3337 results about "Automobile air conditioning" patented technology

An economical solar generator system is provided wherein the solar energy collector is constructed from a plurality of heat exchangers of the kind used as evaporators in automobile air conditioners. The solar generator system includes a plurality of said heat exchangers connected to receive incoming liquefied refrigerant under pressure. The number of such heat exchangers is sufficient to collect solar energy sufficient to induce a phase change from a liquid to a gas state. The solar generator system also includes an air motor and an electric generator. The air motor is coupled to the outflow heated gas from the plurality of heat exchangers. The air motor is rotated by the heated gas. The electrical generator is coupled to the air motor so that rotation of said air motor causes rotation of said generator.

In a compressor control system for a vehicle air conditioner, a hybrid ECU of the vehicle controls a rotation speed of a compressor electric motor. In this case, an output circuit, which outputs a driving signal for driving the compressor electric motor, only needs to be newly provided in the hybrid ECU when a hybrid vehicle or an electric vehicle is manufactured based on an engine vehicle. Therefore, a high cost is not caused even when the output circuit is provided in the hybrid ECU which should be newly designed and manufactured. In addition, because the output circuit does not need to be provided in an air-conditioning ECU which is an existing component of the engine vehicle, the air-conditioning ECU in the engine vehicle can be directly applied to that in the hybrid vehicle without a substantial hardware change. Therefore, design cost can be reduced.

A refrigerating system, using CO2 as a refrigerant, for an air conditioner for an automobile. A pressure at the outlet of the heat emitter 2 is controlled to a target value in accordance with the temperature of the refrigerant at the outlet of the heat emitter for obtaining an operation of the refrigerating system along the optimum control line eta max. A pressure reducer 4 and a cooler 5 are provided on a branched passageway 28 branched from a refrigerant recirculating passageway 27 for injection. The cooler 5 is for obtaining a heat exchange between a flow of the refrigerant on the branched passageway 28 after being cooled by the pressure reducer and a flow of the refrigerant on the main passageway 27, thereby cooling the refrigerant directed to the evaporator. In a second aspect of the invention, a means is provided for increasing a target value of the pressure at the pressure reducer when a thermal load of the refrigerating system is high. In a third aspect, a series of pressure reducers are arranged on the main recirculating passageway. The second stage pressure reducer is controlled so as to obtain a desired value of degree of super heating at the inlet of the compressor.

Air conditioning system controls are optimized for an air conditioning system having a compressor in IC engine vehicles and in hybrid or fuel cell vehicles having electric drive motors by first determining the operating temperature of at least one of the following vehicle components: engine coolant and transmission oil for all types of vehicles, and for hybrid or fuel cell vehicles also determining the operating temperature of inverter coolant and the electric drive motors. At least one operating temperature is then compared to lower and upper temperature limits. If the operating temperature is outside of the temperature limits air conditioner heat load is reduced by at least one of the following steps: increasing cabin air recirculation, reducing cabin blower speed and reducing air conditioner compressor capacity. Subsequent to reducing air conditioner heat load, selected operating temperature or temperatures are monitored to determine if the operating temperature exceeds the upper temperature limit or limits. If the operating temperature or temperatures exceed the upper limit or limits the compressor is shut off.

The regenerative braking method and system for an electric vehicle in which regeneration current is calculated and controlled using control of an air conditioning system to consume a portion or all of the surplus regeneration power, thereby enhanding braking performance and feel.

An automotive air conditioner comprises: an air-conditioning unit for supplying conditioned air into a passenger compartment of a vehicle; an information acquiring unit for acquiring state information indicating a state relating to the vehicle; an air conditioning state estimating unit for estimating an air conditioning state inside the passenger compartment that would be achieved after a predetermined time if a setting operation for improving fuel economy were performed based on the state information; a recommended operation determining unit for recommending the setting operation if it is determined that the estimated air conditioning state satisfies a comfort condition that would make the passenger compartment comfortable for an occupant; and an air-conditioning control unit for controlling the air-conditioning unit in accordance with the recommended setting operation.

