JPH1086700A - Meter for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent forgetting of the write-in of the set value of the meter specification by a manufacturer in a memory. SOLUTION: A control part 31 to re-set the specification data on a meter from a car manufacturer in a memory 33 after the specification data on the meter of the delivery inspection of a plurality of meters 11-19 are set in the memory 33 is provided, and when the specification data on the meter of the delivery inspection are set in the memory 33, a specification non-set write-in part 37 writes the discrimination value to indicate that the specification data on the meter by the car manufacturer are not set in the memory 33 in the memory, and a buzzer 34 gives an alarm that the specification data on the meter by the car manufacturer are not set in the memory 33 based on the discrimination value written in the memory 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle meter for preventing a maker setting value of a meter specification from being forgotten to be written into a memory in the meter.

[0002]

2. Description of the Related Art In a vehicle meter, as shown in FIG. 6, a meter signal indicating various state quantities of a vehicle is input to a control unit 21. The control unit 21 controls these various meter signals. Thus, the speedometer 11 displays the vehicle speed during traveling of the vehicle, the rotation speed (tachometer) 13 displays the rotation speed (rotation speed) of the engine during traveling of the vehicle, and the temperature meter 15 displays the speed inside the vehicle. The temperature is displayed.

The fuel meter 17 displays the remaining amount of fuel such as gasoline, and the odometer 19 displays the mileage of the vehicle.

On the other hand, when meter various specification data such as an octopus cylinder number specification and a speed sensor specification are input to the control unit 21 as serial data from a serial data line, the control unit 21 stores the meter various specification data in a nonvolatile memory. 2
Store it in 3.

In this case, the nonvolatile memory 23 shown in FIG.
In the above, the memory area from address 0 to address X is divided into block A and block B, and the meter various specification data is stored in block A, and odd trip data indicating the mileage of the vehicle is stored in block B. I have.

Further, the meter specification data stored in the nonvolatile memory 23 can be rewritten to meter specification data input from an input unit (not shown). Therefore,
A plurality of types of meter specification data can be set by one type of vehicle meter.

For example, at the time of shipping inspection of a vehicle meter,
The meter various specification data stored in the non-volatile memory is inspected with the meter specific data for inspection, and thereafter, the car manufacturer re-sets the meter various specification data for each destination.

[0008]

However, in the case of a speed sensor specification, the shipment inspection specification setting data and the manufacturer specification setting data are similar. In this case, if the car maker forgets to reset the meter specification data, the vehicle meter may be shipped to the market without setting the car maker specifications because the difference in appearance is small.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle meter that can prevent forgetting to write a manufacturer's set value of a meter specification into a memory.

[0010]

The present invention employs the following means in order to solve the above-mentioned problems. The invention of claim 1 is
A plurality of meters for displaying various state quantities of the vehicle based on sensor signals from sensors mounted on the vehicle, and a first meter specification after setting the first meter specification data of the plurality of meters in a memory And a setting unit for resetting the second meter various specification data different from the data in the memory, wherein the first meter various specification data is set in the memory. A specification-unset writing unit that writes an identification value indicating that the second meter various specification data is not set in the memory, and a specification-unset writing unit that writes the identification value to the memory by the specification-unset writing unit. The gist is to provide an alarm unit for alarming that the second meter specification data is not set in the memory.

According to the present invention, when the first meter various specification data is set in the memory, the specification non-setting writing section indicates that the second meter various specification data is not set in the memory. The identification value is written to the memory, and the alarm unit
Since it is warned that the second meter various specification data is not set in the memory based on the identification value written in the memory by the specification non-setting writing part, the user forgets to write the second meter various specification data in the memory. Can be prevented.

[0012] In the invention according to claim 2, the alarm unit includes:
The gist is that the buzzer sounds with a buzzer sound that the second meter specification data is not set in the memory.

According to the present invention, the buzzer gives an alarm by a buzzer sound that the second meter various specification data is not set in the memory, thereby preventing the second meter various specification data from being forgotten to be written into the memory. can do.

