| Patent application number | Description | Published |
|---|
| 20090025992 | Vehicle and Vehicle Control Method - In response to a starting instruction of an engine | 01-29-2009 |
| 20090121669 | Motor Drive Device and Motor Drive Device Control Method - A motor drive device ( | 05-14-2009 |
| 20090159350 | Vehicle Controller, Vehicle and Vehicle Control Method - A controller for a vehicle including at least one motor driving wheels, an inverter driving the motor, and a boosting converter supplying a dc power supply current to the inverter, is provided with a control portion performing rectangular wave control and non-rectangular wave control on the inverter in a switched manner. The control portion has an emergency switching condition for switching control from the rectangular wave control to the non-rectangular wave control, as a determination reference, and when the emergency switching condition is satisfied while the rectangular wave control is being executed (YES at step S | 06-25-2009 |
| 20090237019 | MOTOR DRIVE CONTROL APPARATUS, VEHICLE EQUIPPED WITH MOTOR DRIVE CONTROL APPARATUS, AND MOTOR DRIVE CONTROL METHOD - When a target operation point of either a motor MG | 09-24-2009 |
| 20090309528 | Motor driving system and controlling method of the same - A plurality of current sensors are provided to correspond to a plurality of inverter circuits for driving a plurality of motor generators, respectively. Zero point adjustment of each current sensor is executed in a non-energized state recognized based on a stop of operation of the corresponding inverter circuit and when noise influence is determined to be small based on stops of operations of the other inverter circuits in the same casing. As a result, it is possible to avoid a risk of performing the zero point adjustment in a state in which an output of the current sensor is not exactly a value corresponding to zero current due to the noise influence from the other inverter circuits. In this way, it is possible to highly accurately execute the zero point adjustment of the current sensor for measuring motor driving current. | 12-17-2009 |
| 20100045224 | ELECTRIC VEHICLE CONTROL DEVICE - When an electric vehicle outputs a torque instruction, firstly, a request torque is acquired and a judged whether the acquired request torque is positive or negative (S | 02-25-2010 |
| 20100052588 | VEHICLE CONTROLLER AND CONTROL METHOD - By the vehicle controller of the present invention, when the economy mode is selected by a driver, boosting by a converter is limited and output torque of a motor is limited. Even in the economy mode, however, if the driver requests large torque, either the limit on boosting or the limit on output torque is cancelled. As a result, a vehicle controller for a vehicle including a battery, a converter boosting/lowering the battery voltage and a motor operating with the power from the converter is provided, by which unnecessary power consumption is reduced and the torque requested by the driver can be generated. | 03-04-2010 |
| 20100127656 | AC MOTOR DRIVE CONTROLLER - An overmodulation PWM controller includes a voltage instruction calculation unit which calculates a d axis voltage instruction and a q axis voltage instruction in which a voltage amplitude exceeds a peak value of a triangular wave carrier; a voltage instruction correction unit which corrects the d axis voltage instruction and the q axis voltage instruction so that a pulse width modulation voltage applied to an AC motor has a fundamental wave amplitude corresponding to the voltage instruction amplitude, according to the synchronization value K which is the number of the triangular carriers per one cycle of the phase voltage instruction; and a voltage instruction conversion unit which converts the corrected d axis voltage instruction and the q axis voltage instruction into a phase voltage instruction. The pulse width modulation voltage is controlled according to the result of comparison between the phase voltage instruction and the triangular wave carrier. | 05-27-2010 |
| 20100185350 | CONTROL DEVICE FOR ELECTRIC-POWERED VEHICLE, AND ELECTRIC-POWERED VEHICLE WITH CONTROL DEVICE AS WELL AS CONTROL METHOD FOR ELECTRIC-POWERED VEHICLE, AND COMPUTER-READABLE RECORDING MEDIUM BEARING PROGRAM FOR CAUSING COMPUTER TO EXECUTE CONTROL METHOD - A carrier frequency setting unit ( | 07-22-2010 |
| 20100224428 | POWER SUPPLY DEVICE AND VEHICLE INCLUDING THE SAME, CONTROL METHOD FOR POWER SUPPLY DEVICE, AND COMPUTER-READABLE RECORDING MEDIUM HAVING PROGRAM FOR CAUSING COMPUTER TO EXECUTE THAT CONTROL METHOD RECORDED THEREON - When request power required of a power supply device by a driving force generation unit is close to zero, a converter ECU controls first and second converters to prohibit respective amounts of current passage in the first and second converters from simultaneously becoming close to zero. That is, when the request power is close to zero, the converter ECU performs voltage control of the first converter and sets an electric power control value for the second converter subjected to current control (electric power control) to a nonzero value, such that electric power is supplied and received between the first and second converters. | 09-09-2010 |
| 20100231151 | AC MOTOR DRIVE CONTROL DEVICE AND METHOD - An AC motor drive control device includes a control mode judgment unit that performs a judgment based on required voltage amplitude required by a synchronous AC motor, in order to switch units for applying voltage to the AC motor to one of a rectangular wave voltage phase control unit, an overmodulation control unit, and a PWM current control unit. | 09-16-2010 |
| 20100270955 | MOTOR DRIVE CONTROL DEVICE - There is provided a motor drive control device which allows an improvement in fuel efficiency in terms of electric power while preventing the battery voltage from falling below the lower limit as rectangular wave control is performed. A motor drive control device | 10-28-2010 |
| 20110006598 | CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE - A vehicle includes a converter for stepping up power provided from a power storage device, and an inverter for converting the power output from converter and outputting it to an alternating-current motor for driving the vehicle. In the vehicle, a rectangular voltage control unit controls the inverter by means of rectangular wave voltage control that is based on a torque command value and the like, so as to control an output torque of the alternating-current motor. A system voltage control unit controls a system voltage, which is an output voltage of the converter. The system voltage control unit lifts a restriction on a system voltage command value based on an accelerator pedal position and the like, and then increases it. When increasing the system voltage command value during the rectangular wave voltage control for the inverter, a cooperative control unit increases the system voltage command value and the torque command value in a cooperative manner. | 01-13-2011 |
| 20110006723 | MOTOR DRIVE CONTROL APPARATUS, VEHICLE WITH MOTOR DRIVE CONTROL APPARATUS, AND MOTOR DRIVE CONTROL METHOD - In the hybrid vehicle, a boost converter is controlled to make a post-boost voltage or a voltage on the side of an inverter become a target post-boost voltage corresponding to a target operation point of a motor in accordance with a target post-boost voltage setting map that divides an operation region of the motor into a non-boost region and a boost region when a operation point of the motor is included in the boost region. The target post-boost voltage setting map is prepared so that the non-boost region includes a region in which a loss produced by driving the motor when not boosting the post-boost voltages becomes smaller than the loss produced when boosting the post-boost voltage and the boost region includes a region in which the loss produced when boosting the post-boost voltage becomes smaller than the loss produced when not boosting the post-boost voltage. | 01-13-2011 |
