EP3220360A1 - Multiple-mode data acquisition system - Google Patents

Multiple-mode data acquisition system Download PDF

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Publication number
EP3220360A1
EP3220360A1 EP17160214.7A EP17160214A EP3220360A1 EP 3220360 A1 EP3220360 A1 EP 3220360A1 EP 17160214 A EP17160214 A EP 17160214A EP 3220360 A1 EP3220360 A1 EP 3220360A1
Authority
EP
European Patent Office
Prior art keywords
data
recorder
vehicle
trigger
memory
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP17160214.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
William Leisenring
Naga Puttagunta
Nathan Nantais
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Control Tec LLC
Original Assignee
Control Tec LLC
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
Priority claimed from US15/073,801 external-priority patent/US20160203655A1/en
Application filed by Control Tec LLC filed Critical Control Tec LLC
Publication of EP3220360A1 publication Critical patent/EP3220360A1/en
Withdrawn legal-status Critical Current

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    • 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
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G07C5/0858—Registering performance data using electronic data carriers wherein the data carrier is removable
    • 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
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers

Definitions

  • This disclosure generally relates to an electronic control unit data recorder, such as vehicle data recorder.
  • a vehicle data recorder is a recording device which is present in a vehicle and which receives information from various electronic control units which are present in the vehicle.
  • Each of the electronic control units controls one or more of the electrical systems or subsystems in the vehicle. Examples of some of the electronic control units which may be present in a vehicle include, but are not limited to, an airbag control unit, an engine control unit, a seat control unit, a speed control unit, and a transmission control unit.
  • the vehicle data recorder receives information from the various electronic control units, and stores the information in memory and/or transmits the information wirelessly to a remote location. This information can be used for various purposes, for example to assess the function and performance of a pre-production or post-production vehicle, or to manage a fleet of vehicles.
  • a typical vehicle data recorder that is sufficiently intelligent to receive proprietary information from a vehicle is configured to only work with a specific vehicle configuration, such as a specific make and model of vehicle which has a certain engine and transmission, certain emission systems, as well as certain electronic control unit hardware/software configurations.
  • the vehicle data recorder has a configuration stored therein which dictates how the vehicle data recorder collects and processes data received from the electronic control units.
  • the configuration which is stored in the vehicle data recorder is vehicle-specific. Therefore, to manage a fleet of vehicles, where the fleet includes vehicles of various configurations such as various makes and models of vehicles, one must employ a plurality of different vehicle data recorders.
  • an electronic control unit data recorder which is automated and efficient.
  • an embodiment of the present invention provides an electronic control unit data recorder, such as a vehicle data recorder, which is configured to provide multiple data acquisition tools in a single piece of hardware by having data acquisition software that is capable of acquiring data in different modes.
  • a system for recording data from one or more electronic control units in one or more vehicles includes a data-recorder and a memory.
  • the data-recorder is suitable for communication with an electronic control unit of a vehicle.
  • the memory is in communication with the data-recorder.
  • the memory is used to store configurations of vehicles. The configurations are used to configure the data-recorder to communicate with the vehicle.
  • the memory is also used to store additional code used to configure data acquisition (DAQ) settings of the data-recorder to capture data from the vehicle at a first data-rate when a first trigger-signal transitions to a first state, and capture data from the vehicle at a second data-rate when a second trigger-signal transitions to a second state.
  • DAQ data acquisition
  • the data-recorder captures data simultaneously at the first data-rate and the second data-rate when the second trigger-signal transitions to the second state.
  • the data-recorder determines an on-board synthetic-data parameter based on sampled-data, and the first trigger-signal is based on the on-board synthetic-data parameter.
  • the second trigger-signal occurs a time-interval after the first trigger-signal.
