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WO2010000262A1 - A device for making diagnostic tests on a vehicle - Google Patents

A device for making diagnostic tests on a vehicle Download PDF

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Publication number
WO2010000262A1
WO2010000262A1 PCT/DK2009/000133 DK2009000133W WO2010000262A1 WO 2010000262 A1 WO2010000262 A1 WO 2010000262A1 DK 2009000133 W DK2009000133 W DK 2009000133W WO 2010000262 A1 WO2010000262 A1 WO 2010000262A1
Authority
WO
WIPO (PCT)
Prior art keywords
status
invention according
prior
sensor
sensors
Prior art date
Application number
PCT/DK2009/000133
Other languages
French (fr)
Inventor
Per Laursen
Original Assignee
Nijunge
Care2Wear
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nijunge, Care2Wear filed Critical Nijunge
Publication of WO2010000262A1 publication Critical patent/WO2010000262A1/en

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2205/00—Indexing scheme relating to group G07C5/00
    • G07C2205/02—Indexing scheme relating to group G07C5/00 using a vehicle scan tool
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
    • G07C5/0825—Indicating performance data, e.g. occurrence of a malfunction using optical means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/12—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time in graphical form

Definitions

  • the advantage of the present invention is that it uses the fact that modern mobile phones has a computer power sufficient to make it possible to run custom programs this converts the standard phone with the right software to a communication platform that together with a custom made OBD to Bluetooth adapter gives a system that provides a desired flexibility.
  • EP 1 606 503 is an example on the state of the art diagnostic system where the system has a tool for extracting information a further tool for compiling the data and yet a further mechanic PDA for getting the information to the mechanic, as explained in [0044], where as the present invention is using mobile phone technology the communication with
  • OBD/Bluetooth device becomes an option as well as communication via mobile net to the internet is made possible, further Mobile phone is available in many variants specially mad for rough environment and almost all mechanics has a mobile phone present for other communication and this makes it possible for the present invention to work in a basically other way where all data is at hand at all times as well as remotely accessible.
  • the typical use of diagnostic tools is separated into more actions first of all the interfacing with the car where the user most of all are interested in trying different scenarios with engine on or off speed- and even test drives,
  • the present invention is a very small OBD to Bluetooth adapter that have no problem in being installed and staying installed during test of any kind.
  • the mobile phone that can be placed in holder, hand hold or even in some cases momentary in the pocket during adjustment of engine or the like, this makes it possible to have the system at hand at any time and thereby providing a very flexible system and this flexibility is not possible by using a laptop computer or the like.
  • the next use is documenting and/or analysing data from the engine, normally this is a problem with hand held devices but the present invention allows the user to use any computer on the internet to access the data obtained via the mobile phone on a big screen and with unlimited saving and printing capabilities.
  • this particular feature makes it possible for road service technicians to get data from a car and further get instruction from technical personnel that are place in a office locality.
  • the invention relates to a system for analysing data from the on-board car computer also called the ECU (Engine computing unit), the system comprising an adapter, a communication device and an Internet server system.
  • the adapter is the only part of the system that actually needs to be in physically contact with the vehicle, this is done via the standard OBD socket, the connection from there on is wireless, the communication with the communication device is wireless and the communication between the communication device and the server is wireless. Further the communication with the ECU is done via a OBD standard such as OBD II and/or EOBD or any other standard that would be present.
  • the communication device is a standard cellular phone that are communicating with the adapter via a wireless so called Bluetooth connection.
  • the software that are used in the cellular phone could be made in a number of different standards but a standard such as JAVA will make it possible for the system to run on almost any standard phone. Also connections such as WIFI could be used.
  • the communication device is the central unit and is communicating the data that are pulled from the ECU either directly to the screen or in other cases further on to other means such as the internet server, where the communication device is a standard cellular phone it will communicate with the internet via GSM/GPRS/3G connection and will get updates, send data and in general work as a gateway from the car to the internet.
  • the communication device is also connected to a GPS device and thereby able to include the GPS coordinates to either the displayed data and/or to the data that are send to the internet server, in one example of this invention the GPS device is a wireless device connected to the communication device via Bluetooth.
  • Data is in general send to the internet server in two different ways either: as a data "snap shot” where the most resent data from the ECU is send to the Internet server, also the GPS coordinates could be send together with this snap shot if a GPS device is connected.
