A working vehicle includes an engine, a flywheel, a first clutch on a first path connecting the engine and the flywheel, a second clutch on a second path connecting the engine and the flywheel, a speed increasing mechanism on the first path to speed-increase a rotational power of the engine and transmit the speed-increased rotational power to the flywheel, and a controller configured or programmed to control engaged/disengaged states of the first clutch and the second clutch to switch an operation mode between a plurality of operation modes including a boost mode where a rotational speed of the flywheel is higher than a rotational speed of the engine, the first clutch is disengaged, and the second clutch is engaged, and a holding-out mode where the rotational speed of the flywheel is equal to or lower than the rotational speed of the engine, the first clutch is disengaged, and the second clutch is engaged.

An exemplary energy storage device is an energy storage device capable of storing energy, which includes a flywheel driven by a motor to store and release rotation energy and a hydraulic element disposed between the motor and the flywheel to change the rotation speed of the flywheel.

The present invention relates in general to working machines with working units which are subject to fluctuating loads or have a fluctuating power consumption. The invention relates in particular to a drive train assembly for driving such a working unit, the drive train assembly having a flywheel accumulator for mitigating the load impacts or load fluctuations. According to the invention, a starting aid for easier starting up of the flywheel accumulator into its desired operating speed range is provided, the starting aid having a planetary transmission, which is connected in terms of drive to the flywheel accumulator, and a control actuator for braking and/or accelerating a planetary transmission element in order to adjust the step-up/step-down ratio of the planetary transmission when starting up the flywheel accumulator. Furthermore, for refined smoothing of the power consumption in the started-up working mode, a control device is provided which accelerates and can brake the flywheel accumulator cyclically by adjusting the planetary transmission in accordance with the operating fluctuations of the working unit.

A working vehicle includes an engine, a first flywheel to rotate upon receipt of rotational power of the engine, a transmission to selectively receive rotational power of the engine or rotational power of the engine and the first flywheel, speed-change the received rotational power, and output the speed-changed rotational power, a first power transmission path to transmit the rotational power of the engine to the first flywheel, and a second power transmission path to transmit the rotational power of the first flywheel to the transmission. The first and second power transmission paths are independent of each other. The first power transmission path includes a first clutch to selectively allow or interrupt transmission of rotational power from the engine to the first flywheel. The second power transmission path includes a second clutch to selectively allow or interrupt transmission of rotational power from the first flywheel to the transmission.

The embodiments disclose a database and file management system for real estate transactions including a real estate database comprising real estate information stored within files therein relating to a plurality real estate parcels, a server coupled to the plurality of real estate databases configured to receive the real estate information, a mobile automobile having an integrated navigation system coupled to the server, a graphical user interface having geographical mapping data displayed on the graphical user interface, wherein the graphical user interface is configured to allow a user to search and collect the real estate database with voice commands for real estate parcels of interest to the user that are in close proximity to a real-time location of the mobile automobile, and wherein the navigation system is further configured to compare and analyze the collected real estate parcels and display recommended real estate parcels for the user to select.