Scania Cv Ab

Ola Hall

Zoltan Kardos

Martin Mohlin

Rickard Eriksson

Peter Loman

Mats Ekman

Thomas Sederholm

Daniel Ryrfeldt

Björn Kylefors

Markus Mustonen

Tony STRÖMBERG

Emelie Magnusson

Pär Mikaelsson

A cooling system is disclosed having a cooling circuit with a deaeration device arranged in the cooling circuit for separation of air bubbles from coolant circulating in the coolant circuit. The deaeration device includes a deaeration chamber having a coolant inlet connected to a feed pipe of the cooling circuit, a first coolant outlet connected to a coolant pump of the cooling circuit, and a second coolant outlet connected to an expansion tank via a static line. The deaeration chamber has a larger cross-sectional dimension than the feed pipe. The second coolant outlet is located in a position in relation to the coolant inlet and the first coolant outlet such that the coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet.

Cooling system and vehicle comprising such a cooling system

A cooling system is disclosed for controlling the temperature of a battery within a temperature interval, the system comprising a chiller and a chiller line arranged in heat exchange with said chiller, a heat source and a high temperature line arranged in heat exchange with said heat source, a battery line arranged in heat exchange with the battery, a pump arranged to convey a cooling fluid in at least one of said lines, a condenser and a refrigeration circuit arranged in heat exchange with said condenser, wherein a working medium is arranged to, in operation, circulate in said refrigeration circuit, wherein a valve is arranged to selectively connect the chiller line into heat exchange with the battery line so as to provide cooling of the battery, and a valve is arranged to selectively connect the high temperature line for heat exchange with the battery line to heat the battery.

Cooling system, vehicle comprising such cooling system and a method of cooling a battery

A vehicle thermal management system is disclosed comprising a first and a second coolant circuit each comprising a coolant pump. The first coolant circuit comprises a coolant duct configured to conduct coolant flow through a portion of the first coolant circuit, and an expansion tank connected to the coolant duct. The system further comprises a first connecting conduit connecting the second coolant circuit to the coolant duct, and valve controllable between a first state in which the valve hinders flow of fluid through the first connecting conduit, and a second state in which the valve allows flow of fluid through the first connecting conduit. The present disclosure further relates to a vehicle comprising a vehicle thermal management system.

Thermal management system, and vehicle

A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.

Thermal management system, powertrain, and vehicle

A temperature control system for a vehicle, comprising a main circuit comprising a tubing in which there is provided a coolant, a main circuit pump configured to pump said coolant through the tubing in a first direction. Connected in parallel to the main circuit are first and second sub-circuits for cooling or heating of components connected thereto. In the sub-circuits there are provided first and second pumps that pump coolant through said sub-circuits from a first end to second end at which the respective sub-circuit is connected the main circuit. The first end is upstream the second end as seen in the first direction in the first circuit, and the first end of the first sub-circuit and the first end of the at least one second sub-circuit are joined to a common tubing section which in its turn is connected to the tubing of the main circuit.

Temperature control system, a vehicle provided therewith and a method for controlling the operation thereof

A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.

Multiple circuit thermal management system comprising mixing lines, and vehicle

The present invention relates to a method for controlling a vehicle in association with a descent, the vehicle having a powertrain comprising: a drive unit configured to provide propulsion power; an auxiliary brake device; and a first cooling circuit comprising a first coolant; wherein the drive unit and the auxiliary brake device are arranged to be selectively connected or disconnected with/from the first cooling circuit, wherein the drive unit has a first maximum temperature and the auxiliary brake device has a second maximum temperature higher than the first maximum temperature, the method comprising: controlling the drive unit to reduce the provided propulsion power when the vehicle is approaching an upcoming descent, which fulfils predetermined criteria; disconnecting the drive unit from the first cooling circuit; connecting the auxiliary brake device with the first cooling circuit; and controlling the auxiliary brake device to brake to vehicle down the descent.

Method for controlling a vehicle in association with a descent, a powertrain, a vehicle, a computer program and a computer-readable medium

Disclosed is a cooling system comprising: a first cooling circuit with a first coolant pump; a second cooling circuit with a second coolant pump; an expansion tank provided with an expansion chamber for accumulation of coolant, wherein the expansion chamber is connected to the second cooling circuit to allow the expansion chamber to receive coolant from the second cooling circuit; and a deaeration device arranged in the first cooling circuit for separation of air bubbles from the coolant circulating therein. The deaeration device is located at a lower position than the expansion tank and connected to said expansion chamber via a static line to allow air bubbles separated from the coolant in the deaeration device to migrate upwards in the static line towards the expansion chamber.

