102results about How to ""quick" warm-up" patented technology

The invention relates to an engine cooling system adopting a delayed circulation flow path. The engine cooling system comprises a high-temperature circulating cooling system and a low-temperature circulating cooling system, wherein the high-temperature circulating cooling system comprises a large circulation cooling fluid flow path, a small circulation cooling fluid flow path and a delayed circulation cooling fluid flow path. The engine cooling system has the beneficial effects that the heating requirements of all the parts after an engine stops can be better met and the problem of the flow direction of cooling circulation among different parts can be solved by adding an electronic control auxiliary water pump to the high-temperature circulating cooling system and realizing delayed circulation.

The invention discloses an engine cooling circulation system with the bypass cooling function. The engine cooling circulation system comprises a cooling liquid box used for containing cooling liquid. The cooling liquid box is communicated with a water pump. A water outlet of the water pump is connected with a water inlet of an air cylinder body. A water outlet of the air cylinder body is connected with a water inlet of an air cylinder body water jacket through a first bypass pipeline. A first bypass switch controlled by cooling liquid temperature to open and close is arranged between the first bypass pipeline and the air cylinder body water jacket. The air cylinder body is further connected with a water inlet of an air cylinder cover exhaust side water jacket through a second bypass pipeline. A water outlet of the air cylinder body water jacket is converged with the water outlet of the air cylinder cover exhaust side water jacket and then enters an engine through the water pump. The invention further discloses a corresponding vehicle. The engine cooling circulation system is simple in structure, and capable of controlling the flow and the circulation path of cooling liquid according to the operation state of the engine, enables the engine to be heated quickly and start and reduces the oil consumption and emission of the engine at the same time, can cool a turbine booster and an intercooler, and prolongs the service life of the turbine booster and the service life of the intercooler. The engine cooling circulation system is applied to various vehicles.

The invention relates to a multi-circulation engine cooling system. The multi-circulation engine cooling system comprises a high-temperature circulating cooling system and a low-temperature circulating cooling system, wherein the high-temperature circulating cooling system comprises a large circulation cooling fluid flow path, a small circulation cooling fluid flow path and a delayed circulation cooling fluid flow path. The multi-circulation engine cooling system has the beneficial effects that the heating requirements of all the parts after an engine stops can be better met and the problem of the flow direction of cooling circulation among different parts can be solved by adding an electronic control auxiliary water pump to the high-temperature circulating cooling system and realizing delayed circulation.

The invention relates to the technical field of hybrid electric vehicles, and discloses a hybrid electric vehicle thermal management system and a hybrid electric vehicle. The hybrid electric vehicle heat management system comprises a pump body, an engine and a fuel cell stack which are in pipeline connection, wherein the engine is in parallel connection the fuel cell stack and then is connected inseries with a water outlet of the pump body through a first three-way valve; and cooling liquid can flow into an engine and/or the fuel cell stack from the water outlet of the pump body after flowingthrough the first three-way valve and then flow back to the pump body. The hybrid electric vehicle thermal management system is capable of heating the fuel cell stack by utilizing the waste heat of the engine, thus realizing cold start and rapid temperature rise of the fuel cell stack; and in addition, the engine is supported to be rapidly warmed up by utilizing the waste heat of the fuel cell stack, thereby simplifying the system structure and reducing the cost.

The invention provides an engine heat management system consisting of controllable water pumps and a variable water resistance loop. The engine heat management system comprises an engine body, an engine ECU, an expansion tank, a main water pump and an auxiliary water pump, wherein the main water pump and the auxiliary water pump are connected in parallel; the main water pump is a switching type water pump and is controlled by an electric control clutch; the auxiliary water pump is an electronic water pump and is controlled by a driving motor; a parallel-connected outlet of the two water pumps is connected to the engine body and then is divided into a cylinder body loop and a cylinder cover loop; the cylinder body loop is connected in series with a first electronic thermostat and a first heat exchange component in sequence; the cylinder cover loop is connected in series with a second electronic thermostat and a second heat exchange component in sequence; the electric control clutch, the driving motor and the electronic thermostats are electrically connected with the engine ECU; the engine ECU is further electrically connected with a plurality of signal detection units. According to the technical scheme, flow adjustment and water resistance adjustment under different working conditions can be realized, so that heat management of an engine cooling system and the power consumption of the water pumps can be in the best fitness.

