KR19990027123A - Fuel injection control device for inter-vehicle distance adaptation - Google Patents

Abstract

The present invention relates to a vehicle-adaptive fuel injection control device for a vehicle, and to provide an apparatus for controlling the injection of fuel to a vehicle having a safety distance not secured for safe driving of a vehicle. Electronic fuel injection valve 18 for injecting a mixture mixed with fuel into the combustion chamber of the engine 20 under electronic control of the fuel amount in response to the degree of inflow of air by the opening value of the engine 20 and the throttle position valve 15. An engine fuel supply apparatus for a vehicle having a vehicle comprising: a start switch (2) for turning on / off a start of a vehicle, a distance detector (4) installed in front of a corresponding vehicle and detecting a distance from a front obstacle; The vehicle speed detection unit 6 which detects the vehicle speed of the corresponding vehicle at the start-up of the switch 2, and the setting data of the fuel amount varying according to the distance between the vehicle speed and the front obstacle of the vehicle are stored. If the inter-vehicle distance detected from the data memory 8 and the distance detection unit 4 is less than or equal to the set distance, and the vehicle speed detected by the vehicle speed detector 6 is equal to or greater than the set vehicle speed, the amount of fuel corresponding to the detection result is determined. A control unit 10 for adjusting the opening value of the throttle position valve 15 and controlling the fuel injection interval with respect to the electromagnetic fuel injection valve 18 as determined by the setting data from the memory 8; Characterized in that configured.

Description

Fuel injection control device for inter-vehicle distance adaptation

The present invention relates to a vehicle-adaptive fuel injection control device for a vehicle, and more particularly, when an obstacle (for example, a vehicle in front of the vehicle) is detected while driving a corresponding vehicle, the vehicle corresponds to a distance from the detected obstacle. It relates to an inter-vehicle distance adaptive fuel injection control device for controlling the amount of fuel injected into the engine of the vehicle.

In general, a vehicle is equipped with an engine as a power means for providing driving power, and requires fuel for driving the engine, and also opens the throttle position valve to allow the fuel to be burned in an optimal state. And an electromagnetic fuel injection valve for injecting a mixture mixed with the fuel to the combustion chamber of the engine under the electronic control of the fuel amount in response to the degree of inflow of air.

Then, the fuel injection degree to the engine is adjusted to the opening and closing degree of the engine throttle valve which the driver manually operates the accelerator pedal and is mechanically connected to the accelerator pedal.

In addition, a brake system is provided as a means for braking a wheel that rotates by the rotational force of the engine as a power source to decelerate or slow down / stop the speed of the vehicle running by the rotational power of the engine.

However, when a low-speed vehicle appears in front of the vehicle while the vehicle is traveling with the high-speed driving set by the transmission, or when the vehicle changes lanes in front of the vehicle with an unclear safety distance and enters the same lane. The risk of a collision accident is significantly increased when the vehicle behind the vehicle continues to accelerate and enter the safety distance with the vehicle ahead.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in the case where an obstacle suddenly appears from the front while the vehicle is running, or when the rear vehicle continuously accelerates the vehicle speed ignoring the safety distance with the front vehicle, In addition to indicating the danger of not securing the safety distance of the vehicle, the electronic fuel injection valve is automatically operated to provide safe vehicle-induced distance-injected fuel injection control device that can induce safe driving by preventing further acceleration. There is a purpose.

In order to achieve the above object, according to a preferred embodiment of the present invention, a mixer mixed with fuel under the electronic control of the fuel amount in response to the inflow of the air by the opening value of the engine and the throttle position valve providing the driving power in the vehicle An engine fuel supply device for a vehicle equipped with an electronic fuel injection valve for injecting a combustion chamber of an engine, comprising: a start switch for turning a vehicle on and off, and a distance provided in front of a vehicle to detect a distance from a front obstacle A detection unit, a vehicle speed detection unit for detecting a vehicle speed of the vehicle when starting by the start switch, a data memory in which setting data of fuel amount varying according to the distance between the vehicle speed and the front obstacle of the vehicle is stored, and detected from the distance detection unit If the inter-vehicle distance is less than or equal to the set distance and the vehicle speed detected by the vehicle speed detector And a control unit configured to determine the fuel amount corresponding to the output result by setting data from the data memory, to adjust the opening value of the throttle position valve, and to control the fuel injection interval for the electronic fuel injection valve. Provided is a fuel injection control apparatus for an inter-vehicle distance adaptive vehicle.

According to the fuel injection control apparatus for a vehicle according to the present invention having the above-described configuration, the safety distance is not secured based on experimental values previously calculated and stored in a data memory relating to the vehicle speed and distance of the vehicle for safe driving of the vehicle. Injection control of fuel is performed on the vehicle.

1 is a block diagram showing the overall configuration of a vehicle-in-vehicle distance adaptive fuel injection control apparatus according to an embodiment of the present invention,

FIG. 2 is a flowchart illustrating the operation of the vehicle-in-vehicle distance adaptive fuel injection control apparatus in accordance with an embodiment of the present invention.

* Setting of symbols for the main parts of drawings

2: start switch, 4: distance detection unit,

6: vehicle speed detection unit, 8: data memory,

10: control unit, 12: display means,

14: alarm sound generating means, 16: electronic fuel injection valve drive unit,

18: Electronic fuel injection valve.

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

1 is a block diagram of a vehicle-in-vehicle distance adaptive fuel injection control apparatus according to an embodiment of the present invention.

In the figure, reference numeral 2 denotes a start switch of a vehicle which turns on / off the start of the corresponding vehicle.

