Abstract: A vehicle includes first and second fuel-cell stacks, a first coolant circuit having conduit arranged to circulate coolant through the first fuel-cell stack, a second coolant circuit having conduit arranged to circulate coolant through the second fuel-cell stack, a heater in fluid communication with at least the first coolant circuit, and an isolation valve assembly configured to proportion a flow of coolant between the first and second coolant circuits. The isolation valve assembly includes valving. The valving has an isolation position in which the first and second circuits are isolated. The valving also has at least one mixing position in which the first and second circuits are in fluid communication.

Abstract: A differential assembly include a housing defining an oil sump, a differential disposed in the housing, and a thermal-management system. The system includes an oil pump in fluid communication with the sump, a spool valve having an inlet connected to the pump, a first outlet, a second outlet, and a spool slidable to a first position in which the inlet is in fluid communication with the first outlet and to a second position in which the inlet is in fluid communication with the second outlet. The spool valve further has a chamber containing wax configured to move the spool according to a temperature of the wax such that the spool is in the first position when the temperature of the wax is within a first temperature range and is in the second position when the temperature of the wax is within a second temperature range.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine temperature. In one example, cooling capacity is transferred from a low temperature loop to a heat exchanger, and cooling capacity stored in the heat exchanger is transferred to a high temperature loop (e.g., an engine coolant loop). The flow of coolant from the dual loop coolant system to the heat exchanger may be regulated responsive to a temperature of the coolant in each of the low temperature loop and the high temperature loop.

Abstract: A differential assembly includes a housing defining an oil sump, a differential disposed in the housing, and a thermal-management system. The thermal-management system includes an oil pump in fluid communication with the sump, an oil-to-air heat exchanger external to the housing, and a passive valve assembly. The passive valve assembly has an inlet connected to the pump, a first outlet connected to the heat exchanger, and a second outlet connected to a conduit disposed within the housing. The valve assembly further has a valve movable to a first position in which the inlet and the first outlet are in fluid communication and to a second position in which the inlet and the second outlet are in fluid communication. The valve is configured to be in the first position in response to the oil exceeding a first threshold temperature.

Abstract: A differential assembly includes a housing defining an oil sump, a differential disposed in the housing, and a thermal-management system. The thermal-management system includes an oil pump in fluid communication with the sump, an oil-to-air heat exchanger external to the housing, and a passive valve assembly. The passive valve assembly has an inlet connected to the pump, a first outlet connected to the heat exchanger, and a second outlet connected to a conduit disposed within the housing. The valve assembly further has a valve movable to a first position in which the inlet and the first outlet are in fluid communication and to a second position in which the inlet and the second outlet are in fluid communication. The valve is configured to be in the first position in response to the oil exceeding a first threshold temperature.

Abstract: A vehicle includes first and second fuel-cell stacks, a first coolant circuit having conduit arranged to circulate coolant through the first fuel-cell stack, a second coolant circuit having conduit arranged to circulate coolant through the second fuel-cell stack, a heater in fluid communication with at least the first coolant circuit, and an isolation valve assembly configured to proportion a flow of coolant between the first and second coolant circuits. The isolation valve assembly includes valving. The valving has an isolation position in which the first and second circuits are isolated. The valving also has at least one mixing position in which the first and second circuits are in fluid communication.

Abstract: Methods and systems are provided for variable thermal capacity charge air cooler (VTC-CAC). In one example, the VTC-CAC includes a plurality of cooling channels and an integrated bypass that diverts air around the cooling channels. Division of boosted intake air between the cooling channels and the bypass is regulated by a positioning of dual-gate mechanism that is adjusted in response to manifold charge temperature.

Abstract: A method of accessing image data comprises receiving a query to access data from a user. The query comprises data parameters comprising one or more geographic areas of the images of the data, and/or one or more time frames for the images of the data. The data query is formatted according a requirement of each of a plurality of data providers. The respective formatted query is sent to each of the data providers. A response is received from each data provider. The response indicates whether the respective data provider has data that meets the respective formatted query. For those data providers that indicate that they have data that meets the respective formatted query, the data that meets the respective formatted query is received using a data transfer protocol suitable for the respective data provider. The retrieved data from the plurality of data providers is collated and sent to the user.

