134results about "Measurement device" patented technology

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

The invention relates to a fan control system and method for a vehicle. A fan control system for a vehicle may include: a vehicle speed sensor for sensing a vehicle speed; the engine cooling liquid temperature sensor is used for sensing the temperature of engine cooling liquid; the fan is arranged adjacent to the engine coolant radiator and is used for providing flowing air for the engine coolant radiator; and a controller configured to determine whether the vehicle is in an idle state based on a vehicle speed sensed by the vehicle speed sensor, determine whether a temperature of the cooling liquid is in a first temperature range based on a temperature of the cooling liquid sensed by the engine cooling liquid temperature sensor when the vehicle is in the idle state and the fan is not operating, and control the engine cooling liquid when the vehicle is in the idle state and the fan is not operating. And when the temperature of the cooling liquid is within the first temperature range, whether a fan forced operation condition is met or not is determined, and when the fan forced operation condition is met, the fan is made to operate for first preset time.

Present disclosure relates to a computer system (700) comprising processing circuitry (702) configured to: obtain temperature data (T) comprising a temperature (T1, T2, T3) at a first input port (131), a second input port (132) and an output port (133) connected to the first and second input port (131, 132) of a liquid cooling system (100), obtain flow distribution data comprising a flow distribution value indicative of the flow from the first and second input port (131, 132) at the output port (133), determine an expected temperature (TE1, TE2, TE3) at the first input port (131), the second input port (132) and the output port (133) based on the flow distribution value and the temperature data (T), determine an expected flow distribution based on the temperature data (T), and provide control data for control of the liquid cooling system (100).

An engine includes pistons, cylinders, at least one fuel injector, spark plugs, and piston cooling jets. The engine includes an Electronic Control Unit configured to receive an engine oil temperature, current coolant temperature, current spark value, calibrated spark value, current engine speed, and current engine torque. The Electronic Control Unit is configured to determine a non-firing piston temperature, coolant temperature and combustion phase modifier, and firing piston temperature. The Electronic Control Unit outputs a predicted piston temperature. A method includes housing pistons in cylinders, supplying air, injecting fuel, combusting an air-fuel mixture, spraying engine oil, and receiving an engine oil temperature, current coolant temperature, current spark value, calibrated spark value, current engine speed, and current engine torque. The method includes determining a non-firing piston temperature, coolant temperature modifier, combustion phase modifier, firing piston temperature, outputting a predicted piston temperature, and coordinating operations of the fuel injectors and spark plugs.

Method for a cooling system (100), comprising: Adjusting a coolant flow with a thermostat (145) based on the thermostat position, estimating a coolant temperature (T RO ) at a position between one end of a radiator block (153) and a connection point (150) between a lower hose (143) of a radiator (141) and a heater core output line (151); and Specify a cooling system condition based on the estimated coolant temperature (T RO ), wherein the cooling system condition includes a malfunction of the radiator (141), a radiator life, and a thermostat degeneration.

A method and control arrangement for controlling operation of a fan in a cooling system of a vehicle, wherein operation of the fan is controlled based on a temperature of a coolant in the coolant system meeting a set-temperature of the coolant. The method comprises monitoring an engine oil temperature of an engine of the vehicle during a plurality of driving cycles with the vehicle; and adjusting the set-temperature of the coolant based on a measure indicative of a plurality of maximum temperatures of the engine oil during the plurality of driving cycles.

A generator system comprising a generator and an engine positioned within an enclosure, the engine having an engine coolant system and an air intake; a fan positioned to force air through the heater core; a low temperature fluid circuit comprising a heater core positioned within the enclosure, a first coolant heater in fluid communication with the heater core, and a first pump in fluid communication with the first coolant heater and configured to pump heated coolant from the first coolant heater to the heater core; and a high temperature fluid circuit comprising a radiator, second coolant heater, and a second pump in fluid communication with the second coolant heater and configured to pump heated coolant from the second coolant heater through the high temperature fluid circuit, wherein the low temperature fluid circuit and the high temperature fluid circuit are each in fluid communication with the coolant system of the engine.

