JP2009198480A - Drivers aid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems with a driver's aid wherein it is necessary to learn a monitor screen due to a two dimensional graph display and wherein deviation from a car speed mode is likely to occur with a loading variation due to a gradient direction. <P>SOLUTION: In a monitor display, a pace car-displaying area displaying a vehicle driving in front of a car to be tested and a decision-displaying area deciding a distance between the vehicle displayed in the pace car-displaying area and the car to be tested are provided. The decision-displaying area, a car speed chart stroke area, and a gradient chart stroke area are made to be a three dimensional display, and a fall area is provided in the decision-displaying area to call attention to a driving speed. By providing a start timing displaying section and a gradient-starting countdown area informing gradient starting of a car speed mode, a testing under usual driving perception is achieved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a driver's aid (driving monitor), and more particularly to a driver's aid that informs a driver of the timing when a slope starts.

  Driver's Aid, which places a test vehicle on a chassis dynamometer, drives the vehicle according to the vehicle speed mode displayed on the Driver's Aid screen by the driver on the test vehicle, and measures fuel consumption, exhaust gas, etc. 1 or the like.

FIG. 8 shows an outline of the vehicle running test by the driver aid, where 1 is the vehicle under test, 2 is the chassis dynamometer, 3 is the driver aid body, the vehicle speed signal detected by the chassis dynamometer 2, In addition, a measurement signal required for the test is input and signal processing is executed, and is output to the operation room monitor display 5 and the on-site driver monitor display 6 via the display distributor 4. The on-site driver monitor display 6 is arranged at a front position outside the vehicle and displays a vehicle speed pattern. The vehicle speed pattern depends on a standard mode that is determined in advance by a time reference.In that case, for example, the vehicle speed target, actual vehicle speed, shift timing, etc. I will drive while checking.
Japanese Utility Model Publication No. 6-46351

  When testing on the chassis dynamometer 2, a blower for running resistance is generally installed on the front surface of the vehicle under test 1. The monitor display 6 for displaying the vehicle speed pattern is arranged at a position that does not affect the flow of wind from the blower with respect to the vehicle under test, that is, on the right or left side of the blower. For this reason, the driver is always in a state of driving with the neck directed to the right or left, and driving in a physically painful state is forced.

  Further, as a graph displayed on the monitor display 6, a vehicle speed instruction, a foul determination, a gradient instruction, and the like are displayed. The vehicle speed instruction method is a two-dimensional graph in which time is taken on the X axis and vehicle speed is taken on the Y axis. Regarding foul determination, the foul determination line is a lower limit and an upper limit graph of the vehicle speed instruction graph, and the gradient instruction method is also a two-dimensional graph in which time is on the X axis and gradient is on the Y axis. Therefore, since the driver has an image different from that on actual road driving, it is necessary to get used to the monitor screen displayed on the monitor display 6. Furthermore, when there is a gradient command, when the gradient command is input to the chassis dynamometer 2 as a control command, the load on the chassis dynamometer 2 changes. The driver needs to drive at a predetermined vehicle speed pattern in response to the load change, but the driver needs to be aware of the timing at which the load change occurs, and thus requires a high level of skill.

  An object of the present invention is to provide a driver's aid that can be driven in a normal driving sense and can transmit the gradient start timing to the driver.

Claim 1 of the present invention is a driver aid for mounting a test vehicle on a chassis dynamometer and driving the vehicle along a vehicle speed mode displayed on a monitor display by a test driver.
The monitor display is provided with a pacecar display area for displaying a vehicle traveling ahead of the test vehicle, and a determination display area for determining a distance between the vehicle displayed in the pacecar display area and the test vehicle. is there.

  Claim 2 of the present invention is characterized in that the determination display area is provided with an OK area indicating a correct traveling speed, a caution area indicating a traveling speed caution, and a foul area indicating a foul.

  The third aspect of the present invention is characterized in that the OK area, the caution area, and the foul area provided in the determination display area are displayed by color.

  According to a fourth aspect of the present invention, the determination display area is directly displayed as a numerical value at a rear portion of the vehicle displayed in the pace car display area.

  A fifth aspect of the present invention is characterized in that a gradient start countdown area is provided on the monitor display for notifying a gradient start in the vehicle speed mode.

  A sixth aspect of the present invention is characterized in that the monitor display is provided with a start timing display section that indicates the operation start timing of the test vehicle.

  According to a seventh aspect of the present invention, the display area on the monitor display is a three-dimensional display.

  According to an eighth aspect of the present invention, a center line divided into a predetermined length on the pace car travel path is displayed in the determination display area.

