JP2023035066A5

JP2023035066A5 -

Info

Publication number: JP2023035066A5
Application number: JP2021141666A
Authority: JP
Filing date: 2021-08-31
Publication date: 2023-09-04

Description

例えば、低負荷荷重領域においては前記所定の進角量の値を大きく設定し進角制御を行い、高負荷荷重領域においては前記所定の進角量の値を小さく設定するか０°に設定し進角制御を行えば、クラッチのガタ詰め区間に対応する区間においてクラッチアクチュエータの応答性を向上できるとともに、押圧力制御区間に対応する区間においてクラッチを押圧する最大荷重の低下を抑制できる。
電動モータは、ブラシレス直流モータであり、ロータに設けられた磁石（２３０）を有する。クラッチアクチュエータは、磁石の磁束に基づき信号を出力可能な回転角センサ（１７０）を有する。回転角センサからの信号に基づき、ロータの回転角を検出可能である。前記所定の進角量は、コイルに通電することなくロータを外部から強制的に回転駆動したときにコイルに発生する誘起電圧および回転角センサから出力される信号の立ち上がり位相差と、電動モータの無負荷時における回転数であるモータ無負荷回転数が最大となるときの進角量とに基づき設定されている。 For example, in the low load region, the predetermined value of the advance angle is set large and the advance angle is controlled, and in the high load region, the predetermined value of the advance angle is set small or set to 0°. If the advance angle control is performed, it is possible to improve the responsiveness of the clutch actuator in the section corresponding to the looseness control section of the clutch, and to suppress the decrease in the maximum load that presses the clutch in the section corresponding to the pressing force control section.
The electric motor is a brushless DC motor and has magnets (230) mounted on the rotor. The clutch actuator has a rotation angle sensor (170) capable of outputting a signal based on the magnetic flux of the magnet. The rotation angle of the rotor can be detected based on the signal from the rotation angle sensor. The predetermined amount of advance is determined by the induced voltage generated in the coil when the rotor is forcibly rotationally driven from the outside without energizing the coil and the rise phase difference between the signal output from the rotation angle sensor and the electric motor. It is set based on the amount of advance when the motor no-load rotation speed, which is the rotation speed during no-load, reaches its maximum.

Claims

an engagement state between the first transmission portion (61) and the second transmission portion (62) that are capable of relative rotation, allowing transmission of torque between the first transmission portion and the second transmission portion; A clutch actuator (10) used in a clutch device (1) provided with a clutch (70) that changes between a disengaged state and a disengaged state for interrupting torque transmission between said first transmission section and said second transmission section. A control device for controlling
The clutch actuator is
a housing (12);
It has a stator (21) provided in the housing, a coil (22) provided in the stator, and a rotor (23) rotatable relative to the stator, and is capable of outputting torque from the rotor when energized. an electric motor (20);
a rotary translation unit (2) capable of converting rotary motion due to torque from the electric motor into translational motion and changing the state of the clutch to an engaged state or a non-engaged state;
The control device is
an energization control unit (110) that controls energization of the electric motor;
A storage unit (130) that stores a predetermined advance angle amount,
Among the operation regions of the clutch actuator, a region where the load applied from the clutch side to the rotational translational portion is equal to or less than a predetermined value is referred to as a "low load load region", and the load acting from the clutch side to the rotational translational portion is defined as a "low load load region". When the area where the load is greater than the predetermined value is defined as the "high load area",
The energization control unit is
advancing the electric motor based on the predetermined advance amount at least when the load is in the low load region ;
the electric motor is a brushless direct current motor and has magnets (230) mounted on the rotor;
The clutch actuator has a rotation angle sensor (170) capable of outputting a signal based on the magnetic flux of the magnet,
a rotation angle of the rotor can be detected based on a signal from the rotation angle sensor;
The predetermined advance angle amount is the rising phase difference between the induced voltage generated in the coil when the rotor is forcibly rotationally driven from the outside without energizing the coil and the signal output from the rotation angle sensor. and an advance angle amount when the motor no-load rotation speed, which is the no-load rotation speed of the electric motor, reaches a maximum.

