JPH067084B2 - Vehicle running inspection device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for carrying out a running test of a vehicle, and more particularly to a pedaling force detecting means, a noise detecting means, an acceleration detecting means, and a processing section for processing detection data by these detecting means. And a remote control unit for displaying test items according to the operation of the inspector and for instructing the processing unit to perform a predetermined calculation process. The present invention relates to a vehicle running inspection device capable of obtaining running data of a vehicle.

A vehicle whose assembly work has been completed on the assembly line in the factory is subjected to a running test on a test course in the final process. In this case, in the running test, the ride comfort of the vehicle,
Various test items such as vehicle interior noise and shocks during automatic shifting are checked to determine whether or not various conditions for leaving the vehicle are met.

By the way, in the case of performing such a running test, a test method based on the response of an expert has been conventionally performed as the most general method. However, it has been pointed out that in the test based on this sensation, the judgment result of the test item is likely to vary from person to person, and thus the accuracy and reliability of the test are low and various problems occur in maintaining the required quality. Further, there is a drawback that it takes a long time and a large amount of cost is required to train a large number of such skilled persons.

Therefore, a method of loading various measuring instruments in a test vehicle and detecting data from a predetermined measuring instrument according to a test item is widely adopted. In this case, as the measuring instrument, an accelerometer that detects vibrations, a noise meter that detects in-vehicle noise,
A pedaling force meter or the like that detects the pedaling force of the brake pedal is used. Then, the detection data detected by each of the measuring instruments is compared with standard test data collected from a standard vehicle in which vibration, noise and the like are adjusted, and the quality of the test vehicle is judged to be good or bad.

However, it takes a lot of workers and a considerable amount of time to load such a large number of measuring instruments in the test vehicle, so that the workability is extremely poor, and the vehicle can be subjected to a running test within a predetermined period. The drawback is that the number of units is significantly limited. Therefore, in the normal running test, the vehicles that have completed the assembly work are sampled by random sampling, and it is said that it is practically difficult to test the running of all the vehicles.

Further, when carrying out a running test by loading each of the measuring instruments on a test vehicle, a predetermined measuring instrument has to be operated according to the test item, and there is a disadvantage that an operator is required for that. In this case, it goes without saying that it will be extremely dangerous if the test driver operates many measuring devices while driving.

The present invention has been made to overcome the above-mentioned inconveniences, and includes a pedaling force detection means, a noise detection means, and an acceleration detection means, a processing unit for processing detection data by these detection means, and a test item for an inspector. By configuring with a remote control unit that sequentially displays according to the operation of, loading work on the test vehicle becomes extremely easy,
It is another object of the present invention to provide a vehicle traveling inspection device that is extremely easy to operate and enables a traveling test to be efficiently performed.

In order to achieve the above object, the present invention provides a pedaling force detecting means for detecting a pedaling force applied to a brake pedal, a noise detecting means for detecting a noise in a test vehicle, an acceleration detecting means for detecting an acceleration, and a pedaling force. A processing unit for performing arithmetic processing on data detected by the detecting means, the noise detecting means, and the acceleration detecting means, and displaying a test item according to the operation of the inspector and performing arithmetic processing according to the test item on the processing unit. And a remote control unit for instructing.

Next, a preferred embodiment of a vehicle traveling inspection device according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a vehicle traveling inspection device according to the present invention. The vehicle traveling inspection device 10 includes a processing main body portion 12 having an acceleration detecting portion and a processing portion which will be described later, a remote control unit 14, It is basically composed of a pedaling force detection unit 16 and a noise detection unit 18. In this case, the processing body 12, remote control unit 14, pedal force detector
16 and the noise detector 18 are connected by cables 20a to 20c, respectively. The processing main body 12 is movable via a handle 22, and its power is supplied from a plug adapter 24 connected to a power plug of a test vehicle via a cable 20d.

