Patent application number | Description | Published |
20100072958 | POWER GENERATION CONTROL APPARATUS OF A ROTATING ELECTRICAL MACHINE FOR A VEHICLE - A power generation control apparatus of a rotating electrical machine for a vehicle is obtained which achieves load response control in a plurality of electric power generation control modes even if a generation voltage final target value rapidly changes. The apparatus includes a power control unit | 03-25-2010 |
20100194355 | POWER-GENERATION CONTROL APPARATUS FOR IN-VEHICLE ELECTRIC ROTATING MACHINE - There can be performed the best power-generation control without enlarging the apparatus, deteriorating the reliability, and raising the cost. The power-generation control apparatus is provided with a power-generation amount suppression determination unit that determines whether or not to change a power-generation amount suppression level for suppressing the power-generation amount of the in-vehicle electric rotating machine, based on a present generation-voltage command value generated by a generated-voltage command unit and a generated-voltage past command value based on a past generated-voltage command value stored in a generated-voltage command storage unit, and that determines whether or not the power-generation amount suppression control is required, based on at least one of a past value and a present value of the generated-voltage command; therefore, there can be performed the best power-generation control without enlarging the apparatus, deteriorating the reliability, and raising the cost. | 08-05-2010 |
20110248687 | POWER SUPPLY SYSTEM FOR MOTOR VEHICLE - A power supply system for a motor vehicle is provided with: a generator that includes a rotor having a field coil and a stator having an armature coil; a rectifier that rectifies AC power generated in the armature coil; an excitation control circuit that takes control of a voltage applied to the field coil; a capacitor that is connected to the DC side of the rectifier, and receives and transfers the rectified power; a battery connected to an electric load of the motor vehicle; a DC-DC converter that is connected between the capacitor and the battery and capable of converting unidirectionally or bidirectionally an input DC voltage into any DC voltage; and a selection switch capable of selecting as a power supply source for the excitation control circuit either the capacitor or the battery. | 10-13-2011 |
20110260697 | CONTROL DEVICE FOR VEHICLE AC GENERATOR - In order to receive a power generation command from the outside of a body, to transmit power generation control condition with respect to the power generation command to the outside, and to enable a vehicle to drive properly depending on the condition; a minimum value selector by which on-duty of a switching element by the power generation command inputted from the outside of the body of a control device is compared to on-duty of the switching element calculated inside the body of the control device and smaller on-duty of both on-duties is selected to perform ON/OFF control of the switching element is included, and the selected on-duty is transmitted to the outside. | 10-27-2011 |
20120007569 | CONTROL DEVICE FOR VEHICLE AC GENERATOR - A control device for a vehicle AC generator, in which a part can be shared even when electrical configuration positions of field coils of rotors of generators are different, is obtained. Switching elements connected in series to the field coil in order to control a field current; and a control signal processing unit, in which information as to whether the field coil is connected to the high potential side or connected to the low potential side is inputted, one of the high potential side terminal and the low potential side terminal is selected on the basis of the inputted information, a control signal is outputted, and ON/OFF control of the switching element is performed to control the field current of the field coil, are provided. | 01-12-2012 |
20120217944 | CURRENT DETECTOR OF INDUCTIVE LOAD - A current detector of an inductive load includes: an inductive load | 08-30-2012 |
20130088179 | SYNCHRONOUS MACHINE CONTROL APPARATUS - A control command generator that generates an armature interlinkage flux command and a torque current command by a torque command, a rotation speed, and an operation target command, includes a first flux command generator generating a first flux command by the toque command or the torque current command, a second flux generator generating a second flux command by the torque command or the torque current command and the rotation speed of the synchronous machine, a command allocation setting unit setting an allocation coefficient equivalent to an allocation ratio of the two first and second flux commands by the operation target command, a flux command adjuster outputting an armature interlinkage flux command by the two flux commands and the allocation coefficient, and a torque current command generator generating the torque current command by the torque command and the armature interlinkage flux command. | 04-11-2013 |
20130140816 | POWER SUPPLY SYSTEM FOR MOTOR VEHICLE - A power supply system for a motor vehicle is provided with: a generator that includes a rotor having a field coil and a stator having an armature coil; a rectifier that rectifies AC power generated in the armature coil; an excitation control circuit that takes control of a voltage applied to the field coil; a capacitor that is connected to the DC side of the rectifier, and receives and transfers the rectified power; a battery connected to an electric load of the motor vehicle; a DC-DC converter that is connected between the capacitor and the battery and capable of converting unidirectionally or bidirectionally an input DC voltage into any DC voltage; and a selection switch capable of selecting as a power supply source for the excitation control circuit either the capacitor or the battery. | 06-06-2013 |
20130249448 | SYNCHRONOUS MACHINE CONTROL APPARATUS - A synchronous machine control apparatus is characterized by including a magnet condition estimation unit ( | 09-26-2013 |
20140340010 | SYNCHRONOUS MACHINE CONTROL APPARATUS - A synchronous machine control apparatus for correcting a rotor position error that is a difference between a rotor position of a synchronous machine and a rotor position detected by a position detection unit is provided with a current control device for performing control in such a way that respective current command values and respective current detection values in a generation direction (γ axis) of an armature interlinked magnetic flux and in a direction perpendicular (δ axis) to the generation direction of the armature interlinked magnetic flux coincide with each other and with a magnetic flux calculation device for calculating a phase of an armature interlinked magnetic flux, based on an armature current detection value of the synchronous machine and an armature voltage command value therefor; the rotor position error is corrected based on the γδ-axis current command values and a phase of the armature interlinked magnetic flux. | 11-20-2014 |