WO2022244084A1 - モータの制御方法及びモータの制御装置 - Google Patents
モータの制御方法及びモータの制御装置 Download PDFInfo
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- WO2022244084A1 WO2022244084A1 PCT/JP2021/018691 JP2021018691W WO2022244084A1 WO 2022244084 A1 WO2022244084 A1 WO 2022244084A1 JP 2021018691 W JP2021018691 W JP 2021018691W WO 2022244084 A1 WO2022244084 A1 WO 2022244084A1
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 184
- 239000000498 cooling water Substances 0.000 claims abstract description 38
- 238000012937 correction Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 16
- 238000012360 testing method Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000012546 transfer Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/64—Controlling or determining the temperature of the winding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
Definitions
- the present invention relates to a motor control method and a motor control device.
- a rotating electric machine has a plurality of phases of U, V, and W, and windings corresponding to each of these phases are provided.
- the motor rotates by supplying current to the windings of each phase.
- the windings generate heat when current flows through them.
- the current concentrates in a specific phase winding (for example, the U phase). may generate more heat. If the amount of heat generated by the windings becomes extremely large, the insulating members of the windings may deteriorate, so it is necessary to control to avoid this.
- JP2012-228131A the current value and coil temperature of the motor when the motor is locked are obtained, the lockable time is calculated, and if the lock is not released within the lockable time, current concentration occurs.
- a drive control system for a rotating electric machine is disclosed that performs current concentration suppression processing for causing current to flow to phases other than the first phase.
- the present invention has been made in view of such problems, and it is an object of the present invention to provide a motor control method capable of suppressing the amount of heat generated by the windings when the motor is locked.
- the motor includes a winding temperature detector that detects the temperature of the windings, a cooling water temperature detector that detects the temperature of the cooling water, a rotation detector that detects the rotation of the motor, and an input power that is input to the motor. and an input power estimator for estimating.
- This control method includes an estimating step of calculating an estimated maximum temperature of a winding having the highest temperature among a plurality of phase windings based on input power when the motor is in a locked state; a correction step of calculating an offset value based on the temperature of the winding and the temperature of the cooling water, correcting the corrected estimated maximum temperature based on the temperature of the winding and the offset value; , and a control step for controlling the input power.
- the offset value is calculated based on the temperature of the winding and the temperature of the cooling water, and the estimated maximum temperature of the winding is corrected by this offset value.
- a value can be used to control the input power of the motor. As a result, even in the motor lock state, the amount of heat generated by the windings is suppressed, and the torque command for the motor is less likely to be restricted.
- FIG. 1 is an explanatory diagram of a motor control system according to an embodiment of the present invention.
- FIG. 2 is a configuration diagram of the motor control device.
- FIG. 3 is a detailed configuration diagram of the winding temperature estimator.
- FIG. 4 is an explanatory diagram of the torque limit rate.
- FIG. 5 is an explanatory diagram of offset values.
- FIG. 6 is an explanatory diagram of the estimated maximum temperature when the motor is locked.
- FIG. 7 is a configuration diagram of the motor.
- FIG. 1 is an explanatory diagram of the motor control system 100 of this embodiment
- FIG. 2 is a configuration diagram of the motor control device 1. As shown in FIG.
- a motor control system 100 includes a motor control device 1 and a rotating electrical machine (motor) 2 .
- the motor control system 100 is mounted on, for example, an electric vehicle and used as a drive source for the electric vehicle.
- the motor control device 1 calculates a command value for driving the motor 2 based on a torque command value T * from a host controller (not shown), the number of rotations of the motor 2, and the temperature of the windings, and based on this command value, to output power to be supplied to the stator windings of the motor 2 .
- the motor 2 is configured as a synchronous motor with windings of a plurality of phases (eg, three phases of U, V, and W phases).
- the motor 2 has a water jacket 21 and is cooled by cooling water flowing through the water jacket 21 .
- the motor 2 is provided with a winding temperature sensor 22 for detecting the winding temperature Tm of the motor 2 and a cooling water temperature sensor 23 for detecting the cooling water temperature Tw of the water jacket 21 .
- the motor 2 may experience a so-called motor lock state in which the motor 2 tries to generate torque while the rotation of the motor 2 is stopped or at an extremely low speed.
- the current concentrates in a specific phase winding, which may increase the amount of heat generated in that winding.
- the motor 2 is provided with the winding temperature sensor 22 for detecting the winding temperature Tm, but the winding temperature sensor 22 cannot necessarily detect the highest winding temperature.
