DE3407954A1 - Analysing recording and display system for motor vehicles - Google Patents

Abstract

An analysing recording and display system for the various operational values of a vehicle comprises a computer which is installed fixedly in the vehicle, a digital printer and a push-button key panel. The computer is connected to a speed measuring transducer and a fuel consumption measuring transducer. An input terminal can be connected to the computer. Specific operating states of the vehicle, such as for example its start-up, interruption of travel etc. are automatically printed out by the printer with an indication of the time. Further operational values can be called up and printed out by actuating the push-button key panel of the computer.

Description

The invention relates to an analytical record and Display system for motor vehicles with a display device for displaying at least the time and the current speed and with a recording device at which the speed is recorded as a function of time.

There are tachographs known in which the to be recorded Vehicle data recorded on tape or disk-shaped recording paper by means of a recorder will. It is known here to use different recording media for the different data to be recorded to use. These recording media are respectively taken from the tachograph every 24 hours, visually analyzed and the data read in Implemented digitally. This method of analysis is time-consuming, costly, and involves human risk Reading errors. It is also disadvantageous in this method that the number of recorded on the recording medium Information is limited.

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There is the task of the recording and display system to be trained in such a way that a variety of information can be drawn and displayed.

This object is achieved by the characterizing features of claim 1. Advantageous embodiments are can be found in the subclaims.

An exemplary embodiment is described below with reference to FIG Drawing explained in more detail, which is a schematic diagram of the System reproduces.

The system provides the driver with information regarding the driving status and allows a comprehensive recording of the driving data.

The system consists of five units, namely a computer 11, a visual display unit 12 in the form of a fluorescent one Display unit, a keypad 13, a printer unit 14 and a handheld terminal 15. The units

11 to 14 are always mounted in the vehicle. The unit 15 can be connected to and disconnected from the computer 11 are connected by a plug connection 19. The display unit

12 and the keypad 13 are mounted in the view or operating area of the driver, who on the display unit 12 functions to be displayed, such as the instantaneous time and fuel consumption Pressing keys on the keypad 13 can retrieve. The printer unit 14 can be remote or in the field of view of the Be mounted by the driver. The operating states are automatically recorded in the printer 14, with the labeled Recording paper fed into the printer automatically and is wound up when it has wandered through the printer's window.

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The hand-held terminal 15 is used to program the computer with the vehicle characteristics. These are:

Access code

Speed limit
Speed calibration
Metric or inch printing format
Registration number.

This information is stored in a non-erasable memory of the computer 11 supplied.

The computer has two operating states, namely a preferred and a non-preferred operating state. In the preferred operating mode, the driver can use all functions, including setting the Clock and the release of the computer. If the operating mode is not preferred, the user can use the following functions do not run:

Set the time, date, or year of paper advance

Release of the computer.

The computer receives input data from a speedometer 16, a fuel flow meter 17 and an internal crystal oscillator 18 which Timing pulses generated.

The keypad 13 has pushbuttons for calling up operating values, each pushbutton being assigned an LED display which remains lit until another function is selected.

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The functions that can be selected on the keypad 13 are as follows:

Driver code

Time and calendar including year elapsed time

Distance since the last computer release, costs in miles or kilometers

average fuel consumption Current fuel consumption Fuel consumption since the last computer release private or commercial use of the vehicle, interruptions in rest or charging.

Other possibilities are:

RELEASE - here the accumulated total values

printed out and the internal memory set to zero. The release becomes active after a Actuation for 2 sec. if the computer is switched to its preferred working state became.

INCH / METRIC CHOICE - this setting can be made by setting one of two switching states Slide switch Ι / Μ.

INPUT '- this enables numerical data input ot.

PAPER FEED - here the printer's paper feed is activated when the computer is in its preferred mode Working state was switched.

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The distance input from the speedometer 6 must be calibrated using the handheld terminal 15 as part of the programming. The speedometer has an 8-pole switch. The possible calibration range is from 100 to 3000 revolutions per kilometer with an accuracy of 1%.

All internal data is saved as long as the system is connected to the vehicle battery. the However, data entered manually via the handheld terminal remain stored, even if the system is controlled by the Auto ^ battery is disconnected because. this data is stored in a non-erasable memory. The display device 12 and the LED displays are darkened as soon as the vehicle lights are switched on. the Function legends are illuminated when the vehicle lighting is switched on. The respectively illuminated LED display indicates which function is currently being displayed by the display unit 12. No LED displays are assigned to the functions ENABLE, INPUT, PAPER FEED and METRIC / INCHES.

