Abstract: An electrically driven pump includes a first housing and a second housing, and the first housing and the second housing are fixed to form an impeller chamber for receiving an impeller. The second housing and a rear housing are fixed to form a first receiving chamber for receiving a motor assembly; and the motor assembly includes a stator and a rotor, the rotor is arranged in an inner cavity enclosed by the stator, and the rotor drives the impeller to rotate. An electronic control unit is cooperated with the motor assembly, and the electronic control unit controls the operation of the motor assembly. The electrically driven pump includes a cooling passage for accommodating a working medium, and the working medium in the cooling passage may exchange heat with the electronic control unit, thereby facilitating improving the service life of the electrically driven pump.

Abstract: A refrigerant circulation system includes a control system and an electronic expansion valve. The control system includes a central processing module, a step drive control module, and a drive module. The operation of the electronic expansion valve in the refrigerant circulation system includes an initialization operation stage and a flow adjustment operation stage, and a maximum operation speed of the electronic expansion valve in the flow adjustment operation stage is smaller than or equal to a maximum operation speed of the electronic expansion valve in the initialization operation stage, and a minimum operation speed of the electronic expansion valve in the flow adjustment operation stage is smaller than a minimum operation speed of the electronic expansion valve in the initialization operation stage, so that stable and fast adjustment of the system can be implemented, and the system keeps stable running.

Abstract: A heat exchanger includes a case body and a heat exchange core, a first fluid channel is formed in the case body, a second fluid channel is formed in the heat exchange core, the heat exchange core includes a flat pipe, the second fluid channel is located in the flat pipe, the flat pipe includes a plurality of bending parts and a plurality of flat and straight parts; a first hole in communication with a first connection pipe and a second hole in communication with a second connection pipe are provided in the case body, the first hole partially corresponds to the bending parts on one side of the flat pipe or the flat and straight parts close to the bending parts, and the second hole partially corresponds to the bending parts on the other side or the flat and straight parts close to the bending parts.

Abstract: A heat exchange system, an air conditioning control system, and an air conditioning system control method. A control portion of the heat exchange system respectively adjusts the opening of electronic expansion valves, and controls the electronic expansion valves to store an initialisation state and position information before powering down so that the electronic expansion valves first perform initialisation state switching when next powering up, thereby reducing the risk of the electronic expansion valves being out of step, and saving system start-up time.

Abstract: The disclosure describes methods of managing the power consumption of a GNSS receiver by identifying when to activate and deactivate the GNSS receiver, and by managing storage of GNSS location data points. In one embodiment, the GNSS receiver is activated if there is a change in wireless transmissions from stationary sources. In another embodiment, the GNSS receiver is deactivated when the GNSS signal quality is sufficient to calculate a GNSS location. In another embodiment, the GNSS receiver is deactivated for a time period in correlation with a GNSS speed. In yet another embodiment, redundant GNSS location data points are identified and only non-redundant data points are stored. In yet another embodiment, a GNSS device comprises a processor and a GNSS receiver configured to track GNSS signals and calculate a GNSS location. The GNSS receiver deactivates when the average signal quality value meets or exceeds the baseline signal value.

Abstract: An electronic pump includes a second housing, a rotor part, a stator part and a circuit board. A pump chamber is separated by a partition into a wet chamber allowing a working medium to pass through and at least one dry chamber where there is no working medium passing through, and the rotor part is arranged in the wet chamber. The electronic pump further includes a shaft, a sunken portion is formed at a top portion of the partition, and the shaft and a bottom of the sunken portion are fixed by injection molding. A portion where the rotor part is in contact with the shaft is a cooperation portion of the rotor part, and the cooperation portion is arranged in a cavity of the sunken portion.

Abstract: An automobile air-conditioning system is provided, which includes an evaporator and an electrical expansion valve in communication via pipes, with the electrical expansion valve including a coil and a valve body, the coil being fixedly mounted on the valve body; the system also includes a support, the support including a heat-sinking bridge and a cooling ring, with the evaporator provided on one side of the heat-sinking bridge and the cooling ring provided on the other side of the heat-sinking bridge; the heat-sinking bridge and the cooling ring are formed in one piece or are connected with each other fixedly, and the coil is provided within the cooling ring. The automobile air-conditioning system has the advantages of a compact structural design, is capable of effectively cooling the electrical expansion valve, and has high system strength, stable transmission of coolant, and high security.

