JP5219294B2 - Drivers aid system - Google Patents

Description

  The present invention relates to a driver aid system that is used in a vehicle performance evaluation test performed on a chassis dynamo and assists the driver (driver) of the vehicle to follow and drive.

  The chassis dynamo used in vehicle performance evaluation tests can be used to perform experiments equivalent to running on actual roads easily and with good reproducibility in the room, so it can be used for fuel consumption measurement tests, exhaust gas characteristics tests, durability tests, etc. Widely used.

  In the vehicle running test using this chassis dynamo, the driving pattern (running speed) for driving the vehicle performance evaluation on the monitor (drivers aid display device) so that the driver can drive with reproducibility. Pattern) is displayed.

  The driver's aid indicates what speed the driver is driving the vehicle under test. Examples of specific traveling speed patterns displayed on the driver's aid include driving patterns such as “10 · 15 mode” and “US06 mode” (for example, Patent Documents 1 and 2).

  Then, a performance evaluation test is performed by the driver driving the vehicle under test on the chassis dynamo so as to follow the traveling speed pattern.

  Thus, when driving the vehicle under test following the travel speed pattern, the driver of the vehicle under test must drive mainly so that the travel speed pattern and the speed of the vehicle under test always coincide.

  Therefore, the information necessary for the vehicle performance test is provided so that the driver can check other information (for example, road surface gradient information) while checking the traveling speed pattern information and the actual vehicle speed of the vehicle under test. It is displayed on the aid display device (for example, Patent Documents 1 to 5).

  Currently, vehicle performance evaluation methods are diversified, and it is required that not only the exhaust gas test as described above but also a running test on a non-standard real road is reproduced on the chassis dynamo. . When reproducing this traveling test, for example, as shown in FIG. 10, the chassis dynamo first collects measurement data (vehicle speed, road surface inclination, etc.) by actually traveling with the vehicle 9 on the road where the traveling test is performed. (For example, Patent Documents 6 and 7). Based on the collected measurement data, the traveling speed pattern creating means 52 creates a traveling speed pattern, and the control means 51 displays the traveling speed pattern on the driver aid display device 4a. When a running test on an actual road is reproduced on the chassis dynamometer 3, the driver drives while following the running speed pattern displayed on the driver aid display device 4a.

  As illustrated in FIG. 11, a traveling speed pattern 12 is displayed on the main screen 11 displayed on the screen 100 of the driver aid display device 4 a in FIG. 10. The driver of the vehicle under test 6 operates so that the vehicle speed of the vehicle under test 6 follows the traveling speed pattern 12. Further, the driver's aid display device 4a includes a sub-screen 11a for displaying the entire process of running test, analog speed information 17, analog gradient information 18, driving time 19 of the vehicle under test 19, and the vehicle under test 6a. A travel distance 20 is displayed.

  In addition to the traveling speed pattern 12, altitude information 13 and the like are displayed on the main screen 11. Further, a reference line 15 is displayed on the main screen 11 as a line indicating the current position of the vehicle under test 6. In the example of the main screen 11 shown in FIG. 11, a marker 14 having a vehicle shape is displayed at the intersection of the reference line 15 and the altitude information 13.

  On the sub-screen 11a, a travel speed pattern 12a for the entire travel speed test, altitude information 13a for the entire travel, a reference line 15a indicating the location where the vehicle under test 6 is currently located, and the like are displayed.

Japanese Patent Laid-Open No. 8-170938 JP 11-160203 A Japanese Patent Laid-Open No. 11-37902 JP-A-11-153519 JP-A-11-160204 JP-A-63-215936 JP-A-8-304237 JP-A-61-255380

  However, since such a traveling speed pattern 12 is intended to assist the driver in following the driving, the driver's aid display device 4a is provided with the terrain information and traveling information of the actual road on which the traveling test is being performed. The progress of the test was not visually displayed. Accordingly, a third party other than the driver (for example, a tester other than the driver or a visitor of the test facility) performs a running test on the actual road from the running speed pattern 12 displayed on the driver aid display device 4a. I could not get a sense of realism.

  Further, since the accuracy of the position data acquired by the GPS is poor, when the actual travel data and the map data are displayed in an overlapping manner, the travel data and the map data may be misaligned.

  In view of the above problems, the driver's aid system of the present invention displays a running speed pattern for the driver of the vehicle under test to follow and drive in order to perform a performance evaluation test of the vehicle under test on the chassis dynamo. A first control means for displaying the travel speed pattern on a first display means, and a second display means for displaying a travel route corresponding to the travel speed pattern on a second display means. And a control means.

