JP2006098377A - Meter for vehicles - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a meter for vehicles, in which restrictions on area and space when mounting the meter is eliminated and concentration problems for driving run of vehicles is resolved by a minimal movement of a sight line in visual procedures of meters. <P>SOLUTION: In an analog-type meter for vehicles displaying a plurality of measured values with pointers, since a plural kinds of measured values are assembled so as to display through arbitrary switching, turning on or flashing on and off the luminescent elements indicating the displayed measured values on a dial plate with a single scale, even compact meter of small size with small dial plate dimension makes displaying of pointers to be distinguishable instantaneously, because of a single and simple scale display, and movement of sight line to many places becomes unnecessary, and because of a unit meter, fast recognition of a plurality of pieces of information is achieved through minimal movement of sight line. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a meter for vehicles such as automobiles and motorcycles, and more particularly, a vehicle capable of arbitrarily switching and displaying measured values of a plurality of vehicle engines such as water temperature, oil temperature, hydraulic pressure, and rotation speed with one pointer. For meter.

  Conventionally, as a vehicle meter, in addition to a speedometer, an engine tachometer, a fuel meter, a water temperature meter, etc. that are already installed in the vehicle, there are analog meters for measuring engine conditions during sports driving such as circuits in detail. . These analog meters are prepared for each type to be measured, and each is necessary depending on the application. For example, when measuring water temperature, oil temperature, oil pressure, fuel pressure, engine rotation, and supply pressure, it was necessary to attach a total of six types of meters. When multiple meters are installed in this way, the area of the installation location is widely required depending on the number of installations, space restrictions occur, the purchaser is burdened with high costs, and recognition during operation The act requires a line-of-sight movement to each of multiple meters, and it takes time and effort to perform confirmation work.Furthermore, the factor of lack of concentration on driving in the operation change from the driving state concentrated on driving to temporary recognition action It was with me.

  In order to solve such a problem, the prior arts of Patent Documents 1 to 4 shown below are known. The vehicle meter disclosed in the utility model registration No. 3017825 shown in Patent Document 1 is provided with a plurality of meter portions for analog display in one meter case provided with a mounting portion to the vehicle body. It is possible to provide a plurality of analog display meters in the installation space of one meter.

  Moreover, the multipurpose indicating instrument disclosed in Japanese Utility Model Publication No. 55-40390 shown in Patent Document 2 is a single instrument that also serves as a plurality of instruments, and a plurality of types of scales corresponding to a plurality of instruments. Are arranged on the same circumference on a single dial, and the pointer is configured to turn according to the scale of one selected instrument.

  Furthermore, the multi-display instrument disclosed in Japanese Patent No. 3152343 shown in Patent Document 3 is a single instrument that also serves as a plurality of instruments as in Patent Document 2, and a plurality of instruments corresponding to a plurality of instruments. The dial is provided on one dial, and a part of the plural scales is arranged radially outward of the pointer shaft from the other scales, and a short hand and a long hand are respectively provided to correspond to the scales. It is configured to conceal an unselected pointer when one of a plurality of instruments is selected and designated. All of these prior art patent documents are intended to save installation space and reduce the size of the meter itself.

  The display device drive circuit disclosed in Japanese Utility Model Publication No. 58-13296 shown in Patent Document 4 arranges detection events from various detection sensors for detecting the coolant temperature, oil level, oil pressure, etc. of the vehicle in a row. In addition, it is possible to individually select and display on a common display unit composed of a large number of display segments, and to display a detected event in which an abnormality has occurred with priority over others.

  Utility model registration No. 3017825   Japanese Utility Model Publication No. 55-40390   Japanese Patent No. 3152343   Japanese Utility Model Publication No. 58-13296

  However, in the above-described vehicle meter of Patent Document 1, since a plurality of meter portions for analog display are provided in one meter case, a driving portion such as a motor for driving the plurality of meters is required. The problem is that the meter itself is downsized and the cost is increased due to the increased number of parts.

  In the multi-purpose indicating instrument of Patent Document 2, a plurality of types of scales are arranged on the same circumference on a single dial plate. Therefore, when the number of display types is increased, the turning angle of the pointer becomes smaller. Since the display resolution of each type is low, there is a problem that subtle changes cannot be read.

  In the multi-display instrument of Patent Document 3, since the short and long hands are provided to cope with a plurality of scales, the structure of the driving unit is complicated, and the maximum deflection angle of the pointer is limited to provide a pointer concealing portion. There is a problem that happens.

