Endurance mileage estimation method and device

Abstract

The invention relates to the endurance mileage estimation technology of a new energy vehicle, in particular to an endurance mileage estimation method and device and a computer readable storage medium.The endurance mileage estimation method provided by the invention comprises the following steps: looking up a table according to the model and the state of charge of a power battery and the working condition of a vehicle to obtain empirical estimated value; calculating an average estimated value according to the state of charge and the long-distance average energy consumption of the vehicle; calculating an instantaneous estimated value according to the state of charge and the short-distance instantaneous energy consumption of the vehicle; and performing weighted summation on the empirical estimated value, the average estimated value and the instantaneous estimated value according to the accuracy requirement and the stability requirement for the endurance mileage to obtain the estimated endurance mileage. According to the method and the device, the endurance mileage reading is kept stable while the endurance mileage estimation accuracy is considered, so that the subjective feeling of auser is improved, and the mileage anxiety of the user is reduced.

Description

technical field [0001] The present invention relates to cruising range estimation technology of new energy vehicles, in particular to a cruising range estimation method, an estimation device for implementing the estimation method, and a computer-readable storage medium for storing the estimation method. Background technique [0002] With the popularity of new energy vehicles, users are gradually paying more attention to the mileage of vehicles. Correspondingly, the user's demand for the accuracy of mileage estimation will also increase. [0003] At present, the methods for estimating the cruising range of the models on the market mainly include the table look-up method and the power consumption method. These two algorithms will be introduced separately below. [0004] The table look-up method is currently used by most commercial models. The main algorithm logic is to look up the table according to the state of charge (State of Charge, SOC) of the power battery, and then ac...

AI Technical Summary

Problems solved by technology

The disadvantage of the power consumption method is that the algorithm is complex and the estimated cruising range fluctuates greatly, which leads to poor subjective experience of users and easily causes user anxiety

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