Abstract: An information system includes an in-vehicle terminal that is mounted on a host vehicle and a server that communicates with the in-vehicle terminal. The server includes a running history DB in which a running history of the host vehicle is stored for each driver, a driving skill-level determination unit, a driving skill-level DB in which a driving skill-level determined by the driving skill-level determination unit is stored, and a distribution information control unit that distributes driving assistance information based on the driving skill-level stored in the driving skill-level DB to the in-vehicle terminal. The driving skill-level determination unit determines a driving skill-level of a driver based on the running history stored in the running history DB and a driving skill element definition list representing a difficulty level of driving predefined for each driving skill element.

Abstract: A fixing device is provided with a first rotating member, a second rotating member in contact with the first rotating member, a first drive motor for rotationally driving the first rotating member, a second drive motor for rotationally driving the second rotating member, a torque limiter provided between the second rotating member and the second drive motor, and a pressure adjusting mechanism for adjusting the nip pressure between the first rotating member and the second rotating member. When the nip pressure is greater than the maximum torque that can be transmitted by driving the torque limiter, the second rotating member rotates following the first rotating member and at the same linear speed as that of the first rotating member, and when the nip pressure is equal to or less than the maximum torque, the second rotating member rotates at a linear speed different from that of the first rotating member.

Abstract: A hydraulic system of a construction machine includes: a pump that supplies hydraulic oil to a hydraulic actuator; a control valve on a center bypass line extending from the pump to a tank, the control valve including a bypass passage; an unloading valve on the center bypass line downstream of the control valve; and a controller that controls the unloading valve. The control valve is configured such that an opening area of the bypass passage is greater than an opening area of the unloading valve while an operation signal outputted from an operation device increases from a predetermined value to a first setting value, and such that the opening area of the bypass passage is less than or equal to ¼ of a maximum opening area of the bypass passage when the operation signal is greater than or equal to a second setting value greater than the first setting value.

Abstract: A hydraulic system includes: an operation device that outputs an operation signal corresponding to an operating amount of an operating unit; a variable displacement pump that supplies hydraulic oil to a hydraulic actuator; a control valve interposed between the actuator and pump, the control valve changing a meter-in opening area thereof, so an increase rate of the opening area increases in accordance with increase in the operation signal; a regulator that adjusts a tilting angle of the pump; an unloading valve that defines an unloading flow rate, at which the hydraulic oil is released to a tank; and a controller that, when the operation device is operated, determines a control valve required flow rate so rate is proportional to the meter-in opening area of the control valve, and controls the regulator so a discharge flow rate of the pump is a sum of the control valve and unloading flow rates.

Abstract: An apparatus unit includes two or more apparatuses coupled to each other, the apparatuses including respective casings that are independent of each other. Two or more storage media are attached to one side surface of the casing of one of the two or more apparatuses such that the two or more storage media are adjacent to each other, the two or more storage media each storing characteristic data of a corresponding one of the two or more apparatuses or storing an IP address of a save location of the characteristic data of the corresponding one of the two or more apparatuses.

Abstract: An operating device includes: an operating lever extending in a first direction and including a first end-side part in the first direction, the first end-side part being operable; a casing supporting a first-direction intermediate part of the operating lever; first and second sensors arranged in the casing so as to be spaced apart from each other in a second direction perpendicular to the first direction and be adjacent to a second end-side part in the first direction of the operating lever; and third and fourth sensors arranged in the casing so as to be spaced apart from each other in a third direction perpendicular to the first and second directions and be adjacent to the second end-side part of the operating lever, wherein each of the first to fourth sensors outputs a signal in accordance with a load applied from the operating lever.

Abstract: A hydraulic excavator drive system includes: a first pump connected to a boom main control valve and an arm auxiliary control valve by a first pump line; a second pump connected to a boom auxiliary control valve and an arm main control valve by a second pump line; and a controller that does not move the arm auxiliary control valve when arm crowding operation boom raising operations are performed concurrently. The boom auxiliary control valve moves together with the boom main control valve when the boom raising operation is performed. A boom raising second supply line, which connects the boom auxiliary control valve to a boom raising first supply line between the boom main control valve and a boom cylinder, is provided with a check valve that allows a flow from the boom auxiliary control valve toward a head side of the boom cylinder, but prevents a reverse flow.

