JP2001199262A - Display device in vehicle travel controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device in a vehicle travel controller allowing a grasp of travel control contents of follow-up travel control or constant-speed travel control. SOLUTION: The vehicle travel controller is provided with a follow-up travel controlling means measuring an inter-vehicle distance to a preceding vehicle by means of an inter-vehicle distance measuring means and controlling a vehicle speed for keeping the measured inter-vehicle distance at a predetermined distance and a constant-speed travel controlling means controlling travel at a predetermined speed when no preceding vehicle is captured. The vehicle travel controller is also provided with display means 41, 62 displaying the set speed in a position visible to a driver of the vehicle when the predetermined vehicle speed is set and displaying that the travel controller is in operation and the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling control device for a vehicle, and more particularly, to a display device for displaying control contents during traveling control.

[0002]

[Related Background Art] In order to reduce the driving operation of an automobile, a constant speed traveling device (such as a cruise control system) for performing a constant speed traveling control has been put into practical use, and an inter-vehicle distance control device for performing a tracking traveling control has been developed. ing. When the set switch is set, the vehicle equipped with the constant speed traveling device travels while maintaining the set vehicle speed even when the foot is released from the accelerator pedal. The set vehicle speed can be changed by operating the operation switch, and is canceled when the driver steps on the brake pedal.

On the other hand, a vehicle provided with an inter-vehicle distance control device
When the set switch is pressed, the set inter-vehicle distance is calculated from the vehicle speed at that time, and the inter-vehicle distance with the preceding vehicle is detected by the inter-vehicle distance measuring device (camera, radar, etc.). By controlling the engine output and brakes to achieve the set inter-vehicle distance, the vehicle follows the preceding vehicle and runs.

[0004]

Some vehicles have both a constant-speed traveling device and an inter-vehicle distance control device. In such a vehicle, both the constant-speed traveling control and the tracking traveling control are performed. May be performed at the same time. When the constant-speed traveling control and the tracking traveling control are simultaneously performed, the tracking traveling control is preferentially performed when there is a preceding vehicle, and the constant-speed traveling control operates when there is no preceding vehicle. Therefore, when the set vehicle speed for the constant speed traveling is set in advance, when the preceding vehicle deviates from the lane by performing a course change or the like during the tracking traveling, and then switches to the constant speed traveling control, the vehicle speed becomes higher. Will return to the set vehicle speed.

At this time, it is good if there is not much difference between the set vehicle speed and the vehicle speed when the preceding vehicle disappears. However, while the set vehicle speed is set higher, the vehicle speed when the preceding vehicle disappears is low. In some cases, since the difference from the set vehicle speed is large, the constant-speed traveling device automatically controls the vehicle for a long time until the set vehicle speed is reached.

[0006] When the acceleration control is automatically continued as described above, a driver who does not grasp the traveling control state feels uneasy about unintended acceleration. The present invention has been made based on the above circumstances, and an object of the present invention is to provide a display device in a vehicle travel control device capable of grasping the content of travel control of tracking travel control and constant speed travel control. is there.

[0007]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, an inter-vehicle distance with a preceding vehicle is measured by an inter-vehicle distance measuring means, and the measured inter-vehicle distance is determined to be a predetermined distance. The traveling speed control device for controlling the vehicle speed, and a constant speed traveling control device that travels at a preset vehicle speed when the preceding vehicle is not captured. And a display means for displaying the set vehicle speed at a position visible to the driver of the vehicle and displaying that the travel control device is operating.

Therefore, when the set vehicle speed is set and the tracking travel control or the constant speed travel control is being performed, it is clear that the set vehicle speed and the travel control device are operating at a position visible to the driver of the vehicle. It is displayed and the running control state is easy to understand. Thereby, the driver of the vehicle can easily and surely grasp that the set vehicle speed and the travel control device are operating.

According to the second aspect of the present invention, the following distance measuring means measures the following distance with the preceding vehicle by the following distance measuring means, and controls the vehicle speed so that the measured following distance becomes a predetermined distance. When the preceding vehicle is not captured, the traveling control device for the vehicle includes a constant speed traveling control unit that travels at a preset vehicle speed.The inter-vehicle distance measuring unit recognizes the preceding vehicle, and the set vehicle speed is set. And a display means for displaying the set vehicle speed at a position visible to the driver of the vehicle and displaying the presence or absence of the preceding vehicle recognized by the inter-vehicle distance measuring means.

