Automotive air conditioner and control method thereof

Abstract

The invention discloses an automotive air conditioner and a control method thereof. The automotive air conditioner comprises an engine, an engine radiator, an air conditioner heating device and a heater, wherein the engine radiator cools the engine; the air conditioner heating device provides heat for space required heating by heat generated by the engine; and the heater can selectively supply heat for the engine and the air conditioner heating device. When the engine has enough heating capability, the traditional engine anti-freezing solution is adopted for heating; when the engine does not have enough heating capability, the engine and the heater can be simultaneously used for heating; because two effects are combined, the heating capability is improved for multiple times; and if the engine does not need to be started, the heater can be independently used for heating, thereby consuming no gasoline, and improving energy utilization rate, and being environment-friendly.

Description

【Technical field】 [0001] The invention relates to an automobile air-conditioning system, in particular to an automobile air-conditioner with a traditional engine and a power accumulator. 【Background technique】 [0002] The traditional way of heating the passenger compartment is to heat the antifreeze through the engine, or understand it as the waste heat of the engine. Therefore, on the one hand, the engine needs to be started when the passenger compartment is heated; on the other hand, the heating capacity is also limited by the state of the engine. In the cold season, when the engine is started in a cold car, if you immediately turn on the air conditioner to warm the air, because the water temperature of the engine antifreeze is basically the same as the ambient temperature, you will feel the cold wind blowing. The correct way is to let the engine run for a while before turning on the air conditioner, thus causing the heating to be too slow. [0003] According to a stati...

AI Technical Summary

Problems solved by technology

It takes about seven or eight minutes to more than ten minutes for a cold engine to reach the normal working temperature, depending on the type of vehicle. During this time, the so-called warm-up is required, and it is not suitable for high-speed driving.

[0004] The compressor of traditional automotive air-conditioning refrigeration is usually connected to the engine through a belt. The speed of the compressor and the speed of the engine have a fixed transmission ratio. The performance of the compressor is also directly affected by the state of the engine. When idling, the speed of the engine is the lowest , the speed of the compressor is also at the lowest state, so the cooling effect of the air conditioner is the worst at idle speed, and the air conditioner performance at idle speed becomes the bottleneck of the entire air conditioner performance

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