The advance amount at which the motor no-load rotation speed, which is the rotation speed of the electric motor under no load, reaches a maximum is the electric current from the neutral advance angle, which is a position 30 degrees in electrical angle after the rise of the induced voltage. 2. The control device according to claim 1, wherein the angular lead is an angle advance.

The energization control unit is
the predetermined amount of advance can be changed to a first amount of advance or a second amount of advance that is different from the first amount of advance;
advancing the electric motor based on the first advance amount in at least the low load area of the operating area of the clutch actuator;
3. The control device according to claim 1, wherein in at least part of the high load region, the electric motor is controlled to advance based on the second advance amount.

4. The control device according to claim 3 , wherein said first advance angle amount is larger than said second advance angle amount.

5. The control device according to claim 3 , wherein the energization control unit sets the first advance angle amount to 30 to 90 degrees and controls the advance angle of the electric motor.

The control device according to any one of claims 3 to 5 , wherein the energization control unit sets the second advance amount to 0° to advance angle control of the electric motor.

7. The energization control unit according to any one of claims 3 to 6 , wherein the predetermined advance amount is changed to the first advance amount or the second advance amount based on the translational displacement of the rotation/translation unit. Control device as described.

7. The energization control unit according to any one of claims 3 to 6 , wherein the predetermined advance amount is changed to the first advance amount or the second advance amount based on the rotation angle of the rotor. Control device.

The energization control unit changes the predetermined advance angle amount to the first advance amount or the second advance amount based on either the current supplied to the electric motor or the rotation speed of the rotor. A control device according to any one of claims 3 to 6 .

The control device according to any one of claims 1 to 9 , wherein the energization control section controls the energization of the electric motor by 120° rectangular wave energization.

The low-load load region is a region corresponding to a "backlash reduction section" until the rotary translation portion or the pressing portion (81) connected to the rotary translation portion contacts the clutch,
The control device according to any one of claims 1 to 10 , wherein the high load region is a region corresponding to a "pressing force control section" when the rotary translation section or the pressing section presses the clutch. .

A method for manufacturing a control device (100) according to any one of claims 1 to 11,
a measurement step of measuring an induced voltage generated in the coil and a signal from the rotation angle sensor while forcibly rotating the rotor from the outside;
an advance-angle amount calculation step of calculating an advance-angle amount that satisfies a predetermined condition as the predetermined advance-angle amount based on the induced voltage measured in the measurement step and the rising phase difference of the signal from the rotation angle sensor;
A method of manufacturing a control device comprising:

The control device and the clutch actuator are integrally provided,
an advance-angle amount storage step of storing the predetermined advance-angle amount calculated in the advance-angle amount calculation step in the storage unit;
13. The method of manufacturing a control device according to claim 12, further comprising:

The control device and the clutch actuator are provided separately,
Affixing a first storage medium for storing information on the predetermined advance angle amount calculated in the advance amount calculation step in a first storage medium (201) and attaching or stamping the first storage medium to the clutch actuator. stamping process,
13. The method of manufacturing a control device according to claim 12, further comprising:

an advance angle amount storage step of storing the predetermined advance angle amount in the storage unit based on the information stored in the first storage medium in the step of stamping on the first storage medium;
15. The method of manufacturing a control device according to claim 14, further comprising:

The information stored in the first storage medium in the first storage medium pasting/stamping step is stored in a second storage medium (202), and the second storage is stored in the transmission (8) in which the clutch actuator is mounted. a second storage medium pasting/stamping step of sticking or stamping a medium;
an advance angle amount storage step of storing the predetermined advance angle amount in the storage unit based on the information stored in the second storage medium in the step of stamping on the second storage medium;
15. The method of manufacturing a control device according to claim 14, further comprising: