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Steering engine control device

A technology of control devices and steering gears, applied in computer control, program control, general control systems, etc., can solve the problems of low efficiency, occupation of timers and interrupt resources, etc., and achieve the effect of increasing the burden

Inactive Publication Date: 2014-06-18
SUZHOU IND PRAK NEW HONGBO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual way to control the steering gear is to use the timer resource of the single chip microcomputer, but this method not only takes up valuable timer and interrupt resources, but also requires more central processing unit (CPU) to participate, and the efficiency is not high

Method used

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Embodiment Construction

[0010] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0011] The steering gear control device of the present invention includes a single-chip microcomputer with a programmable counter array (PCA), so that the steering gear is controlled by outputting a pulse width modulation signal (PWM) through the input / output (I / O) port of the single-chip microcomputer. Looking at the description of the above single-chip microcomputer about PCA, we can see that:

[0012] 1. The steering gear control device can realize up to 4 PWM outputs.

[0013] 2. The duty ratio of the 8-bit PWM mode can be calculated by the equation: give. It can be seen from the equation that the maximum duty cycle is 100% (PCA0CPHn = 0), and the minimum duty cycle is 0.39% (PCA0CPHn = 0xFF). At the same time, the ECOMn bit can be cleared ...

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PUM

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Abstract

The invention provides a steering engine control device. Due to the fact that a single chip computer with a programmable counter array (PCA) is selected, the device has the following advantages that 1, one single route of steering engine can be controlled by using one route of the PCA, multiple routes of steering engines can be easily controlled by using multiple routes of output of the PCA, any burden is not added to a CPU (central processing unit), and angle is adjusted only by simply changing a register without interruption; 2, control precision / resolution (the minimum rotating angle) can be set by 8-bit or 16-bit PWM (pulse width modulation) software, and if the 16-bit PWM software is used, the control precision / resolution can be improved to 180 degrees / 65536=0.00274658203125 degree from 180 degrees / 256=0.703125 degree DIV (digits in voice); 3, the sensitivity (the angle changing speed) can be simply adjusted by software.

Description

technical field [0001] The invention relates to a steering gear control device, in particular to a steering gear control device comprising a single-chip microcomputer with a programmable counter array. Background technique [0002] The control of the steering gear requires a pulse width modulation signal with adjustable pulse width. The usual way to control the steering gear is to use the timer resources of the microcontroller, but this method not only takes up valuable timer and interrupt resources, but also requires more central processing units (CPUs) to participate, and the efficiency is not high. [0003] In view of this, it is necessary to improve the existing steering gear control method to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to provide a steering gear control device, which can not only realize the control of a single steering gear, but also easily realize the control of multi-channel steering gears w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 邓洪波
Owner SUZHOU IND PRAK NEW HONGBO COMM TECH
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