KR20160112461A

KR20160112461A - Method for tuning a ECU parameter of a vehicle

Info

Publication number: KR20160112461A
Application number: KR1020150038233A
Authority: KR
Inventors: 김영백
Original assignee: 한국전자통신연구원
Priority date: 2015-03-19
Filing date: 2015-03-19
Publication date: 2016-09-28

Abstract

A method for tuning an ECU parameter of a vehicle, the method comprising the steps of: sensing a communication connection between an ECU memory of the vehicle and a portable memory; detecting an identification value of the portable memory ID) stored in the portable memory and, when the portable memory is authenticated, storing the ECU parameter stored in the ECU memory in the portable memory and storing the tuning parameter stored in the portable memory in the ECU memory And selectively performing any one of the operations.

Description

[0001] The present invention relates to a method of tuning an ECU parameter of a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ECU tuning technique of a vehicle, and more particularly to a method of tuning an ECU parameter to transplant a parameter of a vehicle ECU to another vehicle through a portable memory.

In recent years, many electronic control devices have been attached to vehicles. Among them, an ECU (Electronic Control Unit) refers to an electronic device that controls an engine. It is also referred to as an EMS (Engine Management System), which means an ECM (Electronic Control Module) or a system for managing an engine.

Actually, the functions of the ECU are many, such as the output of the vehicle and the regulation of the exhaust gas, but the biggest function is to supply the proper amount of fuel and to ignite the plug at the correct time. Accurate control of the engine improves the output and exhaust emissions. To this end, a program is built to accept the signals sent by the sensors and perform calculations appropriate to the situation. In addition, the ECU includes an operating portion for operating according to the calculation result.

The ECU basically measures the amount of air entering the engine and injects the fuel according to the value set in accordance with the situation on the basis of the stoichiometric air-fuel ratio (14.5: 1 to 14.7: 1, air weight / fuel weight) The sensor is used to determine whether the amount of fuel actually injected is appropriate, and then the next fuel injection amount will be referred to the calculation for more accurate control.

When a vehicle maker (vehicle development company) develops a vehicle, it decides which ECU to use according to the purpose of use. In addition, the ECU maker (ECU development company) creates an engine control program (control logic: ROM program area) and data (ROM data area) in accordance with the request of the vehicle manufacturer. Here, the engine control program and all the work for creating data can be referred to as ECU tuning in a broad sense.

In general, the program part of the ECU can be changed only by the manufacturer, and the data part is configured so that each user or tuner can change it. The task of changing data for ECU tuning is called data tuning, mapping, or calibration. Often, ECU tuning in tuning shops is a narrow sense of ECU tuning, rather than changing all of the complicated content, but rather fixing some of the data that the user needs for the purpose.

On the other hand, recently introduced new cars learn a driver's driving habits up to a certain mileage distance and optimize ECU parameters (new vehicle tampering) is performed. Thereafter, the ECU parameter maintains the optimum state according to the driver's driving pattern (driving habit).

An object of the present invention is to provide an ECU parameter tuning method for easily transferring ECU parameters of a vehicle to an ECU memory of another vehicle.

According to an aspect of the present invention, there is provided a method for tuning an ECU parameter of a vehicle, comprising the steps of: sensing a communication connection between an ECU memory of the vehicle and a portable memory; ID) stored in the portable memory and, when the portable memory is authenticated, storing the ECU parameter stored in the ECU memory in the portable memory and storing the tuning parameter stored in the portable memory in the ECU memory And selectively performing any one of the operations.

A method for tuning an ECU parameter of a vehicle according to an embodiment of the present invention stores an ECU parameter that learned a driving habit in a driver's vehicle or an ECU tuning parameter that is optimally set by a driver in an individual portable memory, The tuning parameters can be stored (transplanted) in the ECU memory of the multi-use vehicle or the public vehicle including the rental car. According to the present invention, the environment optimized for the driving pattern of the driver is maintained in the multi-use vehicle or the public vehicle, thereby improving the driving stability and the driving fuel economy. Further, according to the present invention, it is possible to expect an effect of reducing the incidence of traffic accidents by providing an environment optimized for the driver.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing an environment in which an ECU parameter tuning apparatus of a vehicle operates according to an embodiment of the present invention; Fig.
2 is a block diagram of an ECU parameter tuning apparatus for a vehicle according to an embodiment of the present invention;
3 is a flowchart of a method of tuning an ECU parameter of a vehicle according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined by the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that " comprises, " or "comprising," as used herein, means the presence or absence of one or more other components, steps, operations, and / Do not exclude the addition.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are given to the same or similar components, and in the following description of the present invention, Detailed explanations of the detailed description will be omitted when the gist of the present invention can be obscured.

