A heavy-duty, high-power and large-torque chassis dynamometer for a multi-environmental system, comprising a power testing platform and a rack located below the power testing platform, wherein a fixed base and a sliding base are disposed on the rack, support frames are mounted on the fixed base and the sliding base, and a plurality of hub assemblies are disposed on the support frames;
- each said hub assembly comprises a transmission shaft and a hub connected to the transmission shaft, a plurality of brake assemblies are disposed between an end, extending outwards, of the transmission shaft and the corresponding support frame, and a side, close to the hub, of the transmission shaft is sleeved with a driving assembly;
- and two ends of the driving assembly are sleeved with bearing assemblies respectively and are disposed on the corresponding support frames through motor mounting bases, a plurality of tension sensor assemblies are disposed between an outer circumference of the driving assembly and the corresponding support frames, and the hub partially stretches out of the power testing platform.