35 results about "Engine cycle" patented technology

A method for reducing the engagement noise in a chain or belt drive for an internal combustion engine with a crankshaft having a drive sprocket (30) and at least one driven shaft with at least one first driven sprocket, comprising the following steps: determining (200) the external excitations in the chain drive to determine the engine cycle sequences in which stresses occur; converting (202) the engine cycle sequences in which stresses predominate into sprocket sequences; determining (204) sprocket sequences that are not predominant; determining (205) a number of sprockets with a non-predominant sequence for the chain or belt drive;Determining (206) a unique set of non-predominant sequences to be integrated into each of the number of non-predominant sequence sprockets intended for the chain or belt drive, such that no non-predominant sequence sprocket has the same engine cycle sequences; Integrating (207) a unique set of at least one non-predominant sequence into a radial variation pattern of a sprocket for each of the non-predominant sequence sprockets; and Installing (208) the non-predominant sequence sprockets into the chain or belt drive of the internal combustion engine.

Internal combustion engine method, comprising: operating an engine in a first mode, the first mode comprising: Confirming the cold start condition of the engine, determining that the boiling point of the fuel in the engine is lower than a threshold boiling point of the fuel, and In response to confirmation of the engine's cold-start condition and determination that the fuel boiling point in the engine is lower than a threshold fuel boiling point, starting the internal combustion engine via a starter motor at an initial cranking speed, while fuel is injected via fuel injectors for a number of combustion engine cycles since the first combustion engine cycle, and subsequently suspending operation of the starter motor and operating the engine via combustion; and Operating the engine in a second mode, the second mode comprising the following: In response to confirmation of the engine's cold-start condition and determination that the fuel boiling point in the engine is higher than a threshold fuel boiling point, the internal combustion engine is started at a second cranking speed while fuel is injected and the ignition spark is deactivated for the number of combustion engine cycles since the first combustion engine cycle, and subsequently the operation of the starter motor is suspended and the engine is operated via combustion, wherein the fuel boiling point is based on a fuel composition in the engine, wherein in the first mode the fuel injection involves initiating fuel supply at top dead center (TDC) of an intake stroke of a combustion engine cycle and terminating fuel supply at bottom dead center (BDC) of the intake stroke of the combustion engine cycle.and wherein, in the second mode, fuel injection includes initiating fuel supply at TDC of the intake stroke of the internal combustion engine cycle and terminating fuel supply at TDC of a compression stroke of the internal combustion engine cycle.

Fuel conversion unit and system for an internal combustion engine vehicle, and method for adjusting fuel distribution. The invention relates mainly to a fuel conversion unit (1) for an internal combustion engine vehicle, the vehicle comprising at least one first injector (4) and at least one second injector (6) controllable by a microcontroller (7) of the conversion unit (1), which microcontroller (7) is further provided to retrieve an injection signal, which conversion unit (1) further comprises a fuel sensor (8), characterized in that the microcontroller (7) is configured to determine the composition of the fuel, and for each engine cycle: • Determine an injection duration of the first injector (4) from the data of the injection signal;• Determine an injection duration for the second injector (6) based on the injection duration of the first injector (4) and the determined fuel composition, and • Control the second injector (6) according to the determined injection duration to deliver an additional quantity of fuel. Figure to be published with the abbreviation: Fig. 1;

A value-moving deviation method for acquiring cycle-stage combustion parameters of an engine based on multiple sensing signals includes: with prior values of combustion feature parameters under each piece of working condition information as a reference, reconstructing combustion feature parameter values based on signal features acquired by sensors of the engine, and calculating deviations between the combustion feature parameter values and the prior values and weights of the deviations; obtaining a fusion deviation of the combustion feature parameters as a transient fluctuation amount of the combustion feature parameters; correcting, based on the value-moving deviation method, the prior values according to the obtained transient fluctuation amount, so as to obtain actual values of the combustion feature parameters of a current cycle of the engine; and updating, according to a Weber equation, a combustion heat release rate curve to obtain each piece of transient combustion parameter information under a current working condition.

