CN-117473827-B - Hall effect-based shifter design method, hall effect-based shifter design equipment, storage medium and Hall effect-based shifter design device

CN117473827BCN 117473827 BCN117473827 BCN 117473827BCN-117473827-B

Abstract

The invention discloses a design method, equipment, a storage medium and a device of a gear shifter based on a Hall effect, and relates to the field of automobile design and manufacturing, wherein the method comprises the steps of acquiring the existing gear shifter and performing a test, and acquiring magnetic field intensity data of each gear in the gear shifter; the method comprises the steps of establishing a finite element model for the gear shifter, carrying out finite element simulation to obtain magnetic field intensity data of each gear in the finite element model, comparing the obtained magnetic field intensity data of the gear shifter with the magnetic field intensity data of the finite element model to verify the simulation reliability of the finite element model, carrying out gear shifter design parameter optimization based on a neural network model and the finite element model with the simulation reliability verified, and determining optimal gear shifter design parameters. The invention can improve the research and development efficiency of the gear shifter and effectively ensure the working accuracy of the gear shifter based on the Hall effect.

Inventors

LIU XIANLONG
LI JINGLIANG
CHEN RONGCHUANG
LI JINBO
WEN CHUNWEI

Assignees

东风汽车集团股份有限公司

Dates

Publication Date: 20260508
Application Date: 20231031

Claims (8)

1. The design method of the gear shifter based on the Hall effect is characterized by comprising the following steps of: acquiring and testing the existing gear shifter, and acquiring magnetic field intensity data of each gear in the gear shifter; Establishing a finite element model for the gear shifter and performing finite element simulation to obtain magnetic field intensity data of each gear in the finite element model; comparing the obtained magnetic field intensity data of the gear shifter with the magnetic field intensity data of the finite element model to verify the simulation reliability of the finite element model; Optimizing the design parameters of the gear shifter based on the neural network model and the finite element model passing the simulation reliability verification, and determining the optimal design parameters of the gear shifter; The method comprises the specific steps of optimizing design parameters of a gear shifter based on a neural network model and a finite element model with simulation reliability verification passing, and determining optimal design parameters of the gear shifter, wherein the specific steps comprise: Acquiring a finite element model passing simulation reliability verification, and adjusting the design parameters of a gear shifter of the acquired finite element model; performing finite element simulation on the adjusted finite element model to obtain a simulation result, and determining magneto-electric conversion efficiency under different gear shifter design parameters through a neural network model; comparing simulation results obtained after each finite element simulation, and determining optimal shifter design parameters; the design parameters of the gear shifter comprise a magnet shape, a magnet size and a relative position between the magnet and the magnetic sensitive chip, wherein the relative position between the magnet and the magnetic sensitive chip comprises an initial relative position between the magnet and the magnetic sensitive chip and a motion end point relative position between the magnet and the magnetic sensitive chip; Wherein the magnetic field intensity data are magnetic field intensities in x-axis, y-axis and z-axis directions in a three-dimensional coordinate system.
2. A hall effect based shifter design method as set forth in claim 1 wherein: The movement forms of the magnets in the gear shifter comprise linear movement, rotary movement and rocker movement; the shape of the magnet in the gear shifter comprises an elongated shape and a cylindrical shape.
3. A hall effect based shifter design method as set forth in claim 2 wherein: After determining the optimal shifter design parameters, further comprising, based on the determined optimal shifter design parameters, performing sample manufacturing of the shifter to provide guidance for actual production of the shifter; the shifter prototype trial production comprises the following specific steps: Determining the size of the magnet and the relative position between the magnet and the magnetosensitive chip based on the determined optimal shifter design parameters; the magnet is arranged above the magneto-sensitive chip through the bracket, and the movement range of the magnet is limited on the bracket; driving the magnet to move above the magnetic sensitive chip, and collecting magnetic field intensity data when the magnet moves to different positions through a development board connected with the magnetic sensitive chip; The magnetic field intensity data is converted into high-low level signals to represent different gear information, so that guidance is provided for actual production of the gear shifter.
4. A hall effect based shifter design method as set forth in claim 3 wherein: When the movement form of the magnet is linear movement and the shape is long, the magnet is driven to perform linear movement in a linear movement domain limited above the magnetic sensitive chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic sensitive chip; When the movement form of the magnet is rotary movement and the shape is long, the magnet is driven to perform self rotary movement in a rotary movement domain limited above the magnetic sensitive chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic sensitive chip; when the movement form of the magnet is rocker movement and the shape is long, the magnet is driven to perform circular movement in a rotation movement domain limited above the magnetic sensitive chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic sensitive chip.
5. A hall effect based shifter design method as set forth in claim 3 wherein: When the movement form of the magnet is linear movement and the shape of the magnet is cylindrical, the magnet is driven to perform linear movement in a linear movement domain limited above the magnetic sensitive chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic sensitive chip; When the movement form of the magnet is rotary movement and the shape is cylindrical, the magnet is driven to perform self rotary movement in a rotary movement domain limited above the magnetic sensitive chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic sensitive chip; When the movement form of the magnet is rocker movement and the shape is cylindrical, the magnet is driven to perform circular movement in a rotation movement domain limited above the magnetic-sensing chip, and magnetic field intensity data when the magnet moves to different positions are collected through a development board connected with the magnetic-sensing chip.
6. A hall effect based shifter design apparatus comprising a processor, a memory, and a hall effect based shifter design program stored on the memory and executable by the processor, wherein the hall effect based shifter design program, when executed by the processor, implements the steps of the hall effect based shifter design method of any one of claims 1 to 5.
7. A computer readable storage medium, having stored thereon a hall effect based shifter design program, wherein the hall effect based shifter design program, when executed by a processor, implements the steps of the hall effect based shifter design method of any one of claims 1 to 5.
8. A hall effect based shifter design apparatus, comprising: The test module is used for acquiring the existing gear shifter and performing a test, and acquiring magnetic field intensity data of each gear in the gear shifter; The simulation module is used for establishing a finite element model for the gear shifter and carrying out finite element simulation to obtain magnetic field intensity data of each gear in the finite element model; The comparison module is used for comparing the obtained magnetic field intensity data of the gear shifter with the magnetic field intensity data of the finite element model so as to verify the simulation reliability of the finite element model; the optimization module is used for optimizing the design parameters of the gear shifter based on the neural network model and the finite element model with the simulation reliability verified, and determining the optimal design parameters of the gear shifter; The method comprises the specific steps of optimizing design parameters of a gear shifter based on a neural network model and a finite element model with simulation reliability verification passing, and determining optimal design parameters of the gear shifter, wherein the specific steps comprise: Acquiring a finite element model passing simulation reliability verification, and adjusting the design parameters of a gear shifter of the acquired finite element model; performing finite element simulation on the adjusted finite element model to obtain a simulation result, and determining magneto-electric conversion efficiency under different gear shifter design parameters through a neural network model; comparing simulation results obtained after each finite element simulation, and determining optimal shifter design parameters; the design parameters of the gear shifter comprise a magnet shape, a magnet size and a relative position between the magnet and the magnetic sensitive chip, wherein the relative position between the magnet and the magnetic sensitive chip comprises an initial relative position between the magnet and the magnetic sensitive chip and a motion end point relative position between the magnet and the magnetic sensitive chip; Wherein the magnetic field intensity data are magnetic field intensities in x-axis, y-axis and z-axis directions in a three-dimensional coordinate system.

