CN201682455U

CN201682455U - Novel eddy current retarder controller for automobile

Info

Publication number: CN201682455U
Application number: CN2010201696991U
Authority: CN
Inventors: 卢蕾蕾
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2010-04-23
Filing date: 2010-04-23
Publication date: 2010-12-22
Anticipated expiration: 2020-04-23

Abstract

The utility model relates to a novel eddy current retarder controller for an automobile. 1 to 6 gear buttons, a constant-speed button and an anti-lock brake system (ABS) signal button are input into a singlechip through an input de-twitter circuit; a vehicle speed and a rotor signal are input into the singlechip through an isolating circuit; a brake pressure is input into the singlechip after being subjected to analogue to digital conversion (A/D) by a signal processing circuit; after processing each input signal through design software, the singlechip drives each power module through a driving circuit; each power module returns the signal to the singlechip; a constant-speed index signal and a fault signal are output through a signal driving circuit; and singlechip data is transmitted to a personal computer (PC) through a communication port. The novel eddy current retarder controller has a plurality of user-friendly functions and is very suitable for long-distance downgrade traveling or limited-speed traveling on an expressway; and the novel eddy current retarder controller is provided with special debugging software, so that the working parameters of the controller are convenient to adjust and the controller can be suitable for eddy current retarders of different vehicle forms, different models and different manufacturers and have high adaptability.

Description

A kind of new automobile controller of current vortex retarder

Technical field

The utility model relates to a kind of safe auxiliary braking system device, particularly a kind of new automobile controller of current vortex retarder.

Background technology

Current vortex retarder is an auxiliary brake device for automobile of using the electromagnetic induction principle design, and it changes the kinetic energy of vehicle reverse current vortex into by electromagnetic induction and consume the realization decelerating effect in the heat energy mode.The automobile current vortex retarder is historical in the production in existing more than 50 year of western developed countries such as America and Europe, use, introduce so far the domestic end of the nineties, it is very fast that domestic vehicle is installed and used growth, market prospects are wide, existing how tame current vortex retarder manufacturer, but control system mostly is relay control mode, compares function quite single (being generally fourth gear) with external electronic control mode, can not realize constant speed, utmost point low speed and function such as close when stopping automatically.The new automobile controller of current vortex retarder is by the electronic controller of monolithic processor controlled employing PWM technology (pulse-width modulation), six slow gears and a constant speed gear have been designed, stir driving switch, can be according to predefined gear control definition, by single-chip microcomputer through calculating suitable braking force size in real time, the output corresponding PWM, the control current vortex retarder realizes that car brakeing is slow.

Summary of the invention

The utility model is at the single problem of present current vortex retarder control, a kind of new automobile controller of current vortex retarder has been proposed, electronic controller by monolithic processor controlled employing PWM technology (pulse-width modulation), six slow gears and a constant speed gear have been designed, stir driving switch, can be according to predefined gear control definition, by single-chip microcomputer through calculating suitable braking force size in real time, the output corresponding PWM, the control current vortex retarder realizes that car brakeing is slow, powerful in function.

The technical solution of the utility model is: a kind of new automobile controller of current vortex retarder, comprise button, the input de-twitter circuit, input isolation circuit, signal processing circuit, signal drive circuit, drive circuit, single-chip microcomputer, several power models, 1～6 gear button, constant speed button and ABS call button are input to single-chip microcomputer by the input de-twitter circuit, the speed of a motor vehicle and rotor signal are imported single-chip microcomputer by input isolation circuit, brake pressure is by signal processing circuit A/D conversion back input single-chip microcomputer, after single-chip microcomputer is handled each input signal by design software, drive each power model by drive circuit, each power model returns signal to single-chip microcomputer, by signal drive circuit output constant speed index signal and fault-signal, single-chip data is sent into PC by communication port.

The beneficial effects of the utility model are: a kind of new automobile controller of current vortex retarder of the utility model, be provided with six slow gears and a constant speed gear, and the many and hommization of function is fit to longly use when travelling apart from descending or Speed Limitation on Freeway very much; Have Ultra-Low Speed (being lower than 5km/h) and automatic closing function when stopping, can protecting battery effectively; Be equipped with special-purpose debugging software, can conveniently adjust the running parameter of controller by it, make controller can be applicable to the current vortex retarder of different automobile types, different model, different manufacturers, adaptability is good.