Therefore, when the set vehicle speed is set and the tracking travel control or the constant speed travel control is performed, the set vehicle speed and the presence or absence of the preceding vehicle are clearly displayed at a position visible to the driver of the vehicle, and the travel control is performed. The state is easy to understand. This allows
The driver of the vehicle can easily and surely grasp the set vehicle speed and the presence or absence of the preceding vehicle. Further, in the invention of claim 3, the following distance measurement means measures the following distance with the preceding vehicle by the following distance measuring means, and controls the vehicle speed so that the measured following distance becomes a predetermined distance. When the vehicle is not captured, the vehicle travel control device includes a constant-speed travel control unit that travels at a preset vehicle speed.When the vehicle speed is set, the vehicle is located at a position where the driver of the vehicle can visually recognize the vehicle. A display means for displaying the set vehicle speed and displaying the inter-vehicle distance is provided.

Therefore, when the set vehicle speed is set and the tracking travel control or the constant speed travel control is performed, the set vehicle speed and the inter-vehicle distance are clearly displayed at a position visible to the driver of the vehicle, and the travel control state is displayed. Easy to understand. Thereby, the driver of the vehicle can easily and surely grasp the set vehicle speed and the following distance. Further, in the invention according to claim 4, the following distance measuring means measures the following distance with the preceding vehicle by the following distance measuring means, and controls the vehicle speed so that the measured following distance becomes a predetermined distance. When the vehicle is not captured, the vehicle travel control device includes a constant-speed travel control unit that travels at a preset vehicle speed.When the vehicle speed is set, the vehicle is located at a position where the driver of the vehicle can visually recognize the vehicle. A display means for displaying a set vehicle speed and displaying an approaching state to the preceding vehicle when the inter-vehicle distance becomes equal to or less than the predetermined distance.

Accordingly, when the set vehicle speed is set and the tracking travel control or the constant speed travel control is performed, the approach state with the preceding vehicle when the set vehicle speed or the inter-vehicle distance becomes equal to or less than the predetermined distance is determined by the vehicle. Is clearly displayed at a position visible to the driver, and the driving control state is easy to understand. Thereby, the driver of the vehicle can easily and surely grasp the approaching state to the preceding vehicle when the set vehicle speed or the inter-vehicle distance becomes equal to or less than the predetermined distance.

[0013] In the invention of claim 5, the inter-vehicle distance measuring means measures the inter-vehicle distance with the preceding vehicle, and the tracking travel control means controls the vehicle speed so that the measured inter-vehicle distance becomes a predetermined distance. When the preceding vehicle is not captured, the traveling control device for the vehicle includes a constant speed traveling control unit that travels at a preset vehicle speed.The inter-vehicle distance measuring unit recognizes the preceding vehicle, and the set vehicle speed is set. Display means for schematically displaying the preceding vehicle and displaying the set vehicle speed at a position visible to the driver of the vehicle when the preceding vehicle is recognized by the inter-vehicle distance measuring means. It is characterized by:

Therefore, when the set vehicle speed is set and the tracking traveling control or the constant speed traveling control is performed, the preceding vehicle is schematically displayed at a position visible to the driver of the vehicle, and the set vehicle speed is clearly displayed. Is displayed on the display, and the traveling control state is easy to understand. As a result, the driver of the vehicle can very easily and surely grasp the presence or absence of the preceding vehicle, and can easily and reliably grasp the set vehicle speed.

[0015]

FIG. 1 is a system configuration diagram of a travel control device. Hereinafter, the configuration of the travel control device and the display device in the travel control device will be described with reference to FIG. The travel control device is provided with a main control device (ECU) 2 that controls travel. A control power switch 1 for starting the ECU 2 is provided on the input side of the ECU 2.
1, a CCD camera (not shown) provided at the front of the vehicle, a scanning type laser radar (not shown), etc., for confirming the preceding vehicle and determining the current inter-vehicle distance DS between the preceding vehicle and the own vehicle. An inter-vehicle distance measuring device 12 for measuring, a traveling lane recognizing device 14 mainly composed of a CCD camera for confirming a traveling lane, a vehicle speedometer 16 for measuring a current vehicle speed VS, a start command and a release command for traveling control, An operation switch 18 for inputting an inter-vehicle time TC and a set vehicle speed Vm to be described later.
And various sensor switches 20 including a throttle sensor, a wheel speed sensor, a steering angle sensor, a warning switch (indicated by reference numeral 54 in FIG. 2), and the like.