  In the driver's aid system, the second display means may display a travel route to which altitude information is added.

  Furthermore, in the driver's aid system, the second control unit may display map data corresponding to the route superimposed on the displayed travel route.

  In the driver aid system, the second control unit may include a correction unit that corrects the display position of the travel route and the map data.

  In the driver aid system, the traveling speed pattern may be created based on traveling data obtained by traveling on a road on which a traveling test is performed with a vehicle equipped with GPS.

  In the driver aid system, the second control means may display a marker indicating the current position of the vehicle under test on the travel route based on the command value of the travel speed pattern.

  Furthermore, in the above driver's aid system, the second control means may change and display the color of the route on which the running test is completed in the running route.

  In the driver aid system, the second control unit may cause the second display unit to display an image of an in-vehicle camera provided in a vehicle equipped with the GPS.

  According to the above invention, it is possible to visually grasp (obtain a sense of realism) the geographical information of the route on which the driving test is performed and the progress of the driving test.

The block diagram of the chassis dynamo provided with the driver's aid system which concerns on embodiment of this invention. The figure which shows an example of the screen by which display control was carried out by the driver's aid system which concerns on embodiment of this invention. It is a figure showing an example of the screen by which display control was carried out by the driver's aid system concerning an embodiment of the present invention, and the figure which displayed the road surface which performs a run test (skeleton display). It is an enlarged view of a figure showing an example of a screen display-controlled by the driver's aid system concerning an embodiment of the present invention, and is an enlarged view of a display part which displays altitude information at the current value of a vehicle which performs a running test. It is a figure which shows an example of the screen by which display control was carried out by the driver's aid system which concerns on embodiment of this invention, and is an enlarged view of the figure which displayed the road surface which performs a running test (skeleton display). It is a figure which shows an example of the screen by which display control was carried out by the driver's aid system which concerns on embodiment of this invention, and displayed the road surface which performs a running test on topographic information (surface display). It is a figure which shows an example of the screen by which display control was carried out by the driver's aid system which concerns on embodiment of this invention, and displayed the road surface which performs map information and a running test on topographic information. The figure which shows an example of the coordinate input screen of the driver's aid system which concerns on embodiment of this invention. The figure which shows the example of a display of the correction | amendment input button of the driver's aid system which concerns on embodiment of this invention. The system block diagram of the chassis dynamo system which concerns on a prior art. The figure which shows the example of a display of the running speed pattern in the driver's aid which concerns on a prior art.

  A driver aid system according to the present invention is provided in a chassis dynamo, and includes a first control unit that displays a traveling speed pattern on a first display unit, a route for performing a traveling test (hereinafter referred to as a traveling route), and the route. A second control means for displaying the corresponding map data superimposed on the second display means is provided.

  Therefore, according to the driver aid system of the present invention, a person other than the driver of the vehicle under test can travel by viewing the travel route displayed on the second display means and the map data corresponding to the travel route. You can intuitively understand the geographical information of the route and the progress of the driving test.

  A chassis dynamo equipped with a driver aid system according to an embodiment of the present invention will be described in detail with reference to FIG. However, the driver aid system according to the present invention is not limited to this embodiment, and can be modified as appropriate to solve the above-mentioned problems, and this modified form also belongs to the technical scope of the present invention. For example, when a performance evaluation test is performed based on a driving pattern assuming an existing urban area or highway, a driving route assumed by the driving pattern and map data corresponding to the driving route may be displayed.

  As shown in FIG. 1, a chassis dynamo 1 according to an embodiment of the present invention includes a chassis dynamometer 3 on which driving wheels of a vehicle under test 6 are mounted and a driver aid system 5. The driver aid system 5 includes a driver aid device 5a as the first control means, and a driver aid aid device 5b, a driver aid display device 4a, and an auxiliary display device 4b as the second control means. .

  The chassis dynamometer 3 is controlled by the operation measurement board 22 via the dynamo control board 23. The control computer device 21 is a man-machine interface, and performs manual operation and correction of the operation measurement panel 22. The operation measurement panel 22 receives test schedule information (speed information, gradient information) and information detected by the chassis dynamometer 3 (vehicle speed of the vehicle under test 6) from the driver aid device 5a.

  The driver aid device 5 a includes a control unit 51 and a traveling speed pattern creation unit 52.

  The traveling speed pattern creating means 52 creates a traveling speed pattern as illustrated in FIG. 11 based on the measurement data of the vehicle 9 actually traveling on the road on which the traveling test is performed.

