Abstract: A bicycle part includes a housing and a lid. The housing includes an inner peripheral portion, an outer peripheral portion, an end wall portion and a connecting portion. The outer peripheral portion is spaced radially outward from the inner peripheral portion with respect to a center axis of the enclosed area. The end wall portion interconnects the inner peripheral portion and the outer peripheral portion to at least partly define an internal space. The connecting portion interconnects the inner peripheral portion and the outer peripheral portion. The lid overlies the internal space. The lid is welded to the inner peripheral portion along an inner weld path and the outer peripheral portion along an outer weld path. The lid is further welded to at least part of the connecting portion of the housing a connecting weld path connecting the inner weld path and the outer weld path.

Abstract: A bicycle motor unit comprises an electric motor and a transmitting structure. The electric motor is configured to generate a driving force. The transmitting structure is coupled to the electric motor to transmit the driving force from the electric motor to an actuated device of a bicycle. The transmitting structure includes a first rotatable member, a second rotatable member, and a resisting structure. The first rotatable member is rotatable about a rotational axis. The second rotatable member is rotatable relative to the first rotatable member about the rotational axis. The resisting structure is at least partially provided radially between the first rotatable member and the second rotatable member with respect to the rotational axis so as to resist relative rotation between the first rotatable member and the second rotatable member.

Abstract: A derailleur for a human-powered vehicle comprises a base member, a movable member, a linkage, an electrical actuator, a first biasing member, and a second biasing member. The base member is configured to be attached to a vehicle body of the human-powered vehicle. The movable member is configured to be movable relative to the base member in a first direction and a second direction different from the first direction. The linkage is configured to movably connect the movable member to the base member. The electrical actuator is configured to operatively move the movable member relative to the base member. The first biasing member is configured to deform if first external force is applied to move the movable member in the first direction. The second biasing member is configured to deform if second external force is applied to move the movable member in the second direction.

Abstract: Provided is a communication system including a controller installed on a hand of a user, an operation target remotely operated by the controller, and a relay apparatus that performs relaying between the controller and the operation target, in which the controller includes a first detection section that detects a motion of fingers of the user, a stimulus providing section that provides an external stimulus to the fingers of the user, and a control section that controls the stimulus providing section, the operation target includes a driving section that performs an action in reference to action information received, and a second detection section that detects the external stimulus to the operation target, and the relay apparatus transmits, to the operation target, the action information based on a detection result from the first detection section, and in reference to a detection result from the second detection section, transmits, to the controller, stimulus provision information for controlling the stimulus pr

Abstract: Disclosed is an operation device that includes a mounting section, a first position detection section, and a stimulus generation section. The mounting section is attached to a hand and fingers of a user. The first position detection section is disposed on the mounting section to detect the positions of the fingers. The stimulus generation section is disposed on the mounting section, placed at a position corresponding to one of the user's fingers, and configured to apply an external stimulus to the user.

Abstract: A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing in accordance with a permitted cadence range and a first threshold of the driving torque.

Abstract: A hub is provided for a human-powered vehicle. The hub comprises a hub axle, a hub body, a sprocket support structure, a detected part and a rotation detection sensor. The hub axle has a center axis. The hub body is rotatably disposed around the center axis. The sprocket support structure is rotatably disposed around the center axis to transmit a driving force to the hub body while rotating in a driving rotational direction around the center axis. The detected part is provided to the sprocket support structure. The rotation detection sensor is configured to detect the detected part to detect rotation of the sprocket support structure around the center axis and being disposed in the hub body.

Abstract: A power conversion device is provided, which includes: a power conversion circuit that performs power conversion between a primary power and a secondary power; a buffer data accumulation circuit that, in a predetermined buffer cycle, repeatedly acquires data sets relating to a state of the power conversion circuit and store the data sets in a ring buffer; a state monitoring circuit that generates a trigger signal in a case where a state of a predetermined monitoring target satisfies a predetermined condition; and a data replication circuit that, in a case where a trigger signal is generated, stores, in a data storage circuit, a plurality of the data sets accumulated in the ring buffer in a target storage period including a time before a generation time of the trigger signal.

Abstract: A component for a human-powered vehicle basically comprises a power source connecting portion, an actuator and a first electronic controller circuitry. The power source connecting portion is connected to a power source. The power source connecting portion includes an attachment surface, a first terminal and a first detection terminal. The actuator is electrically connected to the power source connecting portion. The first electronic controller circuitry controls the actuator with supply current provided from the power source. The first terminal is electrically connected to a power supply terminal of the power source. The first terminal supplies the supply current to the actuator in a state where the first detection terminal is electrically connected to a second detection terminal of the power source.

