Power system energy management method and device, equipment and medium

Abstract

The invention discloses a power system energy management method and device, equipment and a medium, and the method comprises the steps: generating road spectrum information with different road segments according to map information, obtaining the vehicle speed of each road segment according to driving state information and the road spectrum information, and calculating the target torque informationand target power information of each road segment based on the vehicle speed; based on the target torque information, the target power information and the vehicle efficiency related information, calculating a minimum loss value of a driving system and a minimum loss value of charging and discharging, and optimizing output torque and power distribution to obtain vehicle output torque, power of a power battery and power of a range extender. According to the method, the road sections of the front road are divided in advance by introducing information such as terrain and traffic conditions in mapdata, so that the working mode and power of a power system are controlled, and the energy utilization efficiency is the highest.

Description

technical field [0001] The invention relates to the field of energy management, in particular to a power system energy management method, device, equipment and medium. Background technique [0002] Electric vehicles are considered to be the new energy vehicles with the greatest potential to solve the energy crisis and environmental pollution. However, pure electric vehicles have range anxiety problems such as short driving range and long charging time. The emergence of hybrid vehicles effectively solves the problem of range anxiety. [0003] Compared with traditional internal combustion engine vehicles, hybrid vehicles are more flexible in meeting the power requirements of the vehicle due to the matching of multi-power source energy coupling systems. In order to reasonably manage the multi-power source energy coupling system, by setting the energy management control strategy to distribute the power or torque of the multi-power source, and to coordinate the mechanical braking...

AI Technical Summary

Problems solved by technology

The methods proposed in the prior art only perform energy control in combination with the operating conditions of the vehicle itself. Therefore, when the external conditions affect the power of the vehicle, the methods in the prior art cannot cope well with the external conditions and perform dynamic adjustment of energy management.

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