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Vehicular coolant system and method of controlling the same
A coolant system includes a battery coolant line fluidly connected to a battery, a power electronics coolant line fluidly connected to a power electronic component, a radiator coolant line fluidly connected to a radiator, a control valve configured to allow the battery coolant line, the power electronics coolant line, and the radiator coolant line to be fluidly connected to or separated from each other, a temperature sensor disposed in at least one of the battery coolant line, the power electronics coolant line, or the radiator coolant line, and a controller configured to control a switching operation of the control valve under a predetermined condition in a manner that fluidly connects a coolant line without any temperature sensor to a coolant line with the temperature sensor, and determine a temperature of a coolant passing through the coolant line without any temperature sensor based on a temperature sensed by the temperature sensor.
Owner:HYUNDAI MOTOR CO LTD +1
Cooling system for vehicles and control method thereof
ActiveUS20190136743A1Improve vehicle performanceimprove fuel efficiencyLiquid coolingElectrical controlNuclear engineeringCoolant flow
A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.
Owner:HYUNDAI MOTOR CO LTD +1
Vehicle thermal management system and vehicle
A vehicle includes a thermal management system. The thermal management system of the vehicle comprises an engine cooling system, an air conditioning system, and a low-temperature cooling system. The engine cooling system comprises an engine, an intercooler, a first heat dissipation device, and a first fan. An air outlet end of the intercooler is in communication with an air inlet manifold, and an air inlet end of the intercooler is in communication with a supercharger. The first fan is used for dissipating heat for the intercooler and the first heat dissipation device. The low-temperature cooling system comprises a second heat dissipation device and a second fan, and the second fan is used for dissipating heat for the second heat dissipation device and a condenser.
Owner:BYD CO LTD
Engine electronic main water pump control method, device and storage medium
ActiveCN116816487BCoolant flow controlInternal combustion piston enginesLoop controlMechanical engineering
The present invention relates to the field of engine control technology, and specifically provides an engine electronic main water pump control method, device and storage medium. In the method: S1, obtains a first parameter group and a knock compensation parameter, and determines whether the electronic main water pump can start closed-loop control based on a target water temperature based on the first parameter group and the knock compensation parameter. If the determination is yes, enters S2; S2, determines whether the conditions for starting the knock compensation function are met based on the current engine state; if the determination result is yes, enters S3, and if the determination result is no, enters S5; S3, determines whether knock compensation is performed based on the current electronic main water pump output offset. If the electronic main water pump output offset is greater than a preset value, knock compensation is performed and enters S4; otherwise, enters S5; S4, switches the closed-loop control based on the target water temperature to the open-loop control based on the target water temperature; S5, starts the open-loop control strategy based on the target water temperature; in this way, the purpose of increasing the engine cooling intensity and thermal efficiency is achieved.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Thermal management system for vehicle
A vehicle thermal management system including a heating heat exchanger which exchanges heat with air within an air-conditioning case to heat the air, and a cooling heat exchanger which exchanges heat with air to cool the air; a refrigerant line circulating through a compressor, a condenser, an expansion valve, and a chiller; a first coolant line that passes through the heating heat exchanger and exchanges heat with the condenser of the refrigerant line; a second coolant line that passes through the cooling heat exchanger and exchanges heat with the chiller of the refrigerant line; a radiator that exchanges heat between the coolant and outside air; a third coolant line that passes through the radiator and exchanges heat with a battery of a vehicle; and a mixing tank provided to mix the coolant of the first coolant line, the second coolant line, and the third coolant line.
Owner:HANON SYST CO LTD
Flow test distribution device, flow distribution system and diesel engine
The flow test distribution device is arranged on each branch pipeline and comprises a measuring assembly and an adjusting assembly, and each measuring assembly comprises a first pressure test pipe section, a second pressure test pipe section and a resistance element located between the first pressure test pipe section and the second pressure test pipe section. The first pressure testing pipe section and the second pressure testing pipe section are respectively provided with a pressure monitoring component for obtaining the fluid pressure difference of the branch pipelines and further obtaining the flow distribution condition of each branch pipeline; and the adjusting assembly is arranged at the downstream of the measuring assembly and used for adjusting the output flow of the branch pipelines according to the flow distribution condition. The invention further provides a flow distribution system and a diesel engine. According to the flow test distribution device, the uniformity of fluid flow distribution can be improved in a limited arrangement space.
