GB2467323A - Engine speed monitor - Google Patents

Engine speed monitor Download PDF

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Publication number
GB2467323A
GB2467323A GB0901439A GB0901439A GB2467323A GB 2467323 A GB2467323 A GB 2467323A GB 0901439 A GB0901439 A GB 0901439A GB 0901439 A GB0901439 A GB 0901439A GB 2467323 A GB2467323 A GB 2467323A
Authority
GB
United Kingdom
Prior art keywords
data
monitoring device
vehicle
engine speed
engine
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Withdrawn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
GB0901439A
Other versions
GB0901439D0 (en
Inventor
Nicholas Anderson
Louis Anderson
Lewis Ford
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0901439A priority Critical patent/GB2467323A/en
Publication of GB0901439D0 publication Critical patent/GB0901439D0/en
Publication of GB2467323A publication Critical patent/GB2467323A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0236—Circuits relating to the driving or the functioning of the vehicle for economical driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
    • B60R11/0235—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes of flat type, e.g. LCD
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F02B77/084—Safety, indicating, or supervising devices indicating economy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • 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
    • G07C5/004—Indicating the operating range of the engine
    • 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
    • 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
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0005—Dashboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0033—Rear-view mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/005—Connection with the vehicle part
    • B60R2011/0056—Connection with the vehicle part using suction cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/005—Connection with the vehicle part
    • B60R2011/0063—Connection with the vehicle part using adhesive means, e.g. hook and loop fasteners
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
    • H04Q2209/47—Arrangements in telecontrol or telemetry systems using a wireless architecture using RFID associated with sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

A monitoring device 10 for a motor vehicle comprises a data recorder 12 adapted to record data transmitted from an engine management system and/or an exhaust emissions probe 20, a wireless transmitter 14 connected to the data recorder 12 for transmitting data and a display device 16 connected to the data recorder, the display device 16 being adapted to be mounted in vehicle for indicating to the driver of the 10 vehicle when the engine speed is in a predetermined range. The data is wirelessly transmitted to a computer, which compares the data with benchmark data. The invention also incorporates a kit which may be retro-fitted to the vehicle so that the driver may monitor engine performance and so drive more economically.

Description

Title: Monitoring Device for a Motor Vehicle The present invention relates to a monitoring device and particularly hut not exclusively to a monitoring device for monitoring the engine performance of a motor vehicle.
Background to the Invention
tt is known to provide an onboard computer as part of an engine management system, which monitors fuel use, engine speed, mileage and calculates the number of miles per gallon or kilometres per litre achieved from the vehicle. However, this information is not, at present, used to provide data for comparative analysis of vehicle engine performance to enable a driver to drive more ecconomically. It is also not provided in an easily readable format enabling a driver to improve driving performance.
It is an object of the invention to provide a monitoring device for a motor vehicle which reduces or substantially obviates the aforementioned problems.
Statement of Invention
According to the present invention there is provided a monitoring device for a motor vehicle comprising a data recorder adapted to record data transmitted from an engine management system and/or an exhaust emissions probe, a wireless transmitter connected to the data recorder for transmitting data and a display device connected to the data recorder, the display device being adapted to he mounted in a vehicle for indicating to the driver of the vehicle when the engine speed of the vehicle is in a predetermined range.
Advantageously, the data recorder can record engine output data and display this data on the display device. The data can also be transmitted to a remote location for analysis and comparison with data obtained from other similar vehicles.
Preferably an emissions probe for monitoring engine exhaust emissions is connected to the data recorder.
The emissions probe provides exhaust emission data and assists in identifying certain engine malfunctions.
The wireless transmitter may be a radio frequency identification device, which sends batched data to a receiver. Alternatively, the wireless transmitter is a GPS transmitter for transmitting real-time data.
Preferably the display device includes a printed circuit board, LCD screen and a plurality of LED's of different colours.
Each LED is preferably arranged to illuminate when the data recorder registers engine speeds within different predetermined ranges.
The intensity of light emitted by each of the LED's may increase with engine speed within each predetermined range.
Preferably a green LED illuminates when the engine speed is between 1000 and 2000 rpm.
Preferably an amber LED illuminates when the engine speed is between 2000 and 3000 rpm.
Preferably a red LED illuminates when the engine speed is above 3000 rpm. Errors may also he recorded and displayed incrementally every time that the engine speed exceeds 3000 rpm.
Preferably a wireless receiver is provided for receiving data from the wireless transmitter, the receiver being adapted to he connected to a computer for analysis of the data.
According to a second aspect of the present invention there is provided a kit for monitoring the engine performance of a motor vehicle comprising a data recorder adapted to record data transmitted from an engine management system, an exhaust emissions probe, a wireless transmitter connected to the data recorder for transmitting data and a display device connected to the data recorder, the display device being adapted to be mounted in a vehicle for indicating to the driver of the vehicle when the engine speed is in a predetermined range.
Preferably a wireless receiver is provided for receiving data from the wireless transmitter, the receiver being adapted to be connected to a computer for analysis of the data.
The kit is advantageous because it can be retro-fitted to existing vehicles. It is envisaged that multiple kits can be fitted to a fleet of vehicles and data from each of the kits can be transmitted to a central location, where the data obtained can he analysed. This will enable a fleet operator to identify if any of the fleet vehicles are being driven erratically or irresponsibly and will also identify engine emissions problems.
Description of the Drawings
For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 shows a schematic perspective view of a display device of the invention; Figure 2 shows a schematic perspective view of the monitoring device, with a receiver and vehicle driving console inset; Figure 3 shows a schematic perspective view of an exhaust emissions probe of the invention, with the probe shown in an exhaust pipe inset; Figure 4 shows a an exploded schematic perspective view of the display device of Figure 1; Figure 5 shows a schematic perspective view of the display device of Figure 1 attached to a vehicle dashboard; and Figure 6 shows a schematic perspective view of the display device of Figure 1 attached to a vehicle rear view mirror.
Description of Preferred Embodiment(s)
Referring firstly to Figures 1 and 2, a monitoring device for monitoring and displaying features of engine performance is indicated generally at 10. The monitoring device 10 includes a data recorder 12, a wireless transmitter 14 and a display device 16. The wireless transmitter 14 communicates wirelessly with a wireless receiver 18, which can be located, for example in a company's premises.
The receiver 18 is typically connected to a computer (not shown), which is programmed to analyse data received from the transmitter 14. The transmitter 14 is typically a radio frequency identification device, which transmits data in batches, or may be a UPS transmitter, which transmits in real-time.
