Control method of LPI lamp for LPI vehicle and logic therefor
AssigneeHyundai Motor Company
InventorJungjoo Park
Life of this patent
Estimating the term…
Abstract
A control method of an LPI lamp for an LPI vehicle and logic for the control method can turn on again an LPG switch when the LPG switch is unintentionally turned off, by making a driver recognize whether the LPG switch is turned off, by switching an LPI lamp on and off. For this configuration, the control method of an LPI lamp for an LPI vehicle includes checking whether an LPG switch that stops fuel supply to an engine has been turned on or off, and switching the LPI lamp on and off, when it is determined that the LPG switch has been turned off, in an LPI vehicle in an ignition-on state.
Claims4
A control method of a Liquefied Petroleum Injection (LPI) lamp for an LPI vehicle, the method comprising:
- providing a Liquefied Petroleum Gas (LPG) switch that can stop fuel supply to an engine;
- checking whether the LPG switch has been turned on or off;
- if the LPG switch is off and the vehicle is in an ignition-on state, switching the LPI lamp on and off for blinking to inform a driver that the LPG switch has been turned off;
- and
- if the LPG switch is on, the LPI lamp is off, the engine has been started and the vehicle is in a common traveling mode, checking whether fuel pressure of a fuel line for supplying fuel to the engine has decreased to less than a reference pressure;
- switching the LPI lamp on and off, if the fuel pressure has decreased to less than the reference pressure, to inform the driver that an abnormal decrease of the fuel pressure has occurred;
- and
- checking, if the fuel pressure is above the reference pressure, whether a problem has occurred in an LPG switch circuit for activating the LPG switch, and switching the LPI lamp on and off for blinking to inform the driver if a problem has occurred in the LPG switch circuit.
Dependencies are inferred from the claim text.