KR20210034255A - Apparatus and method for controlling electric device in vehicle - Google Patents

Abstract

The present invention relates to a vehicle electronic control apparatus and a method thereof. According to an embodiment of the present invention, the vehicle electronic control method realized by the vehicle electronic control apparatus comprises: a step in which an RPM control unit generates a first voltage (V1) corresponding to a target RPM of a vehicle, and transfers the generated first voltage (V1) to a power system roller of the vehicle; a step in which an RPM measuring unit measures a first RPM of the vehicle to which the first voltage (V1) is transferred; a step in which the RPM control unit generates a second voltage (V2) based on the measured first RPM and the target RPM, and transfers the generated second voltage (V2) to the power system roller of the vehicle; a step in which the RPM measuring unit measures a second RPM of the vehicle to which the second voltage (V2) is transferred; and a step in which the RPM control unit generates a third voltage (V3) based on the measured second RPM and the target RPM, and transfers the generated third voltage (V3) to the power system roller of the vehicle. The present invention aims to provide a vehicle electronic control apparatus and a method thereof, which are able to secure stability on an electronic control test.

Description

Vehicle electronic control device and method {APPARATUS AND METHOD FOR CONTROLLING ELECTRIC DEVICE IN VEHICLE}

The present invention relates to a vehicle electronic control device and method, and more particularly, by using a dynamometer roller vehicle speed control voltage, torque-air volume conversion map control, etc. to improve the accuracy of reaching the driving point of the vehicle, and at the same time implement a limit monitoring function. Thus, it relates to a vehicle electronic control device and method capable of securing stability for vehicle tests.

In general, vehicles may be equipped with electronic devices that electronically control various devices, and in modern times, as the use of electronic devices increases, the frequency of failures in electronic devices is also increasing.

For example, in recent years, the frequency of failures in electronic devices is increasing, such as when the RPM rises abnormally due to a failure of the electronic device or the RPM operates unstable due to an increase or decrease in a load.

Accordingly, in order to secure the driver's stability from such a failure of the electronic device, the safety of the vehicle and the driver is secured by employing a self-diagnosis logic for the electronic device.

However, in the related art, in order to test such electronic devices, the administrator can determine whether the vehicle reaches the driving point by directly adjusting the RPM or the load, and thus there is a problem that it is very cumbersome and inconvenient.

In addition, there is a problem that it takes a lot of time and cost for this, since the manager had to determine whether the vehicle reaches the operating point while directly following the target RPM and load.

Therefore, the accuracy of reaching the driving point of the vehicle is improved by using the vehicle's dynamometer, roller vehicle speed control voltage, torque-air volume conversion map control, etc. through the automation system, and at the same time, the stability of the electronic control test is implemented by implementing the Limit Monitoring function. The need for a vehicle electronic control device and method that can be secured is gradually increasing in the art.

The present invention is to solve the above problem, and the present invention improves the accuracy of reaching the driving point of the vehicle by using the dynamometer roller vehicle speed control voltage, torque-air volume conversion map control, etc., and at the same time, the limit monitoring function is implemented. It is an object of the present invention to provide a vehicle electronic control device and method that can ensure stability against tests.

In addition, an object of the present invention is to provide a vehicle electronic control device and method capable of saving time and cost by more efficiently controlling and adjusting the RPM and load of a vehicle through an automated system.

In addition to the technical problems of the present invention mentioned above, other features and advantages of the present invention will be described below or will be clearly understood by those of ordinary skill in the art from such technology and description.

In order to solve the above technical problem, in the vehicle electronic control method implemented by the vehicle electronic control device according to an embodiment of the present invention, the RPM control unit generates a first voltage V1 corresponding to a target RPM of the vehicle, Transmitting the generated first voltage (V1) to a dynamometer roller of the vehicle; Measuring, by an RPM measuring unit, a first RPM of the vehicle to which the first voltage V1 is transmitted; The RPM control unit generating a second voltage (V2) based on the measured first RPM and the target RPM, and transmitting the generated second voltage (V2) to a dynamometer roller of the vehicle; Measuring, by the RPM measuring unit, a second RPM of the vehicle to which the second voltage V2 is transmitted; And generating a third voltage V3 based on the measured second RPM and the target RPM, and transmitting the generated third voltage V3 to a dynamometer roller of the vehicle.

In addition, generating the first voltage V1 includes generating the first voltage V1 through Equation 1 below.

[Equation 1]

Here, K1 means a change constant according to the maximum voltage controlled by the dynamometer.

In addition, generating the second voltage V2 includes generating a second voltage V2 through Equation 2 below when the first RPM of the vehicle reaches a preset RPM. do.

[Equation 2]

Here, K2 means the final gain considering DAC resolution.

In addition, the generating of the third voltage V3 may include: the RPM measurement unit measuring a plurality of the second RPMs during a predetermined point in time, and calculating an average RPM by the RPM calculator based on this; And generating a third voltage V3 through Equation 3 below according to a difference value calculated by comparing the calculated average RPM with the target RPM.

