237results 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention provides an engine high-temperature backwater diagnosis method and device, a storage medium and electronic equipment, and is applied to the technical field of engine diagnos.The method comprises the steps that the water temperature and working condition data of an engine are collected in real time; the water temperature is matched with the preset water temperature in real time, and when the water temperature is higher than the preset water temperature, the duration when the water temperature is higher than the preset water temperature is recorded; whether the engine meets a preset high-temperature backwater counting condition or not is determined by applying the duration and the working condition data; when the engine meets the high-temperature backwater counting condition, the high-temperature backwater counting value of the engine in the preset time period is updated; and when the updated high-temperature water return count value is higher than a preset value, determining that the engine has a high-temperature water return fault. In the whole diagnosis process, whether the engine has the high-temperature backwater fault or not can be judged only through the water temperature and working condition data of the engine, the diagnosis process is simple, the manual participation degree is reduced, and the cost needed by diagnosis is effectively reduced.

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.