On the other hand, a throttle actuator 30, an automatic transmission (A / T) 32, a brake actuator 34 and the like are connected to the output side of the ECU 2, and these are operated based on an input signal from the input side. It has become. On the output side of the ECU 2, an indicator (display means) 40 which is provided on an instrument panel (reference numeral 50 in FIG. 2) in front of the driver's seat and displays a running control state is connected. The traveling control state can be easily confirmed.

The interior of the ECU 2 is divided into four processing units, an input processing unit 4, a control state calculation unit 6, a control content calculation unit 8, and a display content calculation unit 10, as shown in FIG. Inter-vehicle distance measurement device 12, traveling lane recognition device 14,
Input signals supplied from the vehicle speedometer 16, the operation switches 18, and the various sensor switches 20 are processed by the input processing unit 4 and the control state calculation unit 6 into output signals in the control content calculation unit 8 or the display content calculation unit 10. Is output. The control content calculation unit 8 outputs a drive signal to the throttle actuator 30, the A / T 32, and the brake actuator 34, and the display content calculation unit 10 outputs a display signal to the display 40.

FIG. 2 schematically shows the periphery of the instrument panel 50 in the driver's seat. As shown in the figure,
The instrument panel 50 includes the control power switch 11, the warning switch 54, the combination meter 60 having a function as the display 40, the center message display 41, and the like. The warning switch 54 is a switch for operating an inter-vehicle distance warning buzzer (not shown) for notifying by a warning sound that the preceding vehicle has approached and the current inter-vehicle distance DS has become small.

The lever-type operation switch 18 is provided on a steering wheel 56 extending from the lower part of the instrument panel 50 toward the driver. The operation switch 18 can perform an operation of increasing a set vehicle speed Vm and an operation of decreasing the inter-vehicle time TC by raising the operation, and input (set) a driving control start command (set) and a setting vehicle speed Vm described below by lowering the operation. Can be performed, the operation for increasing the inter-vehicle time TC, and the operation for returning to the set vehicle speed Vm (resume operation) can be performed. By operating the vehicle forward, a command to cancel the travel control can be input (canceled). I have.

The combination meter 60 has, as display functions, a running control operation indicating lamp 62 for indicating whether or not the running control is being performed and a warning buzzer operating lamp 64 for indicating whether or not the inter-vehicle distance warning buzzer is operating.
Is provided. Also, the center message display 41 has a set vehicle speed display section 42 for displaying the set vehicle speed Vm in a line drawing schematically showing the outline of the vehicle, and a current vehicle speed display section 42 between two arrows pointing away from each other. Inter-vehicle distance D
An inter-vehicle distance display section 44 for displaying S, a preceding vehicle display section 46 for displaying the presence or absence of a preceding vehicle by a line drawing schematically showing the outline of the rear portion of the vehicle, and a warning lamp 48 are provided.
The set vehicle speed Vm displayed on the set vehicle speed display section 42 is limited to the set range (for example, 40 to 105 km / h).
In addition, the current inter-vehicle distance DS displayed on the inter-vehicle distance display section 44 is limited to a predetermined distance D1 (for example, 99 m) that needs to be displayed.

FIG. 3 is a flowchart showing a control routine of the traveling control executed by the ECU 2. Hereinafter, the control outline of the traveling control device configured as described above will be described with reference to FIG. In step S10, the ignition O
After N, various internal values of the controller are initialized based on the system power being turned on. When step S10 ends, a fixed control cycle ts (for example, 26 msec)
A main routine process that is repeated every time is performed. The processing of the main routine will be described below.

In step S12, a timer for measuring the control cycle ts is reset. In step S14, the following distance measuring device 12, the traveling lane recognition device 14,
Various input signals supplied from the vehicle speedometer 16, the operation switches 18 and the various sensor switches 20 are arithmetically processed. Specifically, reading of a signal from the operation switch 18, calculation of the vehicle speed VS, calculation of the throttle opening, calculation of the wheel speed,
Calculation of steering angle, calculation of estimation of curvature (R) of road,
Acquisition of image controller data from the CCD camera is performed.

