JP2006262622A - Method for adjusting installation of rotary sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To install a rotary sensor for detecting the rotational position of a main rotor in a dynamo-electric machine so that output errors are reduced, extending over the entire rotating electrical angle. <P>SOLUTION: A resolver 18 is fixed temporarily to a housing 24 (step S1). DC is applied to the two phases of a stator, the phase to be energized and the energization direction are changed, and rotation is made so that the main rotor 14 is set to a prescribed rotational position θR<SB>1</SB>for restraint (step S3). When the main rotor 14 has been restrained, a detection angle θ, that is the output data of the resolver 18, is read (step S4), and an error ε<SB>I</SB>, between a theoretical value and the detection angle, is calculated for each prescribed rotational position θR<SB>1</SB>(step S7). The average value εa of the error ε<SB>I</SB>is obtained (step S8). The temporary fixation is canceled (step S9), the resolver 18 is rotated by the average valueεa to the housing 24 (step S10), and then the resolver 18 is fixed again (step S11). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rotation sensor mounting adjustment method for adjusting a mounting angle of a rotation sensor with respect to a rotating electric machine unit having a rotation electric machine including a stator and a rotor and a rotation sensor that detects a rotation position of the rotor.

  For example, some electric power steering systems for vehicles are provided with a rotating electrical machine as a motor and a rotation sensor for grasping the rotational position (or rotational angle) of a main rotor of the rotating electrical machine. Examples of this type of rotation sensor include a resolver including an eccentric detection rotor fixed to a main rotor, and a detection stator arranged concentrically around the detection rotor. In the resolver, a reference AC voltage is applied to the excitation coil in the stator, and a voltage indicating a phase difference corresponding to the rotational position of the detection rotor is induced in a predetermined output coil and output. When controlling the rotating electrical machine, since it is desired that the resolver outputs an appropriate voltage with respect to the rotational position of the main rotor, it is necessary to assemble the resolver with considerably high accuracy.

  As a method of assembling the rotation sensor with high accuracy, after energizing a predetermined set of phases in the stator of the rotating electrical machine, the main rotor is rotated by a predetermined angle or more by energizing a combination of phases different from the phases. A device that adjusts the rotational position of the resolver by referring to the output of the resolver while restraining is proposed (for example, see Patent Document 1). According to this method, the main rotor can be accurately stopped at a predetermined angle without being affected by the frictional force, and the positioning of the resolver can be accurately adjusted.

JP 2004-72894 A

  By the way, a resolver may have some dispersion | variation in linearity for every product resulting from dispersion | variation in the shape of a detection rotor, the coil length of a detection stator, etc. FIG. However, in the method described in Patent Document 1, the output of the resolver is appropriate only at a predetermined adjustment angle (for example, one location of the zero cross point with the induced voltage) in one electrical angle cycle of the main rotor. It is adjusted so that Therefore, when one cycle of electrical angle is determined as a whole, the output of the resolver is not always appropriate, and there is a concern that an error may increase at a place other than the adjustment angle. If the rotating electrical machine and resolver are attached to the electric power steering when such a large error occurs, there will be a difference in the characteristics of the rotating electrical machine during forward and reverse rotation of the handle, and assist when turning right or left. There are concerns that the feeling is different.

  The present invention has been made in consideration of such a problem, and is provided with a rotation sensor for mounting a rotation sensor for detecting a rotation position of a rotor of a rotating electrical machine so that an output error is reduced over the entire rotating electrical angle. The purpose is to provide an adjustment method.