Referring also to Figure 3, an emissions probe 20 is optionally connected to the data recorder 12 and transmitter 14. The emissions probe 20 is adapted to be disposed within an exhaust pipe 22 or exhaust manifold of a vehicle, for detecting the composition of exhaust gases emitted from the vehicle.
Referring in particular to Figures 1 and 4, the display device has a housing 24 including a base member 26, a facia 28 and a curved rear cover 30. A substantially domed recess 32 is formed in the base member 26 and forms a socket for receiving a complementary ball 34 mounted on a stem of a support 36. The support 36 receives a suction cup 38, which is connected to the support by means of a centrally disposed press-in stud 40. The suction cup 38 can be used to attach the display device to a surface, for example of a dashboard 39 of a vehicle, as shown in Figure 5. The ball 34 and socket 32 allow the facia 28 of the display device to he angled in any direction, as desired. Alternatively, the support 36 and suction cup 38 may be replaced with an adhesive pad. The display device 16 is shown in Figure 6 attached to the upper edge of a rear view mirror 54.
A liquid crystal display (LCD) 42 is mounted in an aperture in the facia 28 and is covered with a protective transparent screen 44. A printed circuit board 45 for controlling the operation of the display device 16 is mounted in the housing 24, behind the LCD 42. Left and right hand angled slots 46, 48 are disposed in the facia 28 on either side of the screen 44. A row of four LEDs 50 of different colours, namely, blue, green amber and red are mounted within each slot 46, 48. The LEDs are protected by transparent covers 52.
In use, the monitoring device 10 is fitted to a vehicle, as described above, with the data recorder 12 connected to the engine management system of the vehicle and optionally to the emissions probe 20. Data received from the engine management system and emissions probe is transmitted wirelessly to a remote location for computer anylysis. Furthermore, the display device 16 continually displays engine speed, otherwise known as the revs of the engine, by means of the coloured LEDs 50.
The blue LED illuminates when the display device 16 is in standby mode, the green LED illuminates when the engine speed is between 1000 and 2000 revs, the amber LED illuminates when the engine speed is between 2000 and 3000 revs and the red LED illuminates when the engine speed is above 3000 revs. As the rev count increases within any one of the predetermined ranges, the intensity of the LED indicating that range increases. For example, as the rev count increases from 1000 to 2500 revs, the green LED will illuminate dimly at first and increase to maximum intensity at 2000 revs, when the green LED will cut out and the amber LED will illuminate dimly and increase to substantially half of its maximum intensity at 2500 revs.
When the rev count exceeds 3000 revs, the red LED illuminates and an error is recorded and displayed on the LCD screen 42. The total error count for a journey is displayed on the screen and is indicative of the number of times that the driver has accelerated rapidly. The predetermined engine speed ranges can be set according to the type of vehicle being driven. The ranges described are suitable for a light diesel engined goods vehicle.
It is envisaged that the monitoring device 10 be fitted to all of the vehicles in a fleet, to enable a fleet operator to identify how a particular vehicle is being driven at a particular time by providing essential information such as time, date, and engine speed. The data can be analysed using computer software which compares the data for a particular vehicle with a benchmark set of data, which indicates when the vehicle is operating with optimum fuel efficiently. The data collected by the emissions probe 20 will also indicate the level of emissions and whether the engine is functioning as expected. This will assist in determining if the vehicle is operating to the manufacturers' recommendations. The results of the analysis can be used to identify drivers which drive most fuel efficiently ie "green drivers" and drivers which drive erratically in a least fuel efficient manner. Driver rewards could be awarded in a recognition scheme in order to maintain company "green" awareness and compliance.
The use of the monitoring device is intended to benefit the environment by reducing vehicle exhaust emissions and reducing fuel consumption. This has additional benefits for business including increased profitability of the business based on lower overheads (e.g. decreased fuel costs, less wear on engines, tyres, brakes etc), the potential to negotiate reduced insurance premium costs, potential benefits from government initiatives e.g. congestion charging fee reductions, emission zones fee reductions and early notification of potential mechanical problems -e.g. sub standard emissions identified from the emissions probe data.
Other benefits are that vehicles are driven more conscientiously and safely, leading lead to less road accidents. Traffic flow may he improved by reducing erratic driving.
The system strives to achieve these benefits by providing drivers with visual means to identify when they are accelerating too harshly by the rapidly intensifying display and change of colours. Drivers are also informed when they have over accelerated due to the error count and their performance can be remotely monitored by a third party, such as an employer.

