CN2371074Y - Early warning device for motor-vehicle braking - Google Patents
Early warning device for motor-vehicle braking Download PDFInfo
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- CN2371074Y CN2371074Y CN 99211066 CN99211066U CN2371074Y CN 2371074 Y CN2371074 Y CN 2371074Y CN 99211066 CN99211066 CN 99211066 CN 99211066 U CN99211066 U CN 99211066U CN 2371074 Y CN2371074 Y CN 2371074Y
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Abstract
The utility model relates to an early warning device for motor-vehicle braking. Two non-contact type electronic switches matched with a corresponding triggering body are used as a signal transducer; the electronic switches and the triggering body are respectively installed on a vehicle body and an accelerator pedal arm. When the oil is reduced, a signal detection circuit can signal detect out whether the time of the accelerator pedal arm passing between the two photoelectric switches exceeds a predetermined value or not in order to decide to automatically pre-lighten brake lamps. When the brake lamps is just lightened by a control circuit and the vehicle is immediately oiled and accelerated, an oiling and lamp extinguishing circuit makes the brake lamps immediately extinguished.
Description
The utility model relates to a kind of vehicle signal device, is a kind of for preventing that self-propelled vehicle from knocking into the back, in emergency brake or when promptly subtracting oil backward car give alert signalling apparatus.
About 2/3rds of the rear-end collision road occupying road traffic accident of self-propelled vehicle.Therefore, how to utilize the alert technology of giving, for the back car provides the brake as much as possible reaction time, existing a lot of people make an effort.Give alert technical elements in emergency brake, key issue is how to detect promptly to subtract oily signal, that is to say to adopt which kind of sensor and corresponding signal deteching circuit, and it has influence on what of the Timing Advance that gives alert signal, stability, difficulty or ease, the length in life-span and the height of cost installed.Disclosed technology is as CN94214764.2, CN94219876.x, and CN94220621.5, CN94248094.5 uses the inertia switch sensor, though it is simple in structure, installs easily, for emergency brake, gives alert Timing Advance very little; CN93220739.1, CN95205947.9, CN95210451.2, its sensor is a switch that is provided with at Das Gaspedal zero-bit place, when throttle returned zero, stoplight stop lamp was just lighted once, though this method structure and circuit are all very simple, but it can not distinguish emergency brake and foresight brake, and gives alert Timing Advance also seldom; CN93229130.9 utilizes the electromagnetic induction between inductance coil and the permanent magnet to make sensor, this method is simple in structure, give alert Timing Advance than preceding two kinds all good, but make the stock that contains permanent magnet, along with Das Gaspedal is moved together, this stock should rotate by moving linearly again in a coil that is fixed on the car body, so be difficult to install, secondly, inductance coil combines with distributed capacitance, is easy to generate self-excitation; US005387898A, it is to utilize the close-up crystal unit be installed on the accelerator pedal arm and inertia weights to detect as sensor to subtract speed oil, its speed of response is fast, installs simply, but its cost is too high, and false triggering especially easily on the road surface of injustice.In disclosed technology, another common weak point is, gives when alert, in case stoplight stop lamp is lighted, must wait until that preset time finishes just to extinguish, during this period of time, quicken even refuel, stoplight stop lamp is still being lighted, and this often needs to stop, starting and gearshift when travelling on crowded street, this can cause the frequent stoplight stop lamp of lighting, when playing step gear shifting especially at the parting of the ways, cause misunderstanding easily, influence vehicle and pass through speed.
