WO2016006095A1 - 車両用交流発電機の発電制御装置 - Google Patents
車両用交流発電機の発電制御装置 Download PDFInfo
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- WO2016006095A1 WO2016006095A1 PCT/JP2014/068558 JP2014068558W WO2016006095A1 WO 2016006095 A1 WO2016006095 A1 WO 2016006095A1 JP 2014068558 W JP2014068558 W JP 2014068558W WO 2016006095 A1 WO2016006095 A1 WO 2016006095A1
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- Prior art keywords
- generator
- control device
- limit
- power generation
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/006—Means for protecting the generator by using control
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
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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
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
Definitions
- the present invention relates to a power generation control device for a vehicle alternator driven by an internal combustion engine, and in particular, power generation control of a vehicle alternator that achieves durability in a high temperature environment without changing mechanical design specifications. It relates to the device.
- the present invention has been made in order to solve such a problem, and receives a suppression release signal, that is, a restriction invalidation signal from an external control unit that monitors vehicle information, thereby providing a mechanical design specification.
- An object of the present invention is to obtain a power generation control device for an AC generator for a vehicle that can further improve durability under a high temperature environment without being changed.
- a power generation control device for an automotive alternator is a power generation control device that intermittently controls a field current of a vehicle alternating current generator to control a generator output within a predetermined range.
- a limit invalidation signal receiving unit that receives a current limit invalidation signal, a rotation speed detection unit that detects the rotation speed of the generator, a temperature detection unit that detects the temperature of the power generation control device, and the limit invalidation signal
- the rotational speed of the generator is equal to or higher than a predetermined value and the temperature of the power generation control device is lower than the predetermined value
- the invalidation signal is permitted to invalidate the field current limit
- the generator A limiting valid / invalid discrimination unit that does not allow the invalidation signal when the rotation speed is equal to or lower than a predetermined value or the temperature of the control device is equal to or higher than a predetermined value, and keeps the field current limitation valid. It is a feature.
- the suppression release signal that is, the restriction invalidation signal
- the external control unit that monitors the vehicle information by the power generation control device of the present invention
- only the regeneration (vehicle deceleration) region can be obtained without changing the mechanical design specification.
- by disabling these suppressions under predetermined rotational speed and temperature conditions it is possible to suppress the output power only in the usage region that is considered to have the greatest influence on the durability of the generator.
- FIG. 1 is a diagram showing a circuit configuration of a power generation control device for an automotive alternator (hereinafter simply referred to as a “generator”) according to Embodiment 1 of the present invention, which will be described in detail below.
- an AC generator 1 is attached to an internal combustion engine via a belt (not shown), and generates power by obtaining a driving force from the internal combustion engine.
- the power generation output is supplied to the external control unit 3 and further to an electric load (not shown).
- the generator 1 includes a three-phase stator winding 101 included in the stator, an excitation winding 102 included in the rotor, and a rectifier circuit 103 that full-wave rectifies the three-phase output of the stator winding 101. It is comprised including.
- the control of the output voltage of the generator is performed by appropriately intermittently controlling the energization of the excitation winding 102 by the power generation control device 105 as described below.
- the power generation control device 105 includes a field driver 501 that is an N-channel MOS-FET connected in series to the excitation winding 102 and a free wheel diode 502 connected in parallel to the excitation winding 102.
- a field driver 501 that is an N-channel MOS-FET connected in series to the excitation winding 102 and a free wheel diode 502 connected in parallel to the excitation winding 102.
- the power generation control device 105 includes a comparator 503 that detects the output terminal voltage of the generator by dividing it with resistors 512 and 513 and compares it with a reference value 514 that matches the target generated voltage. If the output of the limit duty generation unit 540 described later is fixed to the Lo potential, the comparator 503 outputs the Lo potential when the output voltage of the generator is lower than the target generated voltage.
- the NOR circuit 560 at the subsequent stage outputs a Hi potential, turns on the field driver 501 to energize the field current, and increases the output voltage.
- the comparator 503 outputs a Hi potential.
- the NOR circuit 560 at the subsequent stage outputs the Lo potential, turns off the field driver 501 to cut off the field current, and lowers the output voltage. It is a well-known matter that the output voltage of the generator is controlled to a target generated voltage value by repeating this operation.