- the motor 2 could not always be properly controlled based on the temperature of the windings.
- an offset value which will be described later, is used to estimate a temperature with a small deviation from the actual winding temperature.
- FIG. 2 is a configuration block diagram of the motor control device 1. As shown in FIG.
- the motor control device 1 has a microcomputer including a CPU, a storage device, etc.
- the functions of each part shown in FIG. 2 are realized by the CPU executing a program recorded in the storage device.
- motor control device 1 shown in FIG. 2 may be housed in the same housing, or a battery 10 and an inverter 11, which will be described later, are housed in different housings, and these are electrically connected by a harness or the like. may be
- the motor control device 1 has a configuration for mainly performing calculations, including a low rotation region determination unit 3, a winding temperature estimation unit 4, a limit rate calculation unit 5, a torque command value calculation unit 6, a torque control unit 7, a dq axis-UVW A phase conversion unit 8, a PWM conversion unit 9, a UVW phase-dq axis conversion unit 13, and a rotation speed calculation unit 15 are provided.
- the motor control device 1 includes a battery 10 and an inverter 11 as components mainly related to power supply to the motor 2 .
- the motor control device 1 also includes a voltage sensor 10V, a current sensor 12, a rotor position sensor 14, a winding temperature sensor 22, and a cooling water temperature sensor 23 as various sensors.
- the low rotation area determination unit 3 determines whether the motor 2 is in the low rotation area or the high rotation area based on the number of rotations of the motor 2 . More specifically, the low rotation region determination unit 3 acquires the detected rotation speed value N of the motor 2 calculated by the rotation speed calculation unit 15, compares the acquired detected rotation speed value N with the determination threshold value, and determines the current It is determined whether the motor 2 is in the low rotation area or the high rotation area.
- the determination threshold is a value that can determine whether or not the motor 2 is in the locked state, and is set to, for example, 0 to several tens of rpm.
- the winding temperature estimator 4 calculates the estimated maximum temperature Test of the windings of the motor 2 based on the driving state of the motor 2 .
- the estimated maximum temperature Test is an estimated maximum temperature of the winding having the highest temperature among the plurality of windings, and is calculated so as to be higher than the actual maximum temperature of the winding.
- the winding temperature estimator 4 calculates the highest winding temperature based on the d-axis current estimation value id_est , the q-axis current estimation value iq_est , the rotation speed detection value N, the winding temperature Tm, and the cooling water temperature Tw. , and outputs it to the limit rate calculator 5 . Details of the operation of the winding temperature estimator 4 will be described later with reference to FIG.
- the limit rate calculator 5 calculates a torque limit rate R lim used to limit the driving torque of the motor 2 based on the estimated maximum temperature Test .
- the limit rate calculator 5 calculates the torque limit rate R lim with reference to the graph shown in FIG. 4 according to the estimated maximum temperature Test estimated by the winding temperature estimator 4 .
- the torque limit rate R lim is an instruction value (100 fraction) that determines how much the torque is limited with respect to the torque command value T * , and is the estimated maximum temperature Test calculated by the winding temperature estimator 4. It is a value that varies from no limit (R100: 100%) to a maximum rate of adjustment (R min : 50%, for example) depending on the value.
- FIG. 4 is a graph used for calculating the torque limit rate R lim , which is stored in the limit rate calculator 5 in advance.
- the torque limit rate R lim is a torque limit lower limit value that is the maximum limit rate for suppressing insulation deterioration caused by the high temperature of the winding according to the estimated maximum temperature Test . It is set to vary between R min and R 100 which does not limit torque.
- the temperature threshold T 100 is the maximum winding temperature at which insulation deterioration does not occur. This is the lowest winding temperature at which insulation deterioration can be suppressed by limiting.
- the torque command value calculator 6 shown in FIG. 2 calculates the final torque command value T * fin , which is the torque for actually driving the motor 2, based on the torque command value T * received from the host system.
- the torque command value T * , the torque limit rate R lim calculated by the limit rate calculator 5, and the determination result of the low rotation region determiner 3 are input to the torque command value calculator 6 . If it is determined from these values that the engine is in the high rotation region, the torque command value calculation unit 6 outputs the torque command value T * as it is to the torque control unit 7 as the final torque command value T * fin . When it is determined to be in the low rotation region, that is, when the motor is locked, the torque command value calculation unit 6 multiplies the torque command value T * by the torque limit rate R lim to obtain the final torque command value T. * fin , and the calculated final torque command value T * fin is output to the torque control unit 7 .
