A transport climate control system is described which comprises a controller configured to determine a power demand of a climate control circuit of the system and to provide power to the climate control circuit in a first power mode when the power demand is above a power threshold and to provide power to the climate control circuit in a second power mode when the power demand is at or below the power threshold. In the first power mode, power is provided from a prime mover and, in the second power mode, power is provided from an energy storage source and not the prime mover. Corresponding methods for controlling a transport climate control system are also described.

A method is provided for controlling an air conditioning compressor in a hybrid powertrain of a motor vehicle. The hybrid powertrain includes an internal combustion engine, a first electric machine, and a second electric machine The electric machines and the internal combustion engine are selectively connected to the air conditioning compressor so as to function as a drive of the air conditioning compressor. At least one of the first electric machine, the second electric machine, or the internal combustion engine is selected as the drive is selected based on a selection by an occupant of the motor vehicle. The selected drive is actuated to drive the air conditioning compressor.

A hybrid power conversion system (60) for an air conditioned transport vehicle (24) including a plurality of refrigeration components (52, 54, 56) for heating and/or cooling a refrigerated volume (40). Also included is a battery (62) storing electrical power to be provided to at least one of the plurality of refrigeration components (52, 54, 56). Further included is at least one supplemental power source (68, 70, 72, 76) providing electrical power to the battery (62) to provide a total available DC power for the refrigeration components (52, 54, 56). Yet further included is a power converter (64) converting the total available DC power to a total AC power, the total AC power provided to at least one of the plurality of refrigeration components (52, 54, 56).

A transport refrigeration system (1) includes a transportation refrigeration unit (37); a generator (11) connected to a wheel axle (7A) of the transport refrigeration system (1), the wheel axle (7A) being coupled to a wheel (5), wherein the generator (11) is configured to be driven to generate electricity by rotation of the wheel axle (7A) and to supply that electricity to the transportation refrigeration unit (37); and a damper (23) connected to the wheel axle (7A) between the wheel (5) and the generator (11). Short spikes or pulsations in torque along the wheel axle (7A) resulting from, e.g., harsh braking or wheel blocking can be, dampened, either wholly or partly, by the damper (23) such that damage to the transport refrigeration system (1) can be avoided.

A transport refrigeration system including: a transportation refrigeration unit configured to provide conditioned air to a refrigerated cargo space; an energy storage device configured to store DC electrical energy to power the transportation refrigeration unit; and a DC-to-AC variable invertor electrically connecting the energy storage device to the transportation refrigeration unit, the DC-to-AC variable invertor being configured to convert the DC electrical energy from the energy storage device to AC electrical energy in a variable continuous energy output to power the transportation refrigeration unit.

A temperature modulation assembly for a motor vehicle's passenger compartment includes an assembly panel having a single or a plurality of solar panels which convert sunlight into electricity and an assembly housing which includes an internal thermoelectric Peltier cooler having a heat sink on its cool side and a heat sink on its hot side and an internal fluid distribution module which draws air into the assembly housing, causes some of the air to be cooled by passing through the cool side heat sink and directed back into the passenger compartment and the rest of the air to be heated by passing through the hot side heat sink and directed back into the passenger compartment. The components of the assembly housing utilize electricity that originates at the assembly panel, and the assembly housing is structured to distribute cooled towards near the passenger seating and heated air towards the windshield.

A low-voltage system of a transport refrigeration unit (TRU) includes a low-voltage direct current (LVDC) source; and a distribution bus coupled to the LVDC, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator.

A high-voltage system for a transport refrigeration unit (TRU) includes a high-voltage direct current (HVDC) source, and a first converter coupling the HVDC source to a distribution bus, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator. A distribution bus is coupled to a compressor bus coupled to the compressor, a condenser bus coupled to the at least one condenser, and an evaporator bus coupled to the at least one evaporator.

There is disclosed a power generation assembly (300) for powering a transport refrigeration system (TRS) (52) of a vehicle (10), the power generation assembly (300) comprising: a torque converter (402) having an engine side input (404) and a transmission side output (406); a power take-off device (302) coupled to the engine side input (404) of the torque converter (402), the power take-off device (302) having a rotary output; a permanent magnet generator (304) having a rotor (420) directly coupled to the power take-off device (302) for power generation; wherein the power generation assembly (300) is configured to be housed in an engine bay (210) of a vehicle (10), and is configured to generate at least 8 kW of power when the engine side input (404) has a rotational speed of 500 rpm.

Technologies are described herein to prioritize delivery of power to electrical components associated with a vehicle and an electrically powered accessory. A power distribution unit may assess real-time power needs for the electrical storage system associated with the vehicle and electrical storage device of the electrically powered accessory and direct incoming power to the electrical storage system associated with the vehicle and the electrical storage device of the electrically powered accessory based on a prioritization of various factors.