JP2001091412A - Inspection method for on-vehicle inter-vehicle distance controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve general inspection for a completed vehicle by directly checking an action of an on-vehicle inter-vehicle distance controller through a condition close to an actual traveling condition. SOLUTION: A shield means 52 is protruded so as to face a non-detection area by a radar 2 on a vehicle 10, and a predetermined speed for operating an one-vehicle inter-vehicle distance controller 20 with a beam 21a from the radar 21 shut off. Then, when the shielding condition is released and the beam 21 reaches a reflecting means 53, presence of a forward vehicle is detected and an automatic deceleration function is actuated, and the reflecting means 53 is moved to be brought close to the vehicle opposedly, so that a quick approaching condition to the forward vehicle is generated and an automatic brake function is actuated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an inspection method for a vehicle-to-vehicle distance control device.

[0002]

2. Description of the Related Art As an inspection method of an on-vehicle inter-vehicle distance control device, for example, Japanese Unexamined Utility Model Publication No. 2-14082, entitled "Inspection device for vehicle distance measurement device" is known. According to FIG. 1 of the publication, the above-mentioned technique includes a receiving means a for receiving a radar wave emitted from the measuring apparatus main body 1, and a radar wave emitted from the measuring apparatus main body 1 is provided downstream of the receiving means a. A delay transmission means b capable of transmitting at the same timing as when reciprocating in a distance is provided, and a radar wave emitted from the measuring device main body 1 is provided downstream of the delay transmission means b in the same attenuation state as when reciprocating a predetermined distance. In order to reduce the size of the inspection apparatus, an attenuating means c is provided.

[0003]

However, in the above-mentioned technology, the operation state of the vehicle-to-vehicle distance control device alone is changed via the electric means by using the delay transmission means b and the attenuation means c to determine the transmission state of the radar wave. To simulate,
In order to confirm the "actual operating state of the on-vehicle inter-vehicle distance control device" as a completed vehicle, a comprehensive inspection method including the running state is desired.

It is an object of the present invention to provide an inspection method for a vehicle-to-vehicle inter-vehicle distance control device, which is capable of performing a comprehensive inspection with good space efficiency.

[0005]

According to a first aspect of the present invention, there is provided an inspection method for an on-vehicle inter-vehicle distance control device, comprising detecting an inter-vehicle distance between a host vehicle and a preceding vehicle by a radar, An inspection method of an inter-vehicle distance control device that maintains the inter-vehicle distance at a predetermined distance by a deceleration function and an automatic braking function, the inspection method of the inter-vehicle distance control device includes a platform traveling device that mounts a vehicle in a traveling state. A shielding means disposed at a position in front of the platform traveling device for shielding the radar beam; and a reflection means disposed farther than the shielding means in a detection area by the radar beam, the shielding means comprising: Projecting the means facing the non-detection area of the radar of the vehicle, maintaining the speed of the vehicle at a predetermined speed at which the inter-vehicle distance control device operates with the radar beam blocked, and By releasing the blocking state and allowing the beam to reach the reflecting means, the presence of the preceding vehicle is sensed, the automatic deceleration function is activated, and the reflecting means is moved closer to the vehicle in the direction of the vehicle. The automatic braking function is activated by generating a sudden approaching state with a vehicle ahead.

For example, as an inspection condition, the non-detection area of the radar of the on-vehicle inter-vehicle distance control device exceeds 0 m in front of the vehicle to 5 m.
And the radar detection area is set to a range of more than 5 m and 100 m from the vehicle,
The shielding means is provided in a range of more than 0 m and 5 m from the vehicle, and the reflection means is provided in a range of more than 5 m and 100 m from the vehicle.

[0007] If the beam is blocked in the non-detection area, the on-vehicle inter-vehicle distance control device does not detect the preceding vehicle.
If the vehicle speed is equal to or higher than a predetermined vehicle speed (for example, Vc), an automatic cruise function described later can be activated. Next, if the blocking state by the shielding means is released and the beam reaches the reflecting means, the vehicle-mounted inter-vehicle distance control device senses the preceding vehicle in the detection area, and maintains the inter-vehicle distance according to a predetermined program. Deceleration by the automatic deceleration function. Further, by moving the reflecting means closer to the vehicle side, the vehicle-to-vehicle distance control device suddenly reduces the distance between the vehicle and the vehicle in front, and the automatic braking function of the vehicle is activated.
The speed is reduced to a predetermined vehicle speed (for example, Vd).

