混合交通工具中用于蒸发排放物吹扫控制的系统及方法
By adjusting the operating point and intake pressure of the internal combustion engine in hybrid vehicles, the problem of insufficient evaporative emission purging opportunities in hybrid vehicles is solved, achieving effective steam emission and fuel efficiency optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Filing Date
- 2023-02-01
- Publication Date
- 2026-07-17
AI Technical Summary
The narrow operating range of internal combustion engines in hybrid vehicles limits effective evaporative emissions (EVAP) purge cycle opportunities, leading to vapor buildup and emissions problems.
The controller determines whether the internal combustion engine's operating speed is within the target purging range and applies a cost factor to adjust the operating point to incentivize the engine to operate at a torque favorable for purging. Combined with an atmospheric pressure sensor and purging valve, the controller controls the collection and release of evaporative emissions, optimizing intake pressure and fuel efficiency.
Without affecting the efficiency of the internal combustion engine, the purging efficiency of the evaporative emissions control system is improved, ensuring effective vapor emission, meeting emission standards, and optimizing fuel consumption.
Smart Images
Figure CN117386533B_ABST