JP6671239B2 - Electronic control unit - Google Patents

Description

  The present invention relates to an electronic control device. The present invention particularly relates to an electronic control device that controls opening and closing operations of a vehicle door.

  2. Description of the Related Art In recent years, vehicles employing a vehicle electric door system (a so-called power slide door system, a power rear gate system, etc.) have become widespread in order to improve the convenience of vehicle users. The vehicle electric door system is configured such that when a user performs a predetermined operation such as a switch operation or a remote control operation, a vehicle door such as a slide door or a rear gate opens and closes electrically. In such a vehicle electric door system, the opening and closing operation of the vehicle door is controlled by the electronic control unit.

  For example, Patent Document 1 discloses an electronic control device that controls opening and closing of a rear gate as an example of a vehicle door. In the electronic control device disclosed in Patent Literature 1, a user operates a rear gate opening switch (first operation switch) that is an operation switch provided on the rear gate and capable of receiving an opening operation by a user when the vehicle is stopped. At times, control is performed so that the rear gate is automatically opened. Further, when the user operates a rear gate closing switch (second operation switch) which is an operation switch provided on the rear gate and capable of accepting a closing operation by the user in a stopped state, the rear gate is automatically closed. To control.

JP 2013-119751 A

  By the way, in the electronic control device disclosed in Patent Document 1, the power supply voltage supplied from the vehicle battery to the first operation switch and the second operation switch is received so that the user can accept the opening or closing operation of the rear gate. The present inventors have recognized that it is supplying. Therefore, if no countermeasure is taken, the power supply voltage supplied from the vehicle battery is always supplied to the first operation switch and the second operation switch, so that the power supply voltage of the vehicle battery is continuously consumed. The present inventors have recognized. As described above, the present inventors have recognized that the electronic control device disclosed in Patent Literature 1 has room for improvement for reducing the power consumption of the vehicle battery.

  An object of the present invention is to provide an electronic control device for controlling the opening / closing operation of a vehicle door, which can reduce consumption of a power supply voltage of a vehicle battery. Other objects of the present invention will become apparent to those skilled in the art by referring to the aspects and best embodiments exemplified below and the accompanying drawings.

  Hereinafter, embodiments according to the present invention will be exemplified in order to easily understand the outline of the present invention.

A first aspect according to the present invention is an electronic control device that controls an opening / closing operation of a vehicle door in a vehicle electric door system,
A control unit that controls supply of a power supply voltage to at least one operation switch provided on the vehicle door,
The control unit relates to an electronic control unit that stops supply of the power supply voltage to the at least one operation switch based on an opening angle of the vehicle door when the vehicle is stopped.

  According to the first aspect, the wasteful supply of the power supply voltage of the vehicle-mounted battery to at least one operation switch that is difficult or impossible for the user to operate based on the opening angle of the vehicle door is stopped. As a result, the power consumption of the battery can be reduced.

A second aspect according to the present invention, in the first aspect, controls the opening and closing operation of a rear gate attached to a rear portion of the vehicle as the vehicle door,
The power supply voltage for a plurality of the operation switches including a first operation switch provided on an outer surface portion of a surface of the rear gate and a second operation switch provided on a lower end portion or an inner surface portion of the surface of the rear gate. Control the supply of
When the vehicle is in the stop state, the control unit is configured to control the power supply voltage for the first operation switch and / or the second operation switch corresponding to an opening angle of the rear gate among the plurality of operation switches. May be stopped.

  Since the first operation switch is provided on the outer surface of the front surface of the rear gate, for example, when the rear gate is in a fully opened state or close to the fully opened state, the position of the first operation switch is raised, so that the user operates the first operation switch. Can be difficult or impossible. Further, since the second operation switch is provided at the lower end or the inner surface of the front surface of the rear gate, for example, when the rear gate is in the closed state or close to the closed state, the position of the second operation switch faces the rear of the vehicle body, so that the user It may be difficult or impossible to operate the second operation switch. Therefore, it is possible to reduce consumption of the power supply voltage of the battery by stopping unnecessary supply of the power supply voltage of the vehicle-mounted battery to the first operation switch and / or the second operation switch corresponding to the opening angle of the rear gate.