The printer 14 is connected to the computer 11 and prints out the information supplied to it. It is here preferably a thermal printer with a paper width of 38 mm that prints 16 columns with a 5 by 7 dot matrix per character. As already mentioned, the printer has an automatic rewinder on which the printed paper is wound after it passes through a viewing window Has. The supply voltage is fed to the printer from the computer 11. The printer is therefore directly from the Computer-controlled and, with the exception of paper change, it is operated automatically and therefore does not require any monitoring by the driver.

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The terminal 12 has an alphanumeric display device for 12 characters and a fully equipped push button panel which enables the entry of the digits 0 to 9 and the letters A to Z. Other pushbuttons are reverse (CR), line (SP) and delete (Shift 5).

The hand-held terminal 15 is switched on when the connection with the switched-on computer is established will. The computer checks the data connections (return CR) and then requests the user to enter data on.

The data is entered by pressing the alphanumeric keypad followed by data feedback by pressing the CR key. Valid answers are as follows:

ACCESS CODE - any one, two, three or four digit number:

SPEED LIMIT - any number between

0 and 411 km / h

'SPEED CALIBRATION - any number between

6 and 5631 revolutions per kilometer

METRIC INCHES - any sequence of characters beginning

with an I or an M

REGISTRATION NUMBER - up to 9 alphanumeric characters.

If the above information is entered, then delete the computer stores the previous data in its non-erasable memory and stores the newly entered data in it

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Data a. After successful programming the computer this erases his memory and is a "ready" signal to ^as s terminal. Normal operation can be resumed at this point by pulling out the connector of the terminal 15. The keypad 13 has keys 0 to 9. The following is a description of the functions obtained by pressing keys through 9. In the following description, the digits after the push button number indicate what happens when you press the button first and second. In the following list, the display format N means any number.

Nujnmeir! £ 11251_ jLL

12th

NNNN CODE

This key function displays the driver's code. The driver's code can be entered by the driver and is then output on the printer. For example, is displayed "Driver Code 1234", where 1234 is the entered driver code. Details of entering the Driver codes are described under ENTER below. The driver code function enables it also means that the user can set the calculator to their preferred mode of operation hires, if he

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knows the access code. To set the preferred working status, the access code is entered as the driver code. This should be the same as the access code programmed by the hand terminal in the computer. This access code will be not printed out or displayed, but this puts the computer in the preferred operating mode switched. This operating status is indicated by the flashing of the LED displays using the 0 and 1 keys. To reset the computer to the non-preferred operating mode a display function is set which is not CODE or TIME. If the non-privileged working state is not required, the access code should be entered through the hand-held terminal at the time of programming can be set to 0.

HlMIN TIME (1)

DATE-MONTH DATE (2)

NNNN YEAR (3)

This key function is used to display the time of day, the Date and year. The first time you press the button, the time of day is displayed on the computer. By pressing the following key

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the date and year and then again the time is displayed. The calculator delivers a display of the date and the year for 3 seconds each. and then returns to the time display return.

In the time display, the colon flashes at one cycle per second. In the In the date display, the colon is permanently light.

MIN: SEC ELAPSED TIME

H: MIN With this key function

the time is displayed which has expired since the computer was released for the last time. During the first hour of the display, the flashes Colon not. Then the display appears with a flashing colon.

The elapsed time does not increase when the ignition is turned off is.

NNN.N DISTANCE

NNNN

This display shows the distance covered in miles or kilometers depending on the setting of the switch I / M,

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This calculation is based on the total distance, which has been since the computer was released.

The display counts up to 999.9 miles or kilometers, whereupon then the lOtel unit disappears and the display continues becomes with 1000, 1001 etc. The maximum distance is 2000 miles or 3219 kilometers.

NNN.N

NNNN

"OFLO" MILEAGE COST

This display shows the total kilometer costs that have been incurred with operational use since the last time the computer was released. The cost of kilometers or miles are calculated from DISTANCE times COST / DISTANCE UNIT. The cost will be per mile or kilometer entered into the calculator using the SET key, the removal cost will be displayed up to a value of 999.9, whereupon the lOtel unit is deleted and the display continues at 10:00, which is the cost 1000.0 is equivalent to. If the distance

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costs exceed the value 6553.5, the display "OFLO" appears. The largest printed one The value of the removal cost is 65,535.0. In the case of higher travel costs, the printer prints "TOBIG".

NNN.N AVERAGE FUEL CONSUMPTION

This display shows the average fuel consumption in miles per gallon or liters per 100 kilometers depending on the position of the I / M switch. The calculation is based on the total distance traveled and the fuel consumption since the computer was last enabled became.

NNN. CURRENT FUEL NNN.N CONSUMPTION

This display shows the current fuel consumption Specified in miles per gallon or liters per 100 kilometers, depending on the position of the switch IN THE. The calculation is based on the current speed

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speed and the fuel flow rate. The lOtei specification is omitted if the metric Specification is made.

