CN2704506Y - Accelerating and reducing (emergent reducing) indicator of vehicle - Google Patents

Abstract

The utility model relates to an accelerating and reducing (emergent reducing) indicator of vehicle, comprising a sensor, an electric bridge, an integrated operational amplifier module, an on-off control module, a set of LED (indicator light) and a resistor. The strength of the electrical signal come out by the sensor indicates the strength of the force with which a driver steps on the gas and determines the number of a set of LED (indicator light) that are illuminated. When the electrical signal come out by the sensor is maximal as the force with which the driver steps on the gas is maximal, a set of LED (indicator light) are all illuminated. Inversely, a set of LED (indicator light) are entirely blanking when the gas is loosen. The driver can thereupon operate by judging accelerating, reducing or emergent reducing (braking) of an automobile in front according to the number of the LED (indicator light) that are illuminated. Thus, the safe driving distance between the front and the back vehicles is all along holden and the occurence of overtaking is effectively avoided or reduced.

Description

Self-propelled vehicle acceleration-deceleration (the anxious deceleration) indicating device

Affiliated technical field

The utility model relates to the vehicle lamp system, and a kind of self-propelled vehicle acceleration-deceleration (the anxious deceleration) indicating device is provided especially.

Background technology

At present, to warn back driver oneself to want unique signal of anxious slowing-down brake be that the taillight that indication is braked lights to automobile driver.There is obvious drawback: promptly begun deceleration from unclamping Das Gaspedal in fact, from unclamping Das Gaspedal to having touched on the brake the 1-2 time in second, but the driver of back can't judge, wait to see when stoplight stop lamp is bright, the 1-2 time in second hindered, and normal running distance overtakes in second at 1-2, so cause the rear-end collision accident frequently to take place, and, cause casualties and economic loss once generation rear-end collision is a string often.

Summary of the invention

In order to overcome the current mobility car when implementing anxious the deceleration, the back driver can't know and judge that front driver has unclamped Das Gaspedal, can only when seeing that stoplight stop lamp is bright, implement to unclamp Das Gaspedal again when removing to touch on the brake pedal, lagged behind 1-2 second, cause the drawback of rear-end collision, the utility model provides a kind of self-propelled vehicle acceleration-deceleration (the anxious deceleration) indicating device, can make things convenient for driver's front driver of indicating the back clearly to unclamp Das Gaspedal, will brake, the driver of back can unclamp Das Gaspedal and the pedal that touches on the brake immediately, made full use of this 1-2 second, car continue to keep normal safe space between motorcars and avoids the generation of rear-end collision before and after making.

The technical scheme in the invention for solving the technical problem is: the utility model is made up of sensor, electric bridge, integrated operational amplifier module, switch control module and one group of light-emitting diode, connects by lead therebetween.Wherein, sensor can be a pressure sensor, and promptly strain-gauge is installed in above the automobile accelerator pedal; Also can select displacement pickup for use, measure the vertical displacement of Das Gaspedal.But displacement pickup is the high and installation inconvenience of strain-gauge cost than pressure sensor, and embodiment then of the present utility model advises that adopts pressure sensor is a strain-gauge.The quantity of one group of light-emitting diode is more than two, but too many cost height is not easy to again install, very little be unfavorable for that the driver accurately judges, embodiment of the present utility model advises that 10 is one group.In order to be that red (stoplight stop lamp) and yellow (steering indicating light) are distinguished mutually with existing automobile tail indicator lamp, the color of light-emitting diode can be used red and yellow color in addition, and embodiment of the present utility model advises using green.Electric bridge, integrated operational amplifier module are formed a circuit galley, are installed in front in the automobile; Switch control module and one group of light-emitting diode and corresponding resistance are formed a circuit galley, are installed in the automobile tail that the back driver sees easily.On the Das Gaspedal of self-propelled vehicle, strain-gauge is installed, when the power of driver's retrofire automobile step on the gas changes, the resistance of strain-gauge changes, the voltage that causes electric bridge changes, by the integrated operational amplifier module master cock device is removed in faint variable signal amplification, binistor control indicator lamp (one group of light-emitting diode) is lighted or is extinguished.Promptly when setting foot on Das Gaspedal, with the increase of putting forth effort, indicator lamp (one group of light-emitting diode) is lighted or one by one with diminishing of putting forth effort and extinguish one by one, unclamp Das Gaspedal then indicator lamp (one group of light-emitting diode) all extinguish.Having warned the driver of back to unclamp Das Gaspedal like this before the plate that touches on the brake will brake, and the driver of back unclamps Das Gaspedal immediately and touches on the brake like this, and the slowing-down brake of car is synchronously accurate before and after making, the safe normal row spacing before and after remaining between two cars.If select displacement pickup for use, its output be voltage signal, then not needing by electric bridge directly connects with integrated operational amplifier module, switch control module and one group of light-emitting diode and corresponding resistance gets final product.