In the next step S16, data of the preceding vehicle is calculated based on the signal from the scanning laser radar. Specifically, it is determined whether or not there is a candidate vehicle in the traveling lane, selection of a preceding vehicle when there is a candidate vehicle in the traveling lane, and the current inter-vehicle distance DS between the preceding vehicle and the own vehicle.
And the calculation of the relative speed Vba between the preceding vehicle and the own vehicle, etc., and when determining whether to sound an alarm based on the vehicle speed VS or the inter-vehicle distance DS, an inter-vehicle distance alarm process is performed.

In step S18, a failure diagnosis process for a CCD camera, a scanning laser radar, or the like is performed. Here, disturbance of the image signal from the CCD camera, contamination of the laser radar, and the like are detected and processed as a failure. In step S20, various control data setting processes are performed based on the result of the input signal processing performed in step S14 and the result of the calculation of the preceding vehicle data performed in step S16.

Here, first, the driver operates the operation switch 1.
8 to set the delay time from the preceding vehicle, that is, the inter-vehicle time TC, which is input. The inter-vehicle time TC is determined based on a map (not shown) provided in advance according to the operation amount of the operation switch 18, and its value is set, for example, in a range of 1.5 sec to 2.5 sec. .

The set inter-vehicle distance Dset between the host vehicle and the preceding vehicle is calculated based on the inter-vehicle time TC.
Calculation of the safe inter-vehicle distances DSF1, DSF2 is performed. The set inter-vehicle distance Dset is a threshold value for determining whether or not the preceding vehicle is in a range in which tracking control described below is to be performed, and is also a target inter-vehicle distance during preceding vehicle tracking. The safe inter-vehicle distances DSF1 and DSF2 are used in control modes such as tracking control, slow deceleration control, and deceleration control, which will be described later, and are threshold values provided to secure a sufficient inter-vehicle distance. The safe inter-vehicle distance DSF1 is used in the tracking control mode and the slow deceleration control mode, and the safe inter-vehicle distance DSF2 is used in the slow deceleration control mode and the deceleration control mode. These set inter-vehicle distance Dset and safe inter-vehicle distances DSF1 and DSF2 are:
It is determined according to the vehicle speed from a corresponding map (not shown).

The above steps S14 to S20
Is performed by the input processing unit 4 of FIG. The next step S22 is a control mode transition process, that is, a control mode transition process, based on the set inter-vehicle distance Dset and the safe inter-vehicle distances DSF1 and DSF2, the current inter-vehicle distance DS, the driver's switch operation, and the like obtained as described above. This is a step of selecting a mode. This process is performed by the control state calculation unit 6.

FIG. 4 schematically shows each control mode and its transition, and each control mode and its transition will be described below with reference to FIG. By the way, in the next step S24, the control content calculation unit 8 is used in performing the travel control.
Is a setting step for setting the set vehicle speed Vm and the like, and step S26 is various control output processing, that is, the throttle actuator 30, the A / T 32, and the brake actuator 34.
These drive control steps are performed according to each control mode, and will be described together here.

As shown in FIG. 4, when the power is turned on and initialization is performed in step S10, the control mode is the initialization mode M10, and after the initialization process is completed, the control mode is shifted to the control OFF mode M12. The control OFF mode M12 is a control mode in which traveling control is not performed and a normal driving operation by the driver is performed.

When the running control is started by operating the operation switch 18, the control mode to be shifted is determined based on the execution results of the above steps S14, S16, S20. The vehicle speed VS can be controlled (for example, 40 km / h ≦ VS)
≦ 105 km / h) and the current inter-vehicle distance DS is larger than the set inter-vehicle distance Dset (DS> Dset), the control transits to the constant speed control mode M14. At this time, the current vehicle speed VS is stored in the ECU 2 as the set vehicle speed Vm (Vm = V
S) In the constant speed control mode M14, the traveling control is performed so as to maintain the set vehicle speed Vm.
In the constant speed control mode M14, the operation switch 1
The operation of Step 8 temporarily shifts to the speed adjustment mode M16, and the set vehicle speed Vm can be increased or decreased.

