KR19990053570A - Fuel saving driving device and control method of automobile - Google Patents

Abstract

The present invention enables the use of the engine having a plurality of cylinders to obtain a large output to save fuel by allowing the use of the cylinder selectively depending on the driving conditions of the vehicle or the condition of the load in order to save fuel A reduced driving device and a control method, comprising: a saving selection switch (10) for selecting a fuel saving driving state by a driver's selection, and a garage sensor (20) for measuring a height of a vehicle body to measure a loading state of cargoes ), The vehicle speed sensor 30 for measuring the traveling speed of the vehicle, the fuel injection pump 6 for selectively injecting fuel into each cylinder, the value of the energy saving selection switch 10 and the height sensor 20 ) And a control unit 40 for controlling the fuel injection pump 6 to receive an optimum fuel economy by inputting the value of the vehicle speed sensor 30 and the vehicle speed sensor 30. Therefore, there is an advantage that fuel efficiency can be improved by making the number of cylinders burned different.

Description

Fuel saving driving device and control method of automobile

The present invention relates to a fuel saving driving device and a control method of a vehicle, and more particularly, to select a fuel according to the driving conditions or load conditions of a vehicle to reduce fuel when using an engine having a plurality of cylinders to obtain a large output. The present invention relates to a fuel-saving driving device and a control method of a vehicle that can save fuel by allowing a cylinder to be used.

An automobile refers to a vehicle that can freely travel on a road without using rails by using the power of an engine installed in a vehicle body. When classified as an engine and an energy source, it is classified as a steam car, an electric car, or an internal combustion engine car.

The steam car is the mother of the current internal combustion engine car, and has become a thing of the past because of its large unit output. As part of recent emissions measures, research and development is being promoted. The electric vehicle drives wheels by rotating an electric motor using electric energy such as a battery. It is the oldest after steam cars, but it has been attracting attention again due to problems such as automobile pollution and petroleum resources.

Daum internal combustion engine cars now occupy most of the automobiles, including gasoline engine cars, diesel engine cars, LP gas cars, rotary engine cars, gas turbine cars, jet engine cars, and rocket cars.

The internal combustion engine burns inside the engine, and directly converts the chemical energy held by the mixer itself into thermal energy by combustion to directly use the work when the combustion gas expands. Engines belonging to this include piston reciprocating engines, rotary engines, gas turbines and jet engines.

Because of the expansion days of the combustion gas, large engines are being developed with a large number of cylinders that explode in order to exert great force.

FIG. 1 is a side view schematically showing a general eight cylinder engine, in which the fuel drawn from the fuel tank 2 is transferred to the injection pump 6 by a feed pump 4 and operated by a cap as shown in FIG. The injection pump 6 delivers fuel to the combustion chamber of the engine for combustion.

However, in the case of the eight-cylinder engine as described above, since the explosion continues in eight cylinders, it exerts a great force. However, when there is no load or the road is in good condition, combustion occurs in all the eight cylinders of the same output. There is a problem that there are very disadvantages in terms of fuel efficiency.

The present invention has been made to solve the above problems, an object of the present invention is to selectively use the cylinder of the engine in accordance with the state of the road or the loading state of the cargo to improve the optimum output and fuel economy It is an object of the present invention to provide an apparatus and control method for reducing fuel in a vehicle.

1 is a side view showing a general engine.

Figure 2 is a perspective view schematically showing an engine equipped with a fuel reduction driving apparatus of an eight-cylinder engine according to the present invention.

3 is a block diagram showing an apparatus for driving fuel reduction of a vehicle according to the present invention.

4 is a flowchart illustrating an operation procedure for explaining a method for controlling a fuel saving driving device for a vehicle according to the present invention.

-Explanation of symbols for the main parts of the drawings-

6: fuel injection pump 10: reduction selector switch

20: height sensor 30: vehicle speed sensor

40: control unit

In order to achieve the above object, a fuel reduction driving device of a vehicle of the present invention includes a saving selection switch for selecting a fuel saving driving state by a driver's selection, and a height of a vehicle body for measuring a loading state of cargo. A height sensor, a vehicle speed sensor for measuring the driving speed of the vehicle, an injection pump for selectively injecting fuel into each cylinder, a value of a reduction selector switch, a value of the garage sensor and a vehicle speed sensor It is composed of a control unit for controlling the injection pump to control to have an optimal fuel economy.

In addition, the control method of the fuel-saving driving device of the vehicle compares the power state, and ends when the power is turned off. Returning to the step of comparing the power supply status again, measuring the speed of the vehicle from the vehicle speed sensor and measuring the height change of the vehicle body from the garage sensor, if the reduction selector switch is activated, Compared to whether the car body is lowered by the load of the cargo and comparing whether the cargo is loaded or not. If the cargo is loaded, return to the normal operation and compare the power status. By comparing the input values and comparing the speed of the vehicle with no change in speed, If not, the operation is returned to the step of performing normal operation and comparing the power state, and in the case of the constant speed operation, controlling the injection pump to reduce fuel consumption and returning to the step of comparing the power state.

