2909results about "Coolant flow control" patented technology

A heat management system includes: a first flow passage in which a reserve tank is not provided; a second flow passage in which a reserve tank is provided; a switching device configured to switch between coupling and uncoupling of the first flow passage and the second flow passage to and from each other; and a control device configured to control the switching device. The control device is configured to, when predetermined coupling conditions are met, make the heat medium flow through the first flow passage and the second flow passage that have been coupled to each other by the switching device. When the control device determines that air bubbles exceeding the allowable volume are present in the heat medium, the coupling conditions switch from being unmet to being met.

In an embodiment, a thermal management system for a vehicle includes a refrigerant circuit having a compressor, a condenser, an expansion valve, and an evaporator, all connected via refrigerant lines, so that refrigerant passes and circulates therethrough, a coolant circuit having a water pump, a chiller, a water heater, a heater core, and a battery coolant passage through a coolant line, a bypass line installed to connect a refrigerant line between the compressor and the condenser to a refrigerant line between the expansion valve and the evaporator, a branch line branched from the bypass line and connected to the coolant line of the coolant circuit through the chiller, and a valve device configured to control a flow of the refrigerant so that the refrigerant circulating along the refrigerant line flows by selectively passing through the bypass line, the branch line, and the chiller.

The disclosure relates to an air guide control system with a flap arrangement including flaps which can be rotatably inserted into a joining partner. An actuator drives a damper and a coupling rod transmits the torque of this driven damper to the remaining dampers of the damper arrangement. In the event of a flap fracture of at least one flap, a spring, locks the flap arrangement against further movement, so that error information is reported to the actuator via the coupling rod.

The present invention provides a water circulation structure for a motorcycle engine, belonging to the technical field of motorcycles. It solves the technical problems of insufficient compactness of the existing engine water circulation structure and affecting the circulation effect. The water circulation structure of this motorcycle engine includes a reversing housing located on one side of the cylinder block. The reversing housing has a liquid inlet chamber and a liquid outlet chamber separated by a thin wall. The thin wall has a liquid passing port communicating the liquid inlet chamber and the liquid outlet chamber. Both ends of the water circuit are respectively communicated with the liquid inlet chamber and the liquid outlet chamber. The inner wall of the liquid inlet chamber has a liquid inlet for communicating with the cooling water tank, and the inner wall of the liquid outlet chamber has a liquid outlet for communicating with the cooling water tank. The thermostat is located in the liquid outlet chamber, and one end of the thermostat closes the liquid outlet. The other end of the thermostat is arranged towards the liquid passing port. After being heated, the thermostat can close the liquid passing port and open the liquid outlet. The present invention can ensure a sufficient circulating cooling effect while improving the structural compactness.

The invention discloses a hydrogen fuel engine electronic thermostat heating assembly control method based on the Internet of Things, particularly relates to the technical field of hydrogen fuel engine control, and is used for solving the problems of cooling response lag and action conflict caused by disconnection of control logic and a real-time network state of an existing temperature control system in a dynamic network environment. Electronic thermostat temperature data and network state data are collected in real time to generate a dynamic synchronization coefficient, network topology toughness evaluation and causal influence analysis are combined to predict instruction conflict areas and divide priorities, and gradient correction is performed on heating power and valve opening based on a target deviation compensation value. And a correction instruction is issued through the distributed control unit and a communication reliability weight is synchronously updated, so that dynamic coordination of a network state and a temperature control parameter is realized, and efficient and stable operation of the hydrogen fuel engine under a complex working condition is ensured.

A cooling module includes a manifold to which a valve configured to control flow of a fluid is attached and in which a fluid flow path configured to allow the fluid to flow therethrough is formed. The manifold includes a foreign matter reservoir having a flow path cross-sectional area larger than a flow path cross-sectional area of the fluid flow path and storing a foreign matter flowing through the fluid flow path. The foreign matter reservoir is connected to at least one of an inflow port configured to allow the fluid to flow therethrough into the valve and an outflow port configured to allow the fluid to flow therethrough out of the valve.

A fluid valve, in particular for a motor vehicle and / or a temperature control system, having a housing and a valve body disposed in the housing so as to be rotatable about a rotation axis. The housing has a first port and a third port disposed on opposite side of a normal plane in relation to the rotation axis and a second port which is radially spaced apart from the rotation axis and in the direction of the rotation axis is disposed between the first and the third port. The valve body in at least one rotary position connects at least two ports of the housing to one another, and in at least one other rotary position does not connect the two ports to one another.

