JP2022030622A - Door control device, and door control system and program - Google Patents

Abstract

To properly generate an assist force for a door opening/closing operation according to the intension of a user.SOLUTION: A controller (50) controls a drive unit (40) capable of generating a door assist force to assist in a door opening/closing operation performed by a user. The controller (50) includes acquisition sections (T1, T2) to acquire signals indicating that the user has operated an open switch (31) and a close switch (32), which are different from those for a door handle for opening a door; and an arithmetic unit (51) that controls the door assist force based on signals acquired at (T1,T2). The arithmetic unit (51) generates an open assist force acting in the door open direction when the open switch (31) is in an operated state, and generates a close assist force acting in the door close direction when the close switch (32) is in the operated state.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a door control device, a door control system and a program that generate an assist force for a door opening / closing operation.

Japanese Unexamined Patent Publication No. 2015-86588 (Patent Document 1) discloses a door control device including a motor that applies a regenerative braking force that hinders an operation of opening and closing a door for getting on and off a vehicle. This door control device does not generate regenerative braking force by the motor when the door handle for opening the door is in the operating state, the door handle is in the non-operating state, and the door is displaced in the opening direction. If so, the regenerative braking force of the motor is generated. As a result, when the user operates the door handle to open the door, the regenerative braking force of the motor does not act, so that the door can be easily opened. On the other hand, when the user releases the door handle to open the door, a regenerative brake is generated by the motor, so that the door may be displaced in the opening direction against the user's intention due to an external factor such as a strong wind. It is suppressed.

Japanese Unexamined Patent Publication No. 2015-86588

In the door control device described in JP-A-2015-86588, when the user releases the door handle and opens the door, the regenerative brake by the motor is always applied. Therefore, depending on the situation, the regenerative brake is used by the user. There is a concern that it will interfere with the door opening operation. For example, in a situation where the operating load in the opening direction is increasing due to an external factor such as a strong wind, it is assumed that the user desires an assist force acting in the door opening direction instead of the regenerative braking force. Even in such a situation, since the door control device described in Japanese Patent Application Laid-Open No. 2015-86588 generates a regenerative braking force, there is a concern that the user may feel uncomfortable.

The present disclosure has been made to solve the above-mentioned problems, and an object thereof is to appropriately generate an assist force for opening and closing a door according to a user's intention.

The door control device according to one aspect of the present disclosure controls a drive unit capable of generating a door assist force for assisting a user in opening and closing a door. This door control device has a first acquisition unit that acquires a signal indicating that the user has operated a switch different from the door handle for opening the door, and a door assist force based on the signal acquired by the first acquisition unit. It is equipped with a calculation unit that controls.

According to the above aspect, a switch different from the door handle for opening the door is provided, and the door assist force is controlled based on the operation of this switch. Therefore, when opening and closing the door, the user can generate the door assist force intended by the user by operating the switch even when the operation of the door handle is stopped. Therefore, the door assist force can be delicately controlled according to the situation as compared with the case where the door assist force is controlled according to the operation of the door handle.

The door control system according to one aspect of the present disclosure includes the above-mentioned door control device, switch and drive unit.

According to the above aspect, it is possible to realize a door control system capable of delicately controlling the door assist force according to the situation.

The program according to one aspect of the present disclosure is a program for controlling a drive unit capable of generating a door assist force for assisting a user in opening and closing a door, and a switch different from a door handle for opening the door is used. This is a program for causing the calculation unit to execute a step of acquiring a signal indicating that the user has operated and a step of controlling the door assist force based on the acquired signal.

According to the above aspect, the above-mentioned operation and effect can be obtained by causing the calculation unit to execute the above-mentioned program.

According to the present disclosure, an assist force for opening and closing a door can be appropriately generated according to a user's intention.

It is a figure which shows an example of the structure of the vehicle provided with a door control system schematically. It is a figure which shows an example of the structure of a door control system schematically. It is a flowchart (the 1) which shows an example of the processing procedure of a calculation part. It is a flowchart (2) which shows an example of the processing procedure of a calculation part.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals and the description thereof will not be repeated.

FIG. 1 is a diagram schematically showing an example of the configuration of a vehicle 1 including the door control system 10 according to the present embodiment. The vehicle 1 includes a vehicle body 2, a door 3 for getting on and off, a hinge 4, a door outer handle 5, a door inner handle 6, a door grip 7, a lock 8, a striker 9, and a door control system 10. Be prepared.

