Patent
Power system for a hybrid fuel cell vehicle that employs a floating base load strategy
TLDR
In this article, a power request signal is applied to an average power calculation processor that calculates the average power requested over a predetermined previous period of time, and the output value is added to a filtered value to generate a signal for the change in the output power of the fuel cell stack based on the power request.Abstract:
A fuel cell system employing a floating base load hybrid strategy for reducing fast voltage transients of a FCPM. A power request signal is applied to an average power calculation processor that calculates the average power requested over a predetermined previous period of time. A weighting function processor provides a weighting function based on the state of charge of an EESS. The power available from the FCPM and the EESS is applied to a power comparison processor. The available power is compared to the power request to provide a difference value between what is currently being provided and what is desired. The difference value is compared to power limit values of the EESS. The output value of this comparison is added to a filtered value to generate a signal for the change in the output power of the fuel cell stack based on the power request.read more
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Patent
Thermostat user interface
TL;DR: In this paper, a ring-shaped user interface component is used to track a rotational input motion of a user, and a processing system is configured to identify a setpoint temperature value based on the tracked input motion, and an electronic display coupled to the processing system.
Patent
Occupancy pattern detection, estimation and prediction
Anthony Michael Fadell,Matthew Lee Rogers,Kipp Avery Rogers,Abraham K. Ishihara,Shahar Ben-Menahem,Rangoli Sharan +5 more
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Patent
Automated presence detection and presence-related control within an intelligent controller
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Patent
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Michael James Matas,David Sloo,Michael Plitkins,Anthony Michael Fadell,Matthew Lee Rogers,John B. Filson,Brian Huppi,Fred Bould +7 more
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Patent
System and method for high-sensitivity sensor
TL;DR: In this paper, a sensor unit that includes at least one sensor configured to measure an ambient condition is described, and the controller can be configured to receive instructions, to report a notice level when the controller determines that data measured by the at least 1 sensor fails a report threshold test corresponding to a reported threshold value, and to adjust the threshold based on the calibration measurements.
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Patent
Hybrid fuel battery system and the operation method thereof
TL;DR: In this article, a hybrid fuel cell system including a fuel cell for generating electric power by reacting fuel gas and oxidant gas, current restricting structure for restricting an output current of the fuel cell, a storage cell connected parallel to a series circuit comprising the fuel cells and the current restricting structures for helping the fuelcell to supply electric power to an external load, external load fluctuation detecting structure for detecting a fluctuation in the current demanded by the external load and current limitation adjusting structure for following the fluctuation, by changing the restriction of the output current, which is made by the
Patent
Technique and apparatus to control the transient response of a fuel cell system
TL;DR: In this article, a technique that is usable with a fuel cell stack includes coupling the stack to a load, monitoring a power that is consumed by the load and determining if the power is increasing or decreasing.
Patent
Fuel cell transient control scheme
TL;DR: In this article, a fuel cell system with an anode chamber and a cathode chamber is presented, where an electronic connection to a controller, and the blower is adapted to vary a flow of oxygen through the cathode inlet according to a control signal received from the controller.