WO2016024319A1 - Système de freinage de véhicule, machine électrique rotative, et véhicule - Google Patents

Système de freinage de véhicule, machine électrique rotative, et véhicule Download PDF

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Publication number
WO2016024319A1
WO2016024319A1 PCT/JP2014/071198 JP2014071198W WO2016024319A1 WO 2016024319 A1 WO2016024319 A1 WO 2016024319A1 JP 2014071198 W JP2014071198 W JP 2014071198W WO 2016024319 A1 WO2016024319 A1 WO 2016024319A1
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WO
WIPO (PCT)
Prior art keywords
electrical machine
rotating electrical
rotor
vehicle
parking brake
Prior art date
Application number
PCT/JP2014/071198
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English (en)
Japanese (ja)
Inventor
野中　剛
隆明 石井
大戸　基道
森本　進也
荘平 大賀
Original Assignee
株式会社安川電機
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Application filed by 株式会社安川電機 filed Critical 株式会社安川電機
Priority to PCT/JP2014/071198 priority Critical patent/WO2016024319A1/fr
Publication of WO2016024319A1 publication Critical patent/WO2016024319A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/106—Structural association with clutches, brakes, gears, pulleys or mechanical starters with dynamo-electric brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

Definitions

  • the disclosed embodiment relates to a vehicle brake system, a rotating electrical machine, and a vehicle.
  • Patent Document 1 describes a brake device that is mounted on a hybrid vehicle and includes a regenerative brake mechanism, a hydraulic brake mechanism, and a parking brake.
  • the present invention has been made in view of such problems, and an object thereof is to provide a vehicle brake system, a rotating electrical machine, and a vehicle that can simplify the configuration and control.
  • a vehicle brake system mounted on a vehicle having a function of traveling using a rotating electrical machine, and the rotating electrical machine has a parking brake function.
  • a vehicle brake system having means and an operation member operated to turn on or off the parking brake function of the rotating electric machine is applied.
  • a rotating electrical machine used for the vehicle brake system is applied.
  • a vehicle including the vehicle brake system is applied.
  • the configuration and control of the vehicle brake system can be simplified.
  • FIG. 3 is a cross-sectional view of the rotating electrical machine taken along a line AA in FIG. 2. It is a perspective view showing an example of the structure of a shaft, a slider, and a hub. It is a perspective view showing an example of operation of a rotor when strengthening field magnetic flux. It is a perspective view showing an example of operation of a rotor when field magnetic flux is weakened.
  • a parking brake system 100 (an example of a vehicle brake system) is mounted on a vehicle C.
  • the vehicle C has a function of traveling using the rotating electrical machine 1 and is, for example, an electric vehicle (EV) or a hybrid vehicle (HEV).
  • the parking brake system 100 includes a rotating electrical machine 1 having a parking brake function, and an operation member 51 that is operated to turn on or off the parking brake function of the rotating electrical machine 1.
  • a lever is illustrated as an example of the operation member 51, but another member such as a pedal or a switch may be used.
  • illustration of a brake system other than the parking brake is omitted.
  • the parking brake system 100 also includes a variable field mechanism 50 that varies the field magnetic flux of the rotating electrical machine 1 and a controller 52.
  • the controller 52 outputs a control signal to the control motor 55 of the variable field mechanism 50 according to the operation of the operation member 51 to control the field magnetic flux of the rotating electrical machine 1. More specifically, the controller 52 controls the variable field mechanism 50 so that the field magnetic flux of the rotating electrical machine 1 is maximized when the operation member 51 is operated to turn on the parking brake function.
  • the rotating electrical machine 1 exhibits a parking brake function by a variable field mechanism 50 and a controller 52 that controls the variable field mechanism 50. That is, in the present embodiment, the variable field mechanism 50 and the controller 52 correspond to an example of “means for giving the rotating electrical machine a parking brake function”.
  • the rotating electrical machine 1 is a variable field type rotating electrical machine capable of changing a field magnetic flux.
