The intake and exhaust control system of Endowa vehicles includes electrical pressure regulating valve PCV, electronic pressure relief valve ECRV, etc. With the implementation of the National VI regulations for commercial vehicles, efficient and precise intelligent control products must be used for intake and exhaust emission control. The Endufa Electric Pressure Regulating Valve (PCV) is a key component developed by the company to meet the national VI emissions of commercial vehicles. While meeting customer requirements, Endufa products optimize the performance of existing components and achieve import substitution, significantly reducing customer costs and achieving the goal of cost reduction and efficiency increase. It can also be used in the Automatic Emergency Braking System (AEBS) of automobiles, and this product has been mass-produced and applied in multiple large companies.