KR20110032271A - Apparatus for preventing vehicle's slipping and method thereof - Google Patents

Abstract

PURPOSE: An anti-slip control apparatus of an automobile is provided to control RPM of an actuator through the speed information of the automobile. CONSTITUTION: An anti-slip control apparatus comprises: a slope sensor(110) for measuring slope degree of an automobile; a speed sensor(120) for sensing speed at the moment of separation of foot from a brake; a controller(130) for generating control signal through slope information and speed information of the sensor; and an actuator control device(140) for controlling actuator RPM(revolutions per minute).

Description

Apparatus for preventing vehicle's slipping and method

The present invention relates to a non-slip control device and method of the vehicle, and more particularly to a non-slip control device and method of the vehicle to prevent the sliding back when driving in a slope.

In general, an automobile is provided with an internal combustion engine such as a gasoline engine or a diesel engine as a power generating device for driving a vehicle, and the power (torque) of the power generated in the internal combustion engine is adjusted as an accelerator pedal.

In addition, the vehicle has a clutch that transmits or cuts engine power to the drive wheels and a transmission that increases or decreases the driving force according to the driving state of the vehicle as a power transmission device, and a brake device that slows or stops the speed of the driving vehicle. Is installed.

Among the above devices, the pedals for operating the clutch and the pedals for controlling the brake are respectively installed as pedals at the bottom of the driver's seat together with the accelerator pedals, and the pedals are operated by the foot. It is necessary to operate the shift lever, the accelerator pedal and brake pedal with the right foot, and the clutch with the left foot, which is the case with a car with a manual transmission, and with a hand with an automatic transmission. In addition to the automatic transmission lever, there are only right-handed accelerator pedals and brake pedals, but no clutch pedals.

However, in the case of a vehicle equipped with a manual transmission, if you are going up the ramp and want to stop because of a signal or traffic jam or an accident, you must first step on the clutch completely with your left foot so that the engine power is not transmitted to the wheels. You must step on the pedal with your right foot to keep the engine from stopping.

In this case, the brake device of a car is generally described as an example of a passenger car, and the front wheel uses a disc brake that grips both sides of the wheel disk with a pad, and the brake wheel operated by the wheel cylinder of the back plate opens on the rear wheel. The drum brake is used to brake when it is in close contact with the brake pad. When the brake pedal is released, the pad of the front wheel falls off the wheel disk, and the brake shoe of the rear wheel is configured to release the braking force as it falls off the inner peripheral surface of the drum.

Therefore, in the conventional brake system, the braking force of the brake is immediately released when the foot is released from the pedal, and when the vehicle is stopped on the slope and the brake pedal is released, the automobile is pushed back by its own weight (Fig. 1). Reference).

Therefore, if you want to start more smoothly, release the clutch pedal on your left foot slightly to create a half-clutch state, and then move the right foot on the brake pedal quickly to the accelerator pedal, and then release the clutch pedal on your left foot completely before the power gear is released. The car will move forward while being bitten, but if you press the accelerator pedal too quickly and release the clutch pedal, it will turn off the engine.

Therefore, smooth operation of each of these pedals requires quite skilled skills, and for the novice driver, the most difficult part is when it is time to stop and then start again. If you keep pushing back, you may be very embarrassed by the novice driver because you are concerned about the collision with the car behind you, and it also increases the congestion as you hinder the flow of the car.

In particular, when the start of the slope lasts for a long time due to the congestion of the car, novice drivers as well as drivers of old cars and overloaded cars are severely stressed with the fatigue of foot and leg.

And because of the above problems, many drivers currently prefer an automatic transmission car that can start smoothly without stopping the start of the car on the slope, but when the automatic transmission is equipped with a manual transmission in the future Compared to a car, the price of a car is high, but the fuel consumption is about 20% when running after leaving the factory.

The present invention is to solve the above conventional problems,

By controlling the RPM of the actuator to prevent slipping during climbing, it helps the driver to respond more quickly and overcomes the phenomenon of pushing back even if the brake is caught in a severe climbing situation and prevents accidents in advance. The purpose is to provide a method.