  • the rotating electrical machine 1 includes an annular stator 2, a shaft 34 disposed concentrically on the radially inner side of the stator 2, and a rotor 3 provided on the shaft 34. .
  • the stator 2 is, for example, an annular stator core 13 provided on the inner peripheral surface of a substantially cylindrical frame 17 and having a plurality of teeth portions 13a in the circumferential direction, and a plurality of stators mounted on the plurality of teeth portions 13a.
  • a winding 12 is provided.
  • the stator core 13 includes a slot 13b (corresponding to an example of a winding gap) that is opened radially inward between adjacent tooth portions 13a. Both sides in the circumferential direction of the stator winding 12 attached to the tooth portion 13a are accommodated in slots 13b on both sides of the tooth portion 13a.
  • the stator iron core 13 is fastened to the load side bracket 16 by a stator fastening bolt 14.
  • On the non-load side (left side in FIG. 2) of the stator core 13 a connection part 21 for connecting the winding start and end terminals of the stator winding 12 is arranged.
  • the load side bracket 16 and the frame 17 are provided with a load side bearing 18 and an anti-load side bearing 19, respectively.
  • the shaft 34 is rotatably supported by the load side bearing 18 and the anti-load side bearing 19.
  • the “load side” refers to the direction in which a load is attached to the rotating electrical machine 1, that is, the direction in which the shaft 34 protrudes (right side in FIG. 2) in this example.
  • the direction opposite to the load side that is, the direction in which the gear wheel 23 and the like are arranged with respect to the rotating electrical machine 1 in this example (left side in FIG. 2) is indicated.
  • the frame 17 is fixed to the load side bracket 16 by the frame fastening bolt 11 inserted from the non-load side.
  • a sensor magnet 20 is attached to the anti-load side plate 33 provided on the anti-load side of the rotor 3, and a position detection unit 25 for detecting the rotational position of the rotor 3 by the sensor magnet 20 is provided inside the frame 17. It is done.
  • the rotor 3 is divided into three in the axial direction. That is, the rotor 3 includes one movable rotor 47 disposed in the center in the axial direction, a fixed rotor 46 disposed on the load side of the movable rotor 47, and a fixed rotor 48 disposed on the non-load side.
  • the number of divisions of the rotor 3 is not limited to 3, but may be, for example, 5 divisions. However, for the sake of explanation, the case of 3 divisions will be described as an example.
  • the movable rotor 47 includes a rotor core 38 disposed with a magnetic gap between the stator 2 and a plurality of permanent magnets 39 provided on the rotor core 38.
  • the plurality of permanent magnets 39 is a mode in which two permanent magnets 39 in which the same magnetic poles of N poles or S poles face each other form a V-shaped pair projecting radially inward when viewed from the axial direction. Opposing magnetic poles of the same polarity are alternately arranged in the circumferential direction and arranged inside the rotor core 38.
  • N pole and S pole magnetic pole portions 47 a having different polarities alternately in the circumferential direction are formed on the outer periphery of the movable rotor 47.
  • variable field mechanism 50 including a drive mechanism for relatively rotating the movable rotor 47 will be described later.
  • the fixed rotors 46 and 48 have the same configuration as the movable rotor 47. As shown in FIGS. 5A and 5B, the fixed rotors 46 and 48 include a rotor core 38 and the same number of permanent magnets 39 as the permanent magnets 39 of the movable rotor 47. The permanent magnet 39 is arranged in the same manner as the movable rotor 47, and N and S pole portions 46a and 48a having different polarities in the circumferential direction are formed on the outer circumferences of the fixed rotors 46 and 48, respectively. .
  • An annular load side plate 31 and an anti load side plate 33 are fixed to the load side and the anti load side of the rotor 3, respectively.
  • the fixed rotors 46, 48 are fixed to the load side plate 31 and the anti-load side plate 33 by the bolts 35, so that the shaft 34 passes through the load side plate 31 and the anti-load side plate 33. Fixed to.