The remote control unit 14 is shown in FIGS.
As shown in FIG. 3, the front panel has a display panel 26 including an LCD for displaying test items and test results, and a keyboard 28 for instructing the processing main unit 12 to perform processing related to the test items. Further, a bracket 30 formed by bending a plate-like member into a V shape is fixed to the rear part of the remote control unit 14, and the suction plates 34a to 34a for adsorbing to the front window glass 32 of the test vehicle are attached to the bracket 30.
4c is attached at a predetermined interval.

As shown in FIGS. 3A and 3B, the pedal effort detection unit 16 detects the pedal effort for an operator to brake the vehicle and converts the pedal effort into an electric signal, and the pedal effort sensor 36 is integrated. A mounting base that is worn and contacts the front of the brake pedal 38
40 and substantially L-shaped locking members 44a and 44b, one end of which is attached to the mounting base by bolts 42a and 42b and the other end of which abuts against the back surface of the brake pedal 38. Here, it is preferable that the pedaling force sensor 36 has a structure in which a strain gauge is attached to a diaphragm, for example.

As shown in FIGS. 4A and 4B, the noise detecting unit 18 is composed of a microphone 48 and an attachment 52 for mounting the microphone 48 on a room lamp cover 50 of a test vehicle. In this case, the attachment 52 includes a first bracket 54 that is bent in an L shape and a second bracket 56 that is connected to the first bracket 54, and the microphone 48 is mounted on the second bracket 56. The first
The bracket 54 and the second bracket 56 are connected via a shaft portion 58, and the microphone 48 is configured to be rotatable about the shaft portion 58 with respect to the first bracket 54.

On the other hand, the first bracket 54 is connected to the other end of a joint portion 62 having one end attached with a suction plate 60 via a shaft portion 63. In this case, the first bracket 54 is configured to be rotatable around the shaft portion 63. The inner surface 60a of the suction cup 60 is attached to the joint 62.
A substantially T-shaped passage 64 that communicates with both sides of the joint portion 62 is formed. A bolt 66 is screwed into a passage 64a that opens on one side and an opening on the other side. A ball 68 is inserted into the passage 64b. And bolt 66 and ball 68
A spring 70 is interposed between and. The passage
64b is gradually narrowed toward the outside of the joint portion 62, and the opening thereof has a pin member 74 planted on the other end side of a leaf spring member 72 whose one end is fixed to the side portion of the joint portion 62. Enters.

Next, FIG. 5 shows a system configuration diagram including the processing main body 12. In this case, the processing main body 12 includes a first acceleration detector 76 that detects the longitudinal acceleration of the test vehicle, a second acceleration detector 78 that detects the vertical acceleration, a pedaling force detector 16, and noise. A detection unit 18 and a processing unit 80 that processes the detection data detected by the acceleration detection units 76 and 78 are installed. The first and second acceleration detection units 76, 78
Is preferably a servo accelerometer.

The processing unit 80 includes an input / output interface 82 to which the detection units 16, 18, 76 and 78 are connected, a ROM 84 for storing test items and a processing procedure therefor, and an RA for storing processing data.
It is composed of an M86 and a processor 88 for controlling the processing program stored in the ROM 84. Further, the input / output interface 82 has a remote control unit.
14 is connected, and a data management device 94 including a host processor 90 and a memory 92 is connected. Here, in the data management device 94, the standard test data obtained by running the standard vehicle on the test course and the running environment condition at that time are stored in the memory 92. The running environment conditions mean wind speed, wind direction, and
The conditions such as temperature and weather.

The vehicle traveling inspection device according to the present invention is basically constructed as described above. Next, its operation and effect will be described.

The standard test data collected by driving a standard vehicle will naturally be different under different driving environment conditions. Therefore, first, a standard vehicle is run on a test course to collect standard test data according to various running environment conditions such as wind speed, wind direction, temperature, and weather, and the data is used as a data management device.
It is recorded in the memory 92 of 94. Next, prior to the running test of the test vehicle, the data management device 94 was connected to the processing main body 12 of the vehicle running inspection device 10 and the keyboard 28 of the remote control unit 14 was operated to meet the running environment conditions at the time of the test. The standard test data is loaded into the RAM 86 of the processing unit 80 under the control of the host processor 90.