  In the display device driving circuit of Patent Document 4, although a display is performed with a large number of display segments arranged in a row, it is impossible to read a subtle change in measured value unlike an analog meter. To solve this problem, a very large number of display segments are required, which is not a practical solution from the viewpoint of cost. The present invention solves such problems, minimizes line-of-sight movement during driving, and can quickly recognize a plurality of information with a single dial line-of-sight movement, reducing the area of the installation place and being inexpensive. The purpose is to provide an analog meter.

  According to claim 1 of the present invention, in the analog type vehicle meter for displaying a plurality of types of measurement values with a pointer, a plurality of types of measurement values on a dial having a single scale. It is solved by switching and displaying arbitrarily. According to claim 2, the plurality of types of measurement values light up or blink a light emitting element indicating the selected type from the back of the dial, and the selected types of measurement values are displayed on a single scale. It can be solved by displaying the pointer on the dial plate. According to the third aspect, during the display of the arbitrarily selected type of measured value, if another measured value exceeds a warning value set arbitrarily in advance, the display automatically switches to that display, and the light emission indicating the type The problem is solved by turning on or blinking the element and then returning to the display of the measurement value of the type selected in advance when the value falls below the warning value. According to the fourth aspect of the present invention, when a plurality of other measurement values exceed a warning value set in advance during the display of the arbitrarily selected type of measurement values, the plurality of types are automatically switched at regular intervals. The light-emitting element that indicates the type is turned on or blinked, and the light-emitting element that indicates the type that is not displayed is operated in reverse to the above operation, and then all types of measured values are below the warning value. It is solved by automatically returning to the display of the measurement value of the type selected in advance.

  According to claim 1 of the present invention, in an analog type vehicle meter that displays a plurality of types of measurement values with a pointer, a plurality of types of measurement values can be arbitrarily switched on a dial having a single scale. It is no longer necessary to install a single meter for measuring water temperature, oil temperature, oil pressure, fuel pressure, engine rotation, boost pressure, etc. By eliminating problems such as the cost burden of the purchaser, it has become possible to provide an analog meter with a low cost burden without being restricted by the area and space of the installation location. Furthermore, since the vehicular meter according to the present invention has a single scale in a driving state concentrated on traveling, even a small meter with a small dial area size has a limited dial area. Since it is a simple scale without complicated display such as displaying multiple scales of different ranges for displaying multiple types of measurement values, it is very easy to read and it is possible to determine the display instantly, and A single meter eliminates the need for line-of-sight movements to multiple locations, and by quickly recognizing multiple pieces of information with minimal line-of-sight movement, it is possible to prevent lack of concentration due to visual recognition of the meter, and safety during driving There is a great deal of contribution in

  According to claim 2, the plurality of types of measurement values are such that the light emitting element that indicates the selected type is turned on or blinking from the back of the dial, so that the dial has a single scale. This makes it possible to easily and instantly determine and recognize the type of measurement value currently displayed as a pointer.

  According to the third aspect, while the measurement value of the arbitrarily selected type is displayed, when another measurement value exceeds a warning value set arbitrarily in advance, the display is automatically switched to the display and the type is indicated. The light emitting element is turned on or blinking, and when it falls below the warning value, it returns to the display of the measurement value of the type selected in advance, so that there is an abnormality in the measurement value of the unselected type. Therefore, it is possible to always maintain the best engine condition and prevent the engine from being burdened in the driving state concentrated on traveling.

  According to the fourth aspect of the present invention, when a plurality of other measurement values exceed a warning value set in advance during the display of the arbitrarily selected type of measurement values, the plurality of types are automatically switched at regular intervals. The light-emitting element that indicates the type is turned on or blinked, and the light-emitting element that indicates the type that is not displayed is operated in reverse to the above operation, and then all types of measured values are below the warning value. Automatically returns to the display of the measurement value of the type selected in advance, so even if there are abnormalities in the measurement values of multiple types not selected, it can be detected instantly Therefore, it is possible to always keep the best engine condition and prevent the engine from being burdened in the driving state where the driving is concentrated.