  In the rotation sensor mounting adjustment method according to the present invention, a rotating electrical machine including a stator and a rotor, a rotation sensor for detecting a rotation position where a detection shaft is integrated with the rotor, and a main body of the stator and the rotation sensor are fixed. In a rotation sensor mounting adjustment method for adjusting a mounting angle of the rotation sensor with respect to a rotating electrical machine unit having a housing, at least two phases of the stator with the rotation sensor fixed to the housing for the first time. A constraining step in which at least one of a phase to be energized, at least one of a phase to be energized, an energizing amount, and a direction of energization is changed, and the rotor is sequentially rotated so as to be in a predetermined rotational position and constrained. A reading step of reading the output data of the rotation sensor when restrained, and the predetermined rotation position for each predetermined rotation position; An error calculating step of calculating an error between the theoretical position data and the output data of the rotation sensor; an error average calculating step of calculating an average value of the error; and the first fixing is released; And a second fixing step after the rotation by the average value.

  In this way, the rotor is sequentially rotated so as to be in a predetermined rotational position, an error is calculated for each predetermined rotational position, and the rotation sensor is rotated by an average value of the error, thereby rotating the entire rotational electrical angle. Output error is reduced. The housing has a broad meaning indicating a member to which the stator and the rotation sensor are attached.

  In this case, the rotating electrical machine is a three-phase type, and in the restraining step, the predetermined rotational position is set to 60 ° by passing a direct current through the two phases of the stator and changing the energized phase and energizing direction. When the number of times is restricted, it is preferable from the balance between the accuracy of the mounting adjustment and the number of steps.

  Further, the rotating electrical machine is a three-phase type, and in the restraining step, a direct current is passed between the three phases of the stator at a ratio of 2: 1: 1, and the predetermined rotation is performed by changing the energized phase and the energizing direction. If the position is 30 ° and the restraint is performed 12 times, the attachment adjustment is performed with higher accuracy.

  According to the rotation sensor mounting adjustment method according to the present invention, the rotor is sequentially rotated so as to be in a predetermined rotation position, an error for each predetermined rotation position is calculated, and the rotation sensor is rotated by an average value of the error. The output error is reduced over the entire rotating electrical angle.

  Hereinafter, the rotation sensor mounting adjustment method according to the present invention will be described with reference to FIGS. The rotation sensor attachment adjustment method according to the present embodiment is applied to the rotating electrical machine unit 10 shown in FIGS. 1 and 2, and is performed using the adjustment device 100 shown in FIG.

  As shown in FIGS. 1 and 2, the rotating electrical machine unit 10 includes a three-phase rotating electrical machine 16 including a stator 12 and a rotor 14, and a resolver (rotation sensor) that detects the rotational position (or rotational angle) of the rotor 14. 18 and a housing 24 to which the main body 22 of the stator 12 and the resolver 18 is fixed. In order to distinguish from the detection rotor 42 of the resolver 18 to be described later, the rotor 14 is hereinafter referred to as the main rotor 14.

  The housing 24 includes a cylindrical casing 26 having a bottomed shape on one side and an assembly flange 28 provided on the other side of the casing 26, and the casing 26 is fixed to the flange 28. Bearings 30 a and 30 b are provided on the bottom 26 a and the flange 28 of the casing 26. The main rotor 14 is rotatably supported by bearings 30 a and 30 b and extends from the bottomed portion of the casing 26 to the end of the flange 28. The housing 24 does not necessarily have such a shape, and may be a mounted member to which the stator 12 and the main body 22 of the resolver 18 are fixed.

  A plurality of magnets 32 are attached to the main rotor 14 between the bearings 30a and 30b. The stator 12 is press-fitted into the inner peripheral portion of the casing 26, and a narrow gap is formed in which magnetic force is transmitted to the magnet 32. Conductive wire ends of the U, V, and W phase coils 34 provided on the stator 12 are connected to external conductive wires 38a, 38b, and 38c via terminal blocks 36a, 36b, and 36c of the flange 28. With such a configuration, the rotating electrical machine 16 rotates as a motor by energizing the external conductors 38a, 38b, 38c with a three-phase alternating current, and conversely, the rotating electrical machine 16 acts as a generator by rotating the main rotor 14. To do. At the end of the main rotor 14, a connector 40 with another rotating shaft (for example, a vehicle handle shaft) is provided.

