JP2013060053A - Mirror device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To return a mirror to an initial tilting position with high precision.SOLUTION: In the door mirror device for vehicle, when a shift range of an automatic transmission is changed to [R] range, an upper and a lower motors are driven to tilt the mirror from the initial tilting position to a changed tilting position. Meanwhile, when the shift range of the automatic transmission is changed to a position except the [R] range, the upper and the lower motors are driven to tilt the mirror from the changed tilting position toward the initial tilting position. In an ECU, an inertia operating amount after the stop of drive of the upper and the lower motors is estimated and the drive of the upper and the lower motors is stopped in a position prior to the initial operating position of the upper and the lower motors which is the initial tilting position of the mirror by the inertia operating amount of the upper and the lower motors. After that, the mirror is returned to the initial tilting position with high precision by inertia operating the upper and the lower motors by the inertia operation amount to tilt the mirror.

Description

  The present invention relates to a vehicle mirror device that tilts a mirror from an initial tilt position at a first opportunity and tilts the mirror toward the initial tilt position at a second opportunity.

  In the electric mirror device for a vehicle described in Patent Document 1 below, when the shift lever is moved to the shift position corresponding to the reverse range, the motor is driven and the mirror rotates from the return position to the rear wheel visual recognition position. Is done. Thereafter, when the shift lever is released from the shift position corresponding to the reverse range, the motor is driven to rotate the mirror from the rear wheel viewing position to the return position side.

  However, in this electric mirror device for a vehicle, even if the drive of the motor is stopped when the mirror is rotated from the rear wheel viewing position and reaches the return position, the motor is operated in an inertial manner so that the mirror is moved to the return position. May not be restored correctly.

JP 2004-243819 A

  In view of the above facts, an object of the present invention is to provide a vehicle mirror device that can return a mirror to an initial tilt position with high accuracy.

  The vehicle mirror device according to claim 1, wherein the mirror is provided in a vehicle, supports the mirror, and is driven at a first opportunity to tilt the mirror from the initial tilt position to the changed tilt position. The mirror surface angle of the tilting mechanism is changed, the tilting mechanism is driven at a second opportunity to tilt the mirror from the changed tilting position to the initial tilting position side, the tilting mechanism is controllable, and the tilting mechanism After the drive is stopped, an inertial operation amount or an inertial operation time for which the tilting mechanism is inertially operated is set, and the inertial operation amount or the inertial operation time is set before the mirror returns to the initial tilting position at the second opportunity. Control means for stopping the drive of the tilting mechanism.

  The vehicle mirror device according to claim 2 is the vehicle mirror device according to claim 1, wherein the control means is configured to obtain an inertial operation amount of the tilt mechanism based on an operation speed of the tilt mechanism or a second opportunity. Set inertia working time.

  The vehicle mirror device according to a third aspect is the vehicle mirror device according to the second aspect, wherein the control means is configured to obtain inertia of the tilt mechanism based on a fluctuation state of an operation speed of the tilt mechanism on a second occasion. Set the operating amount or inertial operating time.

  The vehicle mirror device according to claim 4 is the vehicle mirror device according to claim 2 or claim 3, wherein the control means detects the operation amount of the tilt mechanism by counting every predetermined amount. Means for detecting the operating speed of the tilting mechanism based on a time interval in which the detecting means counts the operating amount of the tilting mechanism at a second opportunity.

  In the vehicle mirror device according to the first aspect, the tilting mechanism supports the mirror, and the control means can control the tilting mechanism.

  At the first opportunity, the mirror mechanism angle is changed by driving the tilt mechanism to tilt the mirror from the initial tilt position to the changed tilt position. Further, on the second opportunity, the tilt mechanism is driven to tilt the mirror from the changed tilt position to the initial tilt position side.

  Here, the control means sets an inertial operation amount or an inertial operation time for which the tilting mechanism is inertially operated after stopping the driving of the tilting mechanism, and the mirror is returned to the initial tilting position at the second opportunity. The drive of the tilting mechanism is stopped just before the inertia operation amount or the inertia operation time.

