Intelligent post-treatment and regeneration control method for engineering machinery engine

An intelligent post-treatment and regeneration control method for an engineering machinery engine, comprising:

• an automatically regenerated auxiliary load loading control method and a manually regenerated auxiliary load loading control method, wherein:
• A. the automatic regeneration auxiliary load loading control method comprises the following steps:
• when the accumulation of the particles in a diesel particulate filter exceeds a specified standard and the exhaust temperature of the engine is higher than the regeneration required temperature, an engine controller transmits an auxiliary regeneration packet;
• after receiving the packet, a main controller determines the external environment temperature;
• the main controller supplies corresponding current for the regeneration electromagnetic valve of the particulate filter according to the obtained external environment temperature and the corresponding relationship between a preset environment temperature and a loading current, so as to obtain a load matching the environment temperature;
• the main controller monitors the exhaust temperature at the inlet of the diesel particulate filter catalytic converter, when the temperature of the diesel oxidation catalytic converters is lower than the lower limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the particulate filter is raised to increase the load, when the temperature of the diesel oxidation catalytic converters is higher than the upper limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the particulate filter is declined to decrease the load, so as to achieve the automatic closed-loop control of the regenerated auxiliary loading;
• B. the manually regenerated auxiliary load loading control method comprises the following steps:
• when the main controller monitors the button of the manually regenerated pressed, an engine controller transmits an auxiliary regeneration packet;
• after receiving the packet, a main controller determines the external environment temperature;
• the main controller supplies corresponding current for the regeneration electromagnetic valve of the particulate filter according to the obtained external environment temperature and the corresponding relationship between a preset environment temperature and a loading current, so as to obtain a load matching the environment temperature;
• the main controller monitors the temperature, thus, when the temperature of the diesel oxidation catalytic converters is lower than the engine regeneration required exhaust temperature, increasing the current of the regeneration electromagnetic valve of the particulate filter to increase the load, when the temperature of the diesel oxidation catalytic converters is higher than the upper limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the particulate filter is declined to decrease the load, so as to achieve the manual closed-loop control of the regenerated auxiliary loading.