JP4029875B2 - Vehicle control device - Google Patents

Description

  The present invention relates to a vehicle control device used for a vehicle power transmission device and the like.

  A transmission having a synchronization device is known as a stepped transmission for a vehicle, and an example thereof is described in Patent Document 1. This Patent Document 1 describes a transmission in which a shift is executed by a manual operation, and this transmission has an input shaft, an output shaft, and a counter shaft. A plurality of transmission gear trains and transmission gear trains are provided on the path from the input shaft to the output shaft. The transmission gear train is always meshed, and the transmission gear train is configured to be able to transmit power by meshing of the meshing means. That is, a plurality of meshing means corresponding to a plurality of transmission gear trains are provided, and the meshing means includes a clutch gear as a rotating body on each transmission gear train side, that is, a counter shaft side, and a hub integrated with the output shaft. And a sleeve meshed with inner peripheral teeth. Further, a pulse motor is connected to the counter shaft.

When the gear stage signal is switched to a forward gear other than neutral and reverse, the gear ratio at the current gear is calculated from a predetermined map, and the correction counter is calculated based on the gear ratio and the output shaft speed. The shaft rotation speed is calculated and stored in a predetermined area. After that, when changing the gear stage by a speed change operation, when the counter shaft has a rotation speed equal to or lower than the corrected counter shaft rotation speed, the counter shaft is increased by the pulse motor so that the counter shaft exceeds the corrected counter shaft rotation speed. In the case of the rotational speed, the pulse motor is driven so as to reduce the countershaft rotational speed. In this way, when the rotational speed of the clutch gear constituting the meshing means is brought close to the rotational speed of the sleeve, the sleeve can be smoothly meshed with the clutch gear. Note that a synchronization device used in a transmission or the like is also described in Patent Documents 2 to 4.
Japanese Utility Model Publication No. 5-22864 JP-A-5-263835 JP-A-5-106643 JP 2000-295709 A

  However, in the meshing means described in the above-mentioned Patent Document 1, only the rotational speed of the clutch gear and the rotational speed of the sleeve are made to coincide with each other. In some cases, the phase of the peripheral teeth and the phase of the clutch gear do not coincide with each other. In this case, the meshing means may not mesh smoothly, and a shock may occur.

  The present invention has been made against the background described above, and provides a vehicle control device capable of matching the phases of the teeth of the first engaging member and the teeth of the second engaging member. It is an object.

  In order to achieve the above object, the invention of claim 1 includes a first engagement member having teeth configured by alternately arranging recesses and protrusions in the circumferential direction, and recesses and protrusions in the circumferential direction. A second engagement member having teeth configured by alternately arranging convex portions and arranged coaxially with the first engagement member, and the first engagement member are rotated. By moving the electric motor and either the first engagement member or the second engagement member in the axial direction, the teeth of the first engagement member and the teeth of the second engagement member And a first engagement member for engaging the teeth of the first engagement member with the teeth of the second engagement member. When either the member or the second engagement member is moved in the axial direction, the first engagement member or From the time when the movement of the second engaging member in the axial direction is started to the time when the convex portion of the first engaging member and the convex portion of the second engaging member come into contact with each other. A movement amount detecting means for obtaining a movement amount in the axial direction of the engagement member or the second engagement member, and a circumferential direction between the teeth of the first engagement member and the teeth of the second engagement member Based on the phase difference obtained by the phase difference calculating means, the phase difference calculating means for obtaining the phase difference based on the amount of movement in the axial direction and the driving state of the motor for rotating the first engagement member. And a phase adjusting means for matching the phases of the teeth of the first engagement member and the teeth of the second engagement member in the circumferential direction by controlling the teeth. is there.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the phase adjusting means sets the rotational speed of the motor when the phase difference is large to be higher than the rotational speed of the motor when the phase difference is small. It is characterized by including the means to do.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the phase adjusting means is configured such that the position of the teeth of the first engagement member and the teeth of the second engagement member in the circumferential direction. If the phase difference is large, the rotational speed of the electric motor is controlled to a high rotational speed, and then the circumferential phase difference between the teeth of the first engagement member and the teeth of the second engagement member is small. In such a case, a means for controlling the rotational speed of the electric motor to a low rotational speed is included.

