Generation method and device for displaying endurance during charging and vehicle control unit

Abstract

The embodiment of the invention provides a generation method and device for displaying endurance during charging and a vehicle control unit. The method comprises the following steps: according to an acquired announced driving range and an announced battery electric quantity, determining a theoretical display endurance when a battery is charged to a full charge state under the condition that the health state of the battery is not attenuated; according to the difference value between the theoretical endurance corresponding to the charge state during gun insertion charging and the display endurance during gun insertion charging and the difference value between the full charge state and the charge state during gun insertion charging, the charge state value when the display endurance is equal to the theoretical endurance is jointly confirmed; according to the difference value between the charge state value and the current actual charge state value and the difference value between the theoretical endurance corresponding to the charge state value and the current display endurance, the display endurance added value is determined when the charge state is changed by a set value every time; and the sum of the display endurance during gun insertion and the display endurance increase value is the display endurance after the charge state changes. The method improves the accuracy and rationality of the display endurance change during automobile charging.

Description

【Technical field】 [0001] The invention relates to the technical field of automobiles, in particular to a method and device for generating battery life displayed during charging, and a vehicle controller. 【Background technique】 [0002] With the increasing problems of energy shortage and environmental pollution, automobile manufacturers around the world have released their own new energy vehicle research and development plans to solve the problems of energy shortage and environmental pollution. At present, new energy vehicles have been applied on a large scale. Among them, pure electric vehicles rely on the characteristics of zero emission and low cost of use, and are more and more accepted by consumers, and gradually enter the logistics industry, public service industry and ordinary people's homes. [0003] Electric vehicles tend to be more powerful, and the difference in energy consumption caused by differences in driving behavior is also relatively large. Some electric ve...

AI Technical Summary

Problems solved by technology

Some electric vehicles use an algorithm that shows the same battery life each time they are fully charged, and the battery life is displayed quickly to catch up with the real battery life when the charging is over. During charging, the battery life is too fast to catch up with the theoretical battery life. The large difference in energy consumption leads to a rapid decline in battery life, and the user experience is poor

Images