CN101871395A

CN101871395A - A kind of intelligent controller of fire engine throttle

Info

Publication number: CN101871395A
Application number: CN200910050063A
Authority: CN
Inventors: 郭辉; 刘新田; 赵礼辉; 黄虎; 高蔚
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2010-10-27
Anticipated expiration: 2029-04-27
Also published as: CN101871395B

Abstract

The invention relates to an intelligent throttle controller for a fire truck engine, comprising a working parameter sensing device, a function button, a signal conditioning circuit unit, a single-chip microcomputer, a throttle driving circuit unit, a throttle actuator and a display module. The working parameter sensing device And the function keys are respectively connected with the single-chip microcomputer through the signal conditioning circuit unit, the single-chip microcomputer is connected with the throttle actuator through the throttle driving circuit unit, and the said display module is connected with the single-chip microcomputer. Compared with the prior art, the present invention can intelligently control the engine throttle of the fire truck according to the input of the sensor, function key and mode selection switch, and display the working state parameters of the system in real time. It has the characteristics of high degree of automation, reliable control accuracy and convenient operation. It can effectively reduce the labor intensity of fire fighters and improve the fire fighting effectiveness.

Description

A kind of intelligent controller for engine throttle of fire engine

Technical field

The present invention relates to controller, particularly relate to a kind of intelligent controller for engine throttle of fire engine.

Background technique

At present, the engine throttle of fire engine control system is made up of sensor, motor pulses sensor, operating grip, motor driver and central control unit, by the manual tune operating grip can realize engine throttle increase, reduce, reset function, simultaneously working status parameter is shown by primary instrument.But, find in actual the use, because manual operation is difficult to reach accurate throttle position control, make the power output of motor be difficult to meet the demands; Simultaneously, the primary instrument precision is low, demonstration is directly perceived, rate of fault is high, and this makes labor intensity of operating personnel higher on the one hand, has also reduced fire-fighting fighting capacity on the other hand.

Summary of the invention

Technical problem to be solved by this invention is exactly to provide a kind of intelligent controller for engine throttle of fire engine for the defective that overcomes above-mentioned prior art existence.

Purpose of the present invention can be achieved through the following technical solutions: a kind of intelligent controller for engine throttle of fire engine, it is characterized in that, comprise running parameter sensing device, function button, signal conditioning circuit unit, single-chip microcomputer, throttle drive circuit unit, throttle actuator and display modular, described running parameter sensing device and function button are connected with single-chip microcomputer by the signal conditioning circuit unit respectively, described single-chip microcomputer is connected with throttle actuator by the throttle drive circuit unit, and described display modular is connected with single-chip microcomputer.

Described running parameter sensing device comprises speed probe, the pressure transducer that is used to measure fire service pump rear portion pressure, the B/P EGR Back Pressure Transducer EGR that is used to measure the anterior pressure of fire service pump, the flow transducer that is used to measure the fire-fighting water flow that is used to measure engine speed, the current sensor that is used to measure the throttle actuator current of electric, and described speed probe, pressure transducer, B/P EGR Back Pressure Transducer EGR, flow transducer and current sensor all are connected with single-chip microcomputer by the signal conditioning circuit unit.

Described current sensor is integrated in the throttle drive circuit unit.

Described function button comprise increase button, reduce button, pressure sets button, flow set button and automatic/hand button, described increase button, reduce button, pressure is set button, flow set button and automatic/hand button and all is connected with single-chip microcomputer by the signal conditioning circuit unit.

Described single-chip microcomputer adopts the XC164CM single-chip microcomputer.

Described throttle drive circuit unit adopts the MC33486 chip.

Compared with prior art, the present invention can be according to the input intelligent control engine throttle of fire engine of sensor, function button and mode selection switch, and real-time display system working status parameter, have that automaticity height, control accuracy are reliable, the characteristics of simple operation, can effectively reduce fire-fighting soldier's labor intensity and improve fire-fighting fighting capacity.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the control flow block diagram of the embodiment of the invention.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of intelligent controller for engine throttle of fire engine, comprise running parameter sensing device, function button, signal conditioning circuit unit 3, single-chip microcomputer 4, throttle drive circuit unit 5, throttle actuator 6 and display modular 7, described running parameter sensing device and function button are connected with single-chip microcomputer 4 by signal conditioning circuit unit 3 respectively, described single-chip microcomputer 4 is connected with throttle actuator 6 by throttle drive circuit unit 5, and described display modular 7 is connected with single-chip microcomputer 4.

Described running parameter sensing device comprises speed probe 10, the pressure transducer 11 that is used to measure fire service pump rear portion pressure, the B/P EGR Back Pressure Transducer EGR 12 that is used to measure the anterior pressure of fire service pump, the flow transducer 13 that is used to measure the fire-fighting water flow that is used to measure engine speed, the current sensor 14 that is used to measure the throttle actuator current of electric, and described speed probe 10, pressure transducer 11, B/P EGR Back Pressure Transducer EGR 12, flow transducer 13 and current sensor 14 all are connected with single-chip microcomputer 4 by signal conditioning circuit unit 3; Described current sensor 14 is integrated in the throttle drive circuit unit 5; Described function button comprise increase button 20, reduce button 21, pressure sets button 22, flow set button 23 and automatic/hand button 24, described increase button 20, reduce button 21, pressure is set button 22, flow set button 23 and automatic/hand button 24 and all is connected with single-chip microcomputer 4 by signal conditioning circuit unit 3; Described single-chip microcomputer 4 adopts the XC164CM single-chip microcomputer; Described throttle drive circuit unit 5 adopts the MC33486 chip.