The door 3 is connected to the vehicle body 2 via the hinge 4. The door 3 is configured to be rotatable in the door opening direction or the door closing direction with respect to the vehicle body 2 with the hinge 4 as the center of rotation. Although FIG. 1 shows an example in which the door 3 is a swing type, the door 3 may be a slide type.

The lock 8 is provided at the rear end of the door 3 (the end far from the hinge 4 in FIG. 1). The striker 9 is provided at a position corresponding to the lock 8 on the vehicle body 2.

The door outer handle 5 is provided on the outside of the vehicle of the door 3, and the door inner handle 6 is provided on the inside of the vehicle of the door 3. In a state where the lock 8 and the striker 9 are engaged (hereinafter, also referred to as a “latch state”), when the user pulls the door outer handle 5 to the outside of the vehicle, the engagement between the lock 8 and the striker 9 is released. (Hereinafter referred to as "latch release state"), the door 3 can be opened. Similarly, when the user pulls the door inner handle 6 toward the room in the latched state, the latch is released and the door 3 can be opened.

The door control system 10 is provided in the door 3 and applies an assist force and a braking force to the door 3. In the present embodiment, the assist force is a force acting in the same direction as the displacement direction (rotation direction) of the door 3, and the braking force is a force acting so as to prevent the displacement (rotation) of the door 3. be. In the following, the assist force acting in the door opening direction is also described as "open assist force", and the assist force acting in the door closing direction is also described as "closing assist force".

The door control system 10 includes an acceleration sensor 20, an opening switch 31, a closing switch 32, a drive unit 40, and a control device 50.

The acceleration sensor 20 is configured to be able to detect the displacement direction of the door 3 by detecting the direction of the acceleration acting on the door 3. The acceleration sensor 20 transmits the detection result to the control device 50. The sensor that detects the displacement direction of the door 3 is not limited to the acceleration sensor 20. For example, a rotary encoder that detects the rotation direction of the door 3 may be used as a sensor that detects the displacement direction of the door 3.

The open switch 31 is a push switch for generating an open assist force. The open switch 31 is configured to be able to detect the amount of pressing (operation amount) by the user. When the open switch 31 is in the operating state of being pressed by the user, the open switch 31 transmits a signal including information indicating the pressing amount (operation amount) by the user to the control device 50.

The closing switch 32 is a push switch for generating a closing assist force. The open switch 31 is configured to be able to detect the amount of pressing (operation amount) by the user. When the closing switch 32 is in the operating state of being pressed by the user, the closing switch 32 transmits a signal including information indicating the pressing amount (operation amount) by the user to the control device 50.

The opening switch 31 is provided at a position where the thumb is expected to come into contact with the door grip 7 when the user in the vehicle grips the door grip 7. As a result, the user in the vehicle can easily press the opening switch 31 while grasping the door grip 7 and opening the door 3. The closing switch 32 is provided at a position where the index finger or the middle finger is expected to come into contact with the door grip 7 when the user in the vehicle grips the door grip 7. This makes it easier for the user in the vehicle to hold the door grip 7 and close the door 3 while pressing the closing switch 32.

The installation position of the opening switch 31 and the closing switch 32 is not limited to the above position, and can be set to any position inside the vehicle of the door 3. Further, instead of or in addition to the opening switch 31 and the closing switch 32, two types of switches similar to the opening switch 31 and the closing switch 32 may be provided on the outside of the vehicle of the door 3.

Further, the open switch 31 and the close switch 32 may be configured so as to be able to detect the degree of operation by the user, and are not necessarily limited to those that detect the pressing amount (operation amount). For example, a pressure sensor that detects a pressing force (operating force) may be used.

The drive unit 40 is configured to generate an open assist force, a closed assist force, and a braking force. The drive unit 40 is controlled according to a command from the control device 50.

FIG. 2 is a diagram schematically showing an example of the configuration of the door control system 10. As described above, the door control system 10 includes an acceleration sensor 20, an opening switch 31, a closing switch 32, a drive unit 40, and a control device 50.

The drive unit 40 includes a motor 41 that generates an assist force (open assist force, a closed assist force) and a brake 42 that generates a braking force. As for the configurations of the motor 41 and the brake 42, known configurations can be adopted.