  For this reason, the mirror can be returned to the initial tilt position with high accuracy by the inertia mechanism being operated for the inertia operation amount or the inertia operation time after the drive of the tilt mechanism is stopped.

  In the vehicle mirror device according to the second aspect, the control means sets the inertial operation amount or the inertial operation time of the tilting mechanism on the second opportunity based on the operating speed of the tilting mechanism. For this reason, the inertial operation amount or the inertial operation time of the tilting mechanism can be set with high accuracy.

  In the vehicle mirror device according to the third aspect, the control means sets the inertial operation amount or the inertial operation time of the tilting mechanism on the second occasion based on the fluctuation state of the operating speed of the tilting mechanism. For this reason, the inertial actuation amount or the inertial actuation time of the tilting mechanism can be set with higher accuracy.

  In the vehicle mirror device according to the fourth aspect, the detecting means of the control means counts and detects the operation amount of the tilting mechanism every predetermined amount. Further, on the second opportunity, the control means detects the operating speed of the tilting mechanism based on the time interval during which the detecting means counts the operating amount of the tilting mechanism. For this reason, the structure which detects the operating speed of a tilting mechanism can be made cheap.

It is a timing chart which shows the return control of the mirror in the vehicle door mirror apparatus which concerns on embodiment of this invention. It is operation | movement explanatory drawing which shows the return control of the mirror in the vehicle door mirror apparatus which concerns on embodiment of this invention. It is a graph which shows the position detection condition of the mirror in the vehicle door mirror apparatus which concerns on embodiment of this invention. It is the front view seen from the vehicles back which shows the door mirror device for vehicles concerning an embodiment of the invention. FIG. 5 is a cross-sectional view (a cross-sectional view taken along line 5-5 in FIG. 4) showing the main part of the vehicle door mirror device according to the embodiment of the present invention as seen from the inside in the vehicle left-right direction. BRIEF DESCRIPTION OF THE DRAWINGS (A)-(C) is a figure which shows the up-and-down sensor of the door mirror apparatus for vehicles which concerns on embodiment of this invention, (A) is a perspective view, (B) was seen from the side. It is sectional drawing, (C) is sectional drawing seen from the axial direction (CC sectional view taken on the line CC of (B)). It is a timing chart which shows the 1st example of the return control of the mirror in the vehicle door mirror apparatus which concerns on embodiment of this invention. It is a timing chart which shows the 2nd example of the return control of the mirror in the vehicle door mirror apparatus which concerns on embodiment of this invention.

  FIG. 4 is a front view of a vehicle door mirror device 10 according to an embodiment to which the vehicle mirror device of the present invention is applied, and FIG. 5 shows a vehicle door mirror device. 10 is shown in a cross-sectional view (cross-sectional view taken along line 5-5 in FIG. 4) viewed from the inside in the left-right direction of the vehicle (left side of the vehicle). In the drawings, the front side of the vehicle is indicated by an arrow FR, the vehicle laterally outward direction (right side of the vehicle) is indicated by an arrow WO, and the upper side is indicated by an arrow UP.

  The vehicle door mirror device 10 according to the present embodiment is installed outside the front end of the middle portion in the vertical direction of the door (front door) of the vehicle.

  As shown in FIG. 4, the vehicle door mirror device 10 includes a substantially rectangular parallelepiped container-like visor 12 as an outer peripheral member, and the vehicle laterally inner portion of the visor 12 is supported by a door (vehicle body side). The vehicle door mirror device 10 is installed on the door. Moreover, the inside of the visor 12 is opened to the vehicle rear side.

  A substantially rectangular flat plate-like mirror 14 is provided in the visor 12, and the mirror 14 is disposed in an opening portion of the visor 12. A mirror main body 16 (mirror body) is provided at the vehicle rear side portion of the mirror 14, and the mirror main body 16 has a mirror film 16A on the vehicle rear side surface of the reflective film. Moreover, the vehicle front side and outer periphery of the mirror main body 16 are covered with a mirror holder 18 (mirror holder outer).

  In the visor 12, an electric position adjusting unit 20 (mirror surface angle adjusting device) as a tilting mechanism shown in FIG. 5 is provided.

  A substantially hemispherical container-like case 22 is provided at the vehicle front side portion of the position adjusting unit 20, and the inside of the case 22 is opened to the vehicle rear side. The case 22 is supported by the visor 12, whereby the position adjustment unit 20 is supported by the visor 12.

  A tilting body 24 (mirror holder inner) is provided on the rear side portion of the position adjustment unit 20, and the tilting body 24 is held by the case 22 so as to be tiltable (swingable). The tilting body 24 is provided with a substantially cylindrical slide cylinder 24A. The diameter of the slide cylinder 24A is gradually reduced toward the front side of the vehicle so as to be slidable with respect to the peripheral wall of the case 22. ing. A substantially disc-shaped mounting plate 24B is integrally provided at the vehicle rear side end of the sliding cylinder 24A, and the mirror holder 18 of the mirror 14 is detachably mounted on the vehicle rear side of the mounting plate 24B. Yes. Thereby, the mirror 14 can be tilted with respect to the case 22 integrally with the tilting body 24 around the center of gravity (center position).

  A vertical motor 26 and a left / right motor (not shown) as tilting means (motors) are fixed in the case 22. Each of the vertical motor 26 and the left / right motors has a rod-like shape as a moving member (position adjustment rod). The upper and lower rods 28 and the left and right rods (not shown) are mechanically connected. The upper and lower rods 28 and the left and right rods are held in the case 22 so as to be slidable (movable) in the longitudinal direction (axial direction) of the vehicle. The front and rear ends of the left and right rods (the rear end of the vehicle) are located outside of the center of gravity of the mirror 14 in the lateral direction of the vehicle (inside the lateral direction of the vehicle). In this case, the mounting plate 24B is rotatably held.

  The upper and lower motors 26 and the left and right motors are electrically connected to an ECU 30 (control ECU, mirror ECU) as a control device that constitutes a control means in the visor 12 or on the vehicle body side. The adjustment operation device 32 and a battery 34 as a power source are electrically connected. When the adjustment operation device 32 is operated by a vehicle occupant (especially a driver), the vertical motor 26 and the left and right motors are supplied with current from the battery 34 and driven (rotated) under the control of the ECU 30, thereby The rod 28 is slid in the vehicle front-rear direction, and the tilting body 24 and the mirror 14 are tilted in the vertical direction with respect to the case 22, and the left and right rods are slid in the vehicle front-rear direction, so Tilt in the vehicle left-right direction. Thereby, the tilt position of the mirror 14 is adjusted, and the mirror surface 16A angle (the direction in which the mirror surface 16A is directed) of the mirror 14 is adjusted. The operating amount (rotation number) of the upper and lower motors 26 is proportional to the sliding distance of the upper and lower rods 28, and the operating amount (rotation number) of the left and right motors is proportional to the sliding distance of the left and right rods.

  The case 22 is provided with an up / down sensor 36 and a left / right sensor (not shown) as detection means (sensor, position sensor) constituting the control means, and the up / down sensor 36 and the left / right sensor are electrically connected to the ECU 30, respectively. It is connected.

  As shown in FIGS. 6A to 6C, the vertical sensor 36 and the horizontal sensor are each provided with a substantially rectangular box-shaped housing 38, and the housing 38 is fixed to the outside of the bottom wall of the case 22. As a result, the vertical sensor 36 and the horizontal sensor are fixed to the case 22. The housing 38 is provided with a long and substantially cylindrical detection rod 40 as a detection member so as to be slidable in the vehicle front-rear direction (axial direction). The detection rod 40 protrudes from the housing 38 toward the vehicle rear side. At the same time, it penetrates the bottom wall of the case 22 and is inserted into the case 22. The detection rod 40 of the vertical sensor 36 is disposed coaxially with the vertical rod 28 on the vehicle front side of the vertical rod 28, and the detection rod 40 of the left and right sensor is coaxial with the left and right rods on the vehicle front side of the left and right rods. Has been placed.