BEST MODE FOR CARRYING OUT THE INVENTION

  Next, the present invention will be described in detail based on the embodiment shown in FIGS. FIG. 1 is a block diagram of a circuit of a vehicle meter according to the present invention, and FIG. 2 shows a front view of the vehicle meter according to the present invention as viewed from the dial side. A light emitting element group 1 f for indicating the type, a dial 7 composed of a single scale 9, a pointer 8 for indicating the scale 9, and a light emitting element 6 provided on the outer surface of the meter body 1. In the first embodiment of the present invention, it is composed of a meter body 1 made up of one meter case and a dial plate 7 made up of a single scale 9, and a plurality of types of measured values can be selected arbitrarily with a pointer 8. Displayed. The vehicular meter configured as described above will be described with reference to the block diagram of FIG. 1. In FIG. 1, reference numeral 1 is a block diagram of the inside of the meter body, and includes a microcomputer 1a, drivers 1b and 1c, an EEPROM 1d, a stepping motor 1e, It is composed of a light emitting element group 1f. The microcomputer 1a calculates the engine rotation pulse from the vehicle and the input signals from the water temperature sensor 3, the oil temperature sensor 4 and the pressure sensor 5 installed at appropriate locations of the engine, and passes through the driver 1b. The pointer 8 pivotally supported on the axis of the stepping motor 1e via the dial 7 shown in FIG. 2 is operated. At this time, the engine rotation pulse input to the microcomputer 1a, the signals from the water temperature sensor 3, the oil temperature sensor 4 and the pressure sensor 5 are sent to the operation switch 2 provided separately from the meter body. By switching, a plurality of types of measurement values can be arbitrarily selected and displayed on the dial 8 with the dial 7 having a single scale 9.

  In the second embodiment, as shown in FIG. 2, the dial 7 is provided with a light emitting element group 1f for indicating which one of a plurality of types of measurement values is selected, and a Tw indicator LED 1f-1 , Ow indicator LED1f-2, Pw indicator LED1f-3 is turned on or blinking from the back of the dial, and the type of the measurement value currently displayed on the dial 7 having a single scale 9 In the present embodiment configured to be able to instantaneously discriminate and recognize a plurality of types of measured values as water temperature, oil temperature, hydraulic pressure / supply pressure, and when the water temperature is selected, the Tw indicator LED 1f− 1, when the oil temperature is selected, the Ow indicator LED 1f-2 is turned on, and when the oil pressure / suppressed pressure is selected, the Pw indicator LED 1f-3 is turned on or blinked to indicate that it is selected. On the dial 7, the water temperature is indicated as WAT-T × 10 ° C., the oil temperature is indicated as OIL-T × 10 ° C., and the hydraulic pressure / supply pressure is indicated as PRES × 100 KPa and BOOST × 10 KPa. The range for the numerical value of scale 9 is shown. For example, when the water temperature is selected and the pointer 8 indicates 7 of the scale 9, it indicates that the temperature is 70 ° C. from the notation of WAT-T × 10 ° C. With this configuration, it is possible to display multiple types of measurement values even on a single scale, and display multiple types of measurement values within a limited dial area. Since there is no complicated display such as displaying a plurality of scales of different ranges, the display can be read instantaneously and the concentration is not hindered in the driving state where the user concentrates on driving.

  In the third embodiment, during the display of an arbitrarily selected type of measured value, if another measured value exceeds a warning value set arbitrarily in advance, the display automatically switches to that type and the type is indicated as an index. Any one of the light emitting element groups 1f to be turned on is turned on or blinked, and when it falls below the warning value, it returns to the display of the measurement value of the kind selected in advance. With this configuration, when there is an abnormality in a measurement value of a type that has not been selected, the display of the pointer is automatically switched and any one of the light emitting element groups 1f that indicates the type of the measurement value is turned on or Because it blinks, it becomes possible to immediately know the abnormality of the engine condition, and it is possible to always maintain the best engine condition and prevent the engine from being burdened in the driving state concentrated on driving. .

  In the fourth embodiment, during the display of arbitrarily selected types of measured values, when other measured values exceed a warning value set arbitrarily in advance, the plurality of types are automatically set at regular intervals. In addition to switching and displaying, any one of the light emitting element groups 1f indicating the type is turned on or blinking, and any one of the light emitting element groups 1f indicating the type not displayed is operated in reverse to the above operation, and then When all types of measured values fall below the warning value, the display automatically returns to the previously selected type of measured values, so there was an abnormality in the multiple types of measured values that were not selected. Even in this case, as in the third aspect, it becomes possible to instantly know the abnormality of the engine condition, and always maintain the best engine condition in the driving state that concentrates on the driving, In which it is possible to prevent that give the burden.

  The light emitting element 6 shown in FIG. 2 emits light when the warning value of the engine speed set in advance is arbitrarily set, and indicates that the engine is in an overspeed state, and alerts the driver. The purpose of this is to prevent the burden on the engine and to prevent damage to the engine. By providing it together with the vehicle meter of the present invention, the best engine condition is always maintained in the driving state where it is concentrated on driving. Thus, it is possible to provide a vehicle meter that can prevent the engine from being burdened.