The invention discloses an electric car air conditioning system with an air source heat pump. The electric car air conditioning system has a refrigerating mode, a conventional heating mode, a low-temperature heating mode and a defrosting mode in an electric car, and a main loop of the air conditioning system comprises a compressor, an indoor condenser arranged on an outlet pipeline of the compressor, an indoor evaporator arranged on an air return pipeline of the compressor, an outdoor heat exchanger arranged on a pipeline between the indoor condenser and the indoor evaporator, a first valve arranged between the indoor condenser and the outdoor heat exchanger, a second three-way valve arranged between the outdoor heat exchanger and the indoor evaporator, and a first throttling device arranged between the second three-way valve and an inlet of the indoor evaporator. A by path of the second three-way valve is connected with an inlet of the compressor. In the low-temperature heating mode of the air conditioning system, a middle air supplementing system operates, and the electric car air conditioning system has the advantages of being reliable in operation, high in heating capacity, high in heating efficiency and the like.

The invention discloses an air conditioning system for an automobile. The air conditioning system comprises a compressor, a vapor and liquid separator, a third heat exchanger, a first air conditioning case, a second air conditioning case and throttling elements. When the air conditioning system is in a refrigerating mode, refrigerants flow out of a second heat exchanger and reach the third heat exchanger, heat is outwardly dissipated at the third heat exchanger, and then the refrigerants are divided into two branch flow channels; the refrigerants of the first branch flow channel flow to a first heat exchanger of the first air conditioning case to provide cold flows to a compartment; the refrigerants of the second branch flow channel flow to a battery heat exchanger of the second air conditioning case to provide cold flows to a battery. The air conditioning system for the automobile has the advantages that only the refrigerants circulate in the air conditioning system, heating and circulation of heating circulating working media are omitted, and accordingly the system is simple in manufacture.

An automobile air-conditioning system comprises a compressor, a vapor liquid separator, a first heat exchanger, a second heat exchanger, a third heat exchanger and an intermediate heat exchanger. The third heat exchanger selectively exchanges heat with an external environment, the intermediate heat exchanger is provided with a first portion and a second portion which can exchange heat, and a throttling element is arranged in a pipeline passing through the second portion of the intermediate heat exchanger. When the automobile air-conditioning system is in at least one of a refrigerating mode and a heating mode, low-temperature and low-pressure refrigerants before returning to the compressor pass through the first portion of the intermediate heat exchanger, refrigerants before throttling pass through the second portion of the intermediate heat exchanger, the low-temperature and low-pressure refrigerants before returning to the compressor exchange heat with the refrigerants before throttling in the intermediate heat exchanger, the temperature of the refrigerants before throttling is further reduced, and the temperature of the low-temperature and low-pressure refrigerants before returning to the compressor is increased, so that the operating efficiency of a heat pump system is improved.

An adsorber unit has an outer shell, a plurality of internal tubes extending through the shell for carrying heat transfer fluid, each tube having outwardly projecting fins along its entire length, and a solid adsorbent material in the shell surrounding the tubes such that the fins project into the adsorbent material, the fins being of a material (e.g., metal) of higher thermal conductivity than the adsorbent material. Metal wool loosely packed inside the tubes, or internal radial fins swaged into the tubes, increase internal surface area thereby enhancing convective heat transfer. Metal wool loosely packed between the external fins, or fine wire metal coils lightly squeezed between the external fins, further increase external surface area of the heat exchanger in contact with the adsorbent thereby enhancing contact heat transfer. Performance is enhanced because the external fins and wool or wire coils transport heat more efficiently to all regions of the adsorbent, and permit less non-adsorbent heat exchanger material (e.g., metal) to be used for a given amount of adsorbent. Two or more such units are used in an adsorption heat pump. This design utilizes existing components (e.g., shell-&-tube heat exchanger, internally and externally finned tubing, and metal wool or wire coils) in a novel manner heretofore untried. In one exemplary embodiment, automobile air conditioning, exhaust heat is used to power such an air conditioner. The significant additional power used by the mechanical compressor of an automobile (12%-17% during commuting for subcompact to midsize cars) can be nearly eliminated by powering the air conditioner with otherwise wasted exhaust heat. The adsorbent is heated and cooled by light oil (called Heat Transfer Fluid, HTF) which in turn is heated and cooled by exhaust and fresh air. Such indirect heating and cooling achieves the required efficiency, and allows using phase change material (e.g., wax) to store and therefore fully utilize exhaust heat. A refrigerant reservoir is included which provides immediate cooling after start-up of a cold engine, while the exhaust system and heat pump are still heating up in order to start pumping refrigerant. Eliminating the mechanical compressor increases fuel mileage by 14-18% for midsize, compact, MS and subcompact cars, or 4.6-6.0% annually, given a four-month cooling season.

