Untitled record

Full description

Background of the invention

The present invention relates to a vehicle brake management device capable of judging in real time any abnormal condition in the braking system of a vehicle, and specifically to a vehicle brake management device that makes it possible to verify a predetermined condition in a way that allows for monitoring

<p dir="rtl">5 In real time, any abnormal condition in the components of the braking system, and to prevent in advance any possibility of accidents that could occur as a result of a defect in the brake performance while driving the vehicle, so that it prompts issuing a warning and replacing the relevant components if an abnormal component is found.</p>

The brake pedal, which is used to reduce the vehicle's speed or stop it while driving the vehicle, is usually formed with a brake pedal prepared for use by the foot of the vehicle driver, a tool.

<p dir="rtl">10 Booster: It strengthens the receiving component and doubles the operating pedal effort of the brake pedal. A master cylinder is configured to create hydraulic pressure for the oil pressure through the booster. The wheel brake is equipped with a wheel cylinder configured to regulate a disk drum for the wheel with the help of the master cylinder. The brake pedal is prepared to operate based on the lever principle. The brake pedal is mounted around a point</p>

<p dir="rtl">15 the influence. If the driver applies the brakes, the force from the fixing point to the push rod can allow the master cylinder piston to be pushed through the booster, creating hydraulic pressure, and this hydraulic pressure can be transmitted steadily to each brake cylinder The wheel, through which the braking force is applied. A booster means a device capable of doubling the pressure exerted by the driver that is transmitted from the brake pedal to the master cylinder, i.e., a component</p>

<p dir="rtl">20 Booster capable of increasing the operational force of the brake. Large vehicles such as large trucks are usually equipped with a vacuum compressor, which uses indirect drive type</p>

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Hydro vac from the side of operating the booster. In the case of common passenger vehicles, direct drive with a vacuum maser is used, where the booster is driven using vacuum pressure generated by the engine's intake manifold.

A master cylinder refers to a component capable of converting pedal effort corresponding to the applied force

<p dir="rtl">5 With the foot on the brake pedal to hydraulic pressure, where the brake fluid and the piston are placed inside the master cylinder, the hydraulic pressure formed is transmitted to the wheel cylinder through the brake pipe, where the piston inside the wheel cylinder is pushed back by hydraulic pressure, which leads to the brake shoe being pushed brake shoe or brake lining against a drum or disc, creating a braking force. This master cylinder can be classified into a tandem type in which...</p>

<p dir="rtl">10 Arranging two master cylinders in series to solve the problem that occurs when the brake fails in the event of a malfunction, for example, brake fluid leakage in the hydraulic pressure system and improve safety; A gradual tandem type in which pistons of different diameters are used. If one circuit fails, the pressure rises in the natural cycle, which compensates for the loss of braking power. A central valve type (a tandem master cylinder with a central valve), as this type is used in a vehicle Equipped with a system</p>

<p dir="rtl">15 ABS (Anti-lock Brake System), and a central valve is installed at the piston that functions as a compensation port; a valve to check the residual pressure. This valve can be used in the case where a cup seal is used in the wheel cylinder of the drum brake. It can be connected to the brake pipe, master cylinder and brake pipe, or it can be installed inside the master cylinder.</p>

<p dir="rtl">20 In order to reduce speed or stop while driving the vehicle, the vehicle is equipped with a capable wheel brake</p>

On braking the front wheels and rear wheels, a booster, which is a boosting component to transfer operating pressure to the wheel brake by forming brake hydraulic pressure, and a master cylinder. If the driver steps on the brake pedal, a braking force can be generated by transmitting a small force to the wheel brake, which includes a booster device configured to amplify (double) the small force that was applied to the brake pedal.

<p dir="rtl">25 The brake pedal and a master cylinder, which is a hydraulic pressure component, is equipped to convert a large force into hydraulic pressure and work stably to transfer pressure (hydraulic pressure) regardless of the distance.</p>

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To the braking device, the hydraulic cylinder has a large area for the transmitted hydraulic pressure to obtain large force, and the brake lining has good friction force.

