车辆的侧倾控制装置

By installing active suspension and stabilizers on the front and rear axles of the vehicle, and using a controller to adjust the control amount according to the lateral acceleration, the problem of uneven distribution of roll stiffness when the vehicle is turning is solved, and stable handling of the vehicle is achieved near the limit zone.

CN115891976BActive Publication Date: 2026-07-17TOYOTA JIDOSHA KK
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Patent Information

Application Number
CN202211094136.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-09-30
Filing Date
2022-09-08
Publication Date
2026-07-17
Estimated Expiration
2042-09-08

AI Technical Summary

Technical Problem

In the prior art, the uneven distribution of roll stiffness when a vehicle is turning can lead to oversteer or understeer near the limits, especially when the front and rear axles are equipped with active stabilizers, either individually or simultaneously. In such cases, the roll stiffness distribution is more likely to be biased to one side, resulting in unstable vehicle behavior.

Method used

By installing a pair of active suspensions or suspensions and active stabilizers on the front and rear axles of the vehicle, respectively, the controller adjusts the control amount of each suspension and stabilizer according to the change of lateral acceleration, thereby increasing or decreasing the roll stiffness to maintain a balance in the roll stiffness distribution.

Benefits of technology

It effectively suppresses unstable behavior caused by uneven distribution of roll stiffness when the vehicle is turning, improves the vehicle's handling stability near the limit zone, and avoids oversteer or understeer.

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Abstract

本发明涉及车辆的侧倾控制装置,在侧倾刚度分配根据侧倾状态而变化的车辆中抑制车辆的举动在界限区附近变得不稳定。车辆的侧倾控制装置具备:左右一对主动悬架,以反相对于车辆的后轴的左右的车轮赋予上下方向的力;和控制器,控制主动悬架。控制器根据作用于车辆的横向加速度的增大来使主动悬架的控制量增大以使后轴的侧倾刚度增大。而且,在横向加速度超过低加速度区而增大至高加速度区的情况下,控制器根据横向加速度的增大来使主动悬架的控制量相对于横向加速度的增益降低。
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Citation Information

Patent Citations

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    JP2008137446A

  • Steering device

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  • Vehicle active suspension system

    JP2874427B2