The control device 50 includes acquisition units T1 to T3, output units T4 and T5, a calculation unit 51, and a storage unit 52.

The acquisition unit T1 is an input port from which a signal from the open switch 31 is acquired. The acquisition unit T2 is an input port from which a signal from the closing switch 32 is acquired. The acquisition unit T3 is an input port from which the detection result of the acceleration sensor 20 is acquired.

The output unit T4 is an output port for transmitting a control signal for controlling the assist force to the motor 41 of the drive unit 40. The output unit T5 is an output port for outputting a control signal for controlling the braking force to the brake 42 of the drive unit 40.

The storage unit 52 is a storage medium for storing information, programs, and the like used for the calculation of the calculation unit 51. The storage unit 52 is composed of storage elements such as a ROM (Read Only Memory) and a RAM (Random Access Memory). Further, the storage unit 52 may be a removable medium that can be removed from the control device 50.

The calculation unit 51 is connected to the acquisition units T1 to T3, the output units T4 and T5, and the storage unit 52. The calculation unit 51 is composed of a CPU (Central Processing Unit) or the like. The calculation unit 51 generates a control signal for controlling the assist force and the braking force generated by the drive unit 40 based on the signals acquired by the acquisition units T1 to T3, and the generated control signals are output units T4 and T5. Is output to the drive unit 40. As a result, the assist force and the braking force generated by the drive unit 40 are controlled by the control signal from the calculation unit 51.

The processing of the arithmetic unit 51 is performed by software processing, that is, the program stored in the storage unit 52 is read out by the arithmetic unit 51 and executed. The processing of the arithmetic unit 51 is not limited to software processing, and may be processed by dedicated hardware (electronic circuit).

FIG. 3 is a flowchart showing an example of a processing procedure performed by the calculation unit 51 when the open switch 31 is operated. This flowchart is repeatedly executed every time a predetermined condition is satisfied while the calculation unit 51 is operating.

The calculation unit 51 determines whether or not the open switch 31 is in the operating state (step S10). When the open switch 31 is not in the operating state (NO in step S10), the arithmetic unit 51 skips the subsequent processing and shifts the processing to the return.

When the open switch 31 is in the operating state (YES in step S10), the calculation unit 51 determines whether or not the door 3 is displaced in the open direction (step S12).

When the door 3 is displaced in the opening direction (YES in step S12), the calculation unit 51 generates an opening assist force according to the operation amount of the opening switch 31 (step S14). Specifically, the calculation unit 51 increases the opening assist force as the operation amount of the opening switch 31 increases.

On the other hand, when the door 3 is not displaced in the opening direction (NO in step S12), the calculation unit 51 determines whether or not the door 3 is displaced in the closing direction instead of generating the opening assist force. (Step S16).

When the door 3 is displaced in the closing direction (YES in step S16), the calculation unit 51 generates a braking force large enough to allow the door 3 to stand still (step S18).

After the processing of step S14 or step S18, the calculation unit 51 determines whether or not the open switch 31 has changed from the operating state to the non-operating state (step S20). When the open switch 31 is maintained in the operating state (NO in step S20), the calculation unit 51 returns the process to step S12 and repeats the processes after step S12.

When the open switch 31 changes from the operating state to the non-operating state (YES in step S20), the calculation unit 51 generates a braking force of a size capable of keeping the door 3 stationary (step S22).

After that, the calculation unit 51 determines whether or not the door 3 is slightly displaced in the closing direction (about the play of the brake 42) by the user performing the operation of closing the door 3 while the braking force is being generated (the degree of play of the brake 42). Step S24). When the door 3 is not displaced in the closing direction (NO in step S24), the calculation unit 51 skips the subsequent processing and shifts the processing to the return.

On the other hand, when the door 3 is displaced in the closing direction (YES in step S24), the calculation unit 51 stops the generation of the braking force (step S26). After that, the arithmetic unit 51 shifts the processing to the return.

The operation when the processing shown in FIG. 3 is performed will be described. It is assumed that a user in the vehicle opens the door 3 and gets off the vehicle. In this case, the user pulls the door inner handle 6 inward of the vehicle to release the latch, and then grips the door grip 7 to operate the door 3 in the opening direction. At this time, the opening assist force is generated by the user pressing the opening switch 31 while opening the door 3 (step S14). Therefore, the door 3 can be opened with a light force.

