一种发动机再循环系统控制方法、装置、系统和汽车
By introducing EGR return gas line, vent line, valve and vent valve into the engine recirculation system, combined with real-time operating condition judgment and dynamic adjustment, the shortcomings of EGR rate control under different operating conditions of the engine are solved, combustion stability and efficient warm-up are achieved, and the thermal efficiency and reliability of the engine are improved.
CN122407385APending Publication Date: 2026-07-17WEICHAI POWER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
Smart Images
Figure CN122407385A_ABST
Abstract
本发明提供一种发动机再循环系统控制方法、装置、系统和汽车。该方法涉及内燃机控制技术领域，方案包括：判断发动机是否处于怠速或暖机工况；若是，控制放气阀打开、EGR 阀关闭；若否，控制 EGR 阀打开，并获取与发动机需求 EGR 率匹配的目标放气阀开度以控制放气阀开启角度。本申请的有益效果在于：有效解决传统 EGR 系统在高负荷下 EGR 率不足及低温工况下增压器结冰的问题，实现全工况下废气再循环率的精准控制，提升发动机热效率与运行可靠性。
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