  According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the end in the axial direction of the convex portion of the first engaging member is between a plane perpendicular to the axial line. A single first inclined surface having a predetermined inclination angle is formed, and the inclination angle between the convex portion of the second engagement member and the plane perpendicular to the axis is set at the end in the axial direction. A single second inclined surface is formed, and the first inclined surface and the second inclined surface are parallel to each other.

  According to the first aspect of the present invention, the rotation speeds of the first engagement member and the second engagement member are matched, and the teeth of the first engagement member and the teeth of the second engagement member are When one of the first engagement member and the second engagement member is moved in the axial direction from the released state, the teeth of the first engagement member and the second engagement When there is a circumferential phase difference between the teeth of the member, the convex portion of the first engaging member comes into contact with the convex portion of the second engaging member. Here, the protrusion of the first engagement member and the protrusion of the second engagement member are in contact with each other from the time when the movement of either the first engagement member or the second engagement member is started. In the meantime, the amount of movement in the axial direction of either the first engaging member or the second engaging member is determined.

  A phase difference in the circumferential direction between the teeth of the first engagement member and the teeth of the second engagement member is obtained based on the movement amount in the axial direction. And by controlling the driving state of the electric motor that rotates the first engaging member based on the phase difference in the circumferential direction between the teeth of the first engaging member and the teeth of the second engaging member, The phases of the teeth of the first engagement member and the teeth of the second engagement member coincide with each other in the circumferential direction, and either the first engagement member or the second engagement member is set in the axial direction. When further moved, the teeth of the first engaging member and the teeth of the second engaging member can be smoothly and reliably engaged, and the shock can be suppressed.

  According to the invention of claim 2, in addition to obtaining the same effect as that of the invention of claim 1, in the case where the phase difference between the teeth of the first engagement member and the teeth of the second engagement member is large By starting the phase adjustment between the teeth of the first engagement member and the teeth of the second engagement member by making the rotation number of the motor higher than the rotation number of the motor when the phase difference is small, It is possible to shorten the time until the phases of the teeth of the first engaging member and the teeth of the second engaging member coincide.

  According to the invention of claim 3, in addition to the same effect as that of the invention of claim 1 or 2, the tooth of the first engagement member and the second engagement can be obtained as in the initial stage of phase difference adjustment. When the phase difference in the circumferential direction with the teeth of the member is large, the electric motor is driven at a high rotational speed. Therefore, after starting the phase adjustment in the circumferential direction between the teeth of the first engagement member and the teeth of the second engagement member, the teeth of the first engagement member and the teeth of the second engagement member It is possible to further shorten the time until the phases in the circumferential direction coincide with each other. Further, when the electric motor is driven at a high rotational speed and the circumferential phase difference between the teeth of the first engaging member and the teeth of the second engaging member becomes small, the electric motor is driven at a low rotational speed. Driven. Therefore, when the phase of the teeth of the first engaging member coincides with the phase of the teeth of the second engaging member and the electric motor is stopped, it is possible to suppress the occurrence of shock. Thus, it is possible to achieve both the reduction of the time required for the phase adjustment and the suppression of the shock accompanying the stop of the electric motor.