The invention relates to the technical field of automobile air conditioners, in particular to a method for recycling exhaust air heat of an electric automobile and a heat pump air-conditioning system adopting the method. The method for recycling the exhaust air heat of the electric automobile and the heat pump air-conditioning system adopting the method mainly solve the technical problem that in the prior art, due to the fact that a fresh air load is too high in the using process of an air conditioning system of an electric automobile, power consumption of devices is large. By the adoption of the method for recycling the exhaust air heat of the electric automobile, a great amount of heat in exhaust air is recycled, a fresh air load can be lowered to the maximum extent, and therefore compared with the prior art, the power consumption of devices is further reduced. The heat pump air-conditioning system can be switched between a refrigeration mode, a conventional heating mode and a low-temperature heating mode. The heat pump air-conditioning system has the advantages of being high in system efficiency, high in heating performance, low in thermal requirement, high in shock resistance performance, high in system safety and the like under a low-temperature environment.

The invention discloses an air conditioning system of an automobile. The air conditioning system comprises a refrigerant circulating system and a coolant circulating system. The refrigerant circulating system can provide a cold source for the coolant circulating system and comprises a compressor, a vapor-liquid separator, an interior condenser, an exterior heat exchanger and an interior evaporator, the vapor-liquid separator is arranged in front of an air inlet of the compressor, and the interior condenser is connected with an outlet of the compressor; a second throttling element, a bypass flow path and an intermediate heat exchanger are arranged between the interior condenser and the exterior heat exchanger, and at least two throttling elements are respectively arranged in pipelines which run from the exterior heat exchanger to the interior evaporator and the intermediate heat exchanger respectively, so that refrigerants which are condensed by the exterior heat exchanger can be throttled by the throttling elements and then can flow to the interior evaporator and the intermediate heat exchanger when the refrigerant circulating system is in a refrigerating mode. The air conditioning system has the advantages that batteries can be cooled, heat can be absorbed from low-temperature heat sources in a heat pump manner and is used for heating, accordingly, the efficiency is improved, and power consumption is reduced.

A parallel flow evaporator used with an automobile air-conditioning system comprises two groups of front and rear heat-exchange units in parallel arrangement and with the same structures. The two groups of heat-exchange units have the similar structure to the heat-exchange unit in the exiting parallel flow evaporator, so that the known techniques for assembling porous flat tubes and upper and lower collector tubes of the parallel flow evaporator can be used, and the upper collector tubes of the two groups of heat-exchange units are communicated with each other by flow-guide tubes or a gas/liquid separator. The invention has the advantages that the invention solves the problem that prior art has difficulties in assembling the porous flat tubes and the upper and lower collector tubes of the parallel flow evaporator and greatly increases the production efficiency; the gas/liquid separator for communicating the upper collector tubes of the two groups of front and rear heat-exchange units can discharge the gas-phase coolant produced inside the flat tubes of the rear heat-exchange units in time by the discharge chamber of the front heat-exchange units, thereby realizing the complete utilization of heat-exchange area of the flat tubes of the rear heat-exchange units and improving the heat-exchange capability of the parallel flow evaporator.

