JP2009250003A - Movable body drive unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive unit which drives a movable body by an electric motor, and which suppresses vibrations, generated by an external force, of the movable body by utilizing a braking force of the electric motor. <P>SOLUTION: This movable body drive unit drives the movable body which is provided in an opening of a vehicle so as to be openable and closable by the electric motor. The movable body drive unit comprises: a driving means for driving the movable body at least to a closed state; the electric motor for supplying a driving force to the driving means; a detection means for detecting whether or not the movable body is in a fully closed state; and a control means for performing the control of the supply of electric power necessary for the electric motor. The control means performs control for connecting both terminals of the electric motor to each other so that the electric motor can be put into a dynamic braking state when the detection means detects that the movable body is in the fully closed state and an ignition signal of the vehicle in an on-state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a movable body driving device that drives a movable body provided in an opening and closing of various vehicles by an electric motor, and the electric motor is used for various movable bodies such as a door, a tailgate, a trunk lid, and a sunroof that close the opening of the vehicle. The present invention relates to control when the movable body driving device that opens and closes using the driving force is fully closed.

  A movable body that can be opened and closed at the opening of various vehicles, for example, a door that closes the opening of the vehicle, an open car roof, a tailgate, a trunk lid, a sunroof, a window glass, etc., configured to be driven by an electric motor ( There is a movable body drive device).

As these movable body drive devices, there are various mechanisms such as those that can be opened and closed electrically, and auto-closures that drive from a half-door to a fully closed state.
Note that details of this type of movable body driving device are described in Patent Document 1 below.
Japanese Patent Laid-Open No. 2003-106045 (FIG. 1)

  Here, in the movable body drive device described in Patent Document 1 above, when the movable body is in the closed state, both terminals of the electric motor are controlled to be in the open state (Steps S1204 to S1205 and Step S1304 in Patent Document 1). ~ S1305).

  Here, since both terminals of the motor are controlled to be in an open state after the motor is stopped, the problem that the motor moves even with a small external force is a new problem for the inventors of the present application. I found it. That is, when the weight of the movable body is large, if there is a slight play in the lock mechanism, vibration may occur as rattling.

  The present invention has been made in view of the above problems, and the problem is that in an apparatus for driving a movable body by an electric motor, vibration due to an external force of the movable body can be suppressed using the braking force of the electric motor. It is in providing a movable body drive device.

The present invention for solving the above-mentioned problems is configured as follows.
(1) The invention according to claim 1 is a movable body driving device for driving a movable body provided in an opening of a vehicle by an electric motor, the driving means for driving the movable body to at least a closed state, An electric motor for supplying a driving force to the driving means; a detecting means for detecting whether the movable body is in a fully closed state; and a control means for performing a control for supplying electric power necessary for the electric motor. The detection means detects that the movable body is in a fully closed state, and when the ignition signal of the vehicle is in an on state, both terminals of the motor are set so that the motor is in a power generation brake state. It is a movable body drive device characterized by performing control to connect.

  (2) The invention according to claim 2 is a movable body driving device for driving a movable body provided in an opening of a vehicle so as to be openable and closable by an electric motor, and driving means for driving the movable body at least in a closed state; Detection means for detecting whether or not the movable body is in a fully closed state, a lock means for restraining the movable body that is driven in a fully closed state, an electric motor that supplies a driving force to the driving means, and an electric motor required for the electric motor Control means for performing control to supply electric power, and the control means is detected by the detection means when the movable body is in a fully closed state, and when the ignition signal of the vehicle is in an on state. The movable body drive device is characterized in that control is performed to connect both terminals of the motor so that the motor is in a power generation brake state.

  (3) The invention according to claim 3 further includes speed detection means for detecting a moving speed of the vehicle, and the control means is detected by the detection means when the movable body is in a fully closed state, Even if the ignition signal of the vehicle is on, if the moving speed of the vehicle detected by the speed detecting means is 0, control is performed to open both terminals of the electric motor, and the movable body is When the fully-closed state is detected by the detecting means and the vehicle ignition signal is on and the moving speed of the vehicle detected by the speed detecting means is other than 0, the motor generates power. 3. The movable body drive device according to claim 1, wherein control is performed to connect both terminals of the electric motor so as to be in a brake state.

