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Drive control method for hybrid vehicle

A technology of hybrid electric vehicle and control method, which is applied to hybrid electric vehicles, engine-driven traction, motor vehicles, etc., can solve the problems of fuel efficiency reduction and load increase, and achieve the effect of improving fuel efficiency and ensuring charging capacity

Active Publication Date: 2015-01-14
HYUNDAI MOTOR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the engine alternates between starting and stopping too frequently, its fuel efficiency decreases and the load on the overall system increases

Method used

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  • Drive control method for hybrid vehicle
  • Drive control method for hybrid vehicle
  • Drive control method for hybrid vehicle

Examples

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Embodiment Construction

[0030] Hereinafter, a driving control method for a hybrid vehicle according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0031] figure 1 is a block diagram of a driving control method for a hybrid vehicle according to an embodiment of the present invention. figure 2 is a view showing a driving mode of a driving control method according to an embodiment of the present invention. image 3 is another block diagram of the driving control method according to the embodiment of the present invention.

[0032] The driving control method according to the present invention has SOC ranges including high SOC range / normal SOC range / low SOC range and target engine torques corresponding to the respective SOC ranges. The driving control method calculates a target engine torque based on the current SOC. If the current SOC is above a predetermined range, the target engine torque is decreased. If the current SO...

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Abstract

The invention discloses a drive control method for a hybrid vehicle. The drive control method has SOC (state of charge-charge state) areas which include a high SOC range, a normal SOC range and a low SOC range, and the respective target engine torque corresponding to each SOC area. The drive control method comprises: calculating a target engine torque based on a current SOC; reducing the target engine torque, if the current SOC is greater than a predetermined range; and enhancing the target engine torque, if the current SOC is lower than the predetermined range.

Description

technical field [0001] The present invention relates to a driving control method for a hybrid vehicle, which implements variable SOC control of the hybrid vehicle using the vehicle speed and the gradient of the driving road, thereby making the energy utilization performance of the vehicle more active, intelligent and efficient, thereby further enhancing the vehicle fuel efficiency. Background technique [0002] In a parallel hybrid vehicle, the engine clutch is arranged between the engine and the drive motor. Therefore, it is easy to control the transmission of power from the engine to the wheels. In particular, parallel hybrids are characterized in that when the vehicle decelerates, it enters a regenerative braking mode in such a way that the engine is stopped and the engine clutch is disengaged so that braking energy is directly absorbed by the electric motor. [0003] The term SOC (state of charge) refers to the state of charge of a high voltage battery, in other words,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W30/18B60W40/105B60W40/076B60L7/10B60L50/16
CPCB60W10/06B60W10/26B60W2710/0666B60W2710/244B60W20/13B60W10/24B60W20/00
Inventor 崔榕珏申东准韩勋朴逸权
Owner HYUNDAI MOTOR CO LTD
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