The purpose of this utility model is the deficiency that prior art is existed, provide several and make sensor, and can distinguish the brake of emergency brake and foresight, have and refuel turn off the light simple in structure, the stable performance of function, the emergency brake that cost is low, the life-span is long and easy for installation and give alarm device with non-contact type electronic switch and relative trigger body.The utility model has following accompanying drawing: Fig. 1. circuit block diagram; Fig. 2 a. Hall switch internal circuit block diagram; Fig. 2 b. inductance is near switch internal circuit block diagram; Fig. 2 c. inductance is near the switch external interconnecting wiring diagram; Fig. 2 d. photoelectric switch physical construction scheme drawing; Fig. 3. make the schematic circuit diagram of sensor with photoelectric switch; Fig. 4. make the schematic circuit diagram of sensor with Hall switch; Fig. 5. make the schematic circuit diagram of sensor near switch with inductance; What Fig. 6 a. photoelectric switch and shade were installed on accelerator pedal arm lower semisection and car body faces and lateral plan; What Fig. 6 b. photoelectric switch and shade were installed on accelerator pedal arm upper semisection and car body faces and lateral plan;
The utility model is by signal transducer, promptly subtracting oily signal deteching circuit and lighting control circuit forms, it is characterized in that: signal transducer is the photoelectric switch GDK1 that can detect accelerator pedal position by two, GDK2 and a shade (12) two parts are formed, if the light receiving window of photoelectric switch is designed to open type, then shade (12) should be that an area is a bit larger tham the opaque sheet thing that light receiving window also can cover light receiving window fully, when shade (12) when not covering light receiving window, photoelectric switch GDK1 and GDK2 are in the normal state, it is output as high potential, when shade (12) when covering light receiving window, GDK1 and GDK2 are in the attitude that is excited, and it is output as active potential; If the light receiving window of photoelectric switch is designed to closed type, then shade (12) should be an opaque sheet thing that has the printing opacity aperture that area is bigger, usually, light receiving window is covered fully, photoelectric switch GDK1 and GDK2 are in the normal state, and are output as high potential, have only when aperture and light receiving window meet, GDK1 and GDK2 are in the attitude that is excited, and are output as active potential; These two parts of photoelectric switch GDK1, GDK2 and shade (12), wherein a side is fixed on the accelerator pedal arm (10), move with Das Gaspedal (11), the opposing party is fixed on the corresponding position on the car body (15), it is the center of circle that the position of photoelectric switch GDK1 and GDK2 is in rotating shaft (14), with r is on the circumference of radius, and both angles are Φ
12, when throttle is zero, should make shade (12) and photoelectric switch GDK1 keep certain distance, this initial angle is called Φ
0, and GDK1 and GDK2 are in the normal state; During oiling, Das Gaspedal (11) moves downward, and successively makes two photoelectric switch GDK1 and GDK2 and shade (12) meet and be excited, meet earlier for GDK1, after meet be GDK2.
Promptly subtract oily signal deteching circuit and comprise a timing circuit DS1 and two parts of one two input end " with door " circuit YM: wherein timing circuit DS1 is connected with the positive pole of capacitor C 11 by resistance R 9, the other end power connection positive pole of R9, the negative earth of C11, the node of R9 and C11 is connected on the RC charge-discharge circuit that is constituted on the mouth of photoelectric switch GDK2, and its timing length is t1; Two input ends " with door " circuit YM is that the positive pole by diode D12 is connected on R9 and the C11 node as an input end, the positive pole of diode D13 is connected on the mouth of photoelectric switch GDK1 as another input end, resistance R 14 1 end ground connection, the other end is connected on the common node M together mutually with the negative pole of D12 and D13, and the M point is the mouth of " with door " circuit;
Lighting control circuit comprises a timing circuit DS2, switch circuit KG and oiling turn off the light three part: DS2 of circuit JYMD be with 555 o'clock the base chip IC 17 be core, its negative power end 1 ground connection, trigger end 2 is connected on the common node M, its positive power source terminal 8 power connection positive poles, reset terminal 4 is connected on the mouth of GDK1, control end 5 is by capacitor C 18 ground connection, behind threshold values end 6 and discharge end 7 short circuits, be connected together mutually with the end of timing resistor R15 and the positive terminal of timing capacitor C16 again, the other end power connection positive pole of R15, the negative earth of C16 is made mouth with IC17 mouth 3, the univibrator timing circuit that is constituted, regularly length is t2; Switch circuit KG is that the base stage by aerotron T21 is connected on the mouth 3 of IC17 by resistance R 19, collecting electrode is connected on the positive source by resistance R 20, grounded emitter, the grid G of high-power P channel mosfet pipe MSP22 is connected on the collecting electrode of aerotron T21, its source S power connection positive pole, its drain D be connected on the next contact of foot brake K switch 23 constitute; Oiling turn off the light circuit JYMD be 555 o'clock the base chip IC 17 reset terminal 4 be connected on the mouth of GDK1, when utilizing it to be triggered output active potential IC17 is resetted, stoplight stop lamp L24 is extinguished.