- the torque command value calculator 6 constitutes a controller.
- the torque control unit 7 adjusts the d-axis voltage command value V according to the final torque command value T * fin , the battery voltage detection value Vdc , the rotational speed detection value N, the d -axis current value id and the q -axis current value iq. * Calculate the d and q-axis voltage command values V * q .
- the torque controller 7 outputs these calculated voltage command values to the dq-axis-UVW phase converter 8 .
- a dq-axis-UVW-phase conversion unit 8 converts the d-axis voltage command value V * d and the q-axis voltage command value V * q into UVW-phase voltage command values V * u , V * v , and V * w , and performs PWM Output to the conversion unit 9 .
- the PWM converter 9 converts command values (D*uu , D * ul , D* vu , D * vl , D * wu , D * wl ).
- the inverter 11 is composed of a three-phase power semiconductor, and converts the DC power supplied from the battery 10 into three-phase AC power based on the command value output from the PWM converter 9 and supplies the three-phase AC power to the motor 2 .
- the motor 2 is driven by three-phase AC power supplied from the inverter 11 .
- a current sensor 12 is provided at the output terminal of the inverter 11 and detects current values i u and iv of at least two phases of the three-phase power.
- the motor 2 is provided with a rotor position sensor 14 for detecting an electrical angle detection value ⁇ of the motor 2 .
- the detected current values i u and iv and the electrical angle detection value ⁇ are input to the UVW phase-dq axis conversion section 13 .
- the UVW phase-dq axis conversion unit 13 converts the input values into dq axis current values i d and i q and outputs the current values to the torque control unit 7 .
- the electrical angle detection value ⁇ output from the rotor position sensor 14 of the motor 2 is converted into the rotation speed detection value N of the motor 2 by the rotation speed calculation unit 15 and output to the low rotation region determination unit 3 and the torque control unit 7. be done.
- the rotor position sensor 14 is configured by, for example, a Hall sensor.
- the winding temperature sensor 22 of the motor 2 detects the winding temperature Tm of the motor 2.
- the winding temperature Tm is a value that varies depending on the current flowing in each phase.
- the winding temperature sensor 22 is arranged at the coil end at a position corresponding to the neutral point where the phases formed by the windings are connected to each other. A value detected by the winding temperature sensor 22 is output as the winding temperature Tm.
- the cooling water temperature sensor 23 is provided in the water jacket 21 of the motor 2 as shown in FIG. 1 and detects the cooling water temperature Tw flowing through the water jacket 21 .
- These winding temperature sensor 22 and cooling water temperature sensor 23 are composed of, for example, thermistors.
- FIG. 3 is a diagram showing the details of the winding temperature estimating section 4. As shown in FIG.
- the winding temperature estimator 4 includes a current vector norm calculator 41 , a loss calculator 42 , a temperature calculator 43 , an adder 44 and a correction temperature calculator 45 .
- a current vector norm calculation unit 41 acquires the d-axis current estimated value id_est and the q-axis current estimated value iq_est used for calculation inside the torque control unit 7, and based on these, the total input to the motor 2 is calculated.
- a current vector norm value I a 2 which is a value indicating the current, is calculated.
- the current vector norm value Ia2 is calculated by multiplying the d - axis current estimated value id_est and the q-axis current estimated value iq_est .
- the current vector norm calculator 41 replaces the d-axis current estimated value id_est and the q-axis current estimated value iq_est with the d -axis current value id and the q-axis current value that are actually input to the motor 2 .
- the current value iq may be obtained from the UVW phase-dq axis conversion unit 13 .
- the total electric power input to the motor 2 may be estimated based on the torque command value T * instead of the current value.
- the loss calculator 42 calculates the power loss P loss by multiplying the current vector norm value I a 2 by the thermal resistance R loss of the motor 2 .
- the thermal resistance R loss is a value indicating the thermal resistance of the motor 2 as a whole, and is a value obtained in advance from the structure of the windings of the motor 2 and the like.
- the power loss Ploss of the entire motor 2 is calculated.
- the temperature calculator 43 calculates an estimated change temperature ⁇ Test , which is the maximum temperature rise in the three-phase windings of the motor 2, from the power loss P loss using the transfer function G(s).