Anti-skid control device for a vehicle of the present invention, the inclination detection unit for measuring the inclination of the vehicle; A speed detecting unit detecting a speed at which the driver's foot is released from the brake when the vehicle is driven; A controller configured to receive the inclination information of the vehicle detected by the inclination detection unit and the speed information when the foot is released from the brake detected by the speed detection unit and generate a control signal accordingly; And an actuator adjusting device for adjusting the RPM of the actuator by the control signal generated by the controller.

In particular, the actuator control device, characterized in that for controlling the RPM by using the mechanism of the motor in the actuator portion of the vehicle for controlling the amount of fuel and air.

In addition, the controller is characterized in that it has data on the control values of the actuator adjustment device for the back angle of the vehicle.

In addition, the inclination detection unit, a plurality of floats installed in the fuel tank is moved up and down in accordance with the inclination of the vehicle and the voltage variable device for varying the voltage difference according to the fluctuation of the respective floats and outputs Characterized in that consists of.

In addition, the inclination detection unit, the fuel level sensor for detecting the fuel level,

The fuel level sensor may calculate the change amount of the current fuel data and the fuel level, extract the degree of inclination from the values, and output corresponding data.

The change amount is a residual amount of fuel obtained by subtracting fuel consumption from the injection amount, and is recognized as a plane when the residual amount and the sensed fuel data value are the same, and when the residual amount is less than the sensed fuel data value, the slope of the uphill slope is increased. If it is determined that the road, and the remaining amount is larger than the detected fuel data value, characterized in that it is determined as the downhill road.

On the other hand, slip control method of the vehicle of the present invention, the step of measuring the inclination of the vehicle; Detecting the speed at which the driver's foot is released from the brake when the vehicle is driven; Generating control signals according to the inclination information of the vehicle and the speed information at the moment of releasing the brake; And adjusting the RPM of the actuator by the control signal.

In particular, the step of measuring the inclination of the vehicle, sensing the fuel level and storing the sensed data; Calculating an amount of change in the fuel level; Comparing the sensed data with the change amount, and calculating the degree of inclination and using the corresponding data if the comparison result is a slope; And if it is not the ramp, it characterized in that it comprises the step of repeating the process from the step of storing the detected data by detecting the fuel level by re-measuring the fuel level data.

In addition, the change amount is the remaining amount of fuel minus the fuel consumption from the injection amount, and comparing the detected data with the change amount, if the comparison result is a ramp, the step of calculating the degree of inclination and using the data is the residual amount and the detected If the fuel data values are the same as each other, it is recognized as a plane, and if the remaining amount is less than the detected fuel data value, it is determined as an uphill slope road; It is done.

An anti-slip control apparatus and method for a vehicle according to the present invention have the following effects.

First, by adjusting the RPM of the actuator through the vehicle's inclination and speed information, it prevents slipping during climbing, which helps the driver to drive faster and overcomes the phenomenon of pushing back even when holding the brake in the judgment situation. The risk of the same accident can be significantly reduced.

Second, many drivers can operate a car smoothly without being stressed physically or mentally even if the departure from the slope lasts for a long time due to the congestion of the car.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Here, the repeated description, well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention, and detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

FIG. 2 is a block diagram schematically showing an apparatus for preventing slippage of a vehicle according to the present invention, and FIG. 3 is a block diagram schematically illustrating a configuration of a speed sensor of FIG. 2.

As shown in FIG. 1, an anti-skid control apparatus for a vehicle according to the present invention includes an inclination detector 110 that measures an inclination of the vehicle forward and backward when the vehicle is parked or stopped, and a brake during driving of the vehicle. Speed detection unit 120 for detecting the speed of the driver's foot is released, the front and rear inclination of the vehicle detected by the inclination detection unit 110 and the foot of the brake detected by the speed detection unit 120 Determining the speed of the moment of release the controller 130 for generating a control signal according to the control, and the control signal generated by the controller 130 to adjust the RPM (Revolution Per Minute) of the actuator (actuator) 150 It is configured to include an actuator control device 140.

