Patent classifications
B60L15/38
Electrically Driven Construction Machine
An electrically driven construction machine is provided in which, in a case where a plurality of electrically driven construction machines operate simultaneously, it is possible to avoid exceeding the allowable electric power that can be output by the electric power receiving facility of a commercial electric power supply as an external electric power supply while distributing supplied electric power without a work imbalance between different machine bodies according to the respective demanded powers of the plurality of electrically driven construction machines thereby make it possible to perform work efficiently within an allowable electric power of the electric power receiving facility. To this end, a controller 53 computes an own demanded power Pd1 for driving the plurality of hydraulic actuators 13A, 19 on the basis of operation signals of the operation devices 35, 37, computes an allowable power as a power limit value usable by the electric motor 31 on the basis of the own demanded power, the demanded powers of the other electrically driven construction machines received through the communication device 46, and an allowable electric power of the electric power receiving facility 80 of the commercial electric power supply, and controls the electric motor 31 such that a power consumption of the electric motor 31 does not exceed the allowable power.
Hybrid vehicle
The hybrid vehicle performs battery-less drive control to control an engine such that the engine is autonomously operated at an autonomous operation rotation speed, to control a first motor such that a torque based on a driving force required for a run of the hybrid vehicle is output from the first motor, and to control a second motor such that an electric power by subtracting an auxiliary machinery power from an electric power charged or discharged by the first motor is charged or discharged by the second motor. During the battery-less drive control, when a rotation speed of the engine becomes lower than a first predetermined rotation speed that is lower than the autonomous operation rotation speed, the hybrid vehicle performs torque adjustment control to decrease an absolute value of the torque output from the first motor.
Hybrid vehicle
The hybrid vehicle performs battery-less drive control to control an engine such that the engine is autonomously operated at an autonomous operation rotation speed, to control a first motor such that a torque based on a driving force required for a run of the hybrid vehicle is output from the first motor, and to control a second motor such that an electric power by subtracting an auxiliary machinery power from an electric power charged or discharged by the first motor is charged or discharged by the second motor. During the battery-less drive control, when a rotation speed of the engine becomes lower than a first predetermined rotation speed that is lower than the autonomous operation rotation speed, the hybrid vehicle performs torque adjustment control to decrease an absolute value of the torque output from the first motor.
Apparatus and method for the autonomous transportation of goods and/or people
Method and system for autonomously transporting people and/or goods. The method includes requesting conveyance of a payload from a designated area to a destination, autonomously moving at least one module to the designated area, loading the at least one module with a payload within the designated area, and, via the at least one module, autonomously transporting the payload to the destination.
Apparatus and method for the autonomous transportation of goods and/or people
Method and system for autonomously transporting people and/or goods. The method includes requesting conveyance of a payload from a designated area to a destination, autonomously moving at least one module to the designated area, loading the at least one module with a payload within the designated area, and, via the at least one module, autonomously transporting the payload to the destination.
SYSTEM AND METHOD FOR CONTROLLING VEHICLE INCLUDING SOLAR CELL
A system for controlling a vehicle including a solar cell includes: a high-voltage battery; a low voltage DC-DC converter (LDC) down-converting a voltage of the high-voltage battery; an auxiliary battery and an electrical load receiving the down-converted voltage from the LDC; a solar cell; a first solar cell converter converting output power of the solar cell into a voltage corresponding to a voltage of the auxiliary battery; a second solar cell converter converting the output power of the solar cell into a voltage corresponding to a voltage of the high-voltage battery; and a controller controlling operations of the LDC, the first solar cell converter, and the second solar cell converter based on a result of comparison between the output power of the solar cell and power consumption of the electrical load and based on a state of charge (SOC) of the auxiliary battery.
SYSTEM AND METHOD FOR CONTROLLING VEHICLE INCLUDING SOLAR CELL
A system for controlling a vehicle including a solar cell includes: a high-voltage battery; a low voltage DC-DC converter (LDC) down-converting a voltage of the high-voltage battery; an auxiliary battery and an electrical load receiving the down-converted voltage from the LDC; a solar cell; a first solar cell converter converting output power of the solar cell into a voltage corresponding to a voltage of the auxiliary battery; a second solar cell converter converting the output power of the solar cell into a voltage corresponding to a voltage of the high-voltage battery; and a controller controlling operations of the LDC, the first solar cell converter, and the second solar cell converter based on a result of comparison between the output power of the solar cell and power consumption of the electrical load and based on a state of charge (SOC) of the auxiliary battery.
Electric Drive System and Energy Management Method
An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.
Electric Drive System and Energy Management Method
An electric drive system includes an energy storage system (ESS), a power conversion system, and an alternating current (AC) traction system. The ESS provides or receives electric power. The ESS includes a first energy storage unit and a second energy storage unit. The power conversion system is electrically coupled to the ESS for converting an input power to an output power. The AC traction system is electrically coupled to the power conversion system for converting the output power of the power conversion system to mechanical torques. The AC traction system includes a first AC drive device and a second AC drive device. An energy management system (EMS) is in electrical communication with the ESS, the AC traction system, and the power conversion system for providing control signals.
CONTROLLED ARCHITECTURE FOR TRANSPORT SYSTEMS
Control architecture for use with transport systems, such as linear drive systems, rotary drive systems, or a combination thereof, comprising a computer system having a controller for operating control system software for receiving input commands and protocols for creating a motion profile for each transport element, and a gateway for receiving the motion profile from the control system software and for operating gateway drive software that functions to select the appropriate drives to move each transport element along one or more tracks in accordance with their motion profiles.