilot production line has been completed and is currently in trial operation, capable of producing in small batches. At the same time, the planning for the automated production line has been finalized. It will be constructed in phases based on the project progress, ultimately achieving a large-scale production capacity that meets market demands.
4.3 Quality Assurance
The base has established a comprehensive quality management system, equipped with various quality control measures throughout the process, including incoming material inspection, process testing, and finished product testing. Automated detection equipment is used for key processes to ensure stable and reliable product quality.
V. Looking Forward to the Future
As the EVTR450P project officially enters the stage of production preparation, Ruidong New Energy will continue to uphold the concept of "Focusing on Power, Driving the Future", using its professional technical strength to provide customers with high-quality commercial vehicle power system solutions, and helping the Chinese commercial vehicle industry achieve a green and low-carbon transformation.
About Ruidong New Energy
Nantong Ruidong New Energy Technology Co., Ltd. focuses on the research and development as well as manufacturing of power systems for new energy vehicles. Its business covers the design of hybrid transmission system architectures, the development of key components, the development of control system software, and industrialization services. The company has a complete research and verification system and intelligent manufacturing capabilities, and is committed to becoming a leading supplier in the field of commercial vehicle power systems.
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