Device for performing energy management in an electric vehicle

摘要

A device for performing energy management in an electric vehicle which can be driven at least partially by an electric machine which can be supplied with electrical energy by a rechargeable battery, wherein the state of charge (SOC) of the rechargeable battery varies during charging and discharging, includes a driver-type recognition device for determining the driver-type (I, II). The driver-type recognition device monitors the discharge process of the rechargeable battery during driving and recognizes the driver-type (I, II) therefrom.

主权项

1. A device for performing energy management in an electric vehicle, wherein the electric vehicle comprises an electric machine for at least partially driving the vehicle and a rechargeable battery supplying electrical power to the electrical machine, the device comprising:
a measuring device configured to measure a temporal course of a state of charge (SOC) of the rechargeable battery, wherein the state of charge (SOC) of the rechargeable battery varies during a charge process and a discharge process and is correlated with the battery voltage, the measuring device measuring at least one of a magnitude, a duration and a number of brief voltage drops occurring in the temporal course of the battery voltage during the discharge process of the rechargeable battery as a result of high power demands from a driver during a driving interval; an evaluation device comparing the at least one magnitude, duration and number of the voltage drops measured by the measuring device with threshold values stored in the evaluation device; and a driver-type recognition device determining a driver-type based on the comparison.