  According to the invention of claim 4, in addition to obtaining the same effect as that of any of the inventions of claims 1 to 3, either the first engagement member or the second engagement member is moved in the axial direction. If it moves, the 1st inclined surface formed in the 1st engaging member and the 2nd inclined surface formed in the 2nd engaging member will contact. Further, when the first engaging member or the second engaging member is moved in the axial direction, the first engaging member or the second engaging member remains in contact with the first inclined surface and the second inclined surface. Either one of the engaging members moves in the axial direction and the circumferential direction. Here, due to the contact between the first inclined surface and the second inclined surface, the rotation direction of the first engaging member is limited to one direction, and the phase difference with respect to the movement amount in the axial direction is uniquely determined. Therefore, phase adjustment and phase synchronization in the circumferential direction between the teeth of the first engagement member and the teeth of the second engagement member, and further, the teeth of the first engagement member and the second engagement member It is possible to control the engagement with the teeth with higher accuracy.

  Next, the present invention will be specifically described with reference to the drawings. FIG. 2 shows an example of a vehicle that can use the present invention. The vehicle Ve shown in FIG. 2 is a schematic configuration diagram of a hybrid vehicle (hereinafter abbreviated as “vehicle”) Ve of an FR type (front engine / rear drive; engine front and rear wheel drive). In FIG. 2, a vehicle Ve has an engine 1 as a first driving force source and a motor / generator 2 as a second driving force source. The engine 1 is a power unit that burns fuel and converts its thermal energy into kinetic energy. As the engine 1, an internal combustion engine, specifically, a gasoline engine, a diesel engine, an LPG engine, or the like can be used. An input shaft 3 is connected to the engine 1.

  Also, a casing 6 that houses the motor / generator 2, the motor / generator 4, and the power distribution device 5 is provided. As the power distribution device 5, a single pinion type planetary gear mechanism is shown. That is, the power distribution device 5 includes a sun gear 8 formed on the hollow shaft 7, a ring gear 9 disposed coaxially with the sun gear 8, and a carrier 11 that holds the pinion gear 10 that meshes with the sun gear 8 and the ring gear 9. is doing. The input shaft 3 and the carrier 11 are coupled so as to rotate integrally. The ring gear 9 is formed on the inner periphery of the annular member 50, and external teeth 12 are provided on the outer periphery of the annular member 50. The annular member 50 is configured to be rotatable about the axis A1, and the movement in the axial direction is restricted. Moreover, the input shaft 3 is arrange | positioned in the hollow shaft 7, and the input shaft 3 and the hollow shaft 7 are relatively rotatable. The input shaft 3, the hollow shaft 7, and the motor / generator 4 rotate about the axis A1.

  On the other hand, the motor / generator 4 has a stator 13 and a rotor 14. The stator 13 is fixed to the casing 6. Further, the motor / generator 2 has a stator 15 and a rotor 16. The stator 15 is fixed to the casing 6. Further, an output shaft 26 that rotates integrally with the annular member 50 is provided, and the output shaft 26 and the rotor 16 of the motor / generator 2 are connected to each other. Further, wheels 28 are connected to the output shaft 26 with a differential 27 interposed therebetween. In addition, a power storage device 17 is provided that can exchange electric power with the motor / generators 2 and 4 via the inverter 44.

  By the way, the annular member 51 is attached to the casing 6 so as not to be rotatable and movable in the axial direction (fixed), and external teeth 18 are formed on the outer periphery of the annular member 51. Yes. On the other hand, a hub 19 that rotates integrally with the hollow shaft 7 is provided. The external teeth 18 are formed in a circumferential direction (annular) around the axis A1. The hub 19 is formed in an annular shape, and external teeth 20 are formed on the outer periphery of the hub 19 over the entire circumferential direction. In this embodiment, the circumferential direction (rotation direction) means a direction along a virtual circle (not shown) centered on the axis A <b> 1 of the motor / generator 4.

  As shown in FIG. 3, the external teeth 20 are formed by alternately arranging convex portions 29 and concave portions (tooth gaps) 30 in the circumferential direction. Further, as shown in FIG. 4, the external teeth 18 are also formed by alternately arranging convex portions 31 and concave portions 32 in the circumferential direction. Further, as shown in FIG. 5, the external teeth 12 are formed by alternately arranging convex portions 33 and concave portions 34 in the circumferential direction. The external teeth 20, the external teeth 18, and the external teeth 12 are set to have the same number of convex portions 29, 31, 33 and a pitch circle diameter.