Further, the magnitude of the opening assist force is controlled by the operation amount of the opening switch 31. Therefore, when the operating load in the opening direction is large due to a disturbance factor such as a strong wind, the opening assist force can be increased by increasing the operating amount of the opening switch 31. As a result, the door 3 can be opened as intended by the user even when a disturbance factor such as a strong wind occurs.

Further, when the door 3 is displaced in the closing direction while the user presses the opening switch 31, a braking force is generated (step S18). Since the door 3 displaced in the closing direction is stopped by this braking force, it is suppressed that the door 3 continues to be displaced in the closing direction against the intention of the user due to an external factor such as an erroneous operation by the user or a strong wind. The door.

Further, even when the user stops pressing the opening switch 31, a braking force is generated (step S22). As a result, the user can stop the door 3 by the braking force by stopping the pressing of the opening switch 31. Therefore, when the user gets off the vehicle, it is possible to prevent the door 3 from being displaced too much in the opening direction against the intention of the user, for example, causing the door 3 to come into contact with a vehicle stopped next to the vehicle.

Further, after the user gets off the vehicle, if the door 3 that is stationary by the braking force is pushed in the closing direction from the outside of the vehicle and the door 3 is slightly displaced in the closing direction, the braking force is released (step). S26). Therefore, even when the user stops opening the door 3 and tries to close the door 3, the user can easily close the door 3 with a light force.

FIG. 4 is a flowchart showing an example of a processing procedure performed by the calculation unit 51 when the closing switch 32 is operated. This flowchart is repeatedly executed every time a predetermined condition is satisfied while the calculation unit 51 is operating.

The calculation unit 51 determines whether or not the closing switch 32 is in the operating state (step S50). When the closing switch 32 is not in the operating state (NO in step S50), the arithmetic unit 51 skips the subsequent processing and shifts the processing to the return.

When the closing switch 32 is in the operating state (YES in step S50), the calculation unit 51 determines whether or not the door 3 is displaced in the closing direction (step S52).

When the door 3 is displaced in the closing direction (YES in step S52), the calculation unit 51 generates a closing assist force according to the operation amount of the closing switch 32 (step S54). Specifically, the calculation unit 51 increases the closing assist force as the operation amount of the closing switch 32 increases.

On the other hand, when the door 3 is not displaced in the closing direction (NO in step S52), the calculation unit 51 determines whether or not the door 3 is displaced in the opening direction instead of generating the closing assist force. (Step S56).

When the door 3 is displaced in the opening direction (YES in step S56), the calculation unit 51 generates a braking force large enough to allow the door 3 to stand still (step S58).

After the processing of step S54 or step S58, the calculation unit 51 determines whether or not the closing switch 32 has changed from the operating state to the non-operating state (step S60). When the closing switch 32 is maintained in the operating state (NO in step S60), the calculation unit 51 returns the processing to step S52 and repeats the processing after step S52.

When the closing switch 32 changes from the operating state to the non-operating state (YES in step S60), the calculation unit 51 generates a braking force of a size capable of stopping the door 3 (step S62).

After that, the calculation unit 51 determines whether or not the door 3 is slightly displaced in the opening direction (about the play of the brake 42) by the user performing the operation of opening the door 3 while the braking force is being generated (the play of the brake 42). Step S64). When the door 3 is not displaced in the opening direction (NO in step S64), the calculation unit 51 skips the subsequent processing and shifts the processing to the return.

On the other hand, when the door 3 is displaced in the opening direction (YES in step S64), the calculation unit 51 stops the generation of the braking force (step S66). After that, the arithmetic unit 51 shifts the processing to the return.

The operation when the processing shown in FIG. 4 is performed will be described. It is assumed that the user in the vehicle closes the open door 3. In this case, the user grips the door grip 7 and operates the door 3 in the closing direction. At this time, the user presses the closing switch 32 while closing the door 3 to generate a closing assist force (step S54). Therefore, the door 3 can be closed with a light force.

Further, the magnitude of the closing assist force is controlled by the operation amount of the closing switch 32. Therefore, when the operating load in the closing direction is large due to a disturbance factor such as a strong wind, the closing assist force can be increased by increasing the operating amount of the closing switch 32. As a result, the door 3 can be closed as intended by the user even when a disturbance factor such as a strong wind occurs.

