Abstract: A drive system is provided with a first motor generator as a power source, and a multistage gear transmission for changing the speed of output from the first motor generator and transmitting the output to drive wheels. The multistage gear transmission has a plurality of engagement clutches as shifting elements that are meshingly engaged upon movement from a disengaged position. This hybrid vehicle is provided with a start control device where, when a start clutch has been engaged while the vehicle is stopped, the start control device maintains the engagement of the start clutch for a duration that includes when the vehicle is stopped and until the next vehicle start.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab mounted on the upper turning body, an operating information obtaining device configured to obtain operating information, and a processor configured to store the operating information. The processor is configured to obtain the biological information of an operator in the cab and to correlate the biological information and the operating information.

Abstract: A hybrid vehicle start control device is provided for a hybrid vehicle that ensures an EV reverse starting intended by a driver, even when an engagement command is issued to an engagement clutch that selects an ICE gear shift stage, when carrying out EV reverse starting. In this hybrid vehicle, a multistage gear transmission includes an EV shift actuator that selects an EV gear shift stage, and ICE shift actuators that select an ICE gear shift stage. A starting controller operates the EV electric actuator to select EV 1st of the multistage gear transmission at a time of starting, and that carries out an EV starting using the first motor/generator. At a time of an EV reverse starting, the starting controller carries out a control to the operating positions of the ICE shift actuators that prevent the selection of the ICE gear shift stage by the ICE shift actuators.

Abstract: A shovel includes a lower traveling body, an upper rotating body that is rotatably mounted on the lower traveling body, an attachment attached to the upper rotating body, state detecting sensors that detect operational states of components of the shovel and include an attitude sensor that detects an attitude of the attachment, a controller that executes a preset operation based on a detection value detected by the attitude sensor, and a storage that stores detection values detected by the state detecting sensors during execution of the preset operation by the controller in association with the preset operation.

Abstract: An excavator managing device has a communication device, a storage device, and a processing device. The processing device receives machine identification information of an excavator and operation information representing the operation status of the excavator from the excavator through the communication device. In addition, machine identification information of an excavator and failure classification information of the excavator are received from a support device through the communication device. Thereafter, the failure classification information and the operation information are stored in the storage device in association with each other. With the excavator managing device having this configuration, past repair experience can be easily applied to future repair operations.

Abstract: In a hybrid vehicle, rotational speed control on a motor/generator connected to a first engagement clutch is carried out when there is a gear shift request to a gear shift stage at which the first engagement clutch of the multistage gear transmission is meshingly engaged. A transmission control unit is provided for outputting a meshing engagement instruction to the first engagement clutch when a rotational speed feedback control causes a differential rotation speed of the first engagement clutch to be within a range of a synchronization determination rotational speed. Upon executing the rotational speed feedback control on the motor/generator, this transmission control unit reduces the efficacy of the rotational speed feedback control less than before starting of the meshingly engagement, when the meshing engagement of the first engagement clutch is started.

Abstract: A power generation control device is provided for a hybrid vehicle that prevents unintended engagement of a released engagement clutch during idle power generation. An internal combustion engine is operated during idle power generation so that the input-output differential rotation speed of engagement clutches for selectively connecting an electric motor and/or the internal combustion engine to the drive wheel becomes a value greater than or equal to a rotation difference threshold value at which the engagement clutches are not engaged.

Abstract: A vehicle transmission control device is provided in a vehicle having a gear type transmission capable of selecting a plurality of gear shift patterns, and an electric oil pump for supplying lubricating oil to a gear-shifting mechanism. The vehicle transmission control device includes a transmission controller that selects a path having a small load on the lubricated parts from among the plurality of power transmission paths upon detecting a malfunction has occurred in the oil pump to prevent seizing of lubricated parts and damage to gear-shifting mechanism if a malfunction occurs in the oil pump.

Abstract: A mode transition control device a hybrid vehicle has a transmission control unit that prevents a second power generation system from overheating while traveling in a series HEV mode. When a battery is at a power generation request threshold value or lower, the vehicle travels in a “series HEV mode,” in which the first electric motor is utilized as a drive source and receives electrical power from the second motor/generator and the battery. The transmission control unit controls the traveling mode to transition from the “series HEV mode” to a “parallel HEV mode” when the vehicle speed has reached a switchover vehicle speed. When a temperature rise of the second power generation system is predicted while traveling in the “series HEV mode,” the transmission control unit changes the switchover vehicle speed to a slower switchover vehicle speed that was used prior to a determination of the temperature rise.

Abstract: A construction machine work management system including a construction machine, an aircraft equipped with a camera, and a management device is provided. The construction machine work management system includes a processor configured to execute a program stored in a memory to implement processes of specifying a progress region within a work site on which work progress has been made by the construction machine, and setting up a flight path of the aircraft so that the camera of the aircraft can capture an image of the progress region.

Abstract: A power generation control device is provided for a hybrid vehicle that prevents discomfort to an occupant in a traveling scenario in which stops and starts are repeated. The power generation control device includes a power generation controller that selectively carries out series power generation and idle power generation. In series power generation, a first motor/generator is used as the drive source and electric power is generated in a second motor/generator by an internal combustion engine. In idle power generation, electric power is generated in the second motor/generator by the internal combustion engine while the vehicle is stopped. The power generation controller sets a series power generation start threshold of the battery at which series power generation is started, and an idle power generation start threshold of the battery at which idle power generation is started. The series and idle power generation start thresholds are the same value.