- the external control unit 3 Various information on the vehicle is input to the external control unit 3. For example, based on the vehicle speed information, the power supply conductivity to the field coil is increased by instructing the generator to release suppression when the vehicle is decelerated. Efficient energy recovery becomes possible. In addition, when the required output current of the vehicle increases momentarily based on the vehicle's electrical load information, a limit invalidation signal is issued to the generator so that the field current limit is released and full power can be output. Is output.
- the field duty detection unit 570 receives the output signal of the NOR circuit 560, detects the power supply continuity (that is, the field duty) to the field coil 102, and relatively detects the field current amount.
- Rotational speed detection unit 504 detects the rotational speed of the generator by inputting a one-phase voltage signal of stator coil 101 of the generator through wiring 515. As described above, the generator is attached to the internal combustion engine via the belt, and the rotational speed detection unit 504 can also indirectly detect the rotational speed of the internal combustion engine.
- a comparator 505 for comparing the rotational speed of the generator detected as described above with a reference value 516 is provided, and when the rotational speed is lower than the reference value, the Lo potential is set. Output to 520.
- the temperature detection unit 506 detects the temperature in the power generation control device.
- the comparator 507 compares the detected temperature with the reference value 517, and outputs a Hi potential when the temperature is equal to or lower than the reference value, and outputs a Lo potential when the temperature is equal to or higher than the reference value to the subsequent AND circuit 520.
- a restriction invalidation signal receiving unit 550 that receives an invalidation signal from an external control unit (ECU) 3 provided outside the power generation control device 105 is provided. If no invalidation command is received from the external control unit 3, Lo Outputs a potential, and outputs a Hi potential when an invalidation command is received.
- ECU external control unit
- the AND circuit 520 disables the field current limit when the rotation speed is equal to or higher than a predetermined value and the temperature of the control device is equal to or lower than the predetermined value.
- the Hi potential is output only when a signal is received.
- the limit valid / invalid determination unit 530 receives a signal that enables the field current limit when the Lo potential signal is input from the preceding AND circuit 520, and the field current limit when the Hi potential signal is input from the AND circuit 520. Are output to the subsequent limit duty generation unit 540, respectively.
- the limit duty generation unit 540 When the limit duty generation unit 540 receives the field current limit invalid signal from the limit valid / invalid determination unit 530, the limit duty generation unit 540 outputs a PWM signal of Duty 0% (Lo fixed) to the NOR circuit 560 of the next stage, The field driver 501 is controlled only by the output signal of the voltage control comparator 503. On the other hand, when the limit valid signal is received from the limit valid / invalid determination unit 530, the duty is increased by a predetermined time coefficient from Duty 0% to a preset limit Duty. Similarly, when the current limit is invalidated from the state limited by the predetermined duty, the duty is decreased by a predetermined time factor to Duty 0%.
- the NOR circuit 560 synthesizes the input signals from the voltage control comparator 503 and the limit duty generator 540, and performs ON / OFF control of the field driver 501 based on the output.
- the output of the generator is proportional to the rotation speed
- the lower the rotation speed with respect to the same required output current the more field current is required and the component temperature becomes higher.
- the cooling air generated by the generator itself tends to decrease as the rotational speed decreases.
- the temperature of the generator is measured in the power generation control device, and even if there is a difference between the temperature of the power generation control device and other parts, if the rotational speed is low, it is predicted that the temperature is high as described above. This increases the accuracy of the prediction that other parts are hot.
- the power generation control device includes the external field current limit invalidation command receiving unit 550, and the generator rotation speed and power generation control device temperature detection units 504 and 506, which are invalidated.
- the signal is input, if the rotational speed of the generator is equal to or higher than a predetermined value and the temperature of the control device is equal to or lower than the predetermined value, an invalidation command is permitted to invalidate the field current limit.
- the rotational speed of the generator is lower than a predetermined value or the temperature of the control device is higher than the predetermined value, the invalidation command is not permitted and the field current limit is controlled to remain valid.
- the power generation control device of the present invention receives a field current limit invalidation signal from the outside, and when the invalidation is permitted in accordance with the above-described conditions, the generator field duty (feeding conduction rate) ) Is provided with a timer unit 508 that measures the time after reaching the limit Duty, and when the invalidation time is measured and the accumulated value reaches a predetermined time (timer time: t1), the field is again generated.
- a function to enable current limit is provided.
- the timer time t1 is reached and the field current limit is enabled, the field current limit can be disabled again if the accumulated time decreases to the recovery time: t2. It has the function to.
- the operation related to this will be described in a specific circuit configuration.
- the field duty detection unit 570 detects the actual value of the field duty and transmits the information to the timer reference value generation unit 509.