The application discloses a dry sump engine circulating pre-lubricating system and a control method thereof. The application utilizes an electric double pre-lubricating oil pump and original oil oil circuit of an engine pump, and before the engine starts, heated oil in an oil tank is delivered to each friction pair along the original oil oil circuit through the electric double pre-lubricating oil pump, each friction pair and its upstream lubricating pipeline are filled with the heated oil, and after being heated, the heated oil is circulated and returned to the oil tank, thus breaking the conventional thinking of low-temperature pre-lubrication of the dry sump engine, and each friction pair such as a shaft neck bearing bush is pre-lubricated and pre-heated before the engine starts at low temperature, the cooperation clearance is close to the state when the engine works, and movement constraint is more sufficient, and wear caused by insufficient movement constraint of the friction pair is effectively reduced. The oil circulation of the pre-lubricating system also enhances the convection of the oil in the oil tank, the oil is more uniformly heated, and the oil in the oil tank is better pumped.

A method of operating a hydrogen-powered internal combustion engine includes executing a torque estimation procedure in which an actual torque Tactual of an engine cycle is calculated by estimating a cylinder pressure based on an intake air pressure and a temperature, and using a lambda value [lambda] des determined from a map based on an engine operating state.

The application discloses a ship compound power system and a control method and device thereof, and relates to the technical field of ship power engineering. When the working power of a fuel engine is high, part of exhaust gas of the fuel engine provides heat for a reforming reaction subsystem, and part of the exhaust gas is used as raw material for a reforming reaction, and the reforming gas obtained by the reforming reaction subsystem is all recycled by the fuel engine. When the working power of the fuel engine is low, the fuel cell is controlled to be turned on to ensure power, and all the exhaust gas of the fuel engine is used to provide heat required by the system, and the hydrogen-rich reforming gas under the low working condition of the fuel engine is recycled to the fuel engine and the fuel cell for reuse. In the working process of the ship compound power system, a fuel cold energy processing subsystem exchanges heat between the fuel in a fuel storage tank and the reforming gas of the reforming reaction subsystem, improves the heat efficiency of the system, and liquefies and recovers carbon dioxide in the reforming gas.

The application discloses a heavy vehicle carbon emission and oil consumption partition reconstruction evaluation method suitable for remote monitoring and actual road test, which is characterized in that: remote monitoring data or actual road test data of a target vehicle model are taken as vehicle real-time data input, vehicle real-time data per second and engine speed and net output torque of the drum data are partitioned and data correlated, average oil consumption level of the target vehicle model is obtained through data clustering of the partitioned data, reconstruction data of carbon emission or oil consumption level of each partition is obtained based on drum data prediction and average oil consumption level of the target vehicle model, different partition reconstruction data are spliced according to engine cycle process of the target vehicle model during oil consumption authentication on a chassis dynamometer, carbon emission or oil consumption level of the target vehicle model during use is obtained, and conformity or compliance of the carbon emission or oil consumption level is compared with an authentication result. The application improves the use efficiency of remote monitoring and actual road test data, and is simple in calculation, high in accuracy and strong in adaptability.

A system and process for operating an internal combustion engine includes a fuel injector connected to a fuel rail, which injects fuel during an engine cycle. A high-pressure pump is connected to the fuel rail and includes pump elements that pressurize the fuel, as well as discrete-flow inlet metering valves that control the fuel flow from the pump elements. The fuel flow from the high-pressure pump's pump elements to the fuel rail is interrupted by the discrete-flow inlet metering valves during a portion of the engine cycle to obtain fuel pressure readings from the fuel rail during fuel injection.

The present application belongs to the technical field of engine starting control, and particularly relates to an engine starting control method and system for starting an engine with load. The method comprises receiving an engine starting signal, detecting whether the current load rate of the engine is greater than a load rate demarcation value, and if so, determining that the engine is started with load; calculating the initial cycle fuel injection amount of the engine based on the reference cycle fuel injection amount and in combination with the set initial correction coefficient; detecting the engine speed when the engine injects fuel according to the initial cycle fuel injection amount, and if the engine speed can reach the target speed, injecting fuel according to the initial cycle fuel injection amount; otherwise, increasing the initial correction coefficient to obtain the correction coefficient of the next time step, and recalculating the cycle fuel injection amount of the next time step until the engine reaches the target speed and the starting with load is completed. The present application identifies the engine starting demand with load through a preset control logic, controls the cycle fuel injection amount of the engine, realizes the starting with load, and solves the problem of large torque for the starting demand with load.