  • the data-recorder determines statistical-data based on sampled-data, said statistical-data characterized as one of a minimum, a maximum, an average, a standard deviation, a variance, a signal-to-noise ratio, and a frequency, and the first trigger-signal is based on the statistical-data.
  • FIG. 1 illustrates a fleet management system 10 which employs a plurality of electronic control unit data recorders 12, hereafter the data-recorder 12, wherein each instance of the data-recorder 12 is identical and in accordance with an embodiment of the present invention.
  • Each instance of the data-recorder 12 contains code in its memory which provides, as shown in FIG. 1 , that the data-recorder 12 receives a plurality of configurations from one or more servers 14 and stores the configurations in memory.
  • Each of the configurations which is received and stored in the memory of the data-recorder 12 relates to, for example, a different vehicle configuration, wherein the configuration is specific with regard to several factors, such as the make of the vehicle, the exact level of model year, as well as the exact engine, transmission, emission systems, and electronic control unit hardware/software, etc. embodied in the vehicle.
  • the code stored in the memory of the data-recorder 12 provides that thereafter the data-recorder 12 can be interfaced with a vehicle 16 (in FIG. 1 , the vehicles 16 are identified with "Vehicle 1 ", "Vehicle 2 ", !Vehicle N ", thereby indicating that each of the vehicles can be of a different configuration (i.e., a different configuration with regard to the make of the vehicle, the exact level of model year, as well as the exact engine, transmission, emission systems, and electronic control unit hardware/software, etc. embodied in the vehicle), and the data-recorder 12 receives information from the vehicle 16 which allows the data-recorder 12 to identify the exact configuration of the vehicle 16.
  • the data-recorder 12 effectively selects one of the configurations stored in memory to use in connection with data collection and processing vis-à-vis the electronic control units of the vehicle 16.
  • the data-recorder 12 may also store in memory a default configuration which can be used whenever the data-recorder 12 is unable to identify the exact configuration of a given vehicle.
  • the code stored in the memory of the data-recorder 12 can be configured such that the data-recorder 12 receives information from the vehicle 16 which allows the data-recorder 12 to identify the exact configuration of the vehicle 16 and then based on the identification, the data-recorder 12 retrieves the correct configuration from the one or more servers 14 and stores the configuration in memory for subsequent use in connection with data collection and processing vis-à-vis the electronic control units of the vehicle 16.
  • reference numeral 14 can refer to any appropriate source for the configurations, such as one or more remote servers, a USB port on the data-recorder 12, RAM of the data-recorder 12, a memory card (such as an SD card) of the data-recorder 12, etc. Regardless, preferably thereafter the data-recorder 12 receives information from the vehicle 16 which allows the data-recorder 12 to identify the exact configuration of the vehicle 16. Based on the identification, the data-recorder 12 subsequently uses the correct configuration in connection with data collection and processing vis-à-vis the electronic control units of the vehicle 16.
  • the code stored in the memory of the data-recorder 12 provides that once the data-recorder 12 selects a configuration, the data-recorder 12 thereafter collects data from various electronic control units and processes the data pursuant to the configuration.
  • the configuration also dictates what data is stored by the data-recorder 12, as well as also possibly what data is transmitted by the data-recorder 12 to a remote location.
  • the code stored in the memory of the data-recorder 12 provides that the electronic control unit data recorder can communicate with the server(s) 14 and dynamically update at least one of its stored configurations, thereby providing a data-recorder 12 having a dynamic configuration.
  • FIG. 2 provides a high level diagram of the data-recorder 12, including the code 20 which is stored in the memory 22 of the data-recorder 12, wherein the code is in accordance with a preferred embodiment of the present invention with other embodiments being entirely possible.
  • a preferred embodiment of the present invention provides that the code 20 which is stored in memory 22 preferably includes configuration retrieving and storing code 24, which provides that the data-recorder 12 receives a plurality of configurations from one or more servers 14 (see FIG. 1 ) and stores the configurations in memory 22.
  • the code 20 which is stored in memory 22 also preferably includes vehicle analyzing and configuration selection code 26, which provides that the data-recorder 12 receives information from a vehicle 16 (see FIG.