  Further, a sleeve 21 that is movable in the axial direction of the motor / generator 4 is provided. The sleeve 21 is an annular member centered on the axis A <b> 1, and internal teeth 22 are formed on the inner periphery of the sleeve 21. The inner teeth 22 are meshed with the outer teeth 20. In this embodiment, the axial direction means a direction along the axis A1 of the motor / generator 4 or a direction parallel to the axis A1. The internal teeth 22 are formed by alternately arranging convex portions 35 and concave portions 36 in the circumferential direction. The internal teeth 22 and the external teeth 18 and 20 have shapes that can be engaged (engaged) and released, and the engagement form between the internal teeth 22 and the external teeth 18 and 20 is either a spline connection or a serration connection. Good.

  Further, as developed in FIG. 6, a single inclined surface (chamfer) 38 in which the end portions of the convex portions 31 and 33 in the axial direction, that is, the side surfaces of the convex portions 31 and 33 are inclined is formed. A predetermined inclination angle (acute angle) α1 is provided between the inclined surface 38 and a plane B1 orthogonal to the axis A1. In addition, a single inclined surface (chamfer) 39 is formed by inclining the end of the convex portion 35, that is, the side surface of the convex portion 35. An inclination angle α1 is provided between the inclined surface 39 and a plane B1 orthogonal to the axis A1. The inclined surface 38 and the inclined surface 39 are inclined in the same direction and are parallel to each other. The sleeve 21, the internal teeth 22, the external teeth 18, the hub 19, the external teeth 20, the external teeth 12, and the like configured as described above constitute a dog clutch 37 and an actuator 23 that operates the sleeve 21 in the axial direction. Is provided. The dog clutch 37 is a kind of synchronizer mechanism or synchronous meshing mechanism. The actuator 23 may be an electromagnetic actuator, a hydraulic actuator, or a mechanical actuator.

  On the other hand, as shown in FIG. 2, an electronic control device 24 is provided as a controller for controlling the entire vehicle Ve. The electronic control device 24 includes a signal indicating a vehicle speed, a signal indicating an acceleration request, and a signal indicating a braking request. , A signal indicating the engine speed, a signal of the resolver 25 for detecting the rotation angle and the rotation speed of the motor / generator 2, and a resolver 40 as a sensor for detecting the rotation direction, rotation angle, and rotation speed of the motor / generator 4 with high accuracy. And a signal from the stroke detection sensor 52 for detecting the amount of movement of the sleeve 21 in the axial direction are input. The electronic control unit 24 outputs a signal for controlling the motor generators 2 and 4, a signal for controlling the engine 1, and a signal for controlling the actuator 23.

  In the vehicle Ve shown in FIG. 2, for example, when the D position is selected, based on the signal input to the electronic control device 24 and the data stored in the electronic control device 24, the engine running mode, Modes such as an automobile (EV) mode and a hybrid mode can be selectively switched. When the engine running mode is selected, fuel is supplied to the engine 1 and the engine 1 rotates autonomously, while power supply to the motor / generator 2 is stopped. When the engine 1 is rotating autonomously, the engine torque is transmitted to the power distribution device 5 via the input shaft 3.

  On the other hand, when the electric vehicle mode is selected, the motor / generator 2 is powered and the torque of the motor / generator 2 is transmitted to the output shaft 26, while no fuel is supplied to the engine 1. When the hybrid mode is selected, the engine 1 rotates autonomously and the motor / generator 2 is powered.