  In addition, as shown in FIG. 1, when traveling on a road on which a traveling test is performed with a vehicle 9 equipped with a GPS (Global Positioning System) receiver 8 and traveling data is acquired, the traveling speed pattern creating means 52 includes a GPS Information (for example, latitude and longitude) received by the receiver 8 is input.

  The traveling speed pattern creating means 52 creates a traveling speed pattern based on the measurement data collected by the vehicle 9 actually traveling on the road where the traveling speed test is performed, and based on the information received by the GPS receiver 8. To add information such as latitude and longitude. Therefore, a more accurate running speed test based on information received by the GPS receiver 8 can be performed.

  Further, since the position of the vehicle 9 and the vehicle speed information at the position can be obtained from the information acquired by the GPS receiver 8, the GPS receiver 8 indicates the travel distance of the vehicle 9 on the road where the travel test is performed. It can be obtained from the received information. Therefore, the travel speed pattern creating means 52 can easily create a travel speed pattern with the horizontal axis of the travel speed pattern as the travel distance and a travel speed pattern with the horizontal axis of the travel speed pattern as the time.

  The control means 51 displays the traveling speed pattern created by the traveling speed pattern creating means 52 on the driver aid display device 4a. Further, the control means 51 displays information (gradient information etc.) necessary for the driver of the vehicle under test 6 to drive the vehicle under test 6 following the travel speed pattern on the driver aid display device 4a.

  The driver's aid assisting device 5b includes a control means 53 and a correction means 54.

  The control unit 53 controls display on the auxiliary display device 4b by superimposing the measurement data and position data (latitude, longitude, etc.) input from the traveling speed pattern generation unit 52 and the map data 2 input from the outside. The map data 2 may be stored in advance in the driver aid assisting device 5b, or the map data 2 may be acquired from the map information 2 'via the network. And when displaying the map data 2 on the auxiliary display device 4b, a satellite photograph, a contour map, a city map, etc. may be attached according to the application. A plurality of auxiliary display devices 4b may be provided.

  The correction means 54 corrects the display position of the travel route based on the position data displayed on the auxiliary display device 4b and the route on the map data 2.

  The position data input from the traveling speed pattern creation means 52 is obtained based on GPS, but the position data (latitude / longitude) acquired from the GPS is compared with the latitude / longitude information of the map data 2. And the accuracy is inferior. Therefore, when the traveling longitude displayed based on the position data acquired from the GPS and the road surface on the map data 2 corresponding to the traveling route are displayed in an overlapping manner, an error occurs between the traveling route and the display position of the map data 2. Will occur. Therefore, the correction means 54 corrects the travel route or the display position of the map data 2 corresponding to this route, so that the map data 2 can be displayed so that the travel route matches the road surface on the map data 2. it can.

  The driver's aid assisting device 5b is provided with an input device (not shown) (keyboard, 3D mouse, etc.), and the map data 2 on which the correction means 54 is displayed based on the information from this input device and the enlargement / If the reduction and the change of the display direction and the display angle can be performed, a display form according to the preference of the third party can be selected. In this operation, the center point for enlarging / reducing the map data 2 and the center point for changing the display direction / display angle are the positions of the mouse pointer and the vehicle under test 6 displayed on the auxiliary display device 4b. It is recommended that the points be indicated.

  The functions of the control means 51 and 53, the traveling speed pattern creation means 52, and the correction means 54 can be realized by a computer and a program. The program can be stored in a known recording medium or provided through a network. In addition, the driver aid aid device 5a and the driver aid aid device 5b are each configured by a single piece of hardware in the embodiment, but may be configured by a single piece of hardware.

  FIG. 2 shows a display control example of the driver aid aid device 5a and the driver aid aid device 5b. The driver aid device 5a and the driver aid aid device 5b can transmit and receive data to and from each other. The connection method between the driver aid device 5a and the driver aid assist device 5b is not particularly limited, and examples thereof include a connection method using a LAN. The driver aid display device 4a and the auxiliary display device 4b may be a monitor such as a CRT.

  The driver's aid display device 4a displays the traveling speed pattern output from the driver's aid device 5a. Then, the driver of the vehicle under test 6 drives the vehicle under test 6 on the chassis dynamometer 3 so that the travel speed of the vehicle under test 6 follows this travel speed pattern while confirming this travel speed pattern.

  On the other hand, the auxiliary display device 4b displays the travel route output from the driver aid aid device 5b and the map data 2 corresponding to this route. When performing a driving test, the driver's aid auxiliary device 5b changes the color of the displayed driving route based on the command value of the driving speed pattern transmitted in real time from the driver's aid device 5a. The progress state of the running test is displayed on the auxiliary display device 4b. Thereby, the third party can intuitively grasp the geographical condition of the travel route and the progress state of the travel test.