Owner:THE 711TH RES INST OF CHINA STATE SHIPBUILDING CORP
Thermal management system
ActiveUS12441157B2Cell temperature controlCells structural combinationThermal management systemHeat control
A thermal management system includes: an electrical storage device configured to exchange heat with a first flow path; a drive device configured to exchange heat with a second flow path; a radiator provided on a third flow path; a chiller device provided on a fourth flow path; and a switching device. In the thermal management system, during heating control for the electrical storage device, the switching device are controlled so that a connection flow path connecting the first flow path and the fourth flow path is formed and that the connection flow path, the second flow path, and the third flow path are disconnected from and independent of each other.
Owner:TOYOTA JIDOSHA KK
Vehicle control device and vehicle control method
The invention relates to a vehicle control apparatus and a vehicle control method. The vehicle control apparatus may calculate a sum of power consumed according to at least one or any combination of power consumed due to air resistance, power consumed due to operation of a cooling fan that increases airflow introduced into an engine compartment of a vehicle, or power consumed due to operation of an air conditioner, and control at least one or any combination of flaps or cooling fans that open and close an air inlet of the engine compartment such that the sum of power consumed is minimized in response to ensuring a target air flow indicative of an air flow required through a condenser or a radiator of the air conditioner depending on vehicle operation.
Owner:HYUNDAI MOTOR CO LTD +1
tank
A tank having a housing which provides a space for a liquid. An enclosure forming a sub space is arranged inside the housing at an upper part of the housing for trapping air when the liquid surface in the tank is inclined relative to the housing. An upper end of the enclosure is closed and airtight and a lower end of the enclosure is open connecting the space and the sub space fluidly to each other.
Owner:NINGBO GEELY AUTOMOBILE RES & DEV CO LTD +1
Two zone radiator cooling system
The invention is to utilize one radiator instead of two to cool two separate vehicle cooling systems. The main embodiment is a single radiator cooling system that partitions the physical radiator into two separate surface areas that are dedicated for each of the two respective circuits. A processor can control an actuator that drives a screw and plunger mechanism to push and pull a plunger. The plunger separates the two surface areas so as the plunger is moved, a corresponding surface area is increased or decreased for a cooling circuit. An increase in the surface area can provide more cooling for that circuit as the fluid has more core area to travel through. Temperature sensors can provide data to a processor that can adjust the actuator to provide cooling relief to the circuit where its most required.
Owner:VOLVO CAR CORP
Vehicle control apparatus and vehicle control method
Disclosed are a vehicle control apparatus and a vehicle control method. The vehicle control apparatus may calculate a total sum of consumed power according to at least one of power consumed due to an air resistance, power consumed due to an operation of a cooling fan that increases flow of air introduced into an under-hood of a vehicle, or power consumed due to an operation of an air conditioner, or any combination thereof, and control at least one of an air flap that opens and closes an air inlet of the under-hood or a cooling fan, or any combination thereof such that the total sum of the consumed power is minimized in response to securing of a target air flow rate representing a flow rate of air required to pass through a condenser or a radiator of the air conditioner according to an operation of the vehicle.
Owner:HYUNDAI MOTOR CO LTD +1
A vehicle and its thermal management control method, device and storage medium
The present application provides a vehicle and its thermal management control method, device and storage medium, wherein the vehicle includes an engine and a thermal management system, the thermal management system includes a water pump, the engine and the water pump are connected to form a first cooling cycle, and the thermal management control method includes: when the current temperature of the engine is less than or equal to a preset temperature threshold, and the total engine power is greater than or equal to a preset power threshold, and the current vehicle speed is less than or equal to a preset vehicle speed threshold, controlling the water pump to periodically switch between a start state and a stop state. The thermal management control method provided in the present application, when the engine is in a high-power, low-speed warm-up mode, periodically controls the water pump to switch between a start state and a stop state, thereby avoiding local overheating of the engine and placing the thermal management system in a state of minimum power consumption.
