Cruise control device, cruise control method, and cruise control computer program

JP7639791B2Active Publication Date: 2025-03-05TOYOTA JIDOSHA KK
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Patent Information

Application Number
JP2022131816
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-22
Publication Date
2025-03-05
Estimated Expiration
2042-08-22

AI Technical Summary

Benefits of technology

【0014】 (7)車両の加減速を自動制御する自動運転中に、前記車両の運転者による前記車両を加速させる操作と前記運転者による前記車両の操舵方向および操舵程度を指定する操作を受け付ける操舵操作受付部への前記運転者の把持とを検出した場合、 前記車両の加速度が所定の加速度上限値以下となるように前記加速度を制限することと、 前記車両を加速させる操作に従って前記車両を加速させることと、 前記車両を加速させる操作および前記操舵操作受付部への把持の検出からの時間の経過に応じて前記加速度上限値を増加させることと、 を前記車両に搭載されたコンピュータに実行させる走行制御用コンピュータプログラム。

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Abstract

To provide a travel control device capable of controlling sudden acceleration when an operation device of a vehicle is operated during automatic operation, even if a driver intends to accelerate the vehicle by increasing the degree of operation of the operation device.SOLUTION: A travel control device: determines whether detection is made for driver's operation to accelerate a vehicle during automatic operation to automatically control acceleration and deceleration of the vehicle; determines whether detection is made for driver's holding of a steering operation reception section receiving driver's operation to designate a steering direction and the degree of steering of the vehicle; accelerates the vehicle in accordance with the driver's operation to accelerate the vehicle when detection is made for driver's operation to accelerate the vehicle and holding of the steering operation reception section during the automatic operation while limiting acceleration of the vehicle to a predetermined acceleration upper limit value or less; and increases the acceleration upper limit value in accordance with the elapse of time since the detection of driver's operation to accelerate the vehicle and holding of the steering operation reception section.SELECTED DRAWING: Figure 5
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Description

[Technical field]

[0001] The present disclosure relates to a driving control device for controlling driving of a vehicle, a driving control method, and a computer program for driving control. [Background technology]

[0002] During automatic driving in which the driving control device controls the vehicle's driving, if the driver operates an operating device that adjusts the control amount of the vehicle's acceleration device, the driving control device may control the vehicle's acceleration by prioritizing the control amount based on the driver's operation over the control amount determined by automatic driving.

[0003] When the control of the vehicle is suddenly switched from automatic driving to manual driving based on the driver's operation, the vehicle's running state may become unstable. Patent Document 1 describes a vehicle control system that, when a request to switch to manual driving is made during automatic driving, changes the control ratio between automatic driving and manual driving so that the control ratio of automatic driving becomes smaller and the control ratio of manual driving becomes larger over time, and changes the control ratio according to the vehicle speed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-083262 A Summary of the Invention [Problem to be solved by the invention]

[0005] When transitioning from autonomous driving to manual driving, if an operating device (e.g., accelerator pedal) is operated excessively, even if the control ratio for manual driving is suppressed, the final control value may be excessive, resulting in sudden acceleration and other issues that may make it difficult to ensure sufficient safety.

[0006] The present disclosure aims to provide a driving control device that can suppress sudden acceleration even when the vehicle is accelerated in accordance with the amount of operation of the driver on the operating device when the vehicle's operating device is operated during autonomous driving. [Means for solving the problem]

[0007] The gist of the present disclosure is as follows.

[0008] (1) A transition control unit that, when detecting an operation by a driver of the vehicle to accelerate the vehicle and the driver's grip on a steering operation receiving unit that receives an operation specifying a steering direction and a steering degree of the vehicle during automatic driving in which acceleration and deceleration of the vehicle are automatically controlled, accelerates the vehicle in accordance with the operation to accelerate the vehicle while limiting the acceleration of the vehicle so that the acceleration of the vehicle is equal to or less than a predetermined acceleration upper limit value, and increases the acceleration upper limit value according to the passage of time from the detection of the operation to accelerate the vehicle and the grip on the steering operation receiving unit; A driving control device comprising:

[0009] (2) The driving control device described in (1) above, wherein when a driver's operation for changing lanes is detected, the transition control unit increases the degree of increase in the upper acceleration limit value over time to a greater extent than when a driver's operation for changing lanes is not detected.

[0010] (3) The driving control device described in (1) or (2) above, wherein the transition control unit reduces the degree of increase in the upper acceleration limit value over time when the driver's line of sight is not directed in the direction of travel of the vehicle compared to when the driver's line of sight is directed in the direction of travel of the vehicle.

