Taiyo Yuden Co., Ltd.

Microspace Corporation

Kazuo Asanuma

Yasuo Hosaka

Masato Tanaka

Satoru Shimizu

Kuniaki Kawagoe

Hirokazu Shirakawa

Hiromi Hagiwara

Mamoru Sakamoto

Yoji Imai

Akifumi Kosugi

Akinobu Maekawa

Tatsuya Sakurai

Toshiyuki Kagawa

Norio Kurisu

Hidehumi Nakagome

A solar power generation fault diagnosis device includes one or more processors configured to perform the following: receiving signals indicating an electrical quantity output from a solar cell to acquire quantity information indicating the electrical quantity output from the solar cell; calculating a first quantity value relating to the electrical quantity based on the quantity information; implementing a low-pass filter unit so as to output a second quantity value from the first quantity value; determining a state of the solar cell based on a result of comparison between the first quantity value and the second quantity value; and outputting the determined state of the solar cell.

Solar power generation fault diagnosis device and solar power generation fault diagnosis method

A wireless connection device for establishing a connection path between a parent device and a child device through one more relay devices includes one or more processors that determines whether the signal strength between the child device and each of the relay devices is greater than or equal to a first threshold value; when the signal strength is determined to be greater than or equal to the first threshold value, selects, from among a plurality of possible communication paths for which the signal strength has been determined to be greater than or equal to the first threshold value, a communication path that minimizes a hop count; and, when the signal strength is less than the first threshold value for all of the plurality of possible communication paths, selects, from among the plurality of possible communication paths, a communication path that has the largest signal strength.

Wireless connection device

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 communication configuration device installed in at least one of a plurality of communication terminals that are designed to be connected in a manner to establish a wireless network includes one or more processors receiving, through a network interface, setting information providing communication settings for all of the plurality of communication terminals; evaluating the second setting information; and if the setting information indicates that one or more of the settings of the communication terminal in which the communication configuration device is installed need to be changed, causing a corresponding setting in the original setting information stored in a storage unit to be replaced with an updated setting indicated in the setting information so that the updated setting is applied to said communication terminal.

Communication configuration device

A motor driving control apparatus in embodiments includes: a first signal generator to generate a first signal representing any one rotation angle section of plural rotation angle sections according to a sensor signal that changes every predetermined rotation angle of a rotor; a measurement unit to measure a period of each of the rotation angle sections; a prediction unit to predict a period of a next rotation section based on one or plural measured rotation angle sections; a second signal generator to generate a second signal representing a relative rotation angle of the rotor in the next rotation angle section for each period obtained by dividing the predicted period by a predetermined number; and a third signal generator to generate a third signal corresponding to a rotation angle of the rotor based on the first and second signals.

Motor driving control 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.

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

This motor driving control apparatus includes: a smoothing processing unit that executes smoothing processing using values of pedal input torque at plural points to calculate a first smoothed torque value; an insufficiency output unit that obtains a rate of points at which input of the pedal input torque is insufficient among the plural points; an assist torque calculating unit that performs calculation processing of mixing the first torque value calculated by the smoothing processing unit and the pedal input torque in accordance with output of the insufficient output unit to calculate assist torque; and a driving processing unit that performs processing to drive a motor using the assist torque calculated by the assist torque calculating unit.

A motor drive control device of an electric power-assisted vehicle that has a gear shifter and a motor, and in which a first ratio of the number of drive rotations in the motor to the number of drive rotations of a pedal changes based on changes in a gear ratio in the gear shifter, includes: a gear ratio obtaining part that obtains the gear ratio of the gear shifter; and a calculating part that calculates an assist torque, which is a target value for a drive torque of the motor, from the pedal input torque based on the gear ratio obtained by the gear ratio obtaining part.

A controller for driving a motor in a motor driven vehicle, provided with: a detection part, a control coefficient computing part, and a control part. The control coefficient computing part identifies, as a first vehicle speed, the speed of the vehicle when the detection part detects a start signal for regeneration control, the control coefficient computing part assigning a prescribed value to a control coefficient that determines a value of a control parameter that controls the motor relative to a target value of the control parameter. The target value is a value of the control parameter at which the motor achieves a desired power generation efficiency, and the control coefficient computing part increases the control coefficient if a current vehicle speed becomes faster than the first vehicle speed, and decreases the control coefficient if the current vehicle speed becomes slower than the first vehicle speed.

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Tokyo, Japan

Kazuo Asanuma