  The operation of claims 3 and 4 described above will be described using the flowcharts shown in FIGS. 3 to 6 and Table 1 shown below. Note that the flowcharts of FIGS. 3 to 6 are continuous, and are divided into FIGS. 3 to 6 for the convenience of display, and are shown by A, B, C, D, and E shown in each flowchart. Each flowchart is connected by a symbol.

1. The display timer Tc, the previous warning flag, the Rw flag, the Tw flag, the Ow flag, the Pw flag, and each calculation result of the RAM 1a-2 in the microcomputer 1a are set to “0”. After that, each warning value Rw, Tw, Ow, Pw and the display type selected in advance are read from the EEPROM 1d. (S1)
2. The engine rotation pulse from the outside and the input signals from each sensor (water temperature sensor 3, oil temperature sensor 4, pressure sensor 5) are measured. (S2)
3. The measured data is calculated, the result is compared with each warning value, and each warning flag is set or reset. (S3 to S22)
4). Next, it is confirmed whether any one of the Tw flag, the Ow flag, and the Pw flag is set. (S23) If all the flags are “0” (No in S23), the process proceeds to step S31 described later, and if any one of the Tw flag / Ow flag / Pw flag is “1”, the process proceeds to step S24. Compare with previous warning flag.
5. If there is no difference between the previous warning flag and each flag (Tw flag, Ow flag, Pw flag) (No in S24), the process proceeds to step S49 described later. If there is a difference (Yes in S24), the process proceeds to step S25, and the previous warning flag number is compared with the current warning flag number.
6). If the current number of warning flags is decreasing (decreasing in S25), the process proceeds to step S59 described later, and if increasing (increasing in S25), the process proceeds to step S26.
7). In step S26, it is determined whether or not there is a previous warning flag. If “Yes” (Yes in S26), the process proceeds to Step S36 described later. If “No” (No in S26), the process proceeds to Step S27.
8). In step S27, the priority order is changed according to the priority order described in Table 1, and in step S28, the calculation result of the first priority order is set as display data. In step S29, the indicator LED display pattern is set such that the priority No. 1 blinks and the others are turned on and the lighting warning flag is “0”.
9. In step S30, a display timer is started, and the process proceeds to step S44. If the process proceeds to “No” in step S23, the display priority order is cleared in step S31. In step S32, the calculation result of the display type selected in advance is set as display data, and in step S33, the type of the indicator LED display pattern is set to ON and the others are set to OFF. Thereafter, the display timer is stopped, Tc is reset (S34 / S35), and the process proceeds to step S44.
10. Next, when the process proceeds to “No” in step S24, if the display timer has not elapsed for 5 seconds in step S49, the process proceeds to step S53, and the calculation result of the first priority is used as display data. In step S54, the indicator LED display pattern is set so that the priority number 1 blinks, the others are turned on, and those without a warning flag are turned off, and the process proceeds to step S44.
11. If "Y" is reached in step S49, the presence or absence of the second priority type warning is determined in step S50. If "Yes", the display priority is set according to the priority order described in Table 1 in step S55. After the change, the calculation result of priority number 1 is set as display data in step S56, and in step S57, the indicator LED display pattern blinks priority number 1, the others are lit, and the indicator is turned off when the warning flag is "None" To go to step S58.
12 If “NO” in step S50, the process proceeds to step S51, and the calculation result of priority number 1 is set as display data as it is. In step S52, the indicator LED display pattern blinks priority number 1, and the others are lit and warning. Set the one with no flag off. In step S58, a display timer is started, and the process proceeds to step S44.
13. Next, when the process proceeds to “decrease” in step S25, if the warning flag with the priority number 1 is “1” in step S59, the process proceeds to step S66 and the display priority is changed according to the priority order described in Table 1. If it is determined in step S67 that the display timer has not exceeded 5 seconds, the process proceeds to step S44.
14 If the display timer has elapsed for 5 seconds or more in step S67, the display priority is changed in the priority order described in Table 1 in step S68, and the calculation result of the priority number 1 is set as display data in step S69. In step S70, the indicator LED display pattern is set to blink priority number 1, the others are turned on, and those without warning flags are turned off. In steps S71 to S73, the display timer is restarted and the process proceeds to step S44.
15. If “NO” is determined in step S59, the display priority is changed in the priority order described in Table 1 in step S60, and the calculation result of the priority number 1 is set as display data in step S61. In step S62, the indicator LED display pattern is set to blink priority number 1, the others are turned on, and those without warning flags are turned off. In steps S63 to S65, the display timer is restarted and the process proceeds to step S44.
16. When the process proceeds to “Yes” in step S26, the display priority is changed in the priority order described in Table 1 in step S36. If it is determined in step S37 that the display timer has not exceeded 5 seconds, the process proceeds to “N”. If the display timer has exceeded 5 seconds, the process proceeds to “Y”. In step S38, the display order is displayed in the order of priority described in Table 1. The priority order is changed, and the calculation result of the first priority order is set as display data in step S39. In step S40, the indicator LED display pattern is set to blink priority number 1, the others are turned on, and the indicators without warning flags are turned off. In steps S41 to S43, the display timer is restarted and the process proceeds to step S44.
17. In step S44, the current warning flag (Tw flag / Ow flag / Pw flag) is stored as the previous warning flag, and the display data and the indicator display LED pattern are displayed in step S45 through the drivers 1b and 1c in the stepping motor 1e, Displayed on the light emitting element group 1f.
18. Finally, if there is an Rw flag in step S46, the process proceeds to “Y” (step S48), and the light emitting element 6 is turned on by the driver 1c. If “N” (step S47), the light emitting element 6 is turned off by the driver 1c. Let Thereafter, the process returns to step S2, and each step is repeated until the power is turned off.

