Taiyo Yuden Co., Ltd.

Kabushiki Kaisha Toshiba

Microspace Corporation

Tokyo Shibaura Denki Kabushiki Kaisha

Taiyo Yudenco., Ltd.

Shimano Inc.

Taiyo Yuden Corp.

Sony Interactive Entertainment Inc.

Yasuo Hosaka

Hitoshi Nagato

Kazuo Asanuma

Hideyuki Nakao

Shuzo Hirahara

Masato Tanaka

Satoru Shimizu

Koichi Ishii

Teruo Murakami

Hirokazu Shirakawa

Taichi Yanaoka

Tadayoshi Ohno

Yuko Nomura

Yuzo Koike

Kuniaki Kawagoe

Hiromi Hagiwara

Mamoru Sakamoto

Yoshikuni Matsumura

Mitsuaki Ootani

Akinobu Maekawa

Teruki Oitome

Yoshihisa Konno

Mitsuaki Kohyama

Hidekazu Sekizawa

Toshikazu Matsui

Kiyoshi Yamada

Taihei Nishihara

Masafumi Mori

Masasumi Yana

Yoshiyuki Wasada

Tsutomu Kanai

Takao Saida

Akifumi Kosugi

Yoji Imai

Naoyuki Nishigata

Tatsuya Sakurai

Yuji Ebinuma

Toshiyuki Kagawa

Hideyuki Nakano

Hidefumi Nakagome

Kiichi Kikuchi

Kenji Kaneta

Hajime Hasegawa

Teruaki Kawahigashi

Shuzo Miura

Yuto Kajiya

Hidehumi Nakagome

Yuuji Suzuki

Yuuji Ebinuma

Kichi Kikuchi

A motor driving control apparatus for a motor-assisted vehicle such as a motor-assisted bicycle includes: an inverter configured to drive a motor; and a controller configured to control the inverter to start regeneration after lapse of a first time period since a second predetermined time period elapsed or gradually increase a regeneration amount, when a state that an acceleration of a vehicle on which the motor is embodied is negative and equal to or less than a first predetermined value continues for the second predetermined time period.

Motor driving control apparatus and method and motor-assisted vehicle

This motor driving control apparatus has (A) an inverter unit configured to drive a motor; (B) a separation switch configured to separate a power source from the inverter unit; and (C) a controller configured to instruct the separation switch to separate the power source from the inverter unit and control the inverter unit to perform switching according to a speed and a braking target torque, upon detecting an event that braking should be performed without passing a regenerative current to the power source from the inverter unit. By introducing the separation switch that operates as described above, it becomes possible to perform control so as to consume the power by the motor itself without passing the regenerative current to the power source such as a battery.

Motor driving control apparatus and electric apparatus

This control apparatus includes (A) a first connecting part, which is connected with a driving control apparatus for controlling driving of a power unit for assisting a human power or with the power unit, and through which a current relating to charging and discharging of an electrical power storage device flows, (B) a second connecting part, which is provided separately from the first connecting part, and through which a current relating to charging to the electrical power storage device flows via an electrical connection, and (C) a controller to control charging and discharging of the electrical power storage device, which are performed by using a current, which flows in the first connecting part and/or the second connecting part.

Control apparatus, electrical power storage apparatus and system for mobile object

An embodiment of this invention relates to a motor driving control apparatus for a moto-assisted vehicle, which includes a driving unit configured to drive a motor, and a controller configured to determine a regeneration amount based on a first speed of a vehicle that moves by the motor driven by the driving unit, and control the driving unit according to the regeneration amount, wherein the first speed is a speed at a first timing when it is detected that a brake of the vehicle is changed to OFF, or is determined based on temporal change in an acceleration of the vehicle.

Motor driving control apparatus and motor-assisted vehicle

In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of the pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a backward rotation amount of the pedal while the rotation direction of the pedal is backwards, the backward rotation amount being obtained by the pedal rotation sensor.

Controller for driving a motor, and electric power assisted vehicle

A motor driving control apparatus in the embodiment includes: a first controller configured to control powering and regeneration of a motor; a second controller configured to control the first controller; and assistant circuitry configured to activate the second controller in a stop state, when a counter electromotive force caused by the motor, which is rotated without control by the first controller, satisfies a predetermined condition, before a power-on instruction for the motor driving control apparatus is made or in a state where the power-on instruction for the motor driving control apparatus is not made.

