Fuel level system for automobile
AssigneeKorea Automobile Fuel Systems Ltd. (KAFUS)
InventorsHyun Bok Kim, In Seok Sohn, Young Chol Chol, Han Mu Kim
Life of this patent
Estimating the term…
Abstract
The present invention relates to a fuel level system for an automobile, and more particularly, to a fuel level system for use in informing a driver of the amount of remaining fuel in a fuel tank of an automobile using gasoline, light oil, gas or the like, wherein a flowing electric current is increased in a contact of a level sender unit. The fuel level system of the present invention comprises a level sender unit installed in a fuel tank of the automobile, a fuel gauge, and a resistor installed inside or outside the level sender unit within the fuel level system to increase an electric current flowing through a contact of the level sender unit.
Claims10
A fuel level system for an automobile including a level sender unit installed in a fuel tank of the automobile and a fuel gauge, comprising:
- a resistor installed inside or outside the level sender unit within the fuel level system to increase an electric current flowing through a contact of the level sender unit.
A fuel level system for an automobile, comprising:
- a level sender unit which is installed within a fuel tank, and includes a level resistor of which a resistance value varies by means of a movable piece operated in a state where it is interlocked with a float, and an additional resistor connected in series to a side of the level resistor and an ignition power source or constant-voltage power source connected in series to the additional resistor;
- and
- an ECU which includes a pull-up resistor connected in series to the level resistor of the level sender unit and to a power source thereof, and a monitoring resistor and an AD converter connected to the pull-up resistor, thereby measuring the value of voltage drop due to the level resistor and the pull-up resistor and sending the measured value to a fuel gauge through the AD converter.
A fuel level system for an automobile, comprising:
- a level sender unit which is installed within a fuel tank, and includes a level resistor of which a resistance value varies by means of a movable piece operated in a state where it is interlocked with a float, and an additional resistor of which one side is connected in series to the level resistor and the other side is grounded;
- and
- an ECU which includes a pull-down resistor of which one side is grounded and the other side is connected in series to the level resistor of the level sender unit, a power source connected in series to the movable piece, and a monitoring resistor and an AD converter connected to the pull-down resistor, thereby measuring the value of voltage drop due to the level resistor and the pull-down resistor and sending the measured value to a fuel gauge through the AD converter.
A fuel level system for an automobile, comprising:
- a level sender unit which is installed within a fuel tank, and includes a level resistor of which a resistance value varies by means of a movable piece operated in a state where it is interlocked with a float, and an additional resistor connected in series to a side of the level resistor and an ignition power source or constant-voltage power source connected in series to the additional resistor;
- and
- a fuel gauge which includes a pull-up resistor connected in series to the level resistor of the level sender unit and to a power source thereof, and a monitoring resistor and a microcomputer connected to the pull-up resistor, whereby the microcomputer measures the value of voltage drop due to the level resistor and the pull-up resistor and informs a user of the value.
A fuel level system for an automobile, comprising:
- a level sender unit which is installed within a fuel tank, and includes a level resistor of which a resistance value varies by means of a movable piece operated in a state where it is interlocked with a float, and an additional resistor of which one side is connected in series to the level resistor and the other side is grounded;
- and
- a fuel gauge which includes a pull-down resistor connected in series to the level resistor of the level sender unit and to a power source thereof, and a monitoring resistor and a microcomputer connected to the pull-down resistor, whereby the microcomputer measures the value of voltage drop due to the level resistor and the pull-down resistor and informs a user of the value.
A fuel level system for an automobile, comprising:
- a level sender unit which is installed within a fuel tank, and includes a level resistor of which a resistance value varies by means of a movable piece operated in a state where it is interlocked with a float, and an additional resistor connected in series to a side of the level resistor and an ignition power source or constant-voltage power source connected in series to the additional resistor;
- and
- a cross coil or bimetal gauge provided with a power source and connected in series to the level resistor of the level sender unit and the power source.
Dependencies are inferred from the claim text.