  FIG. 3 shows an example in which the control means 53 of the driver's aid assisting device 5b displays the travel route 7 in a 3D skeleton on the screen 101 of the assisting display device 4b. That is, on the screen 101 of the auxiliary display device 4b, the travel route 7 to which altitude information of the route for performing the travel test is added is displayed.

  In addition to the travel route 7, the screen 101 may display a latitude information display unit 41, a longitude information display unit 42, an altitude information display unit 43, a travel distance display unit 44, and the like. The latitude information display unit 41 displays the latitude of the current location of the vehicle under test 6, and the longitude information display unit 42 displays the longitude of the current location of the vehicle under test 6. The altitude information display unit 43 displays the altitude at the current location of the vehicle under test 6, and the travel distance display unit 44 displays the travel distance information at the current location of the vehicle under test 6. Furthermore, as illustrated in FIG. 4, when the numerical display field of the current altitude of the altitude information display unit 43 also serves as a bar graph, the ratio of the current value based on the minimum value and the maximum value of the altitude on the route is displayed. The current altitude information can be grasped more intuitively. Similarly, in FIG. 3, the numerical display field of the travel distance display unit 44 may have the same function as the altitude information display unit 43.

  In the display example of FIG. 3, the bottom surface 7 a represents a point at 0 m above sea level, and the travel route 7 is three-dimensionally displayed according to the sea level of the travel route 7. In the traveling route 7, for example, an altitude reference line 7b is displayed for every altitude of 100 m. The altitude reference line 7b is not limited to being displayed every 100 m, but may be displayed every 25 m, for example. Further, the reference of the bottom surface 7a is not limited to the point at 0 m above sea level, and the setting can be changed as appropriate, for example, the point of the traveling route 7 having the lowest altitude is used as a reference.

  Further, as shown in FIG. 5 in which FIG. 3 is enlarged, if the color of the route 7d on which the traveling test is completed is changed and displayed in the traveling route 7, it becomes easier to grasp the progress information of the traveling test. Further, a marker 7 c indicating the current position of the vehicle under test 6 may be displayed on the travel route 7. The marker shape and display position are appropriately selected and displayed for easy understanding. The current position of the marker 7c may be displayed based on the command value of the traveling speed pattern. This is because the speed display of the traveling speed pattern and the speed of the vehicle under test 6 do not always coincide with each other. Therefore, when the current position of the marker 7c is displayed based on the detected speed of the vehicle under test 6, the marker 7c travels. This is because the display is shifted from the current position of the route 7.

  FIG. 6 shows an example in which the control means 53 of the driver aid assist device 5b displays (surface display) the map data 2a having the travel route 7 and the terrain information corresponding to the travel route 7 on the screen 101 of the auxiliary display device 4b. It is. 3 that are the same as those in the display example of the screen 101 illustrated in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted (the same applies to the display example of the screen 101 illustrated in FIG. 7).

  As shown in FIG. 6, the driving route 7 and the map data 2a are displayed on the screen 101 so as to be superimposed on the actual road (mountain part, plain part, etc.) and the performance evaluation test of the vehicle is performed. A feeling can be obtained.

  1 is equipped with an in-vehicle camera (not shown) or the like on the road 9 that actually travels on the road on which the driving test is performed. It is transmitted. In addition, it is good to display the image | video from this vehicle-mounted camera based on the command value of a travel speed pattern similarly to the progress information of the said travel test.

  FIG. 7 shows an example in which the control means 53 of the driver aid assist device 5b displays the travel route 7 and map data 2b having 3D map information corresponding to the travel route 7 on the screen 101 of the auxiliary display device 4b. .

  As shown in FIG. 7, when the travel route 7 and the map data 2b are displayed in an overlapping manner, it is necessary to match the road on the map data 2b with the displayed travel route 7. Therefore, the road on the map data 2b and the travel route 7 are matched by comparing the latitude and longitude of the point selected from the travel route 7 with the latitude and longitude of the map data 2b.

  When the map data 2b is displayed, 2D map data may be displayed. However, when the map data is displayed in 3D, information on what actual road running test is being conducted can be conveyed in more detail.

