Patent classifications
B60H2001/3266
Refrigeration device with expansion valve coil temperature correction
There is disclosed a refrigeration device which is capable of inexpensively improving durability of an electronic expansion valve (an outdoor expansion valve) for use in a refrigerant circuit. A vehicle air conditioner 1 has a refrigerant circuit R including an outdoor expansion valve 6. The vehicle air conditioner includes a controller which controls energization to a coil of the outdoor expansion valve 6, and this controller executes operation limit control to limit an operation of the outdoor expansion valve 6 so that a temperature of the coil of the outdoor expansion valve 6 is not in excess of a predetermined value. The controller lengthens a control period of the outdoor expansion valve 6 and suppresses an operation amount of the outdoor expansion valve 6 within a predetermined limit value to limit a duty factor, in the operation limit control.
Crash detection system for transport refrigeration units
A transport refrigeration system (200) including: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine (26) through a first fuel line (332); a first shut off valve (450) located within the first fuel line (332) proximate the first fuel tank (330); a second shut off valve (72) located within the first fuel line (332) proximate the first engine (26); a sensor system (80) configured to detect at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in the first engine (26); and a controller (30) configured to close the first shutoff valve (450) and second shutoff valve (72) when at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in first engine (26) is detected.
System and method of controlling passage of refrigerant through eutectic plates and an evaporator of a refrigeration system for a container of a vehicle
A system including mode, engine, and battery modules, where the mode module determines whether to operate in an engine mode or a battery mode based on parameters. The engine module, while operating in the engine mode, runs a compressor at a first speed based on a temperature within a temperature controlled container of a vehicle and permits passage of refrigerant through eutectic plates independent of the temperature. A battery, while in the engine mode, is charged based on power received from an electrical source. The battery module, while operating in the battery mode and based on the temperature, runs the compressor at a second speed and prevents passage of the refrigerant through the eutectic plates. While in the battery mode, the battery is not being charged based on power from a shore power source and the electrical source from which power is received during the engine mode.
VEHICLE AIR CONDITIONING DEVICE
A vehicle air conditioning device includes a compressor and a controller. The controller is configured to set an upper limit value of the rotation speed of the compressor based on a combination of whether the speed of the vehicle is lower than a predetermined speed and whether a rotation speed of a fan device for a condenser is lower than a predetermined rotation speed.
VEHICLE TEMPERATURE REGULATION SYSTEM
A vehicle temperature regulation system includes: a power unit including a motor driven by a supply of electrical power from a battery to cause wheels to rotate; a first cooling unit including a first heat exchanger disposed at a vehicle front side of the power unit, and a first circulation path that allows refrigerant to circulate between the power unit and the first heat exchanger to perform heat exchange; a second cooling unit including a second heat exchanger disposed at a vehicle rear side of the power unit, an air conditioning unit, a compressor, and a second circulation path that allows refrigerant to circulate between the second heat exchanger, the air conditioning unit, and the compressor to perform heat exchange; and a duct that interconnects the air conditioning unit and the battery and through which cool air or warm air is supplied from the air conditioning unit to the battery.
MULTI-FUEL TRANSPORT REFRIGERATION UNIT
A transport refrigeration system (20) having: a multi-fuel capable engine (26); a refrigeration unit (22) powered by the engine (26); a first fuel system (120, 130, 140, 150) operably connected to the engine (26), the first fuel (120, 130, 140, 150) system including at least one of a propane fuel system (120), compressed natural gas fuel system (130), liquefied natural gas fuel system (140), and gasoline fuel system (150); a second fuel system (120, 130, 140, 150) operably connected to the engine (26), the second fuel system (120, 130, 140, 150) including at least one of a propane fuel system (120), compressed natural gas fuel system (130), liquefied natural gas fuel system (140), and gasoline fuel system (150); and a controller (30) configured to command a fuel to the engine (26) from the first fuel system (120, 130, 140, 150) or the second fuel system (120, 130, 140, 150), the controller (30) adjusts operation of the engine (26) in response to the fuel commanded. The first fuel system (120, 130, 140, 150) operates on a fuel different than the second fuel system (120, 130, 140, 150). Both fuel systems (120, 130, 140, 150) are separate modules being removably connected to the engine (26).
VEHICLE AIR CONDITIONING DEVICE
The present disclosure provides a vehicle air-conditioning device in which cooperative work with a power source is appropriate, which is easy to follow when the power source is restarted, and which reduces a driving force of a compressor at the time of restarting the power source. The vehicle air-conditioning device is provided with a refrigeration cycle. The refrigeration cycle has a compressor that is driven by a power source which may stop temporarily. The refrigeration cycle provides a low temperature and/or a high temperature. A high-temperature system and/or a low-temperature system is provided as a thermal buffer. The refrigeration cycle is provided with electric expansion valves which can be fully closed. The vehicle air-conditioning device is also provided with a control device, which fully closes the electric expansion valves when the compressor is temporarily stopped and which controls the electric expansion valves to the previous opening position when the compressor is restarted.
System and methods for extracting water from a HVAC system for water injection
Methods and systems are provided for adjusting a position of an air recirculation valve of a HVAC system to adjust a ratio of ambient to recirculated air routed to an AC evaporator to collect condensed water for water injection into an engine. In one example, a method may include adjusting the position of the air recirculation valve of the HVAC system based on a water level in a water storage tank of the water injection system. Further, the method may include adjusting the position of the air recirculation valve of the HVAC system based on a determined humidity of the ambient air and a determined humidity of the recirculated air.
HEAT EXCHANGE UNIT
In a heat exchange unit, a shutter device is disposed on a vehicle front side with respect to a coolant heat exchanger to open and close a passage for traveling air directed toward the coolant heat exchanger. A blower is switchable between a first blowing state in which air flows from the vehicle front side to the vehicle rear side and a second blowing state in which air flows from the vehicle rear side to the vehicle front side. In a case where a switch that makes a vehicle travelable is in an on state, a control unit switches the blower to the second blowing state, while an open degree of the shutter device is set at a closing side from a maximum open degree of the shutter device when a temperature of the engine coolant is equal to or lower than a predetermined temperature determination value.
DELIVERY SYSTEM AND VEHICLE
The delivery system includes a vehicle and a server. The vehicle includes a power storage device and a refrigerator. The server performs a delivery planning process for determining an expected delivery time. In the delivery planning process, the server is configured to transmit, to the vehicle, an inquiry as to reception of the delivery matter. When the vehicle receives the inquiry from the server, the vehicle is configured to set a receivable time period and transmit it to the server. When the vehicle sets the receivable time period, if the vehicle is in a state that the vehicle is able to receive power from the power supply facility, the vehicle is configured to set the receivable time period to be longer than the receivable time period set if the vehicle is not in the state that the vehicle is able to receive power from the power supply facility.