  • variable field mechanism 50 An example of the configuration of the variable field mechanism 50 will be described with reference to FIGS. 2, 3, and 4.
  • the rotor core 38 of the movable rotor 47 is attached to the shaft 34 via the hub 32 and the slider 37.
  • the variable field mechanism 50 includes the hub 32, the slider 37, and the like.
  • the shaft 34 is formed with a square spline portion 34 a along the axial direction on the outer peripheral surface near the anti-load side (oblique left lower side in FIG. 4).
  • the groove part 34b of the radial direction both sides which the both ends of the pin 36 which penetrated the slider 37 penetrates is formed between square-shaped spline parts 34a.
  • the groove part 34b is provided in the shape of a long hole from the substantially central part in the axial direction of the square spline part 34a to the vicinity of the end part on the load side (oblique upper right side in FIG. 4).
  • a square spline portion 37a is formed along the axial direction on the inner peripheral surface, and the pin 36 penetrates in the radial direction.
  • the slider 37 is mounted on the outer periphery of the shaft 34, and the square spline portion 37 a is engaged with the square spline portion 34 a of the shaft 34.
  • the slider 37 can move in the axial direction within the range of the groove 34b with respect to the shaft 34 by the movement of the pin 36 in the axial direction.
  • a torsion spline portion 37 b inclined in the circumferential direction is formed on the outer peripheral surface of the slider 37.
  • the movable rotor 47 is mounted on the outer peripheral surface of the hub 32.
  • a torsion spline portion 32a inclined in the same direction as the torsion spline portion 37b of the slider 37 is provided on the inner peripheral surface of the hub 32.
  • the torsion spline portion 32 a engages with the torsion spline portion 37 b of the slider 37.
  • the hub 32 rotates by a predetermined amount in the circumferential direction by the movement of the slider 37 by a predetermined amount in the axial direction.
  • An uneven portion 32 b is provided on the outer peripheral surface of the hub 32.
  • the uneven portion 32 b engages with an uneven portion 38 a (see FIG.
  • the movable rotor 47 rotates a predetermined amount in the circumferential direction integrally with the hub 32 by a predetermined amount of movement of the slider 37 in the axial direction.
  • the central portion of the pin 36 is attached to a pin holder 28 installed in the shaft 34 so as to be movable in the axial direction.
  • the pin holder 28 is attached to the load side end portion of the feed male screw 42 via the movable bearing 40.
  • the movable bearing 40 is, for example, a pair of angular bearings, and is arranged so that the axial support directions face each other.
  • the movable bearing 40 is held by a bearing holder 44 fixed to the load side end of the feed male screw 42 by a bolt 45.
  • the opposite end of the feed male screw 42 is engaged with the feed screw 43.
  • a fixed bearing 41 is mounted between the feed screw 43 and the shaft 34.
  • the fixed bearing 41 is fixed to the feed screw 43 by the nut 29.
  • the fixed bearing 41 is a pair of angular bearings, for example, and is arranged so that the axial support directions face each other.
  • a hexagonal hole 42 a is formed at the end of the feed male screw 42 on the side opposite to the load.
  • the variable field mechanism 50 includes a gear wheel 23 having a shaft portion 23a inserted into a hole 42a of a feed male screw 42, a worm shaft 27 meshing with the gear wheel 23, a worm A control motor 55 (see FIG. 1) having a shaft 27 attached to the output shaft is provided.
  • the gear wheel 23 is rotatably supported by the bearing 26 with respect to the feed screw 43.
  • the gear wheel 23, the bearing 26, the worm shaft 27, and the like are covered with a cover 24 attached to the non-load side of the frame 17.
  • the variable field mechanism 50 operates as follows.
  • the control motor 55 rotates the worm shaft 27, the gear wheel 23 rotates and the feed male screw 42 moves in the axial direction with respect to the feed screw 43.