[Equation 3]

Here, V3 is the current value of the third voltage, V3old is the previous value of the third voltage, and K3 is the control gain.

In addition, in the vehicle electronic control method implemented by the vehicle electronic control device according to another embodiment of the present invention for solving the above technical problem, the load control unit generates a target air amount corresponding to the target load of the vehicle, Transmitting the generated target air amount to an ECU (Electric Control Unit) of the vehicle; Measuring, by an air volume measurement unit, a current air volume of the vehicle to which the target air volume is transmitted; And generating a corrected air amount based on the measured current air amount and the target air amount, and transmitting the generated corrected air amount to the ECU of the vehicle.

In addition, the step of generating the corrected air quantity,

Measuring, by the air quantity measurement unit, a plurality of the current air quantities during a predetermined period, and calculating an average air quantity by the air quantity calculation unit based on this; And generating a corrected air quantity through Equation 4 below based on the average air quantity and the target air quantity.

[Equation 4]

Here, the corrected air amount is the present value, the corrected air amount old is the previous value of the corrected air amount, and K4 is the control gain.

In addition, in a computer-readable recording medium according to another embodiment of the present invention for solving the above technical problem, a program for performing the above method may be recorded.

In addition, a vehicle electronic control device according to another embodiment of the present invention for solving the above technical problem generates a voltage value corresponding to a target RPM of a vehicle, and the generated voltage value is used as a dynamometer roller of the vehicle. RPM control unit to transmit to; An RPM measuring unit that measures the current RPM of the vehicle based on the voltage value transmitted through the RPM control unit; And a central control unit that compares and analyzes the current RPM measured by the RPM measurement unit and the target RPM, and controls the RPM control unit.

In addition, further comprising an input unit for receiving a set RPM from a user, wherein the central control unit compares the current RPM and the set RPM, and controls the RPM control unit when the current RPM corresponds to the set RPM. do.

In addition, the RPM calculation unit further includes an RPM calculation unit that calculates an average RPM based on the plurality of current RPMs measured by the RPM measurement unit, and the central control unit compares the average RPM with the target RPM and calculates the It is characterized in that it controls the RPM control unit.

In addition, a vehicle electronic control device according to another embodiment of the present invention for solving the above technical problem generates a target air amount corresponding to the target load of the vehicle, and the generated target air amount is the ECU of the vehicle ( ECU: a load control unit that transmits to the Electric Control Unit); An air quantity measuring unit that measures a current air quantity of the vehicle based on the target air quantity transmitted through the load control unit; And a central control unit that compares and analyzes the current air amount measured by the air amount measuring unit and the target air amount, and controls the load control unit.

In addition, the air quantity calculation unit further comprises an air quantity calculation unit for calculating an average air quantity based on a plurality of current air quantities measured by the air quantity measurement unit, and the central control unit controls the load control unit by comparing the average air quantity and the target air quantity, and the The load control unit is characterized in that it generates a corrected air amount based on the average air amount and the target air amount and transmits it to the ECU of the vehicle.

According to the vehicle electronic control method and apparatus according to an embodiment of the present invention, the accuracy of reaching the driving point of the vehicle is improved by using a dynamometer roller vehicle speed control voltage, a torque-air volume conversion map control, and the like, and at the same time, a limit monitoring function is provided. By implementing it, there is an effect of securing stability for electronic control tests.

In addition, there is an effect of saving time and cost by more efficiently controlling and adjusting the RPM and load of the vehicle through the automation system.

In addition, other features and advantages of the present invention may be newly recognized through embodiments of the present invention.

1 is a schematic diagram of a vehicle electronic control system according to an embodiment of the present invention.
FIG. 2 is a functional block diagram of the electronic vehicle control device 200 according to an embodiment of the present invention, and FIG. 3 is a flow chart (S300) for explaining an operation method of the electronic vehicle control device 200 of FIG. Shows.
4 shows an example of test data output by the vehicle electronic control apparatus and method according to an embodiment of the present invention.
5 is a functional block diagram of the electronic vehicle control device 500 according to an embodiment of the present invention, and FIG. 6 is a flow chart (S600) for explaining an operation method of the electronic vehicle control device 500 of FIG. Shows.
7 shows an example of test data output by the vehicle electronic control apparatus and method according to an embodiment of the present invention.
8 is an exemplary diagram of a user interface (UI) providing test information input for driving the electronic vehicle control devices 200 and 500 according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the accompanying drawings. In adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible, even if they are indicated on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with an understanding of the embodiment of the present invention, the detailed description thereof will be omitted. In addition, embodiments of the present invention will be described below, but the technical idea of the present invention is not limited or limited thereto, and may be modified and variously implemented by those skilled in the art.

