Air conditioning control method and system for pure electric vehicle and pure electric vehicle

Abstract

The invention provides an air conditioner control method and system of a blade electric vehicle and the blade electric vehicle. The method comprises the steps that when an air conditioner operating request is received, the operating state of an air conditioner is adjusted according to the whole vehicle insulation resistance, the SOC of a power battery and the opening degree of an accelerator pedal, and when the SOC is larger than a first threshold value, the whole vehicle insulation resistance is larger than a second threshold value, and the opening degree of the accelerator pedal is smaller than or equal to a preset opening degree, the air conditioner is controlled to operate in a normal operating manner; when the SOC is larger than a third threshold value and smaller than or equal to the first threshold value, the whole vehicle insulation resistance is larger than a fourth threshold value, or the opening degree of the accelerator pedal is larger than the preset opening degree, and the whole vehicle insulating resistance is larger than the fourth threshold value, the air conditioner is controlled to operate in a power limiting operating manner; and when the SOC is smaller than or equal to the third threshold value or the whole vehicle insulation resistance is smaller than or equal to the fourth threshold value, the air conditioner is forbidden from operating. According to the method, vehicle energy saving and the taking comfort for passengers can be balanced and optimized well, and the service life of the power battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to an air conditioning control method and system for a pure electric vehicle and the pure electric vehicle. Background technique [0002] With the development of the new energy vehicle market, the requirements for pure electric vehicles in terms of cruising range and ride comfort are getting higher and higher. Air conditioners are the main power consumption devices of pure electric vehicles, accounting for about one-third of the electricity consumption of the whole vehicle. one. The traditional control method is mainly considered from the perspective of the air conditioner itself, and only uses the temperature inside the vehicle as the benchmark for adjusting the operating state of the air conditioner, which affects the mileage of the vehicle when improving comfort. In order to have enough electric energy to drive the car to the destination when the battery power o...

AI Technical Summary

Problems solved by technology

Traditional automotive air-conditioning control is basically independent control, and there is no information exchange with the vehicle control system, or even if the air-conditioning controller communicates with the vehicle controller, it has not established a relationship with the accelerator pedal opening, the SOC state of the power battery, The control logic related to the insulation resistance of the whole vehicle makes it impossible to achieve a balanced optimization of energy saving, comfort and prolonging the life of the power battery

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