In a third aspect according to the present invention, in the second aspect, the control unit comprises:
The open angle of the rear gate is an open angle when the rear gate is in a fully open state, and an open angle when the rear gate is closed by a predetermined angle from the fully open state, in an angle range between. When the power supply voltage is included in the first angle range, the supply of the power supply voltage to the first operation switch is stopped.
The opening angle of the rear gate is an opening angle when the rear gate is in a closed state, and an opening angle when the rear gate is opened by a predetermined angle from the closed state, in an angle range. When being included in a certain second angle range, the supply of the power supply voltage to the second operation switch may be stopped.

  When the opening angle of the rear gate is included in a first angle region where it is difficult or impossible for the user to operate the first operation switch, useless supply of the power supply voltage of the vehicle battery to the first operation switch is stopped. Can be done. In addition, when the opening angle of the rear gate is included in the second angle range where it is difficult or impossible for the user to operate the second operation switch, useless supply of the power supply voltage of the vehicle-mounted battery to the second operation switch. Can be stopped.

  Those skilled in the art will readily appreciate that the illustrated embodiments according to the present invention may be further modified without departing from the spirit of the invention.

It is the schematic which looked at the rear part of the vehicle which mounts a power rear gate system from the side. FIG. 2 is a block diagram illustrating an example of a configuration of an electronic control device illustrated in FIG. 1. FIG. 3 is a block diagram illustrating an example of an operation of a control unit illustrated in FIG. 2. 3 is a flowchart illustrating an example of an operation of the electronic control device illustrated in FIG. 2.

  The preferred embodiments described below are used for easy understanding of the present invention. Accordingly, those skilled in the art should note that the present invention is not unduly limited by the embodiments described below.

  An example of the configuration of the vehicle electric door system 10 will be described with reference to FIG. FIG. 1 shows a rear portion of a vehicle 1 on which a power rear gate system 10 is mounted as an example of a vehicle electric door system 10. In the power rear gate system 10 shown in FIG. 1, an electronic control unit (ECU; Electronic Control Unit) 20 according to the present invention controls the electric opening and closing operation of the rear gate 4 which is an example of the vehicle door 4. Note that the X axis of the XYZ orthogonal coordinate system described in FIG. 1 is the front-back direction of the vehicle 1 as viewed from the driver of the vehicle 1, the Y axis is the left-right direction of the vehicle 1 as viewed from the driver of the vehicle 1, The Z axis indicates the height direction of the vehicle 1.

  The power rear gate system 10 shown in FIG. 1 includes an ECU 20, a rear gate 4, and a rear gate driving device 40. The ECU 20 is provided, for example, at the rear of the vehicle body of the vehicle 1. A configuration example of the ECU 20 will be described later. In FIG. 1, the rear gate 4 shown by a solid line indicates the rear gate 4 in a fully opened state or a state close to a fully opened state, and the rear gate 4 shown by an imaginary line by a two-dot chain line is in a closed state or a closed state. This shows the rear gate 4 in a close state.

  The rear gate 4 is connected to the vehicle 1 via a hinge mechanism 3 attached to a rear end of the roof 2 of the vehicle 1. The rear gate 4 opens and closes so as to open and close a rear opening provided in a rear portion of the vehicle 1 by rotating about the hinge mechanism 3 as a rotation axis (that is, rotating around the Y axis).

  The rear gate 4 has a surface 80 including an outer surface portion 81, a lower end portion 82, and an inner surface portion 83. The outer surface portion 81 is a portion of the surface 80 facing the outside of the vehicle when the rear gate 4 is closed. The lower end 82 is the portion of the surface 80 facing the rear of the vehicle body when the rear gate 4 is closed. The inner surface portion 83 is a portion of the surface 80 facing the inside of the vehicle when the rear gate 4 is closed.

  A latch device 30 for locking the rear gate 4 is attached to, for example, substantially the center of the lower end portion 82 of the front surface 80 of the rear gate 4. The latch device 30 includes a latch motor 31, a latch mechanism 32, and a latch state detection switch 33. The latch device 30 has a latch state in which the latch mechanism 32 is engaged with a striker (not shown) of the vehicle body by driving the latch motor 31 under the control of the ECU 20, and an unlatched state in which the latch mechanism 32 is not engaged with the striker. Can be switched between the two states. The latch state detection switch 33 detects whether the latch mechanism 32 is in a latch state or an unlatched state.