- the transfer function G(s) is a transfer function having a dynamic characteristic of at least the first order, and is a function preset according to the structure of the windings of the motor 2 or the like.
- the adder 44 adds the estimated change temperature ⁇ T est and the corrected winding temperature Tm' calculated by the corrected temperature calculation unit 45, thereby determining the highest temperature among the plurality of phase windings in the motor 2. Calculate the estimated maximum temperature T est of the windings of the phase.
- the corrected temperature calculator 45 corrects the temperature based on the winding temperature Tm obtained by the winding temperature sensor 22, the cooling water temperature Tw obtained by the cooling water temperature sensor 23, and the determination result of the low rotation region determination unit 3. A winding temperature Tm' is calculated. The calculated corrected winding temperature Tm′ is output to the adder 44 .
- the winding temperature estimator 4 calculates the estimated maximum temperature Test according to the current vector norm value Ia2 , which is a value indicating the total current input to the motor 2 , and the winding temperature Tm. performs the estimation step.
- the winding temperature estimator 4 constitutes an estimator.
- the correction temperature calculation unit 45 refers to a pre-stored offset value graph (see FIG. 5) when the motor is locked based on the determination result of the low rotation region determination unit 3, and adjusts the winding temperature sensor 22. and the cooling water temperature Tw obtained from the cooling water temperature sensor 23 is obtained.
- the corrected temperature calculation unit 45 calculates the corrected winding temperature Tm' by adding the offset value obtained from this graph to the winding temperature Tm when the motor is locked.
- the correction temperature calculation unit 45 calculates an offset value according to the winding temperature Tm and the cooling water temperature Tw, and adds the offset value to the winding temperature Tm to correct the temperature.
- the correction step is executed by calculating the winding temperature Tm ' and having the adder 44 calculate the estimated maximum temperature Test based on this corrected winding temperature Tm'.
- the corrected temperature calculator 45 and the adder 44 constitute a corrector.
- FIG. 5 is an example of a graph of offset values stored in advance by the corrected temperature calculator 45.
- This graph shows the highest actual winding temperature of the winding and the winding temperature Tm obtained by the winding temperature sensor 22 with respect to the difference value between the winding temperature Tm and the cooling water temperature Tw in the motor lock state.
- An offset value is recorded, which is a value that indicates how much deviation there is.
- the winding temperature sensor 22 is not always provided at the position where the temperature is the highest in the motor 2, and the actual winding temperature may vary due to heat transfer between the surface of the winding and the sensor, response delay of the sensor, and the like. Detects temperature smaller than temperature.
- the corrected winding temperature Tm' obtained by adding the offset value to the winding temperature Tm can be set to a value with a small divergence from the actual winding temperature.
- the graph shown in FIG. 5 is a value that varies depending on the structure of the windings of the motor 2, the heat transfer coefficient with the cooling water, the position of the winding temperature sensor 22, etc., and is obtained in advance by experiments or the like.
- FIG. 6 is a time chart showing the relationship between the winding temperature Tm and the estimated maximum temperature Test in the motor lock state of this embodiment.
- the winding temperature Tm acquired by the winding temperature sensor 22 is detected as a value smaller than the actual winding temperature.
- the motor 2 enters a motor lock state.
- the corrected temperature calculating section 45 calculates a corrected winding temperature Tm', which is a value obtained by adding the offset value shown in FIG.
- the initial value of the estimated change temperature ⁇ Test calculated from the d-axis current estimated value id_est and the q-axis current estimated value iq_est is zero .
- the initial value is the corrected winding temperature Tm', which is obtained by adding the offset value to the winding temperature Tm.
- the initial value of the estimated maximum temperature Test calculated in this manner is a value higher than the actual winding temperature of the motor 2, and the difference from the actual winding temperature is small.
- the estimated maximum temperature Test changes as the estimated change temperature ⁇ T est changes.
- the estimated maximum temperature Test is calculated by adding the estimated changing temperature ⁇ T est to the corrected winding temperature Tm′ when the motor is locked, which is higher than the actual winding temperature of the motor 2. value, and the difference from the actual winding temperature becomes small.
- FIG. 7 is an explanatory diagram showing the arrangement of the winding temperature sensor 22.
- the winding temperature sensor 22 is fixed to the tip of a coil end 52 formed by folding back the winding 51 wound around the stator core 50 that constitutes the motor 2 at the axial end of the stator core 50 .