  The resolver 18 has a main body 22 and a detection rotor (detection shaft) 42. The main body 22 is provided with a detection stator 52 described later. The main body 22 is fixed so as to be integrated with the plate 43 at the end face, and is fixed to the flange 28 via the plate 43. The detection rotor 42 is a cylindrical shape having an outer peripheral eccentric shape, and is fixed so as to be integrated with the main rotor 14 between the bearing 30 b and the coupling tool 40. The inner peripheral portion 22a of the main body 22 is concentric with the main rotor 14, and surrounds the outer periphery of the detection rotor 42 with a gap. That is, since the detection rotor 42 has an outer peripheral eccentric shape, the gap between the detection rotor 42 and the inner peripheral portion 22a differs depending on the angle.

  The plate 43 integrated with the main body 22 is provided with two mounting adjustment holes 46a and 46b into which the bolts 44 are inserted at symmetrical positions with respect to the main rotor 14 when viewed from the front (see FIG. 1). The bolt 44 is fixed by being screwed into the screw hole 48 of the flange 28. The mounting adjustment holes 46a and 46b are elongated in the circumferential direction (in the direction of arrow A). By loosening the bolts 44, the bolts 44 can move within the mounting adjustment holes 46a and 46b. And the angle of the plate 43 can vary. The main body 22 can rotate in an accurate circumferential direction around the main rotor 14 while sliding with respect to the inner peripheral surface 28a of the flange 28 in a state where the bolts 44 are loosened. On a part of the outer periphery of the plate 43, a scale 51 (for example, a vernier scale) for confirming a relative mounting angle with respect to the housing 24 is provided. The scale 51 may have a structure that can be attached to and detached from the plate 43 and the housing 24.

  As shown in FIG. 3, the main body 22 of the resolver 18 is provided with a detection stator 52 that surrounds the detection rotor 42, and the opposing portions of the plurality of teeth 52 a of the detection stator 52 are directly connected in reverse phase. A pair of exciting coils 54 and 56 are provided so that Further, the teeth 52a are provided with output coils 58 each having an end connected to form an output circuit 60. When the main rotor 14 is rotated in a state where AC voltages of sinusoidal waves (sin (t) and cos (t)) whose phases are shifted by 90 ° are applied to the excitation coils 54 and 56, respectively, the detection rotor 42 and the teeth 52a When the gap changes, an induced voltage V = (K · sin (t−δ)) corresponding to the actual rotational position θR is generated in the output circuit 60 on the same principle as the transformer coupling. Here, K is a proportionality constant, and δ is a phase difference. This induced voltage V is supplied to the adjusting device 100.

  As shown in FIG. 4, the adjustment apparatus 100 is configured to perform a microcomputer 102 that performs overall control, a decoder unit 104 that obtains a detection angle θ based on the induced voltage V, and a selected phase of the rotating electrical machine unit 10. A bridge circuit 106 that supplies a direct current, an interface unit 108 that exchanges data with the microcomputer 102, and a constant current source 109 that supplies a direct current to the bridge circuit 106 are included. The microcomputer 102, the decoder unit 104, and the interface unit 108 are supplied with power from the constant voltage source 110. The microcomputer 102 can exchange various data related to the adjustment of the rotating electrical machine unit 10 with the external computer 112.

  The decoder unit 104 obtains the phase difference δ by comparing and counting the induced voltage V and the voltage applied to the exciting coils 54 and 56, and obtains the detection angle θ of the detection rotor 42 from the phase difference δ. Supply. The decoder unit 104 is structurally incorporated in the adjustment device 100 but is an essential component of the resolver 18 and can be substantially regarded as a part of the resolver 18, and the detection angle θ is used as output data of the resolver 18. Is done.

  The interface unit 108 includes an operation unit 108a for an inspector to perform a predetermined instruction operation, and a display unit 108b for displaying various data related to the adjustment process. The adjusting device 100 is connected to the external conductors 38 a, 38 b, 38 c of the rotating electrical machine unit 10 and the plurality of resolver control wires 39 via the connector 113.