Abstract: A hydraulic system includes: a regulator that adjusts a tilting angle of a pump; and a controller that controls the regulator such that a discharge flow rate of the pump is a lower one of an operation-requiring flow rate and a horsepower control flow rate. The controller stores a first horsepower control line and a second horsepower control line lower than the first control line. When an operating point exceeds the first horsepower control line, the controller decreases the tilting angle of the pump; when the operating point falls below the second horsepower control line, the controller increases the tilting angle of the pump. When the operating point exceeds the first control line or falls below the second control line, it is shifted and positioned between the first control line and the second horsepower control line, keeping the tilting angle of the pump as it is.

Abstract: A hydraulic system includes: a regulator that adjusts a tilting angle of a pump; and a controller that controls the regulator such that a discharge flow rate of the pump is a lower one of an operation-requiring flow rate and a horsepower control flow rate. The controller stores a first horsepower control line and a second horsepower control line lower than the first control line. When an operating point exceeds the first horsepower control line, the controller decreases the tilting angle of the pump; when the operating point falls below the second horsepower control line, the controller increases the tilting angle of the pump. When the operating point exceeds the first control line or falls below the second control line, it is shifted and positioned between the first control line and the second horsepower control line, keeping the tilting angle of the pump as it is.

Abstract: A hydraulic drive system of a construction machine includes: an over-center pump connected to a turning motor; a regulator that adjusts tilting angle of the over-center pump; a main pump coupled to over-center pump; and a controller that controls the regulator such that when a turning deceleration operation is performed, the over-center pump's tilting angle decreases in accordance with decrease in a turning operation signal outputted from a turning operation device. The controller: when a pressure accumulation condition satisfied, switches a switching valve to pressure accumulation position to bring an accumulator into communication with a delivery line of the main pump; when a pressure release condition is satisfied, switches the switching valve to a pressure release position to bring accumulator into communication with a suction line of main pump; and when neither the pressure accumulation condition nor pressure release condition is satisfied, switches the switching valve to a neutral position.

Abstract: An information processing device is installed in a vehicle and comprises an action history DB which stores a plurality of action histories including a combination of a content that was played based on an instruction of a user and a situation in which the content was played, and an automatic playing unit which, when a current elapsed time as an elapsed time from a time that an ignition switch of the vehicle was most recently turned ON or a current travel distance as a travel distance from a time that an ignition switch of the vehicle was most recently turned ON matches any one of the action histories of the action history DB, plays a content included in the matching action history.

Abstract: A hydraulic drive system includes a hydraulic pump, a boom-dedicated control valve, a turning-dedicated control valve, a boom-dedicated operation unit, a turning-dedicated operation unit, and a driving control unit.

Abstract: The vehicle assistance system includes an infrastructure sensor installed in a predetermined place to detect an obstacle, an onboard apparatus connected to an onboard sensor which is mounted on the vehicle and which detects an obstacle, and a server installed in a place different from that of the infrastructure sensor. In the infrastructure sensor, the abnormality determination unit compares the first obstacle information related to the obstacle detected by the sensor unit and the second obstacle information related to the obstacle detected by the onboard sensor existing in a location different from that of the sensor unit, and determines whether or not the sensor unit or the onboard sensor is abnormal based on the result of this comparison.

Abstract: A liquid-pressure driving system includes: a pump connected to an actuator through two pressure liquid passages; pressurizing mechanisms interposed on the passages and applying pressure to the operating oil returning from the actuator; a low pressure selector valve connected to parts of the passages and introducing to a cooling passage the operating liquid having lower pressure between the operating liquids flowing through the two pressure liquid passages; a restrictor mechanism interposed on the cooling passage; a cooler apparatus interposed on the cooling passage downstream of the restrictor mechanism, the cooler apparatus cooling the operating liquid flowing through the cooling passage; and a pressure liquid returning mechanism connected to parts of the two pressure liquid passages, each of the parts being at one side of the corresponding pressurizing mechanism close to the pump, the pressure liquid returning mechanism returning the cooled operating liquid to the two pressure liquid passages.

