This inventor holds 4 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Weichai Power Co., Ltd., Haier Smart Home Co., Ltd., Qingdao Haier Drum Washing Machine Co., Ltd.. Active years: 2019-2025.
Company Filing History:
2 out of 55 
1 out of 303 
1 out of 78 
Years Active: 2019-2025
Title: Haifeng Ren: Innovator in Engine Control Technologies
Introduction
Haifeng Ren is a notable inventor based in Shandong, China. He has made significant contributions to the field of engine control technologies, holding a total of 4 patents. His work focuses on improving the efficiency and performance of engines through innovative control methods.
Latest Patents
Ren's latest patents include a cylinder deactivation control method and apparatus for engines. This method determines the cylinder deactivation trigger moment of an engine that is to be controlled. It also establishes a second cycle and a corresponding cylinder deactivation mode based on the crankshaft rotation speed and target torque at the trigger moment. Additionally, it calculates the fuel injection quantity for the ignition cylinder in the next cycle. Another patent involves a similar control method, which determines the cylinder pressure type of each cylinder and adjusts the fuel injection quantity based on a calibrated preset chart.
Career Highlights
Throughout his career, Haifeng Ren has worked with prominent companies such as Weichai Power Co., Ltd. and Qingdao Haier Drum Washing Machine Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in engine technology.
Collaborations
Ren has collaborated with notable colleagues, including Fei Wang and Bin Pang. Their teamwork has contributed to the advancement of engine control technologies and has fostered a creative environment for innovation.
Conclusion
Haifeng Ren's contributions to engine control methods demonstrate his commitment to innovation in the automotive industry. His patents reflect a deep understanding of engine mechanics and a drive to enhance performance and efficiency.