At the same time, since the vehicle's braking performance is directly related to safety, the manufacturer conducts an inspection of the components that make up the braking system.

<p dir="rtl">5 As an example of traditional braking performance testing technology, the Korean patent No</p>

10-0405569 for “A device for checking and evaluating braking performance.” According to its protection element 1, the device for checking and evaluating braking performance consists of a wheel speed sensor configured to detect whether the vehicle is moving, a brake pedal sensor configured to detect whether the brake pedal is operated; A pressure sensor configured to detect increased braking pressure through the brake pipe when braking force is generated by a vehicle being applied.

<p dir="rtl">10 Driving it, an electronic control method whereby a target braking pressure is determined based on the condition and type of test and evaluation of the brake performance that is entered, and the target time required to reach the target braking pressure is entered, and the time to maintain the braking pressure is entered to constantly maintain the target braking pressure until Braking is complete; An auxiliary brake hydraulic generating unit installed in connection with the brake pipe and configured to be operated selectively in response to direction from the control device</p>

<p dir="rtl">15 electronic and to create auxiliary hydraulic brake pressure; A control value of a first pressure to control an open path with the help of guidance from an electronic control device in order to form the head roller brake pressure by operating the brake pedal and the auxiliary hydraulic brake pressure formed by turning the auxiliary hydraulic brake pressure generation unit to supply it selectively towards the main body of the brake based on a test step. braking performance evaluation; A set of second pressure control valves is mounted at the connected brake pipe</p>

<p dir="rtl">20 At the main body of the front wheel brake and at the brake tube connected to the main body of the rear wheel brake and configured to open and close selectively in response to a control command from an electronic control device based on a step of testing and evaluating the braking performance.</p>

The traditional technique of braking performance testing and evaluation device suffers from a problem in the way in which a vehicle with good braking performance is developed and braking performance data is calculated and collected at the stage.

<p dir="rtl">25 vehicle development; But it is not possible to verify any abnormal condition in the various components that make up the braking system. More specifically, a device cannot be used to test and evaluate braking performance</p>

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The traditional method is used to verify the performance status of the vehicle's brakes after installing them in common commercial vehicles.

Furthermore, as another conventional technology, Korean Patent No. 034804010 discloses an “apparatus for testing the performance of a brake booster.” In accordance with protection element 1, the brake booster performance test device 5 is formed from a shelf member; Interlock unit problem from

An arm that engages with a bracket that is hinged to a rotatably fixed arm on the other side to move after being hinged to a brake booster drive bar on one side, where the engagement unit allows the arm and booster to be mounted on the rack member at a distance predefined between them; A vacuum unit is configured to convert the inside of the booster to a negative pressure state of 10; The confirmation unit is configured to check the braking condition of the wheel based on the operation of the booster.

The performance tester configured in this way for the brake booster is designed to verify the performance of the brake booster before it is installed in the vehicle, thus preventing the use of a defective product, but it is impossible to judge that the brake booster has any performance problems after Installed in 15 vehicles that are currently in operation.

Since most of the conventional devices for testing the braking performance of a vehicle are used to evaluate the performance of each component that makes up the braking system at the vehicle manufacturing stage or to judge any defect before the component in question is installed in the vehicle, it is impossible to verify any abnormal condition in terms of performance. Braking for any newly issued vehicle. Therefore, there is an urgent need to develop a new device

<p dir="rtl">20 Able to solve the problems mentioned above. More specifically, vehicle performance may deteriorate or vehicle damage may occur as each vehicle component ages as a result of driving the vehicle. Information about, for example, engine revolutions, engine temperature, fuel volume, battery condition, cooling water temperature, speedometer, etc., which relate to the driving performance of the vehicle is provided to the vehicle driver in real time; However, information regarding braking performance is limited</p>

<p dir="rtl">25 Stopping and slowing down is not provided. For this reason, if any problem occurs with the braking system while the vehicle is being driven, it can lead to serious problems. Moreover, if verified</p>

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Safety checks are conducted periodically for all vehicles. Only defects related to the brake light and the amount of brake fluid are checked. Brake performance is not being checked.

