JP2005003560A - Motor car measurement system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor car measurement system capable of eliminating input operation of an operator, preventing incorrect operation, and moreover capable of coping with full automatization, regarding the automatically measurement of exhaust gas etc., of the motor car running on a chassis dynamo device. <P>SOLUTION: The motor car measurement system comprises the vehicle information storage part 6 for storing vehicle information for each vehicle V of the motor car, the vehicle identification part 7 for identifying the vehicle V as a measurement target, and the vehicle information acquisition part 8 for acquiring the vehicle information of the vehicle V from the vehicle information storage part 6 identified by the vehicle identification part 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile measurement system capable of measuring performance related to exhaust gas discharged from an automobile engine.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an automobile measurement system has been developed that can measure various performances of an automobile automatically (unmanned) by running the automobile on a chassis dynamo device. For example, on a chassis dynamo device that measures components such as hydrocarbons (HC), nitrogen oxides (NO _x ), carbon monoxide (CO), carbon dioxide (CO ₂ ), etc., contained in automobile engine exhaust gas The automobile is driven according to a predetermined driving mode by an automatic driving device, and the exhaust gas discharged at that time is supplied to a gas measuring device equipped with a plurality of gas analyzers having different measurement principles, and each of the components is measured, Some of the measurement results are managed by a central information control device (automobile exhaust gas measurement management device).
[0003]
Further, recently, as shown in Patent Document 1, an apparatus that promotes automation of measurement by linking the automatic driving apparatus and the central information control apparatus has been developed.
[0004]
[Patent Document 1]
JP 2002-71523 A
[Problems to be solved by the invention]
By the way, in this measurement, vehicle information of a vehicle to be measured is indispensable. This vehicle information includes, for example, vehicle type, mission type, drive system (FF, FR, 4WD, etc.), vehicle weight, tire type, fuel type, etc. The vehicle information is confirmed and the vehicle information is input.
[0006]
However, with such a method, the input operation is complicated and it is difficult to completely prevent an input error. In addition to not being able to obtain a correct measurement result due to an input error, the vehicle jumps out by installing a 4WD vehicle on a 2WD chassis dynamo device, for example, by setting the FF / FR / 4WD incorrectly. May adversely affect the vehicle and the chassis dynamo device. Furthermore, it is necessary for the chassis dynamo device to drive and warm up the rotating drum before installing the vehicle to be measured. However, if the FF / FR / 4WD settings are incorrect, unnecessary rotating drums will be rotated, which is useless. Sometimes it consumes time and power.
[0007]
Further, in order to realize a system that fully automates from vehicle loading to measurement in the future, such a system that requires operator input as in the present situation cannot be used.
[0008]
Therefore, the present invention provides a vehicle measurement system that can automatically acquire vehicle information of a vehicle to be measured, thereby eliminating operator input work and preventing erroneous input, and in addition, capable of supporting full automation. It was intended to provide.
[0009]
[Means for Solving the Problems]
In other words, the vehicle measurement system according to the present invention is capable of performing, for example, automatic (unmanned) measurement related to exhaust gas of a vehicle traveling on a chassis dynamo device. A vehicle information storage unit that stores in advance, a vehicle identification unit that identifies a vehicle to be measured, and a vehicle information acquisition unit that acquires vehicle information of the vehicle identified by the vehicle identification unit from the vehicle information storage unit; It is characterized by having.
[0010]
If this is the case, the vehicle information of the vehicle to be measured can be automatically acquired without any human intervention, which saves the input effort and prevents input errors and increases the reliability of the measurement results. It becomes possible to raise. In addition, this makes it possible to construct an unmanned automatic vehicle carry-in system and an unmanned automatic test system that fully automate the process from carrying in a vehicle to measurement. In addition, since the vehicle information can be managed, the data of each vehicle can be centrally managed by linking with other maintenance records and exhaust gas data. Here, “every vehicle” means each individual vehicle.