Description

Hall effect-based shifter design method, hall effect-based shifter design equipment, storage medium and Hall effect-based shifter design device Technical Field The invention relates to the field of automobile design and manufacture, in particular to a Hall effect-based gear shifter design method, equipment, storage medium and device. Background Hall sensors are magnetic field sensors that are made using the hall effect, which is expressed by the fact that when a current is passed through a conductor in a magnetic field, the magnetic field produces a force on electrons in the conductor that is perpendicular to the direction of movement of the electrons, thereby producing a voltage difference across the conductor. For example, when a control current I is applied across the semiconductor sheet and a uniform magnetic field of magnetic induction B is applied in the vertical direction of the sheet, a hall voltage of potential difference U H is generated in the direction perpendicular to the current and magnetic field. According to the basic principle of the hall effect, a semiconductor material is used to form an element capable of inducing magnetic induction, which is called a hall element. Hall elements have many advantages, such as sensitivity to magnetic fields, small volume, simple structure, long service life, etc., and thus find wide application in the fields of measurement, computers, automobiles, etc. The working principle of the gear shifter based on the Hall effect is that when the magnet approaches or leaves, namely the magnetic flux changes, the Hall element can output different voltage values, and the current gear is the D gear or the M gear or other gears according to the different voltage values. Because the automatic gear shifter uses the electromagnetic triggering principle, the Hall sensor is triggered by the permanent magnet, the traditional mechanical contact type gear shifting is replaced by non-contact type control, the occurrence of part failure accidents caused by long-term mechanical abrasion is reduced, and the convenience and the use safety of gear shifting are improved. And because development and application of electric vehicles, hybrid electric vehicles and the like promote the matched use of automatic gear shifters, the stability of the operation of the gear shifters is related to the stable operation of the vehicles, so how to improve the operation accuracy of the gear shifters based on the Hall effect is a problem to be solved at present. Disclosure of Invention The application provides a design method, equipment, a storage medium and a device of a gear shifter based on a Hall effect, which can improve the research and development efficiency of the gear shifter and effectively ensure the working accuracy of the gear shifter based on the Hall effect. In a first aspect, an embodiment of the present application provides a hall effect-based shifter design method, including the following steps: acquiring and testing the existing gear shifter, and acquiring magnetic field intensity data of each gear in the gear shifter; Establishing a finite element model for the gear shifter and performing finite element simulation to obtain magnetic field intensity data of each gear in the finite element model; comparing the obtained magnetic field intensity data of the gear shifter with the magnetic field intensity data of the finite element model to verify the simulation reliability of the finite element model; And optimizing the design parameters of the gear shifter based on the neural network model and the finite element model with the simulation reliability verified, and determining the optimal design parameters of the gear shifter. With reference to the first aspect, in an implementation manner, the optimizing of the design parameters of the gear shifter based on the neural network model and the finite element model with the verification of the simulation reliability is performed, and the determining of the optimal design parameters of the gear shifter includes the specific steps: Acquiring a finite element model passing simulation reliability verification, and adjusting the design parameters of a gear shifter of the acquired finite element model; performing finite element simulation on the adjusted finite element model to obtain a simulation result, and determining magneto-electric conversion efficiency under different gear shifter design parameters through a neural network model; comparing simulation results obtained after each finite element simulation, and determining optimal shifter design parameters; the design parameters of the gear shifter comprise a magnet shape, a magnet size and a relative position between the magnet and the magnetic sensitive chip, wherein the relative position between the magnet and the magnetic sensitive chip comprises an initial relative position between the magnet and the magnetic sensitive chip and a motion end point relative position between the magnet and the