Abstract: A hydraulic drive unit includes: a pump; a pair of supply-discharge lines; a valve block; a sealed tank; a suction line that leads hydraulic oil in the sealed tank to the pump; a connecting line that connects an air vent port of the pump to the suction line; and a gas-liquid separator that separates air and the hydraulic oil flowing through the connecting line from each other. The pump is disposed upward of the valve block and the sealed tank in a vertical direction.

Abstract: Provided is a vehicle control system that can create a route using only an available road in advance when it is scheduled in advance that a part of a road is unavailable. The vehicle control system includes in-vehicle devices each mounted on a corresponding one of a plurality of vehicles and a computing device. The in-vehicle device receives a vehicle allocation plan including time and travel route information from the computing device. The computing device includes a storage unit that stores a vehicle allocation request, map information, and occupation information. The vehicle allocation request includes constraints on a first place, a second place, and time. The map information includes information relating to connection of roads on which a vehicle travels. The occupation information includes a section and time of a road that is occupied and unavailable for traveling.

Abstract: Provided is a disinfectant against Legionella, including an iron salt as an active ingredient. Examples of the iron salt include ferrous salts such as iron (II) sulfate (ferrous sulfate), and ferric salts such as ammonium iron (III) sulfate (ferric ammonium sulfate). Provided is a method for treating water, including bringing target water into a state in which the target water contains an iron salt or an iron ion, thereby suppressing or inhibiting proliferation of Legionella existing in the target water. The present invention can sterilize and disinfect Legionella existing in, for example, bathtub water and air-conditioning cooling tower water, with high safety and sense of security in a simple and easy manner.

Abstract: A hydraulic pressure supply device includes: a hydraulic pump capable of changing a discharge capacity; an electric motor capable of changing a rotational frequency; a discharge capacity adjustment mechanism capable of adjusting the discharge capacity of the pump between a maximum and minimum discharge capacity; a pressure detector configured to detect pressure of an operating liquid discharged from the pump; a rotational frequency detector configured to detect the rotational frequency of the motor; and a controller configured to control operations of the motor and adjustment mechanism based on the rotational frequency, detected by the detector, to keep pressure of an actuator at arbitrary pressure, wherein, the controller controls the operation of the adjustment mechanism so the discharge capacity of the pump becomes a set lower limit discharge capacity. The set lower limit discharge capacity is set to be larger than the minimum discharge capacity and be adjustable by the controller.

Abstract: A hydraulic system includes: a single-rod hydraulic cylinder; a variable displacement pump driven by a rotating machine; a rod-side supply line and a head-side supply line that connect the pump to the hydraulic cylinder; a first tank line that is branched off from the rod-side supply line and connects to a tank; a second tank line that is branched off from the head-side supply line and connects to the tank; and a flow rate adjuster. The flow rate adjuster is configured to: switch a delivery capacity of the pump to a first setting value when a pressure of the head-side supply line is higher than a pressure of the rod-side supply line; and switch the delivery capacity of the pump to a second setting value less than the first setting value when the pressure of the rod-side supply line is higher than the pressure of the head-side supply line.

Abstract: A drive system of a construction machine includes: a controller that controls a fuel injection valve, so an actual rotation speed of an engine is adjusted to a setting rotation speed; a hydraulic circuit including a boom cylinder supplied with hydraulic oil from a pump driven by the engine, configured so energy is regenerated as motive power owing to the pump being driven by pressurized oil discharged from the boom cylinder at boom lowering; and a boom operation device including a boom operation lever. At boom lowering, the controller cuts a fuel supply to the engine when a cutting condition is satisfied, which is defined to include that an operating amount of the lever is less than or equal to a first threshold, and resumes the fuel supply when the cutting condition stops being satisfied or when the actual rotation speed of the engine becomes less than a second threshold.