[0011]
As a specific embodiment for identifying a vehicle, the vehicle identification unit receives and receives a vehicle identifier transmitted from a vehicle identifier transmission unit such as an ETC (Electronic Toll Collection System) attached to each vehicle. A vehicle that is configured to identify the vehicle to be measured by the vehicle identifier.
[0012]
As another specific embodiment for identifying a vehicle, the vehicle identification unit optically reads a vehicle identifier such as a barcode attached to each vehicle, for example, and becomes a measurement object based on the read vehicle identifier. Mention may be made of identifying vehicles.
[0013]
On the other hand, the aspect which does not have a vehicle identification part is also considered. In this case, the vehicle information storage unit is mounted on the vehicle. And what is necessary is just to comprise the said vehicle information storage part and vehicle information acquisition part of the vehicle used as a measuring object by wire or radio | wireless, and acquiring the vehicle information of the said vehicle.
[0014]
On the other hand, even in the same vehicle, there is information that may change dynamically, such as the type of fuel, the state of the tire, and the state of 2WD / 4WD. Therefore, in order to be able to cope with such dynamic information, it is preferable that part or all of the vehicle information is configured to be rewritable.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
The vehicle measurement system according to the present embodiment is for measuring the exhaust gas of a vehicle in a room called a test cell. As shown in FIG. 1, the chassis dynamo device 1 and a dynamo control for controlling the same. An apparatus 1a, an automatic driving mechanism 2, an automatic driving mechanism control apparatus 2a for controlling the apparatus 1a, an exhaust gas measuring apparatus 3, and a central information processing apparatus 4 are provided. In this embodiment, the chassis dynamo device 1 and the exhaust gas measuring device 3 are arranged in an underground bit provided in the basement of the test cell, and the dynamo control device 1a, the automatic driving mechanism control device 2a, and the central information processing device 4 are used as test cells. Although it arrange | positions in the measurement room provided adjacent, of course, the arrangement | positioning aspect of each apparatus is not restricted to this.
[0016]
The chassis dynamo device 1 is, for example, a single-shaft type, and includes a rotating drum 11 on which driving wheels of the vehicle V are mounted and a motor (not shown) that applies a load to the rotating drum 11. In this figure, the one for 2WD and FF vehicles is shown, but it goes without saying that a pair of rotating drums 11 may be provided on the front and rear sides so as to be compatible with 4WD, and it is needless to say that a two-shaft type may be used.
[0017]
The dynamo control device 1a controls the motor to control the driving load so that the vehicle V can travel in the same state as on the road. The dynamo control device 1a is configured by using a computer system including, for example, a CPU, a memory, and the like, and has a function capable of communicating control signals, data, and the like with each other.
[0018]
The automatic driving mechanism 2 is installed in the driver's seat of the vehicle V and includes a drive arm that mechanically drives an accelerator, a brake, a shift lever, a handle, and the like. And the said vehicle V is made to drive automatically on the chassis dynamo apparatus 1 by operating the said drive arm based on the control signal from the outside.
[0019]
The automatic driving mechanism control device 2a controls the automatic driving mechanism 2 to drive the vehicle V in a given desired driving mode. Like the dynamo control device 1a, the automatic driving mechanism control device 2a is configured by using a computer system including, for example, a CPU, a memory, etc., and can communicate control signals and data with each other. Have
[0020]
The exhaust gas measuring device 3 is equipped with a plurality of gas analyzers having different measurement principles, and can continuously measure each component such as HC, NO _x , CO, and CO ₂ contained in the engine exhaust gas separately. Is. In the present embodiment, CO, HC, NO, etc. per unit mileage are combined with the exhaust gas constant volume sampling device 5 that samples exhaust gas diluted in the atmosphere and samples the diluted exhaust gas as a sample gas at a constant volume. It is configured to be able to measure weight. The exhaust gas measuring device 3 includes a computer system configured using a CPU, a memory, and the like, and has a function of mutually communicating control signals, data, and the like with the outside.