On the other hand, when the current inter-vehicle distance DS is less than or equal to the set inter-vehicle distance Dset (DS ≦ Dset), there is a preceding vehicle, and in this case, the control is shifted from the control OFF mode M12 to the tracking control mode M18. In the tracking control mode M18, the vehicle travels while maintaining a constant inter-vehicle distance with the preceding vehicle. At this time, the set vehicle speed Vm is also set. Here, a value that is larger by α (for example, 10 km / h) than the vehicle speed VS at the time of transition to the tracking control mode M18 is stored in the ECU 2 as the set vehicle speed Vm. (Vm
= VS + α). However, even when the preceding vehicle accelerates, the own vehicle does not track the preceding vehicle exceeding the set vehicle speed Vm. Note that in the tracking control mode M18, the inter-vehicle adjustment mode M20 is temporarily operated by operating the operation switch 18.
To the set inter-vehicle distance Ds by changing the inter-vehicle time TC.
It is possible to increase or decrease et.

If the inter-vehicle distance DS is smaller than the safe inter-vehicle distance DSF1 when the traveling control is started, that is, if the own vehicle is too close to the preceding vehicle, the mode shifts to the slow deceleration control mode M22. I do. In the slow deceleration control mode M22, the control content calculation unit 8 of the ECU 2 controls the drive of the throttle actuator 30 to the closing side to reduce the vehicle speed VS by the function of the engine brake. Thereby, the inter-vehicle distance with the preceding vehicle can be increased.

In the constant speed control mode M14, a preceding vehicle appears, and the inter-vehicle distance DS at that time is equal to the set inter-vehicle distance Dset.
When it is below (DS <Dset), the tracking control mode M
Move to 18. Constant speed control mode M14 and tracking control mode M
At 18, when the inter-vehicle distance DS becomes smaller than the safe inter-vehicle distance DSF1 (DS <DSF1), the control mode transits to the slow deceleration control mode M22. This safe inter-vehicle distance DSF1 is
This is obtained from the map according to the current vehicle speed VS.

In the slow deceleration control mode M22, when the inter-vehicle distance DS becomes sufficiently large and the current inter-vehicle distance DS becomes greater than or equal to the safe inter-vehicle distance DSF1 (DS ≧ DSF1), the process returns to the tracking control mode M18. If the inter-vehicle distance DS does not increase due to the operation of the engine brake in the slow deceleration control mode M22 and is still smaller than the safe inter-vehicle distance DSF2, the mode transits to the deceleration control mode M24. In the deceleration control mode M24, the vehicle speed VS is further sharply reduced by performing downshift control of the A / T 32 and drive control of the brake actuator 34. Thus, the distance between the vehicle and the preceding vehicle can be increased in a short time. When the current inter-vehicle distance DS becomes equal to or longer than the safe inter-vehicle distance DSF2, the process returns to the slow deceleration control mode M22. The safe inter-vehicle distance DSF2 is obtained from the map, similarly to the safe inter-vehicle distance DSF1.

When the preceding vehicle changes lanes during traveling control in the tracking control mode M18, the slow deceleration control mode M22, or the deceleration control mode M24, and the vehicle stops suddenly from the front, that is, when the vehicle loses traffic, The distance DS is infinite (DS = ∞). In this case, the vehicle speed holding mode M2
Move to 6. In the vehicle speed holding mode M26, the vehicle speed VS at the time of the lost target is held at the holding vehicle speed Vh (Vh = VS).
The holding vehicle speed Vh is set to a predetermined time t2 (for example, 3se
Hold for c). When the predetermined time t2 has elapsed, the process returns to the constant speed control mode M14. However, here, the vehicle speed VS at the time of the loss, that is, the holding vehicle speed Vh is the predetermined time t.
The travel is controlled while being held for 3 (for example, 30 seconds), and the vehicle speed is returned to the set vehicle speed Vm only when the operation switch 18 is operated to resume during this time. If the resume operation is not performed within the predetermined time t3, the holding vehicle speed Vh
Is newly stored as the set vehicle speed Vm. Thereafter, the vehicle is controlled to run at the new set vehicle speed Vm.