After storing the standard test data in the processing main body 12 as described above, the data management device 10 is removed and the vehicle running inspection device 10 is loaded on the test vehicle. In this case, as shown in FIG. 6, the processing main body 12 is placed on the floor of the passenger seat in the test vehicle, and the plug adapter 24 is connected to the power plug of the test vehicle. The acceleration detectors 76 and 78 incorporated in the processing main body 12 are arranged so as to be able to detect the longitudinal and vertical accelerations of the test vehicle, respectively. Further, the remote control unit 14 has a front window glass 32 diagonally above the test driver via suction plates 34a to 34c arranged on the back surface thereof.
(See FIG. 2b). The pedal effort detection unit 16 is the third
As shown in FIGS. A and b, the mounting base 40 and the locking member 44
The brake pedal 38 is engaged by a and 44b. Further, the noise detector 18 is attached to the room lamp cover 50 of the test vehicle via the suction board 60 (see FIG. 4b). It should be noted that the microphone 48 constituting the noise detection unit 18 has a shaft portion 58.
By turning around 63 and 63, the test vehicle is orientated in a predetermined direction.

Then, the test by the test driver is started. Therefore, when the test driver operates the keyboard 28 of the remote control unit 14, the test items are displayed on the display panel 26. On the other hand, the remote control unit 14 outputs a command signal corresponding to the test item to the processing section 80 of the processing main body section 12 via the input / output interface 82. In this case, the processing unit 80 controls the RO under the control of the processor 88.
Based on the processing program stored in M84, the detection data from a predetermined detection unit is processed, and the processing result is stored in the RAM86.

Here, the test items of the vehicle running inspection device 10 according to the present invention include shocks during automatic shifting, riding comfort, vehicle interior noise due to the engine, wind noise, brake pedal force, and the like. For example, the shock at the time of automatic gear shifting is based on the detection data obtained from the first acceleration detecting unit 76 for detecting the longitudinal acceleration of the test vehicle based on the control of the processor 88.
It is checked by processing by the processing program stored in M84. The riding comfort is checked by processing the detection data from the first and second acceleration detection units 76 and 78 by the processing program. Interior noise, wind noise, etc. are checked by processing the detection data from the microphone 48 mounted on the room lamp cover 50. Furthermore, the brake pedal force during deceleration is checked by processing the detection data from the pedal force detector 16. It should be noted that, for example, the shock and riding comfort at the time of automatic gear shifting are determined by, for example, the first and second acceleration detection units 76 and 78.
It is checked by analyzing the detection data obtained by using the full-wave method. Here, the full-wave method is described in detail, for example, in "Fatigue and Design of Metals" (Mechanical Engineering 7) published by Corona (3rd edition, March 20, 1977). Is omitted.

The detection data obtained from each of the above detection units 16, 18, 76 and 78 is then compared with the data of the standard vehicle stored as standard test data in the RAM 86 in advance, and whether the test vehicle has a predetermined performance level. It is determined whether or not. Then, the detection data and the determination result are stored in the RAM 86 and displayed on the display panel 26 of the remote control unit 14 via the input / output interface 82. Therefore, the test driver operates the keyboard 28 based on the determination result, and shifts to the measurement of the next test item. In this case, the following test items are displayed on the display panel 26, and a command signal corresponding to the test item is output from the remote control unit 14 to the processing unit 80 of the processing main body unit 12 to perform a predetermined calculation process. Is done.

The traveling test is completed by sequentially repeating the above operation, and then the vehicle traveling inspection device 10 is removed from the test vehicle on which the traveling test is completed. Here, when removing the noise detector 18 from the room lamp cover 50, the joint 62
If the end portion of the leaf spring member 72 attached to the
The pin member 74 planted at the end of the pin 68 presses the ball 68 against the elastic force of the spring 70 toward the bolt 66. As a result, the inner surface portion 60a of the suction plate 60 and the outside are provided with the passage 64.
The noise detector 18 is easily separated by the air flow. Therefore, the noise detection unit 18 can be removed without the room lamp cover 50 falling off.

