A climate control system for vehicles includes an internal combustion engine that may be coupled to selectively power a first motor generator, and an air conditioning compressor that may be selectively powered by one or both of the first motor generator and a second motor generator, or by the internal combustion engine. The system may include a rechargeable battery, and a vehicle controller having a vehicle state circuit structured to determine a vehicle operating condition value and a state-of-charge value of the rechargeable battery, and a coupling determination circuit structured to provide an internal combustion engine-first motor generator coupling command in response to the vehicle operating condition value and the state-of-charge value. In response to the internal combustion engine-first motor generator coupling command being provided as coupled, the internal combustion engine may power the first motor generator.

An HVAC system includes a compressor, condenser, and evaporator. A sensor measures a value associated with the refrigerant in the condenser or the evaporator, and a controller is communicatively coupled to the compressor and the sensor. The controller determines, based on an operational history the compressor, that pre-requisite criteria are satisfied for entering a sensor validation mode. After determining the pre-requisite criteria are satisfied, an initial sensor measurement value is determined. Following determining the initial sensor measurement value, the compressor is operated according to a sensor-validation mode. Following operating the compressor according to the sensor-validation mode for at least a minimum time, a current sensor measurement value is determined. The controller determines whether validation criteria are satisfied for the current sensor value. In response to determining that the validation criteria are satisfied, the controller determines that the sensor is validated.

A transport refrigeration system (26) includes a transport refrigeration unit (44), an energy storage device (46), a supply refrigerant tube (108), a return refrigerant tube (110) and at least one electrical pathway (98). The transport refrigeration unit is adapted to cool a container. The energy storage device is adapted to provide electrical energy for operating the transport refrigeration unit. The supply refrigerant tube flows a refrigerant from the transport refrigeration unit to the energy storage device, and the return refrigerant tube flows the refrigerant from the energy storage device back to the transport refrigeration unit to cool the battery in the energy storage device (46). The electrical pathway extends between the transport refrigeration unit and the energy storage device, and supplies at least electrical energy to the transport refrigeration unit.

A vehicle air conditioner has a refrigeration cycle system including a compressor. The rotational frequency of the compressor is variably controlled, and the compressor is prevented from being operated within a resonating rotational frequency range of the compressor in which the vibration frequency of the compressor and the natural frequency of a steering device resonate with each other. When the vehicle performs automated driving, the compressor is also allowed to operate within the resonating rotational frequency range.

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).

An electrical power module and transport refrigeration system. The electrical power module is used for an apparatus powered by a battery or/and a fuel, has a working mode and includes: a DC buck module configured to step-down a DC at least provided by the battery to a low-voltage output DC for output, or/and a DC boost module configured to step-up a low-voltage input DC provided by the apparatus powered by the fuel to a high-voltage DC for output; and a control module connected to a transport refrigeration unit, and configured to, in the working mode, control the operation of the DC buck module or/and the DC boost module.

A generator set for a transport climate control unit is provided that is operable at a first frequency and a second frequency. The generator set includes a generator, a prime mover configured to operate at a first non-zero speed and a second non-zero speed that is less than the first non-zero speed, and a genset controller configured to control operation of the generator set. When operating at the first non-zero speed, the genset controller is configured to monitor a prime mover load parameter to determine whether the prime mover is approaching or has exceeded an overload or stall situation. The genset controller is configured to reduce the speed of the prime mover from the first non-zero speed to the second non-zero speed to prevent the overload or stall situation.

An electric vehicle drive system and an electric vehicle. The electric vehicle drive system includes a powertrain and a transmission system. The powertrain includes a first power output mechanism and a second power output mechanism. One end of the transmission system is connected to the first power output mechanism, and the other end is configured to be connected to an air-conditioner compressor. The second power output mechanism is configured to drive the electric vehicle to travel. The powertrain in the electric vehicle drive system can also drive the air-conditioner compressor when driving the electric vehicle, to reduce a quantity of components inside the electric vehicle, thereby reducing space occupancy and costs.

A dual compressor for a vehicle is disclosed.

The dual compressor for the vehicle is provided, and comprises a first motor that operates according to whether power is applied, a first shaft connected to the first motor to transmit a torque of the first motor, a first compressing unit connected to the first shaft to compress a refrigerant according to the operation of the first motor, a second motor that operates according to whether power is applied, a second shaft connected to the second motor to transmit a torque of the second motor, a second compressing unit connected to the second shaft to compress a refrigerant according to the operation of the second motor, and an inverter electrically connected to the first and second motors, respectively, to drive the first and second motors by converting DC power supplied from a vehicle into AC power, and controlling the output of the first compressing unit or the second compressing unit by controlling the power applied to the first motor or the second motor.