  When the engine 1 is driven, the power of the engine 1 is transmitted to the power distribution device 5, and the power is distributed to the wheels 28 and the motor / generator 4. More specifically, when the engine torque is input to the carrier 11, the motor / generator 4 functions as a reaction force element, the engine torque is transmitted to the output shaft 26 via the ring gear 9, and the differential 27 is Via the wheel 28. When the rotational speed of the motor / generator 4 is controlled, the engine rotational speed can be controlled steplessly (continuously) by the differential action of the sun gear 8, the ring gear 9 and the carrier 11. In this way, the ratio between the engine speed and the rotation speed of the ring gear 9, that is, the gear ratio is controlled steplessly. That is, the power distribution device 5 also has a function as a continuously variable transmission. Here, forward / reverse of the rotation direction of the motor / generator 2 can be switched, and powering or regeneration of the motor / generator 2 can also be switched. When the motor / generator 2 regenerates, the generated power is charged in the power storage device 17.

  Further, when the speed ratio of the power distribution device 5 is controlled, when the rotational speed of the sun gear 8 is made zero, that is, when the sun gear 8 is stopped, the sun gear 8 can be stopped by the function of the motor generator 4. Is possible. It is also possible to stop the sun gear 8 by controlling the dog clutch 37. That is, when the operation of the sleeve 21 in the axial direction is controlled by the actuator 23 and the inner teeth 22 of the sleeve 21 are not engaged with either the outer teeth 18 or the outer teeth 12, the sun gear 8 and the motor generator 4 is rotatable, and the sun gear 8 and the ring gear 9 are relatively rotatable.

  On the other hand, when the sleeve 21 moves leftward in FIG. 2 and the inner teeth 22 are engaged with the outer teeth 18, the sun gear 8 and the motor / generator 4 are stopped. On the other hand, when the sleeve 21 moves rightward in FIG. 2 and the inner teeth 22 are engaged with the outer teeth 12, the sun gear 8, the carrier 11, and the ring gear 9 are integrally rotated. That is, the gear ratio of the power distribution device 5 is 1.

  Next, a specific control example when the dog clutch 37 is engaged will be described based on the flowchart of FIG. Here, a case where the inner teeth 22 of the sleeve 21 and the outer teeth 18 are engaged will be described. First, when the internal teeth 22 and the external teeth 18 are released and the sleeve 21 and the motor / generator 4 are stopped at a predetermined circumferential phase, the internal teeth 22 and the external teeth 18 are engaged. When the condition to be combined is satisfied, the sleeve 21 is moved in the axial direction by the actuator 23.

  Here, when the phase of the internal teeth 22 and the phase of the external teeth 18 do not match, that is, when there is a phase difference, the sleeve 21 starts moving in the axial direction from the initial position as shown in FIG. When the predetermined amount is moved, the inclined surface 39 of the convex portion 35 and the inclined surface 38 of the convex portion 31 come into contact with each other. Whether or not the inclined surface 39 of the convex portion 35 and the inclined surface 38 of the convex portion 31 are in contact with each other can be determined based on the load of the actuator 23. The initial position of the sleeve 21 means the position of the sleeve 21 in the axial direction when the internal teeth 22 and the external teeth 18 are released. Furthermore, the phase of the internal teeth 22 and the phase of the external teeth 18 mean the positions of the concave portions 36, the convex portions 35, the convex portions 31, and the concave portions 32 in the circumferential direction.

  When the sleeve 21 is moved in the axial direction, the convex portion 31 of the external tooth 18 enters the concave portion 36 of the internal tooth 22 without the convex portion 31 and the convex portion 35 coming into contact, and the concave portion 32 of the external tooth 18. When the internal teeth 22 and the external teeth 18 are in a relative positional relationship such that the convex portion 35 of the internal teeth 22 enters, the phase of the internal teeth 22 and the phase of the external teeth 18 match. Become. On the other hand, when the sleeve 21 is moved in the axial direction and the internal tooth 22 and the external tooth 18 are in a relative positional relationship such that the convex portion 31 and the convex portion 35 are in contact, the phase of the internal tooth 22 And the phase of the external teeth 18 do not match, that is, there is a phase difference.