[0008] Since the operation of the vehicle-to-vehicle distance control device can be directly confirmed in a state close to actual running, it is possible to improve comprehensive inspection as a completed vehicle. Since the reflection means can be arranged at a position close to the vehicle body, the inspection device can be accommodated in a predetermined space, and the inspection line can be shortened.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is a perspective view of an on-vehicle inter-vehicle distance control device according to the present invention, FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1, and FIG. 3 is a front view of a display panel of the on-vehicle inter-vehicle distance control device according to the present invention. is there. The on-vehicle inter-vehicle distance control device 20 includes a radar 21 for searching for a vehicle ahead, a rotation about a vertical axis of the vehicle 10, that is, a yaw rate sensor 22 for detecting yawing, and a vehicle speed of the vehicle 10 as shown in FIG. A vehicle speed sensor 23 for detecting, and an electronic control master power unit 2 for automatically performing a brake operation and decelerating the vehicle 10
4 (hereinafter, automatically performing the brake operation by the electronic control master power unit 24 is referred to as an “automatic braking function”), a cruise control actuator 25 for operating the throttle and accelerating the vehicle, and the radar 2.
1, supervising information from the yaw rate sensor 22 and the vehicle speed sensor 23, etc .;
A control unit 26 for issuing an operation command to the cruise control actuator 25 and the like, a display panel 27 for displaying a running state, and a cruise running (here, “cruise running” is performed with the on-vehicle inter-vehicle distance control device 20 activated). The main switch 28 shown in FIG. 2 for switching the speed at which "cruise running" is possible to "the cruise running set speed", and the inter-vehicle distance between the vehicle 10 and the preceding vehicle during cruising. , A group of operation switches 31 for canceling acceleration, deceleration, and cruise running during cruising, main switch 28, headway setting switch 29 and buzzer 32, and a display panel shown in FIG. 2
7, an information unit 33 for displaying various information, an operation light 34 for displaying that the vehicle is cruising, a warning light 35 for operating depending on the distance between the vehicle 10 and the preceding vehicle during the cruising, and a rear vehicle. The brake lights 36, 36 (one 36 not shown) shown in FIG. In FIG. 2, reference numeral 37 denotes an acceleration switch of the operation switch group 31, 38 denotes a deceleration switch, and 39 denotes a cancel switch. An imaginary line (two-dot chain line) shown in FIG. 1 indicates the laser beam 21 a of the radar 21. Further, the electronic control master power unit 24 includes a hydraulic pressure sensor 24a and a linear solenoid 24b.

FIG. 4 is a block diagram of a control system of the vehicle-to-vehicle distance control apparatus according to the present invention. First, the main switch 28 is used to switch to cruise traveling, and the headway setting switch 2 is set.
9 to set a predetermined inter-vehicle distance.
6 is instructed to run a predetermined cruise. The deceleration, acceleration, or cancellation instruction during cruise travel is performed by the operation switch group 31.

Then, information from the radar 21, the yaw rate sensor 22, and the vehicle speed sensor 23 are input to the control unit 26, and an operation command is output from the control unit 26 to the electronic control master power unit 24 and the cruise control actuator 25. Further, the status of the electronic control master power unit 24 is fed back.

The information of the cruise running is displayed on the information unit 33 according to the instruction from the control unit 26, and the operation light 34, the warning light 35 or the brake light 36 is turned on at the appropriate time according to the instruction from the control unit 26.
When the main switch 28, the inter-vehicle setting switch 29, and the operation switch group 31 are operated, the buzzer 32 sounds a single sound, and when it is necessary to call the driver's attention, the buzzer 32 sounds a continuous sound.