  A compression coil spring 42 as an urging means is provided in the housing 38, and the compression coil spring 42 urges the detection rod 40 toward the vehicle rear side. Therefore, the front end (vehicle rear side end) of the detection rod 40 of the vertical sensor 36 is brought into contact with the base end (vehicle front side end) of the vertical rod 28 by the urging force of the compression coil spring 42 and the detection rod of the left and right sensor. The front end (rear end of the vehicle) 40 is in contact with the base end (front end of the vehicle) of the left and right rods by the urging force of the compression coil spring 42, and the vertical sensor 36 and the detection rod 40 of the left and right sensors are always up and down. The rod 28 and the left and right rods are integrally slidable in the vehicle front-rear direction.

  A long plate-like passage portion 44 is integrally provided in the base end side portion (vehicle front portion) of the detection rod 40, and the passage portion 44 is disposed along the axial direction of the detection rod 40, The detection rod 40 and the detection rod 40 can be slid in the vehicle front-rear direction. A plurality of narrow rectangular passage holes 46 are formed in the passage portion 44. The plurality of passage holes 46 are arranged along the radial direction of the detection rod 40 and are small in the axial direction of the detection rod 40. They are arranged at regular intervals. The passage hole 46 penetrates the passage portion 44 in the thickness direction, and portions other than the passage hole 46 of the passage portion 44 are shielded by the light shielding portion 44A, and the passage hole 46 of the passage portion 44 is , The light is allowed to pass.

  A photo interrupter 48 having a U-shaped cross section as a sensor portion is fixed in the housing 38, and a passage portion 44 of the detection rod 40 is slidably disposed in the photo interrupter 48. A light emitting unit 48A is provided on one side of the photo interrupter 48, and a light receiving unit 48B is provided on the other side of the photo interrupter 48. The light emitting unit 48A emits light toward the light receiving unit 48B. While being able to emit light, the light receiving unit 48B is capable of receiving light emitted by the light emitting unit 48A. When the light shielding part 44A of the passage part 44 is disposed between the light emitting part 48A and the light receiving part 48B, the light emitted from the light emitting part 48A is shielded by the light shielding part 44A and the light receiving part 48B does not receive light. When the passage hole 46 of the passage portion 44 is disposed between the light emitting portion 48A and the light receiving portion 48B, the light emitted from the light emitting portion 48A passes through the passage hole 46 and is received by the light receiving portion 48B.

  When the detection rod 40 is slid to the rear side of the vehicle, the vertical sensor 36 and the left / right sensor pass through the passage hole 46 of the passage portion 44 between the light emitting portion 48A and the light receiving portion 48B, respectively. Every time the light receiving unit 48B receives the emitted light (each time the detection rod 40 is slid by a predetermined slide amount (the arrangement interval of the passage holes 46)), the count is increased (incremented stepwise). On the other hand, when the detection rod 40 is slid to the front side of the vehicle, the vertical sensor 36 and the left / right sensor pass through the passage hole 46 of the passage portion 44 between the light emitting portion 48A and the light receiving portion 48B, respectively, and the light emitting portion 48A. Each time the light receiving unit 48B receives the light emitted by (i.e., every time the detection rod 40 is slid by a predetermined slide amount), the count is decreased (stepwise down). For this reason, the up / down sensor 36 and the left / right sensor each have a count that is minimized (for example, 0) when the detection rod 40 is disposed at the position of the vehicle front end, and the detection rod 40 is positioned at the vehicle rear end. The count is maximized when placed in

  As shown in FIG. 5, an automatic transmission 50 (transmission) of the vehicle is electrically connected to the ECU 30, and a shift lever device 52 as a vehicle operation device is mechanically connected to the automatic transmission 50. Or it is electrically connected. When the shift lever device 52 is operated by a vehicle occupant (driver), the shift range (shift position) of the automatic transmission 50 is, for example, “P” range (parking range), “R” range (reverse range). , “N” range (neutral range), “D” range (drive range), etc. Further, the ECU 30 is electrically connected to an air conditioner 54 (air conditioner) as a high current load device of the vehicle. The air conditioner 54 is operated by being supplied with current from the battery 34 under the control of the ECU 30. Is done.

  Next, the operation of the present embodiment will be described.