  The bridge circuit 106 is provided with six semiconductor relays 114a to 114f that are controlled to be turned on / off by the microcomputer 102. The DC constant current (hereinafter referred to as 20A) supplied from the constant current source 109 is rotated. It has a function of energizing at least two phases of the electric machine 16 and changing the energized phase, the energization amount, and the energization direction. That is, three sets of semiconductor relays 114a and 114b, semiconductor relays 114c and 114d, and semiconductor relays 114e and 114f are inserted in series between the plus line 109a and the minus line 109b of the constant current source 109. External conducting wires 38a, 38b, and 38c corresponding to the U, V, and W phases of the rotating electrical machine 16 are connected to the series connection point. Examples of the semiconductor relays 114a to 114f include IGBTs (Insulated Gate Bipolar Transistors) or thyristors.

  In the bridge circuit 106, for example, by turning on only the semiconductor relays 114a and 114d and turning off the others, a current of 20 A is supplied from the U phase to the V phase. Further, by turning on only the semiconductor relays 114c and 114b and turning off the others, a current of 20 A is supplied from the V phase to the U phase. Further, by turning on only the semiconductor relays 114a, 114d, and 114f and turning off the others, a current of 20A is supplied from the U phase, and a feedback current of 10A is supplied from the V phase and the W phase, respectively. A current is applied at a ratio of: 1.

  By the way, the rotating electrical machine 16 is constrained at a different angle by 60 ° as a general characteristic of the multi-phase rotating electrical machine by passing a direct current through two phases of the stator 12 and changing the energized phase and the energizing direction. . That is, the main rotor 14 of the rotating electrical machine 16 can be fixed six times at different angles by 60 ° under the action of the bridge circuit 106.

  Further, the rotating electrical machine 16 is constrained at different angles by 30 ° by passing a direct current between the three phases of the stator 12 at a ratio of 2: 1: 1 and changing the energized phase and energizing direction. The rotor 14 can be fixed 12 times at different angles by 30 °.

The microcomputer 102 includes a bridge control unit 102a for controlling the semiconductor relay 114a~114f of the bridge circuit 106, when the main rotor 14 is restrained, obtained from the resolver 18 with respect to the theoretical position data indicating a predetermined rotational position .theta.R _I an error calculating unit 102b that calculates the error epsilon detection angle theta, the error average calculation unit 102c for obtaining an average value εa error epsilon _I for each predetermined rotational position .theta.R _I, a current source for on-off control of the constant current source 109 And a control unit 102d. Here, the subscript _I of the predetermined rotational position θR _I and the error ε _I is a numerical value corresponding to a rotational position counter I (I = 0 to 5) described later, and the predetermined rotational position θR _I is θR _I = θ × 60. Expressed as ° + 30 °.

  Next, a method of adjusting the mounting direction of the resolver 18 of the rotating electrical machine unit 10 using the adjusting device 100 configured as described above will be described with reference to FIG.

  First, in step S1, the bolts 44 are inserted into the mounting adjustment holes 46a and 46b, respectively, and screwed into the screw holes 48, and the main body 22 and the plate 43 of the resolver 18 are temporarily fixed to the flange 28 (first fixing). ) Further, the adjustment device 100 and the rotating electrical machine unit 10 to be adjusted are joined by the connector 113. At this time, the constant current source 109 is off.

  In step S2, a rotational position counter I that is a control parameter for intermittently rotating the main rotor 14 is initialized as I ← 0.

In step S3 (restraining step), the constant current source 109 is turned on, and direct current is applied to two of the three phases of the stator 12 under the action of the bridge controller 102a. phase is, the main rotor 14 is constrained to rotate to a predetermined rotational position .theta.R _I by changing the current direction.

