Method and device for controlling air-conditioning heating water pump

Abstract

The invention discloses a method and device for controlling an air-conditioning and heating water pump, and relates to the technical field of fuel cell vehicles. The method for controlling an air-conditioning and heating water pump includes: collecting the current ambient temperature value in the compartment; judging whether the current ambient temperature value is lower than a first preset Temperature threshold; if the current ambient temperature value is less than the first preset temperature threshold, collect the engine cooling water temperature value; determine whether the engine cooling water temperature value is greater than the second preset temperature threshold; if the engine cooling water temperature value is greater than the second preset temperature Threshold, identify the current driving mode of the car, and control the corresponding speed level of the air conditioning and heating water pump according to the current driving mode. By collecting the current ambient temperature value in the compartment and the temperature value of the engine cooling water, and controlling the air-conditioning heating water pump on the warm air branch road according to the collected values, the best heating effect can be obtained, and the comfort of the passengers can be improved. .

Description

technical field [0001] The invention relates to the technical field of hybrid vehicles, in particular to an air conditioning heating water pump control method and device. Background technique [0002] The heating system of the air-conditioning and heating system of fuel vehicles in winter uses the waste heat of the engine, and uses the mechanical water pump of the engine itself (the capacity of the water pump is related to the speed of the engine) as the power to continuously transport heat to the branch of the heating air in the small water circulation. The warm air core, and then through the air supply system, exchange the heat in the water to the air, and continuously transport it to the compartment for heating for passengers. [0003] The existing technical scheme adopts the scheme of a fuel vehicle. There is a mechanical water pump in the engine as a power source. When the fuel engine is working, the water pump works, and the small circulation waterway warm air branch i...

AI Technical Summary

Problems solved by technology

Existing hybrid vehicles have two states of fuel drive and pure electric drive. The water circulation in the air-conditioning and heating water circuit branch only depends on the mechanical water pump that comes with the engine, which cannot guarantee sufficient flow and heat supply, resulting in poor heating effect.

In the pure electric mode, although the pure electric driving time is less, the mechanical water pump does not work, which will cause no water flow circulation in the heating branch circuit, which will have a certain impact on the heating effect

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