[0014] In the invention according to claim 3, the alarm section includes:
The gist of the present invention is that the display unit warns by text display that the second meter various specification data is not set in the memory.

According to the present invention, the display unit gives a warning by a character display that the second meter various specification data is not set in the memory, so that it is possible to forget to write the second meter various specification data into the memory. Can be prevented.

According to a fourth aspect of the present invention, there are provided a plurality of meters for displaying various state quantities of a vehicle based on sensor signals from a sensor mounted on the vehicle, and a first meter specification data of the plurality of meters stored in a memory. And a setting unit for resetting the second meter various specification data different from the first meter various specification data to the memory after setting the first meter various specification data in the memory. Is set, a specification-unset writing unit that writes an identification value indicating that the second meter various specification data is not set in the memory to the memory; An alarm signal for alarming that the second meter various specification data is not set in the memory based on the identification value written in the memory is sent to an alarm unit provided outside. And summarized in that and a multicast controlling section.

According to the present invention, when the first meter specification data is set in the memory, the specification non-setting writing section indicates that the second meter specification data is not set in the memory. The identification value is written in the memory, and the alarm control unit is configured to output an alarm signal for alarming that the second meter specification data is not set in the memory based on the identification value written in the memory by the specification non-setting writing unit. Is sent to an alarm unit provided outside, so that the external alarm unit warns the fact, so that forgetting to write the second meter various specification data into the memory can be prevented.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a vehicle meter according to the present invention.

<First Embodiment> FIG. 1 is a block diagram showing the configuration of a vehicle meter according to a first embodiment of the present invention. In FIG. 1, a vehicle meter 1 includes a speedometer 11, a rotation speed meter 13, a temperature meter 15, a fuel meter 17, an odrip meter 19, a control unit 31, a nonvolatile memory 33,
A buzzer 34 and an input unit 35 are provided.

Each of the meters 11 to 19 displays various state quantities of the vehicle based on sensor signals from sensors mounted on the vehicle. The speedometer 11 displays the vehicle speed during traveling of the vehicle, and the rotation speed meter 13 displays the rotation speed of the engine during traveling of the vehicle.

The temperature meter 15 displays the temperature inside the vehicle. The fuel meter 17 displays the remaining amount of fuel such as gasoline, and the odometer 19 displays the mileage of the vehicle.

The nonvolatile memory 33 is a memory that retains the stored contents even when the power is turned off, and stores meter specification data input as serial data from a serial data line in a block A as shown in FIG. Store in the area. Note that odd trip data is stored in the block B as shown in FIG.

In the area of the block A, as shown in FIG. 2, as the meter various specification data, the vehicle manufacturing date, serial number (for car maker), speed sensor specification, engine speed specification (octopus specification), etc. It is remembered.

As the speed sensor specification, for example, 4
The pulse / rotation is stored. As the octopus specification, four cylinders are stored.

The input unit 35 is, for example, a keyboard, a mouse, etc., and inputs various kinds of meter specification data.
The control unit 31 controls each of the above units.

The control unit 31 is a central processing unit (CPU), and a specification non-setting writing unit 37, a specification non-setting determining unit 39,
An odometer meter control unit 41 and a buzzer control unit 43 are provided. The meter specification data input from the input unit 35 is set in the nonvolatile memory 33, and then the car manufacturer specification data is reset in the nonvolatile memory 33.

The specification non-setting writing section 37 stores the meter various specification setting data in the nonvolatile memory 33 when the non-volatile memory 33 sets the first meter various specification data, that is, the manufacturer specification data for shipping inspection. Area block A
The identification value for indicating that the car maker specification, which is the first meter specification data, has not been set, is written in an arbitrary area.

The specification non-setting determining section 39 reads the identification value written in the nonvolatile memory 33 by the specification non-setting writing section 37, and determines whether or not the car maker specification is not set based on the presence or absence of the identification value.