In traditional technology, since vehicles are driven without specifically checking for any abnormal condition in the braking system, the safety of the driver is not considered guaranteed, leading to serious problems5.

The braking power of the newer vehicle is good. However, with the passage of time, the braking force gradually decreases. Since the engine's running power is checked periodically from the vehicle's release until the end of its service life, it is possible to maintain consistent engine performance. More specifically, the driving performance of a vehicle can be maintained through regular vehicle inspection and maintenance; However, braking performance is not managed properly due to the lack of inspection standards, so appropriate standards are needed.

General description of the inventor

According to the above, the present invention was prepared in an attempt to solve the problems of traditional technology, as the present invention provides a device for managing a vehicle’s brake capable of preventing any danger or accident resulting from a defect.

<p dir="rtl">15 In the braking performance in advance so that any abnormal condition in the braking system of the vehicle currently in operation is verified in real time after it has been released.</p>

In addition, the present invention provides a vehicle brake management device capable of preventing any risk of a traffic accident by forcibly shutting down the vehicle upon restarting the vehicle if the braking performance is below a predetermined level and improving reliability with respect to the vehicle's braking performance. 20 Brake of the vehicle.

A method for evaluating a vehicle brake management device according to one representative embodiment of the present invention may include a brake pedal configured to receive applied effort to the pedal, a boosting device being a boosting component capable of multiplying the applied effort to the pedal jointly with the applied effort to the brake pedal, a cylinder A master connected to the booster and configured to set operating pressure through 25 oil pressure, and a wheel cylinder connected to the master cylinder and configured to adjust a disc cylinder equipped with

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with a disk pad for the wheel, thereby managing the braking of the vehicle, and a vehicle brake management device is provided in accordance with one preferred embodiment of the present invention which may include a pedal voltage sensor mounted at one side of the brake pedal and configured to detect The effort applied to the pedal; 5 A vacuum pressure sensor configured to detect the vacuum pressure inside the booster; A pressure sensor is configured to detect pressure in the master cylinder; A pad sensor is configured to detect the level of wear abrasion in the disc lining; A control means connected to the voltage sensor applied to the pedal, the vacuum pressure sensor, the pressure sensor and the liner sensor, and is prepared to receive values detected by it and determine any abnormal condition by comparing the detected values with previously entered reference control values and outputting its result 10 in the form of a control signal.

As a preferable feature of the present invention, the control means is configured to direct, to the vehicle driver in real time, at least one, two or more pieces of information from among the value of the processing result, a value specified by the voltage sensor applied to the pedal, a value specified by the vacuum pressure sensor. sensor vacuum, a specific value of the sensor pressure, and a specific value of 15 the sensor pad and is connected to a displaying unit consisting of either or both a display device capable of displaying information on the screen and speakers capable of outputting information in a form My voice.

According to another preferred feature of the present invention, the control means includes a connector that connects a component capable of supplying, to an external measuring device, at least one, two or more

<p dir="rtl">20 The value of the processing result, the value determined by the pedal voltage probe, the value determined by the vacuum pressure probe, the value determined by the pressure probe, and the value determined by the liner probe.</p>

According to another aspect of the present invention, the control means includes one or more input units configured to receive a specified value from each of a pedal voltage sensor, a vacuum pressure sensor, a pressure sensor, and a liner sensor; A calculation unit configured to compare the specified value entered by a unit

<p dir="rtl">25 Input with a pre-entered reference setting value and manipulation of values; A formatted output unit etc. outputs information processed by the arithmetic unit, a memory unit connected to the input unit, the arithmetic unit and the arithmetic unit.</p>

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Output and configured to receive information from each of them and store the information that is received.

According to another aspect of the present invention, the control means includes an engine start control device capable of selectively controlling the vehicle's engine not to start based on the value resulting from the processing.