- the comparator 511 compares the limit duty value set by the limit duty generation unit 540 with the actual field duty from the field duty detection unit 570, and when the actual field duty reaches the limit duty, A count-up signal is transmitted to the timer unit 508 at the subsequent stage. On the other hand, when the actual field duty falls below the limit duty, a countdown signal is transmitted to the timer unit 508.
- the timer unit 508 When the timer unit 508 receives a count-up signal from the comparator 511, the timer unit 508 starts timer counting, and the comparator 510 sets the reference value that matches the arbitrary timer time t1 output from the timer reference value generation unit 509. When it reaches, Lo potential is output, field current disabling is disallowed, and field current limitation is enabled again.
- the timer unit 508 it is possible to prevent the cancellation restriction invalidity from being continued when there is a difference between the temperature of the power generation control device 105 and the temperature of other components. Further, after the accumulated time reaches the timer time t1 and the field current control is once invalidated, the accumulated time is counted down, and the field current limit can be invalidated again by reaching the recovery time t2. Has a function that can be in a state.
- the timer reference value generation unit 509 disables the field current limit from the rotation speed information from the rotation speed detection unit 504 of the generator and the temperature information of the power generation control device from the temperature detection unit 506 until it is enabled again.
- the timer time t1 and recovery time t2 are variable, the rotation speed is higher, the lower the temperature, the longer the timer time t1 and the recovery time t2 (on a 0 sec basis), the lower the rotation speed, and the higher the temperature, the timer time t1 is recovered. Shorten the time t2.
- the higher the field duty the shorter the timer time t1 and the recovery time t2 (on the basis of 0 sec), and the shorter the field duty, the shorter the timer time t1 and the recovery time t2. It has a function.
- FIG. 2 is a flowchart for explaining the operation state of the power generation control device described above.
- the power generation control device 105 receives a field current limiting invalidation signal from the external control unit 3 (S1), the power generation control device 105 determines whether the rotational speed of the generator is equal to or higher than a predetermined rotational speed (S2). If it is equal to or higher than the predetermined rotational speed, it is determined whether or not the temperature of the power generation control device is equal to or lower than a predetermined value (S3).
- the rotational speed of the generator is not more than a predetermined value or the temperature of the power generation control device is not less than a predetermined value, the field current limit is kept valid (S9).
- the timer accumulated time of the timer unit 508 is equal to or shorter than the recovery time t2 (S4), and the field current limit is kept valid even when the recovery time has not been reached (S9).
- the field current limit is invalidated (released), and the output of the generator is increased (S5).
- the output of the generator increases (the field duty increases), and it is determined whether or not the predetermined limit duty is reached (S6), and the timer is counted up when the predetermined limit duty is reached. (S7).
- the load on the generator is small and the timer is not counted up.
- the timer is counted down (S10). When the timer counts down to the recovery time, the field current limit can be released.
- FIG. 3 is a diagram for explaining the operation in the first embodiment of the present invention in a more easy-to-understand manner.
- FIG. In the section [1] in the figure, when the restriction invalidation signal from the external control unit 3 is input to the generator, the restriction release is established, and when the field duty reaches the restriction duty, the timer is counted up. At this time, since the accumulated time has not reached the timer time t1, the limitation remains released (in the drawing, the field duty is described in a state where it reaches the limitation duty).
- the timer is counted down.
- the timer counts up, and when the accumulated time reaches the timer time t1, the command from the outside is ignored and the field current limit is validated ( (Shaded area).
- the timer is also counted down, the accumulated time is reduced until the recovery time t2, and the field current limit can be released.
- the field current limit can be canceled, so the limit is canceled again and the timer is counted up.
- FIG. 4 shows another example of the operation.
- the timer time t1 and the recovery time t2 Is controlled. That is, the timer time t1 and the recovery time t2 are set to be longer by a predetermined coefficient as the generator rotation speed is higher and the temperature of the power generation control device is lower.
- the timer time t1 and the recovery time t2 are set to be shorter by a predetermined coefficient as the temperature of the control device increases. Therefore, it is possible to prevent the generator from being overpowered at a high temperature and reduce the service life, thereby further improving safety. Further, by increasing / decreasing the duty by a predetermined time coefficient, it is possible to mitigate a rapid torque change of the generator due to switching of the field limit valid / invalid.
- FIG. FIG. 5 is a circuit block diagram showing a power generation control device for an automotive alternator according to Embodiment 2 of the present invention.