  (4) The invention according to claim 4 further includes a propulsive force transmission mechanism for transmitting or interrupting the propulsive force of the vehicle, wherein the control means is configured such that the movable body is in a fully closed state and the ignition signal of the vehicle is Even in the on state, when the propulsive force transmission mechanism is in the cut-off state, control is performed to open both terminals of the electric motor, the movable body is in the fully closed state, and the ignition signal of the vehicle When the propulsive force transmission mechanism is in a transmittable state, control is performed to connect both terminals of the motor so that the motor is in a power generation brake state. It is a movable body drive device of Claim 1 or Claim 2.

  (5) In the invention according to claim 5, the propulsive force transmission mechanism is a transmission, and the control means moves the vehicle if the movable body is in a fully closed state and a vehicle ignition signal is in an on state. 5. The control for connecting both terminals of the motor so that the motor is in a power generation brake state when the transmission is in a forward state or a reverse state regardless of speed. It is this movable body drive device.

  (6) In the invention according to claim 6, the control means closes both terminals of the electric motor via connection switching means for supplying electric power for driving the electric motor when the electric motor is in a power generation brake state. The movable body drive device according to any one of claims 1 to 5, wherein the movable body drive device is connected by a circuit.

  (1) In the invention of the movable body drive device according to claim 1, when the movable body is in the fully closed state, it is detected by the detection means, and when the ignition signal of the vehicle is in the on state, the motor is The control means performs control for connecting both terminals of the electric motor so as to be in a state.

  As a result, in the device that drives the movable body by the electric motor, the electric motor is driven as a generator by the movement and vibration of the movable body, but since both terminals of the electric motor are connected, the power generation brake state is established. Become. As a result, the movement and vibration of the movable body are reduced.

  (2) In the invention of the movable body drive device according to claim 2, the movable body is restrained by the locking means in the fully closed state, and the detection means detects that the movable body is in the fully closed state. When the ignition signal is on, the control means performs control for connecting both terminals of the motor so that the motor is in the power generation brake state.

  As a result, in the device that drives the movable body by the electric motor, the electric motor is driven as a generator by the movement and vibration of the movable body, but since both terminals of the electric motor are connected, the power generation brake state is established. Become. As a result, the movement and vibration of the movable body are reduced.

  That is, when vibration occurs in the movable body, in addition to restraint by the lock means, vibration and movement are further reduced by the short brake or power generation brake of the electric motor, so that reliable restraint is realized.

  (3) The invention of the movable body drive device according to claim 3 further comprises speed detecting means for detecting the moving speed of the vehicle, wherein the movable body is detected to be in a fully closed state, and the ignition signal is in an on state. Even when the moving speed of the vehicle detected by the speed detecting means is 0, the power generation brake is controlled so as not to act by opening both terminals of the motor.

  On the other hand, when it is detected that the movable body is in the fully closed state, the ignition signal of the vehicle is on, and the moving speed of the vehicle detected by the speed detecting means is other than 0, the motor is in the power generation braking state. Control to connect both terminals of the motor is performed.

  As a result, while the vehicle having a device for driving the movable body by the electric motor is running (the speed is other than 0), the electric motor is driven as a generator by the movement and vibration of the movable body, but both terminals of the electric motor are connected. Therefore, the power generation brake state is entered. As a result, the movement and vibration of the movable body are reduced in the traveling vehicle.

  (4) According to the invention of the movable body drive device described in claim 4, further comprising a propulsive force transmission mechanism for transmitting or blocking the propulsive force of the vehicle, the movable body is in a fully closed state, and the ignition signal of the vehicle is Even in the on state, when the propulsive force transmission mechanism is in the cut-off state, the power generation brake is controlled so as not to act by opening both terminals of the electric motor.

  On the other hand, when the movable body is in the fully closed state, the ignition signal of the vehicle is on, and the propulsive force transmission mechanism is in a transmittable state, both terminals of the motor are set so that the motor is in a power generation brake state. Control to connect.

  Thereby, when the propulsive force transmission mechanism of the vehicle having a device for driving the movable body by the electric motor is in a transmittable state, the electric motor is driven as a generator by the movement and vibration of the movable body, but both ends of the electric motor Since the child is connected, the power generation brake state is set. As a result, in a vehicle that can travel, the movement and vibration of the movable body are reduced.

  (5) In the invention of the movable body drive device according to claim 5, the propulsive force transmission mechanism is a transmission, and if the movable body is in a fully closed state and the ignition signal of the vehicle is in an on state, it depends on the moving speed of the vehicle. First, when the transmission is in the forward or reverse state, control is performed to connect both terminals of the electric motor so that the electric motor is in the power generation brake state.