The buzzer control unit 43 as an alarm control unit
When the specification non-setting determining section 39 determines that the car maker specification has not been set, the buzzer 34 is controlled to sound. The buzzer 34 as an alarm unit warns that a car maker specification is not set in the nonvolatile memory 33 by a buzzer sound.

When the specification non-setting determination section 39 determines that the car maker specification is not set, the od trip meter control section 41 causes the od trip meter 19 to display that the car maker specification is not set.

Next, the operation of the thus constructed vehicle meter will be described with reference to the flowchart shown in FIG.

First, the specification non-setting writing section 37 sets an identification value for indicating that the car maker specification has not been set in the octopus specification area of the block A which is the meter various specification setting data area of the nonvolatile memory 33. As shown in FIG.
Write the number of cylinders “0”.

Normally, the number of cylinders is "4" or "6". When the number of cylinders is set to "0", it is understood that the car maker specification has not been set.

Next, the specification non-setting determining section 39 reads the number of cylinders “0” which is the identification value written in the non-volatile memory 33, and determines whether or not the number of cylinders “0” is the identification value. It is determined whether or not the setting has been made (step S11).

Further, when it is determined that the car maker specification has not been set, the control section 31 selects whether or not to generate a buzzer sound (step S13). To generate a buzzer sound, the buzzer control unit 43
4 is controlled to sound. The buzzer 34 warns that a car maker specification is not set in the nonvolatile memory 33 by a buzzer sound (step S15).

On the other hand, when the control section 31 does not generate the buzzer sound, the odrip meter control section 41 causes the odrip meter 19 to display a message indicating that the car maker specification is not set (step S17).

For example, a no-prog (abbreviation of NoProgram) may be displayed on a seven-segment display 51 as shown in FIG. 4 to warn that the car maker specification has not been set.

On the other hand, when the processing in step 17 is completed,
The meter operates (step S19). In step S11, when the car maker specification is set, a regular odd trip display (vehicle mileage display) is displayed.
(Step 23), and then Step S19
Proceed to processing.

Further, it is determined whether the process is completed (step 23). If the process is to be continued, the process proceeds to step S11.
Return to the processing of.

As described above, the fact that the car maker specification has not been set in the non-volatile memory 33 is warned by the buzzer sound or the odd trip display, so that it is possible to recognize that the car maker specification is not set in the non-volatile memory 33.

Therefore, it is possible to prevent forgetting to write the manufacturer setting value (car manufacturer specification setting data) of the meter specification into the non-volatile memory 33, thereby preventing a problem in the market.

The buzzer sound of the buzzer 34 may be sounded when the ignition is turned on.

<Second Embodiment> Next, a second embodiment of the vehicle meter according to the present invention will be described. FIG. 5 shows a configuration block diagram of a vehicle meter according to Embodiment 2 of the present invention.

The vehicle meter 2 has substantially the same configuration as that of the vehicle meter 1 of the first embodiment, but differs from the configuration of the vehicle meter 1 in that the buzzer 34 is not provided.

The bus 53 includes the vehicle meter 2, a first unit 55, a second unit 57, and a third unit 5.
9 are connected to each other, and data can be exchanged between the units and between the vehicle meter 2 and each unit, and constitute a local area network (LAN).

The first unit 55 and the second unit 5
7. The third unit 59 is an electronic control unit mounted on the vehicle, and the first unit 55 includes the buzzer 3
4 are connected.

According to the above configuration, when the car maker specification is not set due to the presence of the number of cylinders “0” as the identification value, the buzzer control section 43 in the control section 31 controls the buzzer for sounding the buzzer 34. An alarm signal is transmitted to the first unit 55 via the bus 53.

Since the first unit 55 controls the buzzer 34 based on the received buzzer alarm signal, the buzzer 34
Alerts by a buzzer that the car maker specification is not set in the nonvolatile memory 33.

Therefore, similarly to the first embodiment, forgetting to write the car maker specification setting data in the nonvolatile memory 33 can be prevented, and a problem in the market can be prevented.