  • the data-recorder 12 which allows the data-recorder 12 to identify the exact configuration of the vehicle 16. Thereafter, based on the identification, the data-recorder 12 effectively selects one of the configurations stored in memory 22 to use in connection with data collection and processing vis-à-vis the electronic control units of the vehicle 16.
  • the code which is stored in memory also preferably includes additional code 28, including data acquisition code, which additionally dictates and controls the operation and functionality of the data-recorder 12.
  • the data-recorder 12 in addition to the memory 22 and code 20 stored therein, the data-recorder 12 also includes one or more processors 30 as well as additional components 32 which are relevant to the operation and functionality of the data-recorder 12.
  • FIGS. 3-5 provide flowcharts regarding the automated configuration deployment, management, selection, error-handling and configuring of the data-recorder 12 (and each instance of the data-recorder 12 shown in FIG. 1 ), and are self-explanatory.
  • the code 20 which is stored in the memory 22 of the data-recorder 12 is configured such that the data-recorder 12 robustly performs automated vehicle data acquisition and management.
  • conventional methods depend on the user to physically setup the system and then deploy it. This type of system is then not robust with regard to any changes that may occur in its test environment which would result in the acquisition of non-useable data.
  • the memory 22 of the data-recorder 12 contains additional code 28. Some of that additional code 28 is further described with reference to FIG. 6 .
  • This additional code provides that the data-recorder 12 is configured to acquire data, as well as contains code for data management, data transfer, data acquisition settings, a diagnostic system and preferably more.
  • the additional code may include what may be called the "Management Layer” 50 which runs as a program stored in the memory of the data-recorder 12, and additional code which may be called the "Data Acquisition Layer” 54.
  • the Management Layer 50 is configured to have the flexibility to be uploaded remotely from the server 14 via an internet connection 56 either in a manual or automated fashion.
  • the data-recorder 12 may also be in communication with other I/O 58, and may be connected to a heads up display or display device 60 as well as a local computer 62.
  • Management Layer 50 includes code which is configured to provide the following:
  • the memory 22 of the data-recorder 12 contains additional code 28 relating to the acquisition of data, data management, data transfer, data acquisition settings, a diagnostic system and preferably more.
  • the additional code 28 is configured such that the data-recorder 12 is capable of acquiring data simultaneously for many different use cases or modes. These consist of, but may not be limited to the following:
  • the additional code 28 may configure the system 10, or more specifically the data-recorder 12, to acquire or capture sampled-data in any combination of the above described use cases or modes a) - m).
  • the additional code 28 may operate aspects of the DAQ layer to configure data acquisition (DAQ) settings of the data-recorder 12 to employ a combination of modes c), d), f), and/or g) to capture data from the vehicle 18 at a first data-rate (e.g. low-speed data acquisition at 1Hz) when a first trigger-signal transitions to a first state (e.g. key-on to key-off), and capture data from the vehicle at a second data-rate (e.g. high-speed data acquisition at 100Hz) when a second trigger-signal transitions to a second state (key-off to key-on, or engine-off to engine-running).
  • a first data-rate e.g. low-speed data acquisition at 1Hz
  • a first trigger-signal transitions to a first state e
  • the system 10 may be configured to record only engine-coolant temperature at a relatively low sample-rate (e.g. - 1 Hz, i.e. 1 second sample interval) until the status of the vehicle ignition-key transitions (e.g. key-off to key-on) and continue low frequency sampling of engine-coolant temperature while the system 10 simultaneously records at a relatively high sample-rate (e.g. - 100 Hz, i.e. 10ms sample interval) multiple relatively high-speed signals files and snapshots such as engine-air-flow-rate and/or fuel-injector duty-cycle, the sampling of which may be initiated based on unique trigger conditions.
  • a relatively low sample-rate e.g. - 1 Hz, i.e. 1 second sample interval
  • a relatively high sample-rate e.g. - 100 Hz, i.e. 10ms sample interval
  • multiple relatively high-speed signals files and snapshots such as engine-air-flow-rate and/or fuel-injector duty-cycle, the sampling of
  • the system 10 may be further configured to record / sample additional signals for a prescribed time-interval after a particular trigger-event.
  • Trigger-event examples include a high-speed data pre/post around a check-engine light coming on or the engine stalling, and snapshot examples would be a diagnostic test result or a transmission shift time after a transmission shift occurs.
