A control method, apparatus and electronic device
By adjusting the oxygen storage coefficient and fuel concentration of the three-way catalytic converter, the target window MAP and fuel concentration were determined, thus solving the problem of nitrogen oxide emission deviation caused by the aging of the three-way catalytic converter, achieving effective control of nitrogen oxide emissions, and improving environmental protection.
CN117469018BActive Publication Date: 2026-07-21WEICHAI POWER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2023-11-08
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
In existing technologies, nitrogen oxide emissions from three-way catalytic converters tend to deviate during the aging process, causing emissions to exceed limits. Existing correction coefficients cannot effectively control this.
Method used
By repeatedly adjusting the oxygen storage coefficient and fuel concentration of the initial window MAP, the target window MAP and target fuel concentration corresponding to the minimum nitrogen oxide emissions are determined, and nitrogen oxide emissions are controlled using the target window MAP and fuel concentration.
Benefits of technology
Effective control of nitrogen oxide emissions within the limits improves the environmental friendliness of the three-way catalytic converter in treating harmful gases.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117469018B_ABST
Abstract
A control method, device and electronic equipment, the method comprising: obtaining an initial window MAP and an initial fuel concentration, adjusting the oxygen storage amount coefficient of the initial window MAP multiple times, obtaining a window MAP corresponding to each oxygen storage amount coefficient, determining a target fuel concentration of the initial fuel concentration, and selecting a target window MAP from all window MAPs, and controlling the emission amount of nitrogen oxides based on the target fuel concentration and the target window MAP. Through the above method, the target window MAP and the target fuel concentration are determined, the window MAP and the fuel concentration are adjusted to the optimum, the emission amount of nitrogen oxides emitted by the three-way catalyst is minimized, the problem that the emission amount of nitrogen oxides exceeds the standard with the aging of the three-way catalyst is solved, and the control of nitrogen oxides is realized.
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