  • the feed male screw 42 moves the pin 36 and the pin holder 28 in the axial direction while being blocked from the rotation of the shaft 34 by the movable bearing 40 attached to the end portion on the load side.
  • the pin 36 moves the slider 37 outside the shaft 34 in the axial direction. Since the slider 37 is engaged with the hub 32 by the torsion spline portions 37b and 32a, when the slider 37 moves in the axial direction, the hub 32 and the movable rotor 47 fixed thereto are two fixed rotations fixed to the shaft 34. It rotates with respect to the children 46 and 48.
  • the rotating electrical machine 1 functions as a motor when the vehicle C is accelerated, etc., and also functions as a generator when the vehicle is decelerated, and generates braking force of the vehicle C while regenerating electric power. This regenerative braking force decreases as the speed of the vehicle C decreases, and does not occur in a stopped state.
  • the rotation of the rotor 3 is prevented using the cogging torque that acts on the magnetic pole portion of the rotor 3 of the rotating electrical machine 1, and the parking brake function is exhibited. This will be described in detail with reference to FIGS. 6A and 6B and FIGS. 7A and 7B.
  • the rotating electrical machine 1 having, for example, 10 poles and 12 slots (the number of poles of the rotor 3 is 10 and the number of slots of the stator 2 is 12), in principle, during one rotation of the rotor 3 60 cycles of cogging torque are generated.
  • cogging torque generated in the magnetic pole portion 47a of the central movable rotor 47 and cogging torque generated in the magnetic pole portions 46a and 48a of the fixed rotors 46 and 48 on both sides are separately generated.
  • the magnitude of the cogging torque can be adjusted by relatively rotating the magnetic pole part 47a and the magnetic pole parts 46a and 48a by the variable field mechanism 50.
  • 6A and 6B show the relationship between the angular position of the rotor 3 in the rotational direction and the cogging torque.
  • the “cogging torque ratio” on the vertical axis represents the ratio of the cogging torque when the maximum value of the cogging torque of the magnetic pole portion 47a of the central movable rotor 47 is 1.
  • “center” indicated by a broken line in the figure is the cogging torque of the movable rotor 47
  • “both sides” indicated by a thin solid line is a combination of cogging torques of the fixed rotors 46 and 48
  • “synthesis” indicated by a thick solid line is the movable rotor.
  • the cogging torque of the rotor 3 as a whole obtained by combining the cogging torque of 47 and the cogging torque of the fixed rotors 46 and 48 is shown.
  • FIG. 6A shows the cogging torque when the rotor 3 is in the state shown in FIG. 7A. That is, as shown in FIG. 7A, the magnetic pole portion 47a of the movable rotor 47 and the magnetic pole portions 46a and 48a of the fixed rotors 46 and 48, each having the same polarity, are aligned in the axial direction (the relative rotation angle is approximately 0 degrees). ).
  • the cogging torque of the magnetic pole portion 47a of the central movable rotor 47 and the cogging torque of the magnetic pole portions 46a and 48a of the fixed rotors 46 and 48 on both sides have substantially the same amplitude with a rotation angle of approximately 6 ° as one cycle. It changes like a sine wave.
  • the cogging torque of the magnetic pole portion 47a and the cogging torque of the magnetic pole portions 46a and 48a are strengthened, and the cogging torque obtained by combining the movable rotor 47 and the fixed rotors 46 and 48 is the maximum.
  • electromagnetic design is performed on each magnetic pole portion 47a, 46a, 48a of the rotating electrical machine 1 so that the maximum cogging torque becomes the cogging torque necessary for locking the vehicle C.
  • FIG. 6B shows the cogging torque when the rotor 3 is in the state shown in FIG. 7B. That is, as shown in FIG. 7B, the relative rotation angle between the magnetic pole portion 47a of the movable rotor 47 and the magnetic pole portions 46a and 48a of the fixed rotors 46 and 48, each having the same polarity, is approximately 3 degrees. In this state, the cogging torque of the magnetic pole part 47a and the cogging torque of the magnetic pole parts 46a and 48a are out of phase by a half period, so the cogging torques cancel each other. Accordingly, the cogging torque obtained by combining the movable rotor 47 and the fixed rotors 46 and 48 is minimized.
