Hybrid vehicle air conditioner warm air control system and control method thereof

Abstract

The invention discloses a hybrid vehicle air conditioner warm air control system and a control method thereof. The hybrid vehicle air conditioner warm air control method comprises the steps that the engine coolant temperature, the warm air core temperature and the target temperature in a cab are obtained; when the vehicle is in the hybrid mode, whether the engine coolant temperature is larger than the target temperature in a cab or not is judged, if yes, an engine coolant pipeline is opened, and a heater pipeline is closed; if not, whether the engine coolant temperature is larger than the warm air core temperature or not is judged, and if yes, a heater pipeline and an engine coolant pipeline are opened. According to the hybrid vehicle air conditioner warm air control method, when the engine works, a large amount of heat generated by the engine cooling system is utilized, so that the warm air core is heated according to needs, on one hand, the temperature rising effect of a cab air conditioner can be accelerated, and on the other hand, the vehicle energy consumption caused when the heater is independently used for heating the warm air core can be reduced, the cost is reduced, and the energy-saving and environment-friendly requirements can be met.

Description

technical field [0001] The invention relates to the technical field of hybrid vehicles, in particular to a method for controlling air conditioning and warm air of a hybrid vehicle and a system for controlling air conditioning and heating of a hybrid vehicle. Background technique [0002] Currently, hybrid vehicles are equipped with more than two power sources, including an internal combustion engine and a high-voltage battery. When the power is sufficient and the load is not heavy, the vehicle works in pure electric mode, and the power is completely supplied by the high-voltage battery; when the power is low or the load is heavy, the vehicle works in hybrid mode, and the internal combustion engine starts to drive the generator to work, and the power is supplied by the high-voltage battery Supplied with generator. However, the air-conditioning and heating systems of hybrid vehicles on the market are independent, that is, the air-conditioning waterway is heated by the PTC hea...

AI Technical Summary

Problems solved by technology

However, the air-conditioning and heating systems of hybrid vehicles on the market are independent, that is, the air-conditioning waterway is heated by the PTC heater, and the use of the heater will inevitably further increase the energy consumption of the vehicle, which is not conducive to the demand for energy conservation and environmental protection

[0003] Therefore, how to avoid the increase of vehicle energy consumption caused by the air-conditioning and heating system of the hybrid vehicle heating the air-conditioning waterway through the PTC heater is a technical problem that those skilled in the art need to solve at present.

Images