摘要:
A solar-thermal powered recreational vehicle featuring a solar-thermal air conditioning system integrated with a solar clean energy system to provide a recreational vehicle having improved energy efficiency. In an embodiment employing the principles of the present invention, the solar-thermal powered recreational vehicle can comprise a clean energy system for providing electrical power to the recreational vehicle, whereby the clean energy system features one or more solar photovoltaic panels, a batter bank, and a generator operatively coupled to a hybrid inverter. The solar-thermal air conditioning system is powered by the clean energy system, with the solar-thermal air conditioning system featuring a solar-thermal collector panel functioning to superheat compressed refrigerant prior to the compressed refrigerant being transmitted to the condenser. Because the compressor is the most energy-intensive component in the traditional direct expansion AC system, the use of free solar energy by the present invention to reduce the work load on the compressor significantly reduces the overall energy requirements of the recreational vehicle, thereby providing a recreational vehicle capable of operating on solar and battery power alone for significant periods of time.
摘要:
Provided are an electric vehicle and a vehicle power feeding method capable of charging, at an ultra-high speed, an electricity storage device of the electric vehicle that travels on a trackless road. A control device (52) of the electric vehicle (12) executes: a first charging control for controlling a voltage converter (28) to limit the input current from a power feeding portion (152) to an electricity storage device (24) or the variation of the input current per unit time and allowing the voltage converter (28) to charge the electricity storage device (24); and a second charging control for, for example, stopping the transforming operation of the voltage converter (28) and allowing the voltage converter (28) to charge the electricity storage device (24). Both charging controls are executed while moving the contact point between an electrical connection portion (26) and the power feeding portion (152), and the execution time of the second charging control is longer than that of the first charging control.
摘要:
A regeneration control apparatus which controls a regenerative braking force of an electric motor for driving an electric motor vehicle includes: a regeneration operation unit operated by a driver to select magnitude of the regenerative braking force stepwise from selection stages; a default operation unit operated by the driver to change the magnitude of the regenerative braking force to one of the selection stages which has been set as a default stage; a detection unit detecting an operation state on the regeneration operation unit during a learning period; and a default stage changing unit, when one of the selection stages whose selection frequency is highest during the learning period is different from one of the selection stages which has been currently set as the default stage, changing the default stage to another selection stage.
摘要:
Current source converter (CSC) based motor drives and control techniques are presented in which DC link current is regulated to a level set by the output inverter during dynamic braking operation by pulse width modulation of a braking resistance connection signal to maintain control of motor torque and speed while mitigating or preventing line side regenerative currents.
摘要:
A vehicle (1) includes front-wheels (3) each of which is driven by a front-wheel driving motor (15) having a first motor characteristic and a speed reducer (16), and rear wheels (4) each of which is driven by a rear-wheel driving motor (18) having a second motor characteristic. An ECU (7) calculates a total target wheel torque of all the wheels, and calculates target wheel torques for the respective front wheels and the respective rear wheels based on the total target wheel torque, the first motor characteristic, the second motor characteristic, and a characteristic of the speed reducer. The ECU calculates a target motor torque for the front-wheel driving motor based on a speed reduction ratio of the speed reducer and the target wheel torque for each front wheel, and calculates a target motor torque for the rear-wheel driving motor based on the target wheel torque for each rear wheel.
摘要:
An electrical apparatus is provided including an electrical drive system and an electrical machine. The electrical machine includes a rotor, a first separate multi-phase stator winding and a second separate multi-phase stator winding. The drive system includes a first multi phase bridge inverter connected to the first multi-phase stator winding and which is adapted to be connected to a line voltage supply by a connection means when charging a battery. The apparatus further includes a second multi-phase bridge inverter connected to the second multi-phase stator winding and to the battery. A battery can be charged without the need of a specific charger and charging with galvanic isolation is provided.
摘要:
The present invention relates to a power-conversion method (10) for a vehicle comprising: a three-phase electric motor, - two three-phase inverters, each inverter being controlled via modulation of at least six spatial vectors, the output voltage of each inverter being given by a spatial vector referred to as "reference spatial vector". Said method comprises the following steps: - applying (11) an activation sequence to the spatial vectors of one inverter, - applying (12) an activation sequence to the spatial vectors of the other inverter, - subtracting (13) the reference spatial vector of one inverter from the reference spatial vector of the other inverter and - supplying (14) the electric motor with electric power, the voltage inducing the electric power being relative to the vector resulting from the subtraction.
摘要:
An electric vehicle control device according to an embodiment includes a power conversion device that receives power from an overhead line in an electrified section to perform power conversion, and that supplies driving power to a vehicle driving motor; an auxiliary power source device that receives the power from the overhead line in the electrified section to perform power conversion, and that supplies auxiliary machine driving power having predetermined auxiliary machine driving voltage lower than voltage of the driving power, to an auxiliary machine; and an electricity storage device that receives charging power and stores therein. A controller connects the electricity storage device with the charging device, and causes the charging device to charge the electricity storage device, by converting the supplied auxiliary machine driving power to the charging power in the electrified section, and causes the electricity storage device to supply the power stored therein to the power conversion device and the auxiliary power source device, instead of the power from the overhead line in a non-electrified section. Consequently, the device configuration of the hybrid power supply-type train can be simplified and the train can reliably travel non-electrified sections.
摘要:
A solar-thermal powered recreational vehicle featuring a solar-thermal air conditioning system integrated with a solar clean energy system to provide a recreational vehicle having improved energy efficiency. In an embodiment employing the principles of the present invention, the solar-thermal powered recreational vehicle can comprise a clean energy system for providing electrical power to the recreational vehicle, whereby the clean energy system features one or more solar photovoltaic panels, a batter bank, and a generator operatively coupled to a hybrid inverter. The solar-thermal air conditioning system is powered by the clean energy system, with the solar-thermal air conditioning system featuring a solar-thermal collector panel functioning to superheat compressed refrigerant prior to the compressed refrigerant being transmitted to the condenser. Because the compressor is the most energy-intensive component in the traditional direct expansion AC system, the use of free solar energy by the present invention to reduce the work load on the compressor significantly reduces the overall energy requirements of the recreational vehicle, thereby providing a recreational vehicle capable of operating on solar and battery power alone for significant periods of time.
摘要:
To provide a driving device for an in-wheel motor vehicle that can be reduced in size, weight and cost, the driving device for the in-wheel motor vehicle includes a plurality of in-wheel motor assemblies, which are disposed in at least two of a plurality of drive wheels, and a plurality of motor drivers for controlling those in-wheel motor assemblies. Each of the motor drivers includes a smoothing circuit, a control unit, an inverter unit and a cooler for cooling the inverter unit. The plurality of the motor drivers are put together at one location and disposed within the common casing.