Vehicle side-turning-preventing method and device, storage medium and vehicle

An anti-rollover and vehicle technology, applied in signal devices, control devices, vehicle components, etc., can solve problems such as ignoring and affecting the accuracy of early warning, and achieve the effect of precise status indication and high accuracy of early warning

Active Publication Date: 2018-06-01
GREE ELECTRIC APPLIANCES INC
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  • Description
  • Claims
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Problems solved by technology

[0006] The main purpose of the present invention is to overcome the defects of the above-mentioned prior art, and provide a vehicle anti-rollover early warning method, device, storage medium and vehicle, to solve the problems of the prior art due to neglect of the centrifugal force rollover moment of the sprung mass. The problem of the accuracy of early warning

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  • Vehicle side-turning-preventing method and device, storage medium and vehicle
  • Vehicle side-turning-preventing method and device, storage medium and vehicle
  • Vehicle side-turning-preventing method and device, storage medium and vehicle

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Embodiment approach

[0062] According to an implementation manner of the vehicle anti-rollover warning method of the present invention, the vehicle body roll state parameters include a vehicle body roll angle and a roll angle rate. Based on the requirements of the load transfer rate threshold model provided by the technical solution of the present invention, some key parameters and variables are needed, wherein the parameters include the vehicle's sprung mass, unsprung mass, vertical distance from the center of mass to the center of roll, and the distance from the center of roll to the ground. Distance, Vehicle Wheelbase, Suspension Combined Roll Stiffness and Combined Damping Coefficient; while variables only require Roll Angle and Roll Velocity.

[0063] According to an embodiment of the vehicle anti-rollover early warning method of the present invention, judging whether the vehicle is in danger of rollover according to the calculated lateral load transfer rate and the preset rollover threshold i...

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Abstract

The invention provides a vehicle side-turning-preventing method and device, a storage medium and a vehicle. The vehicle side-turning-preventing method comprises the steps that the vehicle body side turning state parameters are collected; according to the collected vehicle body side turning state parameters and the preset load transferring rate threshold value model of centrifugal force side turning torque comprising sprung mass, the transverse load transferring rate of the vehicle is calculated; according to the calculated transverse load transferring rate and the preset side turning thresholdvalue, whether the side turning risk occurs to the vehicle is judged. According to the provided technical scheme, the load transferring rate threshold value model of the centrifugal force side turning torque based on the sprung mass is closer to the real vehicle side turning state, the state indication function is more accurate, and the early warning accuracy is high.

Description

technical field [0001] The invention relates to the field of smart cars, in particular to a vehicle anti-rollover early warning method, device, storage medium and vehicle. Background technique [0002] Vehicle rollover is a serious road traffic accident. Rollover accidents are more likely to occur for vans with a high center of mass. With the demand for load, there are more and more multi-axle vans. When maneuvering on roads, etc., rollover accidents are very likely to occur. [0003] The study of rollover is inseparable from the study of rollover threshold or rollover index. The prior art mainly uses the three rollover thresholds of roll angle, lateral acceleration and lateral load transfer rate LTR to study the rollover problem. The rollover index is used to describe the judging standard of whether the vehicle rollover occurs, and its determination has a direct impact on the quality of the vehicle rollover early warning algorithm. [0004] The early warning scheme uses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/14B60W40/10B60W40/13G07C5/08
CPCG07C5/0808G07C5/0825G07C5/0833B60W40/10B60W40/13B60W50/14B60W2050/143B60W2050/146B60W2030/043B60W2520/18B60W2050/0031B60W2530/10B60W30/04B60W40/112B60K35/00B60K2370/152B60K2370/1575B60K2370/167B60K2370/178B60Q9/008B60W2300/10B60W2300/12B60W2510/222
Inventor 魏恒张有林宋爱程海松
Owner GREE ELECTRIC APPLIANCES INC
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