Description of drawings

Fig. 1 is a kind of new automobile controller of current vortex retarder of the utility model theory diagram;

Fig. 2 is a kind of new automobile controller of current vortex retarder of the utility model winding diagram.

Embodiment

A kind of as shown in Figure 1 new automobile controller of current vortex retarder theory diagram, controller comprises button, the input de-twitter circuit, input isolation circuit, signal processing circuit, signal drive circuit, drive circuit, single-chip microcomputer, several power models, 1～6 gear button, constant speed button and ABS call button are input to single-chip microcomputer by the input de-twitter circuit, the speed of a motor vehicle and rotor signal are imported single-chip microcomputer by input isolation circuit, brake pressure is by signal processing circuit A/D conversion back input single-chip microcomputer, after single-chip microcomputer is handled each input signal by design software, drive each power model by drive circuit, each power model returns signal to single-chip microcomputer, by signal drive circuit output constant speed index signal and fault-signal, single-chip microcomputer is sent data into PC simultaneously.

Controller four road independent outputs are exported big I and are independently set (being set by special-purpose software by PC); Be provided with six slow gears, the driver can select suitable slow gear as required; Be provided with the constant speed button, have the constant speed function; Constant speed scope adjustable continuously (20km/h-120km/h) is set according to travel situations in real time by the driver; Each grade output current can be set (being set by special-purpose software by PC) arbitrarily to maximum zero; Have Ultra-Low Speed (being lower than 5km/h) and automatic closing function when stopping, can protecting battery effectively; Output has 90 ° of phase differences between four the tunnel, can reduce the impact to power supply; Have soft braking function, output current is ascending during braking increases continuously (by zero to needs 2 to 3 seconds), can effectively avoid the mechanical shock to rear axle differential; Be provided with the RS232 communication interface, be convenient to connect with PC, available machine carries out field adjustable onboard; Be equipped with special-purpose debugging software, can conveniently adjust the running parameter of controller, make controller can be applicable to the current vortex retarder of different automobile types, different model, different manufacturers by it; Have overvoltage, overcurrent and overheated automatic protection functions.

Winding diagram as shown in Figure 2, retarder main body 1, control ECU2, console switch 3, ABS relay 4, braking relay 5, vehicle speed signal 6, retarder relay indicating light 7 (be arranged in the combination instrument, wire harness 8, power main switch 9.

The controller using method:

1, the using method of slow function: when travelling driving switch is pulled to 16 grades from neutral gear and just can plays the braking retarded acting, braking torque minimum in the time of 1 grade, 6 grades of moment of torsion maximums are braked slowly when being withdrawn into neutral gear and are cancelled.

2, the using method of constant speed function: driving switch is not pressed the constant speed button when neutral can enter constant speed state, the speed of a motor vehicle when constant speed button is pressed is the set point of constant speed, cancel constant speed as long as switch is retracted the neutral seat, press the constant speed button during neutral gear inoperative.The output current of controller and shelves be the seat of switch irrelevant (1 6 grades) during constant speed, and are relevant with the speed of a motor vehicle, and it will adjust braking torque automatically according to the speed of a motor vehicle, make the speed of a motor vehicle be no more than set point.The big more output current of throttle is also big more during constant speed, and output current can reduce to zero when the speed of a motor vehicle is lower than setting.Constant speed is generally used during apart from descending long, or use when preventing that the speed of a motor vehicle is too fast during cruising.

3, to when constant speed state switches to slow braking, must retract the neutral seat earlier, and then move on the needed gear.

When the speed of a motor vehicle was lower than 5km/h, output current can be closed automatically when 4, using slow the braking, and retarder quits work.

5, when vehicle stops or not using, console switch should be placed neutral position.

Claims

1. new automobile controller of current vortex retarder, it is characterized in that, comprise button, the input de-twitter circuit, input isolation circuit, signal processing circuit, signal drive circuit, drive circuit, single-chip microcomputer, several power models, 1～6 gear button, constant speed button and ABS call button are input to single-chip microcomputer by the input de-twitter circuit, the speed of a motor vehicle and rotor signal are imported single-chip microcomputer by input isolation circuit, brake pressure is by signal processing circuit A/D conversion back input single-chip microcomputer, after single-chip microcomputer is handled each input signal by design software, drive each power model by drive circuit, each power model returns signal to single-chip microcomputer, by signal drive circuit output constant speed index signal and fault-signal, single-chip data is sent into PC by communication port.