[0011] (4) A driving control device described in any one of (1)-(3) above, wherein the transition control unit accelerates the vehicle in accordance with an operation to accelerate the vehicle while limiting the acceleration corresponding to a composite control amount calculated by combining a manual control amount corresponding to an operation by the driver to accelerate the vehicle and a control amount for accelerating the vehicle by the automatic control in a predetermined ratio to be equal to or less than the upper acceleration limit value.

[0012] (5) The driving control device according to (4) above, wherein the transition control unit calculates the combined control amount so that a proportion of the manual control amount increases over time.

[0013] (6) A driving control device capable of automatically controlling the acceleration and deceleration of a vehicle, During automatic driving that automatically controls the acceleration and deceleration of the vehicle, when an operation by a driver of the vehicle to accelerate the vehicle and a grip of the driver on a steering operation receiving unit that receives an operation by the driver to specify a steering direction and a steering degree of the vehicle are detected, limiting the acceleration of the vehicle so that the acceleration is equal to or less than a predetermined upper acceleration limit; accelerating the vehicle in accordance with an operation for accelerating the vehicle; increasing the acceleration upper limit value in accordance with the lapse of time from the detection of an operation for accelerating the vehicle and the detection of gripping of the steering operation reception unit; A driving control method comprising the steps of:

[0014] (7) During automatic driving that automatically controls the acceleration and deceleration of a vehicle, when an operation by a driver of the vehicle to accelerate the vehicle and a grip of the driver on a steering operation receiving unit that receives an operation by the driver to specify the steering direction and steering degree of the vehicle are detected, limiting the acceleration of the vehicle so that the acceleration is equal to or less than a predetermined upper acceleration limit; accelerating the vehicle according to an operation for accelerating the vehicle; increasing the acceleration upper limit value according to the lapse of time from the detection of an operation to accelerate the vehicle and the detection of the gripping of the steering operation reception unit; A computer program for driving control that causes a computer mounted on the vehicle to execute the above-mentioned.

[0015] According to the driving control device disclosed herein, when an operating device of the vehicle is operated during autonomous driving, sudden acceleration can be suppressed even if the vehicle is accelerated according to the amount of operation of the operating device by the driver. [Brief description of the drawings]

[0016] [Figure 1] 1 is a schematic configuration diagram of a vehicle in which a driving control device is implemented; [Diagram 2] FIG. 2 is a hardware schematic diagram of a driving control device. [Diagram 3] FIG. 2 is a functional block diagram of a processor included in the driving control device. [Figure 4] FIG. 11 is a diagram illustrating a change in acceleration over time. [Diagram 5] 4 is a flowchart of a driving control process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, with reference to the drawings, a driving control device that can suppress sudden acceleration even when accelerating the vehicle according to the driver's operation amount on the operation device when the operation device of the vehicle is operated during automatic driving will be described in detail. The driving control device determines whether or not an operation to accelerate the vehicle by the driver of the vehicle is detected during automatic driving in which the acceleration and deceleration of the vehicle are automatically controlled. In addition, the driving control device determines whether or not the driver's grip on a steering operation reception unit that receives an operation to specify the steering direction and steering degree of the vehicle by the driver is detected during automatic driving. When an operation to accelerate the vehicle by the driver and the driver's grip on the steering operation reception unit are detected during automatic driving, the driving control device accelerates the vehicle according to the operation to accelerate the vehicle while limiting the acceleration of the vehicle to be equal to or less than a predetermined acceleration upper limit value. At this time, the driving control device increases the acceleration upper limit value according to the elapsed time from the detection of the operation to accelerate the vehicle and the grip on the steering operation reception unit.

[0018] FIG. 1 is a schematic configuration diagram of a vehicle in which a driving control device is implemented.

[0019] The vehicle 1 has a surrounding camera 2, an accelerator pedal 3, an acceleration controller 4, a steering wheel 5, a steering controller 6, and a driving control device 7. The surrounding camera 2, the acceleration controller 4, the steering controller 6, and the driving control device 7 are communicatively connected via an in-vehicle network that complies with a standard such as a controller area network.