Owner:BYD CO LTD
Active coolant monitoring and leak mitigation in vehicle cooling systems
ActiveUS20250172088A1Coolant flow controlRegistering/indicating working of vehiclesExpansion tankCoolant flow
A vehicle cooling system includes a heat exchanger, upper and lower coolant hoses extending between the heat exchanger and a vehicle power system for carrying liquid coolant to and from the vehicle power system, and an expansion tank fluidly coupled to the lower coolant hose. The vehicle cooling system further includes an active coolant monitoring system that includes a coolant leak sensor that detects leakage of the liquid coolant from the vehicle cooling system and a coolant contamination sensor that detects contamination of the of liquid coolant. The vehicle cooling system further includes an electronically controllable coolant flow shutoff valve in series with the lower coolant hose adjacent a lower coolant outlet of the heat exchanger. The electronically controllable coolant flow shutoff valve is closed when the coolant pump is off and open when the coolant pump is on.
Owner:VOLVO TRUCK CORP
Method for constructing local flow model, apparatus and device, and medium
A method for constructing a local flow model includes: obtaining a target physical model corresponding to a thermal management system based on acquired first flow data of the thermal management system; calculating second flow data of coolant at a target heat exchange component in the thermal management system based on the target physical model; and obtaining a local flow model for the coolant at the target heat exchange component by training a preset model according to the second flow data and a target characteristic parameter for controlling operation of the thermal management system corresponding to the second flow data.
Owner:BEIJING CO WHEELS TECH CO LTD
Control system for cooling fan, work machine, and method of controlling cooling fan
A control system for a cooling fan that can ensure cooling capability of the cooling fan is provided. The control system includes an engine, a work implement driven by the engine, a cooling fan configured such that the number of rotations thereof is controllable independently of the number of rotations of the engine, and a controller that controls the cooling fan. The controller controls the cooling fan to make a difference in frequency between the cooling fan and the engine larger than the difference at a time point when the controller obtains the frequency of the cooling fan, by changing the frequency of the cooling fan when the number of rotations of the engine is larger than a threshold value and the frequency of the cooling fan is within a prescribed range from a frequency of the engine while the work implement is in a standstill.
Owner:KOMATSU LTD
Reservoir tank and coolant module including the same
The present disclosure relates to a reservoir tank for storing coolant and a coolant module including the same and relates to a reservoir tank and a coolant module, which have a baffle inside the reservoir tank to improve noise performance and coolant circulation performance and are formed to restrict the upward movement of a floating member using the baffle to improve manufacturing convenience.
Owner:HANON SYST CO LTD
Motor cooling system and motor cooling method using the same
Provided are a motor cooling system and a motor cooling method. The motor cooling system and the motor cooling method using the same may secure improved motor efficiency and output by further lowering a temperature of a drive motor cooling oil by establishing a system that achieves an improved cooling effect by changing a medium for lowering the oil temperature from an inverter or integrated charging control unit (ICCU) coolant to a refrigerant used for cooling a coolant of a battery.
Owner:HYUNDAI MOBIS CO LTD
Method and control arrangement for controlling the operation of a fan in a vehicle cooling system
Method and control arrangement (17) for controlling the operation of a fan (11) in a cooling system (20) of a vehicle, wherein the operation of the fan (11) is controlled based on the temperature of a coolant in the cooling system (20) in accordance with a setpoint temperature of the coolant. The method comprises monitoring (S1) an engine oil temperature of an engine (14) of the vehicle (1) during a plurality of driving cycles with the vehicle (1); and setting (S3) the setpoint temperature of the coolant based on a measurement indicating a plurality of maximum engine oil temperatures during the plurality of driving cycles.