Specifically, when the rotational position counter I is I = 0, the main rotor 14 is constrained to a position of 30 ° by energizing from the W phase to the U phase. When I = 1, the main rotor 14 is constrained to a 90 ° position by energizing from the W phase toward the U phase. When I = 2, the main rotor 14 is constrained to a position of 150 ° by energizing from the W phase toward the U phase. When I = 3, the main rotor 14 is constrained to a position of 210 ° by energizing from the W phase to the U phase. When I = 4, the main rotor 14 is constrained to a position of 270 ° by energizing from the W phase toward the U phase. When I = 5, the main rotor 14 is constrained to a position of 330 ° by energizing from the W phase to the U phase. The detection angle θ and the predetermined rotational position θR _I may be based on the angle of the main rotor 14 when the sine wave alternating current applied to the U phase during three-phase alternating current energization is zero. As described above, direct current energization for the two phases is performed by selectively turning on any two of the semiconductor relays 114a to 114f.

In step S4, under the action of the decoder unit 104, the detection angle θ is obtained in correspondence with the angle of the detection rotor 42 at that time, and the detection angle θ is recorded in a predetermined storage unit in correspondence with the predetermined rotational position θR _I. To do. Of course, the detection angle θ indicates the rotational position of the main rotor 14 integrated with the detection rotor 42.

  In step S5, the rotational position counter I is checked. If I = 5, the constant current source 109 is turned off and the measurement is terminated and the process proceeds to step S7. If I <5, I ← I + 1 is incremented. After (step S6), the process returns to step S3 to continue the restraint process and the process of reading the detected angle θ.

In step S7 (error calculation step), respectively obtained error epsilon _I of the predetermined rotational position .theta.R _I corresponding to the detected angle θ recorded in the storage unit 6 with respect to the predetermined rotational position .theta.R _I.

At step S8 (error average calculation step), with the average value .epsilon.a of each error epsilon _I six for a predetermined rotational position .theta.R _I, is displayed on the display section 108b of the average value .epsilon.a. At this time, the average value εa is displayed together with a plus sign or a minus sign.

  In step S <b> 9, the bolts 44 are loosened so that the main body 22 and the plate 43 can rotate with respect to the flange 28.

  In step S10, the main body 22 and the plate 43 are rotated by the average value εa in the rotation direction corresponding to the plus sign or minus sign shown on the display unit 108b (for example, the plus sign is clockwise). The plate 43 rotates within a range in which the bolt 44 can move within the mounting adjustment holes 46a and 46b, which are long holes. In practice, however, the mounting adjustment holes 46a and 46b take into account variations in the linearity of the resolver 18. It is set to a sufficient length. Further, the rotation amount of the main body 22 and the plate 43 may be rotated while checking the scale 51.

  In step S11 (fixing step), the bolt 44 is tightened into the screw hole, and the main body 22 and the plate 43 of the resolver 18 are re-fixed to the flange 28 of the housing 24 (second fixing). This completes the adjustment of the mounting direction.

  Next, the error average calculation, the rotation of the main body 22 and the plate 43, and the fixing process in steps S8 to S10 will be described with reference to FIG.

  The detected angle θ obtained by the resolver 18 at the time of temporary fixing does not completely coincide with the actual rotational position θR of the main rotor 14, for example, coincides at the reference point P where the electrical angle is 0 as shown in FIG. However, a substantially S-shaped curve is drawn up to about 180 °, which is larger than the actual rotational position θR, and smaller than the actual rotational position θR in a range of about 180 ° or more.

  For convenience of explanation, ε0 to ε5 at the time of temporary fixing are shown in order from the top in the “at the time of temporary fixing” column in FIG. 7, 11.0 °, 13.0 °, 8.0 °, −12.0 °, -16.0 ° and -13.0 °. In practice, the value is smaller than this.

  In this case, in correspondence with FIG. 6, the area of the portion 120 where the detection angle θ is larger than the actual rotational position θR is smaller than the area of the portion 124 which is lower, and in this case when mounted on the electric power steering There is a concern that the assist feeling is different between turning right and turning left.