After steps S22 to S26 have been executed, step S28 is executed next. This step S28 is a step executed by the display content calculation unit 10, and performs various display and alarm output processing. The output means includes a lamp output, a display output, a buzzer output, and a voice warning output. Specifically, the driving control operation display lamp 62 and the warning buzzer operation lamp 6 shown in FIG.
4. A center message display 41 or an inter-vehicle distance warning buzzer which issues a warning sound based on the inter-vehicle distance alarm processing of the input processing section 4 when the inter-vehicle distance DS becomes smaller than the inter-vehicle distance (predetermined distance). (Not shown).

Hereinafter, these running control operation indicating lamps 6
2. The warning buzzer operation lamp 64, the set vehicle speed display section 42 of the center message display 41, the following distance display section 44, the preceding vehicle display section 46, the display contents of the warning lamp 48 and the operation of the following distance warning buzzer are controlled in each control mode. A description will be given with reference to FIGS. 2, 5, and 6 described above.

FIG. 5 shows display contents when the traveling control is being performed. When the vehicle is traveling in the constant speed control mode M14, as shown in (1), the set vehicle speed Vm (for example, Vm = 100 km) is displayed on the set vehicle speed display section 42.
/ h) is displayed. Then, to indicate that the travel control is being performed, the travel control operation indicator lamp 6 is displayed.
2 is turned on (for example, “CRUISE” is turned on).
When the traveling control is performed, the inter-vehicle distance warning buzzer is automatically enabled without operating the warning switch 54, so that the warning buzzer operation lamp 64 is also turned on (for example, “between vehicles”). Is lit).

When the vehicle is traveling in the constant speed control mode M14, even if there is a preceding vehicle, if the inter-vehicle distance is sufficiently large (D> Dset), the vehicle remains in the constant speed control mode M14. . In this case, as shown in (2),
In addition to the display content of the item (1), the current inter-vehicle distance DS (for example, a display when DS = 80 m is shown) is displayed on the inter-vehicle distance display unit 44, and the preceding vehicle display unit 46 displays the vehicle distance. The rear line drawing is displayed.

When the vehicle is traveling in the tracking control mode M18, as shown in the item (3), in addition to the display contents of the item (2), the preceding vehicle display section 46 displays a line drawing of the rear part of the vehicle. The picture with the inside color changed or reversed is displayed. If the inter-vehicle distance DS becomes shorter than the warning inter-vehicle distance and is determined to be dangerous, as shown in the item (4),
The warning lamp 48 displays the content of the warning and is turned on, and a warning sound is issued from the following distance warning buzzer.

When the brake pedal is operated during the running control, the operation switch 18 is operated to the running control releasing side,
In addition, the current vehicle speed VS becomes a predetermined value VS1 (for example, 35 km /
h) When the following occurs, as shown in (5),
The travel control operation display lamp 62 is turned off with the release of the travel control. When the vehicle speed VS falls below the predetermined value VS1, the display of the set vehicle speed Vm disappears. The inter-vehicle distance warning processing function is activated even when the traveling control is not performed. Therefore, the inter-vehicle distance DS and the presence or absence of a preceding vehicle are displayed regardless of whether the traveling control is performed or not. Will remain.

FIG. 6 is a diagram showing each display content when the traveling control is released and only the inter-vehicle distance warning processing function is activated. If the inter-vehicle distance DS becomes less than or equal to the inter-vehicle distance for which the warning is activated while the inter-vehicle distance warning buzzer is activated, the warning buzzer operation lamp 64 remains lit as shown in the section (6), and the set vehicle speed is set. Nothing is displayed on the display unit 42, the current inter-vehicle distance DS is displayed on the inter-vehicle distance display unit 44, and a line drawing of the rear part of the vehicle is displayed on the preceding vehicle display unit 46. However, unlike the display of the above item (4) under the traveling control, the color of the line drawing at the rear of the vehicle in the preceding vehicle display section 46 does not change. And the warning lamp 48
Lights up and the warning content is displayed, and the inter-vehicle distance warning buzzer emits a warning sound.

When the inter-vehicle distance DS is equal to or less than the set inter-vehicle distance Dset, while the warning switch 54 is OFF and the inter-vehicle distance warning buzzer is not activated, the center message display is made as shown in (7). Although the display of 41 is the same as that of the above item (6), the warning buzzer operation lamp 64 is turned off, and the inter-vehicle distance warning buzzer does not generate a warning sound.

