A method and system for controlling energy saving of an air conditioner of a hybrid electric vehicle

Abstract

The invention relates to an air conditioner energy-saving control method and system of a hybrid power vehicle, and belongs to the technical field of energy saving control over the hybrid power vehicle. Different control modes are provided according to the relationship between the actual temperature in the vehicle and the air conditioner set temperature. When the actual temperature in the vehicle does not reach the air conditioner set temperature, a clutch is controlled to be disengaged in advance when the vehicle slides or is braked, so that reverse-drive power of an engine is reduced, the sliding distance of the vehicle is longer, the sliding performance of the vehicle is improved, and the brake energy recovery of a main motor can be improved by disengaging the clutch in advance. When the actual temperature in the vehicle reaches the air conditioner set temperature, the disengagement rotation speed of the clutch is lowered during braking or sliding, the engine continues to carry out reverse driving before the clutch is disengaged, continuous refrigeration is carried out, the engine is stopped after the clutch is disengaged, and the engine is prevented from being in the work state all the time. The air conditioner energy-saving control method and system of the hybrid power vehicle can obviously improve the economy of the vehicle and lower oil consumption, the control modes are simple and effective, and the cost is low.

Description

technical field [0001] The invention relates to an air conditioner energy-saving control method and system of a hybrid vehicle, and belongs to the technical field of energy-saving control of hybrid vehicles. Background technique [0002] At present, the hybrid buses produced by several large domestic bus manufacturers are equipped with traditional air-conditioning. In summer, the vehicles are operated with air-conditioning. Except when the engine is driving the vehicle, the engine runs at idle speed for the rest of the time. Comparing traditional vehicles on the same route, it can be found that the fuel saving rate of hybrid vehicles in summer is very poor, which seriously affects the economic indicators of vehicles and violates the concept of energy conservation and environmental protection proposed at the beginning of hybrid vehicle design. How to balance the driving experience and the economic indicators of the vehicle has been perplexing various hybrid bus manufacturers....

AI Technical Summary

Problems solved by technology

Although this patent can reduce fuel consumption to a certain extent, this patent can only reduce fuel consumption when the difference between the preset air-conditioning temperature and the outdoor temperature is relatively small, and the patent cannot reduce its fuel consumption

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