Abstract: An electrically driven pump is provided, which includes an impeller. The impeller includes an upper plate, blades and a lower plate. The blades are formed on a lower surface of the upper plate, the blades include first blades and second blades, and a length of each of the first blades is greater than a length of each of the second blades. The first blades are uniformly distributed along a circumference of the upper plate. The first blades and the second blades are distributed alternately in the circumferential direction. The first blades each include a first head portion and a first tail portion, the second blade includes a second head portion and a second tail portion, and the first tail portion and the second tail portion are aligned with outer edge of the upper plate. The impeller arranged in such manner facilitates the improvement of hydraulic efficiency and lift.

Abstract: The disclosure describes methods of managing the power consumption of a GNSS receiver by identifying when to activate and deactivate the GNSS receiver, and by managing storage of GNSS location data points. In one embodiment, the GNSS receiver is activated if there is a change in wireless transmissions from stationary sources. In another embodiment, the GNSS receiver is deactivated when the GNSS signal quality is sufficient to calculate a GNSS location. In another embodiment, the GNSS receiver is deactivated for a time period in correlation with a GNSS speed. In yet another embodiment, redundant GNSS location data points are identified and only non-redundant data points are stored. In yet another embodiment, a GNSS device comprises a processor and a GNSS receiver configured to track GNSS signals and calculate a GNSS location. The GNSS receiver deactivates when the average signal quality value meets or exceeds the baseline signal value.

Abstract: A centrifugal pump is provided, which includes a rotor assembly and a shaft. The rotor assembly includes an injection molded body and a shaft sleeve, the rotor assembly is injection molded taking the shaft sleeve as an injection molding insert, and the impeller injection molded body and the shaft sleeve are fixed by injection molding. The rotor assembly is rotatably supported on the shaft by the shaft sleeve, and the shaft sleeve is processed by injection molding or forging. The shaft sleeve is of a hollow structure, and the shaft sleeve includes a body. A central hole is formed in the body. The shaft sleeve further includes an impeller limiting portion configured to limit a rotating movement and an axial movement of the shaft sleeve with respect to the injection molded body.

Abstract: A centrifugal pump is provided, which includes a rotor assembly, the rotor assembly includes an impeller including multiple blades and a blade fixing portion, the blades and the blade fixing portion are integrally formed by injection molding, and the blades are circumferentially distributed at equal intervals along the blade fixing portion. The blade includes a first side, a second side, a blade top portion and a blade root portion, and the blade root portion and the blade fixing portion are fixed by injection molding. The blade top portion is a cantilever end of the blade, and the first side and the second side are arranged between the blade root portion and the blade top portion. The rotor assembly arranged in such manner can improve the hydraulic efficiency and lift of the centrifugal pump.

Abstract: An electrically driven pump includes a first housing and a second housing, and the first housing and the second housing are fixed to form an impeller chamber for receiving an impeller. The second housing and a rear housing are fixed to form a first receiving chamber for receiving a motor assembly; and the motor assembly includes a stator and a rotor, the rotor is arranged in an inner cavity enclosed by the stator, and the rotor drives the impeller to rotate. An electronic control unit is cooperated with the motor assembly, and the electronic control unit controls the operation of the motor assembly. The electrically driven pump includes a cooling passage for accommodating a working medium, and the working medium in the cooling passage may exchange heat with the electronic control unit, thereby facilitating improving the service life of the electrically driven pump.