Throughout the specification, when a part is said to be "connected" with another part, this includes not only "directly connected" but also "indirectly connected" with another element interposed therebetween. . Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, in describing the constituent elements of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are for distinguishing the constituent element from other constituent elements, and the nature, order, or order of the constituent element is not limited by the term.

1 is a schematic diagram of a vehicle electronic control system according to an embodiment of the present invention.

The electronic vehicle control devices 200 and 500 described in the present specification below are devices capable of accurately and safely performing a test to reach the driving point of the vehicle by connecting to devices provided in the vehicle without management and control of a professional manager. I can. For example, the vehicle electronic control devices 200 and 500 include a test device for determining whether to reach the driving point by automatically adjusting RPM and load of the vehicle.

For reference, the electronic vehicle control apparatuses 200 and 500 may be configured to execute respective steps constituting the electronic vehicle control method according to an embodiment of the present invention, and, for example, are exemplary in FIGS. 3 and 6. As shown, it may be configured to execute each step of the vehicle electronic control method (S300, S600).

Specifically, the vehicle electronic control system can more quickly and accurately follow the target operating point of the vehicle through a control relationship such as a dynamometer roller vehicle speed and an ECU (Electric Control Unit) vehicle speed, as shown in FIG. It is possible to more accurately follow the target operating point of the vehicle by using the voltage calculated and provided as Forward Term and the FeedBack control of the vehicle electronic control system.

In addition, the vehicle electronic control system selects a variable capable of changing the load from among EUC internal variables that follow the load and compares the actual load with the target load, thereby improving the accuracy of tracking the target driving point of the vehicle. A detailed description of the present invention related thereto will be described in more detail below based on block diagrams, flow charts, exemplary diagrams, and the like shown in FIGS. 2 to 8 below.

FIG. 2 is a functional block diagram of the electronic vehicle control device 200 according to an embodiment of the present invention, and FIG. 3 is a flow chart (S300) for explaining an operation method of the electronic vehicle control device 200 of FIG. Shows.

2 and 3, a vehicle electronic control device 200 according to an embodiment of the present invention includes a central control unit 210, an RPM control unit 220, an RPM measurement unit 230, an input unit 240, and an RPM. It may be composed of a calculation unit 250 and a storage unit 260, and the like.

The central control unit 210 may collectively control various operations and functions of the electronic vehicle control apparatus 200 according to the present invention. For example, the central control unit 210 may generate a digital signal including a CAN communication signal (Controller Area Network) for RPM control of the vehicle, and the generated digital signal is a signal conversion device (DAC: Digital to Analog Converter). ), it can be converted into an analog signal and transmitted to the dynamometer roller of the vehicle.

That is, the central control unit 210 can control to generate a voltage corresponding to the target RPM to reach the driving point of the vehicle, and at the same time, by comparing and analyzing the current RPM and the target RPM of the vehicle measured by inputting a constant voltage, It is possible to determine whether the vehicle has reached the driving point. Accordingly, as described below, the central control unit 210 may control to extract and generate different voltages according to a change in RPM of the vehicle.

For reference, the central control unit 210 may be implemented as a processor, a controller, a micro-processor, a micro-controller, or the like.

The RPM control unit 220 generates a voltage value corresponding to the target RPM of the vehicle (for example, a first voltage V1, a second voltage V2, a third voltage V3, etc.), and the generated voltage Values can be transferred to the vehicle's dynamometer rollers. More specifically, the RPM control unit 220 generates a first voltage V1 corresponding to the target RPM of the vehicle using Equation 1 below, and transmits the generated first voltage V1 to the dynamometer roller of the vehicle. Can be (S310).

[Equation 1]

값으로 산출될 수 있다. 즉, RPM제어부(220)에 의해 생성되는 제1전압(V1)은 목표RPM과 동력계 롤러 차속 제어를 고려하여 산출되는 값으로, 목표RPM이 증가하는 경우에 차량의 동력계 롤러에 입력되는 제1전압(V1)은 비례하여 증가하여 생성될 수 있다. 또한, 예를 들어, RPM제어부(220)에 의해 생성되는 제1전압(V1)이 차량의 동력계 롤러의 입력값으로 입력되는 경우에 소정의 시간이 경과함에 따라 해당 차량은 일정한 RPM에 도달할 수 있다.Here, K1 means a change constant according to the maximum voltage controlled by the dynamometer, for example,

It can be calculated as a value. That is, the first voltage V1 generated by the RPM control unit 220 is a value calculated in consideration of the target RPM and the dynamometer roller vehicle speed control, and the first voltage input to the dynamometer roller of the vehicle when the target RPM increases. (V1) can be produced by increasing proportionally. In addition, for example, when the first voltage V1 generated by the RPM control unit 220 is input as an input value of the dynamometer roller of the vehicle, the vehicle may reach a constant RPM as a predetermined time elapses. have.