4 is a distance for detecting a distance to an obstacle (for example, a vehicle) that is operated by the battery power source B + applied when the starting switch 2 is turned on by the start switch 2 and appears in front of the corresponding vehicle. It is a detection part and consists of an ultrasonic transmitter, a receiver, a counter, or an infrared sensor, for example.

6 denotes a vehicle speed detection unit which is operated by a battery power source B + applied when the vehicle is turned on by the start switch 2 and detects the vehicle speed of the vehicle, and the vehicle speed detection unit 6 is usually a light emitting element. And an optical sensor comprising a light receiving element.

8 denotes a data memory in which setting data of a fuel amount that varies according to the vehicle speed of the vehicle and the distance between the front obstacles is stored.

10, if the inter-vehicle distance detected from the distance detection unit 4 is less than or equal to the set distance and the vehicle speed detected by the vehicle speed detection unit 6 is equal to or greater than the set vehicle speed, the fuel amount corresponding to the detection result is sent to the data memory 8; And a control unit for generating a control signal for controlling the fuel injection value determined by the setting data.

12 is a display means for receiving a control signal generated by the controller 10 when the vehicle speed detected by the distance detector 4 and the vehicle speed detector 6 and the corresponding distance thereof are dangerous values, and displaying the degree of danger. For example, the display means 12 has a display area for displaying the relative speed with the obstacle, a display area for displaying the distance between the obstacle, and a display area for displaying the safety distance according to the speed between the corresponding vehicle and the obstacle. It consists of an LCD panel.

14 denotes an alarm sound generating means composed of, for example, a lamp or a buzzer to be operated by an alarm control signal applied under the control of the controller 10 when the safety distance is not secured.

15 reads the fuel injection amount according to the vehicle speed and the distance stored in the data memory 8 and inputs the corresponding air amount into the engine according to the control signal generated by the control unit 10 and calculates the air inflow amount according to the fuel amount. The throttle position valve regulated by the opening value is shown.

16 denotes an electronic fuel injection valve driving unit for controlling the fuel injection amount based on the control signal of the control unit 10 corresponding to each operating parameter of the engine (engine speed, intake air amount, throttle valve opening degree, etc.).

18 denotes an electronic fuel injection valve configured to control the amount of fuel injected into the engine 20 by the electronic fuel injection valve driver 16.

Next, the operation of the inter-vehicle distance adaptive fuel injection control apparatus for a vehicle according to the present invention having the above-described configuration will be described in detail with reference to the flowchart shown in FIG. 2.

First, when the start switch 2 of the corresponding vehicle is turned on in step 30, the vehicle speed detecting unit 6 and the distance detecting unit 4 are applied to the battery power source B + applied through the start switch 2. Will be activated.

Then, in step 32, the vehicle speed detecting unit 6 detects the corresponding vehicle speed of the present vehicle and applies the detected vehicle speed to the controller 10, and the distance detecting unit 4 determines the distance from the obstacle in step 34. It is detected and applied to the control unit 10.

Accordingly, in step 36, the controller 10 reads the safety distance between the front and rear vehicles according to the vehicle speed from the data memory 8 based on the distance between the vehicle speed of the detected vehicle and the detected obstacle. If the distance according to the vehicle speed between the vehicles does not secure a safety distance, the positions of the electromagnetic fuel injection valve 18 and the throttle valve 15 are controlled to be the positions stored in the data memory 8. (Step 42)

Thus, as described above, the control section 10 controls fuel injection and simultaneously controls the generation of information on the safety means not secured corresponding to the vehicle speed with the obstacle on the display means 12 (step 38). In addition, the alarm sound generating means 14 generates an alarm sound of a light emitting alarm or an acoustic alarm.

As described above, according to the inter-vehicle distance adaptive fuel injection control apparatus of the present invention, the rear vehicle enters into the safety distance read from the data memory based on the vehicle speed of the corresponding vehicle and the vehicle ahead. When entering, it not only warns of the danger of not securing the safety distance, but also adopts an electronic fuel injection valve control device to suppress fuel injection, thereby automatically securing a safety distance to enable the driver's safer operation.

Claims (2)

In response to the inflow of the air by the opening values of the engine 20 and the throttle position valve 15 that provide driving power in the vehicle, a mixer mixed with the fuel is injected into the combustion chamber of the engine 20 under electronic control of the amount of fuel. In the engine fuel supply apparatus for a vehicle provided with an electronic fuel injection valve (18), A start switch 2 for turning on / off the vehicle, Distance detection unit 4 is installed in front of the vehicle to detect the distance to the obstacle ahead, Vehicle speed detection unit 6 for detecting the vehicle speed of the vehicle when the start-up by the start switch (2), A data memory 8 in which setting data of a fuel amount varying according to a distance between the vehicle speed of the vehicle and a distance between the front obstacles is stored; If the inter-vehicle distance detected from the distance detection unit 4 is less than or equal to the set distance and the vehicle speed detected by the vehicle speed detector 6 is equal to or greater than the set vehicle speed, the amount of fuel corresponding to the detection result is determined from the data memory 8. And a control unit 10 for controlling the fuel injection interval with respect to the electromagnetic fuel injection valve 18 while adjusting the opening value of the throttle position valve 15 by the setting data. Inter-vehicle distance adaptive fuel injection control device. The display means (12) according to claim 1, further comprising: display means (12) for displaying a lighting for warning a state in which fuel amount control is performed by the controller (10) as the inter-vehicle distance of less than the set distance and the traveling vehicle speed of more than the set vehicle speed are determined; And a vehicle-driven distance adaptive fuel injection control apparatus for a vehicle, characterized in that it further comprises an alarm sound generating means (14) for generating an alarm sound.