A heat pump system for a vehicle may be capable of improving the overall efficiency of the system as well as simplifying the system. This may be achieved by adjusting the temperature of a battery module using a single chiller where the refrigerant and the coolant exchange heat, and by recollecting waste heat of the electrical components and the battery module and using it for heating the vehicle. Additionally, the overall efficiency of the system may be achieved by forming a plurality of coolant flowing lines by a single valve according to a selected mode of the vehicle.

An embodiment heat pump system includes a valve module for controlling a flow of a coolant, a first line connected to the valve module, an electrical component on the first line, a second line connected to the first line and the valve module, a radiator on the second line, a third line connected to the valve module, wherein the battery module is on the third line, a fourth line connected to the valve module and the third line, a fifth line connected to the valve module, a chiller on the fifth line, a sixth line connected to the first line, and a seventh line connected to the third line, wherein an end of the sixth line and an end of the seventh line are respectively connected to the chiller such that the sixth line and the seventh line may be connected to the fifth line through the chiller.

The invention relates to a paraffin type thermostat. The paraffin type thermostat comprises a main valve 1, a cover and seal gasket assembly 2, an upper support 3, a rubber pipe 4, a valve seat 5, a vent hole 6, a lower support 7, paraffin 8, an inductor 9, a bypass valve 10, a central rod 11 and a spring 12. The upper support, the lower support and the valve seat of the thermostat are riveted into a whole. The upper end of the central rod is fixed to the center of the upper support. The lower portion of the central rod is inserted into a central hole of the rubber pipe. The lower end of the central rod is conical. A cavity between the rubber pipe and a shell of the inductor contains the paraffin. The upper portion and the lower portion of the shell of the inductor are provided with the main valve and the bypass valve which are in linkage. The vent hole is formed in the main valve. The paraffin type thermostat is high in heat conductivity and guarantees that an engine cannot be excessively cold.

A multi-way valve includes a valve seat and a valve core. The valve core is rotatably disposed in the valve seat, the valve seat is provided with a plurality of valve port groups, each valve port group includes a plurality of valve ports, the valve core is provided with communication structure groups corresponding to the valve port groups, respectively, and each of the communication structure groups further includes a plurality of communication structures arranged along a circumferential direction of the valve core. When the valve core is rotated to different rotation positions, valve ports in different valve port groups form different communication states. Only one valve core is required to make a two-way proportional valves, three-way proportional valve, and a four-way proportional valve achieve different communication states, with simple control, compact structure and low cost.

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.

A heat pump system for a vehicle is configured to selectively exchange heat between coolant and the thermal energy generated from refrigerant at the time of condensation and evaporation of the refrigerant. The heat pump system heats the vehicle interior using the heat-exchanged high-temperature coolant and improves the heating efficiency of the vehicle by selectively using the ambient air heat, the waste heat of electrical components, and the waste heat of the battery module, at the time of heating the vehicle interior, thereby increasing the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for an optimal performance of the battery module.

The invention discloses a silicone oil clutch fan control method and device. The method comprises the steps that an engine air inlet temperature signal, a fan actual rotating speed signal, an engine cooling water temperature signal, an engine torque signal and an engine rotating speed signal are obtained; according to the engine air inlet temperature signal and the fan actual rotating speed signal, the engine air inlet temperature and the fan actual rotating speed are determined; according to the engine torque signal, the engine rotating speed signal and the cooling water temperature signal, the fan duty ratio needed by water outlet temperature cooling is determined, and according to the air inlet temperature signal, the fan duty ratio needed by air temperature cooling is determined; and determining a target fan duty ratio according to the fan duty ratio required for water temperature cooling and the fan duty ratio required for temperature cooling, determining a target rotating speed according to the target fan duty ratio, and controlling the fan to be adjusted to the target rotating speed from the actual rotating speed of the fan. The problems that in the prior art, due to the fact that an electronic control silicone oil clutch fan is imperfect in control strategy, heat of an engine is prone to being accumulated, cooling is not timely, oil consumption is high, and the engine breaks down are solved.

A multi-way valve adapted to control a flow of fluid to different thermal fluid circuits includes a valve housing, a valve flow controller, and a sealing system. The valve flow controller is arranged in the valve housing to control flow through the valve housing. The sealing system is configured to seal between the valve housing and the valve flow controller.