  Thereby, when the propulsive force transmission mechanism of a vehicle having a device for driving the movable body by an electric motor is in a state where transmission is possible as forward or backward, the electric motor is driven as a generator by the movement or vibration of the movable body. Since both terminals of the motor are connected, the power generation brake state is established. As a result, in a vehicle that can travel, the movement and vibration of the movable body are reduced.

  (6) In the invention of the movable body drive device according to claim 6, both ends of the motor are connected via connection switching means such as a relay or a semiconductor switching element connected to supply the drive power necessary for the motor. By connecting the child by a closed circuit, the electric power generated in the winding of the electric motor is consumed, and the electric motor is brought into a power generation brake state.

  Thus, by using the electric motor that drives the movable body and the connection switching means, it is possible to reliably realize a power generation brake that suppresses the movement and vibration of the movable body without providing a special mechanism.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
First, as an embodiment of the present invention, a movable body driving device that drives a movable body that can be opened and closed in openings of various vehicles by an electric motor will be described.

  Here, the term “vehicle” refers to railway vehicles such as trains, trains, and trains, military vehicles such as tanks, armored vehicles, and self-propelled artillery vehicles, vehicles based on the Road Traffic Act such as automobiles, motorbikes and light vehicles, and construction machinery. Various vehicles such as construction vehicles that can run, agricultural vehicles that can be self-propelled by agricultural machinery, and industrial vehicles that can be self-propelled by industrial machinery are applicable.

  Here, the movable bodies that can be opened and closed at the openings of various vehicles include various movable bodies such as doors, tailgates, trunk lids, hatches, sunroofs, and window glasses that block the openings of the various vehicles described above. In this case, it can be opened and closed using the driving force of the electric motor. In addition, although an aircraft generally does not correspond to a vehicle, it can handle the door of an aircraft similarly.

  In this embodiment, the movable body drive device may open and close the movable body with the driving force of the electric motor, or close the movable body from the half door state to the fully closed state with the driving force of the electric motor. There may be.

  In this embodiment, the description will focus on the configuration requirements regarding the features of the movable body drive device 100. Therefore, it is general as a movable body driving device, and various modifications and applications are possible for the well-known configuration requirements, or various vehicles themselves, or various movable bodies themselves. Detailed description is omitted.

  FIG. 1 is a circuit diagram showing a configuration of a main part of the movable body driving apparatus 100. In FIG. 1, power is supplied to each part of the movable body driving apparatus 100 from a battery (not shown), and the positive electrode of the battery is connected to + B and the negative electrode is connected to ground (ground).

When an ignition switch (not shown) is turned on and turned on, a positive voltage is generated in the ignition signal IG.
The CPU 101 is a control unit that controls each part of the movable body driving device 100, and receives various signals such as various switches, various sensors, vehicle speed detection results, transmission detection results, and controls the switching state of relays to be described later. It has a function to do.

  Here, the CPU 101 detects that the movable body is in the fully closed state by the detecting means (a fully closed detection sensor 130 described later) and, when the ignition signal IG of the vehicle is in the on state, the motor (described later). Control is performed to connect both terminals of the electric motor so that the drive motor 190) is in a power generation brake state.

  Further, the CPU 101 detects that the movable body is in the fully closed state, and if the moving speed of the vehicle detected by the speed detecting means is 0 even if the ignition signal is in the on state, both terminals of the motor Is controlled so that the power generation brake does not act. On the other hand, when it is detected that the movable body is in the fully closed state, the ignition signal of the vehicle is on, and the moving speed of the vehicle detected by the speed detecting means is other than 0, the motor is in the power generation braking state. Control to connect both terminals of the motor is performed.

  Further, the CPU 101 determines that the electric motor is used when the propulsive force transmission mechanism (transmission) is in the shut-off state (neutral, parking) even when the movable body is fully closed and the ignition signal of the vehicle is on. The power generation brake is controlled so that it does not act by opening both terminals. On the other hand, when the movable body is in the fully closed state, the ignition signal of the vehicle is on, and the propulsive force transmission mechanism is in a transmittable state (forward or reverse), so that the motor is in the power generation brake state. Control is performed to connect both terminals of the motor.

  The opening / closing operation switch 110 includes a first switch that connects the switch piece to the contact on the open side from the neutral position to open the movable body, and a switch piece that is closed from the neutral position to close the movable body. It has two functions of the 2nd switch connected to the contact of this.

  The full-open detection sensor 120 is a movable-body full-open detection means that is provided at the fully-open position of the movable body and that enters a predetermined state (on or off) when the movable body reaches the fully-open position. The fully open detection sensor 120 may be a switch arranged at a predetermined position or an encoder that detects the amount of movement of the movable body.

  The fully-closed detection sensor 130 is a movable-body fully-closed detecting means that is provided at the fully-closed position of the movable body and that enters a predetermined state (on or off) when the movable body reaches the fully-closed position. The full-close detection sensor 130 may be a switch arranged at a predetermined position, or an encoder that detects the amount of movement of the movable body.

The relay 140 is a switching unit having a normally open contact for supplying a positive voltage from the battery to each unit in accordance with the presence or absence of the ignition signal IG.
Depending on the ignition signal IG and the signal from the control port of the CPU 101, the relay 150 determines whether one terminal of the drive motor 190 is on the positive voltage side from the battery or on the negative voltage side (ground side) from the battery. Switching means for connecting either one.

  Depending on the ignition signal IG and the signal from the control port of the CPU 101, the relay 160 is connected to the other terminal of the drive motor 190 on the positive voltage side from the battery or via a normally-open contact relay 170 described later. Switching means for connecting any one of the negative voltage side (ground side).

  The relay 170 is a switching unit that connects the ground side to the other terminal of the drive motor 190 via the relay 160 in accordance with the ignition signal IG and a signal from the control port of the CPU 101.

  The electric / manual changeover switch 180 is connected between the other terminal of the drive motor 190 and the relay 160. When the electric / manual changeover switch 180 is switched to the electric side, the electric / manual changeover switch 180 is connected between the other terminal of the drive motor 190 and the relay 160. When the connection is made in the conductive state and the switch is made to the manual side, it is a switching means for cutting off (opening) the other terminal of the drive motor 190 and the relay 160. In this embodiment, it is assumed that the electric / manual changeover switch 180 is switched to the electric side.

  The drive motor 190 is an electric motor as a drive source that drives a movable body (not shown) at least in the fully closed direction. The drive motor 190 acts as a generator and generates electric power when the movable body moves or vibrates due to an external force.

Hereinafter, the control of opening and closing of the movable body by the CPU 101 will be described with reference to the flowchart of FIG.
First, it is assumed that an “open” or “close” operation has occurred in the opening / closing operation switch 110 that is normally neutral and localized (step S1001 in FIG. 2). When the door or tailgate is provided with an auto-closure function, if it is detected that the door or tailgate is closed to the half-door position, the CPU 101 sets the “open / close operation switch 110” to “ It is handled in the same way as the “Close” operation.

  When the operation on the operation switch 110 is “open” (“open” in step S1002 in FIG. 2), the CPU 101 detecting this operation switches the contact of the relay 150 to the positive voltage side of the battery and relay 160 2 is switched to the ground side via the relay 170, and further, the contact of the relay 170 is closed to supply power to rotate the drive motor 190 to drive the movable body in the opening direction (step in FIG. 2). S1003).

  Here, CPU 101 continues to drive drive motor 190 (step S1003 in FIG. 2) until fully open detection sensor 120 detects that the movable body has reached the fully open position (NO in step S1004 in FIG. 2). . The switching state of each relay in this state is shown in FIG.

  When the fully open detection sensor 120 detects that the movable body has reached the fully open position (YES in step S1004 in FIG. 2), the CPU 101 switches the contact of the relay 150 from the positive voltage side of the battery to the ground side and drives it. The power supply to the motor 190 is turned off (step S1005 in FIG. 2).

  Further, the CPU 101 opens the contact of the relay 170 and opens the terminals of the drive motor 190 (step S1006 in FIG. 2). This switching state is shown in FIG. Note that the switching of the contact of the relay 150 to the ground side in step S1005 is not performed, and the stop of the power supply and the opening between both terminals of the drive motor are simultaneously performed even by opening the contact of the relay 170 in step S1006. realizable.

  In this state, since both terminals of the drive motor are open, the power generation brake by the drive motor 190 does not act even when the movable body is closed manually by an external force, for example, so that the movable body can be freely released with a small force. It is possible to move to.

