| 摘要 |
The present invention discloses a control method and a control system for fuel supply of a dual-fuel car, and belongs to the technical field of vehicle control. The method comprises: in a case in which an engine is in a gaseous fuel state, an electronic control unit detecting a working state of a pressure sensor; when the pressure sensor works normally, the electronic control unit receiving a pressure signal input by the pressure sensor, where the pressure signal is used to represent a pressure value inside a gaseous fuel tank; and when a time during which the pressure value inside the gaseous fuel tank stays less than or equal to a preset pressure value is greater than or equal to preset duration, the electronic control unit controlling the engine to switch to a gasoline state. By means of the method, fuel switching control can be implemented accurately according to a remaining amount of gaseous fuel inside the gaseous fuel tank, so that a phenomenon of frequent switching between gasoline and gaseous fuel caused by signal fluctuations because a gas tank high pressure approximates an exit limit point can be avoided. |