A cam-driven valve system comprises a valve body designed to define a multitude of fluid channels and support an array of sliding valves within those channels, thereby controlling the fluid flow. The system includes a multitude of cams mounted on a camshaft. The camshaft is arranged such that each cam is associated with a corresponding sliding valve. Rotation of the camshaft causes the valves to be actuated via the cams. The cams on the camshaft are shaped and sized differently.

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.

A radiator shutter for a motor vehicle for controlled engine ventilation, having a frame in which at least two louvres are mounted rotatably to pivot from a closed position to an open position. A motor which drives a single louvre is provided in or on the frame on an engine side of the frame. On the same side is a coupling element which synchronously transmits the rotation of the louvre to the other louvres. A locking disc is provided for each louvre on the mounting side of the frame facing away from the engine side of the frame, in the region of the mounting provided there for the louvres. The locking discs have a form which, if at least one of the locking discs does not rotate synchronously with all the other locking discs, blocks the rotational movement of the locking discs in a force-fitting and form-fitting manner.

Embodiments of this application provide a thermal management system and a vehicle. The example thermal management system includes a compressor, a first heat exchanger, a second heat exchanger, and a valve manifold. The first heat exchanger includes a first flow channel and a second flow channel that are isolated from each other, and the second heat exchanger includes a third flow channel and a fourth flow channel that are isolated from each other. An input end of the compressor is connected to an output end of the third flow channel and is configured to be connected to an output end of an evaporator core disposed on the vehicle, and an output end of the compressor is connected to an input end of the second flow channel. An input end of the first flow channel is configured to be connected to an output end of a heater core of the vehicle.

An integrated thermal management system for a vehicle includes a refrigerant line; a first coolant line for circulating coolant and connecting a first radiator, the high-temperature core, a heating core of an internal air conditioner, and a high-voltage battery with each other in parallel; a second coolant line for circulating coolant and connecting a second radiator, an electronic driving part, the low-temperature core, and a cooling core of the internal air conditioner with each other in parallel; and a third coolant line for circulating coolant and connecting a third radiator and the high-voltage battery to the second coolant line in parallel.

The invention discloses a commercial vehicle thermal management system and a control method thereof.The system comprises an electric control unit, an engine cooling loop, a hydraulic retarder cooling loop, a cooling loop on-off unit and a temperature detection unit, and the cooling loop on-off unit is used for connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop and / or connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop; the cooling loop on-off unit is used for bypassing a hydraulic retarder cooling loop; the temperature detection unit is used for detecting the environment temperature, the cooling liquid temperature and / or the cylinder cover temperature. The electric control unit controls the heat management valve, the electronic water pump, the electronic fan and the air inlet grid switch according to temperature signals. And the electric control unit controls the cooling loop on-off unit according to the working state of the hydraulic retarder so as to connect and disconnect the hydraulic retarder cooling loop and the engine cooling loop. Therefore, the engine and the hydraulic retarder share one set of cooling loop, and the cooling loop is switched on and off according to the working state of the hydraulic retarder, so that the vehicle has good heat dissipation performance.

A cooling system, comprising: - a first cooling circuit (10), the first cooling circuit having a first coolant pump (12); - a second cooling circuit (20), the second cooling circuit having a second coolant pump (22); - an expansion tank (30), the expansion tank being provided with an expansion chamber (31) for accumulating coolant, wherein the expansion chamber is connected to the second cooling circuit (20) so as to allow the expansion chamber to receive coolant from the second cooling circuit; and - a degassing device (40), the degassing device being arranged in the first cooling circuit for separating bubbles from the coolant circulating therein. The degassing device (40) is located at a position lower than the expansion tank (30) and is connected to the expansion chamber (31) via a static pipeline (5) so as to allow the bubbles separated from the coolant in the degassing device to migrate upward in the static pipeline towards the expansion chamber.

The invention relates to a vehicle heat management method and device, a vehicle and a computer storage medium, and belongs to the technical field of vehicle heat management.The vehicle heat management method comprises the steps that historical working condition data of the vehicle in a first time period before the current moment is obtained through a sliding window method; a plurality of working condition prediction models are adopted to predict the working condition of the vehicle in a second time period after the current moment based on the historical working condition data, a plurality of candidate working conditions are obtained, and the predicted working condition of the vehicle in the second time period is determined by combining the weight of each working condition prediction model; and when the predicted working condition meets a preset thermal management condition, the working state of an engine cooling system of the vehicle is adjusted, so that the temperature of an engine of the vehicle within the second time period is within a preset temperature range. Predictive heat management of the engine can be achieved, timeliness of heat management of the engine is improved, and energy is saved.

