Energy management method for hybrid vehicle

Abstract

The embodiment of the invention discloses an energy management method fora hybrid vehicle. The hybrid vehicle comprises a power source and a power battery, a power generation device of the power source charges the power battery, and the method comprises the steps of acquiring the target SOC of the starting point of a charging road section and the time required for the vehicle to pass through the charging road section, wherein the charging road section is the road section where the power generation device charges the power battery; dividing the charging road section into a plurality of sections, and setting a target SOC boundary value at the end point of each section; based on the target SOC, the acquired current generated power and the required time, calculating the predicted SOC reachingeach section of end point; comparing the predicted SOC with the target SOC boundary value; and correcting the predicted SOC of the current segment according to the comparison result. The problems thatin the prior art, if an unblocked road section is shortened or the electric quantity reserve is temporarily increased, the electric quantity generated by a motor cannot meet the use requirement of asubsequent congested road section, and vehicle driving sources are reasonably selected under different road conditions are at least solved.

Description

technical field [0001] The present disclosure belongs to the technical field of hybrid vehicles, and more particularly relates to an energy management method of a hybrid vehicle. Background technique [0002] In the control strategy with predictive global energy optimization based on vehicle navigation and Internet of Vehicles technology, the vehicle controller needs to continuously receive the target SOC (battery charge) sent by the cloud and the time required for the vehicle to pass through the current smooth road section. With the change of these two quantities, the vehicle controller needs to constantly adjust the generating power of the engine and the motor. [0003] With the development of cities and the increase in the number of private cars, road traffic conditions have become more and more complex. The energy management of hybrid vehicles, as the core and difficult problem of vehicle control, has not yet been solved in the face of such complex and changeable road co...

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Problems solved by technology

[0005] In view of this, the embodiments of the present disclosure provide an energy management method for hybrid vehicles, which at least solves the problem in the prior art that if the smooth road section is shortened or the power reserve is temporarily increased, the power generated by the motor cannot meet the subsequent use of the congested road section. Reasonable selection of vehicle driving source under road conditions

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