A control method of a heat pump system for a vehicle may include a first cooling apparatus having a first radiator, a first water pump, an electrical component, a valve, and a branch line, which are connected by a first coolant line and circulate a first coolant by the first water pump to the electrical component; a second cooling apparatus including a second radiator and a second water pump connected by a second coolant line; and an air conditioning apparatus including a compressor, a heater, an expansion valve, and a heat exchanger which are connected by a refrigerant line circulated with a refrigerant.

This patent application is directed to thermal management systems of vehicles with an electric powertrain. More specifically, the battery system and one or more powertrain components and/or cabin climate control components of a vehicle share the same thermal circuit as the battery module through which heat can be exchanged between the battery module and one or more powertrain or climate control components as needed.

A heat pump system for a vehicle may include first and second cooling apparatuses; a battery module; and a controller electrically connected to the first and second cooling apparatuses, the battery module, and an air conditioner apparatus to selectively control the first and second cooling apparatuses, the battery module, or the air conditioner apparatus according to a vehicle mode, wherein the heat exchanger provided in the air conditioner apparatus is connected to each of the first and second coolant lines to enable the coolants circulating in the first and second cooling apparatuses to pass through the heat exchanger, and a refrigerant passing through the heat exchanger is selectively condensed or evaporated depending on the vehicle mode through mutual heat exchange with the coolant supplied from any one of the first coolant line and the second coolant line, or the coolants supplied through the first and second coolant lines, respectively.

A vehicle cooling/heating system includes a coolant line in which coolant is circulated between a heat source component of a vehicle that provides waste heat and a chiller and a refrigerant line in which refrigerant is circulated through a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant line performs indoor cooling through the evaporator. A controller controls the coolant line such that, during a king mode in which it is necessary to dry the evaporator, the coolant in the coolant line is circulated or not circulated through the heat source component and the chiller; and controls the coolant line such that the refrigerant in the refrigerant line flows in an order of the compressor, the evaporator, and the chiller.

A heat request arbitration device includes: a first thermal circuit; a second thermal circuit; a third thermal circuit having path patterns that are selectable as a path that is heat exchangeable with each of the first thermal circuit and the second thermal circuit; and heat source units configured to absorb heat or radiate heat via a heat medium circulating in at least one of the thermal circuits; a derivation unit configured to derive requests related to heat flow control of heat absorbed or radiated by each of the heat source units; and a selection unit configured to select a path for at least one of the thermal circuits so as to satisfy at least one of the requests related to the heat flow control based on the requests related to the heat flow control derived by the derivation unit.

A vehicle energy management system connectable to a vehicle and configured to control a valve arrangement to deliver a flow of pressurized air to a heat receiving structure when the vehicle is operated in a vehicle braking mode and a temperature level of the heat receiving structure is below a maximum limit of a predetermined temperature range.

A vehicle heat exchange system includes a coolant circulation circuit, a refrigerant circulation circuit, a pump controller, and a detector. In the coolant circulation circuit, a coolant is circulated. In the refrigerant circulation circuit, a refrigerant is circulated. The pump controller controls a flow rate of the coolant. The detector detects a liquid temperature of the coolant before cooling an electric unit. The coolant circulation circuit includes a radiator that dissipates heat of the coolant having cooled the electric unit. The refrigerant circulation circuit includes an exterior heat exchanger in rear of the radiator. The exterior heat exchanger causes the refrigerant to absorb heat from external air. When the detected liquid temperature is equal to or higher than a predetermined temperature, the pump controller maintains or increases the flow rate. When the detected liquid temperature is lower than the predetermined temperature, the pump controller decreases the flow rate.

A thermal system for a vehicle includes a high temperature coolant loop thermally coupled to a heater core, a low temperature coolant loop thermally coupled to at least one of an electric motor and power electronics, and a first four-way valve configured to selectively fluidly couple the high temperature coolant loop and the low temperature coolant loop such that coolant heated by the electric motor and/or the power electronics is directed to the heater core to facilitate heating of an airflow passing thereby.

An electric drivetrain for installation in a vehicle chassis. A generator coupled to an engine generates electric power for charging an array of batteries. The vehicle, including components and subsystems, may be powered electrically from the batteries, allowing the engine and generator to be easily replaced or customized for an industry, geographic region, fuel type, or a set of emission requirements. A thermal management system may determine a battery temperature for the set of batteries and cause one or more of a coolant system, a refrigerant system, an exhaust gas system, or an ambient air heat exchanger to add heat to the set of batteries or transfer heat away from the set of batteries.

A vehicle air conditioner having a compressor to compress a refrigerant, an air flow passage to supply air to the vehicle; a radiator; an outdoor heat exchanger; a battery temperature adjustment device for letting a heat medium circulate through a battery mounted in the vehicle, thereby adjusting a temperature of the battery; and a control device. The battery temperature adjustment device has a refrigerant-heat medium heat exchanger for performing exchange of heat between the refrigerant and the heat medium. The control device is configured to execute: a radiator and outdoor heat exchanger heating/battery cooling mode, and an obstruct inflow heating/battery cooling mode.