JP3558272B2 - Inspection method for in-vehicle distance control device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in an inspection method for a vehicle-mounted inter-vehicle distance control device.
[0002]
[Prior art]
As an inspection method of an on-vehicle inter-vehicle distance control device, for example, Japanese Unexamined Utility Model Publication No. 2-14082, “Inspection device of 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 apparatus 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]
[Problems to be solved by the invention]
However, in the above-mentioned technology, the operation state of the vehicle-to-vehicle distance control device alone is simulated through the electric means by using the delay transmission means b and the attenuation means c for the transmission state of the radar wave. In order to confirm the "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.
[0004]
Therefore, an object of the present invention is to provide an inspection method of a vehicle-mounted inter-vehicle distance control device capable of performing a comprehensive inspection with good space efficiency.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an inspection method of an on-vehicle inter-vehicle distance control device according to claim 1 detects an inter-vehicle distance between an own vehicle and a preceding vehicle by a radar, and uses an automatic cruise function and an automatic cruise function by the automatic cruise function. deceleration function and a vehicle inspection method of mounting the vehicle distance control device for maintaining inter-vehicle distance to a predetermined distance by the automatic braking function by the electronic control master power unit, a bench traveling device for placing the vehicles in a running state A shielding means arranged in a position where the radar beam is shielded in front of the platform traveling device , and in a non-detection area of the radar; and a reflection means arranged further in the detection area by the radar beam farther than the shielding means. the provided, placing the vehicle on a table on the travel device, the inter-vehicle distance radar beam in a state shielded, and in a state where the vehicle automatic cruising speed available It activates the control device, by which then reach the beam to release the blocking state to the reflecting means, to activate the automatic deceleration function by sensing the existence of a vehicle ahead, further closer to face the reflecting means in the vehicle direction By moving the vehicle, a sudden approach state with the vehicle ahead is generated, and the automatic braking function is activated.
[0006]
For example, as the inspection conditions, the non-detection area of the radar of the vehicle-to-vehicle distance control device is set to a range of more than 0 m and 5 m in front of the vehicle, and the detection area of the radar is set to a range of more than 5 m and 100 m from the vehicle. In this case, 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. Therefore, if the vehicle is at or above a predetermined vehicle speed (for example, the cruising speed Vc), an automatic cruise function described later will be performed. Can be activated.
Next, when 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, the vehicle-to-vehicle distance control device causes the vehicle-to-vehicle distance to suddenly decrease, the automatic braking function of the vehicle is activated, and the vehicle is decelerated to a predetermined vehicle speed (for example, Vd). You.
[0008]
The operation of the on-vehicle inter-vehicle distance control device can be directly confirmed in a state close to actual traveling, so that a comprehensive inspection as a completed vehicle can be improved.
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]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment 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.
1 is a perspective view of the vehicle-mounted 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 vehicle-mounted 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 in front, 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 24 for automatically performing a brake operation and decelerating the vehicle 10 (hereinafter, performing an automatic brake operation with the electronic control master power unit 24 is referred to as an “automatic braking function”. The information from the cruise control actuator 25 for operating the throttle and accelerating the vehicle, the radar 21, the yaw rate sensor 22, the vehicle speed sensor 23, etc., is supervised, and the electronic control master power unit 24, the cruise control actuator 25, etc. Control that issues commands A knit 26, a display panel 27 for displaying a running condition, and a cruise running (here, "cruise running" means running performed with the on-vehicle inter-vehicle distance control device 20 activated, and this "cruise running" is possible. The main switch 28 shown in FIG. 2 for switching the speed to a “cruise running set speed”, an inter-vehicle setting switch 29 for presetting the inter-vehicle distance between the vehicle 10 and the preceding vehicle during cruising, and a cruise A group of operation switches 31 for canceling acceleration, deceleration and cruise running during running, these main switches 28, an inter-vehicle setting switch 29 and a buzzer 32, and an information unit for displaying various information provided on the display panel 27 shown in FIG. 33, an operation light 34 for displaying that the vehicle is cruising, and a vehicle 10 A warning light 35 actuated by the inter-vehicle distance between both, consisting a brake light 36, 36 shown in FIG. 1 indicating that a decelerating rearward vehicle (one 36 not shown). 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.
[0010]
FIG. 4 is a block diagram of a control system of the vehicle-mounted inter-vehicle distance control device according to the present invention.