FIG. 5 shows the operation logic of the on-vehicle inter-vehicle distance control device according to the present invention. Note that LGxx indicates a logic number. (Refer to FIG. 1 and FIG. 2 for symbols) LG01: The main switch 28 is turned on in a state where the vehicle 10 is accelerated or decelerated to a cruise traveling speed by an accelerator operation. The vehicle speed at this time becomes the cruise traveling set speed. Then, an appropriate inter-vehicle distance S is selected by the inter-vehicle setting switch 29, and sensing of forward information by the radar 21 is started. The inter-vehicle distance can be set to one of three modes.

When the next operation is performed, the cruise setting is canceled. That is, when the main switch 28 is turned off, when the cancel switch 39 is pressed, when the brake pedal is depressed, and when the accelerator pedal is depressed. However, when the accelerator pedal is depressed, the vehicle automatically returns to cruise running when the depression is released. In the following cases, the control unit 26 makes a judgment and disables cruise travel. That is, when the radar 21 is dirty, and when the radar 21 is inoperable due to bad weather such as rain, snow or fog.

LG02: The information from the yaw rate sensor 22 and the vehicle speed sensor 23 is added to the sensing of the forward information by the radar 21, and the preceding vehicle C is determined. At this time, if the speed of the preceding vehicle is slow, the process proceeds to LG03, and the preceding vehicle C
When the speed is high, the automatic cruise function works. That is, traveling at the cruise traveling set speed is referred to as “automatic cruise function”. LG03: An operation command is output from the control unit 26 to the cruise control actuator 25, and the throttle is throttled and decelerated (hereinafter referred to as "automatic deceleration function").
). If the deceleration is not enough, the process proceeds to LG04 or LG05.

LG04: An operation command is output from the control unit 26 to the electronic control master power unit 24, the automatic braking function is activated, and the deceleration of the vehicle 10 is started. LG05: While controlling the LG04, when the preceding vehicle C approaches and cannot maintain a predetermined inter-vehicle distance, give-up information is issued. That is, the warning light 35 is turned on and the buzzer 32 is sounded in a continuous sound to urge the driver to perform a deceleration operation.

The vehicle-to-vehicle distance control apparatus 20 described above
Inspection device 50 of the vehicle-to-vehicle distance control device for inspecting the vehicle
Will be described. 6 (a) and 6 (b) are principle diagrams of an inspection device for an on-vehicle inter-vehicle distance control device according to the present invention, where (a) is a front view and (b) is a plan view of a main part. The inspection device 50 of the on-vehicle inter-vehicle distance control device (hereinafter, abbreviated as “inspection device 50”) uses the radar 21 to determine the inter-vehicle distance between the vehicle 10 and the preceding vehicle.
And an inspection device for the vehicle-to-vehicle inter-vehicle distance control device 20 for detecting the vehicle distance and maintaining the inter-vehicle distance at a predetermined distance.
Is a table-top traveling device 51 on which the vehicle 10 is mounted in a traveling state.
And a shutter 52 as shielding means disposed in front of the platform traveling device 51 and in the non-detection area H1 of the radar 21.
And the reflection means 53 disposed further in front of the shutter 52 and in the detection area H2 of the radar 21. The reflection means 53 is provided at a predetermined height and by an air cylinder device 53b disposed in the front-rear direction. , A reflector plate 53a attached to the vehicle 10 so as to be stretchable.

When the shutter 52 is projected and the beam 21a of the radar 21 is shielded, the vehicle 10 is moved at a predetermined speed (for example, when the predetermined speed is Vc, for example, Vc = 65 km /
h), the main switch 2 shown in FIG.
8 is turned on to confirm the operation of the operation switch group 31, and if the operation is normal, the inter-vehicle setting switch 29 is pressed, and the inter-vehicle distance is detected by the radar 21. Next, the shutter 52
To cause the beam 21a to reach the reflecting plate 53a, for example, when there is a preceding vehicle, an automatic deceleration state of the vehicle 10 is generated in accordance with the inter-vehicle distance to the preceding vehicle.

Further, when the reflecting plate 53a is moved closer to the vehicle 10, the inter-vehicle distance becomes rapidly approaching.
The electronic control master power unit 24 shown in FIG.
Activate the automatic braking function. Here, when the vehicle speed at which the automatic braking function is released is Vd, here, Vd
= 60 km / h or less.