  In the vehicle door mirror device 10 configured as described above, when the adjustment operation device 32 is operated, the position adjustment unit 20 is operated under the control of the ECU 30, and the vertical motor 26 and the left and right motors are supplied with current from the battery 34. As a result, the vertical rod 28 and the horizontal rod are slid in the vehicle longitudinal direction. For this reason, the tilting body 24 and the mirror 14 are tilted with respect to the case 22 in the vertical direction and the vehicle left-right direction, so that the tilt position (mirror surface 16A angle) of the mirror 14 is adjusted, and the mirror 14 of the occupant (driver) The viewing range by is adjusted.

  Further, when the vertical rod 28 and the left and right rods are slid in the vehicle longitudinal direction, the detection rod 40 is slid in the vehicle longitudinal direction integrally with the vertical rod 28 or the left and right rods in the vertical sensor 36 and the horizontal sensor, respectively. Thus, every time the light receiving portion 48B receives the light emitted from the light emitting portion 48A through the passage hole 46 of the passage portion 44 of the detection rod 40 between the light emitting portion 48A and the light receiving portion 48B of the photo interrupter 48 (detection rod). Every time 40 is slid a predetermined slide amount), the count is increased or decreased. Thus, when the tilt position of the mirror 14 is adjusted by the operation of the adjustment operation device 32, the tilt position of the mirror 14 is detected by the vertical sensor 36 and the left and right sensors, and the ECU 30 determines the tilt position of the mirror 14. The initial tilt position (target return position, origin) is stored (set, learned) by the count (set count, initial value) in the vertical sensor 36 and the left and right sensors.

  When the shift lever device 52 is operated and the shift range of the automatic transmission 50 is changed to the “R” range (first opportunity), the position adjustment unit 20 is operated under the control of the ECU 30 to move up and down. When the motor 26 is supplied with current from the battery 34 and is driven in the forward direction, the upper and lower rods 28 are slid toward the rear side of the vehicle. Therefore, when the tilting body 24 and the mirror 14 are tilted downward (change direction) with respect to the case 22, the tilt position of the mirror 14 is automatically lowered from the initial tilt position to the change tilt position (reverse stop position). The direction in which the mirror surface 16A is directed is changed obliquely downward to the rear of the vehicle. Thus, the occupant (driver) can visually recognize the rear wheel of the vehicle and its surroundings by the mirror 14.

  Thereafter, when the shift lever device 52 is operated and the shift range of the automatic transmission 50 is changed to a range other than the “R” range (for example, the “P” range) (second opportunity), the ECU 30 controls the When the position adjustment unit 20 is operated and the vertical motor 26 is supplied with current from the battery 34 and is driven in the reverse direction, the vertical rod 28 is slid to the vehicle front side. For this reason, when the tilting body 24 and the mirror 14 are tilted upward (return direction) with respect to the case 22, the tilt position of the mirror 14 is automatically changed upward from the changed tilt position toward the initial tilt position. .

  By the way, as shown in FIG. 3, when the shift range of the automatic transmission 50 is changed to the “R” range, the vertical motor 26 is operated in a positive direction by a predetermined operating amount (predetermined amount), and the vertical rod 28 is moved to the vehicle. When the detection rod 40 of the vertical sensor 36 is slid by a predetermined slide amount to the rear side of the vehicle, the count of the vertical sensor 36 is increased. On the other hand, when the shift range of the automatic transmission 50 is changed to a range other than the “R” range, the vertical motor 26 is operated in a reverse direction by a predetermined operation amount, and the vertical rod 28 is slid to the front side of the vehicle by a predetermined slide amount. Thus, each time the detection rod 40 of the vertical sensor 36 is slid by a predetermined amount toward the vehicle front side, the count of the vertical sensor 36 is decreased.

  Here, as shown in FIGS. 1 and 2, when the shift range of the automatic transmission 50 is changed from the “R” range to other than the “R” range, the ECU 30 decreases the count of the up / down sensor 36. At each time, after predicting the time interval (predicted time interval, predicted lap time) at which the count of the upper and lower sensors 36 is decreased, the time interval (measurement time interval, measured lap time) at which the count of the upper and lower sensors 36 is decreased by the timer measure.