The brake management device for the vehicle according to the present invention is capable of preventing the risk of accidents occurring by determining the cause resulting from a defect in the brakes and performing repair or replacement of the defective component after any abnormal condition in the braking performance of the vehicle that is currently in operation. Detected in real time, allowing the vehicle driver or repair worker to easily verify it.

Moreover, the present invention is able to provide the advantages that if any abnormal condition occurs in the braking system during operation, a pre-determined alert is issued to the vehicle driver to check the abnormal condition, and if the engine is restarted after terminating operation The engine is interrupted to make the vehicle unavailable, which greatly reduces the risk of an accident occurring and can thus improve the customer's vehicle reliability.

The present invention can be understood more easily by referring to the following detailed description15 and the accompanying drawings. The terms or expressions used in the entire specification and the elements of protection do not have to be interpreted within their general meaning or their meanings mentioned in dictionaries, but rather they must be interpreted within the meanings and principles that are compatible with the technical ideas of the present invention and based on which the inventor can determine the principles of terminology in an appropriate way to describe Sister, take care of him in the best way.

Brief explanation of the drawings

<p dir="rtl">20 Figure 1: represents a schematic view illustrating the configuration of a vehicle brake management device according to the invention</p>

Present.

Figure 2: A block diagram describing a vehicle brake management device configuration according to the present invention.

Figure 3: A block diagram describing a vehicle brake control configuration according to the present invention

Key to reference numbers for major components in drawings

<p dir="rtl">25 3: Brake pedal; 5: Booster 7: Master cylinder</p>

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<p dir="rtl">9: brake lining; 10: Pedal voltage sensor; 20: Vacuum pressure sensor</p>

<p dir="rtl">30: pressure sensor; 40: lining probe; 50: Control method</p>

<p dir="rtl">51: input unit; 52: unit of account; 53: Exit unit</p>

54: Memory module; 60: Display unit.

5 Detailed description:

The vehicle brake management device according to the present invention will be described by reference to the accompanying drawings. It should be noted that identical components or parts in the drawings are indicated by the same reference numbers. In the context of describing the present invention, the detailed description relating to its function or configuration will be omitted to avoid lack of clarity in the subject matter of the present invention.

<p dir="rtl">10 Figure 1 represents a schematic view showing the complete configuration of a vehicle's brake management device according to</p>

For the current sister. Figure 1 shows a brake pedal 3 forming a braking system for a vehicle, boosting performance 3 which doubles the pedal effort in combination with the brake pedal 3, a master cylinder 7 connected to a booster 5 and forming operating pressure by pressurized oil, a disc pedal 9 of a wheel cylinder connected to the master cylinder 7 and under friction -It comes into contact with the wheel by operating pressure. It may include

<p dir="rtl">15 The vehicle's brake management device is a pedal effort sensor 10 configured to determine in real time the status of each of the components that make up the brake system, a vacuum pressure sensor 20, a pressure sensor 30, a lining sensor 40, a control device 50 configured to receive the signals detected by the above-mentioned components. It compares it with a reference setting value and outputs a control signal via a terminal, etc., and a display unit 60 is connected to the output terminal of the control device 50, receives a control signal and displays a value.</p>

<p dir="rtl">20 Processing result or connector 70 is an output port that can be connected to an external device.</p>

Figure 2 represents a block diagram describing a configuration of a vehicle brake management device according to the present invention. Referring to Figure 2, the vehicle brake management device may include a probe unit consisting of a pedal voltage sensor 10 configured to detect a brake pedal voltage signal 3, a vacuum pressure sensor 20 configured to detect the booster vacuum pressure 5, a pressure sensor 30

<p dir="rtl">25 configured to detect operating pressure of the master cylinder 7, and the liner sensor 40 is configured to detect</p>

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Brake lining wear 9; A control device 50 is configured to receive signals detected by the sensor unit and process its control signals, a display unit 60 is connected to an output terminal of the control device 50 and configured to display output values in real time, and a connector 70 is a connection port for communication with a device. External measurement.

5 Figure 3 represents a framework diagram for describing a control device configuration according to the present invention.