For example, the non-detection area H1 of the radar 21 of the on-vehicle inter-vehicle distance control device 20 is set to a range of more than 0 m and 5 m from the vehicle, and the detection area H2 of the radar 21 is set to a range of more than 5 m and 100 m from the vehicle. In the case of the vehicle, the shutter 52 is set in a range of more than 0 m and 5 m from the vehicle 10, and the reflector 5 is set in a range of more than 5 m and 100 m from the vehicle 10.
3 (here, the shutter 52 is provided at about 1 m in front of the vehicle 10 and the origin position A of the reflector 53a is set at about 6 m).

Next, the operation of the inspection device 50 will be described. FIGS. 7A to 7C are operation explanatory diagrams of the inspection device of the vehicle-mounted inter-vehicle distance control device according to the present invention. In (a), the vehicle is accelerated to a predetermined cruise traveling set speed. Since the laser beam 21a is shielded by the non-detection area H1, the on-vehicle inter-vehicle distance control device 20 determines that there is no preceding vehicle. Therefore, when the main switch 28 (see FIG. 2) is turned on at the cruise traveling set speed, the vehicle 10 maintains the cruise traveling set speed Vc or higher.

In (b), if the shutter 52 is retracted and the laser beam 21a reaches the reflecting plate 53, the vehicle-to-vehicle distance control device 20 senses the preceding vehicle in the detection area H2, and a predetermined auto The deceleration can be obtained by automatically closing the throttle according to the distance between vehicles according to the cruise program (automatic deceleration function). In (c), by moving the reflection plate 53a closer to the vehicle 10 side, the on-vehicle inter-vehicle distance control device 20 considers, for example, that the inter-vehicle distance with the preceding vehicle has sharply decreased, and the automatic braking function of the vehicle 10 is reduced. It operates and is decelerated to a predetermined vehicle speed (for example, Vd).

FIG. 8 is a flowchart of an inspection method of the vehicle-mounted inter-vehicle distance control device according to the present invention, and shows an example of the inspection method of the vehicle-mounted inter-vehicle distance control device. STxx indicates a step number. (Refer to FIG. 5 for reference numerals) ST11: The vehicle 10 enters the tabletop traveling device 51. ST12: The operation of the tabletop traveling device 51 is started. ST13: Is the shutter 52 protruding? If NO, proceed to ST13, if YES, proceed to ST14. ST14: The shutter 52 is protruded. ST15: When the vehicle speed is V and the cruise traveling speed is Vc, is the vehicle speed V reaching the cruising traveling speed? That is, V ≧ Vc (for example, Vc = 65 km / h
Set to). If NO, the vehicle speed is once again set to the cruise traveling range. If YES, the process proceeds to ST16. ST16: The main switch 28 of the on-vehicle inter-vehicle distance control device 20 is turned on.

ST17: Does the operation switch group 31 operate? By operating the operation switch group 31, the basic operation of the cruise control is confirmed. If NO, it is determined that a failure has occurred, the inspection is stopped, and the process proceeds to ST27. ST18 if YES
Proceed to. ST18: Press the headway setting switch. ST19: The shutter 52 is retracted. ST20: Is the reflection plate 53a at the origin position A? YES
In the case of, the process proceeds to ST21, and in the case of NO, the process proceeds to ST22. ST21: The reflecting plate 53a is moved closer. ST22: Return the reflection plate 53a to the origin position A. ST23: Whether the automatic deceleration function and the automatic brake function operate and decelerate. If NO, it is determined that a failure has occurred, the inspection is stopped, and the process proceeds to ST27. In the case of YES, the process proceeds to ST24.

ST24: Has the vehicle decelerated to a vehicle speed (Vd; for example, Vd = 60 km / h) at which the automatic braking function is released? ST25: Does the automatic brake function stop? If NO, it is determined that a failure has occurred, the inspection is stopped, and the process proceeds to ST27. YE
In the case of S, the process also proceeds to ST22. ST26: Is the vehicle speed 0 km / h? (The traveling of the vehicle 10 is completely stopped by the brake operation.) If YES, the process proceeds to ST27, and if NO, ST26 is repeated. ST27: Check whether a warning has been issued or not. ST28: The platform traveling device 51 is stopped. ST29: The vehicle 10 is caused to run and exit.