First, the mode is switched to cruise running by the main switch 28, a predetermined inter-vehicle distance is set by the inter-vehicle setting switch 29, and the control unit 26 is instructed to perform the predetermined cruising. The deceleration, acceleration or cancellation instruction during cruise travel is performed by the operation switch group 31.
[0011]
Then, information from the radar 21, the yaw rate sensor 22, and the vehicle speed sensor 23 is 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. The status of the electronic control master power unit 24 is fed back.
[0012]
The information of the cruise running is displayed on the information unit 33 by the instruction from the control unit 26, and the operation light 34, the warning light 35, or the brake light 36 is turned on by the instruction from the control unit 26 as appropriate. When the main switch 28, the inter-vehicle setting switch 29 and the operation switch group 31 are operated, the buzzer 32 is sounded by a single sound, and when it is necessary to call the driver's attention, the buzzer 32 is sounded by a continuous sound.
[0013]
FIG. 5 is an operation logic of the vehicle-mounted 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 reference numerals)
LG01: The main switch 28 is turned on in a state where the vehicle 10 is accelerated or decelerated to a cruiseable 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.
[0014]
When the next operation is performed, the setting of the cruise traveling 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.
[0015]
LG02: The radar 21 adds the information from the yaw rate sensor 22 and the vehicle speed sensor 23 to the sensing of the forward information, and determines the forward vehicle C.
At this time, if the speed of the preceding vehicle is slow, the process proceeds to LG03, and if the speed of the preceding vehicle C is fast, the automatic cruise function operates. 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 to decelerate (hereinafter, referred to as "automatic deceleration function"). If the deceleration is not enough, the process proceeds to LG04 or LG05.
[0016]
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 a predetermined inter-vehicle distance cannot be secured, give-up information is issued. That is, the warning light 35 is turned on and the buzzer 32 sounds in a continuous sound to urge the driver to perform a deceleration operation.
[0017]
An inspection device 50 of the on-vehicle inter-vehicle distance control device for inspecting the above-described on-vehicle inter-vehicle distance control device 20 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.
An inspection device 50 (hereinafter, abbreviated as “inspection device 50”) of the on-vehicle inter-vehicle distance control device detects an inter-vehicle distance between the vehicle 10 and a preceding vehicle with the radar 21 and maintains the inter-vehicle distance at a predetermined distance. An inspection device of the distance control device 20, the inspection device 50 includes a tabletop traveling device 51 on which the vehicle 10 is mounted in a traveling state, and a non-detection area H <b> 1 in front of the tabletop traveling device 51 and of the radar 21. And a reflecting means 53 disposed further in front of the shutter 52 and in the detection area H2 of the radar 21. The reflecting means 53 has a predetermined height and a predetermined length. A reflecting plate 53a is provided on the vehicle 10 side so as to be extendable and contractable by the disposed air cylinder device 53b.
[0018]
The vehicle 10 is maintained at a predetermined vehicle speed ( for example, when the cruise traveling speed is Vc, for example, Vc = 65 km / h) while the shutter 52 is projected and the beam 21a of the radar 21 is blocked, and FIG. Is turned on, the operation of the operation switch group 31 is confirmed. 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, by retracting the shutter 52 and allowing 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 according to the inter-vehicle distance to the preceding vehicle.
[0019]
Further, by moving the reflection plate 53a closer to the vehicle 10, the inter-vehicle distance becomes a sudden approaching state, the electronic control master power unit 24 shown in FIG. 1 is activated, and the automatic braking function is activated. When the vehicle speed at which the automatic braking function is released is set to Vd, the vehicle speed is set to release at Vd = 60 km / h or less.
[0020]
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 of the vehicle, and the detection area H2 of the radar 21 is set to a range of more than 5 m and 100 m of the vehicle. In this case, the shutter 52 is set in a range of more than 0 m and 5 m from the vehicle 10, and the reflector 53 is set in a range of more than 5 m and 100 m from the vehicle 10 (here, the shutter is set at about 1 m in front of the vehicle 10). 52, and the origin position A of the reflection plate 53a is set at about 6 m).
[0021]
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, if 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.