The RPM measurement unit 230 may measure the current RPM of the vehicle (for example, the first RPM, the second RPM, etc.) based on the voltage value transmitted through the RPM control unit 220, and the RPM measurement unit 230 ) May be preferably implemented with an RPM measuring device or the like that measures the RPM of the vehicle.

Specifically, the RPM measuring unit 230 may measure the first RPM of the vehicle to which the first voltage V1 is transmitted (S320). In this case, the central control unit 210 checks whether the current RPM reaches the set RPM by comparing and analyzing the current RPM measured from the RPM measurement unit 230 and a preset RPM, and RPM according to the confirmed result. The control unit 220 can be controlled. To implement this, the vehicle electronic control device 200 may be provided with an input unit 240 for receiving a setting RPM from a user.

The input unit 240 may receive setting information from a user and set a criterion for whether the dynamometer roller of the vehicle to which the first voltage V1 is transmitted reaches a certain RPM. For example, the input unit 240 may be implemented as a touch key, a push key, or the like, and receives setting information from a user or a user terminal, for example, RPM information for comparison, and It can be transmitted to the control unit 210. That is, the central control unit 210 compares the preset RPM from the input unit 240 and the current RPM of the vehicle measured from the RPM measurement unit 230 (for example, the first RPM), and compares the current RPM (for example, , When the first RPM) corresponds to the set RPM, the RPM control unit 220 may control to generate a new voltage.

That is, when the first RPM measured by the RPM measurement unit 230 corresponds to the set RPM, the RPM control unit 220 generates the second voltage V2 through Equation 2 below based on the first RPM and the target RPM. Then, the generated second voltage V2 may be transmitted to the dynamometer roller of the vehicle (S330).

[Equation 2]

의 값으로 산출될 수 있으며, 이 경우

은 약 0.002[V] 당 3[rpm]씩 증가하는 동력계 롤러의 차속 제어와 전압과의 관계를 통해 획득한 값이고, 0.001은 DAC 모듈의 resolution 이 12비트이며, 사용할 수 있는 출력 전압 범위를 0[V]에서 10[V]로 설정하는 경우에 추출되는 게인으로 따라서 최종 게인(K2)을

로 산출하여 적용할 수 있다.Here, K2 means the final gain in consideration of the DAC resolution, and in one embodiment of the present invention,

Can be calculated as the value of, in this case

Is the value obtained through the relationship between the vehicle speed control and voltage of the dynamometer roller increasing by 3[rpm] per about 0.002[V], and 0.001 is the resolution of the DAC module is 12 bits, and the usable output voltage range is 0. When setting [V] to 10[V], the final gain (K2) is

It can be calculated and applied.

In this case, the RPM control unit 220 may calculate a control time for transmitting the second voltage V2 to the dynamometer roller of the vehicle, and the control time is the target RPM and the current RPM measured from the RPM measurement unit 230. It can be calculated by multiplying the absolute value of the difference by 0.0047 and adding 1.

That is, the central control unit 210 controls to transmit the second voltage V2 generated through the control of the RPM control unit 220 to the dynamometer roller of the vehicle for a certain control time, thereby reducing the driving point tracking time of the vehicle. I can.

The RPM measurement unit 230 may measure the second RPM of the vehicle to which the second voltage V2 is transmitted (S340). For example, the central control unit 210 may control the RPM control unit 220 by comparing and analyzing at least one average RPM calculated using a plurality of RPMs measured from the RPM measurement unit 230 and a target RPM, respectively. have. To implement this, the vehicle electronic control device 200 may be provided with an RPM calculator 250 that calculates an average RPM using a plurality of second RPMs.

The RPM calculation unit 250 may calculate an average RPM based on a plurality of second RPMs measured by the RPM measurement unit 230 for a certain point in time. For example, the RPM calculation unit 250 may use a commonly used equation to calculate an average, and preferably, a plurality (eg, 10, etc.) including the RPM of the vehicle at the current time. ) By calculating the average value for the RPM, it is possible to calculate a plurality of average RPM. That is, the central control unit 210 compares the average RPM calculated from the RPM calculation unit 250 and the target RPM, and when the difference between the average RPM and the target RPM is 5 [rpm] or more, the RPM control unit 220 is Can be controlled to create and deliver.

That is, the RPM control unit 220 generates a third voltage V3 through Equation 3 below based on the second RPM and the target RPM measured by the RPM measurement unit 230, and the generated third voltage V3 Can be transmitted to the dynamometer roller of the vehicle (S350).

[Equation 3]

Here, V3 is the current value of the third voltage, V3old is the previous value of the third voltage, K3 is the control gain (for example, 0.00001), and the RPM control unit 220 is the third voltage ( By controlling V3) to be transmitted for about 5 [s], it is possible to improve the driving point tracking performance of the vehicle.

