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Electronic throttle control simulation experiment system

An electronic throttle and simulation experiment technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as poor knowledge of core technologies and no in-depth systematic research reports, etc., to achieve good low-speed characteristics, high current Continuous, reduced static friction effect

Inactive Publication Date: 2012-07-11
HEILONGJIANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

China is only in the stage of introduction and use, there is no in-depth and systematic research report, there is not much experience for reference, and little is known about foreign core technologies

Method used

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  • Electronic throttle control simulation experiment system
  • Electronic throttle control simulation experiment system
  • Electronic throttle control simulation experiment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Electronic throttle control simulation experiment system, its composition includes: control circuit, described control circuit includes signal acquisition and processing circuit, single-chip microcomputer, power drive circuit, control DC motor driver, accelerator pedal position sensor PPS and electronic throttle position sensor The TPS completes the feedback of the accelerator pedal control signal input and the throttle position signal respectively. The A / D converter of the single-chip microcomputer converts the input analog signal into a digital signal. After the control algorithm calculates the control amount, it passes through the high-speed output port HSO and I / O The O port outputs a control signal, and the DC motor driver outputs a power drive signal to control the rotation of the DC motor, that is, to realize the control of the throttle opening.

Embodiment 2

[0023] Described electronic throttle control emulation experiment system, described single-chip microcomputer adopts MC9S12DG128 as main chip, and described MC9S12DG128 structure is divided into MCU core and MCU peripheral two parts, and described MCU core comprises three kinds of memory FLASH, RAM, EEPROM, multi-voltage regulator including digital circuit and analog circuit power supply voltage, enhanced S12CPU with single-line background debugging interface BDM and operation monitoring function; page mode control of program memory, system with terminal identification, read and write control, and work mode control functions The comprehensive module SIM is used for time-division multiplexing bus ports for system expansion, in which A port and B port can be used as time-division multiplexing address data bus for external expansion memory or interface circuit, and part of E port can be used as control bus. The above MCU peripheral A / D converters ATD0, ATD1, enhanced timing and ca...

Embodiment 3

[0025] Described electronic throttle control emulation experiment system, the clock input interface of described single-chip microcomputer is on its 46EXTAL and 47XTAL pins, 112 pins are packaged, connect a 16M crystal oscillator, the reset circuit of described single-chip microcomputer has used Freescale The dedicated reset chip MC34064 generates a reset signal under low voltage conditions or generates a reliable reset signal under the trigger of the manual button SW. The external power supply voltage of the single-chip microcomputer is 5V, which are respectively the internal voltage regulator of the single-chip microcomputer, I / O-side driver, A / D converter provides power, LM2576 switching voltage regulator integrated circuit is the core device of 5V regulated power supply,

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Abstract

The invention relates to an electronic throttle control simulation experiment system. The overseas research of the electronic throttle control system (ETCS) has over twenty-year history, the products prepared by manufacturers are beginning to be put on the market largely and the current generation of the electronic throttle products has been launched. The system of the invention comprises a control circuit, wherein the control circuit comprises a signal acquiring and processing circuit, a MCU, a power drive circuit, a DC motor control driver, an accelerator pedal position sensor (PPS) and an electronic throttle position sensor (TPS); the accelerator pedal position sensor and the electronic throttle position sensor are used to separately input the accelerator pedal control signal and feed back the throttle position signal, the A / D converter of the MCU converts an input analog signal to a digital signal, after the control algorithm calculates control quantity, the control signal is output from a high-speed outlet (HSO) and an I / O port, the DC motor driver outputs the power drive signal to control the rotation of the DC motor, thus realizing the control of the opening of the throttle. The invention is used in the electronic throttle.

Description

Technical field: [0001] The invention relates to an electronic throttle control simulation experiment system. Background technique: [0002] The Electronic Throttle Control (ETC) system removes some auxiliary compensation devices in the throttle mechanism of the electronically controlled fuel injection system, cancels the mechanical connection between the accelerator pedal and the throttle valve, and adds a drive circuit, The opening of the drive motor and gear transmission system is directly driven by the motor under any working conditions. The engine ECU realizes the precise control of the throttle opening through the control algorithm, so that the intake air volume can be precisely controlled. Since the fuel injection quantity is precisely controlled by the engine management system, the ECU can configure an optimal mixture composition according to the change of the engine working conditions, which can increase the output power and reduce emissions, and at the same time ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B19/00G09B19/16G05D3/20G05B19/042
Inventor 张毅张洪田张金柱崔宏耀刘红波
Owner HEILONGJIANG INST OF TECH
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