A refrigeration system includes a startup mode control module that receives at least one parameter associated with operation of a compressor of the refrigeration system, determines whether the at least one parameter indicates that the compressor is in a high ambient temperature startup condition, and selects, based on the determination, between a normal startup mode and a high ambient temperature startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, operates the compressor in the high ambient temperature startup mode in response to the startup mode control module selecting the high ambient temperature startup mode, and transitions from the high ambient temperature startup mode to the normal startup mode after a predetermined period associated with operating in the high ambient temperature startup mode.

Proposed is an electric compressor for a vehicle configured such that an electrical connection structure between a winding coil of an electric motor and a sealing terminal that connects an inverter unit to the electric motor is improved, thereby being capable of increasing assemblability of a product and reducing a production cost. The electric compressor includes an electric motor provided with a stator, a rotor, and a rotary shaft, a compression unit configured to compress a refrigerant according to a rotation of the rotary shaft, an inverter configured to control driving of the electric motor, a sealing terminal electrically connecting the electric motor to the inverter, and a cluster integrally formed on a portion of the stator, the cluster having an inner portion thereof provided with multiple connection terminals for electrically connecting a coil wound on the stator to multiple connection pins provided at the sealing terminal.

A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) operatively coupled to an evaporator heat exchanger (76) and an evaporator fan (98) configured to flow a return airflow (134) over the evaporator (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow (134) and configured measure the temperature thereof, a TRU controller (82) connected to the RAT sensor (142) that executes a process to determine an AC power requirement for the TRU (26) based on the RAT sensor (142); a generator power converter (164) configured to receive three phase AC power (163) from a three phase AC generator (162) and transmit a second DC power (165b) to an energy storage system (150); a power management system (124a) configured to receive three phase AC power (157) from at least the energy storage system (150) and generate a TRU DC power (129), and directing the TRU DC power (129) to the TRU system (26).

A vehicle air conditioning system includes an in-vehicle air conditioner that includes a refrigerant circulation circuit including a compressor and an evaporator; a weather information acquiring section configured to acquire weather information at a current location of a vehicle; an evaporator drying determining section configured to estimate a water retention amount of the evaporator based on the weather information acquired by the weather information acquiring section and an operation state of the in-vehicle air conditioner, and to determine whether the evaporator is in a dry state; and a compressor stop permitting section configured to output a permission signal for permitting stop of the compressor on a condition that the evaporator drying determining section determines that the evaporator is in the dry state.

A heating, ventilation, and air-conditioning (HVAC) system in a hybrid or battery-electric vehicle is provided. The HVAC system includes a compressor that has its own dedicated motor to control its speed. The compressor includes an inlet pressure sensor to determine and output the suction pressure, and an outlet pressure sensor to determine and output the discharge pressure of the compressor. At least one controller can be programmed to determine the discharge-to-suction pressure ratio, and limit the operating speed of the compressor in response to the ratio exceeding a pressure-ratio-threshold. The pressure-ratio-threshold can vary based on ambient air temperature. In the event an inlet pressure sensor is not available, the operating speed of the compressor can be reduced in response to the outlet pressure exceeding an ambient-temperature-based variable threshold.

A housing unit for an electronic component, in particular for an inverter of an electrical refrigerant compressor, wherein the housing unit includes a first housing element and a second housing element, which can be connected to a housing part of the refrigerant compressor, in particular to a motor housing of the refrigerant compressor, and in the process form a cavity which accommodates the electronic component, in particular the inverter.

A system in a transport refrigeration unit (TRU) for driving a compressor and/or fan(s) of the TRU by a variable frequency drive (VFD) that is operable using AC power comprises the VFD operatively connected between the compressor and one or more ac power source such as an engine-generator assembly of the TRU and/or an electrical grid. The same VFD or a different VFD is also operatively connected between the AC power source and fan(s) associated with an evaporator, and a condenser of the TRU. The VFD is configured to be operated by the AC power sources. The VFD is operable to receive a 3-phase AC power ranging from 200 to 650 volts and 0.25 to 25 KW from at least one of the AC power source, convert the received 3-phase AC power to supply AC or DC power to a motor associated with the compressor and/or the fan(s).

A transportation refrigeration unit TRU (26) and power system. The TRU (26) and power system including a compressor (58) configured to compress a refrigerant, an evaporator heat exchanger (76) operatively coupled to the compressor (58), and an evaporator fan (98) configured to provide return airflow and flow the return airflow over the evaporator heat exchanger (76). The system also includes a return air temperature RAT sensor (142) disposed in the return airflow and configured measure the temperature of the return airflow, a TRU controller (82) operably connected to the RAT sensor (142) and configured to execute a process to determine an AC power requirement for the TRU (26) based on at least the RAT (142), a generator power converter (164a) configured to provide a second DC power (165b), an energy storage system (150) configured to receive the second DC power (165) and provide a three phase AC power (157) to a power management system (124).

A substrate includes a substrate body, a flux coating portion which is coated with flux promoting solder fluidity on a surface of the substrate body, a conduction portion which is disposed on the surface of the substrate body to be separated from the flux coating portion and is conductive, and a silk portion which is disposed between the flux coating portion and the conduction portion on the surface of the substrate body and is provided by silk printing.

A vehicular air conditioning system includes a compressor configured to compress a gaseous refrigerant to have a high temperature and a high pressure while an output rotation speed thereof is variably controlled according to a cooling load in a vehicle interior, and a compressor performance deterioration determination part configured to determine whether or not the performance of the compressor has deteriorated according to the magnitude of a difference between an amount of work (W) of the compressor and an amount of power consumption (kW) of the compressor.