- a current detection unit 590 that directly detects a field current is provided as a field current limiting function.
- the current value of the current detection unit 590 is compared with a predetermined limit current value. When the current value exceeds the limit current value, the field driver 501 is turned off. When the current value is less than the limit current value, the output voltage Control is performed depending on the comparator 503 for control.
- the current detection unit 590 detects an actual current value to the field driver 501 by a sense resistor or the like, though not shown, and performs current-voltage conversion, which is input to the comparator 515 (not shown).
- the duty-voltage conversion unit 580 receives a signal from the limit valid / invalid determination unit 530, generates the limit current value as a voltage value, and uses it as a reference value for the comparator 515.
- the object of comparison is not the duty as in the first embodiment but a voltage value. Even when the field current is detected in this way, the same control as in the first embodiment is possible. It is.
- the actual value of the power supply conductivity (Duty) to the field coil (Duty) and the limit Duty value are set to the external control unit (ECU) 3.
- the external control unit 3 can know the remaining power generation capacity of the generator, and can be effectively used for controlling the engine rotation speed and decelerating regeneration when the electric load is applied. For example, when a large electric load is applied when the remaining power generation capacity of the generator is low, the risk of engine output reduction is avoided by increasing the engine speed and increasing the power generation capacity of the generator. be able to.
- the difference between the accumulated time after the field current limit is disabled and the timer time t1, and the difference between the accumulated time after the timer time t1 is reached once and the field current limit is enabled, and the recovery time t2, respectively.
- the external control unit By outputting to the external control unit, it is possible to detect the remaining time of the restriction invalidation, and it can be used for the control for the purpose of positively securing power generation within this time. For example, the fuel injection amount is increased and the engine rotation speed is increased only during the remaining time of the disablement of the limit to secure the amount of increase in the output of the generator. It is also possible to return to normal control by detecting the state.
- the restriction invalidation signal is sent from the external control unit.
- the restriction invalidation signal is sent from the external control unit.
- the restriction invalidation signal is sent from the external control unit.
- the restriction invalidation signal is sent from the external control unit.
- the external control unit detects the time increase / decrease trend, if the limit invalidation signal is transmitted and the difference is decreasing, the limit invalid state, the limit invalidation signal is transmitted and the difference It can be judged that the restriction is in a valid state if is increasing. Therefore, when the external unit determines to transmit the restriction invalidation signal, it can be known in advance whether the generator is in a state in which the restriction can be received, and measures such as increasing the rotational speed of the engine are possible.
- Embodiment 1 the difference between the field duty and the limit duty is output and output to the external control unit 3 existing on the vehicle side, thereby improving the information accuracy of the remaining power generation capacity of the generator. is there.
- the remaining power generation capability of the generator is output as a current value to the external control unit 3 as in the second embodiment
- the maximum energization current of the generator varies depending on the resistance value state of the field coil (field field Since the resistance value of the coil varies depending on the electromagnetic specifications and the power generation state for each model, there is a problem that the information accuracy is lowered. Therefore, in the second embodiment, the output to the external control unit 3 uses the duty information from the field duty detector as in the first embodiment.