Here, the actuator control device 140 adjusts the RPM using a mechanism such as a motor to the actuator 150 portion of the vehicle for controlling the amount of fuel and air.

In addition, the inclination detection unit 110 measures the inclination of the vehicle as the inclination sensor, and the speed detection unit 120 as the acceleration sensor measures the speed of the moment when the driver releases the brake information.

The inclination detecting unit 110 is electrically connected to the controller 130 and is mounted on a predetermined portion of the car to detect the inclination of the car when the car is parked or driven on an inclined road, and is in a normal state. Generate another signal when in an inclined state.

In addition, the inclination detection unit 110 may detect the inclination angle of the vehicle and supply the inclination angle to the controller 130. Therefore, the controller 130 may generate a control signal differently according to the inclination angle of the vehicle.

The inclination detection unit 110 is installed inside a fuel tank (not shown) and is moved up and down according to the inclination of the vehicle to change the voltage difference according to the plurality of floats for detecting the inclination of the vehicle and the movement of each float. It consists of a voltage variable device that outputs the

That is, the inclination detecting unit 110 determines the inclination path and extracts the inclination data. At this time, the inclination detecting unit 110 further includes a fuel level sensor for detecting a fuel level, the fuel level sensor calculates the change amount of the current fuel data and the fuel level, extracts the degree of inclination from the values and outputs the corresponding data. Done. In this case, the amount of change is the remaining amount of fuel minus the fuel consumption. If the remaining amount and the detected fuel data value are the same, the change amount is recognized as a flat surface. If the remaining amount is smaller than the detected fuel data value, the change amount is determined as the inclined road uphill. If more than the detected fuel data value, it is determined as a downhill slope road.

In the anti-slip control device for the vehicle according to the present invention, the inclination detection unit 110 for detecting the inclination of the vehicle measures the inclination inclination inclination value of the vehicle on the basis of a horizontal plane in the direction of gravity.

On the other hand, in the case of a car is displayed through a tachometer, the car generally refers to the engine tachometer installed in the instrument cluster. On this tachometer the numbers 0 through 9 are marked. Here, 1 means 1,000 rpm and 2 means 2,000 rpm.

Here, 1,000 rpm means that the crankshaft, the main shaft of the engine, rotates 1,000 laps per minute. In other words, the engine runs 1,000 revolutions per minute and 1,500 revolutions of 1,500 rpm.

Therefore, increasing the RPM of the car means that the engine speed increases, and that means that the speed of the car also affects the output and speed of the car.

In other words, if the torque is constant, the higher the RPM, the faster the speed. However, RPM and car speed are not necessarily proportional. Because the power (horsepower) of the car is multiplied by the RPM of the engine's torque, it is also affected by torque.

The controller 130 receives the inclination information of the vehicle detected by the inclination detection unit 110 and the speed information at the moment of releasing the foot detected by the speed detection unit 120.

The controller 130 receives power from a battery (not shown) that is mounted at a predetermined position of a vehicle and supplies power to the actuator 140 according to the information of the inclination detector 110 and the speed detector 120. To control the RPM.

That is, the controller 130 increases the RPM of the actuator 140 according to the slope of the climbing road to prevent the vehicle from being pushed back while facilitating the starting of the climbing.

When the vehicle stops, the controller 130 determines whether the vehicle has stopped at an inclination through the inclination detecting unit 110, and if it is determined that the vehicle has stopped at the inclination, the controller 130 is provided to the four wheels so that the vehicle is not pushed even when the driver releases the foot from the brake pedal. The control to maintain the current braking pressure is performed.

On the other hand, when the vehicle starts after stopping, the braking pressure provided to the four wheels is reduced based on whether the actuator 140 is pressed down and the engine speed, so that the vehicle can start without being pushed even when the driver releases the brake pedal. .

In response to the above information, the controller 130 generates an output signal to the actuator adjusting device 140 in the controller 130 at the moment when the driver releases the brake from the vehicle during climbing and the speed information of the speed detecting unit 120. Generates a control signal that is neither pushed nor departed.