  • the controller 52 when the operation member 51 is operated to turn on the parking brake function when the vehicle C is stopped or parked, the controller 52 outputs a control signal to the control motor 55 of the variable field mechanism 50 to output the rotor.
  • the controller 52 When the operation member 51 is operated so as to turn off the parking brake function when the vehicle C starts, the controller 52 outputs a control signal to the control motor 55 of the variable field mechanism 50 to rotate the rotor 3.
  • the cogging torque can be minimized and the vehicle C can be started easily.
  • the field magnetic flux is varied by the variable field mechanism 50 in accordance with the traveling state. However, since the rotor 3 is rotating, the cogging torque is applied regardless of the magnitude of the cogging torque. It will not be.
  • the parking brake system 100 includes the rotating electrical machine 1 and means for giving the rotating electrical machine 1 a parking brake function.
  • the rotating electrical machine 1 is used as a motor at the time of acceleration in normal traveling, and is used as a generator that performs regenerative braking at the time of deceleration.
  • the parking brake function with which the rotary electric machine 1 is provided at the time of a stop and parking is used.
  • a single brake system in which a plurality of brake systems (regenerative brake and parking brake) are integrated can be constructed. Thereby, compared with the case where a some brake system is mounted separately, a structure can be simplified and the control becomes easy. Further, since the system configuration is simplified, the mounting property on the vehicle is improved and the cost can be reduced.
  • the parking brake system 100 includes an operation member 51 that is operated to turn on or off the parking brake function of the rotating electrical machine 1, and means for causing the rotating electrical machine 1 to have a parking brake function is provided. And a variable field mechanism 50 and a controller 52.
  • the cogging torque of the rotating electrical machine 1 can be maximized to make the rotating electrical machine 1 almost in a locked state. Therefore, the rotary electric machine 1 can be provided with a parking brake function without using a hydraulic mechanism or a friction mechanism.
  • the rotating electrical machine 1 a variable field type, it is possible to obtain a strong acceleration / deceleration torque by adjusting the field magnetic flux so as to increase during rapid acceleration / deceleration. As described above, the field magnetic flux can be adjusted to an optimum value according to the traveling state, so that it is possible to travel while obtaining high efficiency.
  • the rotating electrical machine 1 has a stator core 13 in which a slot 13b in which the stator winding 12 is accommodated opens toward the radially inner side.
  • a stator core 13 in which a slot 13b in which the stator winding 12 is accommodated opens toward the radially inner side.
  • the field magnetic flux is made variable by partially rotating the rotor 3 divided in the axial direction by the variable field mechanism 50.
  • the variable field changing the field magnetic flux of the rotating electrical machine 1 is changed.
  • the magnetic mechanism is not limited to this.
  • the field magnetic flux may be varied by partially rotating the rotor divided in the radial direction.
  • the rotor may include a rotor winding, and the field magnetic flux may be varied by changing the current.
  • Second Embodiment> the field magnetic flux of the rotating electrical machine 1 is varied and the cogging torque of the rotor 3 is used to give the rotating electrical machine 1 a parking brake function. It is good also as a structure which brakes and gives the rotary electric machine 1A the parking brake function.
  • the second embodiment will be described with reference to FIGS. 8, 9, 10A, and 10B.
  • the parking brake system 100 includes the operation member 51 described above and the rotating electrical machine 1A.
  • the rotating electrical machine 1 ⁇ / b> A includes a load side plate 31 ⁇ / b> A and an anti-load side plate 33 ⁇ / b> A (corresponding to an example of a side plate) that fix the rotor 3 to the shaft 34.