[0020] The surrounding camera 2 is an example of a surrounding sensor for generating surrounding data representing the surrounding situation of the vehicle 1. The surrounding camera 2 has a two-dimensional detector composed of an array of photoelectric conversion elements sensitive to visible light, such as a CCD or a C-MOS, and an imaging optical system for forming an image of an area to be photographed on the two-dimensional detector. The surrounding camera 2 is attached, for example, to the front upper part of the vehicle interior facing forward. The surrounding camera 2 photographs the surrounding situation of the vehicle 1 through the windshield at a predetermined photographing period (for example, 1 / 30 second to 1 / 10 second) and outputs the surrounding image as surrounding data representing the surrounding situation of the vehicle 1. Note that the vehicle 1 may have, as a surrounding sensor, a sensor other than the surrounding camera 2, for example, a LiDAR (Light Detection And Ranging) sensor that generates a distance image as surrounding data, in which each pixel has a value corresponding to the distance to an object represented in the pixel, based on the surrounding situation of the vehicle 1.

[0021] The accelerator pedal 3 is an example of an acceleration operation receiving unit that receives a driver's operation to adjust the acceleration of the vehicle 1, and outputs a signal corresponding to the driver's operation to adjust the output of a driving source such as an engine or a motor that supplies power to the vehicle 1 to the acceleration controller 4. An operation to increase the output of the driving source is, for example, depressing the accelerator pedal 3.

[0022] The acceleration controller 4 is an ECU (Electronic Control Unit) having a communication interface, a memory, and a processor. The acceleration controller 4 is an example of a control device provided in the vehicle 1, and receives a signal corresponding to the driver's operation from the accelerator pedal 3 and transmits the signal to the cruise control device 7.

[0023] The steering wheel 5 is an example of a steering operation receiving unit that receives a driver's operation to adjust the steering direction and steering amount of the vehicle 1. The steering wheel 5 outputs a signal corresponding to the driver's operation requesting the operation of a steering mechanism for steering the vehicle 1 to the steering controller 6. The operation requesting the operation of the steering mechanism is, for example, an operation of rotating the steering wheel 5 clockwise or counterclockwise.

[0024] The steering wheel 5 has a steering hold sensor 5a. The steering hold sensor 5a is an example of a sensor provided in the vehicle 1. The steering hold sensor 5a outputs a steering hold signal to the steering controller 6 according to whether or not the driver is holding the steering wheel. The steering hold sensor 5a is, for example, a capacitance sensor provided in the steering wheel 5. The steering hold sensor 5a outputs a signal according to a capacitance that differs depending on whether the driver is holding the steering wheel 5 and thus in contact with it, and whether the driver is not holding the steering wheel and thus not in contact with it.

[0025] The steering controller 6 is an ECU (Electronic Control Unit) having a communication interface, a memory, and a processor. The steering controller 6 is an example of a control device provided in the vehicle 1, and receives a signal corresponding to the driver's operation and a steering holding signal from the steering wheel 5, and transmits them to the driving control device 7.

[0026] The driving control device 7 is an ECU having a communication interface, a memory, and a processor. The driving control device 7 determines whether or not the driver of the vehicle is performing a driving operation during automatic driving, and accelerates the vehicle according to the operation to accelerate the vehicle while limiting the acceleration of the vehicle to a predetermined upper acceleration limit value or less.

[0027] 2 is a hardware schematic diagram of the driving control device 7. The driving control device 7 includes a communication interface 71, a memory 72, and a processor 73.

[0028] The communication interface 71 is an example of a communication unit, and has a communication interface circuit for connecting the driving control device 7 to an in-vehicle network. The communication interface 71 supplies the received data to the processor 73. In addition, the communication interface 71 outputs the data supplied from the processor 73 to the outside.

[0029] The memory 72 includes a volatile semiconductor memory and a non-volatile semiconductor memory. The memory 72 stores various data used in processing by the processor 73, such as a calculation formula for setting an upper acceleration limit value according to the time after the driver's operation is detected. The memory 72 also stores various application programs, such as a driving control program for executing driving control processing.

[0030] The processor 73 is an example of a control unit, and includes one or more processors and their peripheral circuits. The processor 73 may further include other arithmetic circuits, such as a logic arithmetic unit, a numerical arithmetic unit, or a graphics processing unit.

[0031] FIG. 3 is a functional block diagram of the processor 73 included in the driving control device 7. As shown in FIG.