The signal of sensor and function button entering signal conditioning circuit unit become standard signal and enter single-chip microcomputer, single-chip microcomputer sends instruction according to predetermined policy and removes to control final controlling element by motor drive module, the while single-chip microcomputer outputs to display modular with the work system parameter and shows in real time, and sensor comprises speed probe, the B/P EGR Back Pressure Transducer EGR before the measurement fire service pump, the pressure transducer behind the measurement fire service pump of measuring engine speed, the flow transducer of measuring the fire-fighting water flow; Function button comprises increase, reduces, pressure setting, flow set and automatic/hand control mode selector switch; Single-chip microcomputer is the XC164CM single-chip microcomputer; The throttle drive circuit unit is MC33486, and the MC33486 chip has the function of electric current back production, can feed back to single-chip microcomputer to the electric current of the motor that is driven by the CUR pin, for the condition that makes things convenient for that provides is provided in the overcurrent protection of this control system; When single-chip microcomputer detects the function button input, according to the control strategy that is predefined in the single-chip microcomputer, send instruction to driver module, regulate throttle actuator, controller outputs to display modular with the working state of system parameter and shows in real time, working status parameter comprises the instantaneous flow of pressure before and after the engine speed, fire service pump, fire-fighting water and integrated flow, controller mode of operation, grasps working state of system for the operator.

Controller of the present invention outputs to display modular with the working state of system parameter and shows in real time, and working status parameter comprises the instantaneous flow of pressure before and after the engine speed, fire service pump, fire-fighting water and integrated flux, control mode.

Embodiment

As shown in Figure 1, XC164CM single-chip microcomputer 4 detects the signal and the final controlling element motor current signal of signals of rotational speed sensor, pressure sensor signal, B/P EGR Back Pressure Transducer EGR signal, flow sensor signal and 5 function keys 20～24 by signal conditioning circuit.The signal and the final controlling element current of electric of speed probe 10, pressure transducer 2, B/P EGR Back Pressure Transducer EGR 3, flow transducer 4 are analogue signals, finish A/D through signal conditioning circuit 3 and convert digital signal to and be input to single-chip microcomputer 4.Simultaneously, the signal of 5 function buttons 20～24 is received the digital input pin of single-chip microcomputer 4 after signal conditioning circuit 3 carries out filtering.XC164CM single-chip microcomputer 4 sends instruction to MC33486 driver module 5, the just commentaries on classics of control throttle actuator 6, reverse, stop, the increase that realizes the fire-fighting truck accelerator open degree with reduce, pressure setting and the flow set and the selection of automatic or manual control mode of fire-fighting water.Simultaneously, XC164CM single-chip microcomputer 4 outputs to display modular 7 with working status parameter and shows in real time, and described working status parameter comprises the instantaneous flow of pressure before and after the engine speed, fire service pump, fire-fighting water and integrated flow, controller mode of operation.

As shown in Figure 2, the control flow block diagram of fire-fighting truck engine intelligent throttle control, the controller electrification reset is also finished after the system initialization state of cycle detection function button.Be automatic control mode when the automatic/hand button is pressed, continue that detected pressures is set button or whether the flow set button is pressed, when detecting certain function key and press, carry out corresponding pressure target control strategy or flow control strategy respectively.Be manual control mode when the automatic/hand button is not pressed, continue to detect increase button or reduce button and whether be pressed, when detecting certain function key and press, carry out respectively and increase control strategy or reduce control strategy accordingly.

Claims

1. A fire truck engine throttle intelligent controller, is characterized in that, comprises working parameter sensing device, function button, signal conditioning circuit unit, single-chip microcomputer, throttle driving circuit unit, throttle actuator and display module, described working parameter The sensing device and the function keys are respectively connected to the single-chip microcomputer through the signal conditioning circuit unit, the single-chip microcomputer is connected to the throttle actuator through the throttle driving circuit unit, and the said display module is connected to the single-chip microcomputer.

2. A kind of engine throttle intelligent controller for a fire truck according to claim 1, wherein said working parameter sensing device comprises a speed sensor for measuring the engine speed, a speed sensor for measuring the pressure at the rear of the fire pump Pressure sensor, negative pressure sensor for measuring the pressure at the front of the fire pump, flow sensor for measuring the flow of fire water, current sensor for measuring the motor current of the throttle actuator, the speed sensor, pressure sensor, negative pressure sensor , the flow sensor and the current sensor are all connected with the single-chip microcomputer through the signal conditioning circuit unit.

3. The intelligent throttle controller for a fire truck engine according to claim 2, wherein the current sensor is integrated in the throttle drive circuit unit.

4. According to claim 1 or 3 described a kind of engine throttle intelligent controller for fire engine, it is characterized in that, described function key comprises increase key, decrease key, pressure setting key, flow rate setting key and The automatic/manual button, the increase button, the decrease button, the pressure setting button, the flow setting button and the automatic/manual button are all connected to the single-chip microcomputer through the signal conditioning circuit unit.

5. according to the intelligent controller of a kind of fire truck engine throttle according to claim 4, it is characterized in that, described single-chip microcomputer adopts XC 164CM single-chip microcomputer.

6. According to claim 1 or 5, an intelligent throttle controller for a fire truck engine is characterized in that, the throttle driving circuit unit adopts MC33486 chip.