  The rear gate 4 is provided with at least one operation switch that can receive a user operation. That is, on the outer surface portion 81 of the front surface 80 of the rear gate 4, the first operation switch 51 capable of receiving a user operation is arranged. For example, as shown in FIG. 1, the first operation switch 51 is disposed on the rear gate handle 7 which is attached substantially at the center of the outer surface portion 81 in the Z-axis direction when the rear gate 4 is closed. In addition, a second operation switch 52 that can receive a user's operation is arranged at a lower end portion 82 or an inner surface portion 83 of the front surface 80 of the rear gate 4. For example, as shown in FIG. 1, the second operation switch 52 is disposed near the latch device 30 at the lower end 82.

  The first operation switch 51 is an operation switch operated by the user when the rear gate 4 is opened, for example, and the second operation switch 52 is an operation switch operated by the user when the rear gate 4 is closed, for example. As shown in FIG. 1, when the second operation switch 52 is disposed at the lower end portion 82 of the front surface 80 of the rear gate 4, when the rear gate 4 is in the closed state or a state close to the closed state, the second operation switch 52 is in the closed state. Is facing the rear of the vehicle.

  As the first operation switch 51 and the second operation switch 52, for example, a switch configured by a normally-closed contact from which a contact that has come into contact when the switch is depressed is adopted. In order to determine that an operation such as pressing on the first operation switch 51 and the second operation switch 52 has been performed, the first operation switch 51 and the second operation switch 52 are provided with a control unit 21 of the ECU 20 described later. A power supply voltage is supplied from the vehicle-mounted battery 8 via the power supply.

  The rear gate drive device 40 is provided inside the rear pillar 5 of the vehicle 1. The rear gate drive device 40 includes a rear gate motor 41 that rotates under the control of the ECU 20 and a mechanical element 42 that converts the rotation operation of the rear gate motor 41 into an opening / closing operation of the rear gate 4. Specifically, the mechanical element 42 includes an arm 43 having one end connected to the rear gate 4, a power converter 44 that converts a rotation force of the rear gate motor 41 into a force for pushing up or lowering the arm 43, including.

  When the rear gate motor 41 rotates in one direction under the control of the ECU 20, the rear gate driving device 40 opens the rear gate 4 by applying, for example, a force to the rear gate 4 to push up the arm 43. Further, when the rear gate motor 41 rotates in the other direction under the control of the ECU 20, the rear gate driving device 40 closes the rear gate 4 by applying, for example, a force to the rear gate 4 to push the arm 43 down.

  As described above, the power rear gate system 10 automatically opens and closes the rear gate 4, but the user can naturally open and close the rear gate 4 manually. Note that a damper 6 is provided between the rear pillar 5 and the rear gate 4 of the vehicle 1 in order to assist the opening operation of the rear gate 4 manually or automatically. The damper 6 urges the rear gate 4 in an opening direction. The dampers 6 are provided one by one on the left and right rear pillars 5.

  An example of the configuration of the ECU 20 will be described with reference to FIG. The ECU 20 includes a control unit 21 including a microcomputer (microcomputer) and the like. The ECU 20 may further include, for example, a power supply circuit 23, a vehicle communication receiver 24, a rear gate motor drive circuit 25, and a latch motor drive circuit 26.

  The control unit 21 includes a processing unit including a CPU (Central Processing Unit), a storage unit including a memory such as a ROM and a RAM, and an input / output interface unit, all of which are not shown. The control unit 21 controls the entire power rear gate system 10 by causing the processing unit to execute a program stored in the storage unit.

  The power supply circuit 23 is, for example, a DC (Direct Current) / DC converter provided between the vehicle-mounted battery 8 and the control unit 21. The power supply circuit 23 converts a relatively high voltage (for example, 12 V) battery power supply voltage supplied from the vehicle-mounted battery 8 to a relatively low voltage (for example, 3.3 to 5.0 V) internal power supply voltage. Supply. The power supply circuit 23 may supply the internal power supply voltage to another circuit via an internal power supply voltage line (not shown).

  The vehicle communication receiver 24 is a communication interface provided between a control line 21 and a communication line 71 relating to a vehicle communication network such as a LIN (Local Interconnect Network) or a CAN (Controller Area Network). The vehicle communication receiver 24 realizes communication based on the LIN protocol, the CAN protocol, and the like between the control unit 21 and another vehicle-mounted device (not shown) connected to the communication line 71.

