摘要:
An electrical system for an automotive vehicle has a plurality of electrical generating machines having field windings energized by pulse width modulated drive signals generated by an external electronic voltage regulator. The pulse width modulated drive signals have a duty cycle determined by the electronic voltage regulator. A controller selects one of electrical generating machines to evaluate for failure and evaluates that electrical generating machine for failure by causing the PWM drive signal for the field windings of that electrical generating machine to be disabled. The controller then determines that this electrical generating machine has failed if the duty cycle for the PWM drive signals has then not been increased by the electronic voltage regulator by a pre-determined amount. The electrical generating machines are either generators or alternators. In an aspect, the PWM drive signals for the plurality of electrical generating machines are out of phase with each other.
摘要:
A method for controlling a portable power system, comprising: using a processor, selecting an engine efficiency range for an engine of a generator set of the portable power system, the engine efficiency range corresponding to a power output range of the generator set and to a power demand range of a load coupled to the portable power system; while a power demand of the load is less than a power output of the generator set, storing excess energy from the generator set in a battery bank of the portable power system; while the power demand of the load is greater than the power output of the generator set, providing additional power to the load from the battery bank; when a first predetermined depth of discharge threshold is reached by the battery bank, increasing the power output of the generator set to allow the battery bank to recharge; and, when a predetermined state of charge threshold is reached by the battery bank, ceasing the power output of the generator set and providing power to the load from the battery bank until a second predetermined depth of discharge threshold is reached by the battery bank.
摘要:
A vehicle includes an engine, an electric motor, an electrical storage device and a controller. The electric motor generates electric power by using driving force of the engine. The controller controls supply of electric power, which is at least one of electric power generated by the electric motor or electric power stored in the electrical storage device, to an outside of the vehicle. The controller selects, on the basis of setting made by a user, whether to permit or prohibit generation of electric power by using the driving force of the engine.
摘要:
The present disclosure relates to micro-hybrid battery modules that include at least one battery cell having a titanate-based oxide anode active material with spinel structure and a high voltage spinel (LiMn2-xMxO4) cathode active material. The battery module may be configured to couple to an energy storage unit to enable the module to be used in start-stop applications.
摘要翻译:本公开内容涉及包括具有尖晶石结构的钛酸盐基氧化物负极活性材料和高电压尖晶石(LiMn 2-x M x O 4)阴极活性材料的至少一个电池单元的微混合电池模块。 电池模块可以被配置为耦合到能量存储单元,以使模块能够用于起动停止应用中。
摘要:
The present invention provides a new and useful apparatus for charging battery powered electronic devices using a rolling means. The rolling means transfers mechanical energy from a plurality of wheels to a generator by way of a gear ratio. The generator in turn yields electrical energy that is later transformed via integrated circuitry into viable power for the purposes of charging an optional internal batter or that of an attached device. This apparatus does not limit the user's mobility and can be used in everyday settings. The apparatus can be an integral part of a piece of luggage or added to an existing hand cart. Additionally, the apparatus can have a connection for a DC input to charge the internal battery when the apparatus is not in motion.
摘要:
A target power value determining unit determines target power values Pc1* and Pc2* such that a sum SPc* of target load powers as a sum of target load power Pc1* and target load power Pc2* does not exceed a sum SWin of allowable charging powers and a sum SWout of allowable discharging powers. In accordance with the generated target load power values Pc1* and Pc2*, switching commands PWM1 and PWM2 are generated. Consequently, an inverter executes a power conversion operation such that the powers exchanged between a main line ML and motor generators attain to the target load power values Pc1* and Pc2*, respectively.
摘要:
Two or more alternators—each typically of an economical cost and of any mixture of types and capacities—are turned by a single power source—normally the engine of a large commercial truck or bus burning fuel so as to produce minimum emissions and thus operating at such higher combustion temperature as does raises the ambient temperature of the engine compartment to 125° Celsius. The several alternators are electrically connected in tandem-parallel across a battery/load. A corresponding number of identical electronic voltage regulators, preferably of the type described in U.S. Pat. No. 5,723,972 modified according to the present invention, respectively individually control the alternators. One electronic voltage regulators externally programmed to become a designated “master” produces a “universal” control signal in response to variations in a voltage across the battery/load. This “universal” control signal is used (1) in the “master” electronic voltage regulator itself to provide regulation to an associated alternator, and is wired to all other voltage regulators externally programmed as “followers” to (2) produce in each of these voltage regulators produces a signal for the regulation control of its associated alternator not by reference to the battery/load voltage (as would be normal), but rather by reference to the “universal” control signal.
摘要:
The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time (e.g., revolutions per minute (RPM)) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. In a second mode, if the turbogenerator revolutions per unit time or electrical output level of a turbogenerator output are less than the minimum threshold, the electric drive motor or a generator mechanically powered by the engine provides electrical energy to the direct current bus.
摘要:
An amount of electric power generatable by an exhaust gas-driven rotating electric machine is determined corresponding to an operating point, so that an increment amount of fuel by the exhaust gas-driven electric power generation is smaller than engine-driven alternator power generation. The power generation can be thereby performed by effectively utilizing exhaust energy of the engine.
摘要:
The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via a rectifier where turbogenerator revolutions per unit time (e.g., revolutions per minute (RPM)) or an electrical output level of a turbogenerator output meet or exceed a minimum threshold. In a second mode, if the turbogenerator revolutions per unit time or electrical output level of a turbogenerator output are less than the minimum threshold, the electric drive motor or a generator mechanically powered by the engine provides electrical energy to the direct current bus.