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A method and system for determining the sideslip angle of the center of mass of a vehicle

A center-of-mass sideslip angle and vehicle technology, which is applied to control devices and other directions, can solve the problems of inability to accurately estimate the center-of-mass sideslip angle of vehicles and low estimation efficiency

Active Publication Date: 2021-03-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

That is, in the prior art, the sideslip angle of the center of mass of the vehicle cannot be accurately estimated, and the estimation method used in the prior art still has the problem of low estimation efficiency

Method used

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  • A method and system for determining the sideslip angle of the center of mass of a vehicle
  • A method and system for determining the sideslip angle of the center of mass of a vehicle
  • A method and system for determining the sideslip angle of the center of mass of a vehicle

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] The purpose of the present invention is to provide a method and system for determining the sideslip angle of the center of mass of the vehicle, which can obtain the value of the sideslip angle of the center of mass of the vehicle more accurately while improving the efficiency of determining the sideslip angle of the center of mass of the vehicle.

[0063] In order to make the above objects, features and advantages of the present invention more comprehens...

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Abstract

The invention provides a method and system for determining a side slip angle of a vehicle. The method includes the steps: constructing a state model; adopting an unscented Kalman particle filtering algorithm; according to the state model, determining a state average value under the set particle number at different moments; and using the state average to determine the longitudinal speed and the lateral speed of the vehicle to be determined at different moments, and determining the value of the side slip angle of the vehicle to be determined according to the longitudinal speed and the lateral speed, so that the value of the side slip angle of the vehicle can be obtained more accurately while the determination efficiency of the side slip angle of the vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle data prediction, in particular to a method and system for determining the sideslip angle of the vehicle center of mass. Background technique [0002] In the process of automobile development, safety has always been the primary consideration. With the advancement of vehicle electrification, the stability control of high-performance distributed drive vehicles has become a research hotspot in the field of vehicle dynamics control. The key dynamic parameters used in the vehicle stability control system include yaw rate, longitudinal and lateral acceleration, longitudinal vehicle speed and side slip angle of the center of mass, etc. Among them, the side slip angle and yaw rate of the vehicle center of mass are very important to the vehicle stability control system. [0003] At present, in systems such as ESC, the yaw rate can be directly measured by the yaw rate sensor, but the side slip angle of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/10B60W40/13
CPCB60W40/10B60W40/13B60W2040/1315B60W2520/00B60W2520/10
Inventor 王文伟赵一凡
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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