摘要:
A method and system for heating a vehicle battery, such as the type used for vehicle propulsion in a hybrid electric vehicle (HEV). Depending on the battery chemistry involved, such batteries may not perform well in extremely cold environments. For instance, a lithium-ion battery can exhibit a high internal resistance when the battery is extremely cold, which in turn can negatively affect the available power or other capabilities of the battery. According to an exemplary embodiment, the method and system take advantage of the high internal resistance in a cold vehicle battery by purposely cycling electrical current in and/or out of the battery so that heat is created. This heat warms up the vehicle battery and thereby improves its overall performance and capabilities.
摘要:
A method for modeling changes in the state of charge vs. open circuit voltage (SOC-OCV) curve for a lithium-ion battery cell as it ages. During battery pack charging, voltage and current data are gathered for a battery cell. A set of state equations are used to determine the stoichiometry and state of charge of the cathode half-cell based on the charging current profile over time. The voltage and current data, along with the stoichiometry and state of charge of the cathode half-cell, are then used to estimate maximum and minimum solid concentration values at the anode, using an error function parameter regression/optimization. With stoichiometric conditions at both the cathode and anode calculated, the cell's capacity and a new SOC-OCV curve can be determined.
摘要:
A traveling virtual pet game simulates a pet traveling between various geographic locations. As the pet travels, users interact with the virtual pet to aid the pet in acquiring traits associated with the geographic regions in which it travels and to observe traits that the pet has previously acquired.
摘要:
An apparatus is provided for a heating appliance that includes a manually-opened pilot valve that is held in an open position when a sufficient voltage is applied to a valve operator, and a thermocouple that converts heat from a pilot flame into a voltage that is applied to the valve operator. The apparatus includes a voltage measuring circuit that provides an output indicative of a magnitude of the voltage generated by the thermocouple, and a light emitting device. A controller is coupled to the voltage measuring circuit and the light emitting device. The controller is configured to establish, based on the output indicative of the magnitude of the voltage generated by the thermocouple, a switch sequence for switching the light emitting device on and off in a flashing manner, to provide an indication of when the magnitude of the voltage is sufficient to cause the valve operator to hold the gas valve open.
摘要:
A method and system for manipulating, adjusting or otherwise controlling a state-of-charge (SOC) operating range for a high voltage vehicle battery, such as the type used for hybrid or electric vehicle propulsion. By providing a dynamic SOC operating range that changes in response to changing battery conditions, the battery performance may be improved so that the battery life is extended. Depending on the particular embodiment, the dynamic SOC operating range may have different combinations of hard and/or soft boundaries or limits.
摘要:
A piping system comprises a resistive heating circuit, a target heating surface, and a thermally conductive substrate adjoin (or abutting) both the heating circuit and the heating surface. The thermally conductive substrate can be composed of aluminum or some other material for heat spreading. A material for heat spreading has a thermal conductivity sufficient to evenly heat a section of the target surface within tolerance requirements of a sensitive application. The even heating can eliminate hot spots and cold spots of a temperature gradient along an axis of the piping system.
摘要:
A timed reaction game apparatus is provided. The apparatus may include an electronic console and a plurality of illumination areas disposed on the electronic console. The plurality of illumination areas may include an array having a radial symmetry and may be configured to display a visual cue sequence. The apparatus may further include an array of vibration sensors attached to the electronic console in substantial radial alignment with the illumination areas, wherein each of the vibration sensors is associated with a target zone and is configured to locate a tapping response proximate to a respective vibration sensor, and a processor configured to generate a visual cue sequence, to record a tapping response sequence detected by the vibration sensors, and to generate a score based on temporal correlation and spatial correlation between a visual cue sequence and a tapping response sequence.
摘要:
A waste monitoring system includes a portable device to monitor product wastage. The portable device includes a processor and a memory in communication with the processor. The memory stores processor-executable instructions that, when executed by the processor, cause the processor to control operation of the portable device to generate a graphical user interface (GUI) to collect quantity data relating to respective quantities of a plurality of types of wasted products, and to calculate cost data as a function of the quantity data. A display device displays the GUI. A server is in communication with the portable device and is configured to receive the quantity data and the cost data from the portable device. A computing device is in communication with server and is configured to receive the quantity data and the cost data from the server and to display at least one of the quantity data and the cost data.