The invention discloses a whole vehicle heat management system for a plug-in hybrid electric vehicle. The whole vehicle heat management system comprises a high-temperature system, an inner-cooling low-temperature system and a battery low-temperature system. In the high-temperature system, a cylinder temperature adjuster, a radiator temperature adjuster and a PTC (positive temperature coefficient)heater are opened and closed, flow distribution of cooling liquid is controlled, so that the temperature rapidly rises when cold boot is implemented, an engine is rapidly heated, and oil consumption and omission are reduced. In an EV (electric vehicle) mode, control of tee is implemented. At the heating stage, a series circuit is formed between a battery and a motor controller, a series circuit isformed between a charging machine and a driving motor, the battery is heated by heat of the motor controller, the charging machine and the driving motor, optimal operating temperature of the batteryis kept, and energy cannot be wasted. At the cooling state, a circulation system is divided into two independent circulation systems, and optimal operating temperatures of the battery, the motor controller, the charging machine and the driving motor are ensured. According to the system, engine heating speed can be effectively improved, and oil consumption and omission are reduced.

The invention provides an engine cooling system. The engine cooling system comprises an engine cylinder body, a cylinder body water sleeve, a cylinder cover water sleeve, a temperature conditioning device, a heating and ventilating device, an engine oil cooler and a water storing kettle. According to the engine cooling system, a switch is controlled based on the selection of the temperature conditioner, and the flowing direction of cooling water can be switched based on the load of an engine, so that rapid machine heating and oil consumption reducing can be realized; the cylinder cover water sleeve and the cylinder body water sleeve are connected in series in the engine cold starting stage, and the cooling water can be heated twice in one circulation, so that the temperature increasing speed of the cooling water is maximized; in addition, the oil cooler performs heat exchanging, so that the temperature of engine oil can be rapidly increased, the frictional power of the engine is reduced, and the oil consumption and emission can be reduced; the cylinder cover water sleeve and the cylinder body water sleeve are connected in parallel in the high-temperature engine heating and high-temperature stages, the water flow rate of the engine is increased to the maximum, and the water flow rate of the cylinder body and the cylinder cover can be controlled, so that the cylinder body and thecylinder cover can reach the optimal temperature, and as a result, engine knocking can be reduced, and the oil consumption can be decreased.

The invention provides an engine cylinder head. The engine cylinder head comprises a water inlet, a water outlet, an exhaust port and a plurality of exhaust passages which are arranged corresponding to the plurality of combustion chambers and converged to the exhaust port, an exhaust valve is arranged in the exhaust passages, a cooling water jacket is formed between the water inlet and the water outlet, the cooling water jacket comprises a water jacket main body, a lower water jacket which is extracted from the side of each combustion chamber of the water jacket main body and an upper water jacket which passes through the exhaust valves of each combustion chambers and is connected with the water jacket main body, the lower water jacket and the upper water jacket are respectively covered onthe lower part and the upper part of each exhaust passage, wherein the lower water jacket and the upper water jacket are respectively provided with a hollow area on the positions of the correspondingexhaust passages. The engine cylinder head can not only utilize the heat in the exhaust gas to heat the cooling liquid so as to realize rapid warm-up, but also can avoid influence of the cooling water jacket on the heat dissipation of a radiator.

According to the present invention, cooling water from a cooling water pump is supplied from a cylinder block-side water jacket formed inside a cylinder block to a cylinder head-side water jacket formed inside a cylinder head, thereby cooling the cylinder block and the cylinder head. At least one cooling water passage that traverses the space between two adjacent cylinder bores is provided, an inlet end of the cooling water passage communicates with an exhaust side of the cylinder block-side water jacket, and an outlet end of the cooling water passage communicates with the cylinder head-side water jacket, and thus by distributing, to the cylinder head-side water jacket via the cooling water passage, the cooling water that flows through the exhaust side of the cylinder block-side water jacket, in addition to a cooling effect between the cylinder bores, the retention of cooling water on the exhaust side of the cylinder block-side water jacket, which reaches high temperatures, can be prevented and the cylinder block cooling effect increased more than if the inlet end of the cooling water passage is made to communicate with an intake side of the cylinder block-side water jacket.

