| 摘要 |
A universal energy-saving system for multiple working conditions includes an electronic control unit and an actuator. The electronic control unit is adapted to sample, process running, information of a vehicle and an instruction of a driver, control on and off of a fuel injector, and adapted to drive the actuator to lock or release an exhaust valve after opening the exhaust valve, so as to realize working under multiple working conditions. A, normal working condition, the performance of the original vehicle does not change; B, racing and gliding with reduced pressure, no fuel is used and there is no emission; C, working with reduced cylinders when waiting red light and cruising, non-working cylinders race with reduced pressure and no fuel. The features include: fuel of the engine is cut off when gliding, the exhaust valve is constantly half open, the engine races with reduced pressure; the inlet valve opens and closes normally, an inlet manifold is vacuum, direction and braking are not affected. When needing to do work or brake, the engine switches to the normal working condition automatically. Even if a fuel saving system fails, only the fuel saving function is lost, whereas other functions are normal. It is favorable for the engine to work at a best performance field. The engine may work discontinuously. It is possible to save fuel and reduce emission by 15-40%. The structure is simple and practicable. It is easy to be combined with existing techniques and is applicable for modification of old vehicles and equipment of new vehicles. |