A cooling arrangement for an electric machine () and at least one further component () of an electric power unit: The cooling arrangement comprises an oil circuit (), an oil pump () circulating oil to the electric machine (), a first coolant circuit () configured to cool the further component () of the electric power unit, and coolant radiator arrangement () in which the coolant in the first coolant circuit () is cooled by air, The oil circuit () comprises an oil radiator (), an oil radiator fan () configured to provide an adjustable air flow through the oil radiator () and a heat exchanger () in which heat is transferred between the coolant in the first coolant circuit () and the oil in the oil circuit ().

Cooling arrangement for cooling of an electric machine and at least one further component of an electric power unit and a vehicle comprising such a cooling arrangement

A thermostat device () for a cooling system in a vehicle. The device () includes a thermostat housing () enclosing a movably arranged valve body (). The valve body is configured to distribute coolant from a thermostat chamber () to a radiator bypass line () and/or a radiator () in dependence on the position of the valve body. The device () has a first thermal expansion element () providing a first stroke of a valve body () in response to the temperature of the coolant in a the pilot chamber (), and a second thermal expansion element () providing a second stroke of the valve body () in response to the temperature of the coolant in the thermostat chamber () such that the valve body () is moved to a position defined by the strokes from the thermal expansion elements (). The pilot chamber () has an outlet passage () for directing coolant from the pilot chamber () to the thermostat chamber ().

Thermostat device for a cooling system and a cooling system comprising said thermostat device

The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.

Arrangement comprising a WHR system and a method for controlling such an arrangement

The present invention relates to a cooling system comprising a first cooling circuit cooling a first object, a second cooling circuit cooling a second object, an expansion tank, a first deaeration line directing coolant and air from the first cooling circuit to the expansion tank, and a second deaeration line directing coolant and air from the second cooling circuit to the expansion tank. The cooling system comprises further a deaeration valve configured to control the flow through the first deaeration line, a single expansion tank outlet line configured to direct all coolant in the expansion tank to the second cooling circuit and a connection line configured to direct coolant from the second cooling circuit to the first cooling circuit.

Cooling system comprising at least two cooling circuits connected to a common expansion tank

A cooling system for a combustion engine and a WHR-system in a vehicle () includes a first line () directing coolant at a first temperature (T) to a condenser () of the WHR system, a second line () directing coolant at a second temperature (T) to the condenser (), a valve arrangement () by which the flow rate of the coolant in at least one of the lines () is adjustable and a control unit () configured to control the valve arrangement () such that the coolant directed to the condenser () from the lines () has a temperature and a flow rate which results in a cooling of the working medium in the condenser () to a predetermined condensation temperature/pressure at the actual operating condition.

Cooling system for a combustion engine and a WHR system

A cooling arrangement for a WHR-system in a vehicle, includes a first cooling circuit including a first radiator in which a circulating coolant is cooled, and a second cooling circuit including a second radiator in which a coolant is cooled to a lower temperature than the coolant in the first radiator. A condenser inlet line directs coolant from one of the cooling circuits to a condenser to provide cooling for a working medium flowing therethrough. A cooling adjusting device adjusts the temperature of the coolant in the inlet line to the condenser by the coolant in the other cooling circuit based on information received about the coolant such that the coolant in the condenser inlet line provides the estimated suitable cooling of the working medium in the condenser.

Cooling arrangement for a WHR-system

A method for controlling a cooling system delivering coolant to a heat exchanger () in a vehicle (). During operating conditions when a thermostat () in the cooling system is in the partly open position, the method comprises the steps of estimating a desired cooling temperature (T) of a medium in the heat exchanger (), calculating the coolant flow rate ({dot over (m)}) through a radiator () and the coolant flow rate ({dot over (m)}) through a radiator bypass line (), calculating a coolant flow rate ({dot over (m)}) and coolant temperature (t) combination atat which the medium in the heat exchanger () is cooled to a desired temperature (T), adjusting the flow regulating mechanism () such that coolant at the selected flow rate ({dot over (m)}) and temperature (t) combination is directed to the heat exchanger ().

Growing community of inventors

Stockholm, Sweden

Ola Hall