  • the rotating electrical machine 1A is in contact with the anti-load side plate 33A and applies a braking force to the rotor 3, and a drive for moving the braking plate 61 back and forth with respect to the rotor 3 according to the operation of the operation member 51.
  • a device 60 is provided.
  • FIG. 10A shows an example of the structure of the brake plate 61
  • FIG. 10B shows an example of the structure of the anti-load side plate 33A
  • a plurality of through-holes 33a (corresponding to an example of recesses) penetrating in the axial direction are formed in the anti-load side plate 33A at regular intervals along the circumferential direction.
  • the brake plate 61 is, for example, an annular plate member made of a magnetic material (for example, iron).
  • a plurality of support shafts 64 are provided along the circumferential direction on the outer peripheral portion of the surface of the brake plate 61 on the side opposite to the load.
  • a protrusion 64a that can be engaged with the through hole 33a of the anti-load side plate 33A is provided at a position corresponding to the support shaft 64.
  • the support shaft 64 and the protrusion 64a may be used as a single member, and the brake plate 61 may be penetrated.
  • the brake plate 61 may be integrally formed by casting or the like as a shape including the support shaft 64 and the protrusion 64a. Good.
  • the brake plate 61 is movable in the axial direction while being prevented from moving in the rotational direction by inserting the support shaft 64 into the hole 17 a provided in the frame 17.
  • the driving device 60 includes a spring 62, an electromagnet 63, and the like.
  • the spring 62 is attached to the support shaft 64 and provided between the frame 17 and the brake plate 61, and biases the brake plate 61 in the axial direction toward the rotor 3.
  • the electromagnet 63 is attached to the inner peripheral side of the hole 17a of the frame 17, for example.
  • the electromagnet 63 is excited by passing a current through the coil 63 a and attracts the braking plate 61 against the urging force of the spring 62.
  • the power supply to the coil 63a is controlled by, for example, the controller 52 in accordance with the operation of the operation member 51 (see FIG. 1). Note that power supply to the coil 63a may be controlled by a control device different from the controller 52.
  • the operation member 51 when the operation member 51 is operated to turn on the parking brake function when the vehicle C is stopped or parked, the power supply to the coil 63a is cut off, and the brake plate 61 is moved by the spring 62 as shown in FIG. It is pressed against the anti-load side plate 33A. As a result, the brake plate 61 applies a frictional force to the anti-load side plate 33A, and the protrusions 64a of the brake plate 61 fit into the through holes 33a of the anti-load side plate 33A, and the rotation of the rotating electrical machine 1 is locked.
  • the operation member 51 when the operation member 51 is operated to turn off the parking brake function when the vehicle C starts, power is supplied to the coil 63a, and the brake plate 61 is moved by the electromagnet 63 as shown in FIG. It is adsorbed and separated from the anti-load side plate 33A. Thereby, the braking plate 61 does not hinder the rotation of the anti-load side plate 33A, and the braking of the rotating electrical machine 1 is released.
  • the rotating electrical machine 1 ⁇ / b> A exhibits the parking brake function by the anti-load side plate 33 ⁇ / b> A, the brake plate 61, and the drive device 60. That is, in the second embodiment, the anti-load side plate 33A, the braking plate 61, and the driving device 60 correspond to an example of “means for giving the rotating electrical machine a parking brake function”.
  • a rotating electrical machine having a parking brake function can be realized with a simple configuration in which the rotating electrical machine 1A is provided with the anti-load side plate 33A, the braking plate 61, and the driving device 60. Further, since the brake plate 61 is made of a magnetic material, the magnetic attraction force of the rotor 3 can be used when pressing the brake plate 61 against the anti-load side plate 33A. Thereby, the structure of the drive device 60 can be simplified.
  • the braking plate 61 may be an annular plate having no protrusion 64a, and the braking force may be applied to the rotor 3 by a frictional force caused by simple contact with the anti-load side plate 33A.