  A ninth aspect of the present invention is characterized in that the center line displayed in the determination display area is configured such that the thickness and length of the center line are variable in accordance with the gradient pattern.

  According to a tenth aspect of the present invention, the foul area is displayed with a caution color when the test vehicle speed enters the foul range.

  As described above, according to the present invention, the monitor screen displayed on the monitor display uses an expression closer to that of an actual vehicle, and thus a vehicle speed pattern programmed in advance with a sense of driving a normal automobile is determined in advance. It is possible to drive within the limits. Further, by performing the gradient start countdown display, it is possible to inform the driver of the timing at which the gradient starts (the timing at which the load on the chassis dynamometer changes), so that the driver can easily cope with it. Further, by making the monitor screen displayed on the monitor display three-dimensional, it is possible to perform a test on the chassis dynamometer more like driving a real vehicle.

The present invention provides a driver's aid in which a test vehicle is mounted on a chassis dynamometer and a test driver drives the vehicle in accordance with a vehicle speed mode displayed on a monitor display.
The monitor display is provided with a pacecar display area for displaying a vehicle traveling ahead of the test vehicle, and a determination display area for determining the distance between the vehicle displayed in the pacecar display area and the test vehicle. Hereinafter, it explains in full detail based on an Example.

  FIG. 1 is a diagram showing a display state of a monitor display according to the first embodiment of the present invention. Reference numeral 10 denotes a pacecar display area provided on the monitor display. In this display area 10, an automobile running in front of the test vehicle 1 is displayed, and this automobile serves as a pacecar. A determination display area 11 is provided at a position corresponding to the ground of the pace car. The determination display area 11 is provided with an OK area 12 indicating a correct traveling speed, a caution area 13 indicating a traveling speed caution, and a foul area 14 indicating a foul. For example, the OK area 12 is “blue”. The attention area 13 is identified by a color such as “yellow” and the foul area 14 is “red”.

The attention area 13 is set, for example, within 1 km / h from the target and within 1 second, and the foul area 14 is set at 1 km / h or more from the target and 1 second or more. Note that 13a in the attention area 13 is a position where the speed of the vehicle under test 1 is low and away from the pace car, and 13b is an area where the speed of the vehicle under test 1 is high and close to the pace car.
Reference numeral 15 denotes a driver area indicating the driver's seat of the vehicle 1 to be tested, and reference numeral 16 denotes a vehicle speed chart scroll area, which displays a vehicle speed based on a predetermined driving pattern. That is, it is displayed at which speed of which driving pattern the vehicle under test or the pace car is driving (deceleration, acceleration, and constant speed).

  Reference numeral 17 denotes a gradient chart scroll area, which displays gradients based on predetermined driving patterns, that is, “up”, “down” and “flat” positions together with the position of the vehicle under test 1. In the gradient chart scroll area, even if the speed is constant, for example, when climbing, the driver has different accelerator depression amounts. For this reason, a gradient start countdown area 18 is provided. The countdown area 18 starts the countdown from a predetermined time before the gradient starts, and informs the driver that the gradient will start soon. Reference numerals 19 to 22 denote measurement value display areas.

  The writing to each area described above can be realized by a program. The driver drives the vehicle under test while looking at the monitor display 6 during the test. At that time, the driver displays the determination display area 11 with the pace car displayed in the pace car display area 10 as the center, and the vehicle speed and gradient arranged on the left and right. By referring to each chart scroll area, it is possible to operate close to the normal operation state, and since the countdown starts when shifting to gradient operation, the test system improves with good follow-up to a predetermined operation pattern. is there.

  The driver may display the vehicle under test according to the degree of acceleration / deceleration and the degree of acceleration / deceleration, and display the color of the vehicle in different shades of color, and for the gradient, the width of the road is expressed using perspective. By doing so, a test with a more normal driving feeling becomes possible. Further, by displaying the distance error of the preceding pace car, for example, the number on the license plate as Xm, it becomes possible to drive with better followability.

  FIG. 2 shows a configuration diagram of another embodiment in which the driver's aid is three-dimensionally displayed. In FIG. 2, a subscript “a” is added to a three-dimensionally displayed part. Reference numeral 23 denotes a start timing display unit, which is configured so that a vehicle start for starting a test is sequentially lit for every several seconds, for example, every second. In FIG. 2, the countdown starts from 5 seconds before the start. It has become. This enables a start that matches the operation pattern based on the standard mode. Reference numeral 24 denotes a numerical value display unit which corresponds to any one of the measurement value display areas 19 to 22 and displays the set speed and set shift position of the operation mode, and the detected vehicle speed and shift position. A center line 25 is provided in the determination display area 11a. A plurality of center lines 25 are displayed at a predetermined length in the determination display area 11a so that the distance between the center and the pace car is a guide. It is configured to flow sequentially, and is visually displayed to the driver so as to be a measure of the speed of the vehicle under test according to the flowing speed. In this embodiment, the foul area 14a is indicated by the line range between the arrows and displayed at the side of the pace car.