  • the data that are sent to the server system could contain but are not limited to
  • Freeze frame data including explanation of the data
  • data are streamed to the server over a period of time, to be able to monitor at least one sensor over time, further two or more sensors could be monitored simultaneously to be able to se engine functions over time.
  • the ECU is limited in response time this will make the data points for the sensors in mind closer and thereby the data more usable than if all available sensors are monitored at once.
  • the communication device is adapted to send any data that the communication device has obtained from any means to the internet server.
  • the streaming of data in the tele marked is very rational way to send data as the communication devices are strong in streaming data continually and the pricing is normally made per data amount not in online time.
  • the way to show the sensor data on the mobile phone screen is a list of the most resent obtained data and a possibility to scroll down this list in traditional manner.
  • the data of one sensor on a dial or other graphical means this could also be done for more than one sensors, the idea of the graphical view is to provide a clear view of the sensor values in mfnd this is especially important as the communication device can be operated under a test drive and here it is important to get the a good idea about the sensor value in a glanse.
  • the communication device is adapted to compare a measured sensor value (V) to a table of predetermined values (P 0 ) and at least one limiting value (P 1 ), so that the sensor is given
  • the sensors that are in the status or any critical state could be marked by colour or other means, in one example this is a change in background colour from normal white to black and change of font colour from black to yellow.
  • the indication of the state of the sensors are taken to the next level where the communication device is enabled to compare a measured sensor value (V) to a table of predetermined values (P 0 ) and at least two limiting values (P 1 and P2), so that the sensor is given
  • one example of marking the sensor values to give a good and intuitive understanding of the sensor values is to mark both status 1 and 2 sensors with an alternative background colour and to give status 1 sensors the font colour yellow and the status 2 sensors the font colour red.
  • limiting values Pi and P 2 both limit over and under the predetermined normal value P 0 and hereby that and deviation over and under P 0 is given equal significance in an further example of the invention this is done different and a upper limiting value are determined so that P 1H gives the limit to the positive side and a P 1H giving:
  • this issue is taken up and an invention where the communicating device is adapted to give a general sensor status (G) in 4 stages and where the sensor with
  • status values gives the possibility to graduate importance of the status, in this example of the invention it is estimated that a status 2 sensor is 5 times as important or bad for the overall picture as a status 1 sensor then all the communication device has to do is to add up the the status values giving a sum of values (sum) and number of sensors (sensors) that are compared, and where a threshold (T) is established as a percentage (t) of the "sensors"
  • the status values is differentiated from sensor to sensor so that it is possible to indicate that one sensor is more important than an other, in a even further example the status value is differentiated in regard to if the sensor is reading high or low to give a more intelligent reading of the general status of the engine.
  • the differentiation can here be made either per sensor or a sensor group such as O 2 sensors or temperature sensors.
  • a further example illustrates how the limiting sum of status values S 0 , S 1 and S 2 is variable and the implications is as :
  • the T values are integers
  • predetermined conditions are taken in mind such as measurements made with the engine turned off, in this situation measurements of the rpm and the airflow for example would show 0 and this would normally be taken as a error, when engine off is indicated for example 0 rpm is indicated as normal.
  • the read out of the short and long term fuel trims are extended to give a marking of whether these indicates that the engine is running to lean or to full
  • a general fuel trim stats is made and thus also a general lean/rich indication.
  • the communication device is adapted to count the number of times said adapter tries to connect to said ECU and fails, and where the consequence of said number of times exceeds a predetermined value, said communication device enables a function for sending communication data to said server.
  • One system is hereby not limited to use one server one communication device and used on one car, it is a valuable version of the invention to have several adapters and communication devices used on just as many cars and collecting all data from all these systems on one server system, the personnel that are using the server system are then able to look at all data at once.
  • the road service assistants has one adapter and phone with them when they encounter a vehicle they will send data retrieved from the ECU GPS etc and to the server system, a help desk or the like can the assist this road service assistant and others using the retrieved data.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a system for analysing data from the on-board car computer also called the ECU (Engine computing unit), the system comprising an adapter, a communication device and an Internet server system. Where the communications device is a standard mobile phone and the connection between the mobile phone and the adapter is a Bluetooth connection.