The polling sequence is 1 Hertz. The calculated values are a Smoothing algorithm supplied, which simulates a low-pass filter. The calculation is carried out using the distance which is traveled for a given number of fuel pulses will. If the vehicle is stationary, the value 0 is displayed within one second.

NNN.N FUEL CONSUMPTION

This display shows the fuel consumption in gallons or liters, depending on the position of the I / M switch. The calculation is based on the total fuel consumption since the last calculator was released.

The maximum specification is 200 gallons or 909.3 liters.

'Ρ "(1) PRIVATE OR COMMERCIAL C' (2)

"P" (3) This information tells the computer whether the

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current journey for private or business purposes serves. When the vehicle is started up and when the computer is switched on, it provides automatically based on commercial vehicle use. The first time you press button 8, the computer is set to private vehicle use. Subsequent key presses always switch between commercial and private Vehicle use switched. If a "P" appears on the display, this means that is a private use. If, on the other hand, the letter "C" occurs, the Calculator commercial use. You can switch between these two functions can be carried out at any time during a journey.

r "(1) REST OR CHARGING INTERRUPTIONS" d "(2)

"r" (3) etc. via this key the Computer informed whether the next stop is for a break or for loading or unloading, When starting up, the computer automatically switches to charging interruption. The first

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Pressing the key 9, the computer is switched to sleep, interruption. With the following Pressing a key switches the computer between charging interruption and rest interruption. A letter "r" on the display indicates that the computer has been suspended is switched while the display of "d" indicates that the computer is switched to charging interruption. These functions can be used at any time while driving change.

There are three additional function keys on the keypad. These consist of input, release and paper feed and are labeled X, Y and Z.

ENTER X

The functions that can be entered consist of the driver code, time and mileage or kilometer costs. The time can only be entered when the computer is in its privileged or preferred working state. To enter a number or time into the calculator, follow these steps to be carried out:

a) Selected function (code, time, date, year or miles or kilometer costs)

b) Depressing the ENTER key

c) Enter the number, starting with the left character

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(this should be done by pressing the numeric keys a maximum of 4 times) »

d) Press the ENTER key again

For example, if the mileage cost is 15.8 pence per mile with the calculator set to INCHES, then successive keys are pressed COSTS INPUT 15 8 INPUT

If a driver code was entered into the computer, then this code is immediately printed out by the printer 4.

RELEASE Y

If the computer is in its privileged working state, then, by pressing the RELEASE button for more than 2 seconds, all of the items saved in the computer are displayed Data of the trip are printed out by the printer 14 and the internal memory is set to zero.

PAPER FEED Z

If the computer is in the privileged or preferred working state, then pressing this button causes the printer to start printing paper with a Speed of about one line per 2 sec. to eject. This is useful for keeping paper in the printer to be able to quickly introduce a paper roll change.

The following describes the printouts in relation to the various functions.

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REGISTRATION NUMBER

The registration number is stored in non-erasable memory and can contain up to 9 alphanumeric characters, including spaces.

CALENDAR

The calendar year is not automatically switched to the next year if the computer is used for more than 11 years Was off for months.

The computer saves the total distance since the last release. The total distance is used for printing in divided into two parts, a commercially driven and a privately driven distance. The computer brings the associated memory up to date at the time a hold time is printed out. the The total distance since the vehicle was first put into operation is added to one or the other memory depending on whether it was switched to private or commercial use, using button 8.

DRIVING TIME

The time printed here is the same as the time printed.

elapsed time in relation to key 2 described with

with the exception that the specification is always in hours and minutes.

HOLD TIME

This time is the accumulated time during which the vehicle was not moved.

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A speed of under 3 miles per hour will be rated according to a holding time. Hold times of less than one minute are not recorded.

When a hold time is printed out, it does not record the time that has expired between the time of this printout and the time the vehicle was last stopped before it Expression. The maximum holding time is 255.59 hours.

SPEED LIMITATION

This information is used to print out the total time during which the vehicle drove faster than the speed, entered in the non-erasable memory. The internal resolution is 1 sec., I.e. those Times during which the vehicle remains for more than 1 sec. drove faster than the limit speed, are accumulated. The expression in hours and minutes is not rounded up, i.e. parts of minutes are used recorded. The maximum time that the speed limit can be exceeded is 255.59 hours.

NUMBER OF HOLDINGS

The total number of times the vehicle has stopped is recorded. A stop is counted when its hold time is captured.

AUTOMATIC RELEASE

If the distance traveled by the vehicle exceeds 2000 miles or if the fuel consumption exceeds Gallons, an automatic release is issued.

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leads. The work sequences that take place are the same as when the RELEASE button is pressed.

EFFECT OF RELEASE

In the case of an automatic release, the following named sum values are printed out. Before this takes place, all memory values are brought up to date. If the distance has exceeded 54 yards since the vehicle was started, a stopping time is printed out.