  That is, the ECU 30 predicts the predicted time interval after this time by predicting the fluctuation state of the operating speed of the upper and lower motors 26 based on the measurement time interval before the previous time.

  For example, if the measurement time interval before the previous time is constant, the ECU 30 sets the measurement time interval before the previous time as the predicted time interval after this time. Further, if the previous predicted time interval is different from the measured time interval even though the previous measured time interval is constant, the previous measured time interval is set to the predicted time interval after this time. In addition, when there is a periodic variation in the measurement time interval before the previous time, the predicted time interval after this time is set to a time interval corresponding to the periodic variation. In particular, when there is a predetermined periodic variation in the measurement time interval before the previous time, the predicted time interval after this time is set to a time interval corresponding to the predetermined periodic variation.

  Thereby, the ECU 30 predicts the predicted time interval when the count of the vertical sensor 36 is reduced to the count that is the initial tilt position when the drive of the vertical motor 26 is continued, By dividing the predetermined operating amount (the operating amount of the vertical motor 26 every time the count of the vertical sensor 36 is decreased) by the predicted time interval, the operating speed of the vertical motor 26 (the vertical rod 28 and detection) in the predicted time interval. The slide speed of the rod 40 and the tilt speed of the mirror 14) are predicted (calculated). Furthermore, the ECU 30 supplies the current from the battery 34 based on the data stored in advance based on the operating speed of the vertical motor 26 (which may include the current supply status from the battery 34 to the vertical motor 26, etc.). The inertial actuation amount (the inertial slide amount by which the vertical rod 28 and the detection rod 40 are inertially slid, the mirror 14 is inertially tilted). Predicted (calculated, set).

  As described above, the ECU 30 determines the position of the vertical motor 26 higher than the initial operating position of the vertical motor 26 (the initial slide position of the vertical rod 28 and the detection rod 40, the initial tilt position of the mirror 14) where the mirror 14 tilt position is the initial tilt position. The operating position of the vertical motor 26 (sliding position of the vertical rod 28 and detection rod 40, tilting of the mirror 14) is moved forward by the inertial operating amount (inertial sliding amount of the vertical rod 28 and detection rod 40, inertial tilting amount of the mirror 14). By setting (calculating) the time when the position) arrives as the drive stop time (time lag) of the vertical motor 26, the current supply from the battery 34 to the vertical motor 26 is stopped during the drive stop time of the vertical motor 26, The drive of the vertical motor 26 is stopped. For this reason, after that, the vertical motor 26 is inertially operated by the amount of inertial operation and stopped, so that the mirror 14 is tilted by the amount of inertial tilt by the sliding of the vertical rod 28 by the amount of inertial slide, and the mirror 14 is tilted. The position is returned to the initial tilt position. The ECU 30 can confirm that the tilt position of the mirror 14 has been returned to the initial tilt position based on the count of the vertical sensor 36.

  Thus, when the shift range of the automatic transmission 50 is changed from the “R” range to a range other than the “R” range, the ECU 30 drives the upper and lower motors 26 during the set drive stop time of the upper and lower motors 26. By stopping, the vertical motor 26 is then inertially operated by the inertial operation amount, and the mirror 14 is tilted by the inertial tilt amount. Thereby, the tilt position of the mirror 14 can be returned to the initial tilt position with high accuracy.

  Further, the ECU 30 sets the inertial operation amount of the upper and lower motors 26 based on the operating speed of the upper and lower motors 26 (the operating speed of the position adjusting unit 20). Therefore, the inertial operation amount of the vertical motor 26 can be set with high accuracy, the drive stop time of the vertical motor 26 can be set with high accuracy, and the tilt position of the mirror 14 can be returned to the initial tilt position with higher accuracy. it can.

  Further, the ECU 30 sets the inertial operation amount of the upper and lower motors 26 by predicting the fluctuation state of the operating speed of the upper and lower motors 26 based on the measurement time interval before the previous time and predicting the predicted time interval after this time. . For this reason, the inertial operation amount of the upper and lower motors 26 can be made to correspond to the state of the battery 34 and the operation state of the position adjusting unit 20 (environmental conditions such as the environmental temperature and the snow adhesion state). The operation amount can be set with higher accuracy, the drive stop time of the vertical motor 26 can be set with higher accuracy, and the tilt position of the mirror 14 can be returned to the initial tilt position with higher accuracy.

