A Method for Estimating the Remaining Power of Traction Batteries of Fixed-line Electric Vehicles
A technology for electric vehicles and remaining power, applied in the measurement of electrical variables, measurement of electricity, and measurement devices, etc., can solve the problems of large SOC estimation errors, inability to obtain a large number of applications, errors in the correspondence between power and capacity, etc. The effect of eliminating sources of errors, accurate estimation results, and simple estimation methods
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[0022] Such as figure 1 As shown, the method for estimating the remaining power of the fixed-line electric vehicle power battery of the present invention includes:
[0023] 1. Calibration of working condition capacity C00. Since the routes of electric buses such as buses and commuter buses are fixed and the working conditions are stable, the relationship between working condition capacity C00 and rated capacity C0 can be calibrated with experimental vehicles. K00=(C00 / C0) is called the working condition coefficient.
[0024] 2. Calibration of the change of working condition mileage M10n and working condition capacity C00. Due to the fixed routes and stable working conditions of electric passenger cars such as buses and commuter buses, experimental vehicles can be used to calibrate the corresponding relationship between every 10% M10n and the capacity change C10n of working conditions.
[0025] 3. SOH calibration method for battery health status. Since the routes of electric ...
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