Further, when the door 3 is displaced in the opening direction while the user presses the closing switch 32, a braking force is generated (step S58). Since the door 3 displaced in the opening direction is stopped by this braking force, it is suppressed that the door 3 continues to be displaced in the opening direction against the intention of the user due to an external factor such as an erroneous operation by the user or a strong wind. The door.

Further, even when the user stops pressing the closing switch 32, a braking force is generated (step S62). As a result, the user can stop the door 3 by the braking force by stopping the pressing of the closing switch 32. Therefore, it is possible to suppress a situation in which the door 3 is excessively displaced in the closing direction against the intention of the user.

Further, when the door 3 is slightly displaced in the opening direction in an attempt to open the stationary door 3 by the braking force, the braking force is released (step S66). Therefore, even when the user stops closing the door 3 and tries to open the door 3, the user can easily open the door 3 with a light force.

As described above, in the door control system 10 according to the present embodiment, two types of switches (open switch 31 and closing switch 32) different from the door outer handle 5 and the door inner handle 6 for opening the door 3 are used. Is provided. Then, the user can generate a door assist force acting in a intended direction by properly using the operations of the two types of switches. Specifically, when the door 3 is opened, the opening assist force is generated by pressing the opening switch 31, and when the door 3 is closed, the closing assist force is generated by pressing the closing switch 32. be able to.

Further, the user can increase or decrease the magnitude of the assist force by adjusting the operation amount of the open switch 31 or the close switch 32. As a result, the assist force can be flexibly changed according to the situation, so that the door can be opened and closed more delicately.

Further, the user can generate a braking force to stop the door 3 by stopping the operation of the open switch 31 or the close switch 32. Therefore, it is possible to appropriately prevent the door 3 from being displaced in an unintended direction.

Further, the opening switch 31 is provided at a position where the thumb is expected to come into contact when the user grips the door grip 7, and the closing switch 32 has the index finger or the middle finger when the user grips the door grip 7. It is installed at a position where it is expected to come into contact. As a result, when the user wants to open the door 3, he / she opens the door 3 while pressing the opening switch 31 with his / her thumb, and when he / she wants to close the door 3, he / she presses the closing switch 32 with his / her index finger or the middle finger. 3 can be closed. Therefore, it is possible to seamlessly switch the opening and closing of the door 3.

<Modification example>
In the above-described embodiment, an example in which two types of switches (open switch 31 and closing switch 32) are provided has been described, but even if only one of the open switch 31 and the closing switch 32 is provided. good. For example, when only the opening switch 31 is provided, the process of FIG. 3 for generating the opening assist force according to the operation of the opening switch 31 may be performed. Further, when only the closing switch 32 is provided, the process of FIG. 4 for generating the opening assist force according to the operation of the closing switch 32 may be performed.

Further, although the example of generating the braking force has been described in the above-described embodiment, the generation of the braking force may be omitted.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present disclosure is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

The exemplary embodiments described above are specific examples of the following embodiments.

(1) The door control device according to one aspect of the present disclosure controls a drive unit capable of generating a door assist force for assisting a user in opening and closing a door. This door control device has a first acquisition unit that acquires a signal indicating that the user has operated a switch different from the door handle for opening the door, and a door assist force based on the signal acquired by the first acquisition unit. It is equipped with a calculation unit that controls.

According to the above aspect, a switch different from the door handle for opening the door is provided, and the door assist force is controlled based on the operation of this switch. Therefore, when opening and closing the door, the user can generate the door assist force intended by the user by operating the switch even when the operation of the door handle is stopped. Therefore, the door assist force can be delicately controlled according to the situation as compared with the case where the door assist force is controlled according to the operation of the door handle.

(2) In some embodiments, the drive unit can generate an opening assist force, which is a door assisting force acting in the opening direction of the door. The switch includes an opening switch for generating an opening assist force. The calculation unit generates an open assist force when the open switch is in the operating state, and does not generate an open assist force when the open switch is in the non-operating state.

According to the above aspect, the opening switch for generating the opening assist force is provided, and the opening assist force is generated when the opening switch is operated. Therefore, when the user wants to open the door, the user can generate an assist force acting in the intended opening direction by operating the opening switch.