Owner:SCANIA CV AB
Hybrid electric vehicle
An HEV mode and a BEV mode is a hybrid electric vehicle capable of traveling, comprising: a radiator; an air conditioner including a condenser and a pressure sensor for performing air conditioning in a room; a cooling fan that operates in response to the rotation of the engine to blow cooling air to the radiator and the condenser; and a control unit that controls the operation of the engine and the air conditioner, wherein the control unit reduces the amount of heat dissipation of the condenser when the high pressure of the cooler detected by the pressure sensor during traveling in BEV mode becomes equal to or higher than the first pressure.
Owner:TOYOTA JIDOSHA KK
Method for dissipating heat from vehicle, storage medium and vehicle
Owner:GREAT WALL MOTOR CO LTD
Water pump diagnostic device
To make it possible to diagnose whether or not a water pump has a failure without being based on the rotation speed of the water pump.SOLUTION: A water pump diagnosis device diagnoses a water pump that circulates a coolant for cooling a cooling target. The water pump diagnosis device comprises a temperature sensor and a diagnosis unit. The temperature sensor measures the temperature of a power semiconductor that is a part of the cooling target. The diagnosis unit determines whether the water pump has a failure on the basis of a comparison between a temperature rise rate of the power semiconductor based on the temperature measured by the temperature sensor and a preset reference temperature rise rate.SELECTED DRAWING: Figure 4
Owner:HONDA MOTOR CO LTD
Water pump diagnosis device
A water pump diagnosis device diagnoses a water pump that circulates a coolant that cools a cooling target. The water pump diagnosis device includes a temperature sensor and a diagnosis unit. The temperature sensor measures a temperature of a power semiconductor, which is a part of the cooling target. The diagnosis unit determines whether the water pump has failed based on a comparison between a temperature rise rate of the power semiconductor based on a temperature measured by the temperature sensor and a preset reference temperature rise rate.
Owner:HONDA MOTOR CO LTD
Coolant circuit in a vehicle
A coolant circuit in a vehicle includes a first flow control unit disposed in a main duct between an engine and a radiator. The first flow control unit, as a function of a temperature of a coolant, thermostatically controls a flow of the coolant. A bypass duct is fluidically disposed parallel to the radiator where the bypass duct opens into the main duct after the radiator and branches off the main duct between the engine and the first flow control unit. A second flow control unit is disposed in the bypass duct where the second flow control unit is configured such that the second flow control unit opens or closes the bypass duct as a function of the temperature of the coolant.
Owner:BAYERISCHE MOTOREN WERKE AG
Oil temperature control system for electric vehicle
An embodiment oil temperature control system for an electric vehicle includes a heat exchange unit that performs heat exchange between an oil for cooling a driving motor and a coolant, a temperature sensor including an oil temperature sensor or an outside air temperature sensor, a controller that receives a signal from the temperature sensor to determine whether a heat generation mode entry condition to cause a power electronic part to generate heat is satisfied and operates the power electronic part in a heat generation mode when the heat generation mode entry condition is satisfied, and a cooling system that allows the coolant used to cool the power electronic part operating in the heat generation mode to circulate through a passage penetrating the heat exchange unit so that the coolant exchanges heat with the oil in the heat exchange unit.
Owner:HYUNDAI MOTOR CO LTD +1
Pressure equalization tank for a coolant system of an electrically driven motor vehicle
The invention relates to a pressure equalization tank (110) for a coolant system (100) of an electrically driven motor vehicle (1), comprising: - a first partial volume (110a) filled with pressurized gas, - a second partial volume (110b) filled with a coolant, - an electronically controlled valve (128) operable to release pressurized gas from the pressure equalization tank (110) when the coolant pressure exceeds a threshold value.