- the windings 51 of the present embodiment are composed of rectangular wires, are folded back at the coil ends 52 at one end of the stator core 50, and are connected (welded) at the coil ends 52 at the other end for each phase.
- the winding temperature sensor 22 is arranged so as to be in contact with one of the windings 51 at the tip of one of the coil ends 52 .
- the winding temperature sensor 22 is fixed to a neutral point bus bar connected to each of the windings 51 composed of U-phase, V-phase, and W-phase.
- the winding temperature sensor 22 may be directly fixed to the winding 51 by bolting, adhesive, or the like.
- the winding temperature sensor 22 is fixed to a part (for example, a bracket that covers the coil end from the circumferential direction) arranged around the winding 51, and this part is attached to the coil end, so that the winding 51 and the winding temperature A configuration may be adopted in which the sensor 22 is in close contact.
- the present embodiment described above is a control method for the motor 2 that includes windings of a plurality of phases and the water jacket 21 that is a flow path for cooling water.
- the motor 2 includes a winding temperature sensor 22, which is a winding temperature detector for detecting the temperature of the windings, a cooling water temperature sensor 23, which is a cooling water temperature detector for detecting the temperature of the cooling water, and the rotation of the motor 2.
- a rotational speed calculation unit 15 that is a rotation detection unit for detection, and a current vector norm calculation unit 41 that is an input power estimation unit for estimating the input power input to the motor 2 are provided.
- the control method includes an estimating step of estimating an estimated maximum temperature Test of a winding having the highest temperature among a plurality of phase windings based on the input power when the motor 2 is in a locked state. , a correction step of calculating an offset value based on the winding temperature Tm and the cooling water temperature Tw and correcting the estimated maximum temperature Test based on the winding temperature Tm and the offset value; and a control step of controlling the input power.
- the offset value is calculated based on the winding temperature Tm and the cooling water temperature Tw
- the estimated maximum temperature Test is calculated based on the winding temperature Tm and the offset value.
- the offset value is a value that indicates how much the actual winding temperature deviates from the winding temperature Tm acquired by the winding temperature sensor 22.
- the estimated maximum temperature Test is the deviation from the actual winding temperature. calculated to be smaller.
- the correction step calculates the offset value according to the difference value between the winding temperature Tm and the cooling water temperature Tw, the actual winding temperature and the winding temperature acquired by the winding temperature sensor 22 It is possible to calculate an estimated maximum temperature Test that does not deviate greatly from Tm .
- the offset value is a positive value corresponding to the difference value. No temperature can be estimated.
- the estimation step estimates the estimated maximum temperature Test based on the current values input to the windings of a plurality of phases, so it is possible to calculate a temperature that approximates the actual winding temperature.
- the winding temperature sensor 22 is provided at the axial end of the coil end 52 formed by the windings 51 in the stator core 50, so that any one of the three phase windings in the motor 2 can be detected. Line temperature can be detected.
- the windings are composed of rectangular wires, it becomes easy to determine the transfer function G(s) based on the power loss P loss of the windings, and the estimated maximum temperature Test is estimated. things become easier.
- the motor control system 100 of the present embodiment described above is not limited to being used as a drive source for electric vehicles, and may be used as various drive sources other than vehicles.