An engine (11) includes pistons (71), cylinders, at least one fuel injector (61), spark plugs (239), and piston cooling jets (91). The engine (11) includes an Electronic Control Unit (232) configured to receive an engine oil temperature, current coolant temperature, current spark value, calibrated spark value, current engine speed, and current engine torque. The Electronic Control Unit (232) is configured to determine a non-firing piston temperature, coolant temperature and combustion phase modifier, and firing piston temperature. The Electronic Control Unit (232) outputs a predicted piston temperature. A method includes housing pistons (71) in cylinders, supplying air, injecting fuel, combusting an air-fuel mixture, spraying engine oil, and receiving an engine oil temperature, current coolant temperature, current spark value, calibrated spark value, current engine speed, and current engine torque. The method includes determining a non-firing piston temperature, coolant temperature modifier, combustion phase modifier, firing piston temperature, outputting a predicted piston temperature, and coordinating operations of the fuel injectors (61) and spark plugs (239).

A device for exchanging vehicle fluids is disclosed. The device comprises a first fluid port to connect to a first assembly of a vehicle, the first assembly containing a first vehicle fluid. The device further comprises a second fluid port to connect to a second assembly of the vehicle, the second assembly containing a second vehicle fluid. The device further comprises a first fluid control arrangement configured to selectively permit fluid flow from the first assembly to the first fluid port and to selectively permit fluid flow from the first fluid port to the first assembly. The device further comprises a second fluid control arrangement configured to selectively permit fluid flow from the second assembly to the second fluid port and to selectively permit fluid flow from the second fluid port to the second assembly.

The invention discloses a cooling liquid temperature sensor diagnosis method, device and equipment and a storage medium, and belongs to the technical field of vehicle intelligent control. According to the method, the temperature reference interval of the engine is determined based on the air inlet temperature, the radiator outlet temperature, the environment temperature and the target heating temperature; in response to the condition that the temperature of the cooling liquid is greater than the upper limit value of the temperature reference interval, performing fault detection on the cooling liquid temperature sensor based on the temperature of the PTC heater and the temperature of the cooling liquid; and in response to the fact that the cooling liquid temperature sensor does not break down, the engine is controlled to work based on the cooling liquid temperature. The method and the device can avoid influence on engine work caused by misjudgment of the fault of the coolant temperature sensor, and ensure normal running of the vehicle.

A system for operating a cooling device of a utility vehicle includes an axial fan, a temperature sensor, and a control unit. The axial fan can be rotated by a fan drive and is used to generate a cooling air stream for impingement on a vehicle assembly that is to be cooled. The axial fan has a plurality of fan blades that can be pivoted in terms of an angle of incidence by deflection of an actuator. The temperature sensor determines an actual value of a temperature variable that reflects a present operating temperature of the vehicle assembly. The control unit compares the actual value of the temperature variable with a specified setpoint value to output a target value of a control variable provided for the operation of the actuator. The control variable is one of a hydraulic and a pneumatic operation pressure for deflecting the actuator.

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.

Method for detecting boiling of a coolant in a cooling system (1) of a motor vehicle, wherein pressure fluctuations of the coolant are determined by means of a pressure sensor (35) and such pressure fluctuations, which are defined as characteristic of a breakup of boiling bubbles, are evaluated as boiling of the coolant, characterized by the use of a pressure sensor (35) which is assigned to a cooling channel (10) of a cylinder housing (3) of an internal combustion engine (2) integrated into the cooling system (1), wherein at least temporarily a flow through the cooling channel (10) is prevented, wherein when a boiling hazard has been detected, a flow through the cooling channel (10) is permitted.