Owner:VOLVO TRUCK CORP
Cooling System of Internal Combustion Engine
This cooling system which is for an internal combustion engine and which is mounted on a vehicle, comprises: an air conditioning device having a heat exchanger and mounted on the vehicle; a first passage which is connected to the heat exchanger and through which cooling water for the internal combustion engine is supplied to the heat exchanger; a second passage which is connected to a cooling device of oil of a transmission device connected to the internal combustion engine or oil filling the internal combustion engine, and through which the cooling water is supplied to the cooling device; a flowrate control valve for controlling the flowrate of the cooling water to the first passage and the second passage; and a control device that controls the internal combustion engine and the flowrate control valve. The control device executes first control for controlling the flowrate control valve to a position where the first and second passages open when the temperature of the oil is higher than that of the cooling water.
Owner:MITSUBISHI MOTORS CORP
A control method for a vehicle radiator fan
The present invention discloses a control method for a vehicle radiator fan, which belongs to the technical field of engine control. The present invention considers the following aspects: the reason for fan control based on water temperature is that the fan needs to be turned on when the water temperature is too high to avoid poor vehicle power, economy and emissions, and to avoid the occurrence of knock; the reason for fan control based on intake air temperature and vehicle speed is that when the intake air temperature is too high and the vehicle speed is too low, the risk of engine knock will increase; the purpose of dynamic control and intelligent control optimization based on the real-time performance of the cooling system is to perform dynamic control optimization in real time because the engine operating conditions are transient and complex, and to improve control optimization for cooling system aging to provide control accuracy.
Owner:DONGFENG MOTOR GRP
Thermal management systems for transferring heat between fluids
ActiveCN115123559BPower plant cooling arrangmentsAir coolingProcess engineeringThermal management system
A thermal management system for transferring heat between fluids includes a heat transfer bus through which a heat exchange fluid flows. Furthermore, the system includes a heat source heat exchanger arranged along the bus such that heat is added to the fluid flowing through the heat source heat exchanger. Furthermore, the system includes a plurality of radiator heat exchangers arranged along the bus such that heat is removed from the fluid flowing through the plurality of radiator heat exchangers. Furthermore, the system includes a bypass conduit fluidically coupled to the bus such that the bypass conduit allows the fluid to bypass one of the heat source heat exchangers or one of the radiator heat exchangers. Furthermore, the system includes a valve configured to control the flow of the fluid through the bypass conduit based on the pressure of the fluid within the bus.
Owner:GENERAL ELECTRIC CO
vehicle
This invention relates to and provides a vehicle in which multiple heat exchangers are mounted in the engine compartment, allowing for optimal distribution of driving air (cooling air) according to conditions. One aspect of the vehicle includes: a first heat exchanger disposed in the engine compartment for cooling the engine; a second heat exchanger disposed in the engine compartment for recovering exhaust heat from the engine; a louver component for opening and closing a grille opening located at the front of the engine compartment; a first detector for detecting feedforward parameters indicating a potential increase in load on either the first or second heat exchanger; a second detector for detecting feedback parameters indicating an increase in load on either the first or second heat exchanger; and a control device for controlling the opening and closing of the louver component, which, based on the feedforward and feedback parameters, adjusts the opening of the louver component to direct driving air through the grille opening to either the first or second heat exchanger.
Owner:SUBARU CORP
Cooling system for hybrid vehicle
A first cooling system (15) has a main passage (16) through which first cooling water can circulate, a radiator (18) for performing heat exchange with the first cooling water, an intercooler (11) for cooling supercharged intake air of an internal combustion engine (1) by using the first cooling water, a bypass passage (17) connected to the main passage (16) so as to to bypass the radiator (18), and a bypass valve (21) for controlling the flow rate of the first cooling water flowing through the bypass passage (17). The intercooler (11) is positioned on the downstream side of a high-power unit (19) and on the upstream side of the radiator (18) in terms of the direction in which the first cooling water flows. The bypass valve (21) is controlled such that the first cooling water does not flow to the radiator (18) when the temperature of the first cooling water is less than a first prescribed value.
Owner:NISSAN MOTOR CO LTD