The ECU parameter tuning device for a vehicle according to the embodiment of the present invention reads ECU parameters stored in an ECU (Electronic Control Unit) of a vehicle (particularly, the memory 100 of the ECU) as shown in FIG. 1, And stores the parameter in the portable memory 300 of the user as a tuning parameter. The ECU parameter tuning device 200 reads the tuning parameters stored in the portable memory 300 of the user and stores (reads) the read tuning parameters in the ECU memory 100 of the vehicle that the user wishes to operate. For example, the ECU parameter tuning apparatus 200 of a vehicle according to the embodiment of the present invention stores ECU parameters (tuning parameters) stored in the portable memory 300 in an ECU memory of another vehicle such as a rental car.

Here, for convenience of explanation, the parameters stored in the ECU memory 100 are referred to as ECU parameters, and the parameters stored in the user's portable memory 300 are referred to as tuning parameters.

The portable memory 300 refers to a memory that is easy to carry by the user. For example, the portable memory 300 may be a card-shaped memory such as an ID card, an IC card, or the like.

The ECU parameters stored in the ECU memory 100 of the vehicle are logic including variables such as fuel consumption and ignition timing that are determined in advance according to the conditions such as load, number of revolutions, speed of the vehicle, and the like of the engine. For example, the ECU parameters may include a fuel amount set value, a pressure sensor set value, a temperature sensor set value, a water temperature sensor set value, an injector set value, and the like.

At this time, the ECU parameters may be set by the ECU manufacturer according to the specifications of the vehicle at the time of mass production of the vehicle, and stored in the ECU memory 100. Alternatively, the ECU parameter may be a tuning parameter whose set value is mapped (tuned) through a process for optimizing the output and torque of the vehicle.

As an example, the ECU parameter may be set through a new vehicle tampering process that optimizes the output of the vehicle and the fuel consumption according to an operation pattern up to a first predetermined distance (for example, 2000 KM) after the vehicle is delivered. As another example, the ECU parameters may be set in the ECU via optimized setpoint inputs of the driver or tuning expert.

Hereinafter, the operation of the ECU parameter tuning apparatus 200 of the vehicle according to the embodiment of the present invention will be described in detail with reference to FIG. An ECU parameter tuning apparatus 200 for a vehicle according to an embodiment of the present invention includes a communication unit 210, an authentication unit 220, a selection unit 230, and a control unit 240, as shown in FIG.

The communication unit 210 transmits and receives data between the ECU of the vehicle (particularly, the ECU memory 100 of the vehicle) and the portable memory 300 of the user. For example, the communication unit 210 transmits and receives data via the CAN communication with the ECU memory 100 of the vehicle.

In addition, the communication unit 210 transmits / receives data to / from the portable memory 300 through wired or wireless communication. For example, the communication unit 210 is implemented in the form of a connector (memory slot) in contact with the portable memory 300, and transmits / receives data to / from the portable memory 300 through wired communication.

As another example, the communication unit 210 may be implemented in a non-contact manner with the portable memory 300 through a separate wireless communication interface, such as an RFID reader, and may transmit and receive data via the wireless communication with the portable memory 300 It is possible.

The authentication unit 220 confirms whether data transmission / reception between the ECU memory 100 and the portable memory 300 is possible. When the ECU 220 wants to store ECU parameters stored in the ECU memory 100 in the portable memory 300 or to store the tuning parameters stored in the portable memory 300 in the ECU memory 100, And performs an authentication operation to check whether the memory 300 is legitimate. At this time, the authentication unit 220 checks the identification value (ID) of the portable memory 300 connected through the communication unit 210 to check whether the connected portable memory 300 is authenticated.

For example, the authentication unit 220 can check the legitimacy of the portable memory 300 to store the ECU parameters using the previously stored ID list. Here, the ID list may be an ID list of authorized devices (e.g., portable memory, etc.) that are qualified to store ECU parameters through a dictionary registration process.

The selection unit 230 selects whether to store the ECU parameters stored in the ECU memory 100 in the portable memory 300 or the tuning parameters stored in the portable memory 300 in the ECU memory 100. [ At this time, the selecting unit 230 may select whether to store the ECU parameters stored in the ECU memory 100 in the portable memory 300 or the tuning parameters stored in the portable memory 300, It is possible to select whether to store the parameter in the ECU memory 100. [ At this time, the user interface may be implemented as a touch pad capable of touch input or a form capable of button input.

The control unit 240 selects either of the operation of storing the ECU parameter stored in the ECU memory 100 in the portable memory 300 and the operation of storing the tuning parameter stored in the portable memory 300 in the ECU memory 100 . At this time, if it is confirmed by the authentication unit 220 that the portable memory 300 is authenticated, the control unit 240 performs an operation of storing the parameter according to the selection result of the selection unit 230. [

As an example, the control unit 240 stores the ECU parameters stored in the ECU memory 100 in the portable memory 300. More specifically, when the selection unit 230 selects to store the ECU parameters stored in the ECU memory 100 in the portable memory 300, the control unit 240 reads the ECU parameters stored in the ECU memory 100 , And stores the read-out ECU parameter in the portable memory 300.

At this time, the control unit 240 may store at least one of the ECU type and the model name of the ECU mounted with the ECU together with the ECU parameter. Here, the ECU parameter stored in the portable memory 300 may be referred to as a tuning parameter.

As another example, the control unit 240 stores (transposes) the tuning parameters stored in the portable memory 300 in the ECU memory 100. [ Here, the tuning parameter stored in the portable memory 300 may be a parameter read from the ECU memory 100 of the driver's vehicle and stored, or a tuning parameter into which a set value optimized by the tuning expert is input.

More specifically, when the selection unit 230 selects to store the tuning parameters stored in the portable memory 300 in the ECU memory 100, the control unit 240 reads the tuning parameters stored in the portable memory 300 , And stores the read tuning parameters in the ECU memory 100. At this time, the control unit 240 first confirms whether or not the tuning parameter is applicable to the ECU to be stored.

For example, the control unit 240 confirms the specification of the ECU to which the tuning parameter is to be stored, and determines whether the tuning parameter is applicable to the corresponding ECU. At this time, the type of the vehicle equipped with the ECU to which the tuning parameter is to be stored or the ECU model name is checked to confirm the ECU specification. In addition, the control unit 240 determines whether the tuning parameters can be applied to the ECU, which stores the tuning parameters, using the model information or the model name information stored together with the tuning parameters.

If the specifications of the ECU to which the tuning parameters can be applied are different from the specifications of the ECUs to which the tuning parameters are to be stored, the controller 240 controls the tuning parameters stored in the portable memory 300 According to the specification of the ECU to be stored, and stores the converted tuning parameters in the ECU memory 100. Here, the tuning parameter conversion logic may be an operation processing algorithm capable of converting the tuning parameters according to the ECU specification, and may be updated at an external input or at regular intervals.

The ECU parameter tuning device 200 of the vehicle according to the embodiment of the present invention stores the ECU parameter that learned the driving habit in the driver's vehicle or the ECU tuning parameter that the driver has set optimally in the portable memory, Stored ECU parameters or tuning parameters can be stored in the ECU memory of the multi-use vehicle or the public vehicle including the rental car. This makes it possible to maintain the environment optimized for the driver's operation pattern in the multi-use vehicle or the public vehicle, thereby improving the driving stability and the driving fuel economy. In addition, by providing an optimized environment for the individual driver, the effect of reducing the incidence of traffic accidents can be expected.

3 is a flowchart of a method for storing ECU parameters of a vehicle according to an embodiment of the present invention.

First, it is determined whether data communication is established between the ECU memory 100 and the portable memory 300 (S310). For example, it is possible to confirm whether the ECU memory 100 and the portable memory 300 are connected to the ECU parameter tuning apparatus 200 through the connection operation of the portable memory 300 by the user. At this time, the ECU parameter tuning device 200 may be preinstalled in the vehicle and already connected to the ECU memory 100. In this case, the ECU parameter tuning device 200 can confirm only the connection of the portable memory 300. As an example, it is possible to check whether or not the portable memory 300 is inserted into the memory insertion port implemented in the ECU parameter tuning device 200 to confirm whether or not the communication connection is established. Or the ECU parameter tuning device 200 can be connected to the portable memory 300 through a separate wireless communication interface.

If it is confirmed in step S310 that communication is established, the ECU parameter tuning apparatus 200 authenticates the portable memory 300 (S320). For example, the ECU parameter tuning device 200 can confirm and authenticate the legitimacy of the portable memory 300 using the previously stored ID list. Here, the ID list may be an ID list of authorized devices (e.g., portable memory, etc.) that are qualified to store ECU parameters through a dictionary registration process.

If it is confirmed in step S320 that the portable memory 300 is authenticated, the ECU parameter tuning apparatus 200 selects a memory for storing the parameter (S330). Specifically, the ECU parameter tuning apparatus 200 determines whether to store the ECU parameters stored in the ECU memory 100 in the portable memory 300 or the tuning parameters stored in the portable memory 300 in the ECU memory 100 It is selected.

At this time, the ECU parameter tuning device 200 determines whether or not to store the ECU parameters stored in the ECU memory 100 in the portable memory 300 or in the portable memory 300 according to a user's selection input inputted through a separate user interface It is possible to select whether to store the stored tuning parameters in the ECU memory 100. [

If it is determined in step S330 that the ECU parameter stored in the ECU memory 100 is to be stored in the portable memory 300 in step S340-Y, the ECU parameter tuning apparatus 200 determines whether or not the ECU parameter stored in the ECU memory 100 And stores the read ECU parameter in the portable memory 300 (S350). At this time, the ECU parameter tuning device 200 can store at least one of the model of the vehicle equipped with the ECU and the model name of the ECU together with the ECU parameter.

If it is determined in step S330 that the tuning parameters stored in the portable memory 300 are to be transplanted to the ECU memory 100 in step S340-Y, the ECU parameter tuning apparatus 200 determines whether the tuning parameters stored in the portable memory 300 (S360). &Lt; / RTI > At this time, the tuning parameters stored in the portable memory 300 may be stored separately by the driver or the tuning expert. Alternatively, the tuning parameters stored in the portable memory 300 may be those in which ECU parameters previously stored in the ECU memory 100 of the vehicle (first vehicle) are stored. In this case, the vehicle equipped with the ECU to which the tuning parameter is to be transplanted may be a vehicle different from the first vehicle (second vehicle).

For example, the ECU parameter tuning device 200 confirms the type of the vehicle (second vehicle) equipped with the ECU to which the tuning parameters are to be transferred, or the ECU model name, and stores the model information stored together with the tuning parameters of the portable memory 300, The tuning parameters can be transferred to the ECU.

If it is determined in step S360 that the ECU specification and the tuning parameter to which the tuning parameter can be applied are different from the specifications of the ECU to be transplanted (S360-N), the ECU parameter tuning apparatus 200 uses the previously stored tuning parameter conversion logic The tuning parameters stored in the portable memory 300 are converted to conform to the specification of the ECU to be transplanted (S370). Here, the tuning parameter conversion logic may be an operation processing algorithm capable of converting the tuning parameters according to the ECU specification, and may be updated at an external input or at regular intervals.

Then, the ECU parameter tuning device 200 stores the tuning parameters of the portable memory 300 in the ECU memory 100 (S380). At this time, the ECU parameter tuning apparatus 200 transplants the converted tuning parameter to the ECU memory 100 through the process of step S350. If it is determined in step S360 that the ECU specification to which the tuning parameters can be applied and the tuning parameters are identical to the specifications of the ECU to be transplanted (S360-Y), the tuning parameters stored in the portable memory 300 are stored in the ECU memory 100 .

The ECU parameter tuning device 200 of the vehicle according to the embodiment of the present invention stores the ECU parameter that learned the driving habit in the driver's vehicle or the ECU tuning parameter that the driver has set optimally in the portable memory, The stored ECU parameters or tuning parameters can be transplanted to the ECU memory of a multi-use vehicle or a public vehicle including a rental car. This makes it possible to maintain the environment optimized for the driver's operation pattern in the multi-use vehicle or the public vehicle, thereby improving the driving stability and the driving fuel economy. In addition, by providing an optimized environment for the individual driver, the effect of reducing the incidence of traffic accidents can be expected.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the scope of the claims and their equivalents shall be construed as being included within the scope of the present invention.

100: ECU memory 200: ECU parameter tuning device
210: communication unit 220:
230: selection unit 240:
300: portable memory

Claims

Sensing a communication connection between the ECU memory of the vehicle and the portable memory;
Authenticating the portable memory using an identification value (ID) of the portable memory when the communication connection is detected; And
Selectively performing an operation of storing the ECU parameter stored in the ECU memory in the portable memory and an operation of storing the tuning parameter stored in the portable memory in the ECU memory when the portable memory is authenticated;
Of the vehicle.