  Further, when an operation of “close” occurs in the opening / closing operation switch 110 that is normally neutral and localized (“close” in step S1001 and step S1002 in FIG. 2), the CPU 101 that detects this operation is connected to the relay 101 The contact of 150 is switched to the ground side of the battery, the contact of the relay 160 is switched to the positive voltage side of the battery, and power is supplied to rotate the drive motor 190 to drive the movable body in the closing direction (in FIG. 2). Step S1007).

  When the door or tailgate is provided with an auto-closure function, if it is detected that the door or tailgate is closed to the half-door position, the CPU 101 sets the “open / close operation switch 110” to “ It is handled in the same way as the “Close” operation.

  Here, until the fully-closed detection sensor 130 detects that the movable body has reached the fully-closed position (NO in step S1008 in FIG. 2), the CPU 101 drives the drive motor 190 (step S1007 in FIG. 2). continue. The switching state of each relay in this state is shown in FIG.

  When the fully closed detection sensor 130 detects that the movable body has reached the fully closed position (YES in step S1008 in FIG. 2), the CPU 101 switches the contact of the relay 160 from the positive voltage side of the battery to the ground side. Then, the power supply to the drive motor 190 is turned off (step S1009 in FIG. 2).

  Here, the CPU 101 detects whether or not the ignition signal IG is on (step S1010 in FIG. 2). Here, instead of detecting that the ignition signal IG is in the ON state, the vehicle speed obtained from the vehicle speed information is other than 0, the state of the transmission obtained from the shift information is forward or backward (other than neutral or parking), etc. May be detected.

  If the ignition signal IG is in an off state (NO in step S1010 in FIG. 2), the CPU 101 opens the contact of the relay 170 and opens between both terminals of the drive motor 190 (in FIG. 2). Step S1006). This switching state is shown in FIG.

  In this state, since the ignition signal IG is in an off state, that is, the engine is stopped, power generation by the drive motor 190 is also performed when the movable body is closed by an external force, for example, manually by opening the both terminals of the drive motor. Since the brake does not act, the movable body can be moved freely with a small force. Similarly, when it is detected that the vehicle speed is 0 and the transmission is at the parking position, the CPU 101 similarly opens the drive motor terminals and closes the movable body by an external force, for example, manually. However, since the power generation brake by the drive motor 190 does not act, the movable body can be moved freely with a small force.

  In addition, when the current supply to the coils of each relay stops, the contact of the relay 170 is opened, and the contact of each part or the By configuring the connection, it is desirable that the ignition signal IG is off, that is, power is not consumed when the engine is stopped.

  On the other hand, if the ignition signal IG is in the ON state (YES in step S1010 in FIG. 2), the CPU 101 has already switched to the ground side between the relay 160 and the relay 150, and in addition, the contact of the relay 170 is changed. By closing, both terminals of the drive motor 190 are short-circuited (step S1011 in FIG. 2). The switching state of each relay in this state is shown in FIG.

  In this state, since the ignition signal IG is on, that is, the engine is running or just before starting the engine, the drive motor both terminals are short-circuited and the movable body is moved or vibrated by an external force. In this case, the drive motor 190 is in a power generation brake state. As a result, in a vehicle that can travel, the movement and vibration of the movable body are reduced by the power generation brake. That is, when the movable body of the traveling vehicle vibrates, the power generation brake acts in a direction to suppress this vibration. In addition to suppressing vibrations, safety is also ensured by suppressing the operation of manually opening a movable body such as a door by a power generation brake in a running vehicle.

  In this case, the CPU 101 controls the power generation brake to operate depending on whether the ignition signal IG is on, but the vehicle speed is other than 0 (during traveling), and the transmission is in a travelable state such as a drive range or reverse range. Similarly, it is desirable to apply the power generation brake.

  Further, in the description of FIG. 2 above, a specific example of the case where the control of the power generation brake (steps S1006 and S1011 in FIG. 2) is performed with the opening / closing operation of the movable body (step S1001 in FIG. 2) as a trigger However, the present invention is not limited to this. That is, the CPU 101 determines whether the ignition signal IG is on, the vehicle speed is other than 0, the transmission is in the drive range or reverse, regardless of the occurrence of the opening / closing operation of the movable body (step S1001 in FIG. 2). Whether or not the vehicle is ready to travel, such as a range, is almost always detected at predetermined timings, and it is desirable to apply a power generation brake as in the above case.

