초록 ▼

An intelligent post-treatment and regeneration control method for an engineering machinery engine, comprising an automatic and manual regenerated auxiliary load loading control method. The method steps include, when the accumulation of the particles in a diesel particulate filter exceeds a specified

An intelligent post-treatment and regeneration control method for an engineering machinery engine, comprising an automatic and manual regenerated auxiliary load loading control method. The method steps include, 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; and the main controller monitors the exhaust temperature at the inlet of the diesel particulate filter catalytic converter to achieve automatic closed-loop control of the regeneration auxiliary loading.

대표청구항 ▼

1. 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

1. 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 an accumulation of the particles in a diesel particulate filter exceeds a specified standard and an exhaust temperature of the engine is higher than a regeneration required temperature, an engine controller transmits an auxiliary regeneration packet;after receiving the auxiliary regeneration packet, a main controller determines an external environment temperature;the main controller supplies corresponding current for a regeneration electromagnetic valve of the diesel 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 external environment temperature;the main controller monitors the exhaust temperature at an inlet of the diesel particulate filter, when a temperature of a diesel oxidation catalytic converters is lower than a lower limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the diesel particulate filter is raised to increase the load, when the temperature of the diesel oxidation catalytic converter is higher than an upper limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the diesel particulate filter is declined to decrease the load, so as to achieve the automatic closed-loop control of the regenerated auxiliary loading; andB. the manually regenerated auxiliary load loading control method comprises the following steps:when the main controller monitors a button of the manually regenerated pressed, an engine controller transmits an auxiliary regeneration packet; after receiving the auxiliary regeneration packet, a main controller determines the external environment temperature;the main controller supplies corresponding current for the regeneration electromagnetic valve of the diesel 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 converter is lower than the engine regeneration required exhaust temperature, increasing the current of the regeneration electromagnetic valve of the diesel particulate filter to increase the load, when the temperature of the diesel oxidation catalytic converter is higher than the upper limit of the engine regeneration required exhaust temperature, the current of the regeneration electromagnetic valve of the diesel particulate filter is declined to decrease the load, so as to achieve the manual closed-loop control of the regenerated auxiliary loading. 2. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the engine controller transmits an auxiliary regeneration packet by a CAN bus. 3. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the lower limit of the engine regeneration required exhaust temperature is 250° C. 4. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the upper limit of the engine regeneration required exhaust temperature is 300° C. 5. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the corresponding relationship between a preset environment temperature and a loading current set by a software of the manually regenerated auxiliary load loading control method is similar with the corresponding relationship between a preset environment temperature and a loading current set by the software of the automatic regenerated auxiliary load loading control method. 6. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the automatic regenerated auxiliary load loading control method changes the current of the regeneration electromagnetic valve of the diesel particulate filter by controlling a corresponding pulse width modulation signal of the main control, so as to control different hydraulic load loading. 7. The intelligent post-treatment and regeneration control method for an engineering machinery engine as disclosed in claim 1, wherein the manual regenerated auxiliary load loading control method changes the current of the regeneration electromagnetic valve of the diesel particulate filter by controlling a corresponding pulse width modulation signal of the main control, so as to achieve different hydraulic load loading.