Patent Grant
7516000
This application relates to test procedures for vehicle diagnostic systems. More specifically, it relates to a system for replacing textual test procedures with pictures to be implemented in a diagnostics system in the automotive industry.
A number of different types of diagnostic tools have been used to assist in diagnosis and repair of fault conditions in automotive vehicles. Such tools can typically be connected to an on-board computer of a vehicle in order to download and analyze vehicle operational information from the on-board computer. Additionally, such diagnostic tools typically allow a user to review and/or enter information, including fault symptoms, into the diagnostic tool to be used instead of, or in conjunction with, the information downloaded from the vehicle's on-board computer to diagnose and assist in the repair of fault conditions in the vehicle.
Automotive vehicles are becoming highly computerized products. Consequently, automotive mechanics are increasingly relying upon computerized diagnosis of vehicle operational information that can be accessed via a vehicle on-board computer to diagnose and repair vehicle faults. Additionally, to conduct a computerized diagnosis, an automotive mechanic must review much text to diagnose faults and then solve these faults. Moreover, today's automotive mechanics rely heavily on the computerized diagnosis instructions and information, and less on their own knowledge of a certain automobile.
Since today's diagnosis products provide guidance in text only, it may be difficult to understand or translate into other languages during the diagnostic procedure. Thus, such products are inherently limited because they are prone to incorrect interpretations and mistakes. Jargon and regional slang exacerbate this problem. A considerable amount of time and expense is required to import, format, maintain, and translate diagnostic procedures. Thus, there is a need to simplify many of the diagnostic questions and instructions for service technicians by replacing some or all of the text regarding components involved in diagnostic procedures with pictures, sounds, symbols, colors, or other graphics.
Therefore, a diagnostic tool with the ability to provide instructions or other text in the form of pictures would be desirable.
The present application relates to a vehicle diagnostic system that is comprised of a processor, a storage device in communication with the processor, a diagnostic routine that is executed by the processor, and a display device also coupled to the processor. The storage device may house a database that includes a library of vehicle information items. These vehicle information items include text items that may relate to several items, for example: 1) a fault that may be experienced by a vehicle under diagnosis; 2) a test that may be performed on the vehicle for the purpose of diagnosing the causes of the faults; or 3) a solution that may be used to correct the faults. Further, the vehicle information items may also include a library of picture items that correspond to the text items. The processor and its diagnostic routine function to examine the text items, access the data base of picture items, correlate the text items to the picture items, replace the text items with at least a portion of picture items, and then display an image on the display device which includes at least one picture item.
Vehicle Diagnostic System Architecture
Computerized diagnostic systems are becoming pervasive in several industries. This is especially true of the automotive industry, in which computers are increasingly relied upon for the running, maintenance, and repair of motor vehicles. Computerized diagnostic systems rely upon external and internal computers to assist technicians in diagnosing problems with vehicles, as such systems receive, analyze, and provide data feedback to and from computers in vehicles to better diagnose problems.
Diagnostic systems for vehicles use platform products, data providers, and stand-alone software to run their analyses.
As illustrated in
The vehicle analyzer hardware 11 may include a test lead boom 12, including a plurality of test leads and sensors adapted to be connected to various points of an associated vehicle 4, and signal processing and conditioning hardware 13 for interfacing the test lead boom 12 to the processor 14.
The processor 14 may be one or more processors, such as a general-purpose processor and/or a digital signal processor. Other types of processors are also possible for use with the diagnostic systems platform 10.
The input/output components 15 are coupled to the processor 14 and facilitate a user's interaction with the diagnostic system platform 10. As such, the input/output components 15 may allow the user to select vehicle identification items, such as text items relating to faults, tests, and/or solutions, and view text and picture items. Thus, the input/output components 15 might include a data input device 18 with at least one button, dial, or key as input mechanisms, and a display device 19 as an output mechanism, for instance. Exemplary data input devices 18 for the diagnostic system platform 10 include a keyboard, a mouse, a stylus, a pointer, and/or a popup keyboard. Exemplary display devices 19 might include a monitor, screen, projector, or other types of displays. Moreover, the data input device 18 and the display device 19 may be integrated together in a handheld device, such as a PDA or cell phone. The diagnostic system platform 10 may also comprise other and/or additional or fewer input and/or output components than those shown in
Also, the diagnostic system platform 10 is typically provided with a storage device 20, which may include one or more of a number of different types of data and storage devices, such as RAM, ROM, a CD-ROM drive, a floppy drive, a hard drive, a memory stick or other storage devices. The diagnostic system platform 10 may include program software (not shown), which may be resident in the storage device 20 or which may comprise a stand-alone software package stored in an external storage device. As shown in
In one embodiment of a diagnostic system replacing text with pictures, the storage device 20 is in communication with the processor 14 and contains a database of vehicle information items (see
The library of picture items 24 may contain component pictures, factory procedure pictures, animations, symbols, characters, icons, sounds, colors, other graphics and/or edits thereof. Picture items 24 have a method of identification associated with them such as meta-tags, allowing picture identification and picture searching. Moreover, other picture items 24 may be downloaded to the library of picture items 24 and stored in the storage device 20.
The storage device 20 communicates with the processor 14, and the processor 14 executes a diagnostic routine 16. The diagnostic routine 16 may communicate with the vehicle 4 and diagnose faults. Additionally, the diagnostic routine 16 may replace at least a portion of the text items 23 with picture items 24. Moreover, the diagnostic routine 16 and processor 14 may replace a portion of picture items 24 with different picture items 24. The display device 19, which is coupled to the processor 14, may display vehicle information items after the diagnostic routine 16 is executed.
The diagnostic routine 16 may contain instructions for i) recognizing text items 23 in the storage device 20; ii) replacing text items 23 with picture items 24; iii) prompting the user to select which text items 23 they would like replaced; and/or iv) causing the display of picture items 24 with or without portions of text items 23. The diagnostic routine 16 may alternatively contain other and/or additional or fewer instructions than those mentioned herein. The diagnostic routine 16 may be implemented in hardware, or firmware, or alternatively, may be stored in the storage device 20 as computer instructions that are executable by the processor 14 (e.g., software).
One aspect of a typical diagnostic system is that it permits a fault-based diagnosis of a vehicle. In such a fault-based mode of operation, the system presents the user with a menu of problems indicated, e.g., by symptoms or service codes, and the user selects those problems which are pertinent to the vehicle under test. Based upon the selected faults, the system then presents the user with a list of tests to be performed to diagnose the cause or causes of the faults. The tests are listed in the order in which they would most likely be effective in diagnosing the vehicle faults, based upon the manufacturer's information and previous repair and diagnosis experience with the type of vehicle being analyzed.
Once the vehicle is identified, in an exemplary diagnostics system, the user could begin a typical diagnosis by selecting certain buttons or text items on a screen page. For instance, in an exemplary screen page 39, as shown in
A standard list of symptoms 40 is possible because vehicles use common technology. They each have mechanical, ignition, fuel, and computer components that function in roughly the same manner. Other more specific symptoms may be assigned to one or more of the symptoms from the main symptom list. For example, a specific symptom of “Vehicle Dies When Taking a Right Turn” will fit under a less specific symptom of “Vehicle Dies at Idle/Deceleration/Braking.” The tests to diagnose the condition, however, are generally the same. A standard list of symptoms is preferably used because it provides a consistent interface and diagnostic philosophy for all vehicles, and promotes technician and service writer familiarization.
The user/technician selects one or more of the listed symptoms 40 that are exhibited by a vehicle under test, as determined from an interview with the vehicle owner, for example. Based upon the symptom or symptoms selected, the screen page 39 displays a list 42, specific to the vehicle under test, of possible causes of the symptom or symptoms selected, as well as a counterpart list 42′ of test procedures to be performed to check for those causes. The test procedures are listed in the order of the probability or likelihood that the test will be successful in diagnosing the cause of the selected symptom or symptoms, this ranking being shown in
Vehicle Diagnostic System Operation
Because a standard list of faults may be used to describe most possible symptoms exhibited by an apparatus or vehicle, pictures items may be used as a substitute for text items in an exemplary diagnostics screen pages, like the one shown in
A method 50 for operating the diagnostic system platform 10 and replacing text items 23 with picture items 24 is shown in
Regardless of the process employed to convert the text items 23 to picture items 24, the method 50 begins with step 52, wherein the vehicle diagnostic system 2 communicates with the vehicle 4 via vehicle analyzer hardware 11. The processor 14 and diagnostic routine 16 then diagnose faults according to the vehicle's make and model. This fault information is transferred to the vehicle's storage device 20 for later access.