Claims (15)

  1. CLAIMS1. A monitoring device for a motor vehicle comprising a data recorder adapted to record data transmitted from an engine management system and/or an exhaust emissions probe, a wireless transmitter connected to the data recorder for transmitting data and a display device connected to the data recorder, the display device being adapted to be mounted in a vehicle for indicating to the driver of the vehicle when the engine speed of the vehicle is in a predetermined range.
  2. 2. A monitoring device as claimed in claim 1, in which an emissions probe for monitoring engine exhaust emissions is connected to the data recorder.
  3. 3. A monitoring device as claimed in claim 1 or 2, in which the wireless transmitter is a radio frequency identification device
  4. 4. A monitoring device as claimed in claim 1 or 2, in which the wireless transmitter is a GPS transmitter for transmitting real-time data.
  5. 5. A monitoring device as claimed in any preceding claim, in which the display device includes a printed circuit board, LCD screen and a plurality of LED's of different colours.
  6. 6. A monitoring device as claimed in claim 5, in which each LED is arranged to illuminate when the data recorder registers an engine speeds within different predetermined ranges.
  7. 7. A monitoring device as claimed in claim 6, in which the intensity of light emitted by each of the LED' s increases with engine speed within each predetermined range.
  8. 8. A monitoring device as claimed in any one of claims 5 to 7, in which a green LED illuminates when the engine speed is between 1000 and 2000 rpm.
  9. 9. A monitoring device as claimed in any one of claims 5 to S, in which an amber LED illuminates when the engine speed is between 2000 and 3000 rpm.
  10. 10. A monitoring device as claimed in any one of claims 5 to 9, in which a red LED illuminates when the engine speed is above 3000 rpm.
  11. 11. A monitoring device as claimed in any preceding claim, in which a wireless receiver is provided for receiving data from the wireless transmitter, the receiver being adapted to be connected to a computer for analysis of the data.
  12. 12. A kit for monitoring the engine performance of a motor vehicle comprising a data recorder adapted to record data transmitted from an engine management system, an exhaust emissions probe, a wireless transmitter connected to the data recorder for transmitting data and a display device connected to the data recorder, the display device being adapted to be mounted in a vehicle for indicating to the driver of the vehicle when the engine speed is in a predetermined range.
  13. 13. A kit as claimed in claim 12. in which a wireless receiver is provided for receiving data from the wireless transmitter, the receiver being adapted to he connected to a computer for analysis of the data.
  14. 14. A monitoring device substantially as described herein with reference to and as illustrated in Figures 1 to 6 of the accompanying drawings.
  15. 15. A kit substantially as described herein with reference to and as illustrated in Figures 1 to 6 of the accompanying drawings.
GB0901439A 2009-01-29 2009-01-29 Engine speed monitor Withdrawn GB2467323A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0901439A GB2467323A (en) 2009-01-29 2009-01-29 Engine speed monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0901439A GB2467323A (en) 2009-01-29 2009-01-29 Engine speed monitor

Publications (2)

Publication Number Publication Date
GB0901439D0 GB0901439D0 (en) 2009-03-11
GB2467323A true GB2467323A (en) 2010-08-04

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ID=40469238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0901439A Withdrawn GB2467323A (en) 2009-01-29 2009-01-29 Engine speed monitor

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154524A (en) * 1984-02-01 1985-09-11 Steyr Daimler Puch Ag An arrangement for obtaining optimum operating values in commercial vehicles
US5020361A (en) * 1989-09-14 1991-06-04 Navistar International Transportation Corp. Engine overspeed sensing and readout
EP1050863A2 (en) * 1995-01-24 2000-11-08 Snap-On Equipment Limited Analytical tachometers
WO2005082674A1 (en) * 2004-02-26 2005-09-09 Scania Cv Ab Indicating ecological and economical driving of a vehicle
US7228211B1 (en) * 2000-07-25 2007-06-05 Hti Ip, Llc Telematics device for vehicles with an interface for multiple peripheral devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154524A (en) * 1984-02-01 1985-09-11 Steyr Daimler Puch Ag An arrangement for obtaining optimum operating values in commercial vehicles
US5020361A (en) * 1989-09-14 1991-06-04 Navistar International Transportation Corp. Engine overspeed sensing and readout
EP1050863A2 (en) * 1995-01-24 2000-11-08 Snap-On Equipment Limited Analytical tachometers
US7228211B1 (en) * 2000-07-25 2007-06-05 Hti Ip, Llc Telematics device for vehicles with an interface for multiple peripheral devices
WO2005082674A1 (en) * 2004-02-26 2005-09-09 Scania Cv Ab Indicating ecological and economical driving of a vehicle

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Publication number Publication date
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