  The rear gate motor drive circuit 25 is a circuit provided between the rear gate motor 41 of the rear gate drive device 40 and the control unit 21 to generate a drive current for driving the rear gate motor 41. The rear gate motor drive circuit 25 supplies a drive current corresponding to a PWM (Pulse Width Modulation) signal received from the control unit 21 to the rear gate motor 41.

  The latch motor drive circuit 26 is a circuit provided between the latch motor 31 of the latch device 30 and the control unit 21 to generate a drive current for driving the latch motor 31. The latch motor drive circuit 26 supplies a drive current corresponding to the PWM signal received from the control unit 21 to the latch motor 31.

  Further, the control unit 21 is connected to the first operation switch 51, the second operation switch 52, the latch state detection switch 33, an angle sensor 61 described later, and the like. Therefore, the control unit 21 can recognize that the first operation switch 51 or the second operation switch 52 has been operated, the latched state or the unlatched state of the latch device 30, and the opening angle of the rear gate 4.

  Note that the angle sensor 61 is configured to be able to detect the opening angle of the rear gate 4. For example, the angle sensor 61 may be configured by an acceleration sensor or the like attached to the rear gate 4 so that the inclination of the rear gate 4 can be detected. Alternatively, the angle sensor 61 may be configured by a hall sensor or the like attached to the rear gate drive device 40 so as to detect the number of rotations of the rear gate motor 41. The opening angle of the rear gate 4 may be calculated by the control unit 21 based on the inclination of the rear gate 4 input from the angle sensor 61 or the number of rotations of the rear gate motor 41. Alternatively, the opening angle of the rear gate 4 may be calculated from the inclination of the rear gate 4 or the number of rotations of the rear gate motor 41 inside the angle sensor 61.

  Here, an operation when the closed rear gate 4 is opened in the power rear gate system 10 will be described. Note that the control unit 21 may determine that the rear gate 4 is in the closed state when inputting from the latch state detection switch 33 that the latch device 30 is in the latched state.

  The control unit 21 supplies a PWM signal to the latch motor drive circuit 26 so that the latch device 30 is in the unlatched state when the rear gate 4 is closed and, for example, the operation of the first operation switch is input. . Then, the control unit 21 supplies a PWM signal to the rear gate motor drive circuit 25 so that the rear gate 4 rotates in the opening direction. Thereafter, when the rear gate 4 reaches the set opening angle, the PWM signal supplied to the rear gate motor drive circuit 25 is stopped. Here, the set opening angle is an opening angle when the rear gate 4 is fully opened, or an opening angle of the rear gate arbitrarily set by a user.

  After the control unit 21 stops the PWM signal supplied to the rear gate motor driving circuit 25, the urging force by the damper 6, the frictional force by the mechanical element 42 (specifically, the power conversion unit 44) of the rear gate driving device 40, and the like. This prevents the rear gate 4 from closing due to its own weight.

  Next, the operation of the power rear gate system 10 when closing the open rear gate 4 will be described. When the opening angle of the rear gate 4 input from the angle sensor 61 is the set opening angle, the control unit 21 may determine that the rear gate 4 is in the open state. Alternatively, the control unit 21 may determine that the rear gate 4 is in the open state, for example, when the latch state detection switch 33 inputs that the latch device 30 is in the unlatched state.

  The control unit 21 supplies a PWM signal to the rear gate motor drive circuit 25 so that the rear gate 4 rotates in the closing direction when the rear gate 4 is in an open state and, for example, an operation on the second operation switch is input. I do. Then, the control unit 21 stops the PWM signal supplied to the rear gate motor drive circuit 25 when the rear gate 4 is closed. After that, the control unit 21 supplies a PWM signal to the latch motor drive circuit 26 so that the latch device 30 enters the latch state.

  Further, a third operation switch (not shown) may be arranged in the driver's seat of the vehicle 1. When the operation of the third switch is performed, the control unit 21 opens or closes the rear gate 4 as described above. You may. In addition, the control unit 21 may recognize, via the vehicle communication receiver 24, that an operation has been performed on a key terminal associated with a keyless entry system (not shown) connected to the communication line 71. The control unit 21 may open or close the rear gate 4 as described above when an operation is performed on a key terminal associated with the keyless entry system.

  Here, as described above, the first operation switch 51 is disposed on the outer surface 81 of the front surface 80 of the rear gate 4, and the second operation switch 52 is disposed on the lower end 82 or the inner surface 83 of the front gate 80 of the rear gate 4. . Therefore, depending on the opening angle of the rear gate 4, it is difficult or impossible for the user to operate the first operation switch 51 or the second operation switch 52.

