Abstract: Embodiments of the disclosure describe a method for controlling setback of a heating, ventilation, and air conditioning (HVAC) system comprising a first HVAC unit and a second HVAC unit. The method is performed by a setback control system. The method comprises monitoring an interior temperature and an exterior temperature of a target area associated with the HVAC system. The method comprises determining one or more operating parameters associated with the first HVAC unit of the HVAC system and determining a recovery time based on the operating parameters. The recovery time is a time required to recover interior temperature value from a setback temperature setpoint value to a normal temperature setpoint value by the first HVAC unit. The method comprises triggering a setback recovery based on the determined recovery time and a remaining time in a setback period associated with the setback of the HVAC system.

Abstract: A system for controlling operation of a heat pump configured with an electric heater. The system comprises an occupancy sensor positioned in an area of interest (AOI) and is operable to detect presence/absence of occupants within the AOI. The system supplies air within the AOI while flowing the air through the heat pump and the electric heater. The system comprises a controller that is configured to receive data pertaining to a first predefined temperature for the air to be supplied to the AOI, monitor real-time temperature of the air being supplied to the AOI, detect, using the occupancy sensor, presence of the occupants within the AOI, and operate, upon detecting the presence of the one or more occupants within the AOI, the heat pump and/or the electric heater to adjust the temperature of the air being supplied to the AOI to the first predefined temperature.

Abstract: A method of operating a heat pump system comprising: operating the heat pump system in a demand operation heating mode, wherein the demand operation heating mode comprises controlling an opening amount of an expansion valve based on a superheat difference between a compressor inlet superheat value and a target compressor inlet superheat value, and controlling a flowrate of the refrigerant through a compressor based on a thermal demand difference between a thermal output of the indoor heat exchanger and a customer thermal demand; monitoring with the one or more controllers a parameter of the refrigerant cycle indicative of a charge imbalance condition; and transitioning operation with the one or more controllers to a charge compensation mode when the parameter satisfies a first threshold condition, wherein the charge compensation mode comprises performing with the one or more controllers a charge imbalance mitigation strategy.

Abstract: A method for determining when to initiate a defrost mode of a heat pump includes monitoring a heating capacity of a heat exchanger of the heat pump during operation of the heat pump in a heating mode, initiating the defrost mode when the heating capacity of the heat exchanger is less than or equal to a reduced defrost threshold when a capacity demand of the heat exchanger is less than a maximum capacity demand, and initiating the defrost mode when the heating capacity of the heat exchanger is less than or equal to a maximum defrost threshold when the capacity demand of the heat exchanger is equal to the maximum capacity demand.

Abstract: A method of operating a heat pump system comprising: operating the heat pump system in a demand operation heating mode, wherein the demand operation heating mode comprises controlling an opening amount of an expansion valve based on a superheat difference between a compressor inlet superheat value and a target compressor inlet superheat value, and controlling a flowrate of the refrigerant through a compressor based on a thermal demand difference between a thermal output of the indoor heat exchanger and a customer thermal demand; monitoring with the one or more controllers a parameter of the refrigerant cycle indicative of a charge imbalance condition; and transitioning operation with the one or more controllers to a charge compensation mode when the parameter satisfies a first threshold condition, wherein the charge compensation mode comprises performing with the one or more controllers a charge imbalance mitigation strategy.

Abstract: A nursing bottle comprising a fluid container having a cushiony exterior sidewall and an object disposed between the fluid container and the exterior sidewall to enable viewing of the object through the exterior sidewall.

Abstract: A nursing bottle comprising a fluid container having a cushiony exterior sidewall and an object disposed between the fluid container and the exterior sidewall to enable viewing of the object through the exterior sidewall.

Abstract: A supplemental restraint deployment method utilizes measured vehicle speed and acceleration and the output of a closing velocity sensor that detects the presence and closing rate of an approaching object prior to contact with the vehicle. The closing velocity and vehicle speed are utilized for classification of an impending crash event, where the deployment options vary depending on the crash classification. In the ensuing crash event, a classification-dependent algorithm is executed to determine if, when and what level of restraint deployment is warranted based on measures of actual crash severity. Additionally, the algorithm is reset when the calculated change in vehicle velocity reaches the initial closing velocity.

Abstract: Impending rollover events are detected based on differential z-axis (i.e., vertical) acceleration. Vertical or z-axis acceleration measured at laterally opposite sides of the vehicle are filtered and differenced, and the differential acceleration is processed and compared to a calibrated threshold to detect impending rollover. Separate algorithms are employed to detect different categories of rollover events, and a sum of the z-axis acceleration measurements is used as a safing signal.

Abstract: The present invention provides a system of and a method for multiple transmitters to communicate data over a single uni-directional communication bus. In one form of the present invention, a data communication system using time-domain multiplexing includes a uni-directional current-modulated communication bus, a plurality of sensors coupled to the communication bus, at least one of the sensors capable of detecting the data transmission of a sensor outside of the current loop of the first sensor, the sensors also capable of transmitting data on the communication bus using current loop modulation. In another form of the present invention, a method of transmitting data on a uni-directional communication bus is provided.