[0032] The processor 73 of the driving control device 7 has a driving control unit 731 and a transition control unit 732 as functional blocks. Each of these units of the processor 73 is a functional module implemented by a program executed on the processor 73. A computer program that realizes the functions of each unit of the processor 73 may be provided in a form recorded on a computer-readable portable recording medium such as a semiconductor memory, a magnetic recording medium, or an optical recording medium. Alternatively, each of these units of the processor 73 may be implemented in the driving control device 7 as an independent integrated circuit, a microprocessor, or firmware.

[0033] The driving control unit 731 controls the acceleration and deceleration of the vehicle 1. The driving control unit 731 may control the steering of the vehicle 1 in addition to the acceleration and deceleration of the vehicle 1.

[0034] The driving control unit 731 receives the surrounding image generated by the surrounding camera 2 via the communication interface 71. The driving control unit 731 detects lane markings around the vehicle 1 by inputting the received surrounding image to a classifier that has been trained in advance to detect lane markings. The driving control unit 731 also detects other vehicles around the vehicle 1 by inputting the received surrounding image to a classifier that has been trained in advance to detect other vehicles.

[0035] The classifier can be, for example, a convolutional neural network (CNN) having multiple convolution layers connected in series from the input side to the output side. Images including lane markings or other vehicles are input to the CNN in advance as training data, and the CNN operates as a classifier that detects lane markings or other vehicles from images by learning the images.

[0036] For example, the driving control unit 731 determines the acceleration and steering amount of the vehicle 1 so that the vehicle 1 travels appropriately along the lane based on the detected lane markings and the inter-vehicle distance to the detected other vehicle is longer than a predetermined distance. Then, the driving control unit 731 outputs a control signal according to the determined acceleration and steering amount to a driving mechanism (not shown) of the vehicle 1 via the communication interface 71. The driving mechanism includes, for example, a drive source such as an engine or a motor that supplies power to the vehicle 1, a brake that reduces the traveling speed of the vehicle 1, and a steering mechanism that steers the vehicle 1.

[0037] The transition control unit 732 determines whether or not an operation by the driver of the vehicle 1 to accelerate the vehicle 1 is detected during autonomous driving.

[0038] The transition control unit 732 can determine whether or not the vehicle is in autonomous driving mode by referring to the operating state of the driving control unit 731. Furthermore, the transition control unit 732 can determine whether or not an operation for accelerating the vehicle 1 (depressing the accelerator pedal 3) is detected, based on a signal received from the acceleration controller 4 via the communication interface 71.

[0039] The transition control unit 732 determines whether or not the driver's grip on the steering wheel 5 is detected during autonomous driving.

[0040] The transition control unit 732 can determine, based on a signal received from the steering controller 6 via the communication interface 71, whether or not the driver's grip on the steering wheel 5 is detected.

[0041] During autonomous driving, when an operation by the driver to accelerate the vehicle 1 and the driver's grip on the steering wheel 5 are detected, the transition control unit 732 accelerates the vehicle 1 in accordance with the operation to accelerate the vehicle 1 while limiting the acceleration of the vehicle 1 to be equal to or less than a predetermined acceleration upper limit value. In addition, the transition control unit 732 increases the acceleration upper limit value according to the elapsed time from the detection of the operation to accelerate the vehicle 1 and the grip on the steering wheel 5.

[0042] FIG. 4 is a diagram illustrating a change in acceleration over time.

[0043] 4, the horizontal axis represents time, and the vertical axis represents the acceleration of the vehicle 1. The data series indicated by the dashed line in the graph G represents the acceleration before the restriction that is determined according to the operation of accelerating the vehicle 1 by the driver.

[0044] The acceleration before being limited may be an acceleration corresponding to a composite control amount calculated by combining, at a predetermined ratio (for example, 50:50), a manual control amount according to the driver's operation and a control amount for automatic control by the driving control unit 731. The composite control amount may be calculated so that the ratio of the manual control amount increases over time.

[0045] The data series indicated by the dashed dotted line in graph G represents the upper acceleration limit value used by the transition control unit 732 to limit the acceleration of the vehicle 1. The upper acceleration limit value increases over time. The data series indicated by the solid line in graph G represents the acceleration of the vehicle 1 limited by the transition control unit 732.

[0046] Assume that an operation to accelerate the vehicle 1 and gripping the steering wheel 5 are detected at time t0. At time t0, the acceleration a 0u is the upper acceleration limit value a used for limiting the acceleration of the vehicle 1 by the transition control unit 732. 0b At this time, the transition control unit 732 limits the acceleration of the vehicle 1, and the acceleration a of the vehicle 1 after the limit is 0r Acceleration upper limit a 0b Let us assume that.

