Method for enabling automobile meter needle to point zero through inertia

A technology of automobile instrument and pointer, which is applied in the field of zeroing of automobile instrument pointer, can solve the problem of adding hardware circuit settings, and achieve the effect of avoiding bouncing action

Active Publication Date: 2013-10-09
AEROSPACE HI TECH HLDG GROUP
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an inertial zeroing method for automobile instrument pointers to s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for enabling automobile meter needle to point zero through inertia
  • Method for enabling automobile meter needle to point zero through inertia

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific implementation mode one: the following combination figure 1 This embodiment will be specifically described. This embodiment comprises the following steps: 1. Power on the stepper motor that drives the pointer of the automobile meter; at the same time, set the number n of reverse pulse signals in the register to be 0; 2. The stepper motor driver applies a reverse pulse signal to the stepper motor The pulse signal makes the pointer of the automobile instrument move a step to the origin of the automobile instrument, and makes n increase by 1; 3. The single-chip microcomputer judges whether the number of reverse pulse signals n applied by the stepper motor driver to the stepper motor is equal to N; N is equal to 9. The stepping motor in the present invention selects the Delta instrument panel motor of the SA20S36F-007A model, and the stepping angle of the motor is 10 degrees ± 0.5 degrees. This type of stepping motor has 2 sets of upper and lower claw stages, each...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for enabling an automobile meter needle to point zero through inertia. The method aims to solve the problem that in an existing mode for enabling an automobile meter needle to return to the original point, a hardware circuit is added. The method comprises the following steps of (1) electrifying a stepping motor driving the automobile meter needle and setting the number n of reverse pulse signals in a register to be 0, (2) exerting a reverse pulse signal to the stepping motor through a stepping motor driver to enable the automobile meter needle to move a step towards the original point of the automobile meter needle and enabling n to be 1, (3) judging if the number n of the reverse pulse signals exerted to the stepping motor by the stepping motor driver is equal to N through a single chip microcomputer, and (4) executing the step (2) if the result of the step (3) is 'no', and ending the steps if the result of the step (3) is 'yes'.

Description

technical field [0001] The invention relates to a zero-returning method for an automobile meter pointer. Background technique [0002] The current car instrument pointers are all driven by stepper motors. The electrical parameters corresponding to the performance data of the car are expressed on the instrument panel by outputting electric pulses to the stepping motor, and the instrument pointer is driven by the stepping motor. When the power supply of the car meter is cut off, such as turning off the car engine, replacing the battery, etc., the pointer of the car meter will lose the starting position of the origin, and the origin return operation is required. [0003] The rotation of the stepper motor runs step by step at a fixed angle (called "step angle"), and is widely used in various open-loop controls. The operation of the stepper motor requires an electronic device to drive. This device is the stepper motor driver, which converts the pulse signal sent by the control ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01D3/06
Inventor 胡杨薛永刚王大钊邓雷佟大龙
Owner AEROSPACE HI TECH HLDG GROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap