KR20150064474A - Software upgrade method for vehicle controller - Google Patents

Abstract

The present invention relates to a method for upgrading software in a vehicle controller. According to the present invention, a vehicle management server collects vehicle information via wireless communications with a vehicle; analyzes the collected vehicle information to extract conditions for executing an update for each vehicle controller; then monitors, in real time, vehicle information on a vehicle whose software is to be updated; and, if the vehicle information satisfies the extracted conditions for executing an update for each vehicle controller, updates the software for the vehicle controller.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle controller software upgrade method, and more particularly, to a vehicle controller software upgrade method for collecting vehicle data through wireless communication and analyzing the collected vehicle data, And a software upgrade method.

In recent years, there have been a growing number of controllers such as BCM / ETACS (Body Control Module / Electronic Time & Alarm Control System), ABS ECU (Anti-lock Brake System Electronic Control Unit), engine ECU and airbag ECU It is going. These controllers require software upgrades in order to change specifications and upgrade functions.

The conventional method of upgrading the vehicle controller software can be roughly divided into two.

First, a service center employee can arbitrarily adjust the state of the vehicle controller so that the driver can install the vehicle at a dealer shop or a service center, raise the vehicle, turn on / off the vehicle, It is a way to proceed. Currently, this method is used as a representative method for upgrading or repairing a controller when the vehicle is sold in most vehicle manufacturers when a problem occurs in the software.

Secondly, when a software upgrade of a controller is being newly developed by various vehicle manufacturers, the software is binaryized, transmitted to a telematics device using a wireless network, and upgraded to a target controller. So that the user can make a notification through the telematics screen or the alarm function. Then, the user recognizes the content of the screen and allows the in-vehicle controller software upgrade to proceed according to the display procedure.

The first of these two methods must be entered by the driver or service center personnel. Once the driver has to move the vehicle to the service center, the center staff must not only proceed with the software upgrade, but also adjust the situation. The second method has the advantage that the driver does not need to move the vehicle to the service center, but the driver must manually adjust the vehicle condition according to the various Noti information displayed on the telematics screen and wait until the software upgrade or diagnostic test is finished A waste of time may also occur.

KRKR100792422 B1 KRKR1020130036794A

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the prior art described above, and it is an object of the present invention to provide a vehicular vehicle which collects vehicle data through wireless communication and analyzes the collected vehicle data, And to provide a method for upgrading the controller software.

According to an aspect of the present invention, there is provided a method for upgrading a vehicle controller software, the method comprising: collecting vehicle information through wireless communication with a vehicle; analyzing the collected vehicle information to extract an update execution condition for each controller Monitoring the vehicle information of the update target vehicle in real time after extracting the update execution condition for each controller; and performing software upgrade to the controller if the vehicle information of the update target vehicle satisfies the update execution condition for each extracted controller The method of claim 1, further comprising the step of:

The vehicle information may include vehicle state information and vehicle environment information.

The step of extracting the update execution condition for each controller may further include the steps of: sorting the collected vehicle information in a time series; extracting a stop time zone from the vehicle information sorted in time series and analyzing the vehicle surroundings; A step of collecting vehicle information at the time of stopping based on the extracted stop time zone and the result of analysis of the surrounding environment of the vehicle, and a step of extracting update execution conditions for each controller from the collected vehicle information at the stopping time based on the collection frequency of the collected vehicle information at the stopping time The method comprising the steps of:

The software upgrading step may include transmitting update software and an update instruction command of the target vehicle controller to the target vehicle.

The present invention further includes a step of monitoring the target vehicle during the software upgrade and sending an update stop command to the target vehicle when the monitoring result indicates that the vehicle information of the target vehicle does not satisfy the update execution condition do.

The present invention collects vehicle information through wireless communication and analyzes the collected vehicle information to identify vehicle operation patterns and automatically upgrade the software of the vehicle controller. Accordingly, the present invention can be solved without the driver's knowledge by upgrading the vehicle controller firmware and the application program through the wireless network in the event of a massive recall after mass production of the vehicle.

In addition, since the present invention does not require the operation of the driver, the controller update can be performed without being limited by time and space.

Further, since the present invention can continuously monitor the controller update status of the vehicle, it is possible to discriminate and manage the vehicles that have not been updated with the controller.

Further, the present invention can reduce the number of service center personnel and increase the convenience of the driver due to the automation of the vehicle controller update.

Further, the present invention can support the simultaneous controller reprogramming of multiple vehicles for mass production, thereby reducing the costs associated with vehicle recalls.

Further, the present invention can manage the controller update software in a single server by version.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a vehicle controller software upgrade system according to an embodiment of the present invention; FIG.
2 is a block diagram of the controller update apparatus shown in Fig.
3 is a block diagram of the vehicle management apparatus shown in Fig.
4 is a flow chart illustrating a method of upgrading a vehicle controller software in accordance with an embodiment of the present invention.
5 is a flowchart showing an update execution condition extraction process shown in FIG.
FIG. 6 is a flowchart showing the software upgrade execution process shown in FIG. 4; FIG.

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

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reprogramming technique for updating software in order to compensate for problems of software installed in a vehicle controller, such as firmware, an operating system, and an application program, or to modify functional parts.

FIG. 1 is a block diagram showing a vehicle controller software upgrading system according to an embodiment of the present invention, FIG. 2 is a block diagram of the controller updating apparatus shown in FIG. 1, Fig.

1, a vehicle controller software upgrade system (hereinafter referred to as a "system") includes a vehicle controller 10, a position receiving unit 20, a sensor unit 30, a controller update device 100, And a server (200). Here, the vehicle controller 10 and the controller update apparatus 100 are connected to each other via a CAN (Controller Area Network) bus, and can be interlocked with each other. The controller update device 100 and the vehicle management server 200 are connected to each other through a wireless network capable of wireless communication such as a wireless LAN, a hotspot, a mobile communication network, and perform data transmission / reception with each other.

The vehicle controller 10 is composed of a plurality of controllers for controlling each part of the vehicle such as engine control, automatic transmission controller, drive system control, steering system control, and the like.

The position receiver 20 acquires current position information and time information of the vehicle using a satellite, and is implemented by a Global Positioning System (GPS) module. The position information of the vehicle acquired through the position receiving unit 20 is used as the surrounding information.

The sensor unit 30 is composed of one or more sensors (pressure sensors, temperature sensors, etc.) for measuring the environmental data of the vehicle. Here, the ambient environment data includes temperature, pressure, weather information, and the like.

The controller update device 100 collects and transmits the vehicle information to the vehicle management server 200 and downloads the update software of the target vehicle controller 10 under the control of the vehicle management server 200, (Reprogramming) with respect to the program.

2, the controller update apparatus 100 includes a vehicle information collecting unit 110, a memory 120, a wireless transceiver 130, a controller 140, and the like.

The vehicle information collecting unit 110 collects vehicle information such as vehicle condition information and vehicle environment information. That is, the vehicle information collecting unit 110 collects vehicle state information transmitted from the vehicle controller 10 and transmits position information (including time information) transmitted from the position receiving unit 20 and the sensor unit 30, And collects the measured data as vehicle environment information.

The memory 120 stores vehicle information collected through the vehicle information collecting unit 110, update software provided from the vehicle management server 200, backup software, and the like.

The wireless transceiver unit 130 wirelessly communicates with the vehicle management server 200 via the wireless network.

The control unit 140 transmits the vehicle information collected through the vehicle information collecting unit 110 to the vehicle management server 200 through the wireless transmitting / receiving unit 130. The control unit 140 receives the update instruction command and the update software of the target controller 10 via the wireless transmission unit 130. [ The control unit 140 installs the update software in the target controller 10 according to the update instruction command. At this time, the control unit 120 backs up the previous version of the software installed in the target controller 10 to the memory 120 before starting the software upgrade of the target controller 10.

If an error occurs during the software upgrade process for the target controller 10, the control unit 120 stops the software upgrade and restores the software to the previous version of the software.

The vehicle management server 200 collects vehicle-specific vehicle information through the controller update device 100, and analyzes the vehicle operation pattern using the collected vehicle information. Then, the vehicle management server 200 extracts and manages the update execution condition through analysis of the vehicle operation pattern. The update execution condition is status information (e.g., time zone and position information for stopping for a predetermined period of time in a state of turning on the engine) capable of performing an update program installation for the target vehicle controller.

Thereafter, when the vehicle management server 200 satisfies the update execution condition in which the vehicle information is extracted through the real-time monitoring of the update target vehicle, the update request software and the update instruction command of the target controller are transmitted to the controller update apparatus 100 installed in the target vehicle .

3, the vehicle management server 200 includes a wireless communication unit 210, an analysis unit 220, a collection data storage unit 230, an analysis result storage unit 240, a software storage unit 250, 260).

The wireless communication unit 210 performs data communication through the wireless network and performs data transmission / reception with the wireless transmission / reception unit 130 of the controller update apparatus 100. That is, the wireless communication unit 210 receives the vehicle information transmitted from the controller update apparatus 100. [

The analyzer 220 analyzes the collected vehicle information and extracts an update execution condition for each controller. At this time, the analysis unit 220 generates a vehicle driving pattern using a known large-capacity data analysis technique (prediction methodology) (e.g., Google's Prediction API). Then, the analysis unit 220 extracts an update execution condition for each controller by referring to the update time information for each controller. The analyzer 220 converts the update execution condition extracted through the data analysis into a lookup table.

The collected data storage unit 230 stores vehicle information received through the wireless communication unit 210. Here, the vehicle information includes vehicle state information and vehicle environment information. The collected data storage unit 230 is implemented as a large-capacity database.

The analysis result storage unit 240 stores the update execution condition output from the analysis unit 220 in the form of a look-up table.

The software storage unit 250 also stores software and software information for each controller. Here, the software is a binary file, and the software information includes a version and a binary file size.

In addition, the software storage unit 250 stores the update time information for each controller.

The processing unit 260 collects vehicle information received through the wireless communication unit 210, classifies the collected vehicle information by data, and stores the classified vehicle information in the collected data storage unit 230.

The processor 260 monitors the target vehicle in real time to continuously check whether the vehicle information satisfies the update execution condition. If the vehicle information satisfies the update execution condition, the controller transmits update software and an update instruction command of the target controller to the controller update device 100 through the wireless communication unit 210. [

4 is a flowchart illustrating a method of upgrading a vehicle controller software according to an embodiment of the present invention.

Referring to FIG. 4, the vehicle management server 200 collects vehicle information transmitted from the controller update device 100 installed in the vehicle (S11). The processing unit 260 of the vehicle management server 200 classifies the vehicle information received through the wireless communication unit 210 according to data and stores the classified vehicle information in the collected data storage unit 230.

The vehicle management server 200 analyzes the collected vehicle information and extracts an update execution condition for each controller of the vehicle (S12).

The vehicle management server 200 stores and manages the extracted update execution conditions in the form of a lookup table (S13). The vehicle management server 200 continuously monitors each vehicle and updates the update execution condition lookup table.

Thereafter, the vehicle management server 200 monitors the update target vehicle in real time (S14). Here, the update target vehicle means a vehicle equipped with a vehicle controller that requires updating.

The vehicle management server 200 monitors the target vehicle in real time and confirms whether the vehicle information of the target vehicle satisfies the update execution condition (S15).

When the vehicle information of the target vehicle satisfies the update execution condition, the vehicle management server 200 executes the software upgrade to the target vehicle controller of the target vehicle (S16).

5 is a flowchart illustrating an update execution condition extraction process shown in FIG.

Referring to FIG. 5, the analysis unit 260 of the vehicle management server 200 performs time series sorting of the collected vehicle information according to data types (S121). That is, the vehicle management server 200 arranges the vehicle status information and environment information such as position, temperature, and weather in chronological order.

The analysis unit 260 of the vehicle management server 210 extracts a stop time zone from the vehicle information sorted in time series and analyzes the surrounding environment of the vehicle (S122). In other words, the analysis unit 260 extracts the time zone (including the stop time) that is stopped from the vehicle information with the start-up being turned on.

The analysis unit 260 generates the lookup table of the environment information analysis result (S123-1), and generates the extracted time zone information in the form of a lookup table (S123-2).

The analysis unit 260 analyzes the association between the environmental information analysis result and the stop time zone information, collects vehicle information of a situation in which the vehicle stops a certain time in the same environment, and counts the frequency of the vehicle information (S124).

The analyzer 260 extracts an update execution condition for each controller by referring to the update time information for each controller (S125). Here, the update time information for each controller is calculated in consideration of the update software size for each controller, the update software download speed, the update software installation time, and the like, and actual measurement data may be utilized. In other words, the analysis unit 260 extracts the vehicle information of the situation where the time information required for completion of the software upgrade is stopped, and determines the vehicle information having the highest frequency among the extracted vehicle information as the update execution condition.

FIG. 6 is a flowchart showing the software upgrade execution process shown in FIG. 4; FIG.

When the vehicle information satisfies the update execution condition in step S15 of FIG. 4, the vehicle management server 200 transmits the update instruction command and the update software of the target controller to the controller update apparatus 100 of the target vehicle.

The controller update apparatus 100 receives the update instruction command transmitted from the vehicle management server 200 and the update software of the target controller (S161).

The control unit 140 of the controller update apparatus 100 backs up the previous version of the software installed in the target controller 10 in order to upgrade the software of the target controller according to the instruction of the vehicle management server 200 at step S162.

When the backup of the previous version software is completed, the controller 140 of the controller update apparatus 100 installs update software (new version software) in the target controller 10 (S163). That is, the controller update apparatus 100 performs a software upgrade for the target controller 10. [

The controller update apparatus 100 confirms whether an error occurs during the software upgrade (S164).

When an error occurs during the software upgrade, the controller update apparatus 100 suspends the software upgrade of the target controller 10 (S165). On the other hand, the controller update device 100 immediately stops the software upgrade of the target controller 10 when an update stop command is received from the vehicle management server 200. The vehicle management server 200 monitors the target vehicle even during the software upgrade of the target controller and transmits an update stop command to the target vehicle if the vehicle information of the target vehicle does not satisfy the update execution condition.

Subsequently, the controller update apparatus 100 reinstalls the backed up version of the software in the target controller 10 (S166). That is, the controller update apparatus 100 restores the target controller 10 to the state before the software upgrade.

10: vehicle controller
20:
30:
100: controller update device
200: vehicle management server
210:
220: Analytical Department
230: Collected data storage unit
240: Analysis result storage unit
250: Software storage

Claims (5)

Collecting vehicle information through wireless communication with the vehicle,
Analyzing the collected vehicle information and extracting an update execution condition for each controller;
Monitoring the vehicle information of the update target vehicle in real time after extracting the update execution condition for each controller;
And performing a software upgrade for the controller if the vehicle information of the update vehicle satisfies the update execution condition for each of the extracted controllers. The method according to claim 1,
The vehicle information includes:
The vehicle state information and the vehicle environment information. The method according to claim 1,
The step of extracting the controller-specific update execution condition includes:
Arranging the collected vehicle information in a time series,
Extracting a stop time zone from the vehicle information sorted in time series and analyzing a vehicle surroundings environment;
Collecting vehicle information at the time of stopping based on the extracted stop time zone and the result of analyzing the surrounding environment of the vehicle,
And extracting an update execution condition for each controller from the collected vehicle information at the stopping time on the basis of the collection frequency of the collected vehicle information at the stopping time. The method according to claim 1,
The software upgrading step may include:
And transmits an update software and an update instruction command of the target vehicle controller to the target vehicle. The method according to claim 1,
Further comprising the step of monitoring the target vehicle during the software upgrade and sending an update stop command to the target vehicle if the monitoring result indicates that the vehicle information of the target vehicle does not satisfy the update execution condition Way.

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