KR0185130B1 - Apparatus and method of fuel saving - Google Patents

Abstract

The present invention relates to a device and a method for reducing fuel waste when the vehicle is stopped for a long time idling or stalled, and intakes an exhaust hold branched from an exhaust manifold for delivering exhaust gas generated from the engine of the vehicle. It is connected to the manifold side, and an injector for supplying fuel to the ECU for controlling the engine by installing a valve at the front end of the exhaust hose and the valve is controlled to selectively prevent the supply of fuel to one cylinder and introduce exhaust gas. The fuel saving device and the fuel saving method using the device characterized in that to prevent the consumption of fuel to reduce the environmental pollution.

Description

Fuel saving device and method of automobile

1 is a schematic view from above of the engine of the present invention;

2 is a schematic cross-sectional view of the present invention.

* Explanation of symbols for the main parts of the drawings

10 engine 11: cylinder

12: auxiliary intake port 15: control valve of the auxiliary intake port

21: intake port 30: exhaust manifold

31: exhaust port 50: ECU

The present invention relates to a device and a method for reducing fuel consumption when driving a vehicle under low speed, circulating a part of the exhaust gas of the engine to the cylinder when the engine idles for more than a predetermined time to prevent the cooling of the engine An apparatus and method are provided to reduce the consumption of fuel.

In general, an engine used in an automobile is a device that generates a lot of power by arranging a plurality of cylinders and repeatedly performing intake, compression, explosion, and exhaust strokes in a cylinder while the pistons in each cylinder move up and down. When necessary, the engine speed is increased, and when less power is required, the engine speed is lowered so that the required power can be obtained.

The engine of a vehicle acting as described above requires a lot of power when the vehicle is running while the vehicle is running, but requires little power when the vehicle is stopped when the vehicle is stopped. However, since the engine continues to operate at a low speed, fuel is continuously consumed, causing waste of fuel and polluting the environment due to exhaust gas.

The present invention has been made to solve the above problems, when the engine is idle, a plurality of cylinders by supplying the exhaust gas without supplying fuel to one cylinder can reduce the waste of fuel and the engine is cooled The purpose is to prevent it.

The present invention for achieving the above object is connected to the intake manifold side in the exhaust manifold for transmitting the exhaust gas generated in the engine of the automobile, and to control the engine by installing a valve on the end of the exhaust hose By controlling the injector and the valve to supply fuel to the control unit (Electronic Cdntrol Unit (hereinafter ECU)) for the purpose of selectively blocking the fuel supply to one cylinder in order to prevent the exhaustion of fuel by introducing the exhaust gas and environmental pollution It is characterized in that to reduce the.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An intake manifold 20 to which an intake port 21 connected to an intake valve 13 installed on an upper surface of the cylinder 11 of the engine 10 is connected, and an exhaust port 31 connected to the exhaust valve 14. Branching the exhaust hose 33 branched in the middle of the exhaust manifold (30) connected to the auxiliary intake port (12) to the intake port (21) of each cylinder and the branched auxiliary intake port (12) The valve 15 is installed at the front end, but the valve 15 is configured to be controlled by the ECU.

According to the present invention configured as described above, the engine is introduced through the intake port 21 through the intake manifold 20 purified by the air cleaner 5 when the engine rotates at a high speed, and at this time, fuel and air are injected by injecting the fuel from the injector 13. To supply the mixed air into the cylinder and the piston 17 in the cylinder rises to compress the mixed air. When the piston reaches the top dead center, the spark plug 18 generates a spark to combust the mixed air. Power is generated by a force that lowers the piston due to thermal expansion inside the cylinder. One cylinder operates as above and generates power. One cylinder operates as described above and generates power. When using the four-cylinder engine 10 as shown in FIG. 1, four cylinders are continuously operated in the order of 1 → 3 → 4 → 2 cylinders. When the vehicle is running, the four cylinders explode continuously and generate power to drive the car, but the engine remains idle when the vehicle is stopped for a long time due to the explosion. Therefore, the ECU detects this and allows the exhaust gas to be circulated without supplying fuel to one of the four cylinders. At this time, all the control devices of the vehicle generate signals from the ECU that controls all the control devices and exhaust exhaust hold. When the exhaust gas control valve 35 of the exhaust hose branched at 30 is opened, the exhaust gas is discharged from the cylinder 11. The gas is discharged from the exhaust manifold 30 through the exhaust port 31 to the outside through the catalytic converter 37, but part of the gas is discharged to the auxiliary intake port 12 through the exhaust hose 33 to the auxiliary intake port 12. The valve 15 of 12 is drawn into the open cylinder 11, in which fuel is not injected from the injector 13 to the intake port 21 through which the exhaust gas is introduced, which is controlled by the ECU 50. . Therefore, since one cylinder is not supplied with fuel and cannot cause an explosive stroke, it is impossible to perform a practical operation.

At this time, if the explosive stroke is not carried out by continuously injecting exhaust gas into a predetermined cylinder, the cylinder is cooled to reduce efficiency during driving, thereby controlling the injection of fuel into four cylinders one by one. That is, when four cylinders are operated continuously, 1 → 3 → 4 → 2 → ① → 3 → 4 → 2 → 1 → ③ → 4 → 2 → 1 → 3 → ④ → 2 → 1 → 3 → 4 → ② → 1 → 3 cylinders in order to explode, but the cylinders ①, ③, ④ and ② do not supply fuel from the injector 13, so that the cylinders 1, 3, 4 and 2 explode sequentially. Since the stroke is not performed and the exhaust gas of the ta cylinder is supplied to the cylinder during the suction stroke, the cylinder is prevented from being cooled.

As described above, according to the present invention, when no power is required, such as when the vehicle is idle for a long time or when the vehicle is stopped due to congestion, fuel consumption can be reduced by controlling the fuel supply to one cylinder in sequence and exhaust gas. There is an effect to reduce the environmental pollution caused by.

Claims (2)

At the tip of the exhaust hose 33 branched from the exhaust manifold 30 for sending exhaust gas generated from the engine of the vehicle and the auxiliary intake port 12 branched from the exhaust hose and connected to the intake port 21. Fuel control device for a vehicle made by connecting the control valve 15 is connected to the ECU (50) for repeatedly operating the operation of the remaining cylinders except for one of the cylinders of the engine and intake exhaust gas. In a method for reducing fuel consumption of a vehicle, an ECU controlling an operating state of an engine selects one of cylinders of an engine through an exhaust hose branched from an exhaust manifold, and selectively stops supplying fuel to one cylinder sequentially. And controlling the explosion stroke of the engine by inhaling exhaust gas.