Next, the vehicle running inspection device 10 removed from the test vehicle
For example, a printer is connected to the RAM 86 of the processing unit 80.
The measurement result stored in is output to the recording medium. The vehicle running inspection device 10 is loaded on the next test vehicle and the same running test is performed.

As described above, according to the present invention, each detecting unit for pedaling force, noise, and acceleration, a processing unit that processes data detected by each detecting unit, and a test item is displayed based on an operation of an inspector. The remote control unit is configured to output a command signal corresponding to a test item to the processing main body. Therefore, unlike the prior art, it is not necessary to provide a data processing mechanism for each measuring instrument, and therefore the overall configuration is compact and the loading work on the test vehicle is extremely easy. As a result, it is possible to reduce the number of workers involved in the loading work, and to significantly reduce the working time, and it becomes possible to carry out a running test on many vehicles within a predetermined time. Further, since the test items are displayed on the remote control unit and the next test items are sequentially displayed according to the operation of the inspector, it is possible to perfectly perform the running test procedure without mistake. In this case, the running test using the remote control unit can be performed very easily, and the running test can be performed by one test driver alone, which has the advantage of further reducing the number of workers.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment. For example, the first and second accelerations that detect longitudinal and vertical accelerations as the acceleration detecting means. In addition to the detection unit, a third acceleration detection unit for detecting the lateral acceleration of the test vehicle can be provided, and the voice input means can be used for a work instruction to the processing unit. It goes without saying that various improvements and design changes can be made without departing from the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a vehicle traveling inspection device according to the present invention, and FIGS. 2a and 2b are configuration perspective views showing a remote control unit in the vehicle traveling inspection device according to the present invention and a side view thereof, and FIG. 3a. 4A and 4B are a perspective view and a side view showing a state in which the pedal effort detection unit in the vehicle traveling inspection device according to the present invention is attached to a brake pedal, and FIGS. 4A and 4B are noise detection units in the vehicle traveling inspection device according to the present invention. FIG. 5 is a front view and a partially cutaway side view of FIG. 5, FIG. 5 is a block diagram of a vehicle traveling inspection device according to the present invention, and FIG. 6 is an explanatory diagram showing a state in which the vehicle traveling inspection device according to the present invention is loaded on a test vehicle. Is. 10 ... Vehicle running inspection device, 12 ... Processing main body part 14 ... Remote control unit 16 ... Pedaling force detecting part, 18 ... Noise detecting part 24 ... Plug adapter, 26 ... Display panel 28 ... Keyboard, 34a-34c ... Adsorption board 36 ... Pedaling force Sensor, 48 ... Microphone 52 ... Attachment, 60 ... Adsorption board 76, 78 ... Acceleration detection part, 80 ... Processing part 94 ... Data management device

Claims (5)

[Claims] 1. A pedaling force detecting means for detecting a pedaling force applied to a brake pedal, a noise detecting means for detecting noise in a test vehicle, an acceleration detecting means for detecting an acceleration, a pedaling force detecting means, a noise detecting means, and A processing unit for performing arithmetic processing on the data detected by the acceleration detecting means; and a remote control unit for displaying a test item in response to an operator's operation and for instructing the processing unit to perform arithmetic processing according to the test item. A vehicle traveling inspection device characterized by being provided. 2. The vehicle running inspection device according to claim 1, wherein the pedal effort detecting means is mounted on a brake pedal and configured to detect the pedal effort by a strain gauge. 3. The vehicle running inspection device according to claim 1, wherein the noise detecting means is composed of a microphone mounted on a room lamp cover in the test vehicle via an adsorption plate. 4. The apparatus according to claim 1, wherein the acceleration detecting means includes a first acceleration detecting section for detecting an acceleration in the longitudinal direction of the vehicle and a second acceleration detecting section for detecting an acceleration in the vertical direction of the vehicle. A vehicle traveling inspection device including an acceleration detection unit and integrally configured with a processing unit. 5. The apparatus according to claim 1, wherein the remote control unit displays a display panel for displaying the test items, displays the test items, and instructs the processing section to perform arithmetic processing according to the test items. A vehicle running inspection device that has a keyboard and is attached to the windshield of a test vehicle through a suction plate.