  Further, the vertical sensor 36 counts and detects the sliding amount of the vertical rod 28 (detection rod 40) for each predetermined sliding amount, thereby counting and detecting the operating amount of the vertical motor 26 for each predetermined operating amount. Further, the ECU 30 detects the operating speed of the upper and lower motors 26 based on the time interval for counting the operating amount of the upper and lower motors 26. Moreover, the vertical sensor 36 is not provided with a permanent magnet and a Hall element, but is provided with a photo interrupter 48. Thereby, the structure which detects the operating speed of the up-and-down motor 26 can be made cheap.

  In the present embodiment, the ECU 30 sets the inertial operation amount (inertia operation distance, inertial operation angle) after the drive of the vertical motor 26 is stopped, and then the vertical motor whose tilt position of the mirror 14 is the initial tilt position. The time for the operating position of the upper and lower motors 26 to reach a position before the initial operating position 26 by the inertial operating amount of the upper and lower motors 26 was set as the drive stop time of the upper and lower motors 26. However, if the ECU 30 sets the inertial operation time after the drive of the vertical motor 26 is stopped and continues to drive the vertical motor 26, the vertical motor is longer than the time for the tilt position of the mirror 14 to reach the initial tilt position. The time before the inertial operation time of 26 may be set as the drive stop time of the vertical motor 26.

  Further, in the present embodiment, the vertical sensor 36 detects the slide of the vertical rod 28 to detect the operation of the vertical motor 26 and the tilt of the mirror 14. However, the vertical sensor 36 may detect the operation of the vertical motor 26 to detect the slide of the vertical rod 28 and the tilt of the mirror 14, and the vertical sensor 36 may detect the tilt of the mirror 14 and the tilting body 24. The operation of the vertical motor 26 and the sliding of the vertical rod 28 may be detected.

  In the present embodiment, the mirror 14 is automatically tilted when the shift range of the automatic transmission 50 is changed to the “R” range (first opportunity). However, the mirror 14 may be automatically tilted at another first opportunity.

  Further, in the present embodiment, the mirror 14 is tilted in the vertical direction by the vertical rod 28 on the first occasion. However, at the first opportunity, the mirror 14 may be tilted in at least one of the vertical direction and the vehicle horizontal direction by at least one of the vertical rod 28 and the horizontal rod.

  For example, in the vehicle door mirror device 10 on the side where the traveling direction of the vehicle is changed (the side on which the direction indicator is operated) when the direction indicator (operation device) of the vehicle is operated (first opportunity). The mirror 14 may be tilted in the left-right direction of the vehicle with the left and right rods and directed outward in the vehicle width direction. In this case, when the operation of the direction indicator of the vehicle is released (second opportunity), the mirror 14 is tilted to the initial tilt position.

  In the present embodiment, the present invention is applied to the vehicle door mirror device 10. However, the present invention may be applied to other outside or inside mirror devices.

(First example)
FIG. 7 is a timing chart showing a first example of return control of the mirror 14 in the vehicle door mirror device 10 according to the present embodiment.

  As shown in FIG. 7, in the first example, when the shift range of the automatic transmission 50 is changed from the “R” range to a position other than the “R” range, the mirror 14 is moved to the changed tilt position by the operation of the position adjustment unit 20. In the initial stage of tilting from the (reverse position) to the initial tilt position (origin position) side, the air conditioner 54 of the vehicle is activated (turned on) by supplying current from the battery 34 temporarily (or continuously). The voltage value of the battery 34 is temporarily increased from the initial voltage value (rated voltage value) and then gradually increased, and finally periodically varies to the initial voltage value. Recovery (convergence). Therefore, the operating speed (operating rotational speed) of the vertical motor 26 (mirror drive motor) is slightly delayed (with a slight time lag) from the voltage value of the battery 34 after the operation of the air conditioner 54. In synchronism, after a large decrease from the initial operating speed, it is gradually increased and finally is periodically varied in the vicinity of the initial operating speed.