The present invention aims to efficiently preheat and maintain the temperature of a catalyst. The present invention relates to a drive system comprising: an internal combustion engine; a catalyst unit that purifies exhaust gas from the internal combustion engine; a motor used for at least one of driving and regeneration; and a flow path formed so that an oily medium that lubricates the motor flows near the catalyst unit. The oily medium is heated by the motor and then heat is exchanged in the catalyst unit, thereby heating the catalyst unit.

Disclosed is a vehicle thermal management system capable of reducing power consumption of an electric compressor, capable of simplifying a circuit, and capable of reducing weight and cost by reducing the number of heat exchangers and refrigerant valves. The vehicle thermal management system is provided with: a heating heat exchanger that exchanges heat with air in an air conditioning case to heat the air; a cooling heat exchanger that exchanges heat with the air in the air conditioning case to cool the air; a refrigerant circuit that circulates a compressor, a condenser, an expansion valve, and a cooler; a first cooling water circuit that passes through the heating heat exchanger and exchanges heat with the condenser of the refrigerant circuit; a second cooling water circuit that passes through the cooling heat exchanger and exchanges heat with the cooler of the refrigerant circuit; a radiator that exchanges heat between cooling water and outdoor air; a third cooling water circuit that passes through the radiator and exchanges heat with a battery of the vehicle; and a mixing tank configured to mix the cooling water of the first cooling water circuit, the second cooling water circuit, and the third cooling water circuit.

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.

A control device of a vehicle and a method of estimating a temperature of a component of an internal combustion engine. The control device of the vehicle executes: a base temperature calculating process of calculating a base temperature of a component of an internal combustion engine; a correction value calculating process of calculating a correction value; a queue reflecting process of causing the correction value to reflect a tendency that the component is less likely to be cooled in a case where the temperature-estimating vehicle, in which the component whose temperature is estimated is mounted, is one of a plurality of vehicles constituting a queue than in a case where the temperature-estimating vehicle is a following vehicle; a last reflecting process of causing the correction value to reflect a tendency that the component is more likely to be cooled in a case where the temperature-estimating vehicle is a last vehicle than in a case where the temperature-estimating vehicle is not the last vehicle; and a component temperature estimating process of correcting the base temperature using the correction value.

System (10), comprising: a coolant pump (14) configured to be mechanically driven by a power machine (12) and to send coolant to an inlet of the power machine (12); a first rotary valve (16) configured to receive coolant from an outlet of the engine (12) and to send coolant to a main cooler (20) and a heater core (26), wherein the first rotary valve (16) is adjustable to a flow position equal to zero in order to prevent coolant flow to the main cooler (20) and the heater core (26) and thereby increase a rate at which the engine (12) heats coolant flowing therein; a second rotary valve (18) configured to receive coolant from the first rotary valve (16) and to send coolant to an engine oil heat exchanger (28) and a transmission oil heat exchanger (30), wherein the second rotary valve (18) is adjustable to a flow position equal to zero to prevent coolant flow to the engine oil heat exchanger (28) and the transmission oil heat exchanger (30); and an engine inlet line extending from the coolant pump (14) to the engine inlet (12), wherein the second rotary valve (18) is configured to receive coolant from the engine inlet line; characterized by an auxiliary cooler (22) configured to: to receive coolant from the engine intake line; to send coolant to the second rotary valve (18); and to cool the coolant flowing through the auxiliary cooler (22).

A cooling system for an internal combustion engine is equipped with an air conditioner having a heat exchanger, a first passage connected to the heat exchanger and supplies cooling water of the engine to the heat exchanger, a second passage connected to a cooling apparatus for oil which fills a speed change mechanism connected to the engine or for oil which fills the engine and which supplies the cooling water to the cooling apparatus, a flow control valve configured to control the flow rate of the cooling water to the first passage and the second passage, and a controller configured to control the engine and the flow control valve. When the temperature of the oil is higher than the temperature of the cooling water, the controller performs a first control which controls the flow control valve to a position in which the first passage and the second passage are open.