  On the other hand, as shown in FIG. 7, in the present embodiment, the average value εa is obtained as “−1.5 °” from the total value “−9.0 °” of ε0 to ε5, and this value is displayed on the display unit 108b ( (See FIG. 4). Further, the main body 22 and the plate 43 are rotated by 1.5 ° in the plus direction opposite to the reference sign while the bolts 44 are loosened, and then re-fixed. Therefore, as shown in the “at the time of re-fixation” column in FIG. 7, ε0 to ε5 are respectively 1.5 ° smaller than those at the time of temporary fixation, and 12.5 °, 14.5 °, and 9. 5 °, −10.5 °, −14.5 °, and −11.5 °, and the total value and the average value εa are 0.0 °.

  As a result, as shown in FIG. 8, the detection angle θ is shifted upward by 1.5 ° as a whole, and the total area of the portions 126 and 128 where the detection angle θ exceeds the actual rotational position θR The area of the lower portion 130 becomes equal. Therefore, an assist feeling can be obtained satisfactorily when mounted on the electric power steering.

That is, according to the rotation sensor mounting adjustment method according to the present embodiment, the sequence is rotated so that the main rotor 14 has a predetermined rotational position .theta.R _I, calculates an error epsilon _I for each predetermined rotational position .theta.R _I, the by rotating the body 22 and plate 43 of only the resolver 18 average εa error epsilon _I, output error throughout the rotation electric angle is reduced. In the present embodiment, the main body 22 is rotated so that the average value εa becomes 0. However, this makes it possible to evaluate based on an evaluation function other than the average value εa (for example, the square sum average). Results are obtained.

Also, in order to perform six measuring a predetermined rotational position .theta.R _I as each 60 °, for example as compared with the case of 3 times it is preferred to improve the accuracy of the mounting adjustment. Further, under the action of the bridge circuit 106, direct current is passed between the three phases of the stator 12 at a ratio of 2: 1: 1, and by changing the energized phase and energizing direction, the predetermined rotational position θR _{I is set} to 30 ° and 12 times. When restraining is performed, the number of measurement points is doubled, and mounting adjustment is performed with higher accuracy. Further, the number of times of restraint and measurement of 6 times and 12 times is a reasonably small man-hour that can be practically used, which is preferable.

  The application that uses the rotating electrical machine unit 10 adjusted in this way can use the output signal supplied from the resolver 18 as it is without offset correction. Further, initial adjustment or the like with the application is not required when the rotating electrical machine unit 10 is assembled.

  Next, an adjustment assisting device 200 used in a modification of the rotation sensor attachment adjusting method according to the present embodiment will be described with reference to FIG.

  As shown in FIG. 9, the adjustment assisting device 200 includes a base plate 202 fixed using a predetermined mounting hole 28 b of the flange 28 in the rotating electrical machine unit 10, and an adjustment stepping motor 204 fixed on the base plate 202. And a worm gear 206 and a wheel gear 208 that meshes with the worm gear 206. The worm gear 206 is rotated by the adjustment stepping motor 204 to rotate the wheel gear 208 in a driven manner. The wheel gear 208 is engaged with a predetermined protrusion 43 a on the plate 43 of the resolver 18, and the main body 22 and the plate 43 are rotated around the main rotor 14 by the rotation of the worm gear 206. In addition, a motor control unit that drives the adjustment stepping motor 204 in a pulse is provided in the adjustment device 100.

  When such an adjustment assisting device 200 is used, in the temporary fixing step in step S1, the plate 43 is temporarily fixed by engaging the wheel gear 208 with the protrusion 43a and meshing with the worm gear 206, and the bolt 44 is Loosen enough. Further, the step of loosening the bolt 44 corresponding to step S9 is not necessary.

  Further, in the processing in step S10, the rotation of the main body 22 and the plate 43 is automatically performed by recognizing the average value εa by the motor control unit and rotating the adjustment stepping motor 204 by an amount corresponding to the average value εa. The adjustment operation is further simplified.

