Extended range thermal management system, thermal management method and vehicle

Abstract

An extended-range thermal management system, a thermal management method, and a vehicle, the extended-range thermal management system includes an engine lubricating cycle, an engine cooling cycle, and a controller, and the engine lubricating cycle and the engine cooling cycle share an oil pan and a first pump body. The engine cooling cycle is also provided with a first control valve and a first temperature sensor, the first control valve and the first temperature sensor are electrically connected to the controller, and the controller receives the temperature of the oil in the engine cooling cycle detected by the first temperature sensor. temperature, and judge according to the temperature, when the temperature of the oil in the engine cooling cycle is greater than the first threshold, the controller controls the first control valve to open, so that the oil enters the engine cooling cycle. Compared with the existing technology, the extended-range thermal management system can accelerate the warm-up process, reduce fuel consumption, and can reduce the number of parts and costs through integration.

Description

technical field [0001] The invention relates to the field of vehicle power systems, in particular to a range-extended thermal management system, a thermal management method and a vehicle. Background technique [0002] With the increasingly stringent fuel consumption and emission regulations in the global automotive industry, the fuel consumption per 100 kilometers in 25 years should be 4L, and the annual fuel consumption target per 100 kilometers is 3.2L. Therefore, the development trend of automobiles must be electrification and intelligence. However, pure electric vehicles face the problems of charging anxiety caused by the cost of battery packs, high vehicle prices, lack of basic charging facilities, and user mileage anxiety. Major international OEMs agree that the hybrid model has been the main development direction of the automotive industry for a long time. [0003] At present, most of the range-extended electric vehicles on the market use the original four-stroke eng...

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Problems solved by technology

[0003] At present, most of the range-extended electric vehicles on the market use the original four-stroke engine as the range-extender engine. The existing range-extender assembly has poor fuel consumption and emission of the engine, and the overall level of the cylinder wall temperature of the water-cooled engine is low, which is not conducive to the improvement of thermal efficiency; Programmed vehicles start and stop more frequently, which is not conducive to engine insulation and other shortcomings

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