[0022]
In (b), if the shutter 52 is retracted and the laser beam 21a reaches the reflector 53, the vehicle-to-vehicle distance control device 20 has detected the preceding vehicle in the detection area H2, and the predetermined auto cruise program is executed. Therefore, deceleration can be obtained by automatically closing the throttle according to the following distance (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).
[0023]
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 an inspection method of the vehicle-mounted inter-vehicle distance control device. STxx indicates a step number. (Refer to Fig. 5 for reference numbers)
ST11: The vehicle 10 is caused to enter the tabletop traveling device 51.
ST12: The operation of the platform 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, is V ≧ Vc (for example, Vc = 65 km / h)? If NO, the vehicle speed is 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.
[0024]
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. In the case of YES, the process proceeds to ST18.
ST18: Press the headway distance setting switch.
ST19: The shutter 52 is retracted.
ST20: Is the reflection plate 53a at the origin position A? In the case of YES, 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.
[0025]
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. In the case of YES, the process also proceeds to ST22.
ST26: Whether the vehicle speed has become 0 km / h. (The running of the vehicle 10 is completely stopped by the brake operation.) If YES, proceed to ST27, and if NO, repeat ST26.
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 travel and exit.
[0026]
As described above, the inspection device 50 can directly confirm the operation of the on-vehicle inter-vehicle distance control device 20 in a state close to the actual cruise running, so that the comprehensive inspection as a completed vehicle can be improved. it can.
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.
[0027]
In the embodiment, as shown in FIG. 4, the shutter 52 is disposed so as to be tiltable, but any shutter that can shield the laser beam 21a of the radar 21 may be used. That is, it may be moved up and down, or may be moved laterally left and right.
[0028]
【The invention's effect】
The present invention has the following effects by the above configuration.
According to the first aspect of the present invention, there is provided a table-top traveling device on which a vehicle is mounted in a running state, shielding means disposed at a position for blocking a radar beam in front of the table-top traveling device and in a non-detection area of the radar. Reflection means arranged further in the detection area of the radar beam farther than the shielding means , the vehicle is mounted on a tabletop traveling device, and the radar beam is shielded , and the vehicle is set to automatic cruise traveling speed In this state, the inter-vehicle distance control device is actuated, then the blocking state is released and the beam reaches the reflecting means, thereby detecting the presence of the preceding vehicle and activating the automatic deceleration function. By causing the vehicle to move close to the vehicle, a sudden approach state with the vehicle ahead is generated, and 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 running, 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 apparatus 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 from arrow 2 in FIG. 1. FIG. 3 is a front view of a display panel of the on-vehicle inter-vehicle distance control device according to the present invention. FIG. 5 is a block diagram of a control system of the vehicle-mounted inter-vehicle distance control device according to the present invention. FIG. 5 is an operation logic of the vehicle-mounted inter-vehicle distance control device according to the present invention. FIG. 7 is an explanatory diagram of an operation of the inspection device of the vehicle-mounted inter-vehicle distance control device according to the present invention.
DESCRIPTION OF SYMBOLS 10 ... vehicle, 20 ... in-vehicle inter-vehicle distance control apparatus, 21 ... radar, 21a ... beam, 50 ... inspection apparatus, 51 ... tabletop traveling apparatus, 52 ... shielding means (shutter), 53 ... reflection means.

Claims (1)

The inter-vehicle distance between the host vehicle and the preceding vehicle is detected by radar installed in the vehicle, and the inter-vehicle distance is maintained at a predetermined distance by an automatic cruise function, an automatic deceleration function by the automatic cruise function, and an automatic braking function by the electronic control master power unit. An inspection method of a vehicle equipped with an inter-vehicle distance control device,
A bench traveling device for placing the vehicles in a running state, and blocking means in a position for shielding the beam of the radar in front, and arranged in the non-detection area of the radar of the bench traveling apparatus, the shield means Reflection means disposed further in the detection area by the beam of the radar further away,
The vehicle is mounted on the platform running device, the inter-vehicle distance control device is operated in a state where the radar beam is shielded , and the vehicle is set to an automatic cruise traveling speed, and then the shielding state is set. To allow the beam to reach the reflecting means, thereby detecting the presence of the preceding vehicle and activating the automatic deceleration function, and further causing the reflecting means to move closer to the vehicle in the direction of the vehicle. A method for inspecting an on-vehicle inter-vehicle distance control device, characterized by generating a sudden approach state with the vehicle and activating the automatic braking function.

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