[0021]
The central information processing apparatus 4 is a computer system including, for example, a CPU, a memory, a communication interface, a display, an input unit, and the like, and has a server function. Data is exchanged between the control devices 1a, 2a and the exhaust gas measurement device 3 via a network NT such as a LAN, and the overall control of the control devices 1a, 2a and the exhaust gas measurement device 3 is performed. And data management.
[0022]
Then, for example, by giving necessary information such as vehicle information and a driving mode to the central information processing device 4, the chassis dynamo device 1 and the automatic driving mechanism 2 are controlled comprehensively through the control devices 1a and 2a. As the vehicle V travels in a desired manner, the exhaust gas measurement device 3 operates to automatically measure the exhaust gas data. Further, the exhaust gas data and the travel data are centralized in the central information processing device 4. It is managed.
[0023]
The central information processing device 4, the control devices 1a and 2a, and the exhaust gas measurement device 3 are not necessarily physically dispersed as shown in FIG. 1, and a part or all of them are integrated. But of course.
[0024]
Under such a configuration, in the automobile measurement system according to the present embodiment, as shown in FIGS. 1 and 2, a vehicle information storage unit 6 that stores vehicle information for each vehicle V in advance, and a measurement target The vehicle identification unit 7 for identifying the vehicle V to be a vehicle information and the vehicle information acquisition unit 8 for acquiring the vehicle information of the vehicle V identified by the vehicle identification unit 7 from the vehicle information storage unit 6 are further provided.
[0025]
The vehicle information storage unit 6 is set, for example, in a predetermined memory area of the central information processing device 4, and as shown in FIG. 3, vehicle type, mission type, drive system (FF / FR / 4WD, etc.), vehicle weight, A plurality of pieces of vehicle information for each vehicle V indicating a tire type, a fuel type, and the like are stored in association with a vehicle identifier for identifying the vehicle V. Of the vehicle information stored in the vehicle information storage unit 6, information that may change dynamically, such as the state of fuel, tires, and 2WD / 4WD, can be obtained by input from the central information processing device 4 or the like. It is configured to be rewritable.
[0026]
The vehicle identification unit 7 is, for example, a single device provided in the test cell, receives the vehicle identifier transmitted from the vehicle identifier transmission unit 9 mounted on the vehicle V, and the vehicle to be measured by the vehicle identifier. V is identified and the vehicle identifier is transmitted to the central information processing device 4. The timing for receiving the vehicle identifier is, for example, when the measurement target vehicle V has been carried to a predetermined position in the test cell.
[0027]
For example, the central information processing device 4 is responsible for the function of the vehicle information acquisition unit 8. Based on the vehicle identifier transmitted from the vehicle identification unit 7, the vehicle information acquisition unit 8 obtains corresponding vehicle information from the vehicle information storage unit 6. To get. The timing for acquiring the vehicle information is, for example, when the vehicle V to be measured is installed on the chassis dynamo device 1.
[0028]
With such a configuration, when the vehicle V is carried into the test cell, the vehicle identifier transmitted from the vehicle identifier transmission unit 9 is received by the vehicle identification unit 7, and the vehicle to be measured is based on the vehicle identifier. V vehicle information information is automatically acquired without any human intervention. Therefore, it is possible to save the trouble of inputting the vehicle information and to prevent an input error, and it is possible to improve the reliability of various measurement results calculated based on the vehicle information. This also makes it possible to construct an unmanned automatic vehicle carry-in system and an unmanned automatic test system that fully automate the process from the loading of the vehicle V to the measurement.
[0029]
The present invention is not limited to the above embodiment.
[0030]
For example, as a vehicle identification unit, not only a vehicle identifier is received from a vehicle identifier transmission unit such as an ETC on-board unit mounted for each vehicle by radio waves, etc., and the vehicle to be measured is identified by the received vehicle identifier, A vehicle identifier such as a barcode attached to each vehicle may be optically read, and the vehicle to be measured may be identified by the read vehicle identifier.