[0047] In the example of FIG. 4, the acceleration before the restriction decreases as time passes. On the other hand, the upper limit of the acceleration increases as time passes. At a time t1 after the time t0, the acceleration a before the restriction 1u is the upper acceleration limit a 1b Therefore, the acceleration a of vehicle 1 after the restriction at time t1 is 1ris the acceleration before limiting a 1u and the upper acceleration limit a 1b is equal to

[0048] In the example of FIG. 4, at a time later than time t1 (for example, time t2), the acceleration a before the restriction is applied 1u is the upper acceleration limit a 1b Therefore, the acceleration a of vehicle 1 at time t2 is 2r is not limited by the upper acceleration limit, and the acceleration a 2u It becomes.

[0049] The transition control unit 732 may generate a control signal for the drive source so that the drive torque generated by the drive source of the vehicle 1 does not exceed a torque upper limit value corresponding to the acceleration upper limit value. By generating a control signal in this manner, the transition control unit 732 can accelerate the vehicle 1 in accordance with an operation for accelerating the vehicle 1 while limiting the acceleration of the vehicle 1 to be equal to or less than a predetermined acceleration upper limit value.

[0050] 5 is a flowchart of the driving control process. The processor 73 of the driving control device 7 repeatedly executes the driving control process described below at a predetermined cycle while the vehicle 1 is in autonomous driving.

[0051] First, the transition control unit 732 of the processor 73 of the driving control device 7 determines whether or not an operation by the driver of the vehicle 1 to accelerate the vehicle 1 is detected (step S1). If an operation to accelerate the vehicle 1 is not detected (step S1: N), the transition control unit 732 ends the driving control process.

[0052] When an operation to accelerate the vehicle 1 is detected (step S1: Y), the transition control unit 732 judges whether or not the driver's grip on the steering wheel 5 is detected (step S2). When the driver's grip on the steering wheel 5 is not detected (step S2: N), the transition control unit 732 ends the driving control process.

[0053] If the driver's grip on the steering wheel 5 is detected (step S2: Y), the transition control unit 732 increases the upper acceleration limit value in accordance with the operation to accelerate the vehicle 1 and the elapsed time from the detection of the driver's grip on the steering wheel 5 (step S3).

[0054] Next, the transition control unit 732 determines whether the pre-restriction acceleration determined according to the driver's operation to accelerate the vehicle 1 exceeds the upper acceleration limit (step S4). If the pre-restriction acceleration does not exceed the upper acceleration limit (step S4: N), the process of the cruise control device 7 proceeds to step S6 described later.

[0055] When the acceleration before being limited exceeds the upper acceleration limit (step S4: Y), the transition control unit 732 limits the acceleration of the vehicle 1 to a predetermined upper acceleration limit or less (step S5).

[0056] The transition control unit 732 accelerates the vehicle 1 to the acceleration set in accordance with the operation for accelerating the vehicle 1 (step S5), and ends the driving control process.

[0057] By executing the driving control process in this manner, when the vehicle's operating device is operated during autonomous driving, sudden acceleration can be suppressed even if the vehicle is accelerated according to the amount of operation of the operating device by the driver.

[0058] According to a modified example, the transition control unit 732 detects a driver's operation for changing lanes. The driver's operation for changing lanes is, for example, an operation of a blinker lever (not shown) for turning on a turn signal light (not shown). The blinker lever outputs a signal corresponding to the driver's operation to the steering controller 6. The transition control unit 732 acquires a signal corresponding to the operation of the blinker lever via the communication interface 71. Furthermore, the transition control unit 732 may detect a driver's operation for changing lanes when it receives, together with the operation of the blinker lever, an operation of the steering wheel 5 exceeding a predetermined steering amount threshold in the direction of the turn signal light turned on by the operation of the blinker lever.

[0059] In this modified example, when a driver's operation for changing lanes is detected, the transition control unit 732 increases the degree of increase in the upper acceleration limit value according to the passage of time from the detection of the operation to accelerate the vehicle 1 and the grip on the steering wheel 5, more than when a driver's operation for changing lanes is not detected.

[0060] According to a different modified example, the transition control unit 732 detects the driver's line of sight.