Abstract: A starting control device is provided for an electrically driven vehicle having an electric motor and an internal combustion engine as drive sources and a transmission shifts and transmits an output of the electric motor to a drive wheel. The starting control device is configured to suppress an abrupt increase in the rotation of the electric motor at the time of an EV start of the vehicle from a released state of a starting dog clutch. In the electrically driven vehicle, an EV start is carried out by transmitting the output of the first motor/generator (MG1) to the drive wheel via a starting dog clutch that is meshingly engaged. The output of the first motor/generator is limited until the starting dog clutch comes into a meshed state in which the transmission transmits drive power at the time of start from a released state of the starting dog clutch.

Abstract: A hybrid vehicle start control device is provided for a hybrid vehicle that ensures an EV reverse starting intended by a driver, even when an engagement command is issued to an engagement clutch that selects an ICE gear shift stage, when carrying out EV reverse starting. In this hybrid vehicle, a multistage gear transmission includes an EV shift actuator that selects an EV gear shift stage, and ICE shift actuators that select an ICE gear shift stage. A starting controller operates the EV electric actuator to select EV 1st of the multistage gear transmission at a time of starting, and that carries out an EV starting using the first motor/generator. At a time of an EV reverse starting, the starting controller carries out a control to the operating positions of the ICE shift actuators that prevent the selection of the ICE gear shift stage by the ICE shift actuators.

Abstract: A hybrid vehicle has a first motor/generator mechanically coupled to a drive wheel, a second motor/generator mechanically coupled to an internal combustion engine and a high-power battery that is electrically coupled to the motor/generators. The second motor/generator has a smaller electrical power generation capability than the first motor/generator. While starting the vehicle at a time of insufficient battery capacity required for the EV start, the power generation controller disconnects the first electric motor from the drive wheel, connects the first electric motor to the internal combustion engine, and carries out MG1 idle power generation in which the first electric motor generates power by receiving torque from the internal combustion engine. When the vehicle is stopped at a time of sufficient battery capacity, the power generation controller does not carry out the MG1 idle power generation and keeps the first electric motor mechanically coupled to the drive wheel.

Abstract: A shovel communications system includes a multicopter, an operation apparatus, and a shovel. The multicopter is configured to fly in response to an operation command. The operation apparatus is configured to transmit a radio signal corresponding to the operation command when the operation command is input to the multicopter, and to output information when receiving the information from the multicopter. The shovel includes a relay configured to relay a radio signal communicated between the operation apparatus and the multicopter.

Abstract: A mode transition control device a hybrid vehicle has a transmission control unit that prevents a second power generation system from overheating while traveling in a series HEV mode. When a battery is at a power generation request threshold value or lower, the vehicle travels in a “series HEV mode,” in which the first electric motor is utilized as a drive source and receives electrical power from the second motor/generator and the battery. The transmission control unit controls the traveling mode to transition from the “series HEV mode” to a “parallel HEV mode” when the vehicle speed has reached a switchover vehicle speed. When a temperature rise of the second power generation system is predicted while traveling in the “series HEV mode,” the transmission control unit changes the switchover vehicle speed to a slower switchover vehicle speed that was used prior to a determination of the temperature rise.

Abstract: A transmission control device is provided for a hybrid vehicle that ensures gear shift responsiveness corresponding to a driver's request while achieving excellent gear shifting quality when shifting gears under normal conditions. The transmission control device includes a transmission controller that carries out a shift control for switching between gear shift patterns that are established by the multistage gear transmission by a movement of the engagement clutches based on a gear shift request. The transmission controller selects from among a plurality of gear shift patterns that can be established gear shift patterns in which one engagement clutch is present in a power transmission path leading from the power sources to a drive wheel, and designates the selected gear shift patterns as a normal-use gear shift pattern group, which is used for shift control under normal conditions.

Abstract: A transmission control device is provided for a hybrid vehicle that ensures gear shift responsiveness corresponding to a driver's request while achieving excellent gear shifting quality when shifting gears under normal conditions. The transmission control device includes a transmission controller that carries out a shift control for switching between gear shift patterns that are established by the multistage gear transmission by a movement of the engagement clutches based on a gear shift request. The transmission controller selects from among a plurality of gear shift patterns that can be established gear shift patterns in which one engagement clutch is present in a power transmission path leading from the power sources to a drive wheel, and designates the selected gear shift patterns as a normal-use gear shift pattern group, which is used for shift control under normal conditions.

Abstract: A vehicle transmission control device is provided in a vehicle having a gear type transmission capable of selecting a plurality of gear shift patterns, and an electric oil pump for supplying lubricating oil to a gear-shifting mechanism. The vehicle transmission control device includes a transmission controller that selects a path having a small load on the lubricated parts from among the plurality of power transmission paths upon detecting a malfunction has occurred in the oil pump to prevent seizing of lubricated parts and damage to gear-shifting mechanism if a malfunction occurs in the oil pump.

Abstract: A power generation control device is provided for a hybrid vehicle that prevents unintended engagement of a released engagement clutch during idle power generation. An internal combustion engine is operated during idle power generation so that the input-output differential rotation speed of engagement clutches for selectively connecting an electric motor and/or the internal combustion engine to the drive wheel becomes a value greater than or equal to a rotation difference threshold value at which the engagement clutches are not engaged.