Abstract: A wheel loader, which reduces fuel consumption and eliminates lack of output power of an engine, is provided. For this purpose, the wheel loader is a wheel loader performing operations by driving a hydraulic pump (8) for driving a working machine and driving wheels (6) of a vehicle (101) by an engine (1), and includes a first electric motor (11) capable of transmitting torque to the driving wheels, an electricity accumulation device (13) for transferring electric energy to and from the first electric motor, and a controller (10, 20) for controlling a generating operation of the first electric motor that receives torque transmission from the driving wheels and generates electric power at the time of a decelerating operation of the vehicle, and storing generated electric energy into the electricity accumulation device.

Abstract: A wheel loader, which reduces fuel consumption and eliminates lack of output power of an engine, is provided. For this purpose, the wheel loader is a wheel loader performing operations by driving an hydraulic pump (8) for driving a working machine and driving wheels (6) of a vehicle (101) by an engine (1), and includes a first electric motor (11) capable of transmitting torque to the driving wheels, electricity accumulation means (13) for transferring electric energy to and from the first electric motor, and a controller (10, 20) for controlling a generating operation of the first electric motor that receives torque transmission from the driving wheels and generates electric power at the time of a decelerating operation of the vehicle, and storing generated electric energy into the electricity accumulation means.

Abstract: A supervisory and control system for a time division switching system supervising and controlling signals transferring to and from all or some of line interface equipment such as a digital trunk, analog trunk equipment, the intra-office line concentrators or remote line concentrator through a signal path. In the signal control, the signal is classified into two kinds of signals: one for cyclically controlling a state and the other for randomly controlling the same. Those signals are multiplexed in a single time slot to control the various line interfaces. Signal time slots having different multiframes and signal time slots with a plurality of periods are supervised depending on a signal path class thereby to reduce the number of laying cables among interframes.