The invention relates to a smartphone control system for an automobile air conditioner and a control method thereof. The control system comprises a smartphone, a vehicle-mounted control system module, a keyless starting system and an air conditioner control module, wherein the smartphone is communicated with the vehicle-mounted control system module, and can transmit signals to the vehicle-mounted control system module; the vehicle-mounted control system module is communicated to the air conditioner control module, and can transmit signals to the air conditioner control module; the vehicle-mounted control system module is communicated to the keyless starting system, and can transmit signals to the keyless starting system; the air conditioner control module is connected to an overall air conditioning system in a controlling way. The start of an automobile is remotely controlled through the smartphone, and the start and parameter setting of the automobile are remotely controlled, so that the start of the automobile air conditioner can be remotely controlled in advance, and a comfortable environment suitable for human body is created in the automobile when a customer arrives at the automobile.

An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes spaced apart from one another, and a plurality of flat cool storage material containers each of which contains a cool storage material and is disposed on one side of the corresponding refrigerant flow tube, and is brazed to the corresponding refrigerant flow tube. The cool storage material container includes a container body brazed to the corresponding refrigerant flow tube, and an internal-volume-increasing portion which extends downstream from the container body, which projects downstream from the refrigerant flow tube, and which is greater in dimension in a thickness direction than the container body. An inner fin extending from the container body to the internal-volume-increasing portion is disposed in the cool storage material container. This evaporator is suitable for a refrigeration cycle which constitutes a car air conditioner.

The present invention provides an automatic test method and apparatus for vehicle air conditioner compressor electromagnetic clutch dynamic torsional moment, comprising a mainly supporting component (2), a torque revolution speed transducer (3), an electric eddy current dynamometer (4) and an electrical control system, wherein the electromagnetic clutch (1) is installed on the left end of the supporting component to form a cantilever structure, and is driven to rotate through a belt pulley of the electromagnetic clutch driven by a frequency conversion motor; the right end of the supporting component is linked with the torque revolution speed transducer and the electric eddy current dynamometer separately by a coupling, the torque revolution speed transducer and the electric eddy current dynamometer are both installed on each seat to ensure the axiality to be consistent with the supporting component main shaft. The automatic test method and apparatus can simulate air conditioner electromagnetic clutch actual use condition factually, test dynamic parameter variation regularity with the existing of revolution speed spectrum and torque loading spectrum, observe and research dynamic procedure in full, and provide science foundation for evaluating performance, lifetime and reliability thereof.

A module for a bus rooftop air conditioner is self contained in that it has all the necessary components including a compressor, if desired, which when supplied with electrical power, can provide conditioned air to the passenger compartment of a bus. In addition, an electrically powered heater is provided in the air flowstream such that heated air can also be supplied to the passenger compartment when desired. Multiple units provide for incremental capacity requirements to be met as well as limp home capabilities.

The invention discloses a car air conditioning system electronic expansion valve control method. Pre-adjustment value s0 of the valve opening of the electronic expansion valve is determined by the rotating speed of a compressor. Actual degree of superheat Tsh is calculated according to temperature and pressure of refrigerant of an outlet of an evaporator or an inlet of the compressor. The actual degree of superheat is compared with a presupposed interval of threshold values of the degree of superheat to obtain delta s. Control signals s of the adjustment valve opening are output to a controlling end of the electronic expansion valve after the pre-adjustment value of the valve opening is accumulated with valve opening adjustment increment. The car air conditioning system electronic expansion valve control method ensures that the valve opening of the electronic expansion valve arrives a condition according to default of the range of the threshold values of the degree of superheat to reduce adjustment ranges in a stage of adjustment of the degree of superheat, avoids frequent motions of the electronic expansion valve, prolongs service life of the electronic expansion valve, and further reduces system low-pressure pressure fluctuation, reduces energy consumption of the system and ensures normal and high-efficient operation of the system.