Referring to the operation of the present invention made as described above are as follows. When the driver selects the saving selection switch, the vehicle load sensor measures the condition of the cargo loaded on the vehicle, while the vehicle speed sensor measures whether the vehicle is constantly running without acceleration or deceleration and then does not load or When driving at speed, the injection pump is controlled so that fuel is injected only to certain cylinders of the total cylinders, so that combustion occurs only in certain cylinders, thereby saving fuel.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the present embodiment is not intended to limit the scope of the present invention, but is presented by way of example only and the same parts as in the conventional configuration using the same reference numerals and names.

2 is a side view schematically showing an eight-cylinder engine equipped with a fuel-saving driving device for a vehicle according to an embodiment of the present invention.

As shown in FIG. 2, it can be seen that the hose connected between the injection pump 6 and the cylinder is divided in half so that the fuel pumped from the injection pump 6 can be divided and supplied by half of the total cylinders. That is, the injection pump 6 may supply fuel only to the four cylinders on the upper side of the drawing, and to supply fuel only to the four cylinders on the lower side of the drawing.

3 is a block diagram showing an apparatus for reducing fuel consumption of an automobile according to an embodiment of the present invention.

As shown in Figure 3, the driver's saving selection switch 10 to selectively use when the driver wants to save fuel, and the height of the vehicle body by the load when the cargo is loaded to know the loading state of the cargo The vehicle height sensor 20 for measuring the change, the vehicle speed sensor 30 for measuring whether the vehicle is constant speed or acceleration and deceleration driving by measuring the speed of the vehicle, and to selectively supply fuel to any cylinder When the injection pump 6 and the decrement selection switch is operated, the garage sensor 20 and the vehicle speed sensor 30 are operated to control the injection pump 6 for supplying fuel to each cylinder by inputting the measured values. The control unit 40 selectively controls to inject fuel into an arbitrary cylinder.

In this embodiment, an eight-cylinder engine is described as an example. Therefore, the fuel is injected into the ship wall by arbitrary four cylinders among the eight cylinders.

When explaining the operation of the present embodiment made as described above with reference to the flowchart of Figure 4 showing the operating sequence of the fuel-saving driving device of the vehicle as follows.

First, compare the state of the power supply (S10). That is, when the power is turned off, and when the power is turned on and compares the operating state of the saving selection switch 10 (S20). In this case, when the reduction selector switch 10 for the reduction of fuel is not operated, the injection pump 6 is controlled to be injected into all cylinders to be combusted in all cylinders for normal operation, and the power supply is compared. It is returned to S10 (S70). However, when the reduction selection switch 10 is operated, the speed of the vehicle is measured from the vehicle speed sensor 30 and the height change of the vehicle body is measured from the height sensor 20 (S30). From the result of the measurement, the value of the height sensor 20 is compared with whether the vehicle body is lowered due to the load of the cargo, and the load is compared with the load (S40). As a result of the comparison, when the cargo is loaded, fuel is supplied to all cylinders in order to obtain a large output, and the normal operation is performed so that the maximum output can be exhibited. However, in case of tolerance, that is, when no load is loaded, the input value of the vehicle speed sensor 30 is compared to compare whether the vehicle has a constant speed without changing the speed (S50). At this time, if the vehicle is not driving at constant speed, that is, if the acceleration / deceleration occurs frequently, the fuel is supplied to all cylinders in order to show a large output when the vehicle is accelerated. Return to step S10 (S70). However, in the case of the constant speed operation, the injection pump 6 is controlled to reduce fuel consumption by supplying fuel to only an arbitrary cylinder for saving operation, and is returned to the step S10 of comparing the power states (S60).

As described above, the present invention is advantageous in that it is possible to exert maximum power as necessary while improving fuel economy by varying the number of cylinders burned according to the driving state of the vehicle and the loading state of cargo.

Claims (2)

An energy saving selection switch 10 for selecting a fuel saving driving state by a driver's selection; And a height sensor 20 for measuring the height of the car body to measure the loading state of the cargo, A vehicle speed sensor 30 for measuring a traveling speed of the vehicle; An injection pump 6 for selectively injecting fuel into each cylinder, The control unit 40 for controlling the injection pump 6 receives the value of the saving selection switch 10, the value of the height sensor 20 and the value of the vehicle speed sensor 30. Fuel reduction driving device of the vehicle consisting of. Comparing the power state is terminated if the power is turned off (S10) and When the power is turned on by comparing the operating state of the reduction selector switch 10, if the reduction selector switch 10 is not operated, the normal operation and returning to the step of comparing the power state again (S20), When the reduction selection switch 10 is operated, measuring the speed of the vehicle from the vehicle speed sensor 30 and measuring the height change of the vehicle body from the garage sensor 20 (S30); When the cargo is loaded by comparing whether the vehicle body is lowered by the load of the cargo to the value of the garage sensor 20, and whether the cargo is loaded or not, the operation is returned to the normal operation and the comparison of the power supply status (S10). Step (S40) and In case of tolerance, the input value of the vehicle speed sensor 30 is compared to compare whether the vehicle has a constant speed without changing the speed. (S50) and, In the case of the constant speed operation, the injection pump 6 is controlled to reduce fuel consumption and the power state is returned to the step S10 of comparing the power states (S60). Fuel control device control method for a vehicle, characterized in that consisting of.