摘要:
[Object] To provide a field-winding rotating electrical machine capable of, even when field current is limited, releasing the limitation of field current within a predetermined range of time in the case where a vehicle needs a normal output. [Solution] A field current limiting section 140 includes a field current limitation instructing section 143 for, when a field current limitation determining section 142 determines that a determination value has reached a predetermined determination threshold value, generating a field current limiting instruction to a field current control section 110 so as to limit field current to be equal to or smaller than a predetermined permissible value during a predetermined field current limitation time T lim . A field current limitation releasing section 150 outputs a field current limitation releasing instruction to the field current limiting section so as to release limitation of the field current during a predetermined field current limitation release time T c . When having received the field current limitation releasing instruction from the field current limitation releasing section, the field current limiting section releases limitation of the field current during the predetermined field current limitation release time.
摘要:
The invention relates to a device for controlling an alternator of the type that controls a DC voltage (B+A) generated by the alternator (11) according to a predetermined set voltage (U 0 ) by monitoring the intensity of an energising current (I EXC ) flowing through an energising circuit of the alternator. According to the invention, the device includes a voltage-control loop (7) and a temperature-control loop (17) which comprises a temperature sensor supplying a current temperature (T) of components of the alternator, a subtracter (19) supplying a temperature error (ε τ ) between the current temperature (T) and a maximum acceptable temperature (T max ) and a control module (20) supplying a maximum admissible energising percentage (r max ) in accordance with the temperature error according to a predetermined control law.
摘要:
A power tool (10) is provided, including a housing (24); a brushless DC (BLDC) motor (110) arranged within the housing, the motor including a stator (130) and a rotor (140) rotatably disposed within the stator; a power module (116) electrically disposed between the motor and a power supply, the power module including power switches (202); an actuator (32) engageable by a user; and a control module (330) configured to control a switching operation of the power switches to begin supply power to the motor when the actuator is engaged. The control module monitors engagement and disengagement events of the actuator, and ignores a subsequent engagement of the actuator if at least one of number of actuator engagement events and/or number of actuator disengagement events exceeds a predetermined threshold value within a predetermined time.
摘要:
[Object] To provide a field-winding rotating electrical machine capable of, even when field current is limited, releasing the limitation of field current within a predetermined range of time in the case where a vehicle needs a normal output. [Solution] A field current limiting section 140 includes a field current limitation instructing section 143 for, when a field current limitation determining section 142 determines that a determination value has reached a predetermined determination threshold value, generating a field current limiting instruction to a field current control section 110 so as to limit field current to be equal to or smaller than a predetermined permissible value during a predetermined field current limitation time T lim . A field current limitation releasing section 150 outputs a field current limitation releasing instruction to the field current limiting section so as to release limitation of the field current during a predetermined field current limitation release time T c . When having received the field current limitation releasing instruction from the field current limitation releasing section, the field current limiting section releases limitation of the field current during the predetermined field current limitation release time.
摘要:
[Object] To provide a field-winding rotating electrical machine capable of, even when field current is limited, releasing the limitation of field current within a predetermined range of time in the case where a vehicle needs a normal output. [Solution] A field current limiting section 140 includes a field current limitation instructing section 143 for, when a field current limitation determining section 142 determines that a determination value has reached a predetermined determination threshold value, generating a field current limiting instruction to a field current control section 110 so as to limit field current to be equal to or smaller than a predetermined permissible value during a predetermined field current limitation time T lim . A field current limitation releasing section 150 outputs a field current limitation releasing instruction to the field current limiting section so as to release limitation of the field current during a predetermined field current limitation release time T c . When having received the field current limitation releasing instruction from the field current limitation releasing section, the field current limiting section releases limitation of the field current during the predetermined field current limitation release time.
摘要:
To include a power converter 2 that drives an induction machine 1 and a control unit 5 that controls the power converter 2. The control unit 5 includes a drive stopping unit 10. The drive stopping unit 10 includes a secondary-resistance-temperature detecting unit 30 that detects temperature rise of a secondary resistance of the induction machine 1 based on a current (a d-axis-current detection value Id and a q-axis-current detection value Iq, or a d-axis current command Id* and a q-axis current command Iq*) detected by the induction machine 1, an inverter angular frequency Éinv calculated based on the current, and speed information Étrain of an electric vehicle detected by an external-speed-information detecting unit 14, and the drive stopping unit 10 also includes a drive-stopping-signal output unit 31 that outputs a drive stopping signal Gstop for stopping a driving operation of the power converter 2 based on the speed information Étrain of an electric vehicle and an output (deviation) from the secondary-resistance-temperature detecting unit 30.
摘要:
The present invention concerns a rotating electrical machine for a motor vehicle. The machine (1) comprises a rotor (2) supplied with an excitation current (ie), a stator (3) comprising a polyphase winding and coupled to the rotor (2), a thermal protection module (4) suitable for evaluating at least one temperature (T1, T2, T3) in the machine and for comparing said temperature with an associated thermal protection threshold (Th), a control device (5) supplying the excitation current (ie) depending on an operation mode command (RQ) and said temperature comparison, so as to operate the rotating electrical machine (1) according to a mode of operation chosen from a nominal generator mode in which the machine is configured to deliver a first maximum power or at least one extended generator mode in which the machine is configured to deliver a second maximum power greater than said first maximum power.
摘要:
Die Erfindung betrifft ein Verfahren zum Initialisieren einer Temperaturüberwachung für Komponenten eines Elektromotors, ein Steuerungsverfahren für einen Elektromotor sowie eine elektronische Motorsteuerung. Temperaturen von temperaturüberwachten Komponenten werden initialisiert, ohne dass hierfür auf eine nach dem Ausschalten fortgeführte Temperaturüberwachung zurückgegriffen werden muss.
摘要:
To include a power converter 2 that drives an induction machine 1 and a control unit 5 that controls the power converter 2. The control unit 5 includes a drive stopping unit 10. The drive stopping unit 10 includes a secondary-resistance-temperature detecting unit 30 that detects temperature rise of a secondary resistance of the induction machine 1 based on a current (a d-axis-current detection value Id and a q-axis-current detection value Iq, or a d-axis current command Id* and a q-axis current command Iq*) detected by the induction machine 1, an inverter angular frequency ωinv calculated based on the current, and speed information ωtrain of an electric vehicle detected by an external-speed-information detecting unit 14, and the drive stopping unit 10 also includes a drive-stopping-signal output unit 31 that outputs a drive stopping signal Gstop for stopping a driving operation of the power converter 2 based on the speed information ωtrain of an electric vehicle and an output (deviation) from the secondary-resistance-temperature detecting unit 30.