Abstract: A vehicle includes a battery, a first cooling loop, a second cooling loop, and a controller. The first and second cooling loops are configured to circulate coolant to cool the battery. The controller is programmed to, responsive to ambient air temperature being less than a threshold, circulate coolant through the first cooling loop alone. The controller is further programmed to, responsive to ambient air temperature exceeding the threshold, circulate coolant through the second cooling loop and isolate the first cooling loop from the battery.

Abstract: Methods and systems are provided for variable thermal capacity charge air cooler (VTC-CAC). In one example, the VTC-CAC includes a plurality of cooling channels and an integrated bypass that diverts air around the cooling channels. Division of boosted intake air between the cooling channels and the bypass is regulated by a positioning of dual-gate mechanism that is adjusted in response to manifold charge temperature.

Abstract: A vehicle has an internal combustion engine, an accessory, and a system having first and second belts extending between a drive assembly rotatably connected to a crankshaft of the engine and a driven assembly rotatably connected to a driveshaft of the accessory. One of the drive and driven assemblies comprises a mechanism with a shaft supporting first and second pulleys, with the first and second pulleys associated with the first and second belts, respectively. The first pulley is selectively engaged with the shaft in response to an engine speed being below a threshold value, and the second pulley is selectively engaged with the shaft in response to the engine speed being above the threshold value.

Abstract: Methods and systems are provided for variable thermal capacity charge air cooler (VTC-CAC). In one example, the VTC-CAC includes a plurality of cooling channels and an integrated bypass that diverts air around the cooling channels. Division of boosted intake air between the cooling channels and the bypass is regulated by a positioning of dual-gate mechanism that is adjusted in response to manifold charge temperature.

Abstract: Methods and systems are provided for variable thermal capacity charge air cooler (VTC-CAC). In one example, the VTC-CAC includes a plurality of cooling channels and an integrated bypass that diverts air around the cooling channels. Division of boosted intake air between the cooling channels and the bypass is regulated by a positioning of dual-gate mechanism that is adjusted in response to manifold charge temperature.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine temperature. In one example, cooling capacity is transferred from a low temperature loop to a heat exchanger, and cooling capacity stored in the heat exchanger is transferred to a high temperature loop (e.g., an engine coolant loop). The flow of coolant from the dual loop coolant system to the heat exchanger may be regulated responsive to a temperature of the coolant in each of the low temperature loop and the high temperature loop.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine temperature. In one example, cooling capacity is transferred from a low temperature loop to a heat exchanger, and cooling capacity stored in the heat exchanger is transferred to a high temperature loop (e.g., an engine coolant loop). The flow of coolant from the dual loop coolant system to the heat exchanger may be regulated responsive to a temperature of the coolant in each of the low temperature loop and the high temperature loop.

Abstract: An engine cooling system is provided with an internal combustion engine defining a head cooling jacket and a block cooling jacket in a split flow configuration. A first thermostat is positioned at an outlet of the block cooling jacket and configured to control coolant flow therethrough. A second thermostat is positioned to receive coolant flow from the first thermostat and the head cooling jacket. The first and second thermostats are in a thermostat assembly within a housing. In response to coolant temperature being below a first threshold, a first and a second thermostat downstream of the engine in a thermostat assembly are closed such that coolant flows through a head jacket and the thermostat assembly to a pump, and such that coolant in the head jacket entrains a trickle flow of coolant from a block jacket through an interbore cooling passage, thereby cooling an interbore region.

Abstract: Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine transmission oil temperature. In one example, a high temperature coolant loop comprises a first heat exchanger and a control valve positioned upstream of the first heat exchanger whose coolant flow is separate from a second, low temperature coolant loop containing a second heat exchanger. An engine fluid circuit fluidically coupling the first heat exchanger, second heat exchanger, and an engine system component via a bypass valve positioned between the first heat exchanger and the second heat exchanger.

Abstract: Methods and systems are provided for a dual loop coolant system used to control an engine temperature. In one example, cooling capacity is transferred from a low temperature loop to a heat exchanger, and cooling capacity stored in the heat exchanger is transferred to a high temperature loop (e.g., an engine coolant loop). The flow of coolant from the dual loop coolant system to the heat exchanger may be regulated responsive to a temperature of the coolant in each of the low temperature loop and the high temperature loop.

Abstract: Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.