Abstract: A thermal management system includes a cooling circuit, a heat exchange circuit, a heat recovery cooling device and a passenger compartment temperature regulating device. The cooling device includes a condenser, a throttling element and an evaporator. The heat exchange device includes a first air cooled heat exchanger and a heater. The heat recovery cooling device includes a pump, a second air cooled beat exchanger and a cooler. The passenger compartment temperature regulating device includes an air flowing passage and a fan arranged in the air flowing passage, or a compartment heat exchanger. The first air cooled heat exchanger and the heater are in communication with the condenser through a first flow regulating valve. The cooler and the heat emission component heat exchanger are in communication with the evaporator through a second flow regulating valve. The second air cooled heat exchanger is selectively connected in series to the heat emission component heat exchanger.

Abstract: A refrigerant circulation system includes a control system and an electronic expansion valve. The control system includes a central processing module, a step drive control module, and a drive module. The operation of the electronic expansion valve in the refrigerant circulation system includes an initialization operation stage and a flow adjustment operation stage, and a maximum operation speed of the electronic expansion valve in the flow adjustment operation stage is smaller than or equal to a maximum operation speed of the electronic expansion valve in the initialization operation stage, and a minimum operation speed of the electronic expansion valve in the flow adjustment operation stage is smaller than a minimum operation speed of the electronic expansion valve in the initialization operation stage, so that stable and fast adjustment of the system can be implemented, and the system keeps stable running.

Abstract: A control method for a vehicle air-conditioning system and a vehicle air-conditioning system are provided. The control method comprises: acquiring an actual superheat degree, a preset superheat degree and an opening degree of an electronic expansion valve; and determining whether the electronic expansion valve is in a fault state or not according to the actual superheat degree, the preset superheat degree and the opening degree of the electronic expansion valve; if yes, outputting a control signal to an executive control mechanism to enable same to adjust a parameter of a device affecting a change of the actual degree of superheat in a vehicle air-conditioning system so as to adjust the superheat degree of the vehicle air-conditioning system.

Abstract: A method for controlling a superheat degree of a vehicle air-conditioning system, and a vehicle air-conditioning system are provided. The method comprises: acquiring an actual superheat degree in real time, a preset superheat degree and a feed-forward information which influences a change of the actual superheat degree; and adjusting an opening degree of an electronic expansion valve in real time according to the actual superheat degree, the preset superheat degree and the feed-forward information that are acquired, so as to control the superheat degree of the vehicle air-conditioning system.

Abstract: An electronic pump includes a second housing, a rotor part, a stator part and a circuit board. A pump chamber is separated by a partition into a wet chamber allowing a working medium to pass through and at least one dry chamber where there is no working medium passing through, and the rotor part is arranged in the wet chamber. The electronic pump further includes a shaft, a sunken portion is formed at a top portion of the partition, and the shaft and a bottom of the sunken portion are fixed by injection molding. A portion where the rotor part is in contact with the shaft is a cooperation portion of the rotor part, and the cooperation portion is arranged in a cavity of the sunken portion.

Abstract: A thermal management system for an electric vehicle includes a device for cooling one or more heat generating components, an in-cabin heat exchanger, and a heat pump device. The heat pump device includes a compressor, a first heat exchanger, a throttling element, and a second heat exchanger which are connected through pipelines and form a first loop. The first heat exchanger and the second heat exchanger are both dual channel exchangers. The device for cooling one or more heat generating components forms a second loop with the second channel of the first heat exchanger, and forms a third loop with the second channel of the second heat exchanger. The in-cabin heat exchanger forms a fourth loop with the second channel of the second heat exchanger. Only one of the second, third, and fourth loops is not shut off at any given time.

Abstract: An electronic expansion valve of an air-conditioning system includes a valve body and an expansion valve controller; the valve body includes a refrigerant channel, a valve pin, and a stepping motor; the stepping motor controls the movement of the valve pin to adjust the size of the opening of the refrigerant channel; the expansion valve controller outputs different control signals according to different operation conditions of the electronic expansion valve; inputting different current to the stepping motor so as to drive the stepping motor to rotate; and controlling the movement of the valve pin to adjust the size of the refrigerant channel. The electronic expansion valve employs different current to drive a stepping motor according to different operation conditions, thus reducing system energy consumption, overcoming abnormal fault of the motor, and extending the service life of the electronic expansion valve.