一种用于增压汽油机GPF故障模拟检测装置及方法
By designing a GPF fault simulation and detection device for turbocharged gasoline engines, and utilizing a butterfly valve and a verification differential pressure sensor, the fault simulation process is simplified and the detection efficiency is improved. This solves the problems of installation difficulties and accuracy in GPF fault detection in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
- Filing Date
- 2023-03-03
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the GPF fault detection method has the problems of time-consuming and labor-intensive installation and disassembly of faulty parts, difficult transportation and high cost, and it cannot accurately detect blockages and remove differential pressure under the diagnostic conditions specified by the manufacturer.
A fault simulation and detection device for a turbocharged gasoline engine's GPF is designed. By connecting pipes, regulating pipes, and boost pipes, combined with a butterfly valve and a verification differential pressure sensor, fault simulation and detection of the GPF can be achieved, including the simulation and detection process of particulate matter filter removal and blockage faults.
It simplifies the fault simulation process, improves detection efficiency, and can accurately determine the working status of the OBD system under different operating conditions, and calibrate blockages and remove specified differential pressure under diagnostic conditions.
Smart Images
Figure CN116413038B_ABST