Further, since the buzzer 34 provided in another unit alerts that the car maker specification is not set, there is an advantage that it is not necessary to provide the vehicle meter 2 with a special buzzer 34.

In the first embodiment, the identification value is
Although the number of cylinders is set to “0”, for example, the speed sensor specification is normally 4 pulses / rotation, but is set to 0 pulse / rotation as the identification value indicating that the car maker specification is not set. You may do it.

[0052]

According to the present invention, when the first meter various specification data is set in the memory, the specification non-setting writing section makes sure that the second meter various specification data is not set in the memory. Is written into the memory, and the alarm unit
Since it is warned that the second meter various specification data is not set in the memory based on the identification value written in the memory by the specification non-setting writing part, the user forgets to write the second meter various specification data in the memory. Can be prevented.

Further, since the buzzer gives an alarm by a buzzer sound that the second meter various specification data is not set in the memory, it is possible to prevent the forgetting to write the second meter various specification data into the memory. .

Further, since the display unit gives a warning by character display that the second meter various specification data is not set in the memory, it is possible to prevent forgetting to write the second meter various specification data into the memory. it can.

When the first meter various specification data is set in the memory, the specification non-setting writing section stores an identification value indicating that the second meter various specification data is not set in the memory. The alarm control unit externally provides an alarm signal for alarming that the second meter various specification data is not set in the memory based on the identification value written in the memory by the specification non-setting writing unit. Since the alarm is sent to the notified alarm unit, the external alarm unit warns of the fact, so that it is possible to prevent forgetting to write the second meter various specification data into the memory.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a vehicle meter according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of car manufacturer specification data stored in a memory area;

FIG. 3 is a flowchart showing the operation of the vehicle meter according to the first embodiment.

FIG. 4 is a view showing a car maker specification not set displayed on a 7-segment display.

FIG. 5 is a configuration block diagram of a vehicle meter according to a second embodiment of the present invention.

FIG. 6 is a configuration block diagram of a conventional vehicle meter.

FIG. 7 is a diagram showing meter various specification data and odd trip data stored in a nonvolatile memory.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Speed meter 13 Revolution speed meter 15 Temperature meter 17 Fuel meter 19 Odrip meter 21, 31 Control part 23, 33 Non-volatile memory 34 Buzzer 35 Input part 37 Specification non-setting writing part 39 Specification non-setting judgment part 41 Odrip meter Control unit 43 Buzzer control unit 51 7-segment display 53 Bus 55 First unit 57 Second unit 59 Third unit

Claims (4)

[Claims] 1. A plurality of meters for displaying various state quantities of a vehicle based on sensor signals from a sensor mounted on the vehicle, and first meter various specification data of the plurality of meters are set in a memory, and the first and second meter data are set. A setting unit for resetting second meter various specification data different from the first meter various specification data in the memory, wherein the first meter various specification data is set in the memory. When the specification non-setting writing unit writes an identification value indicating that the second meter various specification data is not set in the memory to the memory, the specification non-setting writing unit writes the identification value to the memory. A warning unit for warning that the second meter specification data is not set in the memory based on the identification value. 2. The vehicular meter according to claim 1, wherein the alarm unit is a buzzer that warns by a buzzer sound that the second meter specification data is not set in the memory. 3. The vehicular meter according to claim 1, wherein the alarm unit is a display unit that warns by text display that the second meter specification data is not set in the memory. . 4. A plurality of meters for displaying various state quantities of a vehicle based on sensor signals from a sensor mounted on the vehicle, and a first meter specification data of the plurality of meters is set in a memory, and the first and second meter data are set. A setting unit for resetting second meter various specification data different from the first meter various specification data in the memory, wherein the first meter various specification data is set in the memory. When the specification non-setting writing unit writes an identification value indicating that the second meter various specification data is not set in the memory to the memory, the specification non-setting writing unit writes the identification value to the memory. An alarm control unit that sends an alarm signal for alarming that the second meter various specification data is not set in the memory based on the identification value to an externally provided alarm unit. Vehicular meter, wherein the obtaining.