As described above, the inspection device 50
The operation of the on-vehicle inter-vehicle distance control device 20 can be directly confirmed in a state close to actual cruise traveling, so that a comprehensive inspection as a completed vehicle can be improved. Further, the inspection apparatus 50 does not need to move the reflection means 53, so that it can be accommodated in a predetermined space, and the inspection line can be shortened.

In the embodiment, as shown in FIG. 4, the shutter 52 is disposed so as to be tiltable. However, any shutter can be used as long as it can shield the laser beam 21a of the radar 21. That is,
It may be one that moves up and down, or one that moves laterally left and right.

[0028]

According to the present invention, the following effects are exhibited by the above configuration. A table-top traveling device for mounting a vehicle in a traveling state, shielding means disposed at a position in front of the table-top traveling device for shielding a beam of the radar, and the radar further away from the shielding means. Reflecting means disposed in a detection area by the beam, and projecting the shielding means so as to face a non-detection area of the radar of the vehicle. By maintaining a predetermined speed at which the control device operates, then releasing the shielding state and allowing the beam to reach the reflecting means,
Detecting the presence of the preceding vehicle, activating the automatic deceleration function, and further causing the reflecting means to approach and move in the direction of the vehicle, thereby generating a sudden approaching state with the preceding vehicle,
The automatic braking function is activated. Therefore, the operation of the on-vehicle inter-vehicle distance control device can be directly confirmed in a state close to the actual traveling, so that the comprehensive inspection as a completed vehicle can be improved. Further, since there is no need to move the reflection means, the inspection device can be accommodated in a predetermined space, and the inspection line can be shortened.

[Brief description of the drawings]

FIG. 1 is a perspective view of an on-vehicle inter-vehicle distance control device according to the present invention.

FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1;

FIG. 3 is a front view of a display panel of the on-vehicle distance control device according to the present invention.

FIG. 4 is a block diagram of a control system of the on-vehicle inter-vehicle distance control device according to the present invention.

FIG. 5 is an operation logic of the vehicle-to-vehicle distance control device according to the present invention;

FIG. 6 is a principle diagram of an inspection device of the vehicle-to-vehicle distance control device according to the present invention;

FIG. 7 is an explanatory diagram of the operation of the inspection device of the on-vehicle inter-vehicle distance control device according to the present invention.

FIG. 8 is a flowchart of an inspection method of the vehicle-to-vehicle distance control device according to the present invention;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... vehicle, 20 ... vehicle-to-vehicle inter-vehicle distance control device, 21 ... radar, 21a ... beam, 50 ... inspection device, 51 ... tabletop traveling device, 52 ... shielding means (shutter), 53 ... reflection means.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G01S 13/93 Z (72) Inventor Fumio Shibano 1-10-1 Shinsayama, Sayama-shi, Saitama Honda Motor Co., Ltd. F-term in Saitama Factory (reference) 5J070 AB01 AC02 AE01 AF03 AK40 BF02

Claims (1)

[Claims] An inspection method of an inter-vehicle distance control device which is mounted on a vehicle, detects an inter-vehicle distance between a host vehicle and a preceding vehicle with a radar, and maintains the inter-vehicle distance at a predetermined distance by an automatic deceleration function and an automatic brake function. The inspection method of the inter-vehicle distance control device includes a table-top traveling device that mounts the vehicle in a traveling state, a shielding unit disposed at a position in front of the table-top traveling device to block the radar beam, A reflection unit disposed farther than the shielding unit in a detection area of the radar beam, wherein the shielding unit projects toward the non-detection area of the radar of the vehicle to shield the radar beam. In this state, the speed of the vehicle is maintained at a predetermined speed at which the inter-vehicle distance control device operates, and then the presence of the preceding vehicle is determined by releasing the blocking state and allowing the beam to reach the reflecting means. The automatic deceleration function is actuated and the reflecting means is moved in opposition to the vehicle in the direction of the vehicle, thereby generating a sudden approach state with the preceding vehicle and activating the automatic braking function. Inspection method of the on-vehicle distance control device.