The utility model provides an intelligent diesel generating set which comprises a mounting plate, one end of a radiating pipe is fixedly communicated with a water collecting pipe, the bottom of the water collecting pipe is fixedly communicated with a water return pipe, the water return pipe is fixedly communicated with a cooling liquid tank, and a communicating pipe is provided with a one-way valve. A temperature control assembly is arranged, a water pump pumps out cooling liquid in a cooling liquid box, the cooling liquid enters a heat dissipation pipe through a water distribution pipe and exchanges heat with air, the cooling liquid is subjected to heat dissipation and cooling, the cooled cooling liquid flows back into the cooling liquid box through a water return pipe, and low-temperature cooling liquid in the cooling liquid box flows back into the cooling liquid box again through a communicating pipe; and the diesel generator is continuously cooled. When the temperature is low, the water pumps are closed, cooling liquid in the cooling liquid box is not cooled, viscosity of engine oil is reduced, different water pumps are started to cool different diesel generators, independent control over the generator set is facilitated, and it is guaranteed that the temperature of each diesel generator is kept stable.

The embodiment of the invention provides an automobile cooling fan control method and device and a vehicle, and relates to the technical field of automobile cooling fan control, after it is judged that a whole vehicle is in a high-voltage or charging state, engine water temperature correction is carried out based on the current driving environment and vehicle state parameters, and a first duty ratio is obtained; air conditioner temperature correction is conducted based on the current vehicle speed and the air conditioner operation condition, and a second duty ratio is obtained; based on the current vehicle speed and the temperature condition of the preset part, temperature correction is conducted on other parts, and a third duty ratio is obtained; and taking the maximum value in the corrected duty ratio as a target duty ratio for controlling the operation of the cooling fan. According to correction of temperature angles of different parts, comprehensive heat dissipation considerations are obtained, and after the heat dissipation considerations are weighed and selected, the control precision of the automobile heat dissipation fan is higher, and the service life of the automobile parts can be prolonged.

The invention discloses a digital intelligent temperature control air cooling system for an engineering vehicle, relates to the technical field of intelligent temperature control, and accurately judges the specific working condition of the engineering vehicle through a working condition recognition model, so that a temperature control strategy can be customized and finely adjusted according to different working conditions; then the future temperature change trend is predicted through the working temperature prediction model, so that cooling is started or enhanced in advance, the problem of response lag of a traditional temperature control system is fundamentally solved, temperature overshoot is effectively avoided, the reliability of an engineering vehicle is improved, and the service life of parts is prolonged; and the energy consumption of accessories such as a fan is remarkably reduced through fine control, and the comprehensive benefits of improving the whole vehicle performance and reducing the maintenance cost are finally achieved.

The embodiment of the invention relates to a method and system for controlling the rotating speed of a cooling fan of a loader and a medium, and belongs to the technical field of cooling fans of loaders, the control method comprises the steps that the double-closed-loop control process of the rotating speed of the fan is executed, and the rotating speed of the fan is calculated through a PD calculation method; based on the rotating speed target value of the cooling fan, the actual hydraulic pressure value at the current moment and the actual hydraulic pressure values at the first two moments, an expected output current value at the current moment is obtained; calculating the expected voltage value of the electric control valve core at the current moment based on the expected output current value at the current moment, the actual output current value at the current moment, the actual output current value at the last moment and the target rotating speed value of the cooling fan by utilizing a PI calculation method; accurate control of the rotating speed of the fan is achieved, the hysteresis problem of a control valve element is avoided, and the rotating speed of the cooling fan is closer to the ideal target rotating speed.

A heat pump system for a vehicle may be configured to adjust a temperature of a vehicle interior by selectively exchanging heat between coolant and thermal energy generated from refrigerant at the time of condensation and evaporation. The system may use the heat-exchanged low-temperature or high-temperature coolant to improve the heating efficiency of the vehicle. The system may selectively use ambient air heat, waste heat of electrical components, and waste heat of a battery module, at the time of heating the vehicle interior. The system may increase the overall travel distance of the vehicle by efficiently adjusting the temperature of a battery module for optimal performance of the battery module.