Speed automatic limiting device for automobile
The utility model belongs to the road speed of restricting vehicle in night, rain, mist and the Car Automatic Speed Limit device of the speed when turning round.
The traffic accident that takes place on the highway mostly is that the chaufeur high speed traveling of power actuated vehicle causes.Particularly some automobilists are very sliding on the rainy day road surface, under the bad mal-condition of greasy weather visbility sight line in very poor and night, high speed traveling still, do not slow down and turn round, cause thrusting into, serious accident, the property of critical country and the people's life security such as collision, overturning.It no doubt is that navigating mate lacks understanding to safe driving that these traffic accidents take place, the thought paralysis, and objectively be the automatic speed limit device that keeps the vehicle safety road speed under the mal-condition not being installed on the power actuated vehicle, can not strong control driver change unsafe vehicular behavior.
The purpose of this utility model be to provide a kind of can the automatic guidance vehicle Car Automatic Speed Limit device of safe driving speed under improper riving conditions such as rainy day, greasy weather, night and the vehicle safe driving speed when turning round.
The method that the utility model is finished is by the digital counter that is installed in operator's compartment, and rate-limiting control circuit, Control for Speed Limitation parts three parts are formed.Remove the cylinder lever connecting rod between original footfeed and the throttle, the Control for Speed Limitation parts be installed on the fixed support between footfeed and the throttle, and two ends respectively with footfeed, be connected with throttle.Rainy as running into during running car (mist, night, turn round) situation, chaufeur will inevitably be opened rain brush (Fog-proof light, night headlight, steering indicating light) switch, and the high level on this moment switch is sent in the Control for Speed Limitation device circuit.The signal that velometer is sent sensor here, through measuring control gate to counting machine, behind the counting, decoding, driving, charactron show Vehicle Speed.When measuring vehicle driving speed, velometer (rains above the safe driving speed of raining, mist, the safe driving speed of turning round is 30 kilometers/hour, the night safe road speed is 40 kilometers/hour) time, the numeral velometer is sent high level and is given the Control for Speed Limitation device, controller is started working under two high level (rain brush switch) act on simultaneously, cutin relay two windings point: the annunciator in the logical velocity limiter control circuit of a winding, the control magnet coil power supply in the Control for Speed Limitation parts is connected on another road, iron core is subjected to displacement, the iron core pin is deviate from from the semicircle chuck, footfeed and accelerator rod are thrown off, the automotive engine throttle reduces accelerator open degree under action of the spring, tractive performance is descended, reduce Vehicle Speed, this moment, chaufeur was stepped on footfeed again, can not play the oiling effect yet, have only the speed of a motor vehicle of working as to drop in the safe driving speed, when velometer does not have high level output, controller quits work, the cutoff solenoid power supply, the iron core pin resets under action of the spring, stretch into footfeed is connected with accelerator rod, can continue to refuel, vehicle remains on and continues in the safety speed to travel.Under the good condition of weather, the velocity limiter work, normal vehicle operation there is not the overslaugh effect when turning round.
The utility model has the advantages that: 1, simple in structure, manufacturing, installation, maintenance are conveniently; 2, adopt the control system of integrated circuit and mechanical connection, cost is low, fault is few; 3, dependable performance, easy to use, work does not have overslaugh to chaufeur, helps safe driving, reduces the generation of road traffic accident; 4, substitute traditional mileage meter with numeric display speed and electromagnetism digital counting, overcome that unstable and mechanical wear causes the inaccurate problem of counting because of pointer; Instrument is more attractive in appearance; 5, the road speed of high speed limit vehicle as required.
Accompanying drawing 1 is a rate-limiting control circuit scheme drawing of the present utility model, Fig. 2 speed controller spare structural representation that exceeds.