The storage unit 260 may store various data related to the operation of the vehicle electronic control device 200 and the RPM value of the vehicle. Such data may include predetermined content, graph data, and the like. The storage unit 260, as known to a person skilled in the art, includes a hard disk drive (HDD), a read only memory (ROM), a random access memory (RAM), an electrically erasable and programmable read only memory (EEPROM), a flash memory ( flash memory), CF (Compact Flash) card, SD (Secure Digital) card, SM (Smart Media) card, MMC (Multimedia) card or memory stick, etc. It may be provided, and may be provided inside the vehicle electronic control device 200, or may be provided in a separate external device.

In addition, according to a further embodiment of the present invention, an additional memory for data backup may be further provided in the storage unit 260 or separately from the storage unit 260, and the central control unit 210 stores Various data related to the RPM of the vehicle stored in the unit 260 are backed up and stored in the additional memory, thereby enabling active coping with data loss or loss.

For reference, each element 210, 220, 230, 240, 250, 260 of the vehicle electronic control device 200 shown in FIG. 2 is an exemplary element for describing the operation and function of the vehicle electronic control device 200 It will be apparent that an additional element (eg, a vehicle information input unit for inputting vehicle information, a communication unit for wired or wireless communication, etc.) may be further implemented. Hereinafter, an exemplary diagram of a user interface (UI) in which test data is output according to an embodiment of the present invention will be described in detail.

4 shows an example of test data output by the vehicle electronic control apparatus and method according to an embodiment of the present invention. For reference, in the test data of FIG. 4, blue means a voltage value input to the dynamometer roller of the vehicle (for example, the first voltage (V1), the second voltage (V2), the third voltage (V3), etc.). And, red indicates the current RPM of the vehicle measured according to the voltage value input to the dynamometer roller of the vehicle. In the test data of FIG. 4, the target RPM is about 3000 [rpm].

2 and 4, the central control unit 210 may control the RPM control unit 220 to generate a first voltage V1 corresponding to the target RPM to reach the driving point of the vehicle, and the RPM control unit ( 220) may generate the first voltage V1 using Equation 1 below, and transmit the generated first voltage V1 to the dynamometer roller of the vehicle.

[Equation 1]

값으로 산출될 수 있다. 즉, RPM제어부(220)에 의해 생성되는 제1전압(V1)은 목표RPM과 동력계 롤러 차속 제어를 고려하여 산출되는 값으로, 목표RPM이 증가하는 경우에 차량의 동력계 롤러에 입력되는 제1전압(V1)은 비례하여 증가하여 생성될 수 있으며, 동시에 상기 제1전압(V1)이 차량의 동력계 롤러의 입력값으로 입력되는 경우에 차량의 현재RPM은 소정의 시간이 경과함에 따라 점점 증가하면서 일정한 RPM에 도달할 수 있다(예를 들어, 도 4의 ①구간 참조). 참고로, 도 4의 ①구간에서 제1전압(V1)은 1.943[V]이다.Here, K1 means a change constant according to the dynamometer control maximum voltage, and in an embodiment of the present invention, K1 is

It can be calculated as a value. That is, the first voltage V1 generated by the RPM control unit 220 is a value calculated in consideration of the target RPM and the dynamometer roller vehicle speed control, and the first voltage input to the dynamometer roller of the vehicle when the target RPM increases. (V1) can be generated by increasing proportionally, and at the same time, when the first voltage V1 is input as an input value of the dynamometer roller of the vehicle, the current RPM of the vehicle gradually increases as a predetermined time elapses. RPM can be reached (for example, see section ① in FIG. 4). For reference, in section ① of FIG. 4, the first voltage V1 is 1.943[V].

Next, the central control unit 210 may compare and analyze a preset RPM from the user through the input unit 240 and the current RPM of the vehicle measured from the RPM measurement unit 230, preferably, the first RPM. For example, when the first RPM corresponds to a set RPM, the RPM control unit 220 may control to generate the second voltage V2.

In this regard, the RPM control unit 220 generates a second voltage V2 through Equation 2 below based on the first RPM and the target RPM, and transmits the generated second voltage V2 to the dynamometer roller of the vehicle. I can.

[Equation 2]

의 값으로 산출될 수 있으며, 이 경우

은 약 0.002[V] 당 3[rpm]씩 증가하는 동력계 롤러의 차속 제어와 전압과의 관계를 통해 획득한 값이고, 0.001은 DAC 모듈의 resolution 이 12비트이며, 사용할 수 있는 출력 전압 범위를 0[V]에서 10[V]로 설정하는 경우에 추출되는 게인으로 따라서 최종 게인(K2)을

로 산출하여 적용할 수 있다.Here, K2 means the final gain in consideration of the DAC resolution, and in one embodiment of the present invention,

Can be calculated as the value of, in this case

Is the value obtained through the relationship between the vehicle speed control and voltage of the dynamometer roller increasing by 3[rpm] per about 0.002[V], and 0.001 is the resolution of the DAC module is 12 bits, and the usable output voltage range is 0. When setting [V] to 10[V], the final gain (K2) is

It can be calculated and applied.