Referring to Figure 3, the control device 50 may include an output unit 50 configured to receive information detected by the pedal voltage sensor 10; Vacuum pressure sensor 20, pressure sensor 30 and liner sensor 40, calculation unit 52 configured to compare the detected value entered from the input unit 51 with a previously entered reference setting value, output unit 53 configured 10 etc. to output information processed by the calculation unit 52 , and a 54 memory unit prepared for storage

Information from the input unit 51, the calculation unit 52 and the output unit 53.

The configuration of the vehicle brake management device according to the present invention will be described by reference to the accompanying drawings.

In the present invention, any abnormal condition is detected in real time in the brake pedal 15, the booster 5, the master cylinder 7 and the disc lining 9 which constitute the braking system of the vehicle, and the detected value is compared with the reference adjustment value, and is provided with this How to provide the vehicle driver with information about braking performance. As main components, the present invention may include a pedal effort sensor 10 configured to detect the pedal effort of the brake pedal 3, a vacuum pressure sensor 20 configured to detect the vacuum pressure of the booster 5, a pressure sensor 30 configured to detect the value of the operating pressure of the master cylinder 7, and a pressure sensor 30 configured to detect the value of the operating pressure of the master cylinder 7. of lining 40 configured to detect wear in brake lining 9; A control device 50 is configured to receive signals detected by the above-mentioned sensor components and process values, and a display unit 60 is configured to receive result information processed by the control device 50 And notify it to the vehicle driver, and connector 70 is configured, etc. Receive the result information after connecting it to an external measuring device.

25 The pedal voltage sensor 10 is a detection component mounted at one side of a pedal

Brake 3 and configured to detect pedal effort. The pedal voltage sensor 10 is able to detect

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The operating force is when the vehicle driver steps on the brake pedal 3 and transmits the detected operating force to the control device 50 connected to an output terminal. The pedal effort sensor 10 is a component capable of detecting the force when the vehicle driver steps on the brake pedal, i.e., the amount of pedal effort, and is mounted at one side of the brake pedal 3, thus 5 detecting the effort applied to the pedal. Since this pedal voltage sensor 10 can be used

By known technology, its description will be deleted.

The vacuum pressure sensor 20 is a detection component capable of detecting vacuum pressure in the booster 5. The vacuum pressure sensor 20 is capable of measuring negative pressure applied to the booster 5 which is a boosting component to enhance or double the pedal effort

10 When measuring the vehicle driver by stepping on the brake pedal 3, he is able to send the revealed value to the control device 50 connected to an output terminal unit. The vacuum pressure sensor 20 is installed inside the booster 5 and is capable of detecting negative pressure in the form of an electronic signal. Various vacuum pressure sensors can be used for the vacuum pressure sensor mentioned above as long as they are equipped with a feature to measure the vacuum pressure inside the booster 5, so the detailed description will be omitted

15 With it.

The pressure sensor 30 is a detection component mounted inside the master cylinder 7 or mounted at the side of the outlet terminal of the master cylinder 7, thus detecting the pressure. The detected measurement is fed to the control unit 50 connected to the output terminal. Since the pressure sensor 30 may be used by known technology, the description of its technology will be omitted.

20 The liner sensor 40 is a detection component capable of measuring the level of wear in the liner

Disc 9, which can be mounted on one side of the disc liner 9, thus detecting the level of wear and supplying the detected measurement value to the control device 50 electrically connected to the output terminal. This lining sensor 40 is called a brake lining wear sensor, and since it may be used by known technology, the description of its technology will be omitted.