Abstract: A battery temperature regulation device includes: fill port provided in a circuit in which coolant circulates; a pump; a plurality of heat exchangers; a solenoid valve arranged in a branching path of the circuit and switching the flow path; a controller controlling switching of the flow path; a heat exchange circuit performing heat exchange with the battery; a first circuit; and a second circuit, the fill port is arranged in either of the first and second circuit, and when filling coolant from the fill port, by performing open/close control of the solenoid valve after operation of the pump, and switching the circuit to the fill port arrangement circuit in which the fill port is arranged, air remaining in the circuit is discharged from the fill port.

Abstract: A composite microparticle manufacturing method includes: a step of preparing a first selective element-containing raw material and a second selective element-containing raw material, the first selective element-containing raw material containing one or more first selective elements selected from a copper element, a molybdenum element, and a silver element, the second selective element-containing raw material containing one or more second selective elements selected from titanium, germanium, silicon, tin, aluminum, zinc, zirconium, hafnium, iron, yttrium, niobium, tantalum, calcium, magnesium, indium, tungsten, molybdenum, and nickel; and a composite microparticle generation step of introducing both of the prepared raw materials into thermal plasma, evaporating the raw materials, and cooling the evaporated raw materials to generate composite microparticles including base particles and first selective element-containing microparticles being present on surfaces of the base particles, the base particles having an

Abstract: An operation adjustment system includes estimation circuitry and generation circuitry. The estimation circuitry is configured to generate a calculation model based on a plurality of pairs of a parameter set and an evaluation index. The calculation model indicates a relationship between the parameter set and the evaluation index. The parameter set affects an operation of a motor control device. The evaluation index relates to a machine operated according to the parameter set by the motor control device. The generation circuitry is configured to generate a new parameter set based on the calculation model in order to update the calculation model with the new parameter set.

Abstract: A control device for a human-powered vehicle includes an electronic controller. The human-powered vehicle includes a motor that applies a propulsion force to the human-powered vehicle and a transmission that shifts a transmission ratio of the human-powered vehicle between a plurality of shift stages. The electronic controller is configured to control the motor. The electronic controller is configured to decrease an upper limit value of an output of the motor in an up-shift operation. The electronic controller is configured to decrease the upper limit value in a down-shift operation. The electronic controller is configured to control the motor so that the upper limit value in the up-shift operation performed between two predetermined ones of the shift stages that differ in the transmission ratio by one stage differs from the upper limit value in the down-shift operation performed between the two predetermined ones of the shift stages.

Abstract: A wearable sensing device includes clothing worn by a user, and a sensor unit including a sensor and being attached to the clothing. The sensor unit includes: a body; first and second bracket parts provided to sandwich the body and fixed to the clothing; and first and second hinge parts respectively coupling the body and first and second bracket parts. The first and second bracket parts of the sensor unit are respectively attached to first and second sensor attachment parts provided on clothing 22L.

Abstract: A wearable sensing device includes: a sensor provided on clothing worn by a worker wearing conductive work clothes; and an electronic device connected to the sensor. The electronic device includes a ground connection part that makes contact with the conductive work clothes to be electrically connected to the conductive work clothes.

Abstract: A hub assembly is provided for a human-powered vehicle. The hub assembly is basically provided with a hub axle, a hub body, an electric component and a user input device. The hub body is rotatably mounted on the hub axle to rotate around a rotational center axis of the hub assembly. The user input device is electrically coupled to the electric component.

Abstract: A control device is provided for controlling a transmission device of a human-powered vehicle. The control device includes an electronic controller configured to control the transmission device. The electronic controller is configured to restrict actuation of the transmission device for a predetermined period from a first time after an action of the transmission device is completed. The electronic controller is configured to change the predetermined period in accordance with a traveling state of the human-powered vehicle.

Abstract: A bicycle component includes a base member, a movable member, a link member, an actuator, and a battery holder. The link member movably couples the movable member to the base member. The actuator is operatively coupled to the link member to move the link member. The battery holder is detachably attached to the link member. The battery holder includes a battery holding portion configured to hold a battery and a flexible element electrically connecting the battery holding portion to the actuator.

Abstract: This power conversion device comprises: a power conversion circuit for converting primary side power to secondary side power; a program storage unit for storing a plurality of program modules and sequence data; an extension program acquiring unit for acquiring an extension program and storing the extension program into an extension program storage unit; and a control unit for sequentially calling and executing two or more modules to be executed from the plurality of program modules on the basis of the sequence data and controlling the power conversion circuit on the basis of an execution result. The plurality of program modules includes an extension module. When the called module to be executed is the extension module, the control unit executes the extension program by including the extension program in the extension program storage unit in the extension module.

Abstract: The determination device includes an acquisition unit that acquires a vibration signal generated when the position of an object is switched, and a determination unit that determines the state of the object by using the vibration signal.