The inter-vehicle distance warning processing function is automatically released when the vehicle speed VS becomes lower than a predetermined value VS2 (for example, 15 km / h). By the way, the center message display 41 can also display the failure contents of the CCD camera and the laser radar with line drawings, characters, and the like.
Further, other display (for example, clock display) other than the above can be performed by switching a display changeover switch (not shown), but the description is omitted here.

As described in detail above, the display 40 such as the center message display 41 on the instrument panel 50 and the running control operation display lamp 62 is provided.
That the cruise control device is in operation, the current distance D
S, the presence / absence of the preceding vehicle, the set vehicle speed Vm when running control such as tracking control and constant speed control, and the approaching state of the preceding vehicle are displayed in an easy-to-understand manner. Can be easily and reliably grasped, and when the set vehicle speed Vm is set during the traveling control, the set vehicle speed Vm can be easily confirmed. Therefore, for example, even if there is no preceding vehicle at the time of the tracking control mode or the like, and the control mode transits to the constant speed control mode via the vehicle speed holding control mode and the driver performs the resume operation, the driver is the target. The set vehicle speed Vm can be known. As a result, the driver can continue traveling with confidence without feeling unintended acceleration or deceleration.

[0046]

As is apparent from the above description, claim 1
According to the display device in the vehicle travel control device, when the set vehicle speed during the constant speed travel control is set in the vehicle travel control device, the set vehicle speed is displayed at a position visible to the driver of the vehicle. When the set vehicle speed is set and the tracking travel control or the constant speed travel control is being performed, the set vehicle speed and the travel control device are operating. This fact can be clearly displayed at a position visible to the driver of the vehicle, and the traveling control state can be easily understood. As a result, the driver of the vehicle can easily and surely grasp that the set vehicle speed and the travel control device are operating, and can eliminate anxiety due to unintended acceleration or deceleration, for example.

According to the display device of the vehicle travel control device of the second aspect, when the set vehicle speed at the time of constant speed traveling control is set, the set vehicle speed is displayed at a position visible to the driver of the vehicle. And the presence or absence of the preceding vehicle is displayed, so that when the set vehicle speed is set and the tracking traveling control or the constant speed traveling control is performed, the driver of the vehicle can see the set vehicle speed and the presence or absence of the preceding vehicle. The position can be clearly displayed, and the traveling control state can be easily understood. This allows
The driver of the vehicle can easily and surely grasp the set vehicle speed and the presence or absence of the preceding vehicle, and can eliminate anxiety due to unintended acceleration or deceleration, for example.

According to the display device of the vehicle travel control device of the third aspect, when the set vehicle speed at the time of the constant speed traveling control is set, the set vehicle speed is displayed at a position visible to the driver of the vehicle. In addition, when the set vehicle speed is set and tracking driving control or constant speed driving control is performed, the set vehicle speed and the distance between vehicles are clearly displayed in a position visible to the driver of the vehicle. It can be displayed and the running control state can be easily understood. As a result, the driver of the vehicle can easily and surely grasp the set vehicle speed and the following distance, and can eliminate uneasiness due to unintended acceleration or deceleration, for example.

According to the display device of the vehicle travel control device of the fourth aspect, when the set vehicle speed at the time of constant speed traveling control is set, the set vehicle speed is displayed at a position visible to the driver of the vehicle. And when the inter-vehicle distance becomes equal to or less than the predetermined distance, the approach state with the preceding vehicle is displayed, so when the set vehicle speed is set and the tracking traveling control or the constant speed traveling control is performed, the When the set vehicle speed or the inter-vehicle distance becomes equal to or less than a predetermined distance, the approach state with the preceding vehicle can be clearly displayed at a position visible to the driver of the vehicle, and the traveling control state can be easily understood. Thereby, the driver of the vehicle can easily and surely grasp the approaching state to the preceding vehicle when the set vehicle speed or the inter-vehicle distance becomes equal to or less than the predetermined distance. For example, anxiety due to unintended acceleration or deceleration, etc. Can be eliminated.

