摘要:
A method for charging an electric storage battery in a plug-in electric vehicle through a power supply circuit includes coupling a charger to the circuit, providing the charger with a signal representing a current capacity of the circuit, using the signal to determine a maximum charge rate corresponds to the current capacity of the circuit represented by the signal, and charging the battery through the circuit and charger at the maximum charge rate.
摘要:
An energy conversion system transfers energy between an energy source, or storage unit, and an electric device via a first port and a second port and at least one of receives and provides energy via a third port.
摘要:
An electric drive system having a power source which provides power to an electric motor through an electric motor control. Discharging of stored capacitor energy of a capacitor coupled between the power source and the electric motor controller is provided by controlling energy transfer from the capacitor to the electric motor.
摘要:
A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside said coil and positioned at an angle relative to a direction of movement of an armature.
摘要:
An electronically controlled valve actuator having an armature, a valve, and a coupler for coupling the actuator to the valve with motion of the armature in a first direction moving the second piston in a second direction. The actuator includes an electromagnet, an armature disposed adjacent to the electromagnetic, and a fluid-containing chamber. The fluid-containing chamber includes a first piston providing a first wall portion of the chamber and a second piston providing a second wall portion of the chamber. The first piston is coupled to the armature and the second piston is coupled to a valve. Activation of the electromagnet moves the first piston in a first direction, such motion of the first piston in the first direction driving fluid in the chamber to move the second piston in an opposite direction.
摘要:
A valve actuator for an internal combustion engine is described having a core having a wound coil located therein, said core further having at least one permanent magnet located at least partially inside or outside said coil and positioned at an angle relative to a direction of movement of an armature. Further, various recesses, indentations, chamfers, bevels, and/or depressions may be included to affect flux leakage, and/or force generation.
摘要:
An energy conversion system transfers energy between an energy source, or storage unit, and an electric device via a first port and a second port and at least one of receives and provides energy via a third port.
摘要:
A DC-to-DC converter is provided and generally configured for implementation with an electric motor drive system. In at least one embodiment, the DC-to-DC converter includes first and second capacitors, an inductor, and first and second switching devices. The DC-to-DC converter is bi-directional to facilitate voltage transfer therethrough. In at least another embodiment, the electric motor drive system comprises an energy storage device, a drive unit, an electric motor and a bi-directional DC-to-DC converter. The energy storage device includes a positive and a negative terminal. The drive unit includes a first and second terminal. The electric motor is in electrical communication with the drive unit.
摘要:
An inductor (160) includes a core (162) that has a window (164). The core (162) includes a first core member (168) and a second core member (170). A first winding (176) is coupled to the first core member (168) and a second winding (178) is coupled to the second core member (170). A cross-member (172, 174) is coupled at least partially across the window (178) and is conductively enabling flux flow between the first core member (168) and the second core member (170). An electronic circuit (100) includes an input terminal (118), an inductor (102), and an output terminal (E′, F′). The inductor (102) is coupled to the input terminal and has only a single inductive core (162). The inductor (102) is coupled to filter both common-mode noise and differential-mode noise. The load terminal is coupled to and receives filtered common-mode and differential-mode current from the inductor (102).
摘要:
At least three alternative stiff current supply power converter topologies provide fixed current to a respective electric load such as a motor, or a non-inductive electric load using either a current source or a pseudo current source. The stiff current power converter topologies reduce the size of passive components within each of the topologies, thus reducing the overall packaging of each of the components and subsystems formed by each of the components. Each of the topologies have a stiff current source, a driver having power electronics formed therein to drive the associated electric load, wherein the stiff current source and the driver operate to deliver a stiff but controllable current to the electric load.