Nonlinear braking force compensation method for giant magnetostrictive brake-by-wire system

A technology of giant magnetostriction and brake-by-wire, which is applied in the direction of brake transmission device, brake action starting device, brake, etc., which can solve the problems of hysteresis nonlinearity and achieve the effect of improving safety and reliability

Active Publication Date: 2021-07-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a nonlinear braking force compensation method for a giant magnetostrictive brake-by-wire system, to solve the problem caused by the giant magnetostrictive brake-by-wire system hysteresis non-linear problem caused by

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  • Nonlinear braking force compensation method for giant magnetostrictive brake-by-wire system
  • Nonlinear braking force compensation method for giant magnetostrictive brake-by-wire system
  • Nonlinear braking force compensation method for giant magnetostrictive brake-by-wire system

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[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0038] It should be noted that the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to expressly instead of those steps or elements listed, may include other steps or eleme...

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Abstract

The invention discloses a non-linear braking force compensation method of a giant magnetostrictive brake-by-wire system, which is suitable for a vehicle using a giant magnetostrictive material as a driving source, and comprises the following steps: predicting the depth of treading a brake pedal by a driver at the next moment according to a current braking parameter; according to the depth of the brake pedal, obtaining an ideal braking force during braking through calculation; using the hysteresis characteristic parameters of the giant magnetostrictive material and the depth of the brake pedal as input of a neural network, and predicting the nonlinear braking force; performing nonlinear compensation on the ideal braking force by using double coils of the giant magnetostrictive brake-by-wire system, so that the brake achieves ideal braking. The nonlinear braking force is predicted by utilizing the neural network and is compensated into ideal braking force through double coils, so that the compensation of the nonlinear braking force in the giant magnetostrictive brake-by-wire system is changed in real time, the ideal braking force is reached at any time, the brake can be quickly responded, and the safety and reliability of the brake system are improved.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to a nonlinear braking force compensation method of a giant magnetostrictive wire-controlled braking system. Background technique [0002] The popularity of automobiles has enabled more people to enjoy the convenience and benefits brought about by the upgrading of transportation tools. In recent years, with the development of society, the concept of global energy conservation and environmental protection has become popular among the people and the strong support of national policies, the application of environmentally friendly energy has become more and more extensive. Cars have gradually become the development trend of the automotive industry. [0003] Electrification, wire control, and energy saving are irreversible trends in the development of automotive braking systems, which will completely change the way people live and travel, and will also make great contributions...

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Application Information

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IPC IPC(8): B60T13/74B60T7/04
CPCB60T13/74B60T7/042
Inventor 朱耀鎏曹铭纯于博洋孟琦康齐前锦张自宇周小川王春燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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