Provided is an operation method of a heat engine device using a single ion configured to greatly improve the efficiency of a heat engine by performing work in a different way than heat engine apparatuses to which classical thermodynamics applies. With the single ion heat engine device, a heat engine cycle in accordance with an auto engine cycle can be established on a micro-scale. Accordingly, the heat engine device using single ion has the effect of being able to be utilized as a substantially mesoscopic or nano-scale heat engine. This utilization is based on concepts, such as temperature, entropy, and pressure, that vary with features of a micro-miniaturized heat engine and types of thermal reservoirs and on interpretation of a change in engine efficiency.

The invention provides an engine cycle test data processing method, device and equipment and a storage medium, and belongs to the technical field of data processing, and the method comprises the steps: obtaining a reference data sequence and a to-be-processed data sequence collected by an engine in the same cycle test in different periods; calculating a first integral characteristic value of the reference data sequence in a preset integral window; second integral characteristic values of the to-be-processed data sequence in a plurality of candidate integral windows are calculated, and the duration of the candidate integral windows is equal to the duration of the preset integral window; calculating the difference degree between each second integral characteristic value and the first integral characteristic value; and aligning the to-be-processed data sequence under the candidate integral window corresponding to the minimum difference degree with the reference data sequence under the preset integral window, thereby improving the positioning alignment precision and efficiency of the data sequence under the optimal candidate integral window, and further improving the efficiency and real-time performance of engine cycle test data processing.

A heat exchanger (100) for an LPI (liquefied petroleum gas injection) vehicle, adapted to cool a high-temperature LPG (liquefied petroleum gas or autogas) fuel that is recirculated from an engine (3) in the LPI vehicle which uses the LPG fuel, wherein the heat exchanger (100) has: a pipe unit (110, 220) which is mounted on a refrigerant line (7) which connects a compressor (10) to an evaporator (40) of an air conditioning system, and is adapted to allow a refrigerant and the high-temperature LPG fuel which is returned from the engine (3) to flow, wherein the refrigerant flows in a central section of the pipe unit (110, 220) and the high-temperature LPG fuel flows in an outer section which is outside the central section of the pipe unit (110, 220), so that the high-temperature LPG fuel can exchange heat with the refrigerant; a first connecting element (120) which is mounted at one end of the pipe unit (110, 220) to connect the pipe unit (110, 220) to the refrigerant line (7), where the refrigerant line (7) is connected to the compressor (10); and a second connecting element (130) which is mounted at the other end of the pipe unit (110, 220) to connect the pipe unit (110, 220) to the refrigerant line (7) where the refrigerant line (7) is connected to the evaporator (40), wherein the pipe unit (110, 220) has: a refrigerant pipe (111, 211) which provides a refrigerant channel (112) in which the low-temperature-and-low-pressure gaseous refrigerant flows, which is supplied from the evaporator (40) through the refrigerant line (7), wherein the refrigerant pipe (111, 211) is arranged on the central section of the pipe unit (110, 220); and a fuel pipe (113, 213) which provides a fuel channel (114) formed between the refrigerant pipe (111, 211) and the fuel pipe (113, 213) and in which the LPG fuel flows, wherein the fuel pipe (113, 213) surrounds the refrigerant pipe (111, 211), characterized by the fact that the first connecting element (120) has an inlet opening (126) into which the LPG fuel flows; the second connecting element (130) has an outlet opening (136) from which the LPG fuel flowing through the pipe unit (110, 220) flows out; The pipe unit (110, 220) further comprises a bypass pipe (115, 215) which provides a bypass channel (116) for diverting the LPG fuel, wherein the bypass pipe (115, 215) surrounds the fuel pipe (113, 213) and the bypass channel (116) is formed between the fuel pipe (113, 213) and the bypass pipe (115, 215).

The invention discloses a method, a device, equipment and a medium for determining the erosion rate of an engine material, and relates to the technical field of engine analysis, the method for determining the erosion rate of the engine material comprises the following steps: determining the radiance of target metal according to a characteristic spectral line of the target metal in an engine plume spectrum; wherein the target metal is a composition of the engine; in combination with the radiation brightness of the target metal and the engine plume data, carrying out atomic number density inversion on the target metal in the engine plume, and determining the atomic number density of the target metal in the engine plume; in combination with the atomic number density and the engine plume data, combustion chemical equilibrium calculation is conducted on the engine plume, and the total concentration of the target metal in the engine plume is determined; and determining the erosion rate of the engine material according to the total concentration of the target metal in the engine plume. The method can quantify the erosion rate of the structural material of the engine during the cycle operation of the engine.

