Abstract: A tractor includes a working motor, a work machine including a roller configured to rotate by an output from the working motor, a support mechanism configured to support the work machine such that a working posture and a retracting posture are achievable, and a control device. The control device executes: an adherence amount acquisition process of acquiring an estimated adherence amount as an estimated value for the amount of mud attached to the roller; and a mud removal process of, when the estimated adherence amount is equal to or more than a determination adherence amount, removing the mud from the roller by driving the working motor in a state where the work machine takes the retracting posture.

Abstract: Provided is a control device of a working vehicle including a prime mover and a driving mechanism that drives an implement based on power of the prime mover, wherein the control device is configured to obtain a steering angle of the working vehicle, and detect switching between tasks performed by the working vehicle in a farm field, when the steering angle is equal to or greater than a predetermined angle indicating the switching between tasks.

Abstract: A method for inspecting an energy storage device, the method includes: estimating a degree of degradation of the energy storage device; determining, based on the estimated degree of degradation, a measurement condition such that time required to measure a full charge capacity of the energy storage device decreases or increases; and measuring the full charge capacity according to the determined measurement condition.

Abstract: Provided are a thermal bonding sheet capable of suppressing inhibition of sintering of sinterable metallic particles by an organic component, thereby imparting sufficient bonding reliability to a power semiconductor device, and a thermal bonding sheet with a dicing tape having the thermal bonding sheet. A thermal bonding sheet has a precursor layer that is to become a sintered layer by heating, and the precursor layer includes sinterable metallic particles and an organic component, the precursor layer has a phase separation structure that is a sea-island structure or a co-continuous structure, and in a SEM surface observation image on at least one surface of the precursor layer, a maximum value among each diameter of the largest inscribed circle for a region occupied by each phase of the phase separation structure is 1 ?m or more and 50 ?m or less.

Abstract: An electrified tractor includes a vehicle body, an electric motor, a battery, an inverter configured to control input-output electric power of the battery, a wheel for traveling, and a control device. On condition that the electrified tractor travels inside a restriction area determined in advance as one condition, the control device controls the inverter such that the input-output electric power of the battery falls within a specific electric power range determined in advance. The control device determines whether or not there is a possibility that the electrified tractor moves from the restriction area to outside the restriction area. In a case where an affirmative determination is made in a determination process during a restriction process, the control device expands the specific electric power range as compared with a case where a negative determination is made in the determination process.

Abstract: The control device includes an acquisition unit that acquires a first index value that is an index of a deterioration state of the power storage device, and a lower limit setting unit that lowers a lower limit value of an allowable range for a second index value indicating a power storage state of the power storage device, when the first index value acquired by the acquisition unit indicates a predetermined degree of deterioration or more.

Abstract: A sheet for heat bonding, having a pre-sintering layer that becomes a sintered layer by being heated, and an adhesion layer.

Abstract: A battery has an SOC-OCV characteristic having a flat region. When a stage change detecting unit detects an occurrence of stage change during traveling of an electrified vehicle, a discharge current integrating unit calculates a discharge current integrated amount. When external charging is started, a charge current integrating unit calculates a charge current integrated amount until the battery is fully charged. A full charge capacity calculating unit calculates a full charge capacity based on a storage amount at a time of the stage change, the discharge current integrated amount, and the charge current integrated amount.

Abstract: ECU evaluates high-rate degradation of a lithium-ion battery, using a score and an in-plane score. The score is an index for evaluating unevenness in salt concentration of an electrode body in a lamination direction of the electrode body. The in-plane score is an index for evaluating unevenness in salt concentration of the electrode body in an in-plane direction of the electrode body. For each computing cycle, ECU calculates a current score, and calculates a current in-plane score based on an SOC (State Of Charge) of the lithium-ion battery. When the absolute value of an in-plane integrated score is beyond a reference value, ECU evaluates the high-rate degradation based on the current score, the current in-plane score, and a degradation score which is obtained by integrating previous scores beyond a deadband. When the absolute value is below the reference value, ECU evaluates the high-rate degradation, based on the degradation score.

Abstract: An electrified tractor includes a vehicle body, a working machine, an electric motor, a battery, an inverter that controls input-output electric power of the battery. The electrified tractor includes a control device that controls the inverter. The control device executes a restriction process, a charging rate calculation process and a relaxation process. In the restriction process, the control device controls the inverter such that the input and output of the battery is restricted within a prescribed electric power range, when a state of the battery satisfies a restriction condition. In the charging rate calculation process, the control device calculates a charging rate of the battery when it is assumed that a work is finished in a farming field, as an estimated charging rate. In the relaxation process, the control device expands the prescribed electric power range, when the estimated charging rate is higher than a first prescribed charging rate.

