Electric vehicle driving support system

Abstract

An electric vehicle driving support system includes an acquisition unit that acquires predictive information of traffic congestion calculated based on acceleration of an electric vehicle and an economical driving mode output unit that outputs a control instruction to prioritize speed maintenance or acceleration when the predictive information of traffic congestion acquired by the acquisition unit indicates a non-congestion tendency, and that outputs a control instruction to prioritize deceleration when the predictive information of traffic congestion indicates a congestion tendency.

Description

technical field [0001] The invention relates to an electric vehicle driving assistance system. Background technique [0002] In the prior art, there is a driving assistance device that urges the driver to take actions to reduce fuel consumption based on the accelerator pedal operation cycle and traffic jam symptom information (for example, refer to Japanese Patent Application No. 2011-088567). [0003] In addition, there is such a control device in the prior art: it is equipped on a hybrid vehicle, since the hybrid vehicle generates regenerative power when driving downhill, and the battery is charged by the regenerative power. When the vehicle is on a slope, the above-mentioned control device presets the allowable upper limit of the discharge capacity of the battery based on the amount of charge during the downhill process, and controls the vehicle so that the remaining power of the battery reaches the minimum value when the vehicle reaches the maximum height point of the dr...

AI Technical Summary

Problems solved by technology

[0005] However, in the driving assistance device of the above-mentioned prior art, the driving assistance (control) is performed only in consideration of the fuel consumption that changes according to the frequency characteristic of the accelerator pedal operation, and does not take into account the situation of an electric vehicle capable of regenerative power generation. , for electric vehicles capable of regenerative power generation, it is necessary to have a control method that can comprehensively consider energy consumption and recovery

[0006] In addition, in the control device of the above-mentioned prior art, the charging of the storage battery is only considered in consideration of the regenerative power generation when the vehicle goes downhill, and the energy consumption and recovery in traffic jams are not taken into account. Therefore, there is a need for a comprehensive Consider how energy consumption and recovery are controlled

[0007] In addition, in the charging control device of the above-mentioned prior art, only electric power is preferentially used to drive the vehicle when there is a traffic jam, so there is a need for a control method that can comprehensively consider energy consumption and recovery

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