soc display device for hybrid vehicle

Abstract

The present invention relates to an SOC display device for a hybrid vehicle. Provided is an SOC display device for a hybrid vehicle capable of intuitively grasping changes in driving modes corresponding to changes in SOC and transitions in SOC in each driving mode. The SOC display device of a hybrid vehicle having an EV running mode and an HV running mode is constituted as follows: each mode SOC display device (420) has an indicator display that changes with the increase or decrease of the SOC within a predetermined display range, each One end and the other end of the display range of the mode SOC display device correspond to the upper limit value of the SOC range used in the EV driving mode and the EV→HV automatic switching line in the EV driving mode, and correspond to the HV driving mode in the HV driving mode. →The EV automatic return line and the lower limit value of the SOC range used in the HV driving mode.

Description

technical field [0001] The present invention relates to an SOC display device for displaying the SOC of a hybrid vehicle having an EV running mode, and more particularly to an SOC capable of intuitively grasping a change of the driving mode corresponding to a change in the SOC and a transition of the SOC in each driving mode display device. Background technique [0002] An engine-electric hybrid vehicle (HV) has an engine and a motor generator as power sources for driving, and uses electric power generated and charged to a battery when using regenerative brakes, etc., to perform motor assist during acceleration, etc. [0003] In recent years, such hybrid vehicles have been given the function of being charged from an external power source such as a household power source or a commercial power source, and the availability of an electric vehicle (EV) driving mode that can run using only a motor generator without an engine has been expanded. Plug-in hybrid vehicles (PHEV) in th...

AI Technical Summary

Problems solved by technology

[0015] However, in the above-mentioned conventional technology, although the current SOC can be grasped, when the SOC is restored by charging by regenerative power generation during driving in the HV driving mode, the driver is not prompted when to return to the EV driving mode again. information, it is impossible to predict the switching of the driving mode

[0016] In addition, in the HV driving mode, charge and discharge are generally repeated within a relatively narrow SOC range compared with the EV driving mode, but in the above-mentioned prior art, the SOC is often displayed on a scale capable of displaying the entire SOC range, so Even when charging and discharging in the HV driving mode, the display changes only slightly within a narrow range, making it difficult for the driver to grasp the SOC transition

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