  During the above operation, the amount of movement of the sleeve 21 in the axial direction from the time when the sleeve 21 starts moving in the axial direction from the initial position to the time when the convex portion 31 and the convex portion 35 come into contact (stroke amount ST). ) Is obtained (step S1). Further, the phase difference R1 between the internal teeth 22 and the external teeth 18 is obtained based on the stroke amount ST (step S2). This phase difference R1 is represented by an angle. More specifically, the phase difference R <b> 1 can be obtained based on the stroke amount ST and the specifications of the internal teeth 22 and the external teeth 18. Here, the specifications of the internal teeth 22 and the external teeth 18 include the number of convex portions 35 and the number of concave portions 36 of the internal teeth 22, the width of the convex portions 35 and the width of the concave portions 36 in the circumferential direction, The number of the convex portions 31 and the number of the concave portions 32, the width of the convex portion 31 and the width of the concave portion 32 in the circumferential direction, the inclination angle α1, and the like are included. For example, if the inclination angle α1 is the same, the stroke amount ST increases as the phase difference R1 decreases. Thus, when calculating | requiring phase difference R1 based on stroke amount ST, the map which defined the relationship between stroke amount ST and phase difference R1 may be used, and the arithmetic expression containing said parameter may be used. .

  Further, based on the above-described phase difference R1, control is performed to match the phase of the internal teeth 22 and the phase of the external teeth 18, and the sleeve 21 is further moved in the axial direction so that the internal teeth 22 and the external teeth The engagement (meshing) with 18 is completed (step S3), and this control routine is terminated. The processing in step S3 will be specifically described. By controlling the rotation amount (rotation angle) for rotating the sleeve 21 by the torque of the motor / generator 4 based on the phase difference R1 obtained in step S2, the sleeve 21 is controlled. Control is performed to match the phase of the inner teeth 22 with the phase of the outer teeth 18 of the annular member 51. The rotation angle of the motor / generator 4 can be detected by the resolver 40.

  In step S3, the control for moving the sleeve 21 in the axial direction and the control for rotating the sleeve 21 can be executed simultaneously. In this case, the inclined surface 38 and the inclined surface 39 are in contact with each other, and the inner tooth 22 and the outer tooth 18 are relatively moved in the circumferential direction and the axial direction while the inclined surface 38 and the inclined surface 39 slide. When the phase of the internal teeth 22 and the phase of the external teeth 18 coincide with each other, the rotation of the sleeve 21 is completed, and the sleeve 21 moves in the axial direction, so that the internal teeth 22 and the external teeth 18 are moved as shown in FIG. Are engaged.

  On the other hand, in this step S3, the sleeve 21 is rotated so that the phase of the internal teeth 22 and the phase of the external teeth 18 are matched, and then the sleeve 21 is moved in the axial direction so that the internal teeth 22 and the external teeth 18 It is also possible to execute control for engaging the. In this case, the sleeve 21 is moved in the axial direction after the inclined surface 38 and the inclined surface 39 are in contact with each other.

  As described above, when the control of FIG. 1 is executed, the phase of the internal teeth 22 and the phase of the external teeth 18 coincide with each other, so that the internal teeth 22 and the external teeth 18 can be smoothly and reliably engaged. It is possible to suppress the engagement shock. Further, by setting the rotational speed of the motor / generator 4 when the phase difference R1 obtained in step S2 is large to be higher than the rotational speed of the motor / generator 4 when the phase difference R1 is small, the phase of the internal teeth 22 is increased. The time required from the time when the phase of the internal teeth 22 and the external teeth 18 are inconsistent until the phase of the internal teeth 22 matches the phase of the external teeth 18 and the engagement between the internal teeth 22 and the external teeth 18 is completed. Can be shortened as much as possible.