  That is, for example, when the rear gate 4 is in the fully opened state or close to the fully opened state, the position of the first operation switch 51 is increased, so that it may be difficult or impossible for the user to operate the first operation switch 51. For example, when the rear gate 4 is in the closed state or close to the closed state, the user operates the second operation switch 52 by facing the rear of the vehicle body or by including the position of the second operation switch 52 in the vehicle. Operating the switch 52 can be difficult or impossible.

  Therefore, if no countermeasures are taken, the in-vehicle battery 8 may be connected to the first operation switch 51 or the second operation switch 52, which may be difficult or impossible for the user to operate depending on the opening angle of the rear gate 4. May continue to be supplied. Therefore, the control unit 21 of the ECU 20 stops supplying the power supply voltage of the vehicle-mounted battery 8 to at least one operation switch based on the opening angle of the rear gate 4. As a result, it is possible to reduce the consumption of the power supply voltage of the vehicle-mounted battery 8 by stopping the unnecessary supply of the power supply voltage of the vehicle-mounted battery 8 to at least one operation switch that is difficult or impossible for the user to operate. it can.

  Specifically, the control unit 21 stops useless supply of the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51 and / or the second operation switch 52 corresponding to the opening angle of the rear gate 4. The functional configuration of the control unit 21 for realizing such control of the control unit 21 will be described with reference to FIG. In FIG. 3, thin arrows in the figure represent signals such as commands, and thick arrows in the figure represent supply of power supply voltage.

  FIG. 3 shows, as a functional block diagram of the control unit 21, a part of the functional configuration of the control unit 21 that is realized by the processing unit executing a program stored in the storage unit. The power supply voltage supply block 211 supplies the power supply voltage supplied from the vehicle-mounted battery 8 and the power supply circuit 23 to the first operation switch operation determination block 212 and the second operation switch operation determination block 213.

  The opening angle calculation block 214 calculates the opening angle of the rear gate 4 based on the signal received from the angle sensor 61 and passes the calculated opening angle to the power supply determination block 215. The opening angle calculation block 214 also sends the calculated opening angle of the rear gate 4 to a rear gate control block (not shown).

  The power supply voltage determination block 215 that has received the opening angle of the rear gate 4 from the opening angle calculation block 214 determines each of the first operation switch operation determination block 212 and the second operation switch operation determination block 213 according to the opening angle of the rear gate 4. To the power supply voltage supply permission command or the power supply voltage supply prohibition command.

  The first operation switch operation determination block 212 supplies a power supply voltage to the first operation switch 51 when receiving the power supply voltage supply permission command from the power supply voltage supply determination block 215. On the other hand, the first operation switch operation determination block 212 does not supply the power supply voltage to the first operation switch 51 when receiving the power supply voltage supply prohibition command from the power supply voltage supply determination block 215.

  As the first operation switch 51, a switch constituted by a normally closed contact as described above is employed, and therefore, while the first operation switch operation determination block 212 supplies the power supply voltage to the first operation switch 51, Is supplied to the first operation switch operation determination block 212 again. Therefore, the first operation switch operation determination block 212 notifies the first operation switch 51 that an operation has been performed on the first operation switch 51 while the power supply voltage is being supplied to the first operation switch 51. Is determined by the fact that supply of power supply voltage via When the first operation switch operation determination block 212 determines that an operation has been performed on the first operation switch 51, the first operation switch operation determination block 212 passes the operation performed on the first operation switch 51 to the user operation determination block 216.

  Note that the second operation switch operation determination block 213 performs the same operation as the first operation switch operation determination block 212, and thus the description is omitted. The user operation determination block 216 determines whether the operation performed by the user has opened the rear gate 4 when the first operation switch 51 has been operated or the second operation switch 52 has been operated. It is determined whether the operation is the operation or the closing operation. The user operation determination block 216 passes a determination result as to whether the operation performed by the user is the opening operation or the closing operation of the rear gate 4 to a rear gate control block (not shown).

  Here, when the open angle of the rear gate 4 is included in the first angle region, the power supply voltage supply determination block 215 issues a power supply voltage supply prohibition command to the first operation switch operation determination block 212, and the second operation switch The power supply voltage supply permission command is issued to the operation determination block 213. The first angle area is an angle area between an open angle when the rear gate 4 is in a fully open state and an open angle when the rear gate 4 is closed by a predetermined angle from the fully open state.