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Abstract
Description
Claims (7)
- 複数の相の巻線と冷却水の流路とを備えるモータの制御方法において、
前記モータは、前記巻線の温度を検出する巻線温度検出部と、前記冷却水の温度を検出する冷却水温度検出部と、前記モータの回転を検出する回転検出部と、前記モータに入力される入力電力を推定する入力電力推定部と、を備え、
前記モータがロック状態である場合に、前記入力電力に基づいて、複数の相の前記巻線のうち、最も温度が高くなる相の巻線の推定最高温度を算出する推定ステップと、
検出された前記巻線の温度と前記冷却水の温度とに基づいてオフセット値を算出し、前記巻線の温度と前記オフセット値とに基づいて前記推定最高温度を補正する補正ステップと、
前記推定最高温度に応じて、前記入力電力を制御する制御ステップと、を備える、
モータの制御方法。 - 請求項1に記載のモータの制御方法であって、
前記補正ステップは、前記モータの温度と前記冷却水の温度との差分値に応じて前記オフセット値を算出する、
モータの制御方法。 - 請求項2に記載のモータの制御方法であって、
前記オフセット値は、前記差分値に応じた正の値である、
モータの制御方法。 - 請求項1から3のいずれか一つに記載のモータの制御方法であって、
前記推定ステップは、前記複数の相の巻線に入力される電流値に基づいて、前記推定最高温度を推定する、
モータの制御方法。 - 請求項1から4のいずれか一つに記載のモータの制御方法であって、
前記巻線温度検出部は、前記巻線により形成されるコイルエンドの軸方向の端部に備えられる、
モータの制御方法。 - 請求項1から5のいずれか一つに記載のモータの制御方法であって、
前記巻線は、平角線により構成される、
モータの制御方法。 - 複数の相の巻線と冷却水の流路とを備えるモータの制御装置において、
前記モータは、前記巻線の温度を検出する巻線温度検出部と、前記冷却水の温度を検出する冷却水温度検出部と、前記モータの回転を検出する回転検出部と、前記モータに入力される入力電力を推定する入力電力推定部と、を備え、
前記モータがロック状態である場合に、前記入力電力に基づいて、複数の相の前記巻線のうち、最も温度が高くなる相の巻線の推定最高温度を算出する推定部と、
検出された前記巻線の温度と前記冷却水の温度とに基づいてオフセット値を算出し、前記巻線の温度と前記オフセット値とに基づいて前記推定最高温度を補正する補正部と、
前記推定最高温度に応じて、前記入力電力を制御する制御部と、を備える、
モータの制御装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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MX2022001398A MX2022001398A (es) | 2021-05-17 | 2020-05-17 | Metodo para controlar motor, dispositivo para controlar motor. |
EP21847919.4A EP4344053A1 (en) | 2021-05-17 | 2021-05-17 | Method for controlling motor and device for controlling motor |
JP2021566506A JP7180793B1 (ja) | 2021-05-17 | 2021-05-17 | モータの制御方法及びモータの制御装置 |
US17/632,248 US12021472B2 (en) | 2021-05-17 | 2021-05-17 | Method and device including estimating maximum winding temperature and control |
CN202180004666.2A CN116897507A (zh) | 2021-05-17 | 2021-05-17 | 电动机的控制方法及电动机的控制装置 |
BR112022001992A BR112022001992A2 (pt) | 2021-05-17 | 2021-05-17 | Método para motor de controle, dispositivo para motor de controle |
PCT/JP2021/018691 WO2022244084A1 (ja) | 2021-05-17 | 2021-05-17 | モータの制御方法及びモータの制御装置 |
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JP2012228131A (ja) | 2011-04-22 | 2012-11-15 | Toyota Motor Corp | 車両搭載用回転電機の駆動制御システム |
JP2018074810A (ja) * | 2016-10-31 | 2018-05-10 | トヨタ自動車株式会社 | 回転電機 |
WO2018083744A1 (ja) * | 2016-11-01 | 2018-05-11 | 日産自動車株式会社 | モータの制御方法、及び、モータの制御装置 |
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JP3668666B2 (ja) * | 2000-03-21 | 2005-07-06 | 株式会社日立製作所 | 同期電動機とそれを用いた電気車及びその制御方法 |
US7615951B2 (en) * | 2006-09-08 | 2009-11-10 | Gm Global Technology Operations, Inc. | Method and system for limiting the operating temperature of an electric motor |
US8421391B2 (en) * | 2010-05-12 | 2013-04-16 | GM Global Technology Operations LLC | Electric motor stator winding temperature estimation systems and methods |
CN113924714A (zh) * | 2019-06-06 | 2022-01-11 | 日本电产株式会社 | 定子单元及马达 |
CN112092630B (zh) * | 2020-09-23 | 2022-08-12 | 北京车和家信息技术有限公司 | 电机过温保护方法、装置、驱动系统及车辆 |
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JP2012228131A (ja) | 2011-04-22 | 2012-11-15 | Toyota Motor Corp | 車両搭載用回転電機の駆動制御システム |
JP2018074810A (ja) * | 2016-10-31 | 2018-05-10 | トヨタ自動車株式会社 | 回転電機 |
WO2018083744A1 (ja) * | 2016-11-01 | 2018-05-11 | 日産自動車株式会社 | モータの制御方法、及び、モータの制御装置 |
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US12021472B2 (en) | 2024-06-25 |
CN116897507A (zh) | 2023-10-17 |
JPWO2022244084A1 (ja) | 2022-11-24 |
BR112022001992A2 (pt) | 2023-11-28 |
EP4344053A1 (en) | 2024-03-27 |
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US20230361713A1 (en) | 2023-11-09 |
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