  • the driving device 60 that moves the braking plate 61 forward and backward with respect to the rotor 3 is not limited to the above-described spring 62 and electromagnet 63.
  • the brake plate 61 and the like are provided on the anti-load side plate 33A side.
  • the brake plate 61 and the like may be provided on the load side plate 31A side, and the load side plate 31A and the anti load side may be provided.
  • a brake plate 61 or the like may be provided for both of the plates 33A.
  • a mechanism for changing the field magnetic flux of the rotating electrical machine 1A may be provided, such as the variable field mechanism 50 of the first embodiment described above.
  • the parking brake system 100 includes the operation member 51 described above and the rotating electrical machine 1B.
  • the rotating electrical machine 1 ⁇ / b> B includes a load side plate 31 ⁇ / b> B and an anti-load side plate 33 ⁇ / b> B (corresponding to an example of a side plate) that fix the rotor 3 to the shaft 34.
  • the rotating electrical machine 1B is in contact with the anti-load side plate 33B and applies a braking force to the rotor 3, and a drive for moving the braking plate 71 forward and backward with respect to the rotor 3 according to the operation of the operation member 51.
  • a device 70 is provided.
  • the brake plate 71 is, for example, an arc-shaped or fan-shaped plate member, and is made of a nonmagnetic material (for example, aluminum).
  • the brake plate 71 may be made of a magnetic material (for example, iron).
  • the brake plate 71 has a friction material 71a that is pressed against the anti-load side plate 33B on the load side surface when contacting the anti-load side plate 33B.
  • the driving device 70 includes a feed screw 72 provided on the frame 17, a feed male screw 73 that supports the outer peripheral side of the brake plate 71 and meshed with the feed screw 72, and a feed male screw 73 as a rotation shaft.
  • the driving device 70 is provided between the shaft portion 76 that supports the inner peripheral side of the brake plate 71 and protrudes from the frame 17, and a collar portion 76 a provided at an end portion of the shaft portion 76 and the frame 17. And a spring 77.
  • the drive device 70 When the vehicle is stopped and parked, if the operation member 51 is operated so as to turn on the parking brake function, the drive device 70 operates as follows. That is, when the control motor 56 is operated to rotate the worm gear 75, the feed gear 74 is rotated, the feed male screw 73 is moved to the load side with respect to the feed screw 72, and the brake plate 71 is moved to the anti-load side plate 33. Move towards Thereby, the friction material 71a is pressed against the anti-load side plate 33, and the rotor 3 is braked by the frictional force.
  • the control motor 56 is opened, and the braking plate 71 is moved against the anti-load side plate 33B by the urging force of the spring 77. And the braking of the rotor 3 is released.
  • the control motor 56 rotates the worm gear 75 and the feed gear 74 in the opposite direction to the on state, and the feed male screw 73 is moved to the opposite load side with respect to the feed screw 72. You may let them.
  • the control motor 56 is controlled by, for example, the controller 52 in accordance with the operation of the operation member 51 (see FIG. 1). Note that the control motor 56 may be controlled by a control device different from the controller 52.
  • the rotating electrical machine 1 ⁇ / b> B exhibits the parking brake function by the anti-load side plate 33 ⁇ / b> B, the brake plate 71, and the drive device 70. That is, in the third embodiment, the anti-load side plate 33B, the brake plate 71, and the drive device 70 correspond to an example of “means for giving the rotating electrical machine a parking brake function”.
  • the pressing force of the brake plate 71 can be adjusted to an arbitrary magnitude using the control motor 56, not only the parking brake function but also the brake function used when the vehicle C is decelerated, etc.
  • the provided rotating electrical machine can be realized.
  • the brake plate 71 is made of a nonmagnetic material (aluminum or the like), an eddy current can be generated in the brake plate 71 in a state of being separated from the rotor 3 to generate a braking force.
  • the braking force by the eddy current can be used as an auxiliary force for the regenerative brake at the time of sudden deceleration or the like.
