摘要:
A HVAC system 75 for a vehicle 10 that includes a propulsion system, a frame 15 and a door 35 coupled to the frame. The HVAC system includes a refrigeration circuit that selectively controls the temperature of the vehicle based on a sensed temperature within the vehicle. The refrigeration circuit includes an exterior heat exchanger, a first air moving device coupled to the exterior heat exchanger, an interior heat exchanger, a second air moving device coupled to the interior heat exchanger, and a compressor. The HVAC system also includes a controller that is operable to detect a condition of the vehicle that includes at least one of a location of the vehicle, and a load of the propulsion system. The controller is programmed to adjust the refrigeration circuit in response to the sensed temperature of the vehicle and the detected vehicle condition. The controller is programmed to decrease a speed of at least one of the first air moving device, the second air moving device, and the compressor in response to detection of a first condition of the vehicle and to increase the speed of at least one of the first air moving device, the second air moving device, and the compressor that was previously operated at a decreased speed in response to detection of a second condition of the vehicle. The first vehicle condition includes the location of the vehicle detected in close proximity with a freestanding structure, and the second vehicle condition includes the location of the vehicle detected at least a predetermined distance from the freestanding structure.
摘要:
A buck/boost rectifier. The rectifier is connectable to an alternating current power source and includes an upper bus, a lower bus, an upper rectifier, a lower rectifier, a pulse-width-modulation (PWM) controller, a phase-angle (PA) controller, and a capacitor. The upper rectifier is coupled to the upper bus, and the lower rectifier is coupled in a series-type relationship with the upper rectifier and to the lower bus. The PWM controller is coupled to the lower rectifier and is configured to boost a direct current (DC) voltage output by the rectifier. The PA controller is coupled to the lower rectifier and is configured to buck the DC voltage output by the rectifier. The capacitor is coupled between the upper bus and the lower bus.
摘要:
A tractor and trailer combination including a tractor having a tractor frame, a supply unit, a trailer coupling, a skid plate, and a first connector coupled to the tractor frame and coupled to the supply unit to receive at least one of high voltage electrical power and coolant from the supply unit. The combination also includes a trailer having a trailer frame, a tractor coupling rotatably connecting the trailer to the tractor, and a second connector coupled to the trailer and configured to provide the at least one of high voltage electrical power and coolant to the trailer. The combination further includes a conduit having a first end coupled to the first connector, a second end coupled to the second connector. The conduit flexes and is supported between the first and second ends by the skid plate throughout rotation of the trailer relative to the tractor.
摘要:
Systems and methods for providing power to a refrigeration unit (105) of a hybrid vehicle. The system includes an accumulation choke (135), a PWM rectifier (140), and a frequency inverter (145). The accumulation choke is configured to receive a first AC power, a second AC power, and a DC power. The accumulation choke and PWM rectifier convert the received power into an intermediate DC power having a peak voltage. The PWM rectifier provides the intermediate DC power to the frequency inverter. The frequency inverter converts the intermediate DC power to an output AC power. The frequency inverter provides the output AC power to the refrigeration unit.
摘要:
Systems and methods for providing power to a refrigeration unit or an air conditioner used on a hybrid vehicle. The system includes an accumulation choke, a PWM rectifier, and a frequency inverter. The accumulation choke is configured to receive a first AC power, a second AC power, and a DC power. The accumulation choke and PWM rectifier convert the received power into an intermediate DC power having a peak voltage. The PWM rectifier provides the intermediate DC power to the frequency inverter. The frequency inverter converts the intermediate DC power to an output AC power. The frequency inverter provides the output AC power to the refrigeration unit.
摘要:
A HVAC system 75 for a vehicle 10 that includes a propulsion system, a frame 15 and a door 35 coupled to the frame. The HVAC system includes a refrigeration circuit that selectively controls the temperature of the vehicle based on a sensed temperature within the vehicle. The refrigeration circuit includes an exterior heat exchanger, a first air moving device coupled to the exterior heat exchanger, an interior heat exchanger, a second air moving device coupled to the interior heat exchanger, and a compressor. The HVAC system also includes a controller that is operable to detect a condition of the vehicle that includes at least one of a location of the vehicle, and a load of the propulsion system. The controller is programmed to adjust the refrigeration circuit in response to the sensed temperature of the vehicle and the detected vehicle condition. The controller is programmed to decrease a speed of at least one of the first air moving device, the second air moving device, and the compressor in response to detection of a first condition of the vehicle and to increase the speed of at least one of the first air moving device, the second air moving device, and the compressor that was previously operated at a decreased speed in response to detection of a second condition of the vehicle. The first vehicle condition includes the location of the vehicle detected in close proximity with a freestanding structure, and the second vehicle condition includes the location of the vehicle detected at least a predetermined distance from the freestanding structure.