Most preferred embodiment of the present utility model is: mounting and fixing bracket (14) between automobile accelerator pedal (3) and engine throttle (15), center shaft (5) is fixed on the support.Be fixed on the semicircle chuck rotating tension bar that the rotating tension bar (2) on the semicircle chuck is formed by semicircle chuck (4) and an end, the electromagnetic control accelerator open degree bar that is composed of a fixed connection by the lower end of the upper end of electromagnetic controller housing (7) and accelerator open degree pull bar (1) all utilizes together suit and being positioned on the center shaft of clamp nut (6).Utilize pin and Das Gaspedal to flexibly connect with the other end of the rotating tension bar of semicircle chuck coaxial rotation, the upper end of accelerator open degree pull bar and throttle flexible connection.Magnet coil (8) in the electromagnetic controller housing, with the lower end bonded assembly electromagnetic core (10) of electromagnetism pin (12) in magnet coil.In normal working conditions, because the effect of the retracing spring (9) of electromagnetic core bottom, the upper end of electromagnetism pin enters in the semicircle chuck mouth (13) and applies mechanically with it, finishes opening throttle or closing the action of throttle of being finished being connected between footfeed and the throttle.Have only when automobile is wanted the speed limit driving under non-normal condition when, rate-limiting control circuit output control signal makes aerotron BG3 conducting, relay J work, armature contact J2 connects the magnet coil power supply, at this moment, the electromagnetic core compression spring, throw off with semicircle chuck mouth electromagnetism pin upper end, thus semicircle chuck coaxial rotation pull bar and accelerator open degree pull bar also disconnect thereupon simultaneously, at this moment, automobile driver foot throttle pedal, open the throttle wide more not, automobile only keeps the throttle power of safe driving speed, up to removing the non-normal working condition, behind the power supply signal of rate-limiting control circuit excision and magnet coil, under the effect of pull back spring, push to electromagnetic core, the upper end of electromagnetism pin just enters semicircle chuck mouth again, the connection Das Gaspedal is connected with the accelerator open degree pull bar, and the step on the gas pedal just can play the effect of open the throttle wide again.Rate-limiting control circuit partly is by R1R3, R5, R7, the end of R9 respectively with left and right sides turn signal swich K1K2, Fog-proof light K switch 3, wiper K switch 4, night, the mouth of Der StandlichtScheinwerfer und Parkleuchtenschalter K5 connected, R1R3, R5, R7, the other end of R9 respectively with resistance R 2R4, R6, R8, R10 connects, R2R4, R6, R8, the R10 negativing ending grounding, thereby 5 bleeder circuits forming, respectively from m1m2, m3, m4, the input end A2B2 of the two four input OR-gate IC12 of m5 point and change-over circuit, C2, D2, A1 connects, the mouth Y1 of IC12, Y2 respectively with the input end A3 of two three input AND gate circuit IC11, A2 connects, the input end B3 of IC11, the mouth C of C3 and ten decoder driver IC9 of counting machine, f connects, the input end B2 of IC11, the mouth g of C2 and counting machine 10-bit digit driver IC 9, C connects, the mouth Y3 of IC11, Y2 together is connected with the b utmost point of aerotron BG3, the C utmost point of aerotron BG3 is connected with automobile power source is anodal, the e utmost point of aerotron BG3 is connected with the anode of relay coil J, the coil other end ground connection of relay J, the end of relay armature contact J1 is connected with automobile power source is anodal, the other end is connected with overspeed alarm, annunciator other end ground connection, one end of relay J 2 is connected with automobile power source is anodal, the other end is connected with solenoid feed terminal (11) in the Control for Speed Limitation parts, magnet coil one end is connected with solenoid feed terminal, magnet coil other end ground connection is promptly finished the rate-limiting control circuit loop under above-mentioned non-normal working condition.As long as in the left and right sides steering indicating light, Fog-proof light, wiper motor during a certain electrical work, it is that g, the C two ends that high level is delivered to IC11 input end A2,9 outputs of counting machine 10-bit digit driver IC then are high level that A2B2, C2, D2 have high level input IC12, an IC12 mouth Y2, and the IC11 input end B2, the C2 that are connected in parallel on g, C two ends also are the high level input.The g of ten decoder driver IC9 of counting machine, C two ends are as the speed control signal source of Control for Speed Limitation device, when IC11 when three input ends of A2, B2, C2 all are the high level condition simultaneously, the mouth Y2 of IC11 just has high level output, make aerotron BG3 conducting, the coil power of relay J is switched on armature contact J1, and the conducting simultaneously of connection overspeed alarm power supply armature contact J2 bonded assembly positive source and magnet coil, Control for Speed Limitation parts enter mode of operation.When the Der StandlichtScheinwerfer und Parkleuchtenschalter that open during running car night is sent high level by the m5 point here to the A1 of IC12 end, the input end A3 of IC11 also is a high level, the Ausgang of ten decoder drivers of IC9, C be high level as night Control for Speed Limitation signal source deliver to input end B3, C3, the IC11 of IC11 under three high level effects, Y3 output high level makes aerotron BG3 conducting, and the Control for Speed Limitation parts enter work.