3 to 7 show a test state according to the second embodiment.
FIG. 3 shows a case where the vehicle under test is within the speed range of the driving pattern, ie, detection is 59.2 k / m with respect to the set speed 60 k / m.
FIG. 4 shows a case where the detection speed is 56.5 k / m with respect to the set speed of 60 k / m, and the vehicle under test is delayed from the driving pattern speed. The pace car is located in front of the foul area 14a and displayed. The number of center lines 25 to be used is also increased to three. In the case of a delay as shown in FIG. 4, the area including the range of the foul area 14a is displayed with a caution color such as a shield display with a transparent color, thereby alerting the driver.

FIG. 5 shows a case where the detection is 62.4 k / m with respect to the set speed of 60 k / m, which is faster than the speed of the driving pattern.
FIG. 6 shows a display state in the case of an upward gradient in the normal speed range. The three-dimensional display including the vehicle speed chart scroll area 16a and the gradient chart scroll area 17a displays a large number of pacecar roofs when traveling on a road having a gradient, and conversely as shown in FIG. In the case of a downward slope, the roof is hardly displayed. At the same time, the center line 25 displayed on the road equivalent portion is relatively thick and long when going up, and thin and short when going down, so that the degree of gradient can be transmitted to the tribar sensuously. .

  Although this embodiment is a three-dimensional display, since the display can be changed to a two-dimensional display by rotating 90 °, it can be easily performed using a driver aid operation window or a driver aid operation remote controller. It is possible to switch between 2D display and 3D display.

  According to the second embodiment, in addition to the effects of the first embodiment, it is possible to drive on the chassis dynamometer with a sense closer to that of the actual vehicle.

The display block diagram of the monitor display which shows embodiment of this invention. The display block diagram of the monitor display which shows other embodiment of this invention. The state figure at the time of driving | running | working within the normal range of a test vehicle. The state figure at the time of test vehicle delay driving | running | working. The state figure at the time of test vehicle advance traveling. The state figure at the time of the uphill running of a test vehicle. The state figure at the time of the downhill driving | running | working of a test vehicle. Driver's aid configuration diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Test vehicle 2 ... Chassis dynamometer 5 ... Operation room monitor display 6 ... Driver monitor display 10 ... Pace car display area 11 ... Judgment display area 12 ... OK area 13 ... Caution area 14 (14a) ... Foul area 15 ( 15a) ... Driver area 16 (16a) ... Vehicle speed chart scroll area 17 (17a) ... Gradient chart scroll area 18 ... Gradient start countdown area 19, 20, 21, 22 ... Measurement value display 23 ... Start timing display section 24 ... Numerical value display section 25 ... Centerline

Claims (10)

In Driver's Aid where a test vehicle is placed on the chassis dynamometer and the test driver drives the vehicle according to the vehicle speed mode displayed on the monitor display.
A driver having a pacecar display area for displaying a vehicle traveling ahead of the test vehicle and a determination display area for determining a distance between the vehicle displayed in the pacecar display area and the test vehicle on the monitor display. Aid. The driver's aid according to claim 1, wherein the determination display area includes an OK area indicating a correct traveling speed, a caution area indicating a traveling speed caution, and a foul area indicating a foul. 3. The driver's aid according to claim 2, wherein an OK area, a caution area, and a foul area provided in the determination display area are displayed by color. The driver's aid according to claim 1, wherein the determination display area is directly displayed as a numerical value at a rear portion of the vehicle displayed in the pace car display area. The driver's aid according to any one of claims 1 to 4, wherein a slope start countdown area for notifying the start of the slope in the vehicle speed mode is provided on the monitor display. The driver's aid according to any one of claims 1 to 5, wherein the monitor display is provided with a start timing display portion indicating a driving start timing of the test vehicle. The driver's aid according to any one of claims 1 to 6, wherein the display area on the monitor display is a three-dimensional display. The driver's aid according to any one of claims 1 to 7, wherein a center line divided into a predetermined length on the pace car travel path is displayed in the determination display area. The driver's aid according to any one of claims 7 and 8, wherein the center line displayed in the determination display area is configured such that a thickness and a length thereof are variable in accordance with an ascending / descending gradient pattern. The driver's aid according to any one of claims 1 to 9, wherein the foul area is displayed with a caution color when the vehicle speed of the test vehicle enters a foul range.