The following steps for the release take about 1 minute. This period of time is not accumulated. It is therefore possible that over a period of one minute the distance and fuel consumption are not recorded when the release function is performed and the vehicle is moving or the engine is running.

At the end of the release, the following data are set to zero;

All saved distances

fuel

Elapsed time

Hold time

Over speeding time Number of stops.

The function of the printer is described below. As already mentioned, this has a paper width of 38mm and prints out 16 columns with a 5x7 dot matrix per character. The printout takes place either automatically depending on the vehicle use or becomes effected via the keypad.

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Printouts that are made using the keypad are as follows:

Driver code

Paper feed

Total values of vehicle use (release function).

The printouts caused by the use of the vehicle are

Switch on ignition

Static run

Stop

Date change

Overflow of the memory for distance and fuel.

Driver codes are printed out when a driver code is entered. The format of the printout is 1 driver code NNNNl.

When the paper feed is operated, no characters are printed out. The paper advance is here faster than one line per 2 sec.

Total values of vehicle use:

A summary of the recorded Vehicle usage values printed out followed by 11 free lines. This is used to visually separate the Master data that is printed out for the next vehicle use. The following are used in the inch system Information printed out:

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IReg no Oracle CCC 1 lDate NN / NN / NNNN 1 Itime NN: NN 1 1 1 Itime Dist 1

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1 1

IDi st CNNNN.N MLSl IDi st PNNNN.N MLSl lKrfst NNN.N GALl lcons. NNN.N MPGl IRate NNN. Nl I Amount NNNNN. Nl l Drive NNrNNl IHaIt NN NNl I Too fast NN: NN1 lAnz.d.Stops NNNl 1 1

I All times shown 1 1i η h: mi η 1

Eleven free dividing lines

The various operating states of the vehicle are then printed out under "Time" and "Distance", as follows is described.

The format for a metric expression is structured in the same way with the exception that the information in kilometers and liters take place.

The time at which the ignition is switched on is 10 seconds. after switching on the ignition printed out and that only

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in the event that the ignition was switched off for at least 10 minutes beforehand. The format for this is:

II NN: NN 0.01

Here NN: NN is the time at which the ignition is switched on + 10 sec.

The duration of a stationary run is printed out if the vehicle has been running for more than 10 minutes. The format here is:

IM NNrNN 0.01 Here NN: NN is the duration of the stationary run.

A stop is detected 10 minutes after the ignition has been switched off. If the ignition is switched on again is before the 10 minutes have expired, then this time range is recorded as if the ignition had not been switched off Ten minutes after switching off the ignition, the following is printed out

IS NN NN NNNN.Nl

Here, NN NN is the time during which the ignition is switched off.

NNNN.N is the distance traveled in miles or kilometers since the time at which the switch-on of the ignition was printed out.

A date is printed out before the ignition switch-on time and the stop time are printed out if the date has changed since it was last printed. The format is

IDate: NN / NN / NNNN1

The distance and fuel memories have maximum values of 2000 miles and 200 gallons, respectively, should

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If one of these maximum memory values is exceeded, the computer automatically executes the RELEASE command the end.

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Claims (6)

An sp rüche Analyzing recording and display system for motor vehicles with a display device for displaying at least the time and the instant Speed and with a recording device, in which time-dependent operating data of the vehicle are recorded, thereby marked c h n e t that the recording device is a digital printer (14), stationary in the vehicle a computer (11), the digital printer (14) and a push button panel (13) are provided, with the computer (11) an input terminal (15) is releasably connectable and the computer (11) with a speed transducer (16) and a fuel consumption transducer (17) is connected. 2. Recording and display system according to claim 1, characterized in that the display device (12) is connected to the computer (11) is . 3. Recording and display system according to claim 1 or 2, characterized in that the computer (11) is in a privileged or preferred Working state is programmable in which the vehicle driver with regard to certain functions and information has access to the computer (11) and -2- 8776/143 -2- 2nd VfZr ζ Ί984 the computer (11) continues to be in a non-privileged one Working state is programmable in which the vehicle driver with regard to these functions and Information has no access to the computer (11) and this programming of the computer (11) is effected via the input terminal (15). 4. Recording and display system according to one of the claims 1 to 3, characterized in that the printer (14) when certain vehicle functions occur is automatically controlled by the computer (11) and these vehicle functions are time-related can be printed out. 5. Recording and display system according to one of the claims 1 to 4, characterized in that the printer (14) is controlled by the computer (11) responds to signals from the pushbutton panel (13) and here a summary of what is stored in the computer (11) Information is printed out. 6. Recording and display system according to one of claims to 5, thereby characterized in that the printer automatically generates a summary of the prints out values stored in the computer (11) if. a memory function in the computer (11) a maximum Memory value exceeds. -3-