  In the above description, the example in which the detection rotor 42 of the resolver 18 is directly attached to the main rotor 14 of the rotating electrical machine 16 has been described. However, the place where the detection rotor 42 is attached is attached to the main rotor 14. The rotating shafts to be interlocked may be portions that are substantially identified with the main rotor 14, and may be attached to the rotating shafts decelerated by a speed reducer built in the rotating electrical machine, for example. The sensor for detecting the rotational position is not limited to the resolver 18 but can be applied to a potentiometer, an encoder, and the like.

  Further, the rotation range of the main rotor 14 in actual use is not limited to 0 to 360 °. For example, a plurality of rotations may be measured according to the rotation of the handle. In this case, a predetermined integration process may be performed on the signal from the resolver 18 to recognize an angle of 360 ° or more or 0 ° or less. The rotating electrical machine 16 is not limited to a three-phase type and may be a multi-phase type.

  Of course, the rotation sensor mounting adjustment method according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.

It is a front view of a rotary electric machine unit. It is a cross-sectional side view of the rotary electric machine unit of II-II view in FIG. It is a schematic block diagram which shows the operation principle of a resolver. It is a block block diagram of an adjustment apparatus. It is a flowchart which shows the procedure of the rotation sensor attachment adjustment method which concerns on this Embodiment. It is a graph which shows the detection angle of the resolver at the time of temporarily fixing. It is a table | surface of the error for every predetermined rotation position at the time of temporary fixation and the time of re-fixation. It is a graph which shows the detection angle of the resolver at the time of re-fixing. It is a front view of a rotary electric machine unit and an adjustment auxiliary device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Rotating electrical machine unit 12 ... Stator 14 ... Main rotor 16 ... Rotating electrical machine 18 ... Resolver 22 ... Main body (detection stator)
24 ... Housing 42 ... Detection rotor (detection shaft)
43 ... plate 46a, 46b ... mounted adjustment hole 100 ... regulator 104 ... decoder 106 ... bridge circuit 114a to 114f ... semiconductor relay theta ... detected angle (output data) .theta.R ... actual rotational position .theta.R _I ... predetermined rotational position (theoretical data ) Εa… Average value ε _I … Error

Claims (3)

For a rotating electrical machine unit including a rotating electrical machine including a stator and a rotor, a rotation sensor that detects a rotational position in which a detection shaft is integrated with the rotor, and a housing in which a main body of the stator and the rotational sensor is fixed. In the rotation sensor mounting adjustment method for adjusting the mounting angle of the rotation sensor,
With the rotation sensor fixed to the housing for the first time, direct current is applied to at least two phases of the stator, and at least one of the energized phase, the energization amount, and the energization direction is changed, and the rotor is A constraining step of sequentially rotating and constraining to a predetermined rotational position;
A reading step of reading output data of the rotation sensor when the rotor is restricted by the restriction step;
An error calculating step of calculating an error between theoretical position data indicating the predetermined rotation position and output data of the rotation sensor for each predetermined rotation position;
An error average calculating step for obtaining an average value of the errors;
A fixing step of releasing the first time fixing and fixing the second time after rotating the rotation sensor with respect to the housing by the average value;
A rotation sensor mounting adjustment method characterized by comprising: In the rotation sensor mounting adjustment method according to claim 1,
The rotating electrical machine is a three-phase type,
In the restraint step, a direct current is applied to two phases of the stator, and the predetermined rotational position is set to 60 ° by changing the energized phase and the energization direction, and the restraint is performed six times. Adjustment method. In the rotation sensor mounting adjustment method according to claim 1,
The rotating electrical machine is a three-phase type,
In the constraining step, direct current is passed between the three phases of the stator at a ratio of 2: 1: 1, and the predetermined rotational position is set to 30 ° by changing the energized phase and the energizing direction, and the restraint is performed 12 times. And a rotation sensor mounting adjustment method.

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