Description

A device for making diagnostic tests on a vehicle
PROBLEM / BACKGROUND OF THE INVENTION
Usually diagnosing tools have one or more of the following disadvantages
They are big and/or hard to handle in the car while driving
They are stand alone systems and thereby only accessible from inside the system
They are expensive
They relies on cables to connect to the car
This does that the known products are either based on a custom made computer and different tools to connect to the cars either simply a cable or some kind of wireless connection, typically these are rather expensive as they include computing and other hard ware as a complete product.
Further there are low cost products on the marked but these are limited to a very simple use, and even further there are standard PC programs that typically uses a laptop computer these also works as a stand alone systems.
The advantage of the present invention is that it uses the fact that modern mobile phones has a computer power sufficient to make it possible to run custom programs this converts the standard phone with the right software to a communication platform that together with a custom made OBD to Bluetooth adapter gives a system that provides a desired flexibility.
As seen in US 2008/0119981 a telephone can be used during diagnostics but only mentioned as a mean for communication voice (page 5 paragraph 1 line 7-11), it is here clear that even for a expert in the area the obvious use of a phone is restricted to be a mean for basic communication and not to be the central computing means. EP 1 606 503 is an example on the state of the art diagnostic system where the system has a tool for extracting information a further tool for compiling the data and yet a further mechanic PDA for getting the information to the mechanic, as explained in [0044], where as the present invention is using mobile phone technology the communication with
OBD/Bluetooth device becomes an option as well as communication via mobile net to the internet is made possible, further Mobile phone is available in many variants specially mad for rough environment and almost all mechanics has a mobile phone present for other communication and this makes it possible for the present invention to work in a basically other way where all data is at hand at all times as well as remotely accessible.
The typical use of diagnostic tools is separated into more actions first of all the interfacing with the car where the user most of all are interested in trying different scenarios with engine on or off speed- and even test drives, The present invention is a very small OBD to Bluetooth adapter that have no problem in being installed and staying installed during test of any kind. Further the mobile phone, that can be placed in holder, hand hold or even in some cases momentary in the pocket during adjustment of engine or the like, this makes it possible to have the system at hand at any time and thereby providing a very flexible system and this flexibility is not possible by using a laptop computer or the like.
The next use is documenting and/or analysing data from the engine, normally this is a problem with hand held devices but the present invention allows the user to use any computer on the internet to access the data obtained via the mobile phone on a big screen and with unlimited saving and printing capabilities.
It even allows for users not to be present at the same place but still having access to the same data at hand via the internet, this particular feature makes it possible for road service technicians to get data from a car and further get instruction from technical personnel that are place in a office locality.
DESCRIPTION OF THE INVENTION
The invention relates to a system for analysing data from the on-board car computer also called the ECU (Engine computing unit), the system comprising an adapter, a communication device and an Internet server system. The adapter is the only part of the system that actually needs to be in physically contact with the vehicle, this is done via the standard OBD socket, the connection from there on is wireless, the communication with the communication device is wireless and the communication between the communication device and the server is wireless. Further the communication with the ECU is done via a OBD standard such as OBD II and/or EOBD or any other standard that would be present.
In one example of the invention the communication device is a standard cellular phone that are communicating with the adapter via a wireless so called Bluetooth connection. The software that are used in the cellular phone could be made in a number of different standards but a standard such as JAVA will make it possible for the system to run on almost any standard phone. Also connections such as WIFI could be used.
The communication device is the central unit and is communicating the data that are pulled from the ECU either directly to the screen or in other cases further on to other means such as the internet server, where the communication device is a standard cellular phone it will communicate with the internet via GSM/GPRS/3G connection and will get updates, send data and in general work as a gateway from the car to the internet.
In a further example of the invention the communication device is also connected to a GPS device and thereby able to include the GPS coordinates to either the displayed data and/or to the data that are send to the internet server, in one example of this invention the GPS device is a wireless device connected to the communication device via Bluetooth.
Connected could in some cases also simply mean that the phone has a build in GPS.
Data is in general send to the internet server in two different ways either: as a data "snap shot" where the most resent data from the ECU is send to the Internet server, also the GPS coordinates could be send together with this snap shot if a GPS device is connected. In this example of the invention the data that are sent to the server system could contain but are not limited to
Error codes including explanation of the code
Freeze frame data including explanation of the data
VIN number
Sensor data
Revs per minute
Speed sensor
Engine coolant temperature
Oil temperature
Intake air temperature
Outside temperature
Oil pressure
Intake air pressure
Intake air flow (MAF)
O2 (Oxygen) sensors
Etc.
GPS position These data will be send as a bulk with the most resent data send,
In an other example data are streamed to the server over a period of time, to be able to monitor at least one sensor over time, further two or more sensors could be monitored simultaneously to be able to se engine functions over time. As the ECU is limited in response time this will make the data points for the sensors in mind closer and thereby the data more usable than if all available sensors are monitored at once.
In an other example of the invention the communication device is adapted to send any data that the communication device has obtained from any means to the internet server.
To be able to log the values coming from one or more sensors where the communication device is continually sending the data to the server is a very rational way to be able to analyse the data of a test over time, in this way you have the advantage of a small device while performing the test and the advantage of a large screen storing facilities printing and the like while analysing the data.
Further it should be noted that the streaming of data in the tele marked is very rational way to send data as the communication devices are strong in streaming data continually and the pricing is normally made per data amount not in online time.
Further the above-mentioned example leaves an opportunity to look at streaming the data while the server receives these, effectively this gives giving a remote reading of the sensor in the car. In an example of the invention the way to show the sensor data on the mobile phone screen is a list of the most resent obtained data and a possibility to scroll down this list in traditional manner.
In a further example the data of one sensor on a dial or other graphical means, this could also be done for more than one sensors, the idea of the graphical view is to provide a clear view of the sensor values in mfnd this is especially important as the communication device can be operated under a test drive and here it is important to get the a good idea about the sensor value in a glanse.
Yet again a further example of showing the data is to show a graph over time, here also one or more sensor values can be monitored, this fashion is in particular good when you have to compare more sensors and you are on test drive or the like where you have small breaks to compare the test results.
In one example of the invention the communication device is adapted to compare a measured sensor value (V) to a table of predetermined values (P0) and at least one limiting value (P1), so that the sensor is given
status 0 where V>(P0-Pi) and V<(P0+PO and .
status 1 where V<(P0-Pi) or V>(P0+Pi).
This will make an overview of the sensors and the state they are in a lot easier, it will simply lead the attention to a problematic sensor straight away. The sensors that are in the status or any critical state could be marked by colour or other means, in one example this is a change in background colour from normal white to black and change of font colour from black to yellow.
In an other example of the invention the indication of the state of the sensors are taken to the next level where the communication device is enabled to compare a measured sensor value (V) to a table of predetermined values (P0) and at least two limiting values (P1 and P2), so that the sensor is given
status 0 where V>(P0-Pi) and V<(P0+Pi)
status 1 where (P0+Pi)<V<(P0+P2) or (P0-Pi)>V>(P0-P2) and
status 2 where V<(P0-P2) or V>(P0+P2)
This extends the overview further and will give a natural response of sensors that are OK, sensors that should have some attention and last sensors that needs action as they give a signal that are very abnormal.
In this example of the invention one example of marking the sensor values to give a good and intuitive understanding of the sensor values is to mark both status 1 and 2 sensors with an alternative background colour and to give status 1 sensors the font colour yellow and the status 2 sensors the font colour red.
Further it is noted that the limiting values Pi and P2 both limit over and under the predetermined normal value P0 and hereby that and deviation over and under P0 is given equal significance in an further example of the invention this is done different and a upper limiting value are determined so that P1H gives the limit to the positive side and a P1H giving:
status 0 where V>(P0-PIL) and V<(P0+PIH) status 1 where (P0+PIH)≤V<(P0+P2H) or (P0-PIL)≥V>(P0-P2L)
status 2 where V< (P0-P2I-) or V>(P0+P2H)
These statuses of the sensors gives in them selves a good overview of the car but if you want to have a very quick view of the general status this will not do it you need a tool that will give you a total or general state, do you need to take action or can you safely drive on.
In a further example of the invention this issue is taken up and an invention where the communicating device is adapted to give a general sensor status (G) in 4 stages and where the sensor with
status 0 is given no value
status 1 is given the value 1
status 2 is given the value 5
The implementation of status values gives the possibility to graduate importance of the status, in this example of the invention it is estimated that a status 2 sensor is 5 times as important or bad for the overall picture as a status 1 sensor then all the communication device has to do is to add up the the status values giving a sum of values (sum) and number of sensors (sensors) that are compared, and where a threshold (T) is established as a percentage (t) of the "sensors"
General status 0 (no problem) when the sum is 0
General status 1 (abnormality) when the sum is over 0 but under T
General status 2 (problem) when the sum is over T General status 3 when there is a error code stored
The indication of what general status the engine has is in one example of the invention a so called smiley icon going. In many cases this picture is exactly what you need to know about a car that being it if you are the owner or daily user or the mechanical worker that are servicing the car or doing other work on the car.
Further in an example of the invention the status values is differentiated from sensor to sensor so that it is possible to indicate that one sensor is more important than an other, in a even further example the status value is differentiated in regard to if the sensor is reading high or low to give a more intelligent reading of the general status of the engine.
An example on where a high reading is more important than a low reading is intake or coolant temperature, if a coolant temperature is set a Po of 82 C0 then it is far more important that the temperature has rises to 100 C0 than if it has fallen to even 10 C0 , the same applies to intake temperature.
The differentiation can here be made either per sensor or a sensor group such as O2 sensors or temperature sensors.
An example on differentiation regarding the importance of the sensors is the importance of a high reading in the airflow and a low reading in the oil pressure where the high airflow could indicate a sensor error and where the drop in oil pressure is fatal.
A further example illustrates how the limiting sum of status values S0, S1 and S2 is variable and the implications is as :
sum of status 0 sensors are S0 sum of status 1 sensors are S1
sum of status 2 sensors are S2
and a sums of sensors (S0, Si and S2) are compared with predetermined thresholds for each status,
General status 0 (no problem) when S1-=T01 and S2-ST02
General status 1 (abnormality) when To_<Si<Tn and T02<S2<T12
General status 2 (problem) when Tu-SS1 and T12≤S2
General status 3 when there is a error code stored
In one example of the invention the T values are
Toi=4
T02=O
Tn=IO
Ti2=4
In a further example of the invention the T values are
Toi=2
T02=O
T11=S Ti2=2
Yet even Further, in one example of the invention predetermined conditions are taken in mind such as measurements made with the engine turned off, in this situation measurements of the rpm and the airflow for example would show 0 and this would normally be taken as a error, when engine off is indicated for example 0 rpm is indicated as normal. The indication of engine off could be made out from sensors such as if rpm = 0 airflow = 0 intake pressure =1 then most likely the engine is not running.
In one example of the invention the read out of the short and long term fuel trims are extended to give a marking of whether these indicates that the engine is running to lean or to full
The indication of the lean or rich engine behaviour is made so that
Lean indication when a fuel trim is positive
Rich indication when a fuel trim is negative
further in one example of the invention a general fuel trim stats is made and thus also a general lean/rich indication.
In one example of the invention the communication device is adapted to count the number of times said adapter tries to connect to said ECU and fails, and where the consequence of said number of times exceeds a predetermined value, said communication device enables a function for sending communication data to said server.
This feature makes it possible to diagnose why there are problems with the connection, in normal use where the connection to the ECU is made with no problems there are no use of the send extra date to the server and thus does not appear on the menu. In one example of the invention a multitude of systems according to the prior claims are connected to a multitude of vehicles and to one server system.
One system is hereby not limited to use one server one communication device and used on one car, it is a valuable version of the invention to have several adapters and communication devices used on just as many cars and collecting all data from all these systems on one server system, the personnel that are using the server system are then able to look at all data at once.
For example if the system are used in the road service business the road service assistants has one adapter and phone with them when they encounter a vehicle they will send data retrieved from the ECU GPS etc and to the server system, a help desk or the like can the assist this road service assistant and others using the retrieved data.

