System and method for performing lambda control of a gasoline engine using a burner
By using a burner control module in the exhaust gas treatment system, the burner fuel supply is controlled based on the difference between the target and the actual exhaust gas λ, which solves the problem of difficulty in accurately controlling the exhaust gas λ in the prior art, and achieves efficient and low-cost exhaust control.
CN116044591BActive Publication Date: 2025-03-18TANNIC AUTOMOTIVE OPERATIONS LLC
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Patent Information
- Application Number
- CN202211288193.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-10-28
- Filing Date
- 2022-10-20
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2042-10-20
AI Technical Summary
Technical Problem
Existing exhaust treatment systems are difficult to accurately control the exhaust gas λ of the engine fuel supply and the three-way catalyst input while minimizing costs.
Method used
The burner control module is adopted to control the gasoline fuel supply of the burner by an open-loop or closed-loop manner based on the difference between the target exhaust gas λ and the actual exhaust gas λ to adjust the exhaust gas λ.
Benefits of technology
Accurate control of exhaust gas λ is achieved, fuel consumption and exhaust pollution are reduced, and the cost is low.
✦ Generated by Eureka AI based on patent content.
Abstract
A vehicle control system includes: a fuel control module configured to control gasoline fuel supply to an engine in an open loop based on a target engine lambda; and a burner control module configured to control gasoline fuel supply to a burner based on (a) a target lambda input to a three-way catalyst (TWC) in an exhaust system of the engine and (b) lambda of exhaust gas input to the TWC. The burner is coupled to the exhaust system between (a) an output of the engine and (b) an input of the TWC.
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