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A fast cornering control method based on independent epb

A control method and independent technology, applied in the field of vehicle control, can solve the problems of high risk, unstable vehicle rotation, and inability to control freely, and achieve the effect of improving safety

Active Publication Date: 2022-07-19
CHANGZHOU INST OF MECHATRONIC TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even a skilled driver cannot control an unfamiliar vehicle freely, and if the operation is excessive, it is easy to cause the vehicle to rotate unstable, which is extremely dangerous

Method used

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  • A fast cornering control method based on independent epb
  • A fast cornering control method based on independent epb
  • A fast cornering control method based on independent epb

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Embodiment Construction

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] see figure 1 Describe this embodiment, a kind of fast cornering control method based on independent EPB, it comprises the following steps:

[0027] Step 1: Calculate the turning angle of the wheel, and combine the wheel speed signal and the yaw rate to estimate the lateral acceleration of the vehicle;

[0028] Step 2: Check the estimated lateral acceleration and lateral acceleration of the vehicle with each other to obtain the actual lateral acceleration;

[0029] Step 3: Calculate the load transfer amount of the rear wheels by using the actual lateral acceleration, and obtain the left and right rear wheel loads of the vehicle;

[0030] Step 4: Calculate the side-slip angle of the center of mass on the basis of estimating the lateral acceleration, and calcula...

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Abstract

The invention provides a fast cornering control method based on an independent EPB, which belongs to the field of vehicle control. It solves the problem that the existing vehicle has a high risk factor when cornering quickly. It includes calculating the turning angle of the wheel, estimating the lateral acceleration of the vehicle in combination with the wheel speed signal and the yaw angular velocity; verifying the estimated lateral acceleration and lateral acceleration of the vehicle to obtain the actual lateral acceleration; calculating the load transfer amount of the rear wheels to obtain The left and right rear wheel loads of the vehicle; the center of mass slip angle is calculated, combined with the longitudinal acceleration, the rear wheel slip angle is calculated; the rear wheel adhesion ellipse model is established according to the rear wheel slip angle and the left and right rear wheel loads, and the lateral adhesion of the rear tire is calculated. The limit value of the force; the independent EPB applies different longitudinal braking forces to the corresponding wheels, so that the left and right wheels can completely overcome the maximum lateral force provided by the road surface, so that the lateral slip rates of the left and right wheels are at the same level. It is mainly used for fast cornering of vehicles.

Description

technical field [0001] The invention belongs to the field of vehicle control, in particular to a fast cornering control method based on an independent EPB. Background technique [0002] With the gradual understanding of car performance, the car racing culture has become more and more familiar, and many non-professional racing personnel have also been produced. When racing on the aisle, when to step on the brakes and when to pull the handbrake, this requires the racing driver to have a lot of experience and long-term training to accurately judge. Even a skilled driver cannot control an unfamiliar vehicle freely, and if the operation is excessive, it is easy to cause the vehicle to rotate unsteadily, which is extremely dangerous. SUMMARY OF THE INVENTION [0003] In order to solve the problems in the prior art, the present invention proposes a fast cornering control method based on an independent EPB. [0004] To achieve the above object, the present invention adopts the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/045
CPCB60W30/045B60W2520/10B60W2520/105B60W2520/125B60W2520/20B60W2510/20
Inventor 卞荣花宋高祥汪明朋
Owner CHANGZHOU INST OF MECHATRONIC TECH
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