In this case, the RPM control unit 220 may shorten the driving point tracking time by transmitting the second voltage V2 to the dynamometer roller of the vehicle for a certain control time (for example, see section ② in FIG. 4). . For reference, in section ② of FIG. 4, the second voltage (V2) is 1.947[V], and the control time of the second voltage (V2) is a total of 1.00[s]. In this case, measured by the RPM measuring unit 230 The initial current RPM, that is, the initial second RPM is 2975.5 [rpm].

Here, a plurality of second RPMs may be provided repeatedly for a predetermined period, and based on this, the RPM calculator 250 may calculate an average RPM. For example, the RPM calculation unit 250 may calculate an average RPM for a plurality of (eg, 10, etc.) current RPMs including the current RPM at the current point in time, and the central control unit 210 By comparing the average RPM calculated from the RPM calculation unit 250 with the target RPM, when the difference between the average RPM and the target RPM is 5 [rpm] or more, the RPM control unit 220 can control to generate and transmit a new new voltage. have.

Specifically, the RPM control unit 220 generates a third voltage V3 through Equation 3 below based on the average RPM and the target RPM, and transmits the generated third voltage V3 to the dynamometer roller of the vehicle. have.

[Equation 3]

Here, V3 is the current value of the third voltage, V3old is the previous value of the third voltage, and K3 is the control gain (for example, 0.00001), and in this case, the RPM control unit 220 repeats through Equation 3 By transmitting the generated third voltage V3 to the dynamometer roller of the vehicle, it is possible to improve the tracking performance for the target RPM (for example, see section ③ in FIG. 4). Here, the RPM control unit 220 may repeatedly generate the third voltage V3 until the difference between the target RPM and the average RPM becomes 5 [rpm] or less. For reference, in section ③ of FIG. 4, the third voltage V3 is 1.953[V], and the control time of the third voltage V3 is a total of 5.00[s], in this case measured by the RPM measuring unit 230 It can be seen that the current RPM of the vehicle is 2997 [rpm], which is measured as a value approximating the target RPM of 3000 [rpm].

5 is a functional block diagram of the electronic vehicle control device 500 according to an embodiment of the present invention, and FIG. 6 is a flow chart (S600) for explaining an operation method of the electronic vehicle control device 500 of FIG. Shows.

5 and 6, a vehicle electronic control device 500 according to an embodiment of the present invention includes a central control unit 510, a load control unit 520, an air quantity measurement unit 530, and an air quantity calculation unit 540. And a storage unit 550 and the like.

The central control unit 510 may collectively control various operations and functions of the electronic vehicle control apparatus 500 according to the present invention. For example, the central control unit 510 may extract and change a variable capable of changing a load value from among various variables of an ECU (Electric Control Unit) in order to control an operating point according to the load of the vehicle.

That is, the central control unit 510 may control the load control unit 520 to generate an air amount corresponding to the target load to reach the operating point of the vehicle, and at the same time, the current air amount and target of the vehicle in which the amount of air corresponding to the target load is reflected. The amount of air and the like can be compared and analyzed respectively.

The load control unit 520 may generate a target air amount corresponding to the target load of the vehicle, and transmit the generated target air amount to an ECU (Electric Control Unit) of the vehicle (S610). That is, the load control unit 520 may play a role of setting a target air amount corresponding to a target load through ECU mapping or the like.

The air quantity measurement unit 530 may measure the current air quantity of the vehicle based on the target air quantity transmitted through the load control unit 520 (S620). For example, the air quantity measurement unit 530 may measure the current air quantity according to the RPM change of the vehicle in which the target air quantity is input, and to implement this, the air quantity measurement unit 530 is implemented as a sensor for measuring the air quantity for the vehicle. Can be.

Therefore, the central control unit 510 may control the load control unit 520 by comparing and analyzing at least one average air amount calculated using a plurality of current air amounts measured from the air amount measuring unit 530 and a target air amount, respectively. .

To implement this, the vehicle electronic control device 500 may be provided with an air amount calculation unit 540 that calculates an average air amount using a plurality of current air amounts measured by the air amount measurement unit 530.

The air quantity calculation unit 540 may calculate an average air quantity based on a plurality of current air quantities measured by the air quantity measurement unit 530 for a certain point in time (S630). For example, the air quantity calculation unit 540 may use a commonly used equation to calculate an average, and preferably, a plurality (eg, 10) including the amount of air in the vehicle at the current point in time. By calculating the average value for the amount of air, a plurality of average air amounts can be calculated.

That is, the central control unit 510 may control the load control unit 520 to reset the current air amount of the vehicle by comparing the average air amount calculated from the air amount calculating unit 540 with the target air amount. Specifically, the load control unit 520 generates a corrected air amount through Equation 4 below based on the average air amount and target air amount calculated from the air amount calculation unit 540, and transmits the generated corrected air amount to the ECU of the vehicle. Yes (S640).

