Method for improving comfort under high-voltage fast charging, control system and method and automobile

Abstract

The invention discloses a method for improving comfort under high-voltage fast charging, a control system, a method and an automobile, and the method comprises the steps: monitoring the temperature of a battery and the temperature of a passenger compartment in real time, and controlling the charging current of the battery and an air conditioning system according to the temperature of the battery and the temperature of the passenger compartment to ensure that the temperature of the passenger compartment is within a set temperature range; and the influence on the charging time of the battery is reduced. The method is simple in logic, the whole vehicle does not need additional hardware, judgment is carried out through software logic, the battery temperature is monitored at the same time, and the overheating risk caused by the fact that the battery temperature exceeds the standard is avoided; meanwhile, in the vehicle development stage, through logic joint debugging of a vehicle control unit and a heat management controller, under the high-pressure fast charging working condition and when an air conditioner of a passenger compartment is started, the comfort of the passenger compartment is guaranteed through logic, and customer complaints caused by reduction of the comfort of the passenger compartment are avoided.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a method for improving comfort under high-voltage fast charging, a control system and method, and a vehicle. Background technique [0002] With the national policy guidance and breakthroughs in pure electric vehicle technology, the popularity of pure electric vehicles in China has gradually increased, and pure electric vehicles have entered thousands of households; however, the charging time of pure electric vehicles has always been a pain point that affects user experience. , Different companies have given different solutions. In order to reduce the charging time, Tesla has developed a "super charging pile". The charging pile increases the charging current to shorten the charging time. Domestic auto companies are limited by the charging pile technology Ability, by increasing the voltage platform and increasing the charging voltage to shorten the charging time, the volt...

AI Technical Summary

Problems solved by technology

However, the above-mentioned thermal management method has the following problems: when the power battery and the passenger compartment need to be heated or cooled at the same time in the above-mentioned thermal management method, the thermal management controller only controls the thermal management components to meet the needs of the power battery and the passenger compartment for heating or cooling. Cooling requirements, so that in order to meet the simultaneous heating or cooling requirements of the power battery and the passenger compartment, the power selection of thermal management components must be increased, which will greatly increase the use cost of thermal management components on electric vehicles on the one hand, and on the other hand When the power battery and the passenger compartment do not need to be heated or cooled at the same time, the actual working power of the thermal management component will be much lower than the rated working power, and then there will be a large horse and a small cart, reducing the efficiency of the thermal management component when it is working

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