[0031]
Further, for example, as shown in FIG. 4, when there are a plurality of test cells, vehicle information obtained from them may be managed by one central information processing device 4. In this way, a large-scale automobile measurement system can be constructed, and various data including vehicle information of each vehicle V can be centrally managed on a larger scale by linking with other maintenance records and exhaust gas data. be able to.
[0032]
In this example, the terminal information processing apparatus 10 is installed in each test cell, and the vehicle identification unit 7, the control apparatuses 1 a and 2 a, the exhaust gas measurement apparatus 3, etc. are connected to the center via the terminal information processing apparatus 10. The information processing apparatus 4 is connected. The operation from the terminal information processing apparatus 10 may change dynamically such as the fuel type, tire condition, 2WD / 4WD state, etc. in the vehicle information stored in the central information processing apparatus 4. Some are configured to be rewritable.
[0033]
Further, as shown in FIG. 5, for each vehicle V, a vehicle information storage unit 6 that stores vehicle information that is information of the vehicle V is mounted, and the vehicle information acquisition unit 8 configured by a single device. However, the vehicle information of the vehicle V may be directly connected to the vehicle information storage unit 6 of the vehicle V to be measured by wired or wireless connection. In such a case, the vehicle identification unit 7 is not necessary, and the configuration can be simplified, which is preferable for a relatively small system.
[0034]
Of course, the vehicle information storage unit, the vehicle identification unit, the vehicle information acquisition unit, etc., may be configured as dedicated independent devices, or set as other devices that can exchange data other than the central information processing device. It doesn't matter.
[0035]
In addition, the present invention can be variously modified without departing from the spirit of the present invention.
[0036]
【The invention's effect】
As described above in detail, according to the present invention, since vehicle information of a vehicle to be measured can be automatically acquired without any manual intervention, it is possible to save time and trouble of input and to prevent an input error. It becomes possible to increase the reliability of the result. In addition, this makes it possible to construct an unmanned automatic vehicle carry-in system and an unmanned automatic test system that completely automate from vehicle loading to measurement. In addition, since the vehicle information can be managed, the data of each vehicle can be centrally managed by linking with other maintenance records and exhaust gas data.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing an entire automobile measurement system according to an embodiment of the present invention.
FIG. 2 is a partial functional block diagram of the central information processing apparatus in the embodiment.
FIG. 3 is a data structure diagram schematically showing internal data of a vehicle information storage unit in the embodiment.
FIG. 4 is a schematic diagram showing an entire automobile measurement system according to another embodiment of the present invention.
FIG. 5 is a schematic diagram showing an entire automobile measurement system in still another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Chassis dynamo device V ... Vehicle 6 ... Vehicle information storage part 7 ... Vehicle identification part 8 ... Vehicle information acquisition part 9 ... Vehicle identifier transmission part

Claims (5)

In what can measure the exhaust gas etc. of the car running on the chassis dynamo device,
A vehicle information storage unit that stores in advance vehicle information that is information for each automobile vehicle;
A vehicle identification unit for identifying a vehicle to be measured;
An automobile measurement system comprising: a vehicle information acquisition unit that acquires vehicle information of a vehicle identified by the vehicle identification unit from the vehicle information storage unit. The vehicle measurement system according to claim 1, wherein the vehicle identification unit receives a vehicle identifier transmitted from a vehicle identifier transmission unit mounted for each vehicle, and identifies a vehicle to be measured by the received vehicle identifier. . The vehicle measurement system according to claim 1, wherein the vehicle identification unit reads a vehicle identifier attached to each vehicle and identifies a vehicle to be measured based on the read vehicle identifier. In those that can automatically measure the exhaust gas etc. of automobiles running on the chassis dynamo device,
A vehicle information storage unit that is mounted for each vehicle and stores vehicle information that is information on the vehicle;
An automobile measurement system comprising a vehicle information acquisition unit that is connected to a vehicle information storage unit of a vehicle to be measured in a wired or wireless manner and acquires vehicle information of the vehicle. The vehicle measurement system according to claim 1, 2, 3 or 4, wherein part or all of the vehicle information is rewritable.

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