The invention relates to an enzyme bioelectrochemical sensing chip and a preparation method thereof, belonging to the technical fields of analysis and detection. In the invention, the screen printingtechnique which is suitable for large-scale batch production is used for preparing a conducting layer which is attached to a substrate insulating material and has a micro-nano hole structure, and thesuperimposed molecular adsorption layer technique is used for trapping high molecular dielectrics and biological enzymes in the micro-nano hole to prepare a working electrode of a biological sensing chip for quantitatively delectating solute molecules (such as glucose, cholesterol, blood ketone or lactic acid) in liquid samples (such as blood), and the sensing chip is especially suitable for the quantitative detection by the continuous method. The high molecular dielectrics and the biological enzymes in the biological sensing chip of the invention are in contact with each other in a moleculardispersed state and are tightly close to conducting particles, thus the quick electron transfer can be achieved to be favorable for improving the detection sensitivity of the sensing chip; and the superimposed molecular adsorption layer technique is used for trapping the high molecular dielectrics and the biological enzymes, thus the semi-dialysis membrane has no need of being used singly, and theintercepting effect is better.

The invention providing a cooling system capable of improving the engine warming-up speed and lowering the oil consumption. The cooling system comprises an engine water pump, an engine cylinder body,a cylinder body water jacket, a cylinder cover water jacket, a thermostat, HVAC, a radiator, an engine oil cooler, a water storage pot and an electromagnetic valve. The cooling system can be controlled to start and stop through the choices of the electromagnetic valve and the thermostat, the flow directions of cooling water can be switched according to the load of an engine, the rapid engine warming-up process can be achieved, and the oil consumption can be lowered; in the engine cold-start stage, the cylinder cover water jacket and the cylinder body water jacket can be kept in a series connection structure, the cooling water can be heated twice during one cycle, the temperature rise of the cooling water can be accelerated to the greatest extent, the heat exchange process can be performedthrough the engine oil cooler, the rapid temperature rise of engine oil can be achieved, the friction work of the engine can be reduced, and the oil consumption and emissions can be lowered; and in the relatively-high-temperature engine warming-up stage and the high-temperature stage, the cylinder cover water jacket and the cylinder body water jacket can be kept in a series connection structure, the water flow rate of the engine can be increased to the greatest extent, the water flow rate of a cylinder body and that of a cylinder cover can be controlled respectively, both the optimum temperature of the cylinder body and that of the cylinder cover can be reached, the knocking phenomenon can be reduced, and the oil consumption can be lowered.

The invention discloses a new energy automobile water circulation heat dissipation device. The water circulation heat dissipation device comprises an engine, a water pump, a temperature controller anda cooling device, wherein one end of the water pump communicates with the engine, and the other end of the water pump communicates with the temperature controller and the cooling device; the other end of the temperature controller communicates with the engine and the cooling device; and the water circulation heat dissipation device further comprises circulating pipes, wherein the circulating pipes comprise the first circulating pipe, the second circulating pipe, the third circulating pipe, the fourth circulating pipe and the fifth circulating pipe, and the engine and the water pump communicate with each other through the first circulating pipe. The device is reasonable in design and simple to operate, the quality and the service life of cooling liquid are effectively improved, the use effect of the cooling liquid is guaranteed, and meanwhile, water cooling and air cooling are utilized to accelerate heat dissipation and cooling of a radiator, so that the radiator can be kept at a proper temperature, the cooling effect of the engine is guaranteed, and high practicability is achieved.

The invention relates to the technical field of fuel cell control, in particular to a multi-stack fuel cell system and a control method thereof and a vehicle. The vehicle comprises a fuel cell system and an electric element, the system comprises a controller, a series power supply circuit or a parallel power supply circuit, a cooling water pipeline and an air supply pipeline, the cooling water pipeline is connected with each electric pile through each cooling branch, the air supply pipeline is connected with each electric pile through each air supply branch, and each air supply branch is provided with an electromagnetic air valve; control switches for respectively controlling the electric piles are arranged in the series power supply circuit or the parallel power supply circuit; the output end of the controller is connected with each electromagnetic air valve and each control switch, the controller controls the control switches and the electromagnetic air valves to start part of the electric piles, and the heat generated by the controller can be supplied for the rapid temperature rise of other electric piles, so that the rapid temperature rise of the fuel cell system is achieved, and the problems that the performance of the cell is reduced and the use requirements of users cannot be met due to the fact that the temperature rise time of the fuel cell is long and the starting is slow in the low-temperature environment are solved.

