Small electric vehicle

JP2025134328APending Publication Date: 2025-09-17DENSO CORP
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Patent Information

Application Number
JP2024032172
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-04
Publication Date
2025-09-17

AI Technical Summary

Technical Problem

Small electric vehicles face issues with wheel speed difference control when navigating curves, leading to potential swaying or deviation from the target trajectory due to inappropriate setting of rotational speed differences between left and right drive wheels.

Method used

Implementing a system where the rotational speed difference between the left and right drive wheels is variable based on vehicle speed, using gains to adjust the speed difference in wheel speed difference control, ensuring appropriate setting of the rotational speed difference to improve trajectory following.

Benefits of technology

Enhances the vehicle's ability to maintain the target trajectory by appropriately setting the rotational speed difference between wheels, reducing swaying and deviation during curve navigation, especially at varying speeds and loads.

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Abstract

To properly set a difference between a rotational speed of a driving wheel on a left side and a rotational speed of a driving wheel on a right side in a small electric vehicle for executing wheel speed difference control during curve traveling.SOLUTION: A small electric vehicle (10) includes: a driving wheel (12) on a left side; and a driving wheel (12) on a right side. The small electric vehicle executes wheel speed difference control to generate a rotational speed difference between a rotational speed of the driving wheel on the left side and a rotational speed of the driving wheel on the right side during curve traveling. In the small electric vehicle, a parameter for setting the rotational speed difference in the wheel speed difference control is made variable according to vehicle speed of the small electric vehicle.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

  • Traveling vehicle and travel control method thereof

    JP2011093676A