  The vehicular meter of the present invention configured as described above is an analog type vehicular meter that displays a plurality of types of measured values with a pointer, and a plurality of types of vehicular meters on a dial 7 having a single scale 9. Since the measurement value is arbitrarily switched and displayed, and any one of the light emitting element groups 1f for indicating the measurement value to be displayed is lit or blinked, even a small meter having a small dial area, The simple and simple scale display allows you to instantly determine the display of the pointer, and since it is a single meter, there is no need to move the line of sight to multiple locations, and multiple lines can be moved with the minimum line of sight movement. Can be recognized quickly, and the lack of concentration can be prevented by visual recognition of the meter. In addition, a warning value can be arbitrarily set for each type of measurement, and even when the measurement value of the type selected arbitrarily is displayed, when the set warning value is exceeded, the measurement value is automatically displayed. Since any one of the light emitting element groups 1f indicating the type is turned on or blinked, it is possible to instantly detect the abnormality of the measurement value of the type not selected, always maintaining the best engine condition, It is possible to provide a vehicular meter that can prevent a burden and that can be used safely and reliably and that has an excellent effect in terms of practical use and safety. Is.

It is a block diagram of the circuit of the meter for vehicles of the present invention. It is the front view seen from the dial side of the meter for vehicles of the present invention. It is a flowchart showing the operation | movement procedure of this invention. It is a flowchart showing the operation | movement procedure of this invention. It is a flowchart showing the operation | movement procedure of this invention. It is a flowchart showing the operation | movement procedure of this invention.

Explanation of symbols

1 Meter body 1a Microcomputer 1b Driver 1c Driver 1d EEPROM
1e Stepping motor 1f Light emitting element group 1f-1 Tw indicator LED
1f-2 Ow indicator LED
1f-3 Pw indicator LED
2 Operation switch 3 Water temperature sensor 4 Oil temperature sensor 5 Pressure sensor 6 Light emitting element 7 Dial 8 Pointer 9 Scale

Claims (4)

  In an analog vehicle meter that displays multiple types of measured values with a pointer, the vehicle is characterized by arbitrarily switching and displaying multiple types of measured values on a dial with a single scale Meter.   The plurality of types of measurement values are lighted or flashed from the back of the dial with a light emitting element that indicates the selected type, and the selected types of measurement values are displayed on the dial consisting of a single scale. The vehicle meter according to claim 1, wherein a pointer is displayed.   While displaying the measurement value of the arbitrarily selected type, if another measurement value exceeds the warning value set arbitrarily in advance, the display automatically switches to that display, and the light-emitting element that indicates that type is lit or blinked. The vehicle meter according to claim 1 or 2, wherein when the value falls below the warning value, the display returns to the display of the measurement value of the type selected in advance.   While displaying the measurement value of the arbitrarily selected type, if other multiple measurement values exceed the warning value set arbitrarily in advance, the multiple types are automatically switched and displayed at regular intervals. The light-emitting element that indicates the type is turned on or blinked, and the light-emitting element that indicates the type that is not displayed is operated in the opposite direction to the above operation, and then all types of measured values are lower than the warning value. 4. The vehicle meter according to claim 1, wherein the meter automatically returns to the display of the measurement value of the type.

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