The beneficial effects of the utility model are: the quantity that can light or extinguish according to indicator lamp (one group of light-emitting diode), can make the driver of back promptly and accurately judge the degree of front driver acceleration-deceleration and unclamp the situation that Das Gaspedal promptly will be braked, the driver of back can unclamp the Das Gaspedal brake immediately, the slowing-down brake of car is synchronously accurate before and after making like this, normal safe space between motorcars and avoid knocking into the back between the car reduces personal casualty and property damage effectively before and after remaining.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is structural representation of the present utility model and embodiment.

Among the figure 1, strain-gauge, 2, electric bridge, 3, variable resistance, 4, arm resistance, 5, integrated operational amplifier module, 6, power supply just, 7, power-, 8, switch control module, 9, delay capacitor, 10, current-limiting resistance, 11,10 green LEDs (indicator lamp), 12, divider resistance.

The specific embodiment

The utility model is that embodiment is described further with accompanying drawing 1.In the accompanying drawing 1, the characteristic of utilizing the resistance of strain-gauge (1) to change along with stressed variation is formed electric bridge (2), and strain-gauge (1) and variable resistance (3) are composed in series an arm, and other three arms are made up of resistance (4).By regulating variable resistance (3), make four arms of electric bridge (2) reach balance.When the stressed variation of strain-gauge (1), the resistance of strain-gauge (1) changes, and the balance of electric bridge (2) is destroyed, and voltage changes, and promptly electric bridge can show the variation of ultra-weak electronic signal.The gain of integrated operational amplifier module (5) can reach 1000, can be amplified to the volt level to faint millivolt level electric signal.Utilize a divider resistance (12) to carry out dividing potential drop by the variable signal after integrated operational amplifier module (5) amplification, the variation that guarantees voltage is between the 0-1.2 volt.Utilize the variable signal after the dividing potential drop to go master cock control module (8) then.The characteristic of switch control module (8) is: one 1.2 volts reference voltage is arranged in the module, the electric signal of input and it compare, and when input was 0 volt, 10 green LEDs (11) did not all work, when voltage was increased to 1.2 volts, 10 green LEDs (11) were all lighted.When voltage when 0 volt increases by 0.12 volt, first light-emitting diode (11) (herein be made as from a left side and right be preface) is lighted, and the like, when voltage reached 1.2 volts, 10 green LEDs (11) were lighted successively.When voltage descends 0.12 volt the time from 1.2 volts, the tenth light-emitting diode (11) extinguishes, and the like, when voltage dropped to 0 volt, 10 green LEDs (11) all extinguished.Current-limiting resistance (10) is that protection light-emitting diode (11) avoids electric current to be burnt too greatly.Utilize the switching time that the impulse electricity of delay capacitor (9) can inhibit signal switch control module (8).Like this, when driver's retrofire automobile, power supply just (6) and power-(7) is connected, and when the driver set foot on Das Gaspedal and normally drives a vehicle, 10 green LEDs (11) were lighted gradually, tell the driver of back normally to drive a vehicle.The power of step on the accelerator is big more, and it is big more that throttle is opened, and the quantity that light-emitting diode is lighted is many more, and throttle is stepped on when maximum, fastest, and 10 green LEDs (11) are all lighted.When car deceleration, part light-emitting diode (11) extinguishes, the lamp number that the driver of back can rely on light-emitting diode (11) to be lighted is accurately judged degree of deceleration (and can only or feel with driver's range estimation in the past), when 10 green LEDs (11) when all extinguishing, just tell the driver of back, front truck has unclamped throttle and has wanted sudden stop, the driver of back can unclamp throttle immediately and touch on the brake, the acceleration of car before and after making, slow down, anxious slow down (sudden stop) remains synchronously accurate, avoid the generation of rear-end collision with the normal running distance of safety between the car before and after remaining, avoid or reduce personal casualty and property damage.

Claims (3)

1. a self-propelled vehicle acceleration-deceleration (the anxious deceleration) indicating device, it is characterized in that, form by strain-gauge (1), electric bridge (2), integrated operational amplifier module (5), switch control module (8), one group of light-emitting diode (11) and resistance, connect by lead therebetween.Strain-gauge (being pressure sensor) is installed in above the automobile accelerator pedal; Electric bridge (2) and integrated operational amplifier module (5) are formed a circuit galley and are installed in front in the automobile; Switch control module (8), one group of light-emitting diode (11) and corresponding resistance are formed a circuit galley, are installed in the automobile tail that the back driver sees easily.

2. a kind of self-propelled vehicle acceleration-deceleration as claimed in claim 1 (the anxious deceleration) indicating device is characterized in that the quantity of one group of light-emitting diode (11) is more than two.

3. a kind of self-propelled vehicle acceleration-deceleration as claimed in claim 1 (the anxious deceleration) indicating device, it is characterized in that, sensor also can be selected displacement pickup for use, directly connects with integrated operational amplifier module (5), switch control module (8), one group of light-emitting diode (11) and corresponding resistance.

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