  The state in which the rear gate 4 is closed by a predetermined angle from the fully opened state means that it is difficult or impossible for a user of standard height to operate the first operation switch 51, the outer surface 81 of the surface 80 of the rear gate 4. It is preferable that the rear gate 4 is opened such that the height of the rear gate 4 is increased. The state in which the rear gate 4 is closed by a predetermined angle from the fully opened state may differ depending on, for example, a vehicle type, and may be arbitrarily set by a user.

  When the opening angle of the rear gate 4 is included in the second angle region, the power supply voltage supply determination block 215 issues a power supply voltage supply permission command to the first operation switch operation determination block 212 and performs the second operation switch operation. The power supply voltage supply prohibition command is issued to the determination block 213. The second angle region is an angle region between an open angle when the rear gate 4 is in a closed state and an open angle when the rear gate 4 is opened by a predetermined angle from the closed state.

  The state in which the rear gate 4 is opened from the closed state by a predetermined angle means that the lower end portion 82 of the surface 80 of the rear gate 4 approaches the rear of the vehicle body to the extent that it is difficult or impossible for the user to operate the second operation switch 52. It is preferable that the rear gate 4 is opened as described above. The state in which the rear gate 4 is opened from the closed state by a predetermined angle may differ depending on, for example, the type of vehicle, and may be arbitrarily set by the user.

  When the open angle of the rear gate 4 is not included in any of the first angle area and the second angle area, the power supply voltage supply determination block 215 determines whether the first operation switch operation determination block 212 or the second operation switch operation determination block is present. 213 is issued a power supply voltage supply permission command.

  Referring to FIG. 4, the power supply voltage of vehicle-mounted battery 8 with respect to first operation switch 51 or second operation switch 52 of which ECU 20 makes it difficult or impossible for the user to operate according to the opening angle of rear gate 4. A series of flows of the operation for stopping the supply of the liquid will be described. The flowchart shown in FIG. 4 is started with the vehicle 1 stopped.

  In step S01, the control unit 21 determines whether or not the opening angle of the rear gate 4 is included in the first angle region. When the determination in step S01 is YES, the flow proceeds to step S02, and when the determination in step S01 is NO, the flow proceeds to step S03.

  In step S02, the control unit 21 determines whether or not the state in which the opening angle of the rear gate 4 is included in the first angle region has continued for a predetermined time. When the determination in step S02 is YES, the flow proceeds to step S04, and when the determination in step S02 is NO, the flow proceeds to step S03. Here, the predetermined time is, for example, 5 to 10 minutes.

  In step S03, the control unit 21 supplies the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51. Specifically, the power supply voltage determination block 215 issues a power supply permission command to the first operation switch operation determination block 212. When the processing in step S03 is completed, the flow proceeds to step S05.

  In step S04, the control unit 21 prohibits the supply of the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51. Specifically, the power supply voltage supply determination block 215 issues a power supply voltage supply prohibition command to the first operation switch operation determination block 212. When the processing in step S04 is completed, the flow proceeds to step S05.

  In step S05, the control unit 21 determines whether or not the opening angle of the rear gate 4 is included in the second angle region. When the determination in step S05 is YES, the flow proceeds to step S06, and when the determination in step S05 is NO, the flow proceeds to step S07.

  In step S06, the control unit 21 determines whether or not the state in which the opening angle of the rear gate 4 is included in the second angle region has continued for a predetermined time. When the determination in step S06 is YES, the flow proceeds to step S08, and when the determination in step S06 is NO, the flow proceeds to step S07. Here, the predetermined time is 5 minutes to 10 minutes similarly to the predetermined time in step S02.

  In step S07, the control unit 21 supplies the power supply voltage of the vehicle-mounted battery 8 to the second operation switch 52. Specifically, the power supply voltage supply determination block 215 issues a power supply voltage supply permission command to the second operation switch operation determination block 213. Upon completion of the process in the step S07, the flow returns to the start.

  In step S08, the control unit 21 prohibits the supply of the power supply voltage of the vehicle-mounted battery 8 to the second operation switch 52. Specifically, the power supply voltage supply determination block 215 issues a power supply voltage supply prohibition command to the second operation switch operation determination block 213. Upon completion of the process in the step S08, the flow returns to the start.