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Abstract
Description
しかしながら、特許文献1のものは、回生発電が必要な回転域(減速時)においてのみ給電導通率の抑制を解除しようとするものであり、その他の運転領域においての高温耐久性については考慮されておらず、また、回生発電が頻繁に行われる環境下では発電機の温度が異常に上昇し、発電機の特性を劣化させる結果となっていた。
また、所定の回転速度・温度条件下でこれらの抑制を無効とすることで、発電機の耐久性に最も影響が大きいと考えられる使用領域のみで出力電力を抑制することができる。
図1は本発明の実施の形態1による車両用交流発電機(以下、単に発電機という)の発電制御装置の回路構成を示す図であり、以下これについて詳細に説明する。
図1において交流発電機1は、図示しないベルトを介して内燃機関へ装着されており、内燃機関によって駆動力を得て発電を行うが、発電制御装置105によりその出力が制御されてバッテリ2や外部制御ユニット3、更には図示しない電気負荷に発電出力を供給している。
更に、発電制御装置105の外部に備えられる外部制御ユニット(ECU)3から無効化信号を受ける制限無効化信号受信部550を備え、外部制御ユニット3から無効化命令を受信していない場合はLo電位を出力し、無効化命令を受信した場合はHi電位を出力する。
制限有効/無効判別部530は、前段のAND回路520からLo電位信号が入力されると界磁電流制限を有効とする信号を、AND回路520からHi電位信号が入力されると界磁電流制限を無効にする信号をそれぞれ後段の制限Duty生成部540へ出力する。
上記NOR回路560は、電圧制御用の比較器503と制限Duty生成部540からの入力信号を合成し、その出力によって界磁ドライバ501のON/OFF制御を行う。
このタイマー部508を備えることで、発電制御装置105の温度とその他の部品温度に乖離があった場合に解除制限無効が継続されることを防止する。
さらに、累積時間がタイマー時間t1に達して界磁電流制御を一度無効としたあとは、この累積時間をカウントダウンしていき、回復時間t2に達することで再び界磁電流制限の無効化を可能な状態にできる機能を持つ。
また、界磁Duty検知部570からの情報によって、界磁Dutyが高いほどタイマー時間t1及び回復時間t2は(0sec基準で)短く、界磁Dutyが高いほどタイマー時間t1と回復時間t2を短くする機能を備える。
上記以外の場合、界磁電流制限を無効化(解除)し、発電機の出力を増加させる(S5)。次に、発電機の出力が増加(界磁Dutyが増加)していき、所定の制限Dutyに達したかどうかを判定(S6)し、所定の制限Dutyに達した時点からタイマーをカウントアップしていく(S7)。
次に、このカウントアップされたタイマー累積時間が所定の制限時間t1に達するかどうか判定(S8)し、これが所定の制限時間に達すると、界磁電流の制限を再び有効とする(S9)とともにタイマーをカウントダウンする(S10)。
タイマーが、回復時間までカウントダウンされることで、界磁電流制限の解除可能な状態となる。
図中の区間[1]は外部制御ユニット3からの制限無効化信号が発電機へ入力され、制限解除が成立し、さらに界磁Dutyが制限Dutyに達した場合、タイマーをカウントアップする。このとき、累積時間はタイマー時間t1に到達していないため制限は解除されたままである(図では界磁Dutyが制限Dutyに達している状態で記載している)。
区間[5]では界磁電流制限を解除可能な状態のため、再び制限を解除し、タイマーをカウントアップする。
従って、高温度で発電機が過出力となり寿命低下となることを防止し、より安全性を向上することができる。
また、所定の時間係数でDutyを増減させることにより、界磁制限有効/無効の切り替え時による発電機の急激なトルク変化を緩和することができる。
図5は本発明の実施の形態2に係る車両用交流発電機の発電制御装置を示す回路ブロック図である。図中、実施の形態1と同一あるいは相当部分には同一符号を付している。 実施の形態2では界磁電流の制限機能として、界磁電流を直接検出する電流検出部590を備えている。この電流検出部590の電流値と、あらかじめ決められた制限電流値とを比較し、制限電流値以上となった場合は界磁ドライバ501をOFFし、この制限電流値以下の場合は、出力電圧制御用の比較器503に依存して制御を行う。
そこで、この実施の形態2では外部制御ユニット3への出力は、実施の形態1と同様、界磁Duty検出部からのDuty情報を利用するようにしている。
101 固定子巻線、 102 励磁巻線、
103 整流回路、 105 発電制御装置、
501 界磁ドライバ、 502 還流ダイオード、
503、505、507、510、511、515 比較器、
504 回転速度検知部、 506 温度検知部、
508 タイマー部、 509 タイマー基準値生成部、
512、513 抵抗、 514、516、517 基準値、
520 OR回路、 530 制限有効/無効判別部、
540 制御Duty生成部、 550 制限無効化信号受信部、
560 NOR回路、 570 界磁Duty検出部、
580 Duty-電圧変換部、 590 電流検出部。
Claims (7)
- 車両用交流発電機の界磁電流を断続制御して発電機出力を所定の範囲に制御する発電制御装置において、外部からの前記界磁電流の制限無効化信号を受信する制限無効化信号受信部と、発電機の回転速度を検出する回転速度検知部と、発電制御装置の温度を検出する温度検知部と、上記制限無効化信号が入力された際、発電機の回転速度が所定値以上で、かつ発電制御装置の温度が所定値以下の場合は上記制限無効化信号を許可して界磁電流制限を無効とすると共に、発電機の回転速度が所定値以下、又は制御装置の温度が所定値以上の場合は上記制限無効化信号を許可せず、界磁電流制限を有効のままとする制限有効/無効判別部とを備えたことを特徴とする車両用交流発電機の発電制御装置。