The invention discloses an automotive air-conditioning filter, relating to the technical field of manufacturing of automotive parts. The automotive air-conditioning filter comprises a shell, wherein an air inlet is formed in the top of the shell, an air outlet is formed in the bottom of the shell, a filament non-woven filter cloth filter element is arranged in the shell and is formed by laminating multiple layers of filament non-woven filter cloth, a layer of active carbon filter element is arranged under the filament non-woven filter cloth filter element in the shell and comprises active carbon packaged by non-woven fabrics. Compared with the prior art, the automotive air-conditioning filter has the advantages that the problems that a current automotive air-conditioning filter cannot be used for effectively filtering harmful gas and is poor in filtering effect are solved.

The invention provides an automotive air conditioner controlling method and an air conditioner controller. The automotive air conditioner controlling method comprises the steps of acquiring out-of-automobile environment information by the air conditioner controller from an Internet-of-vehicles system, wherein the out-of-automobile environment information at least comprises season, time, altitude, surrounding environment, weather, out-of-automobile temperature, out-of-automobile humidity, sunlight intensity and air quality; receiving in-automobile environment information by the air conditioner controller, wherein the in-automobile environment information is acquired by an air conditioner sensor and at least comprises an in-automobile temperature and an evaporator outlet air temperature; analyzing the out-of-automobile environment information and the in-automobile environment information by the air conditioner controller, thereby acquiring an in-automobile required environment; and conditioning the in-automobile environment which corresponds with the in-automobile environment information by the air conditioner controller until the in-automobile environment is same with the in-automobile required environment. The automotive air conditioner controlling method and the air conditioner controller have advantages of realizing automatic generation of a comfortable in-automobile environment for a user, improving user experience and improving driving safety.

The invention discloses a warpage resistance nylon 6 composite material for a vehicle air conditioning air door and a preparation method thereof. The composite material is composed of nylon 6 chips, fiberglass, glass microballoons, compatilizer, antioxidizer, a coupling agent and a lubricating agent. The preparation method includes the following steps: (1) after being uniformly mixed, the nylon 6 chips, the compatilizer, the antioxidizer, the coupling agent and the lubricating agent are added into a double screw extruder on the first segment of a barrel, the glass microballoons are added by a side feeding machine on the fourth segment of the barrel, and the fiberglass is added by the side feeding machine on the sixth segment of the barrel; and (2) after being extruded outside, the prepared particles are dried and cooled, and finally the warpage resistance nylon 6 composite material for the vehicle air conditioning air door can be obtained. The warpage resistance nylon 6 composite material prepared by the invention has the advantages of extremely high flexural modulus, high fluidity and favorable dimension stability, solves the problem of warpage of a large finished piece caused by material shrinkage, and guarantees the assembly of the finished piece.

In an air conditioner for an automobile, restriction on arrangement of electric apparatus is removed, small-sized and light-weighted formation is achieved by promoting cooling capacity of the electric apparatus by a cooling fluid by an inexpensive constitution and firm defrosting is enabled by closing an air flow path of an exterior heat exchanger. For that purpose, there are provided a refrigeration cycle having an electrically driven compressor and an exterior heat exchanger and a radiator used in an electric automobile having a driving motor for driving the automobile and a motor driving power source for driving the driving motor and connected to cool a heat generating electric apparatus such as the driving motor or the motor driving power source via the cooling fluid, the radiator is arranged in the air flow path of exterior fan and an opening and closing apparatus for opening and closing the air flow path of the exterior heat exchanger is provided.

The amount of cooling water supplied to an automobile air conditioner heater core is adjusted based on a user set temperature. The heater core has two tanks spaced from each other by a predetermined distance. Cooling water is introduced and discharged into the first or second tank via inlet and outlet pipes respectively connected to the tanks. Ends of plural tubes are respectively fixed between the tanks. Fins extend between the tubes. Cooling water is supplied to one side of the inlet pipe. The cooling water is discharged through a bypass line at one side of the inlet pipe without passing through the heater. The amount of cooling water introduced into the heater core is adjusted by a liquid flow rate controller.