In step 54, the diagnostic test items (information relating to faults, solutions, or test results) located in the storage device 20 are examined, recognized, and appreciated either by the diagnostic routine 16 executed by the processor 14, or by a developer. Next, in step 56, a determination is made as to whether a picture item 24 may be substituted for a text item 23. This may be accomplished automatically by the diagnostic routine 16 (executed by the processor 14) or by the decision of a computer programmer, developer, or user. If the diagnostic routine 16 makes this determination, it may do so by first accessing a database of picture items 24 located on the storage device 20 that correspond to text items 23 also stored on the storage device 20. If a picture item 24 exists that corresponds to a text item 23, then the picture item 24 may be substituted for a text item 23, as shown in step 60. Alternatively, a developer may download, edit, or create a new picture item 24 that that corresponds to the text item 23, which then may be substituted for the text item 23. However, if no corresponding picture item 24 exists or is created for a particular text item 23 and thus may not be substituted (or may be confusing if one is substituted), then the text item 23 should be retained, as shown in step 58.
In another embodiment, the diagnostic routine 16 may access the database of picture items 24 located on the storage device 20 that correspond to text items 23, and then may bring up corresponding picture items 24 and cause a prompt on the display device 19 for a developer or user to choose whether or not to substitute a particular picture item 24 for a text item 23. For each text item 23 to be replaced, the developer or user may choose whether or not to adopt these changes by entering a command into the data input device 18. Further, the diagnostic routine 16 may also be adapted to prompt the developer or user to adopt changes for each screen page (e.g., screen page 39) being replaced, instead of each text item 23 replaced.
In other embodiments, the diagnostic routine 16, may function to cause the display device 19 to prompt the developer or user to display both text items 23 and picture items 24 simultaneously, to toggle between text items 23 and picture items 24, to download additional picture items 24 to the storage device 20, to bring up all corresponding picture items 24 by selecting a text item 23 by entering a command into the data input device 18, or to bring up a text item 23 after selecting a picture item 24.
Once the determination of whether each text item 23 is to be replaced or maintained occurs, then a display device 19 should display the screen page (e.g., screen page 39) with the picture items 24 and/or text items 23, as shown in step 62. This concludes the method 50, which may be executed for the entire diagnostic system platform 10, including all vehicle information items, such as individual tests, solutions, information relating to faults, test results, or portions thereof.
One type of screen page that contains text items 23 that may be replaced with picture items 24, at least partially, is an engine diagnostics screen page. For example,
If the ohms measurement does not comply with the set standards, then another “no” box 82 applies. The “no” box 82 will then trigger the display of the fault box 84, diagnosing the problem as a faulty connection or ignition. On the other hand, if another “yes” box 86 applies instead, then battery voltage box 88 is displayed. As shown in
Turning now to
In addition, the “yes” box 78 may be replaced by a uniform symbol, such as a check mark or a green light, as shown in the “yes” box 78′ of
In the case of reference manual box 76′, a symbol may be used to replace “intermittent,” while the text items 23 previously displayed in the reference manual box 76 may be abbreviated or modified to simplify the instructions. In the check ohms box 80′, picture items 24 are shown that may be used to replace text items 23. For instance, a “not” sign displayed over keys could tell the user to turn the ignition off, whereas a key and car sign could be used to indicate the ignition should be turned on. Again, picture items 24 may be shown on each screen page (e.g., screen page 39), either alone or along with text items 23. For instance, the range of ohms to be used may be shown in conjunction with a picture of an ohmmeter. In such a case, the numbers may even be integrated into the picture being displayed, e.g., the ohm reading could be indicated on the display of the ohmmeter in a static or animated format.
For further example, the battery voltage box 88 could be replaced by a number or an easily recognizable abbreviation and a light bulb to indicate that a test light is used. To indicate the results of the test light steps, a textual display of light on box 90 could be replaced with a glowing light bulb picture, as shown in the light on box 90′. Similarly, the light off box 92 could be replaced with a dim light bulb picture or a “not” sign over the light bulb picture, as shown in the light off box 92′.
Thus, the above embodiments illustrate just a few of the many ways in which the principles of the present application can be applied. These embodiments simplify the diagnostic procedure by replacing text items with picture items, which are more readily understood throughout the world. Moreover, picture items may be edited and updated continuously. Using picture items alone or in conjunction with text items reduces the risk of incorrect interpretation and mistake due to language barriers, jargon, and regional slang. Further, since translations into multiple languages can be costly, these principles provide a more cost effective solution to dealing with the above described problems. Thus, the better solution for combating language barriers is to translate text items into picture items so that service technicians can quickly read diagnostic screen pages and quickly ascertain the message being displayed.
Moreover, in view the wide variety of ways in which the principles of the present application can be applied, it should be understood that the illustrated embodiments are exemplary only, and should not be taken as limiting the scope of the present application. Accordingly, the claims should not be read as limited to the described order or elements unless stated to that effect. Therefore, all embodiments that come within the scope and spirit of the following claims and equivalents thereto are claimed as the application.
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