That is, the anti-skid control apparatus for a vehicle according to the present invention prevents the vehicle from slipping by the force of the actuator 150, not by the brake force at the moment when the driver releases the brake from the automobile.

The controller 130 has data of the actuator adjusting device 140 suitable for the climbing angle of the vehicle, and the controller 130 compensates for the value of the speed detecting unit 120 to "0" based on the data. And design the controller 130 to operate according to the current state.

On the other hand, the slip control device of the vehicle according to the present invention can be applied not only to the auto automobile but also to a vehicle with a manual mission, when it rises above the existing RPM when adjusting the RPM of the actuator 150 to prevent a phenomenon such as sudden start-up. The controller 130 is responsible for manually changing the response of the driver.

In addition, the anti-slip control device of the vehicle according to the present invention may be installed a gyro sensor (not shown) for detecting the rotational angle of the current vehicle is far from the center, the gyro sensor is a rotor that rotates at high speed Uses the property to keep the rotation axis constant and detects when the car is out of the center of the direction of travel and displays it as an angle (θ).

In addition, the anti-slip control device of the vehicle according to the present invention may be provided with a vehicle speed sensor (not shown) that detects whether the vehicle is currently driving, if the rotation occurs in the state that the vehicle is not driving, the engine brake it Because you can't brake.

In addition, the anti-skid control apparatus for a vehicle according to the present invention may be provided with a steering sensor (not shown) for detecting whether the steering wheel is currently rotated at the center of the steering angle (ψ).

As illustrated in FIG. 2, the speed detector 120 measures a brake pedal detector 123 for detecting relaxation of the brake pedal, a speed sensor 121 for detecting a vehicle speed, and an engine speed. It is configured to include a crank angle sensor 122 for.

When the speed detection unit 120 configured as described above starts the operation of the vehicle, the brake pedal detection unit 123 detects the relaxation state of the brake pedal, the speed sensor 121 detects the speed of the vehicle, crank Each sensor 122 measures the engine speed and outputs it to the controller 130.

The controller 130 receives the speed of the vehicle and the engine speed, and calculates a change in time until the vehicle reaches a constant speed.

Thereafter, the controller 130 detects the rolling of the vehicle according to the change of time from the time when the brake pedal is released and the inclination of the vehicle measured by the inclination detecting unit 110 and controls to control the RPM of the actuator 140. Output the signal.

4 is a flowchart illustrating a method for controlling slip prevention of a vehicle according to the present invention.

In the anti-skid control method of the vehicle according to the present invention, as shown in FIG. 3, when the vehicle is parked or stopped, the inclination detecting unit 110 detects the inclination of the vehicle in the forward and rearward directions to the controller 130. Supply to (S110).

Subsequently, at the initial stage after parking or stopping, the speed detecting unit 120 detects the speed at the moment when the driver releases the foot from the brake and supplies it to the controller 130 (S120).

Subsequently, the controller 130 that receives the inclination information of the vehicle detected by the inclination detecting unit 110 and the speed information at the moment of releasing the foot through the speed detecting unit 120 is the inclination detecting unit 110. Determining the front and rear inclination of the vehicle detected by the speed and the moment of releasing the foot from the brake detected by the speed detecting unit 120 generates a control signal according to (S130).

Here, when the controller 130 determines that the vehicle is inclined in the forward direction, a control signal for adjusting the RPM of the actuator 150 such as a relay is generated, and as a result of the determination, the moment the driver releases the brake from the vehicle. When the speed information is received, the control signal does not start even if the millimeter is generated.

In response to the control signal generated through the controller 130, the actuator adjusting device 140 adjusts the RPM of the actuator 150 (S140).

As described above, in the present invention, the anti-skid control method of the vehicle prevents the vehicle from slipping by adjusting the actuator force, that is, RPM, not the brake force at the moment when the driver releases the brake.

5 is a diagram illustrating a process of detecting a ramp using a fuel level sensor.