  As a result, the measurement time interval t detected by the up / down sensor 36 (mirror surface sensor) is gradually increased from the initial t0 to t1 after the operation of the air conditioner 54, and then gradually decreased. t2 to t5, and finally it is periodically changed in the vicinity of the original t0 to be t6, t0 ′, t6 ′, t0 ″, t6 ″ (t0, t0 ′, t0 ″ are almost Equal, t6, t6 ′, t6 ″ are substantially equal).

  For this reason, if the drive of the vertical motor 26 is continued, the ECU 30 periodically changes the predicted time interval when the count of the vertical sensor 36 is reduced to the count where the tilt position of the mirror 14 is the initial tilt position. Based on the prediction based on t6 ″, the operating speed of the vertical motor 26 in the predicted time interval t6 ″ is predicted.

(Second example)
FIG. 8 is a timing chart showing a second example of the return control of the mirror 14 in the vehicle door mirror device 10 according to the present embodiment.

  As shown in FIG. 8, in the second example, when the shift range of the automatic transmission 50 is changed from the “R” range to a position other than the “R” range, the mirror 14 is changed to the tilt position by the operation of the position adjustment unit 20. When the air conditioner 54 of the vehicle is continuously supplied with current from the battery 34 and is turned on (turned on) in the latter period when it is tilted from the (reverse position) to the initial tilt position (origin position) side, the battery The voltage value of 34 is slightly increased after being temporarily greatly reduced from the initial voltage value (rated voltage value). Therefore, the operating speed (operating rotational speed) of the vertical motor 26 (mirror drive motor) is slightly delayed (with a slight time lag) from the voltage value of the battery 34 after the operation of the air conditioner 54. In synchronism, it is increased slightly after being temporarily greatly reduced from the initial operating speed.

  As a result, the measurement time interval t detected by the vertical sensor 36 (mirror sensor) is substantially equal to t0 to t7 before the operation of the air conditioner 54, but temporarily from t7 after the operation of the air conditioner 54. After being greatly lengthened to t8, it is slightly shortened to t9 to t10 (t9 and t10 are substantially equal).

  For this reason, if the drive of the vertical motor 26 is continued, the ECU 30 sets the predicted time interval when the count of the vertical sensor 36 is decreased to the count that is the initial tilt position to t9 of the previous measurement. By predicting that they are substantially equal to t10, the operating speed of the upper and lower motors 26 in the predicted time interval t10 is predicted.

10. Vehicle door mirror device (vehicle mirror device)
14 mirror 16A mirror surface 20 position adjustment unit (tilting mechanism)
30 ECU (control means)
36 Vertical sensor (detection means)

Claims (4)

A mirror provided in the vehicle;
The mirror is supported and driven at the first opportunity to tilt the mirror from the initial tilt position to the changed tilt position, thereby changing the mirror surface angle of the mirror and at the second opportunity to drive the mirror. A tilt mechanism that tilts from the tilt position to the initial tilt position side,
The tilting mechanism is made controllable, and after the drive of the tilting mechanism is stopped, an inertial operation amount or an inertial operation time for which the tilting mechanism is inertially operated is set, and at the second opportunity, the mirror is initially tilted. Control means for stopping the drive of the tilting mechanism by an inertial actuation amount or an inertial actuation time before returning to the position;
Mirror device for vehicles provided with.   2. The vehicle mirror device according to claim 1, wherein the control unit sets an inertial operation amount or an inertial operation time of the tilting mechanism based on an operating speed of the tilting mechanism at a second opportunity.   3. The vehicle mirror device according to claim 2, wherein the control unit sets an inertial operation amount or an inertial operation time of the tilt mechanism based on a fluctuation state of an operation speed of the tilt mechanism at a second opportunity.   The control means includes detection means for counting and detecting the operation amount of the tilt mechanism for each predetermined amount, and based on a time interval at which the detection means counts the operation amount of the tilt mechanism at a second opportunity. The vehicle mirror device according to claim 2 or 3, wherein an operation speed of the tilt mechanism is detected.

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