Claims

1. The invention relates to a system for analysing data from at least one on-board car computer comprising an adapter, a communication device and an Internet server system.
Said adapter being able to communicate with said at least one on-board computer.
Said communication device being able to communicate with said adapter and said Internet server.
2 An invention according to claim 1 wherein said communication device is a standard cellular/mobile phone
3 An invention according to any of the prior claims wherein said adapter is adapted for the OBD standard
4 An invention according to any of the prior claims wherein said adapter is communicating with the communicating device via Bluetooth.
5 An invention according to any of the prior claims wherein said communication device are communicating wireless with the Internet via GSM/GPRS/3G or other means and sending data to said internet server system.
6 An invention according to any of the prior claims wherein the communicating device is enabled for communicating with a wireless GPS unit and sending the position to said server.
7 An invention according to any of the prior claims wherein the communicating device is enabled to display all sensor data that are available by said OBD standard.
8 An invention according to claim 7 wherein said communication device is enabled to display OBD and/or other error codes provided by said on-board car computer.
9 An invention according to claim 7 or 8 wherein said communication device is enabled to display OBD and/or other Freeze frame data.
10 An invention according to any of the prior claims wherein said communicating device is enabled to display each sensor value as a dial.
11 An invention according to any of the prior claims wherein said communicating device is enabled to display at least one of said sensor values over time as a graph.
12 An invention according to any of the prior claims wherein said communicating device is enabled to compare a measured sensor value (V) to a table of predetermined values (P0) and at least one limiting value (Pi), so that the sensor is given
status 0 where V>(P0-Pi) and V<(P0+Pi) and .
status 1 where V<(P0-P_) or V>(P0+Pi).
13 An invention according to any of claims 1-11 wherein said communicating device is enabled to compare a measured sensor value (V) to a table of predetermined values (P0) and at least two limiting values (Pi and P2), so that the sensor is given
status 0 where V> (P0-P1) and V<(P0+Pi)
status 1 where (P0+Pi)≤V<(P0+P2) or (P0-Pi)>V>(P0-P2) and
status 2 where V< (P0-P2) or V>(P0+P2)
14 An invention according to any of claims 1-11 wherein said communicating device is enabled to compare a measured sensor value (V) to a table of predetermined values (P0) and at least two times two limiting values giving a high and low limiting value for each range (PiH, PiL, P2H and P2O/ so that the sensor is given
status 0 where V>(P0-PiL) and V<(P0+PiH)
status 1 where (P0+P1H)<V<(P0+P2H) or (P0-PiL)≥V>(P0-P2L)
status 2 where V<(P0-P2L) or V>(P0+P2H)
15 An invention according to any of claims 12-14 wherein said communicating device is adapted to give a general sensor status (G) in 4 stages and where the sensor with
status 0 is given no value
status 1 is given the value 1
status 2 is given the value 5
and a sum of values (sum) and number of sensors (sensors) are compared, and where a threshold (T) is established as a percentage (t) of the "sensors"
General status 0 (no problem) when the sum is 0 General status 1 (abnormality) when the sum is over 0 but under T
General status 2 (problem) when the sum is over T
General status 3 when there is a error code stored
16 An invention according to any of claims 12-14 wherein said communicating device is adapted to give a general sensor status (G) in 4 stages and where the sum of sensors in each status is:
sum of status 0 sensors are S0
sum of status 1 sensors are Si
sum of status 2 sensors are S2
and a sums of sensors (S0, S1 and S2) are compared with predetermined thresholds for each status,
General status 0 (no problem) when Si<TOi and S2-ST02
General status 1 (abnormality) when TOi<Si<Tn and T02<S2<Ti2
General status 2 (problem) when Tu-=S1 and Ti2<S2
General status 3 when there is a error code stored
17 An invention according to claim 16 wherein
T01=4 T02=0
TIl=IO T12=4
18 An invention according to claim 16 wherein
T01=2
T02=0
Tll=5
T12=2
19. An invention according to any of the prior claims wherein said communication device is adapted to repeatedly send the real time sensor value of at least one of said sensors
20. An invention according to any of the prior claims wherein said communication device is adapted to send any by said communication device obtained data to said internet server.
21. An invention according to any of the prior claims wherein read out of the short and long term fuel trims are extended to give a marking of whether these indicates that the engine is running to lean or to rich.
22.An invention according to any of the prior claims wherein read out of the short and long term fuel trims are extended to give a marking of whether these indicates that the engine is running to lean or to full so that when a fuel trim value is negative rich fuel mixture is indicated and when a positive fuel trim is indicated a lean fuel mixture is indicated.
23, An invention according to any of the prior claims wherein the communication device is adapted to count the number of times said adapter tries to connect to said ECU and fails, and where the consequence of said number of times exceeds a predetermined value, said communication device enables a function for sending communication data to said server.
24. An invention wherein a multitude of systems according to the prior claims are connected to a multitude of vehicles and to one server system
PCT/DK2009/000133 2008-06-09 2009-06-06 A device for making diagnostic tests on a vehicle WO2010000262A1 (en)

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DKPA200800793 2008-06-09

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CN108873866A (en) * 2018-07-12 2018-11-23 济南浪潮高新科技投资发展有限公司 A kind of transport column oil consumption monitoring method based on OBD equipment

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