- 発電制御装置は発電機の界磁Dutyを検出する界磁Duty検出部と、上記界磁Dutyが制限Dutyに達してからの時間を計測するタイマー部とを更に備え、外部からの界磁電流の制限無効化信号を受信して無効化を許可した場合、その無効化時間を計測して、累積値が所定のタイマー時間t1に達した場合は、再び界磁電流制限を有効とすると共に、一度タイマー時間t1に達して界磁電流制限を有効としてから、累積時間が回復時間t2まで低下した場合、再度界磁電流制限の無効化を可能とするようにしたことを特徴とする請求項1に記載の車両用交流発電機の発電制御装置。
- 上記タイマー時間t1及び回復時間t2は、発電機の回転速度が高いほど、また発電制御装置の温度が低いほど時間が長くなる所定の係数で可変とされることを特徴とする請求項2に記載の車両用交流発電機の発電制御装置。
- 上記タイマー時間t1及び回復時間t2は、発電機の界磁Dutyが高いほど短くなる所定の係数で可変とされることを特徴とする請求項2に記載の車両用交流発電機の発電制御装置。
- 発電制御装置は発電機の界磁電流を直接検出する界磁電流検出器と、制限界磁電流値を電圧値で生成する基準電圧生成部を備え、外部からの界磁電流の制限無効化信号を受信して無効化を許可した場合、その無効化時間を計測して、累積値が所定のタイマー時間t1に達した場合は、再び界磁電流制限を有効とすると共に、一度タイマー時間t1に達して界磁電流制限を有効としてから、累積時間が回復時間t2まで低下した場合、再度界磁電流制限の無効化を可能とするようにしたことを特徴とする請求項1に記載の車両用交流発電機の発電制御装置。
- 発電制御装置は、界磁電流制限を無効化してからの累積時間とタイマー時間t1との差分と、一度タイマー時間t1に達して界磁電流制限を有効としてからの累積時間と回復時間t2との差分を外部制御ユニットへ出力するようにしたことを特徴とする請求項1あるいは5に記載の車両用交流発電機の発電制御装置。
- 発電制御装置は、発電機の界磁コイルへの給電導通率の実際値と制限Duty値を比較し、その差分を外部制御ユニットへ出力するようにしたことを特徴とする請求項1あるいは5に記載の車両用交流発電機の発電制御装置。
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PCT/JP2014/068558 WO2016006095A1 (ja) | 2014-07-11 | 2014-07-11 | 車両用交流発電機の発電制御装置 |
US15/300,876 US9899943B2 (en) | 2014-07-11 | 2014-07-11 | Power generation control device of vehicle alternating current generator |
JP2016532381A JP6203403B2 (ja) | 2014-07-11 | 2014-07-11 | 車両用交流発電機の発電制御装置 |
EP14897016.3A EP3168978B1 (en) | 2014-07-11 | 2014-07-11 | Power-generation control device for vehicular ac power generator |
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PCT/JP2014/068558 WO2016006095A1 (ja) | 2014-07-11 | 2014-07-11 | 車両用交流発電機の発電制御装置 |
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2014
- 2014-07-11 EP EP14897016.3A patent/EP3168978B1/en not_active Not-in-force
- 2014-07-11 US US15/300,876 patent/US9899943B2/en active Active
- 2014-07-11 JP JP2016532381A patent/JP6203403B2/ja not_active Expired - Fee Related
- 2014-07-11 WO PCT/JP2014/068558 patent/WO2016006095A1/ja active Application Filing
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JP2007215277A (ja) * | 2006-02-07 | 2007-08-23 | Denso Corp | 車両用発電制御装置 |
JP2010178551A (ja) * | 2009-01-30 | 2010-08-12 | Mitsubishi Electric Corp | 車輌用回転電機の発電制御装置 |
JP2010263720A (ja) * | 2009-05-08 | 2010-11-18 | Denso Corp | 車両用発電制御装置 |
JP2011200062A (ja) * | 2010-03-23 | 2011-10-06 | Denso Corp | 車両用発電制御装置 |
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EP3168978A4 (en) | 2018-04-04 |
US9899943B2 (en) | 2018-02-20 |
EP3168978A1 (en) | 2017-05-17 |
EP3168978B1 (en) | 2021-12-29 |
US20170019046A1 (en) | 2017-01-19 |
JP6203403B2 (ja) | 2017-09-27 |
JPWO2016006095A1 (ja) | 2017-04-27 |
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