[Equation 4]

Here, the corrected air amount is the current value, the corrected air amount old is the previous value of the corrected air amount, and K4 is the control gain (for example, 0.01), and through this, the load control unit 520 By controlling so as to correspond, it is possible to improve the accuracy of tracking the operating point. That is, the load control unit 520 may repeatedly generate a new corrected air amount so that the average air amount or the corrected air amount corresponds to the target air amount.

The storage unit 550 may store various data related to the operation of the vehicle electronic control device 500 and the amount of air in the vehicle. Such data may include predetermined content, graph data, and the like. The storage unit 550, as known to a person skilled in the art, includes a hard disk drive (HDD), a read only memory (ROM), a random access memory (RAM), an electrically erasable and programmable read only memory (EEPROM), and a flash memory. flash memory), CF (Compact Flash) card, SD (Secure Digital) card, SM (Smart Media) card, MMC (Multimedia) card or memory stick, etc. It may be, and may be provided inside the vehicle electronic control device 500, or may be provided in a separate external device.

In addition, according to a further embodiment of the present invention, an additional memory for data backup may be further provided in the storage unit 550 or separately from the storage unit 550, and the central control unit 510 stores By backing up various data related to the amount of air in the vehicle stored in the unit 550 and storing them in the additional memory, it is possible to actively cope with data loss or loss.

For reference, each element 510, 520, 530, 540, 550 of the vehicle electronic control device 500 shown in FIG. 5 corresponds to an exemplary element for describing the operation and function of the vehicle electronic control device 500. However, the present invention is not limited thereto, and it will be apparent that an additional element (eg, a vehicle information input unit for inputting vehicle information, etc.) may be further implemented. Hereinafter, an exemplary diagram of a user interface (UI) in which test data is output according to an embodiment of the present invention will be described in detail.

7 shows an example of test data output by the vehicle electronic control apparatus and method according to an embodiment of the present invention. For reference, in the test data of FIG. 7, green and red indicate the corrected air amount [%] and the current air amount [%], respectively.

5 and 7, the central control unit 510 may control the load control unit 520 to generate a target air amount corresponding to the target load through ECU mapping, etc. to reach the operating point according to the load of the vehicle. , The target air amount generated from the load control unit 520 may be applied to the vehicle for a predetermined control time (for example, see section ①'in FIG. 7). For reference, the target air volume set and input in section ①'of FIG. 7 is 40[%].

Next, the air quantity calculation unit 540 may calculate the average air quantity based on the current air quantity of the vehicle measured by the air quantity measurement unit 530, and in this case, the current air quantity is determined by the air quantity measurement unit 530 for a certain period. By repeatedly measuring, it can be provided in plural. For example, the air quantity calculation unit 540 may calculate a plurality of average air quantities for a plurality of (for example, 10, etc.) current air quantities including the current air volume of the vehicle at the current point in time, and the central control unit ( The 510 may control the load control unit 520 by comparing and analyzing each of the average air amount and the target air amount calculated from the air amount calculation unit 540.

That is, the load control unit 520 can generate the corrected air amount through Equation 4 below based on the average air amount and the target air amount according to the control signal of the central control unit 510, and transmit the generated corrected air amount to the ECU of the vehicle. have.

[Equation 4]

Here, the corrected air amount is the current value, the corrected air amount old is the previous value of the corrected air amount, and K4 is a control gain (for example, 0.01), and the load control unit 520 stores the current corrected air amount to the vehicle for a certain control time. By transmitting, it is possible to improve the accuracy for the operation point tracking (for example, see section ②'in FIG. 7). For reference, the amount of corrected air input in section ②'of FIG. 7 is 40.171 [%], and the control time is a total of 10 [s].

In this case, it can be seen that the current air volume of the vehicle measured by the air volume measurement unit 530 is 40.031 [%] and the target air volume is measured to be a value approximating 40 [%].

8 is an exemplary diagram of a user interface (UI) providing test information input for driving the electronic vehicle control devices 200 and 500 according to an embodiment of the present invention.

As shown in FIG. 8, the vehicle electronic control devices 200 and 500 may output the result of the electronic control test of the vehicle through a display, etc., and provide the result to the user, through which the user can provide various data related to the driving point of the vehicle At the same time, the electronic control test of the vehicle can be conducted more stably.

To implement this, the user sets the test conditions for the electronic control test of the vehicle in advance by entering the maximum and minimum values of the vehicle's RPM and load, respectively, using a touch key and a mechanical key. In addition, the central control units 210 and 510 of the vehicle electronic control devices 200 and 500 perform the test when the coolant temperature, knocking, vehicle speed, etc., exceeds or falls below the set test conditions during the electronic control test of the vehicle. By moving to the safety point, there is an effect of preventing safety accidents that may occur during the electronic control test of the vehicle in advance. In this case, the user may perform an electronic control test of the vehicle through an input key such as [skip] or [retry].

