Exhaust gas recirculation control equipment, control method and storage medium

• Main Authors: YAN DONG, TUO HANYUN, DUAN SHAOYUAN, ZHANG WENLONG, YIN MANLI
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2022
• Subjects: BLASTING; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The embodiment of the invention provides exhaust gas recirculation control equipment and method and a storage medium, and belongs to the technical field of vehicles. The control method comprises the steps that the target exhaust gas recirculation rate is determined according to the working condition of an engine; determining the maximum high-pressure exhaust gas recirculation rate according to the working condition of the engine; determining an operation interval of an exhaust gas recirculation system according to the working condition of the engine; when the operation interval of the exhaust gas recirculation system is located in an exhaust gas recirculation mixing area and the target exhaust gas recirculation rate is larger than the maximum high-pressure exhaust gas recirculation rate, the opening degree of a high-pressure exhaust gas recirculation valve and the opening degree of a low-pressure exhaust gas recirculation valve are adjusted, the exhaust gas recirculation rate of the exhaust gas recirculation