一种多缸电控柴油机各缸工作均匀性控制方法及控制系统
By real-time monitoring and dynamic correction of the intake pressure of each cylinder in a multi-cylinder diesel engine, the injection timing and fuel pulse width are optimized, solving the problem of uneven operation of each cylinder in the diesel engine and improving the overall performance and reliability of the engine.
CN116658325BActive Publication Date: 2026-07-17CHONGQING WEICHAI ENGINE FACTORY +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING WEICHAI ENGINE FACTORY
- Filing Date
- 2023-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In multi-cylinder diesel engines, the intake pressure difference between cylinders during the intake process leads to uneven operation of each cylinder, affecting the overall engine economy, performance stability and reliability.
Method used
By monitoring the intake pressure of each cylinder in a multi-cylinder diesel engine in real time, the injection timing and fuel pulse width of a single cylinder are dynamically corrected. The electronic control unit is used to calculate and correct the injection advance angle and energization time to optimize single-cylinder combustion.
Benefits of technology
Improve the uniformity of operation of each cylinder in a multi-cylinder diesel engine, thereby enhancing the overall economy, performance stability, and reliability of the engine.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116658325B_ABST
Abstract
本发明公开了一种多缸电控柴油机各缸工作均匀性控制方法及控制系统，其中控制方法包括以下步骤：判断各缸工作参数是否出现异常；当出现异常时停止修正；当未出现异常时，从对应的提前角修正map和加电时间修正map中，查找对应的提前角修正值和加电时间修正值；利用提前角修正值对预设定提前角进行修正，得到喷油提前角；利用加电时间修正值对其预设定加电时间进行修正，得到加电时间；执行所有缸的喷油提前角和加电时间。可见，本发明通过可动态修正单缸喷油时刻和供油脉宽，精准组织和优化单缸燃烧，改善多缸柴油机各缸爆发压力和排气温度的均匀性，提升柴油机各缸工作均匀性，从而提高整机经济性、性能稳定性和可靠性。
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