  • the additional code 28 may operate aspects of the DAQ layer to configure data acquisition (DAQ) settings of the data-recorder 12 to employ a combination of modes a) and e) to configure the data-recorder 12 to capture data simultaneously at the first data-rate and the second data-rate when the second trigger-signal transitions to the second state.
  • DAQ data acquisition
  • e data acquisition
  • the additional code 28 may operate aspects of the DAQ layer to configure data acquisition (DAQ) settings of the data-recorder 12 to employ a combination of modes b) and h) to configure the data-recorder 12 to process data to determine an on-board synthetic-data parameter based on sampled-data. Then instead of basing the first-trigger-signal on a directly monitored signal, the first trigger-signal may be based on the on-board synthetic-data parameter. For example, when a predetermined combination of throttle-position and engine-speed is detected, the first trigger-signal may be generated
  • the additional code 28 may operate aspects of the DAQ layer to configure data acquisition (DAQ) settings of the data-recorder 12 to employ modes d) and/or k) to configure the data-recorder 12 to generate the second trigger-signal a time-interval after the first trigger-signal.
  • DAQ data acquisition
  • the system 10 may be configured to initiate the sampling or collecting of data in response to a key-on to key-off event, and continue to record signals from a predetermined list for a predetermined duration of time. This configuration may be useful evaporative emissions testing, for example.
  • the additional code 28 may operate aspects of the DAQ layer to configure data acquisition (DAQ) settings of the data-recorder 12 to employ mode j) to configure the data-recorder 12 to determine statistical-data based on sampled-data, where the statistical-data may be characterized as one or more of of a minimum, a maximum, an average, a standard deviation, a variance, a signal-to-noise ratio, and a frequency, the first trigger-signal is based on the statistical-data, and the like.
  • DAQ data acquisition
  • mode j mode j
  • system 10 may be configured to initiate the sampling or collecting of data in response to a key-off to key-on event, continue to capture data while the engine is warming up, and stop recording once the engine reaches a predetermined or normal operating temperature.
  • system 10 may be configured to calculate statistics during a drive-cycle and storing the statistics in memory. Then when the key is turned off, the statistics are recorded as a snapshot file.
  • Example statistics would be maximum observed catalyst temperature, average vehicle speed, time at idle, etc.
  • an electronic control unit vehicle recorder which is useable with a plurality of different types of vehicles has been described above, an electronic control unit vehicle recorder which is in accordance with an embodiment of the present invention may instead by configured for use with only one type of vehicle, but which is capable of acquiring or transmitting data in different modes.
  • vehicle data recorder as being the type of electronic control unit data recorder with which the present invention is utilized
  • present invention can be implemented in many other types of devices and systems.
  • the present invention can be used to manage a fleet of boats, a plurality of bridges, or really anything which is capable of being monitored and/or controlled by one or more electronic control units.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP17160214.7A 2016-03-18 2017-03-09 Multiple-mode data acquisition system Withdrawn EP3220360A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15/073,801 US20160203655A1 (en) 2011-01-18 2016-03-18 Multiple-Mode Data Acquisition System

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EP3220360A1 true EP3220360A1 (en) 2017-09-20

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EP17160214.7A Withdrawn EP3220360A1 (en) 2016-03-18 2017-03-09 Multiple-mode data acquisition system

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EP3621297A1 (en) * 2018-09-10 2020-03-11 Volvo Car Corporation System and method for handling a user's experience of a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8140358B1 (en) * 1996-01-29 2012-03-20 Progressive Casualty Insurance Company Vehicle monitoring system
US20120185111A1 (en) * 2011-01-18 2012-07-19 Control-Tec, Llc Multiple-mode data acquisition system
US20120185128A1 (en) * 2011-01-18 2012-07-19 Control-Tec, Llc Vehicle data recorder management layer software system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8140358B1 (en) * 1996-01-29 2012-03-20 Progressive Casualty Insurance Company Vehicle monitoring system
US20120185111A1 (en) * 2011-01-18 2012-07-19 Control-Tec, Llc Multiple-mode data acquisition system
US20120185128A1 (en) * 2011-01-18 2012-07-19 Control-Tec, Llc Vehicle data recorder management layer software system

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