Motor driving control apparatus and electrically assisted vehicle

A regenerative controller for an electric motor includes: a wheel rotation detection unit provided on a vehicle and detecting a rotation amount of a wheel that is driven via a crank rotated by human power; a crank rotation detection unit that detects a rotation amount of the crank; and a controller that calculates a first value based on the rotation amount of the wheel, a second value based on the rotation amount of the crank, and a control parameter based on at least the second value among the first value and the second value for regenerative control of a power storage device regeneratively charged by an electric motor that supplies driving power to the wheel, the controller controlling a regeneration amount of the electric motor in accordance with the control parameter.

Regenerative controller for electric motor, regenerative driver for electric motor, and power-assisted vehicle

A motor driving apparatus includes a driving unit configured to drive a motor according to a torque inputted by a rotation input from a human being; and a controller configured to control driving of the driving unit according to a relationship between an accumulated value of first amounts that correspond to the rotation input from the human being and an accumulated value of second amounts that correspond to rotation of a rotating object driven by the motor. The controller may be further configured to cause the driving unit to suppress driving of the motor when an accumulated difference that is calculated by subtracting the accumulated value of the second amounts from the accumulated value of the first amounts is equal to or less than a predetermined threshold.

Motor driving apparatus

This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative 5 braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.

Motor driving control apparatus

In one aspect, a controller for driving a motor of the present invention includes a driving control unit that controls driving of a motor, and a regenerative control unit that instructs the driving control unit to start regeneration when a signal from a pedal rotation sensor that detects a rotation direction of a pedal indicates that the rotation direction of the pedal is backwards, the regenerative control unit controlling an amount of the regeneration in accordance with a rotation amount of the pedal while the rotation direction of the pedal is backwards, the rotation amount being obtained by the pedal rotation sensor.

This motor driving control apparatus includes (A) a driving unit that drives a motor, and (B) a regeneration control unit that controls the driving unit so as to generate a regenerative braking force in accordance with a vehicle acceleration, a vehicle speed and a pedal-rotation converted speed that is obtained from a pedal rotation.

A regenerative brake device for a vehicle includes a manual brake configured to apply a brake to a wheel of the vehicle by a manual operation of a brake lever; a motor configured to be coupled to a wheel of the vehicle, the motor being driven by a power from a battery, and also alternatively acting as a regenerative brake that charges the battery with an electromotive force of the motor; a brake sensor that detects a manual brake application point at which the manual brake is actuated from an operation amount of the brake lever; and a power control unit that performs regenerative power control for charging the battery with the electromotive force of the motor based on an output signal from the brake sensor so that the regenerative brake is generated in accordance with the operation amount of the brake lever.

Regenerative brake device and motor-assisted vehicle provided with the same

An appropriate motor control in accordance with a pedal operation of a driver is to be achieved. A motor drive control device according to the present invention is a motor drive control device for an electric power-assisted vehicle that has one-way clutches respectively provided for a motor drive system and for a pedal drive system. The motor drive control device according to the present invention includes: a first calculating part that calculates a pedal rotation conversion speed that is converted from a pedal rotation; and a second calculating part that calculates a second target torque for a motor based on the pedal rotation conversion speed, during a period in which a first target torque derived from a pedal torque is not detected.

Motor drive control device

A motor drive control apparatus for performing motor control that is stable and has a good efficiency includes: a speed processing unit that generates a first value by converting a second value corresponding to a current speed into a duty ratio; a torque processing unit that generates a third value by converting a fourth value corresponding to a target torque into the duty ratio; and a drive unit that controls switching by a switch included in a complementary switching amplifier by an average duty ratio corresponding to a sum of the first value and the third value to drive a motor connected to the complementary switching amplifier.

A controller for driving a motor has: an input part that receives, from each of two brake sensors, a signal indicating a corresponding brake is in an ON state or a signal indicating that the brake is in an OFF state; a control coefficient computing part that increases a control coefficient relative to a regeneration target value along a first slope when a first signal indicating only one of the brakes is in an ON state is received from the input part, the control coefficient computing part increasing the control coefficient along a second slope when a second signal indicating both brakes are in an ON state is received from the input part, the second slope rising faster than the first slope; and a control part controlling driving of the motor in accordance with the regeneration target value and the control coefficient computed by the control coefficient computing part.

Controller for driving a motor and electric power-assisted vehicle

Growing community of inventors

Tokyo, Japan

Yasuo Hosaka