  Here, the predetermined time in step S02 may be 0 second. That is, the supply of the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51 may be prohibited simultaneously with or immediately after the control unit 21 determines that the opening angle of the rear gate 4 is included in the first angle region. Similarly, the predetermined time in step S06 may be 0 seconds. That is, supply of the power supply voltage of the vehicle-mounted battery 8 to the second operation switch 52 may be prohibited at the same time as or immediately after the control unit 21 determines that the opening angle of the rear gate 4 is included in the second angle region.

  However, when the predetermined time in step S02 and step S06 is not 0 second, for example, 5 minutes to 10 minutes, execution and prohibition of the supply of the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51 and the second operation switch 52 are prohibited. And frequent switching is suppressed. In other words, the power consumption of the power supply voltage of the vehicle-mounted battery 8 is increased by the process for frequently switching between the execution and the prohibition of the supply of the power supply voltage of the vehicle-mounted battery 8 to the first operation switch 51 and the second operation switch 52. Can be.

  When the rear gate 4 is provided with one operation switch, for example, only one of the first operation switch 51 and the second operation switch, a part of the flowchart illustrated in FIG. 4 is executed. Specifically, when only the first operation switch 51 is provided on the rear gate 4 on the outer surface portion 81 of the front surface 80 of the rear gate 4, in the flowchart shown in FIG. 4, steps S01, S02, S03, Then, step S04 is executed, and when the processing of step S03 or step S04 is executed, the flow returns to the start.

  Similarly, when only the second operation switch 52 is provided on the rear gate 4 at the lower end portion 82 or the inner surface portion 83 of the front surface 80 of the rear gate 4, in the flowchart shown in FIG. S07 and step S08 are executed. At this time, the determination in step S05 is performed immediately after the start of the flowchart shown in FIG.

  Further, in the embodiments described so far, the power rear gate system 10 has been described as an example of the vehicle electric door system 10, but the vehicle door 4 does not need to be limited to the rear gate 4. For example, in the case of a vehicle door 4 that can be electrically opened and closed in a vertical direction such as a gull wing or the like, depending on the opening angle of such a vehicle door 4, an operation switch provided by the user on such a vehicle door 4. Can be difficult or impossible to operate, so that the same effects as those described above are obtained.

  The present invention is not limited to the exemplary embodiments described above, and those skilled in the art will be able to easily modify the exemplary embodiments described above to the scope included in the claims. .

  DESCRIPTION OF SYMBOLS 1 ... vehicle, 4 ... vehicle door (rear gate), 8 ... vehicle-mounted battery, 10 ... vehicle electric door system (power rear gate system), 20 ... electronic control unit (ECU), Reference numeral 21: control unit, 40: rear gate drive device, 51: first operation switch, 52: second operation switch, 61: angle sensor, 80: rear gate surface, 81 ..The outer surface of the rear gate surface, 82... The lower end of the rear gate surface, 83... The inner surface of the rear gate surface.

Claims (3)

An electronic control device for controlling an opening and closing operation of a vehicle door in a vehicle electric door system,
A control unit that controls supply of a power supply voltage to at least one operation switch provided on the vehicle door,
The electronic control unit, wherein the control unit stops supplying the power supply voltage to the at least one operation switch based on an opening angle of the vehicle door when the vehicle is stopped. As the vehicle door, controlling the opening and closing operation of a rear gate attached to the rear of the vehicle,
The power supply voltage for a plurality of the operation switches including a first operation switch provided on an outer surface portion of a surface of the rear gate and a second operation switch provided on a lower end portion or an inner surface portion of the surface of the rear gate. Control the supply of
When the vehicle is in the stop state, the control unit is configured to control the power supply voltage for the first operation switch and / or the second operation switch corresponding to an opening angle of the rear gate among the plurality of operation switches. The electronic control device according to claim 1, wherein the supply of the electric power is stopped. The control unit includes:
The open angle of the rear gate is an open angle when the rear gate is in a fully open state, and an open angle when the rear gate is closed by a predetermined angle from the fully open state, in an angle range between. When the power supply voltage is included in the first angle range, the supply of the power supply voltage to the first operation switch is stopped.
The opening angle of the rear gate is an opening angle when the rear gate is in a closed state, and an opening angle when the rear gate is opened by a predetermined angle from the closed state, in an angle range. The electronic control device according to claim 2, wherein when included in a certain second angle region, the supply of the power supply voltage to the second operation switch is stopped.

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