According to the display device of the vehicle travel control device of the fifth aspect, when the set vehicle speed at the time of constant-speed travel control is set and the preceding vehicle is recognized, the driver of the vehicle can view. Since the preceding vehicle is schematically displayed at the position and the set vehicle speed is displayed, when the set vehicle speed is set and the tracking traveling control or the constant speed traveling control is performed, the position visible to the driver of the vehicle In addition, the preceding vehicle can be schematically displayed, and the set vehicle speed can be clearly displayed, so that the traveling control state can be easily understood. As a result, the driver of the vehicle can very easily and surely know the presence or absence of the preceding vehicle, and can easily and reliably know the set vehicle speed, for example, eliminating anxiety due to unintended acceleration or deceleration. it can.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a travel control device.

FIG. 2 is a diagram showing the surroundings of an instrument panel.

FIG. 3 is a flowchart illustrating a control routine of traveling control.

FIG. 4 is a diagram showing transition of each control mode.

FIG. 5 is a diagram showing display contents of a display when running control is performed.

FIG. 6 is a diagram showing display contents of a display when traveling control is not performed.

[Explanation of symbols]

 2 Main control unit (ECU) 10 Display content calculation unit 18 Operation switch 40 Display 41 Center message display 42 Set vehicle speed display unit 44 Inter-vehicle distance display unit 46 Previous vehicle display unit 48 Warning lamp 62 Driving control operation display lamp

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G08G 1/16 G08G 1/16 E (72) Inventor Masayuki Hashiguchi 5-33-8 Shiba 5-chome, Minato-ku, Tokyo Inside Mitsubishi Motors Corporation (72) Inventor Takushi Kosaka 5-33-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Masayuki Yoshimoto 5-33-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Industrial Co., Ltd.

Claims (5)

[Claims] An inter-vehicle distance measuring unit that measures an inter-vehicle distance with a preceding vehicle, and controls a vehicle speed so that the measured inter-vehicle distance becomes a predetermined distance; A traveling control device for a vehicle, comprising: a constant-speed traveling control unit that travels at a set vehicle speed set; wherein, when the set vehicle speed is set, the set vehicle speed is displayed at a position visible to a driver of the vehicle. A display unit for displaying that the travel control device is in operation, the display device being provided in the vehicle travel control device. 2. A tracking control means for measuring a distance between the vehicle and a preceding vehicle by means of a distance measuring means, and controlling the vehicle speed so that the measured distance between the vehicles becomes a predetermined distance. A vehicle traveling control device comprising: a constant speed traveling control unit that travels at a set vehicle speed set; wherein the inter-vehicle distance measuring unit recognizes the preceding vehicle; and when the set vehicle speed is set, A display device for displaying the set vehicle speed at a position visible to a driver and a display device for displaying the presence or absence of the preceding vehicle recognized by the inter-vehicle distance measuring device. . 3. A tracking control means for measuring an inter-vehicle distance with a preceding vehicle by an inter-vehicle distance measuring means, and controlling a vehicle speed so that the measured inter-vehicle distance becomes a predetermined distance. A traveling control device for a vehicle, comprising: a constant-speed traveling control unit that travels at a set vehicle speed set; wherein, when the set vehicle speed is set, the set vehicle speed is displayed at a position visible to a driver of the vehicle. And a display means for displaying the inter-vehicle distance. 4. A tracking control means for measuring a distance between the vehicle and a preceding vehicle by a distance measuring means, and controlling a vehicle speed so that the measured distance between the vehicles becomes a predetermined distance. A traveling control device for a vehicle, comprising: a constant-speed traveling control unit that travels at a set vehicle speed set; wherein, when the set vehicle speed is set, the set vehicle speed is displayed at a position visible to a driver of the vehicle. A display device for displaying a state of approach to the preceding vehicle when the inter-vehicle distance becomes equal to or less than the predetermined distance. 5. A tracking control means for measuring an inter-vehicle distance with a preceding vehicle by an inter-vehicle distance measuring means, and controlling a vehicle speed so that the measured inter-vehicle distance becomes a predetermined distance. In a travel control device for a vehicle, comprising: a constant-speed travel control unit that travels at a set vehicle speed set; wherein the inter-vehicle distance measurement unit recognizes the preceding vehicle, the set vehicle speed is set, and the inter-vehicle distance measurement unit When the preceding vehicle is recognized, a display means for displaying the preceding vehicle schematically and displaying the set vehicle speed at a position visible to a driver of the vehicle is provided. Display device in the travel control device.