The invention discloses an air inlet device for controlling exhaust gas temperature by waste gas drainage. The air inlet device comprises an intercooler (1), a turbocharger (2), a selective catalytic reduction (SCR) postprocessing device (3) and a drainage pipeline (6); a compressor outlet of the turbocharger (2) is communicated with an air inlet tube of an engine (2) through the intercooler (1); a turbine outlet of the turbocharger (2) is communicated with the SCR postprocessing device (3); an exhaust port of the SCR postprocessing device (3) is provided with a temperature sensor (5); one end of the drainage pipeline (6) is communicated with a turbine inlet of the turbocharger (2); the other end of the drainage pipeline (6) is communicated with the outlet of the intercooler (1); the drainage pipeline (6) is provided with a controlled valve (7); the temperature sensor (5) and the controlled valve (7) are respectively and electrically connected with an engine electronic control unit (ECU) (8). By the air inlet device, the conversion efficiency of a catalyst in the SCR postprocessing device (3) of the engine is improved.

The invention relates to the technical field of engines and discloses an engine cooling system. The engine cooling system is characterized in that a water outlet of a cylinder cover is connected with a first pipeline, the tail end of the first pipeline is communicated with a second pipeline and a third pipeline which are connected in parallel, an EGR (exhaust gas recirculation) cooler and a heater which are connected in series are arranged on the second pipeline, and the tail end of the third pipeline is communicated with a fourth pipeline; the tail ends of the second pipeline and the fourth pipeline are both connected with an inlet of a thermostat, and a water pump is connected between an outlet of the thermostat and a water inlet of a cylinder; the tail end of the third pipeline is further communicated with a fifth pipeline connected with the fourth pipeline in parallel, the tail end of the fifth pipeline is connected with an inlet of a radiator, and an outlet of the radiator is communicated with an inlet of the thermostat. The engine cooling system facilitates increase of waste heat energy utilization rate of an engine, facilitates rapid engine heating, and facilitates later rectification matching.

The invention provides an automobile passenger compartment heat exchange system, a control method and an automobile. The automobile passenger compartment heat exchange system comprises a shell, a radiator fin, a heater, a mobile device and a controller, wherein the shell comprises an air inlet and an air outlet; the radiator fin is arranged inside the shell and connected with a flowing pipeline; the heater is arranged inside the shell; the heater is arranged on the mobile device, and the distance between the heater and the radiator fin is changed through the mobile device; the controller is used for inputting a first control signal to the heater according to the first temperature of a medium entering the radiator fin via the flowing pipeline and the second temperature of the air outlet of the shell so that the heating temperature of the heater can be adjusted. According to the automobile passenger compartment heat exchange system, waste heat of a range extender is sufficiently utilized for heating the interior of an automobile passenger compartment, and consumption of electric energy is reduced; and during cold start in winter, cooling water in a radiator of the range extender can be heated reversely, and the warming-up time of the range extender is shortened.

The invention provides a controlling method for fast warm-up of a power battery. The controlling method for the fast warm-up of the power battery is used for realizing fast warm-up of the power battery of a 48V light hybrid power system. When it is detected that temperature of a 48V battery is lower than a preset temperature, a fast warm-up mode is started, after the fast warm-up mode is started,according to the temperature of 48V battery, the 48V battery can be charged and discharged selectively with a 12V battery and a motor for warm-up, so that fast warm-up of the 48V power battery is achieved.

The invention relates to a cooling system of an engine. The cooling system comprises a high-temperature circulation cooling system and a low-temperature circulation cooling system. The high-temperature circulation cooling system is provided with a large-circulation cooling liquid flow way, a small-circulation cooling liquid flow way and a delay-circulation cooling liquid flow way. Delay circulation is achieved by adding an electric control auxiliary water pump to the high-temperature circulation cooling system, the heating requirements of all parts after the engine stops can be better met, and the flowing direction problem of cooling circulation between different parts is solved.