  • the brake plate 71 is made of a magnetic material, the magnetic attraction force of the rotor 3 can be used when the brake plate 71 is pressed against the anti-load side plate 33B, so that the configuration of the drive device 70 can be simplified.
  • the braking plate 61 may be an annular plate having no protrusion 64a, and the braking force may be applied to the rotor 3 by a frictional force caused by simple contact with the anti-load side plate 33A.
  • the drive device 70 for moving the brake plate 61 forward and backward with respect to the rotor 3 is not limited to the device using the above-described control motor or the like.
  • the brake plate 71 and the like are provided on the anti-load side plate 33B side.
  • the brake plate 71 and the like may be provided on the load side plate 31B side, and the load side plate 31B and the anti load side may be provided.
  • a brake plate 71 or the like may be provided for both of the plates 33B.
  • a mechanism for changing the field magnetic flux of the rotating electrical machine 1A may be provided, such as the variable field mechanism 50 of the first embodiment described above.

Abstract

Le problème à résoudre dans le cadre de l'invention est de proposer une simplification de la configuration et de la commande pour un système de freinage de véhicule ou analogue. La solution proposée consiste en un système de freinage de véhicule (100) installé dans un véhicule (C) qui est pourvu d'une fonction pour le déplacement en utilisant une machine électrique rotative (1). Dans ledit système, afin de fournir une fonction de frein de stationnement à la machine électrique rotative (1), le système de freinage de véhicule comprend : un mécanisme à champ variable (50) qui change le flux magnétique de champ de la machine électrique rotative (1) ; un dispositif de commande (52) qui commande le mécanisme à champ variable (50) ; et un élément d'actionnement (51) qui est actionné pour allumer ou éteindre la fonction de frein de stationnement de la machine électrique rotative (1).
PCT/JP2014/071198 2014-08-11 2014-08-11 Système de freinage de véhicule, machine électrique rotative, et véhicule WO2016024319A1 (fr)

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CN111828624A (zh) * 2019-04-17 2020-10-27 本田技研工业株式会社 驻车装置
JP2021008912A (ja) * 2019-07-01 2021-01-28 シナノケンシ株式会社 ブレーキ付きモータ

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JPH09109696A (ja) * 1995-10-23 1997-04-28 Honda Motor Co Ltd ホイールモータユニットおよび電動車両
JP2010154699A (ja) * 2008-12-26 2010-07-08 Hitachi Ltd 磁束可変型回転電機
JP2012019642A (ja) * 2010-07-09 2012-01-26 Hitachi Ltd 風力発電システム
JP2012191690A (ja) * 2011-03-09 2012-10-04 Yaskawa Electric Corp 可変界磁回転電機
JP2013135532A (ja) * 2011-12-26 2013-07-08 Aisin Seiki Co Ltd 車両の制動装置

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Publication number Priority date Publication date Assignee Title
JPH09109696A (ja) * 1995-10-23 1997-04-28 Honda Motor Co Ltd ホイールモータユニットおよび電動車両
JP2010154699A (ja) * 2008-12-26 2010-07-08 Hitachi Ltd 磁束可変型回転電機
JP2012019642A (ja) * 2010-07-09 2012-01-26 Hitachi Ltd 風力発電システム
JP2012191690A (ja) * 2011-03-09 2012-10-04 Yaskawa Electric Corp 可変界磁回転電機
JP2013135532A (ja) * 2011-12-26 2013-07-08 Aisin Seiki Co Ltd 車両の制動装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111828624A (zh) * 2019-04-17 2020-10-27 本田技研工业株式会社 驻车装置
JP2020175739A (ja) * 2019-04-17 2020-10-29 本田技研工業株式会社 パーキング装置
JP2021008912A (ja) * 2019-07-01 2021-01-28 シナノケンシ株式会社 ブレーキ付きモータ
US11545872B2 (en) 2019-07-01 2023-01-03 Shinano Kenshi Kabushiki Kaisha Motor with brake

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