25 The control device 50 is connected to the pedal voltage sensor 10, vacuum pressure sensor 20,

The pressure sensor 30 and the liner sensor 40 are detection components and can be detected by a microcomputer

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A microcomputer is used as a control component capable of receiving all the detected information, comparing it with the previously entered reference control value, judging any abnormal condition and outputting its results in the form of a control signal. This control device 50 may include an input unit 51 electrically connected to the detection components and configured to receive the detected value, a calculation unit 52

<p dir="rtl">5 Capable of judging any abnormal condition by comparing the detected value entered through the input unit 51 with previously entered reference control values, an output unit 53 capable of supplying the result information processed by the calculation unit 52 to a display unit 60 or a connector 70, and a Memory 54 is electrically connected to the input unit 51, the calculation unit 52 and the output unit 53 and is capable of receiving and storing information.</p>

<p dir="rtl">10 Preferably, however, the control means 50 additionally includes a means of controlling operation</p>

The actuator is able to control that the vehicle's engine does not start selectively based on the appropriate result value. This operating control may be provided separately. Alternatively, an Electronic Control Unit can be used instead.

The display unit 60 is a component connected to the output unit 53 of the control device 50 and is capable of

<p dir="rtl">15 Receives the processed result information and is able to provide it in real time to the vehicle driver. The information provided to the vehicle driver may be result information processed after being connected to an output unit 53 of the control device 50. More specifically, the above-mentioned information may be any one, two or more pieces of information of the value resulting from the processing of the control device, specific values from a voltage sensor. The pedal, a specific value of the vacuum pressure sensor, and a specific apical value of the liner sensor. And it can</p>

<p dir="rtl">20 This display unit 60 includes a means formed by any one or more display screens capable of displaying result information on the screen in order to allow the driver of the vehicle to visually and easily confirm brake performance or a speaker capable of being output audibly so that the driver of the vehicle is aware of the presence of any Abnormal condition in braking performance. Preferably, a pre-defined display unit is used, capable of displaying information visually while providing audio output.</p>

<p dir="rtl">25 The connector 70 is a connection port component connected to the output unit 53 of a device</p>

The control 50 is capable of providing, to an external measuring device or measuring device, the information that has been achieved

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Processed, i.e., at least one, two or more of the processed result values of the control device, a specified value of the brake pedal probe, a specified value of the vacuum pressure sensor, a specified value of the pressure sensor, and a specified value of the liner probe. The connector 70 can be made from any of the various known connectors, but it is preferable that it be made from a connector installed in the vehicle.

5 OBD (On-Board Diagnosis) is mainly supplied in the vehicle.

The operation of a vehicle brake management device will be described in accordance with the present invention.

If the engine is activated to drive the vehicle, and the components begin to work, which is formed by the pedal voltage sensor 10 installed at one side of the brake pedal 3, which is prepared to receive the effort of stepping on the pedal by the vehicle driver based on the electrical power supply, the vacuum pressure sensor 20 10 installed inside a device booster 5 to form negative pressure in conjunction with the brake pedal 3 and configured to measure negative pressure, a pressure sensor 30 connected to the booster 5 and mounted inside the master cylinder 7 which forms operating pressure and thus measures the pressure, and a liner sensor 40 mounted at the liner The disc 9 rubs against the wheel based on the operating pressure applied by the master cylinder 7, and in this way measures the level of wear, and each specific value is thus supplied to the control device 50.

15 The control device includes input values, for example, the pedal voltage value of a pedal

Brake 3, Boost drive reference negative value 5, Master cylinder operating pressure reference

<p dir="rtl">7, and a reference wear value for the disc liner 9, and be able to compare the reference adjustment values</p>

Pre-entered with the detected values of each detected component, thus judging any abnormal condition. More specifically, if the measured value of each component is normal or...

<p dir="rtl">20 Within the permissible error range with its corresponding pre-input adjustment value, the control device 50 may determine that the braking system is normal, and if this value is outside the error range or normal range, the control device may enable the display, on the display unit 60, of a malfunction. The performance of the corresponding braking component (brake pedal, booster, master cylinder or brake pad) in order to allow the vehicle driver to recognize this fault.</p>

<p dir="rtl">25 It should be understood that the invention is not limited to the embodiments disclosed, and</p>

Otherwise, it is intended to include various amendments and changes included within the spirit and scope

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The attached protection elements. Therefore, all modifications and changes that fall within the limits of protection, or their equivalents that fall within its limits, are included in the attached protection elements.

Elements

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