A system and method of operating an internal combustion engine system includes a fuel injector in fluid communication with a fuel rail operable to inject fuel during an engine cycle. A high pressure pump is connected to the fuel rail and includes a pumping element that pressurizes fuel and a discrete quantity inlet metering valve that controls fuel flow from the pumping element. Fuel flow from the pumping element of the high pressure pump to the fuel rail is terminated by the discrete quantity inlet metering valve during a portion of the engine cycle to obtain a fuel pressure measurement of the fuel rail at the time of fuel injection.

The objective is to provide an engine cooling system that can appropriately control the flow rate of coolant passing through the engine water pump. [Solution] An engine cooling system comprising: a cooling circuit having an engine water pump for circulating coolant to the engine and a heater core water pump for circulating coolant to the heater core, a circulation path for circulating coolant between the engine and the heater core, and an on / off valve provided in the circulation path between the engine and the heater core with an adjustable opening ratio, and a control device for controlling the engine water pump.

A method of operating a hydrogen internal combustion engine having at least one cylinder with an intake valve and a direct injector for injecting hydrogen fuel directly into the cylinder. The method comprises performing a plurality of hydrogen fuel injections before an ignition during an engine cycle, wherein a first injection, with a first injection amount m1 and a first injection time t1 as first injection parameters, is performed before the intake valve is closed and a second injection, with a second injection amount m2 and a second injection time t2 as second injection parameters, is performed by the direct injector after the intake valve has been closed and before an ignition is performed. The method further comprises performing an adjustment process.

Carnot battery with simplified charging cycle by an ejector ensuring cold production. The invention relates to a Carnot battery comprising a drive cycle for converting thermal energy into electricity and a simplified ejector-equipped refrigeration cycle (SERS) comprising a working fluid circulation refrigeration circuit comprising three branches arranged in parallel: a drive branch and a refrigeration branch, and a mixing branch on which is arranged an ejector for ensuring the mixing of the working fluid from the drive branch and the working fluid from the refrigeration branch, and the battery comprising a thermal energy storage module comprising a fluid for storing cold thermal energy and forming the source to be cooled for the refrigeration branch.The storage module is thermally connected to the condenser of the engine cycle, ensuring the transfer of cold thermal energy from the fluid stored in the energy storage module to the engine cycle. Figure for the abbreviation: Fig. 1,

A system includes a condensate injection system configured to fluidly couple to a combustion chamber of a reciprocating engine and an exhaust gas recirculation (EGR) system of the reciprocating engine. The condensate injection system includes a condensate tank configured to store condensate collected from the EGR system. The condensate injection system also includes a pump fluidly coupled to the condensate tank. The condensate injection system also includes an injector fluidly coupled to the pump. The injector is configured to inject condensate into the combustion chamber during a first portion of an engine cycle of the reciprocating engine. The first portion of the engine cycle includes at least part of a power stroke and / or an exhaust stroke of the engine cycle.

Method for operating a two-stroke engine, wherein the two-stroke engine (1) has a cylinder (2) in which a combustion chamber (3) is formed, which is bounded by a piston (5), wherein the piston (5) drives a crankshaft (7) rotatably mounted in a crankcase (4), and wherein the crankcase (4) is connected to the combustion chamber (3) in at least one position of the piston (5) via at least one transfer port (17), with an inlet (11) into the crankcase (4) and with an outlet (19) from the combustion chamber (3), with a device for supplying fuel, with a control (20), and with a means for sensing the crankcase pressure (p). KGH ), where the crankcase pressure (p KGH ) is determined during each engine cycle, characterized in that the fluctuation of the determined crankcase pressure (p KGH ) determined and used to determine whether combustion takes place in each engine cycle, with a limit value (Δp) grenz) is compared, whereby the fluctuation of the crankcase pressure (p KGH ) as the difference in crankcase pressure (p KGH ) to a mean value (p M ) of the crankcase pressure (p KGH ) is determined.

