Abstract: An integrated vehicle and battery thermal management system for an electric work machine may include a battery module, a radiator, a fan to move air across the radiator, a battery coolant loop including a coolant pump, a refrigerant loop including a compressor, and a chiller providing heat transfer from the battery coolant loop to the refrigerant loop. A controller is operably connected to the coolant pump, the compressor and the fan and is configured to provide a passive cooling mode, a semi-passive cooling mode, and an active cooling mode, dependent upon monitored temperatures in the system.

Abstract: A battery powered electric excavator includes an undercarriage including left and right crawler tracks. A main frame is mounted on the undercarriage to be pivotable about a vertical pivot axis relative to the undercarriage. An operator's cabin is located on the main frame closer to the forward end than to the rearward end and located to one lateral side of the vertical pivot axis. At least one high voltage battery is located on the main frame rearward of the vertical pivot axis and rearward of the operator's cabin. A primary electric motor is operably connected to the at least one high voltage battery. At least one main hydraulic pump is driven by the primary electric motor. The primary electric motor, the main hydraulic pump, and a hydraulic reservoir are located on the main frame on an opposite lateral side of the vertical pivot axis from the operator's cabin.

Abstract: An integrated vehicle and battery thermal management system for an electric work machine may include a battery module, a radiator, a fan to move air across the radiator, a battery coolant loop including a coolant pump, a refrigerant loop including a compressor, and a chiller providing heat transfer from the battery coolant loop to the refrigerant loop. A controller is operably connected to the coolant pump, the compressor and the fan and is configured to provide a passive cooling mode, a semi-passive cooling mode, and an active cooling mode, dependent upon monitored temperatures in the system.