  Further, when the phase difference adjustment is in the initial stage, that is, when the phase difference R1 is large, the motor / generator 4 is controlled to be driven at a high rotational speed, and immediately before the phase of the internal teeth 22 and the phase of the external teeth 18 coincide. In other words, when the phase difference R1 becomes small, it is possible to control the motor / generator 4 to be driven at a low rotational speed. Here, immediately before the phase of the internal tooth 22 and the phase of the external tooth 18 coincide with each other means that the phase difference R1 is equal to or less than a predetermined value. When such control is executed, the phase of the internal tooth 22 and the phase of the external tooth 18 are matched from the point of time when the phase of the internal tooth 22 and the phase of the external tooth 18 do not match, and The time required to complete the engagement with the teeth 18 can be shortened as much as possible, and the shock at the time of stopping the motor generator 4 can be suppressed.

  Furthermore, since both the inclined surface 38 and the inclined surface 39 are inclined in one direction, the rotation direction of the sleeve 21 rotated to match the phase of the inner teeth 22 and the outer teeth 18 is limited to one direction. And the phase difference R1 is uniquely determined. Therefore, the phase adjustment and phase synchronization between the internal teeth 22 and the external teeth 18 and the engagement between the internal teeth 22 and the external teeth 18 can be controlled with higher accuracy.

  When the phase of the internal teeth 22 and the phase of the external teeth 18 match before the engagement between the internal teeth 22 and the external teeth 18, the inclined surface 38 is operated even if the sleeve 21 is moved in the axial direction. And the inclined surface 39 are not in contact with each other, the stroke amount ST detected in step S1 is longer than the maximum stroke amount corresponding to the minimum phase difference, and the stroke amount ST detected in step S1 is the maximum. Based on the fact that it is longer than the stroke amount, in step S2, it is determined that there is no phase difference between the internal teeth 22 and the external teeth 18 (the phases are the same or synchronized). Next, in step S3, the control of moving the sleeve 21 in the axial direction is continued without rotating the motor / generator 4, and the engagement between the inner teeth 22 and the outer teeth 18 is completed.

  On the other hand, in the configuration of FIG. 2, when the sleeve 21 is moved rightward in FIG. 2 and the internal teeth 22 and the external teeth 12 are engaged, the control of FIG. If the phase of the external teeth 12 and the phase of the external teeth 12 are adjusted, the internal teeth 22 and the external teeth 12 can be engaged smoothly and reliably, and the engagement shock can be suppressed. When the control example of FIG. 1 is executed in order to engage the internal teeth 22 and the external teeth 12, the “external teeth 18” in the description related to the control of FIG. The “convex portion 31” may be read as the “convex portion 33”, and the “concave portion 32” may be read as the “concave portion 34”.

  Here, the correspondence between the functional means described in the flowchart of FIG. 1 and the configuration of the present invention will be described. Step S1 corresponds to the movement amount detecting means of the present invention, and step S2 corresponds to the level of the present invention. This corresponds to the phase difference calculating means, and step S3 corresponds to the phase adjusting means of the present invention. The sleeve 21 corresponds to the first engagement member of the present invention, the annular members 50 and 51 correspond to the second engagement member of the present invention, and the internal teeth 22 correspond to the first engagement member. The external teeth 12 and 18 correspond to the teeth of the second engaging member of the present invention, the motor generator 4 corresponds to the electric motor of the present invention, and the inclined surface 39 of the present invention. The inclined surface 38 corresponds to the first inclined surface, the inclined surface 38 corresponds to the second inclined surface of the present invention, and the rotation direction, rotation amount (rotation angle) and rotation number of the motor / generator 4 are the same as those of the electric motor of the present invention. This corresponds to the drive state, and the stroke amount ST corresponds to the movement amount of the present invention.