Abstract: The battery system includes a secondary battery, a voltage sensor, a current sensor, a temperature sensor, and a processor. The processor is configured to calculate a polarization overvoltage by subtracting a voltage drop amount caused by a DC resistance and a reactive resistance of the secondary battery determined in accordance with a temperature and an SOC of the secondary battery from a voltage difference between OCV and CCV of the secondary battery.

Abstract: ECU evaluates high-rate degradation of a lithium-ion battery, using a score and an in-plane score. The score is an index for evaluating unevenness in salt concentration of an electrode body in a lamination direction of the electrode body. The in-plane score is an index for evaluating unevenness in salt concentration of the electrode body in an in-plane direction of the electrode body. For each computing cycle, ECU calculates a current score, and calculates a current in-plane score based on an SOC (State Of Charge) of the lithium-ion battery. When the absolute value of an in-plane integrated score is beyond a reference value, ECU evaluates the high-rate degradation based on the current score, the current in-plane score, and a degradation score which is obtained by integrating previous scores beyond a deadband. When the absolute value is below the reference value, ECU evaluates the high-rate degradation, based on the degradation score.

Abstract: A problem is to provide a sheet having a pre-sintering layer, the thickness of which following sintering is such as to be capable of relieving stresses. Solution means relate to a sheet comprising a pre-sintering layer. Viscosity at 90° C. of the pre-sintering layer is not less than 0.27 MPa·s. Thickness of the pre-sintering layer is 30 ?m to 200 ?m.

Abstract: An electrified tractor includes a vehicle body, a working machine, an electric motor, a battery, an inverter that controls input-output electric power of the battery. The electrified tractor includes a control device that controls the inverter. The control device executes a restriction process, a charging rate calculation process and a relaxation process. In the restriction process, the control device controls the inverter such that the input and output of the battery is restricted within a prescribed electric power range, when a state of the battery satisfies a restriction condition. In the charging rate calculation process, the control device calculates a charging rate of the battery when it is assumed that a work is finished in a farming field, as an estimated charging rate. In the relaxation process, the control device expands the prescribed electric power range, when the estimated charging rate is higher than a first prescribed charging rate.

Abstract: A semiconductor device of an embodiment includes: a wiring board; a semiconductor chip mounted on the wiring board; and a resin-containing layer bonded on the wiring board so as to fix the semiconductor chip to the wiring board. The resin-containing layer contains a resin-containing material having a breaking strength of 15 MPa or more at 125° C.

Abstract: When it is determined that a tractor is located in a farm field, a first handling process of performing a first treatment for handling an abnormality when a first condition has been satisfied and a second handling process of performing a second treatment for handling an abnormality when a second condition has been satisfied are performed. The first condition is a condition that is satisfied when the second condition has been satisfied and that is satisfied in some situations in which the second condition has not been satisfied.

Abstract: A battery control device includes a processor that is configured to estimate a full charge capacity of a battery based on an amount of current supplied to the battery from a start of charging to an end of charging and voltages of the battery at the start of charging and the end of charging when the battery is charged from a state where a voltage of the battery is below a predetermined start voltage threshold value to a state where the voltage exceeds a predetermined end voltage threshold value, and the battery satisfies a predetermined permission condition.

Abstract: An electrified tractor includes a vehicle body, an electric motor, a battery, an inverter configured to control input-output electric power of the battery, a wheel for traveling, and a control device. On condition that the electrified tractor travels inside a restriction area determined in advance as one condition, the control device controls the inverter such that the input-output electric power of the battery falls within a specific electric power range determined in advance. The control device determines whether or not there is a possibility that the electrified tractor moves from the restriction area to outside the restriction area. In a case where an affirmative determination is made in a determination process during a restriction process, the control device expands the specific electric power range as compared with a case where a negative determination is made in the determination process.

Abstract: A tractor includes: a work machine connected to a vehicle body; an elevator mechanism configured to move the work machine up and down; an electric motor; a battery; an electric leakage detection circuit configured to detect electric leakage in the battery; and a control device. The control device controls the elevator mechanism either in a lowered state or a raised state, the lowered state being a state where the work machine is placed at a position making contact with a ground, the raised state being a state where the work machine is placed at a position distanced from the ground. In a case where the electric leakage detection circuit detects electric leakage in the battery at the time when the elevator mechanism is in the lowered state, the control device performs a state change process of bringing the elevator mechanism into the raised state.

Abstract: Provided is a control device of a working vehicle including a prime mover and a driving mechanism that drives an implement based on power of the prime mover, wherein the control device is configured to obtain a steering angle of the working vehicle, and detect switching between tasks performed by the working vehicle in a farm field, when the steering angle is equal to or greater than a predetermined angle indicating the switching between tasks.