JP7365563B2 - Driving support control device - Google Patents

Description

The present invention relates to a driving support control device.

Patent Document 1 listed below discloses a driving support device that detects the degree of sway of a vehicle based on a road lane, and activates a lane keeping support device when the detected degree of sway exceeds a threshold value. The lane keeping support device disclosed in Patent Document 1 supports driving by applying a steering assist torque to a steering mechanism so that the vehicle travels in a predetermined position on the inside of a lane.

Japanese Patent Application Publication No. 2018-144691

By the way, the lane keeping support device disclosed in Patent Document 1 determines whether or not the lane keeping support device is activated based on the degree of vehicle sway, which is determined based on the driving situation of the vehicle. In this case, since the lane keeping support system cannot be activated unless the driving condition of the vehicle deteriorates to some extent, there is a risk that the start of operation of the lane keeping support system will be delayed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a driving support control device that can quickly activate a driving support function that increases vehicle safety depending on the situation.

A driving support control device according to one aspect of the present invention is a driving support control device that can be installed in a vehicle having a visibility improvement function that improves the visibility inside the vehicle and a driving support function that supports driving of the vehicle. The control unit includes a control unit that activates the driving support function or changes an operation standard so that the driving support function is easier to operate when an operation on the improvement function is detected.

According to the present invention, it is possible to provide a driving support control device that can quickly activate a driving support function that increases vehicle safety depending on the situation.

1 is a diagram illustrating a schematic configuration of a vehicle system including a driving support control device according to an embodiment. It is a flow chart for explaining operation of a driving support control device concerning an embodiment.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, parts with the same reference numerals have the same or similar configurations.

With reference to FIG. 1, the configuration of a vehicle system 100 including a driving support control device 1 according to an embodiment will be described. The vehicle system 100 is a system that can be mounted on a vehicle, and includes, for example, a driving support control device 1, a visibility improvement function 2, and a driving support function 3.

In addition to the above configuration, the vehicle system 100 includes, for example, an accelerator sensor, a brake sensor, a gyro sensor, an acceleration sensor, a camera, a millimeter wave radar, a LiDAR (Light Detection and Ranging), an ultrasonic sensor (sonar), and an outside temperature sensor. The vehicle may include various sensors such as a drive recorder, a GPS (Global Positioning System) receiver, a car navigation device, an in-vehicle communication device, an automatic driving function, and the like.

The driving support control device 1 controls the operating state of the driving support function 3 according to the operation status of the visibility improvement function 2.

The visibility improvement function 2 is a function to remove fog from the inside of a window, and includes, for example, a defroster or a defogger. A defroster removes fog from the inside of a front window and a front door window, for example, and a defogger removes fog from the inside of a rear window, for example.

The driving support function 3 is a function that supports driving so as to improve the safety of the vehicle, and includes, for example, a lane keeping support function, a lane departure prevention function, a lane departure warning function, and a preceding vehicle following support function.

The lane keeping support function is, for example, a function that supports steering operation so that the vehicle travels near the center of the lane.

The lane departure prevention function is, for example, a function (Lane Departure Prevention System (LDPS) function) that controls the steering, brakes, etc. when a vehicle is about to deviate from its lane, and maintains the vehicle in its current lane.

The lane departure warning function is a function that assists the vehicle in not deviating from its lane by, for example, sounding a warning sound and displaying a warning on the display when the vehicle is about to deviate from its lane.

The preceding vehicle following support function is, for example, a function that assists the vehicle in following the preceding vehicle while maintaining a constant inter-vehicle distance (target inter-vehicle distance).

The driving support control device 1 includes, for example, a control unit 10 as a functional configuration. Note that the components of the driving support control device 1 are not limited to these, and arbitrary components can be added as necessary.

When the control unit 10 detects an operation on the visibility improvement function 2, the control unit 10 activates the driving support function 3, or changes the operation standard of the driving support function 3 so that the driving support function 3 becomes easier to operate.

Operations for the above visibility improvement function 2 include, for example, switching the defroster or defogger from off to on, switching the strength of the defroster or defogger from weak to strong, and increasing the strength of the defroster or defogger to a predetermined level or higher. This applies to operations that switch to . The strength above the predetermined level can be set as appropriate, for example, based on the range of cloudy conditions inside the window where driving assistance is required, taking into consideration the strength that is selected when the cloudiness is within that range.

Changing the operation criteria of the driving support function 3 mentioned above includes, for example, increasing the control amount for the offset deviation from the lane of the lane keeping support function more than usual, or increasing the control intervention of the lane departure prevention function more than usual. Activate the warning sound and warning display of the lane departure warning function further inside the lane than usual, and set the target following distance of the leading vehicle following support function to the normal range. This includes changing the target value so that the safety margin of the driving support function 3 is wider than usual, such as increasing the safety margin.

Here, the control unit 10 is not limited to activating the driving support function 3 described above or changing the operating standard of the driving support function 3, but also suggests to the driver to activate the driving support function 3. Alternatively, the driver may be suggested to change the operating criteria of the driving support function 3.

Further, in addition to the operation for the above-mentioned visibility improvement function, the control unit 10 determines the degree of fogging inside the window using the measured values from the outside temperature sensor and other sensors, and activates the driving support function 3. Alternatively, the operation criteria of the driving support function 3 may be changed so that the driving support function 3 can operate more easily.

Next, with reference to FIG. 2, an example of the operation of the driving support control device 1 according to the embodiment will be described.

First, the control unit 10 of the driving support control device 1 determines whether an operation on the visibility improvement function 2 is detected (step S101). If this determination is NO (step S101; NO), this determination is repeated until YES.

If it is determined in step S101 that an operation on the visibility improvement function 2 has been detected (step S101; YES), the control unit 10 of the driving support control device 1 determines whether the driving support function 3 is operating ( Step S102). If this determination is YES (step S102; YES), this operation ends.

If it is determined in step S102 that the driving support function 3 is not activated (step S102; NO), the control unit 10 of the driving support control device 1 activates the driving support function 3 (step S103). Then, this operation ends.

As described above, according to the driving support control device 1 in the embodiment, when an operation on the visibility improvement function 2 is detected, the driving support function 3 is activated, or the driving support function 3 is activated to facilitate activation. Standards can be changed.

This makes it possible to activate the driving support function 3, which increases the safety of the vehicle, early depending on the situation.

Note that the present invention is not limited to the embodiments described above, and can be implemented in various other forms without departing from the gist of the present invention. Therefore, the above embodiments are merely illustrative in all respects, and should not be construed as limiting.

1... Driving support control device, 2... Visibility improvement function, 3... Driving support function, 10... Control unit, 100... Vehicle system

Claims (1)

A driving system that can be installed in a vehicle that has a visibility improvement function that improves the visibility inside the vehicle by removing fogging from the windows, and a driving support function that supports driving to increase the safety of the vehicle by the driver's driving operations. A support control device,
When detecting an operation to strengthen the operating state of either the defroster or the defogger having the visibility improvement function, the safety of at least one of the lane keeping support function and the lane departure prevention function included in the driving support function is detected . Equipped with a control unit that changes the target value of the operating standard so that the margin is wider than normal ,
When the target value of the operation standard is changed so that the safety margin of the lane keeping support function is wider than normal, the control unit increases a control amount for offset deviation from the lane compared to normal. When the lane keeping support function is activated and the target value of the operation standard is changed so that the safety margin of the lane departure prevention function is wider than normal, the control is performed inside the lane compared to the normal control. activating the lane departure prevention function to start;
Driving support control device.