Those skilled in the art to which the present invention pertains, since the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof, the embodiments described above are illustrative in all respects and should be understood as non-limiting. Only do it. The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention. .

200, 500: vehicle electronic control device 210, 510: central control unit
220: RPM control unit 230: RPM measurement unit
240: input unit 250: RPM calculation unit
260, 550: storage unit 520: load control unit
530: air quantity measurement unit 540: air quantity calculation unit

Claims (12)

As a vehicle electronic control method,
Generating, by an RPM control unit, a first voltage (V1) corresponding to a target RPM of the vehicle, and transmitting the generated first voltage (V1) to a dynamometer roller of the vehicle;
Measuring, by an RPM measuring unit, a first RPM of the vehicle to which the first voltage V1 is transmitted;
The RPM control unit generating a second voltage (V2) based on the measured first RPM and the target RPM, and transmitting the generated second voltage (V2) to a dynamometer roller of the vehicle;
Measuring, by the RPM measuring unit, a second RPM of the vehicle to which the second voltage V2 is transmitted; And
Vehicle electronics comprising the step of generating a third voltage (V3) based on the measured second RPM and the target RPM, and transmitting the generated third voltage (V3) to the dynamometer roller of the vehicle Control method. The method of claim 1,
The generating of the first voltage V1 includes generating the first voltage V1 through Equation 1 below.
[Equation 1]

Here, K1 means a change constant according to the maximum voltage controlled by the dynamometer. The method of claim 1,
Generating the second voltage (V2),
When the first RPM of the vehicle reaches a preset RPM, generating a second voltage V2 through Equation 2 below.
[Equation 2]

Here, K2 means the final gain considering DAC resolution. The method of claim 1,
Generating the third voltage (V3),
The RPM measurement unit measuring a plurality of second RPMs during a predetermined time period, and calculating an average RPM by the RPM calculator based on this; And
And generating a third voltage (V3) through Equation 3 below according to a difference value calculated by comparing the calculated average RPM with the target RPM.
[Equation 3]

Here, V3 is the current value of the third voltage, V3old is the previous value of the third voltage, and K3 is the control gain. Generating, by a load control unit, a target air amount corresponding to the target load of the vehicle, and transmitting the generated target air amount to an ECU (Electric Control Unit) of the vehicle;
Measuring, by an air volume measurement unit, a current air volume of the vehicle to which the target air volume is transmitted; And
And generating a corrected air amount based on the measured current air amount and the target air amount, and transmitting the generated corrected air amount to an ECU of the vehicle. The method of claim 5,
The step of generating the corrected air quantity,
Measuring a plurality of current air quantities during a predetermined period by the air quantity measurement unit, and calculating an average air quantity by the air quantity calculation unit based on this; And
And generating a corrected air amount through Equation 4 below based on the average air amount and the target air amount.
[Equation 4]

Here, the corrected air amount is the present value, the corrected air amount old is the previous value of the corrected air amount, and K4 is the control gain. A computer-readable recording medium on which a program for performing the method according to any one of claims 1 to 6 is recorded. As a vehicle electronic control device,
An RPM control unit that generates a voltage value corresponding to the target RPM of the vehicle and transmits the generated voltage value to the dynamometer roller of the vehicle;
An RPM measuring unit that measures the current RPM of the vehicle based on the voltage value transmitted through the RPM control unit; And
Vehicle electronic control device comprising a central control unit for controlling the RPM control unit by comparing and analyzing the current RPM and the target RPM measured by the RPM measurement unit. The method of claim 8,
Further comprising an input unit for receiving the setting RPM from the user,
And the central control unit compares the current RPM with the set RPM, and controls the RPM control unit when the current RPM corresponds to the set RPM. The method of claim 8,
Further comprising an RPM calculation unit for calculating an average RPM based on the plurality of current RPMs measured by the RPM measurement unit,
And the central control unit controls the RPM control unit according to a difference value calculated by comparing the average RPM and the target RPM. As a vehicle electronic control device,
A load control unit that generates a target air amount corresponding to a target load of the vehicle and transmits the generated target air amount to an ECU (Electric Control Unit) of the vehicle;
An air quantity measuring unit that measures a current air quantity of the vehicle based on the target air quantity transmitted through the load control unit; And
Vehicle electronic control device comprising a central control unit for controlling the load control unit by comparing and analyzing the current air amount measured by the air amount measuring unit and the target air amount. The method of claim 11,
Further comprising an air quantity calculation unit for calculating an average air quantity based on a plurality of current air quantities measured by the air quantity measurement unit,
The central control unit controls the load control unit by comparing the average air amount and the target air amount, and the load control unit generates a corrected air amount based on the average air amount and the target air amount and transmits it to the ECU of the vehicle. Vehicle electronic control device.

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