Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Denso Corporation

Hideto Hanada

Masaki Okamura

Ken Kuretake

Takashi Kawai

Hiroshi Tsujii

Masanori Sugiura

Masayoshi Suhama

Kazuhito Hayashi

Kenji Yamada

Toshifumi Yamakawa

Hiroki Ohtani

Ken Iwatsuki

Makoto Nakamura

Naoyoshi Takamatsu

Katsuhiro Asano

Hideo Nakai

Yukio Inaguma

Hiroaki Kioka

Kosuke Hirano

Toshiya Hashimoto

Masanori Ohmi

Tomohiro Kaneko

Masahiko Osada

Satoru Katoh

Mikio Saito

Hiroyuki Oyanagi

Natsuki Nozawa

Takeshi Tachibana

Yuki Sugiyama

Hideaki Saida

Masato Hanai

Sojiro Yokoyama

Shuuichi Nagata

The present invention minimizes system loss during execution of intermittent boosting. A boost converter control apparatus has: a target value setting device for setting a target value of output voltage that minimizes a loss of a power supply system including a DC power supply, a boost converter, and a loading apparatus; an intermittent controlling device for executing an intermittent process of boost control in such a manner that the output voltage is maintained in a range including the set target value; an average value calculating device for calculating an average value of the output voltage in an execution period of the intermittent process; and a target value correcting device for correcting the set target value to reduce a deviation between the calculated average value and the set target value.

Boost converter control apparatus

The present invention prevent a shortage of the output when an intermittent boost is executed. A control apparatus for controlling a boost converter that can boost power supply voltage by boost control has: an intermittent controlling device for executing the intermittent boosting in such a manner that output voltage is maintained in a voltage variation allowable range including a target value on the basis of the detected output voltage of the boost converter; an average value calculating device for calculating an average value of the output voltage in an execution period of the intermittent boosting; and a target value correcting device for correcting the set target value to increase it when the calculated average value is less than the target value and is less than a required voltage value of a loading apparatus.

A carrier frequency setting unit sets a carrier frequency based on a torque command and a motor rotation number of a motor generator. A PWM signal producing unit produces phase modulated waves corresponding to respective phase voltage commands, and produces respective phase PWM signals corresponding to a relationship in magnitude between the respective phase modulated waves and a carrier having the carrier frequency. A PWM center control unit produces a PWM center correction value for variably controlling the PWM center when the carrier frequency is lower than a predetermined frequency, and provides the same to the PWM signal producing unit.

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

An ECU sets target value of a system voltage based on an electric power loss of a motor generator and an inverter and controls a voltage boost converter. The ECU calculates the target value of the system voltage using a function expression generated, for each operating point of the motor generator, by approximating a loss characteristic which represents change of the electric power loss with respect to change of the system voltage, by a quadratic expression or a linear expression of the system voltage.

Motor drive apparatus and vehicle including the same, and method for controlling motor drive apparatus

A motor drive apparatus drives a motor generator using electric power provided from a DC power supply. The motor generator rotates a rotor provided with a permanent magnet using a current magnetic field generated by passing a drive current through a coil of a stator. The motor drive apparatus includes an inverter configured to convert DC electric power provided from the DC power supply into AC electric power for driving the motor generator. An ECU of the motor drive apparatus controls the inverter such that an offset current is superimposed on at least one phase of the coil of the stator and a temperature of the permanent magnet provided at the rotor is raised.

Motor drive apparatus and vehicle with the same mounted thereon

A motor drive control device includes a battery, a converter, an inverter, and a control section for outputting control signals to the converter and the inverter. The control section has a first map and a second map regarding control of the alternating-current motor and further includes a map switching section for switching from control based on the first map to control based on the second map in accordance with conditions of the battery.

Motor drive control device

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.

Control device and control method for vehicle

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.

Motor drive control apparatus, vehicle with motor drive control apparatus, and motor drive control method

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.

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 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. Regardless of the sign of the request torque, it is judged whether the eco-switch is ON. If the request torque has a positive sign and the eco-switch is OFF, a map A is selected. If the eco-switch is ON, a map B which limits the maximum torque to a low value for the map A is selected. If the request torque has a negative sign, a map C is selected regardless of the eco-switch ON/OFF state and the maximum torque is not limited.

Electric vehicle control device

In response to a starting instruction of an engineat a gearshift position of a gearshift leverset to a parking position, the engineand motors MGand MGare controlled to motor and start the enginewith output of a torque from the motor MGto keep a rotational position of a rotor in the motor MGat a preset reference position. This arrangement enables the engineto be motored and started even in the state of separation of a ring gear shaftfrom a driveshaftby means of a transmissionand locking of drive wheelsandby means of a parking lock mechanism

Vehicle and vehicle control method

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.

Motor driving system and controlling method of the same

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.

Vehicle controller and control method

When a target operation point of either a motor MGor a motor MGis included in a resonance range specified by operation points of the motor MGor the motor MGin the occurrence of resonance in a booster converter, a hybrid vehicle controls the booster converter to make the voltage on the side of inverters approach to a preset target boosted voltage that is higher than the voltage on the side of the battery, while controlling the inverters by sine-wave control.

Motor drive control apparatus, vehicle equipped with motor drive control apparatus, and motor drive control 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.

Growing community of inventors

Toyota, Japan

Hideto Hanada