Driving control method for a hybrid vehicle

Abstract

The present invention discloses a driving control method for a hybrid vehicle, which has a state of charge (SOC) range including a high SOC range, an intermediate SOC range and a low SOC range, and a plurality of power distribution strategies corresponding to each SOC range. The driving control method controls the hybrid vehicle using a power distribution strategy corresponding to the SOC range to which the current SOC of the hybrid vehicle belongs. When the speed of the hybrid vehicle is high or low and outside the predetermined range, the boundary values ​​of the middle SOC range and the low SOC range in the SOC range are increased.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2013-0075167 filed on Jun. 28, 2013 based on 35 U.S.C. §119(a), the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure relates to a driving control method for a hybrid vehicle that implements variable state of charge (SOC) control of the hybrid vehicle using vehicle speed and driving road gradient, thereby making the energy utilization performance of the vehicle more active, smarter and more efficient , thereby further improving the fuel efficiency of the vehicle. Background technique [0004] In a parallel hybrid vehicle, an engine clutch is arranged between the engine and the drive motor. Therefore, it is easy to transmit power from the engine to the wheels. Specifically, when the parallel hybrid vehicle decelerates, it enters the regenerative braking mode with the engine stopped, and th...

AI Technical Summary

Problems solved by technology

[0006] However, if the engine alternates between starting and stopping too frequently, its fuel efficiency decreases and the load applied to the overall system increases

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