  Further, in the movable body drive device 100 provided with the lock means (not shown) for restraining the movable body when the movable body is fully closed, the movable body is restrained by the lock means as described above. It is desirable to apply a power generation brake by the drive motor 190. Thus, in addition to restraining the movable body by the lock means, vibration and movement of the movable body are suppressed by the power generation brake of the drive motor 190, so that the movable body can be restrained more reliably.

  According to the movable body drive device 100 of the present embodiment described in detail above, the following effects can be obtained. Hereinafter, the effects of the movable body drive device 100 of the present embodiment will be described for each case.

  (1) When the movable body is in the fully closed state, it is detected by the fully closed detection sensor 130, and when the ignition signal IG of the vehicle is in the on state, the drive motor 190 is set so that the drive motor 190 is in the power generation brake state. The CPU 101 performs control for connecting the two terminals. As a result, in a device that drives the movable body by the drive motor 190, the drive motor 190 is driven as a generator by the movement and vibration of the movable body, but both terminals of the drive motor 190 are connected to a short circuit state. Therefore, the power generation brake state is entered. As a result, the movement and vibration of the movable body are reduced.

  (2) When the movable body is restrained by the locking means in the fully closed state, and when the movable body is in the fully closed state, it is detected by the fully closed detection sensor 130 and the ignition signal IG of the vehicle is on. The CPU 101 performs control for connecting both terminals of the drive motor 190 so that the drive motor 190 is in the power generation brake state. As a result, in a device that drives the movable body by the drive motor 190, the drive motor 190 is driven as a generator by the movement and vibration of the movable body, but both terminals of the drive motor 190 are connected to a short circuit state. Therefore, the power generation brake state is entered. As a result, the movement and vibration of the movable body are reduced. That is, when vibration is generated in the movable body, the vibration is further reduced by the short brake or the power generation brake of the drive motor 190 in addition to the restraint by the lock means.

  (3) Both terminals of the drive motor 190 are opened when the movable body is detected to be fully closed and the vehicle speed detected by the vehicle speed information is 0 even if the ignition signal IG is on. By setting the state, the power generation brake is controlled so as not to act. On the other hand, when it is detected that the movable body is in the fully closed state, the vehicle ignition signal IG is on, and the moving speed of the vehicle detected by the vehicle speed information is other than 0, the drive motor 190 generates the power generation brake. Control is performed to connect both terminals of the drive motor 190 so as to be in a state. Thus, while the vehicle having a device for driving the movable body by the drive motor 190 is traveling (the speed is other than 0), the drive motor 190 is driven as a generator by the movement and vibration of the movable body. Since both terminals 190 are connected in a short-circuited state, a power generation braking state is established. As a result, the movement and vibration of the movable body are reduced in the traveling vehicle.

  (4) Even if the movable body is fully closed and the ignition signal IG of the vehicle is on, both terminals of the drive motor 190 are connected when the transmission is in the parking state or the neutral state. By making it open, it is controlled so that the power generation brake does not work. On the other hand, when the movable body is in the fully closed state, the ignition signal IG of the vehicle is on, and the transmission is in a transmittable state (forward or reverse), the drive motor 190 enters the power generation brake state. Control is performed so that both terminals of the drive motor 190 are connected. Thereby, when the driving force of a vehicle having a device for driving the movable body by the drive motor 190 is in a transmittable state, the drive motor 190 is driven as a generator by the movement and vibration of the movable body. Since both terminals of the motor 190 are connected in a short circuit state, the power generation brake state is established. As a result, in a vehicle that can travel, the movement and vibration of the movable body are reduced.

  (5) If the movable body is fully closed and the ignition signal IG of the vehicle is on, the drive motor 190 is in the power generation brake state when the transmission is in the forward or backward state regardless of the moving speed of the vehicle. Control to connect both terminals of the drive motor 190 is performed. As a result, when the propulsive force of a vehicle having a device for driving the movable body by the drive motor 190 is in a transmittable state as forward or backward, the drive motor 190 is driven as a generator by the movement or vibration of the movable body. However, since both terminals of the drive motor 190 are connected in a short circuit state, the power generation brake state is set. As a result, in a vehicle that can travel, even if the vehicle is not actually traveling, the movement and vibration of the movable body are reduced, and safety is ensured.