(3) In some embodiments, a second acquisition unit that acquires a signal indicating the displacement direction of the door is further provided. The calculation unit generates an open assist force when the open switch is in the operating state and the door is displaced in the open direction.

According to the above aspect, the user can generate an opening assist force by displacing the door in the opening direction while operating the opening switch.

(4) In some embodiments, the drive unit is capable of generating a door braking force that acts to prevent displacement of the door. The arithmetic unit generates a door braking force when the open switch is in the operating state and the door is displaced in the closing direction.

According to the above aspect, when the door is displaced in the closing direction while the user operates the open switch, a door braking force is generated. This door braking force suppresses the displacement of the door. Therefore, it is possible to prevent the door from being continuously displaced in the closing direction against the intention of the user due to an external factor such as an erroneous operation by the user or a strong wind.

(5) In some embodiments, the drive unit is capable of generating a door braking force that acts to prevent displacement of the door. When the opening switch changes from the operating state to the non-operating state while the opening assist force is being generated, the calculation unit stops the generation of the opening assist force and generates the door braking force.

According to the above aspect, when the user stops the operation of the open switch, the door braking force is generated. As a result, the user can suppress the displacement of the door by stopping the operation of the open switch. Therefore, it is possible to prevent the door from being displaced too much in the opening direction against the intention of the user.

(6) In some embodiments, the arithmetic unit stops the generation of the door braking force when the door is displaced in the closing direction while the door braking force is being generated.

According to the above aspect, even when the door is stationary due to the door braking force, the braking force is released by the user pushing the door in the closing direction to displace it in the closing direction. Therefore, it is possible to prevent the door closing operation by the user from being hindered by the door braking force.

(7) In some embodiments, the drive unit can generate a closing assist force, which is a door assisting force acting in the closing direction of the door. The switch includes a closing switch for generating a closing assist force. The calculation unit generates a closing assist force when the closing switch is in the operating state, and does not generate the closing assist force when the closing switch is in the non-operating state.

According to the above aspect, the closing switch for generating the closing assist force is provided, and the closing assist force is generated when the closing switch is operated. Therefore, when the user wants to close the door, the user can generate an assist force acting in the intended closing direction by operating the closing switch.

(8) In some embodiments, a second acquisition unit that acquires a signal indicating the displacement direction of the door is further provided. The calculation unit generates a closing assist force when the closing switch is in the operating state and the door is displaced in the closing direction.

According to the above aspect, the user can generate a closing assist force by displacing the door in the closing direction while operating the closing switch.

(9) In some embodiments, the drive unit is capable of generating a door braking force that acts to prevent displacement of the door. The arithmetic unit generates a door braking force when the closing switch is in the operating state and the door is displaced in the opening direction.

According to the above aspect, when the door is displaced in the opening direction while the user operates the closing switch, a door braking force is generated. This door braking force suppresses the displacement of the door. Therefore, it is possible to prevent the door from being continuously displaced in the opening direction against the intention of the user due to an external factor such as an erroneous operation by the user or a strong wind.

(10) In some embodiments, the drive unit is capable of generating a door braking force that acts to prevent displacement of the door. When the closing switch changes from the operating state to the non-operating state while the closing assist force is being generated, the calculation unit stops the generation of the closing assist force and generates the door braking force.

According to the above aspect, when the user stops the operation of the closing switch, the door braking force is generated. As a result, the user can suppress the displacement of the door by stopping the operation of the closing switch. Therefore, it is possible to prevent the door from being displaced too much in the closing direction against the intention of the user.

(11) In some embodiments, the arithmetic unit stops the generation of the door braking force when the door is displaced in the opening direction while the door braking force is being generated.

According to the above aspect, even when the door is stationary due to the door braking force, the braking force is released by the user pushing the door in the opening direction and displacing the door in the opening direction. Therefore, it is possible to prevent the door closing operation by the user from being hindered by the door braking force.

(12) In some embodiments, the signal acquired by the first acquisition unit includes information indicating the degree of operation of the switch by the user. The calculation unit controls the magnitude of the door assist force according to the degree of operation of the switch.

According to the above aspect, the magnitude of the door assist force is controlled by the operation degree (operation amount, operation force, etc.) of the switch. Therefore, when the operating load of the door changes due to a disturbance factor or the like, the user can flexibly change the door assist force by adjusting the operation degree of the switch according to the change of the operating load. As a result, even when the operating load of the door changes due to a disturbance factor or the like, the door can be opened and closed as intended by the user.