The invention discloses a dual outboard engine exhaust and smoke exhaust pipe cooling system, which belongs to the technical field of ship power devices, and comprises an exhaust and smoke exhaust pipe assembly, a cooling water flow channel assembly and a connecting assembly, the exhaust and smoke exhaust pipe assembly comprises an exhaust and smoke exhaust channel communicated with an engine exhaust system, a connecting part fixedly connected with an engine is arranged on the outer side of the exhaust and smoke exhaust pipe assembly, and the cooling water flow channel assembly is arranged on the pipe wall and the interior of the exhaust and smoke exhaust pipe assembly and used for achieving double cooling of the exhaust and smoke exhaust pipe assembly. The connecting assembly is used for detachably connecting the cooling water flow channel assembly with the engine circulating water system and the exhaust and smoke exhaust pipe assembly. According to the invention, a water jacket type cooling and spray type cooling combined mode is adopted, so that the temperature of flue gas can be quickly reduced to a lower level.

A system includes an engine including a plurality of combustion cylinders; a fuel filling system including a fuel rail in fluid communication with a plurality of fuel injectors and a high pressure fuel pump in fluid communication with the fuel rail, each of the plurality of fuel injectors configured to provide fuel to a respective one of the plurality of combustion cylinders; and an electronic control system in operable communication with the fuel filling system. The electronic control system is configured to: receive a pressure sensor output indicative of a fuel pressure of the fuel rail over a plurality of engine cycles; processing the pressure sensor output to determine a fueling amount value indicative of a fuel amount of an injection event of a fuel injector of the plurality of fuel injectors; and in response to the fueling amount value, performing at least one of: adjusting an injector control parameter to reduce a difference between a commanded fueling amount and an actual fueling amount; displaying an operator-perceptible output indicative of a condition of the system; and diagnosing a condition of the system.

The invention relates to the technical field of engine tests, and discloses a method, a device and a system for testing WLTC cycle transient output torque of an engine. Obtaining a basic friction torque characteristic map, a universal characteristic temperature characteristic map and a coupling friction torque characteristic map at different rotating speeds and temperatures of the engine; under the WLTC transient working condition, the rotating speed, the torque and the engine oil temperature of an engine and cylinder pressure data of all cylinders are obtained, and the inertia moment at each sampling moment is calculated; on the basis of the rotating speed, the torque and the engine oil temperature collected under the WLTC transient working condition, interpolation is conducted from the basic friction torque characteristic atlas, the universal characteristic temperature characteristic atlas and the coupling friction torque characteristic atlas through an interpolation method, and first friction torque, second friction torque and third friction torque are obtained respectively; and based on the cylinder pressure data of each cylinder, the first friction torque, the second friction torque, the third friction torque and the inertia moment, the output torque of the WLTC transient working condition of the engine is calculated. According to the method, the output torque can be obtained more accurately.

The utility model provides a vehicle heat management system which comprises a heat pump system, the heat pump system comprises a heat pump circulation pipeline, a compressor, a four-way valve, an in-cabin heat exchanger and an out-cabin heat exchanger, and the compressor, the four-way valve, the in-cabin heat exchanger and the out-cabin heat exchanger are respectively arranged on the heat pump circulation pipeline. The in-cabin heat exchanger is used for refrigerating or heating the interior of the vehicle; the system further comprises a power battery pack system, the power battery pack system comprises a battery and a battery cold plate located on the surface of the battery, and the heat pump system heats or cools the battery through the battery cold plate. The automobile further comprises an engine heat dissipation system, the engine heat dissipation system comprises an engine circulation pipeline, an engine, a first water pump and a warm air core body, the engine, the first water pump and the warm air core body are all arranged on the engine circulation pipeline, and the warm air core body is used for heating the interior of the automobile. By means of the mode, the problem that in the prior art, a heat pump system structure is too complex can be solved.

Control unit (11) for controlling the start of an internal combustion engine having at least one cylinder (100), at least one main combustion chamber (1), at least one intake port (4), at least one main fuel injector (8, 9) and at least one ignition device (10) configured to ignite an air / fuel mixture inside the main combustion chamber (1), wherein the ignition device (10) comprises a spark plug (10a), a pre-chamber injector nozzle (10b) and a pre-chamber (10c) which is connected to the main combustion chamber (1) via at least one opening (10e) in a pre-chamber wall (10d), wherein the control unit (11) is configured to control the ignition device (10) to perform a pre-chamber heating operation by injecting a predetermined amount of fuel into the pre-chamber (10c) and igniting an air / fuel mixture therein, while the main fuel injector (8, 9) is deactivated during at least one first engine cycle following an engine start request.