In the graphic interface 21 of the correction means 54 shown in FIG. 8, the latitude and longitude of the starting point at which the running test is performed as point 1 are input in the respective entry fields of the frame 22, and the latitude and longitude of the end point of the running test are entered as points 2 in the frame. 23, and the recalculation button 26 is pushed. When the recalculation button 26 is pressed, the lower left coordinates (north latitude / east longitude) and upper right coordinates (north latitude / east longitude) of the map data 2b to be displayed corresponding to the displayed travel route are calculated. By this lower left coordinates and upper right coordinates on a map data 2b to match the lower left coordinates and upper right coordinates of the display screen of the auxiliary display screen 4b, driving route 7 and displayed as a road on the map data 2b matches can do. Note that the point to be input as the point is not limited to the start point and the end point, and can be selected as appropriate. Also, the number of points may be two or more, and the display accuracy of the map is improved by increasing the number of points. In particular, when the distance between two points is short, the map data 2b can be displayed with higher accuracy by inputting a point (latitude, longitude) far from the two points as the point3.

  In FIG. 9, the control means 53 of the driver aid assist device 5b displays the travel route 7 (indicated by a dotted line in the figure) and the 2D map data 2c corresponding to the travel route 7 on the screen 101 of the auxiliary display device 4b. A display example is shown. In the example of FIG. 9, the travel route 7 is displayed in agreement with the road surface on the map data 2c. Further, in the display example of FIG. 9, the correction input button 10 is displayed as an auxiliary function of the correction unit 54. For example, when the travel route 7 and the road surface on the map data 2c do not coincide with each other visually, the display position of the travel route 7 or the displayed map data 2c is translated based on the input from the correction input button 10. Thus, the display position of the travel route 7 and the map data 2c corresponding to the route 7 can be corrected.

  The function of the correcting means 53 described with reference to FIG. 9 is not used only when the travel route 7 and the map data 2c are displayed on the screen 101, and has, for example, the terrain information shown in FIG. You may use when displaying map data 2a.

  As described above, according to the driver aid system according to the present invention, when a driving test on an actual road is performed with the chassis dynamo, a third party other than the driver who is performing the driving test conducts the driving test. It is possible to grasp the outline (terrain information, etc.) and the progress information of the driving test. Therefore, it is possible to intuitively obtain a sense of realism that a running test on an actual road is being performed in a performance evaluation test of a vehicle that drives the vehicle under test so as to follow a running pattern that reproduces the actual road.

  Further, by providing correction means for correcting the display position of the map data corresponding to the travel route based on a plurality of points on the travel route, the travel route and the road on the map data can be displayed in correspondence. . Furthermore, since the correcting means has a function of translating the displayed travel route or map data, the displayed travel route and the display position of the map data can be finely adjusted.

DESCRIPTION OF SYMBOLS 1 ... Chassis dynamo 2, 2a, 2b, 2c ... Map data 3 ... Chassis dynamometer 4a ... Driver's aid display apparatus (1st display means)
4b ... auxiliary display device (second display means)
5. Driver's aid system 5a ... Driver's aid device (first control means)
5b ... Drivers aid assist device (second control means)
6 ... Vehicle under test 7 ... Traveling route 10 ... Correction input button 11 ... Main screen (region for displaying traveling speed pattern)
12, 12a ... Traveling speed pattern 13 ... Altitude information 14 ... Markers 15, 15a ... Reference lines 51, 53 ... Control means 52 ... Traveling speed pattern creation means 54 ... Correction means 101 ... Screen of auxiliary display device

Claims (8)

A driver's aid system for displaying a running speed pattern for a driver of the vehicle under test to follow and drive in order to perform a performance evaluation test of the vehicle under test on a chassis dynamo,
First control means for displaying the travel speed pattern on a first display means;
A driver's aid system, comprising: second control means for displaying a travel route corresponding to the travel speed pattern on a second display means. The driver's aid system according to claim 1, wherein the second display means displays a travel route to which altitude information is added. 3. The driver aid system according to claim 1, wherein the second control unit displays map data corresponding to the route on the displayed travel route in an overlapping manner. 4. 4. The driver aid system according to claim 3, wherein the second control unit includes a correction unit that corrects a display position of the travel route and the map data. 5. 5. The travel speed pattern according to claim 1, wherein the travel speed pattern is created based on travel data obtained by traveling on a road on which a travel test is performed with a vehicle equipped with GPS. Driver's aid system as described. The second control means displays a marker indicating the current position of the vehicle under test on the travel route based on a command value of the travel speed pattern. The driver's aid system according to item 1. The driver's aid according to any one of claims 1 to 6, wherein the second control means changes and displays the color of the route on which the traveling test is completed in the traveling route. system. The said 2nd control means displays the image | video of the vehicle-mounted camera with which the vehicle carrying the said GPS is mounted on the said 2nd display means, The any one of Claims 5-7 characterized by the above-mentioned. Drivers aid system.

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