(13) The door control system according to one aspect of the present disclosure includes the above-mentioned door control device, switch and drive unit.

According to the above aspect, it is possible to realize a door control system capable of delicately controlling the door assist force according to the situation.

(14) The program according to one aspect of the present disclosure is a program for controlling a drive unit capable of generating a door assist force for assisting a user in opening and closing a door, and is a door handle for opening a door. This is a program for causing the calculation unit to execute a step of acquiring a signal indicating that a user has operated a different switch and a step of controlling a door assist force based on the acquired signal.

According to the above aspect, the above-mentioned operation and effect can be obtained by causing the calculation unit to execute the above-mentioned program.

1 vehicle, 2 car body, 3 doors, 4 hinges, 5 door outer handle, 6 door inner handle, 7 door grip, 8 lock, 9 striker, 10 door control system, 20 accelerometer, 31 open switch, 32 close switch , 40 drive unit, 41 motor, 42 brake, 50 control device, 51 arithmetic unit, 52 storage unit.

Claims (14)

A door control device that controls a drive unit that can generate a door assist force to assist the user in opening and closing the door.
A first acquisition unit that acquires a signal indicating that the user has operated a switch different from the door handle for opening the door, and
A door control device including a calculation unit that controls the door assist force based on a signal acquired by the first acquisition unit. The drive unit can generate an opening assist force, which is the door assisting force acting in the opening direction of the door.
The switch includes an opening switch for generating the opening assist force.
The arithmetic unit
When the opening switch is in the operating state, the opening assist force is generated to generate the opening assist force.
The door control device according to claim 1, wherein the opening assist force is not generated when the opening switch is in a non-operating state. Further, a second acquisition unit for acquiring a signal indicating the displacement direction of the door is provided.
The door control device according to claim 2, wherein the calculation unit generates the opening assist force when the opening switch is in an operating state and the door is displaced in the opening direction. The drive unit can generate a door braking force that acts to prevent displacement of the door.
The door control device according to claim 3, wherein the calculation unit generates the door braking force when the opening switch is in an operating state and the door is displaced in the closing direction. The drive unit can generate a door braking force that acts to prevent displacement of the door.
3. The calculation unit stops the generation of the opening assist force and generates the door braking force when the opening switch changes from the operating state to the non-operating state while the opening assist force is generated. The door control device described in. The door control device according to claim 5, wherein the calculation unit stops the generation of the door braking force when the door is displaced in the closing direction while the door braking force is being generated. The drive unit can generate a closing assist force, which is the door assisting force acting in the closing direction of the door.
The switch includes a closing switch for generating the closing assist force.
The arithmetic unit
When the closing switch is in the operating state, the closing assist force is generated to generate the closing assist force.
The door control device according to claim 1 or 2, wherein the closing assist force is not generated when the closing switch is in a non-operating state. Further, a second acquisition unit for acquiring a signal indicating the displacement direction of the door is provided.
The door control device according to claim 7, wherein the calculation unit generates the closing assist force when the closing switch is in an operating state and the door is displaced in the closing direction. The drive unit can generate a door braking force that acts to prevent displacement of the door.
The door control device according to claim 8, wherein the calculation unit generates the door braking force when the closing switch is in the operating state and the door is displaced in the opening direction. The drive unit can generate a door braking force that acts to prevent displacement of the door.
8. The calculation unit stops the generation of the closing assist force and generates the door braking force when the closing switch changes from the operating state to the non-operating state while the closing assist force is being generated. The door control device described in. The door control device according to claim 10, wherein the calculation unit stops the generation of the door braking force when the door is displaced in the opening direction while the door braking force is being generated. The signal acquired by the first acquisition unit includes information indicating the degree of operation of the switch by the user.
The door control device according to any one of claims 1 to 11, wherein the calculation unit controls the magnitude of the door assist force according to the degree of operation of the switch. A door control system comprising the door control device, switch and drive unit according to any one of claims 1 to 12. A program for controlling a drive unit that can generate a door assist force to assist the user in opening and closing the door.
A step of acquiring a signal indicating that the user has operated a switch different from the door handle for opening the door, and
A step of controlling the door assist force based on the acquired signal, and
A program to make the arithmetic unit execute.

Images