Catalyst state estimation apparatus, catalyst state estimation method with information processing apparatus, and non-transitory recording medium in which program is stored

A catalyst state estimation method with an information processing apparatus,

• the information processing apparatus including:
• a first sensor that acquires first information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine and positioned on a most upstream side in the main passage when a plurality of the catalysts is provided in the main passage, the plurality of the catalysts being an identical type of catalysts,
• a second sensor that acquires second information about the exhaust gas that flows into the catalyst positioned on the most upstream side,
• a third sensor that acquires third information about an additive agent that is supplied to the catalyst positioned on the most upstream side,
• a memory that previously stores a catalyst state estimation model including at least one mathematical model, and
• a processor;
• the catalyst state estimation method comprising:
• acquiring, by the first sensor, the first information about a catalyst,
• acquiring, by the second sensor, the second information about the exhaust gas,
• acquiring, by the third sensor, the third information about the additive agent, and
• estimating, by the processor, a removal performance of the catalyst by applying the first information, the second information, and the third information to the catalyst state estimation model.

A non-transitory recording medium in which a program is stored, wherein:

• the program causes a computer to execute an acquisition step and an estimation step;
• the acquisition step is a step in which:
• a first sensor acquires first information about a catalyst that removes a toxic substance in an exhaust gas, the first sensor being provided in a main passage into which the exhaust gas flows from an internal combustion engine and positioned on a most upstream side in the main passage when a plurality of the catalysts is provided in the main passage, the plurality of the catalysts being an identical type of catalysts,
• a second sensor acquires second information about the exhaust gas that flows into the catalyst positioned on the most upstream side, and
• a third sensor acquires third information about an additive agent that is supplied to the catalyst positioned on the most upstream side;
• and
• the estimation step is a step in which a processor estimates a removal performance of the catalyst by applying the first information about the catalyst, the second information about the exhaust gas, and the third information about an additive agent to a catalyst state estimation model, the catalyst state estimation model including at least one mathematical model and being previously stored in a memory.