[0061] The vehicle 1 has a driver monitor camera (not shown) for generating a driver image representing the driver of the vehicle. The driver monitor camera has a two-dimensional detector composed of an array of photoelectric conversion elements sensitive to infrared light, and an imaging optical system for forming an image of an area to be photographed on the two-dimensional detector. The driver monitor camera also has a light source that emits infrared light. The driver monitor camera is attached, for example, at the front of the vehicle interior, facing the face of the driver seated in the driver's seat, and is communicatively connected to the driving control device 7 via an in-vehicle network. The driver monitor camera irradiates the driver with infrared light at a predetermined photographing period (for example, 1 / 30 to 1 / 10 seconds) and outputs a driver image representing the driver in time series.

[0062] The transition control unit 732 detects the pupil and the corneal reflection image of the light source by performing template matching between, for example, a template of the pupil and a template representing the corneal reflection image of the light source and the driver image, and detects the driver's line of sight based on the positional relationship between them.

[0063] In this modified example, when the driver's line of sight is not directed in the direction in which the vehicle 1 is traveling, the transition control unit 732 increases the degree of increase in the upper acceleration limit value in response to the passage of time from the detection of the operation to accelerate the vehicle 1 and the grip on the steering wheel 5, to a greater extent than when the driver's line of sight is directed in the direction in which the vehicle 1 is traveling.

[0064] It should be understood that those skilled in the art can make various changes, substitutions, and alterations thereto without departing from the spirit and scope of the present disclosure. [Explanation of symbols]

[0065] 1 vehicle 7 Driving control device 731 Driving control unit 732 Transition Control Section

Claims

1. a transition control unit that, when detecting an operation by a driver of the vehicle to accelerate the vehicle and a grip of the driver on a steering operation receiving unit that receives an operation by the driver to specify a steering direction and a steering degree of the vehicle during automatic driving in which acceleration and deceleration of the vehicle are automatically controlled, accelerates the vehicle in accordance with the operation to accelerate the vehicle while limiting the acceleration so that the acceleration of the vehicle is equal to or less than a predetermined acceleration upper limit value, and increases the acceleration upper limit value according to the passage of time from the detection of the operation to accelerate the vehicle and the detection of the grip of the steering operation receiving unit; A driving control device comprising:

2. 2. The driving control device according to claim 1, wherein, when an operation of the driver for changing lanes is detected, the transition control unit increases a degree of increase of the upper acceleration limit value according to the passage of time greater than a degree of increase in a case where an operation of the driver for changing lanes is not detected.

3. 2. The driving control device according to claim 1, wherein the transition control unit reduces a degree of increase in the upper acceleration limit value according to the passage of time when the driver's line of sight is not directed in the traveling direction of the vehicle compared to when the driver's line of sight is directed in the traveling direction of the vehicle.

4. 2. The driving control device according to claim 1, wherein the transition control unit accelerates the vehicle in accordance with an operation to accelerate the vehicle while limiting an acceleration corresponding to a combined control amount calculated by combining a manual control amount corresponding to an operation by the driver to accelerate the vehicle and a control amount for accelerating the vehicle by the automatic control at a predetermined ratio to be equal to or less than the upper acceleration limit value.

5. The cruise control device according to claim 4 , wherein the transition control unit calculates the combined control amount such that a ratio of the manual control amount increases over time.

6. A driving control device capable of automatically controlling the acceleration and deceleration of a vehicle, During automatic driving that automatically controls the acceleration and deceleration of the vehicle, when an operation by a driver of the vehicle to accelerate the vehicle and a grip of the driver on a steering operation receiving unit that receives an operation by the driver to specify a steering direction and a steering degree of the vehicle are detected, limiting the acceleration of the vehicle so that the acceleration is equal to or less than a predetermined upper acceleration limit; accelerating the vehicle in accordance with an operation for accelerating the vehicle; increasing the acceleration upper limit value in accordance with the lapse of time from the detection of an operation for accelerating the vehicle and the detection of gripping of the steering operation reception unit; A driving control method comprising the steps of:

7. During automatic driving that automatically controls the acceleration and deceleration of a vehicle, when an operation by a driver of the vehicle to accelerate the vehicle and a grip of the driver on a steering operation receiving unit that receives an operation by the driver to specify a steering direction and a steering degree of the vehicle are detected, limiting the acceleration of the vehicle so that the acceleration is equal to or less than a predetermined upper acceleration limit; accelerating the vehicle according to an operation for accelerating the vehicle; increasing the acceleration upper limit value according to the lapse of time from the detection of an operation to accelerate the vehicle and the detection of the gripping of the steering operation reception unit; A computer program for driving control that causes a computer mounted on the vehicle to execute the above-mentioned.

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