  Furthermore, in the above-described embodiment, the first engagement member is configured to move in the axial direction by the actuator, but the second engagement member is configured to operate in the axial direction by the actuator. A vehicle having a power transmission device is also included in the embodiment of the present invention. In addition to the configuration in which the teeth of the first engagement member and the teeth of the second engagement member are engaged with each other while both the first engagement member and the second engagement member are stopped. In addition, when the first engagement member and the second engagement member rotate together and the rotational speeds coincide with each other, the teeth of the first engagement member and the teeth of the second engagement member A configuration for engaging the two is also included in the embodiment of the present invention.

It is a flowchart which shows an example of the control apparatus of the vehicle of this invention. It is a conceptual diagram which shows the power train and control system of the vehicle which are the Examples of this invention. FIG. 3 is a side view showing a main part of the dog clutch shown in FIG. 2. It is a side view of the external tooth which comprises the dog clutch shown by FIG. It is a side view of the external tooth which comprises the dog clutch shown by FIG. FIG. 3 is a development view showing an engagement process of the dog clutch shown in FIG. 2. FIG. 3 is a development view showing an engagement process of the dog clutch shown in FIG. 2.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 4 ... Motor generator, 8 ... Sun gear, 9 ... Ring gear, 11 ... Carrier, 12, 18 ... External tooth, 21 ... Sleeve, 22 ... Internal tooth, 23 ... Actuator, 31, 33, 35 ... Convex part, 32, 34 , 36 ... recess, 38, 39 ... inclined surface, A1 ... axis, B1 ... plane, R1 ... phase difference, ST ... stroke amount, Ve ... vehicle, α1 ... inclination angle.

Claims (4)

A first engaging member having teeth configured by alternately arranging recesses and projections in the circumferential direction; and a tooth configured by alternately arranging recesses and projections in the circumferential direction; And a second engagement member disposed coaxially with the first engagement member, an electric motor for rotating the first engagement member, and the first engagement member or the second engagement. In a vehicle control device having an actuator that engages and releases the teeth of the first engagement member and the teeth of the second engagement member by moving any one of the combined members in the axial direction. ,
In order to engage the teeth of the first engagement member and the teeth of the second engagement member, either the first engagement member or the second engagement member is moved in the axial direction. When the first engaging member or the second engaging member starts to move in the axial direction when moved, the convex portion of the first engaging member and the second engaging member A movement amount detection means for obtaining a movement amount in the axial direction of the first engagement member or the second engagement member until a point of contact with the convex portion of the first engagement member;
A phase difference calculating means for obtaining a phase difference in the circumferential direction between the teeth of the first engagement member and the teeth of the second engagement member based on the amount of movement in the axial direction;
By controlling the driving state of the electric motor that rotates the first engaging member based on the phase difference obtained by the phase difference calculating means, the teeth of the first engaging member and the second A vehicle control device comprising phase adjusting means for matching a phase in a circumferential direction with a tooth of an engaging member.   2. The vehicle according to claim 1, wherein the phase adjustment unit includes a unit configured to make a rotation speed of the electric motor when the phase difference is large higher than a rotation speed of the electric motor when the phase difference is small. Control device.   When the phase difference between the teeth of the first engaging member and the teeth of the second engaging member is large in the circumferential direction, the phase adjusting means controls the rotational speed of the electric motor to a high rotational speed. Thereafter, when the phase difference in the circumferential direction between the teeth of the first engaging member and the teeth of the second engaging member becomes small, the means for controlling the rotational speed of the electric motor to a low rotational speed. The vehicle control device according to claim 1, further comprising:   A single first inclined surface having a predetermined inclination angle is formed between the convex portion of the first engaging member in the axial direction and a plane perpendicular to the axial line. At the end in the axial direction of the convex portion of the joint member, a single second inclined surface having the inclination angle is formed between the first inclined surface and a plane orthogonal to the axis. The vehicle control device according to any one of claims 1 to 3, wherein the second inclined surface is parallel to the second inclined surface.

Images