  (6) In each of the above examples, a closed circuit or resistor in a short-circuited state is connected via connection switching means such as a relay or a semiconductor switching element connected to supply the drive power necessary for the drive motor 190. By connecting as a closed circuit via the power, the electric power generated in the winding of the drive motor 190 is consumed, and the drive motor 190 is brought into a power generation brake state or a short brake state. In this case, both terminals of the drive motor 190 are directly short-circuited, both terminals are connected to a common conductor (conductive part such as a body), and a closed circuit is connected by a resistor capable of consuming generated power. Etc. are possible. Thus, by using the drive motor 190 that drives the movable body and the connection switching means, it is possible to reliably realize a power generation brake that suppresses the movement and vibration of the movable body without providing a special mechanism.

Other embodiment (1):
In the above movable body driving device 100, the power generation brake of the drive motor 190 is controlled to operate when the movable body is fully closed, but when the movable body needs to be held in a fully open state during traveling, For example, in the case of an electric glass sunroof, the ignition signal IG is in an on state, and the power generation brake can be applied even when the movable body is fully open to suppress movement and vibration.

It is a circuit diagram which shows the structure of one Embodiment of this invention. It is a flowchart which shows operation | movement of one Embodiment of this invention. It is a circuit diagram which shows the connection state of the structure of one Embodiment of this invention. It is a circuit diagram which shows the connection state of the structure of one Embodiment of this invention. It is a circuit diagram which shows the connection state of the structure of one Embodiment of this invention. It is a circuit diagram which shows the connection state of the structure of one Embodiment of this invention.

Explanation of symbols

100 Movable body driving device 101 CPU
110 Open / Close Operation Switch 120 Fully Opening Detection Sensor 130 Fully Closed Detection Sensor 140-170 Relay 180 Electric / Manual Switch 190 Drive Motor

Claims (6)

A movable body drive device for driving a movable body provided in an opening of a vehicle so as to be opened and closed by an electric motor,
Driving means for driving the movable body at least in a closed state;
An electric motor for supplying a driving force to the driving means;
Detecting means for detecting whether the movable body is in a fully closed state;
Control means for performing control to supply electric power necessary for the electric motor,
The control means includes
When the movable body is in a fully closed state, the detection means detects that, and when the ignition signal of the vehicle is in an on state, both terminals of the motor are connected so that the motor is in a power generation brake state. Do control,
The movable body drive device characterized by the above-mentioned. A movable body drive device for driving a movable body provided in an opening of a vehicle so as to be opened and closed by an electric motor,
Driving means for driving the movable body at least in a closed state;
Detecting means for detecting whether the movable body is in a fully closed state;
Lock means for restraining the movable body driven in a fully closed state;
An electric motor for supplying a driving force to the driving means;
Control means for performing control to supply electric power necessary for the electric motor,
The control means includes
When the movable body is in a fully closed state, the detection means detects that, and when the ignition signal of the vehicle is in an on state, both terminals of the motor are connected so that the motor is in a power generation brake state. Do control,
The movable body drive device characterized by the above-mentioned. Further comprising speed detecting means for detecting the moving speed of the vehicle;
The control means includes
When the movable body is in the fully closed state, the detection means detects that the moving speed of the vehicle detected by the speed detection means is 0 even when the ignition signal of the vehicle is on. , Control to open both terminals of the motor,
When the movable body is in a fully closed state, the detection means detects that the vehicle ignition signal is on, and the vehicle moving speed detected by the speed detection means is other than zero. Control to connect both terminals of the motor so that the motor is in a power generation brake state,
The movable body drive device according to claim 1 or 2, characterized by the above. A propulsion force transmission mechanism for transmitting or blocking the propulsion force of the vehicle;
The control means includes
Even if the movable body is in a fully closed state and the ignition signal of the vehicle is in an on state, if the propulsive force transmission mechanism is in a cut-off state, control is performed to open both terminals of the motor. ,
When the movable body is in a fully closed state, a vehicle ignition signal is in an on state, and the propulsive force transmission mechanism is in a transmittable state, both ends of the motor are set so that the motor is in a power generation brake state. Control to connect children,
The movable body drive device according to claim 1 or 2, characterized by the above. The propulsive force transmission mechanism is a transmission;
The control means includes
If the movable body is fully closed and the ignition signal of the vehicle is on, regardless of the moving speed of the vehicle, the transmission is in the forward or reverse state,
Control to connect both terminals of the motor so that the motor is in a power generation brake state,
The movable body drive device according to claim 4. The control means connects both terminals of the motor by a closed circuit via connection switching means for supplying electric power for driving the motor when the motor is in a power generation brake state.
The movable body drive device according to any one of claims 1 to 5, wherein the movable body drive device is provided.

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