The invention discloses a use test method, device, equipment and medium for an engine sealing ring, and the method comprises the steps: carrying out the transient heat conduction analysis of a sealing structure, obtaining a transient temperature field of the sealing structure under a circulation working condition, carrying out the rebound analysis of the sealing ring, a flange and a fastener of the sealing structure through combining with the transient temperature field, and obtaining a test result. Axial deformation data generated in the using process of the sealing ring is determined, and on the basis of the sealing ring and the rigid surface of the sealing structure, the ratchet wheel damage behavior of the sealing ring under the cyclic working condition is described by adopting a nonlinear follow-up hardening model and a saturated isotropic hardening model in combination with the axial deformation data and a transient temperature field. The equivalent plastic strain rate of the sealing ring in each cycle period is obtained, the maximum cycle number of the sealing ring fractured due to ratchet damage accumulation under the engine cycle working condition is determined through the equivalent plastic strain rate, and analysis of the ratchet strain accumulation process of the sealing ring under the engine cycle working condition is achieved.

The invention provides an in-cylinder direct injection engine oil rail pressure control method. The method comprises the steps that the current oil rail pressure of an engine is monitored in real time; in one engine cycle, the opening time and the closing time of the oil injector corresponding to each air cylinder are determined; the opening advance angle of the high-pressure oil pump is obtained based on the current oil rail pressure, wherein the opening advance angle is the advance of the opening moment of the high-pressure oil pump relative to the closing moment of the oil injector; and controlling the high-pressure oil pump to execute opening operation based on the opening advance angle after the corresponding oil injector is opened and before the oil injector is closed. Therefore, the fluctuation amplitude of the pressure is weakened fundamentally, and the engine is kept in the optimal working state all the time.

A system and process of operating an internal combustion engine system includes a fuel injector in fluid communication with a fuel rail operable to inject fuel during an engine cycle. A high pressure pump is connected to the fuel rail and includes pumping elements that pressurize the fuel and discrete quantity inlet metering valves that control the fuel flow from the pumping elements. Fuel flow from the pumping elements of the high pressure pump to the fuel rail is terminated by the discrete quantity inlet metering valves during a portion of the engine cycle in order to obtain fuel pressure measurements of the fuel rail while fuel is being injected.

The utility model relates to an LNG pressure reducing regulator for an automobile. The LNG pressure reducing regulator comprises a valve body, a gas path system and a water path system, the gas path system is used for conducting pressure reduction and flow control on natural gas, the input end of the gas path system is connected with an external gas cylinder and provided with a switching valve used for controlling on-off of a gas path and a pressure sensor used for detecting the gas pressure in the gas cylinder, and the rear end of the gas path system is provided with a proportional valve used for controlling the flow of the natural gas. The water path system is used for heating the pressure reduction regulator assembly, the input end and the output end of the water path system are both connected with an engine circulating cooling liquid system, so that engine circulating cooling liquid circularly flows in the water path system, and a temperature sensor used for detecting the temperature of the assembly is installed on a pipeline of the water path system. Through cooperative work of all the components, the LNG pressure reducing device is efficient, safe and reliable, and the requirement for precise control over the natural gas flow of an automobile under different working conditions is met.

The utility model provides a kind of integrated heat management system of hybrid car with six-way valve in hybrid car technical field, including indoor refrigeration cycle pipeline, battery motor cooling cycle pipeline, heat pump cycle pipeline, battery cycle pipeline, warm air circulation pipeline, motor electric control cycle pipeline, heat dissipation cycle pipeline, engine cycle pipeline, indoor warm air core, heat exchanger, three-way valve, six-way valve, three-way valve is arranged in motor electric control cycle pipeline, heat dissipation cycle pipeline, six-way valve is arranged between battery cycle pipeline, warm air circulation pipeline, motor electric control cycle pipeline, heat exchanger is arranged between heat pump cycle pipeline, motor electric control cycle pipeline, heat exchanger is arranged between battery motor cooling cycle pipeline, battery cycle pipeline, heat exchanger is arranged between indoor refrigeration cycle pipeline, warm air circulation pipeline.The utility model can combine engine, battery, motor, air conditioner, warm air system together, carry out heat coupling utilization.The utility model not only simple structure, and whole system energy efficiency is higher, can be popularized and applied on hybrid car.