As shown in FIG. 4, the determination of the ramp detects the fuel level and stores the detected data (step 403). The amount of change in fuel level is calculated (step 406). If the detected data is compared with the amount of change, and the comparison result is the ramp (YES in step 409), the degree of inclination is calculated (step 412) and the corresponding data is used (step 418). If it is not the ramp (NO in step 409), the fuel level data is re-measured (step 412) and the process from step 403 is repeated.

At this time, the change amount is the remaining amount of fuel minus the fuel consumption, and the determination of the degree of inclination is regarded as a plane when the remaining amount and the detected fuel data value are equal to each other. If the remaining amount is greater than the detected fuel data value, it is determined as a downhill slope road.

Some steps of the invention may be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media may include ROM, RAM, CD-ROM, CD-RW, magnetic tape, floppy disk, HDD, optical disk, magneto-optical storage, and the like. , Transmission over the Internet). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is an exemplary view for explaining a phenomenon in which a vehicle is pushed backward in a ramp.

2 is a block diagram schematically showing an anti-skid control apparatus for a vehicle according to the present invention.

3 is a configuration diagram schematically illustrating a configuration of the speed detector of FIG. 2.

4 is a flowchart illustrating a method for controlling slip prevention of a vehicle according to the present invention.

5 is a diagram illustrating a process of detecting a ramp using a fuel level sensor.

<Explanation of symbols for the main parts of the drawings>

110: tilt detection unit 120: speed detection unit

130: controller 140: actuator

Claims (9)

An inclination detecting unit measuring an inclination of the vehicle; A speed detecting unit detecting a speed at which the driver's foot is released from the brake when the vehicle is driven; A controller configured to receive the inclination information of the vehicle detected by the inclination detection unit and the speed information when the foot is released from the brake detected by the speed detection unit and generate a control signal accordingly; And And an actuator adjusting device for adjusting an RPM of the actuator by a control signal generated by the controller. The method according to claim 1, The actuator control device, An anti-skid control device for a vehicle, characterized in that the RPM is adjusted by using a mechanism of the motor in the actuator portion of the vehicle for controlling the amount of fuel and air. The method according to claim 1, The controller comprising: An anti-skid control device for a vehicle, characterized in that it has data on the control values of the actuator adjustment device for the back angle of the vehicle. The method according to claim 1, The tilt detection unit, And a plurality of floats installed inside the fuel tank and moving up and down according to the inclination of the vehicle to detect the inclination of the vehicle and a voltage variable device for varying and outputting a voltage difference according to the movement of each float. Anti-skid control device of the car. The method according to claim 1, The tilt detection unit, It has a fuel level sensor for detecting the fuel level, The fuel level sensor calculates a change amount of the current fuel data and the fuel level, extracts the degree of inclination from the values, and outputs the corresponding data. The method according to claim 5, The amount of change is a residual amount of fuel minus fuel consumption, and is recognized as a plane when the residual amount and the sensed fuel data value are equal to each other, and is determined as an uphill slope when the residual amount is less than the sensed fuel data value. And determining that the residual amount is greater than the detected fuel data value as a downhill inclined road. Measuring the inclination of the vehicle; Detecting the speed at which the driver's foot is released from the brake when the vehicle is driven; Generating control signals according to the inclination information of the vehicle and the speed information at the moment of releasing the brake; And And controlling the RPM of the actuator by the control signal. The method of claim 7, Measuring the inclination of the vehicle, Sensing the fuel level and storing the sensed data; Calculating an amount of change in the fuel level; Comparing the sensed data with the change amount, and calculating the degree of inclination and using the corresponding data if the comparison result is a slope; And If it is not the ramp, the step of re-measuring the fuel level data, the step of detecting the fuel level and repeating the process from the step of storing the sensed data, characterized in that it comprises a step. The method of claim 8. The change amount is the remaining amount of fuel minus the fuel consumption amount, Comparing the detected data with the change amount, and if the comparison result is a ramp, calculating the degree of inclination and using the corresponding data may be recognized as a plane when the remaining amount and the detected fuel data value are the same, and the remaining amount is The method of claim 1, wherein when the amount is less than the detected fuel data value, it is determined as an incline road of uphill, and when the remaining amount is greater than the sensed fuel data value, it is determined as an incline road of downhill.

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