Wherein GDK1 is made up of photo-transistor T1, light-emitting diode D3 and current-limiting resistance R2 and R4, GDK2 is made up of light-emitting diode D6, photo-transistor T8, current-limiting resistance R5, R7 and aerotron T10, photoelectric switch GDK1 and GDK2 are direct-injection types, the luminous direct projection of D3 is to the light receiving window of T1, and the luminous direct projection of D6 is to the light receiving window of T8.The size of radius r is to allow in the position of installation according to accelerator pedal arm, and some are convenient to install for well so slightly greatly to get the r value; Angle Φ between photoelectric switch GDK1 and the GDK2
12Size by two conditional decisions: the one, can not make shade (12) trigger two photoelectric switchs simultaneously, the 2nd, satisfy following relation: Ω=Φ
12/ t1, wherein, t1 is the timing length of timing circuit DS1, Ω be builder or user definition promptly subtract oil the time the cireular frequency of accelerator pedal arm.
If the light receiving window of photoelectric switch is an open type, then the bus connection method of GDK1 and GDK2 is: the collecting electrode power connection positive pole of T1, emitter is by resistance R 2 ground connection, D3 be connected across between the power positive cathode after R4 connects, the positive pole of D3 points to positive source, its negative pole points to power cathode, and the emitter of T1 is the mouth of GDK1; The T8 grounded emitter, collecting electrode is by resistance R 7 power connection positive poles, D6 be connected across between the power positive cathode after R5 connects, the positive pole of D6 points to positive source, its negative pole points to power cathode, and the base stage of T10 is connected on the collecting electrode of T8, the grounded emitter of T10, the collecting electrode of T10 is connected on the node of R9 and C11, and it is the mouth of GDK2;
If light receiving window is a closed type, then the bus connection method of GDK1 and GDK2 is: the grounded emitter of T1, its collecting electrode is by resistance R 2 power connection positive poles, D3 be connected across between the power positive cathode after R4 connects, the positive pole of D3 points to positive source, its negative pole points to power cathode, and the collecting electrode of T1 is the mouth of GDK1; T8 collecting electrode power connection positive pole, emitter is by resistance R 7 ground connection, D6 be connected across between the power positive cathode after R5 connects, the positive pole of D6 points to positive source, its negative pole points to power cathode, and the base stage of T10 is connected on the emitter of T8, the T10 grounded emitter, the collecting electrode of T10 is connected on the node of R9 and C11, and it is the mouth of GDK2;
The positive source of entire circuit is to be connected on the positive pole of storage battery by key switch K0, does not only power saving but also safety like this.Following to make sensor and light receiving window with photoelectric switch be that the scheme of open type is an example, and entire work process is described:
Slower when the speed of a motor vehicle, the corner that makes accelerator pedal arm (10) is less than predetermined value (Φ
0+ Φ
12) time, because accelerator pedal arm (10) does not reach the position that makes shade (12) trigger GDK2 as yet, in this case, it is fast and slow no matter to subtract speed oil, GDK2 all is in the normal state, photo-transistor T8 is in conducting state, the collecting electrode of aerotron T10 is in high potential always, then the M point also is in high potential always, and IC17 can not be triggered, and its mouth 3 is in active potential always, aerotron T21 is in off condition, therefore, high-power P channel mosfet switching valve MSP22 also is in off condition, and then stoplight stop lamp can not be lighted.
Very fast when the speed of a motor vehicle, the corner that makes accelerator pedal arm (10) is more than or equal to predetermined value (Φ
0+ Φ
12) time, subtract oil this moment, following two kinds of situations may occur:
. when promptly subtracting oil, the cireular frequency that is accelerator pedal arm is more than or equal to Ω, Das Gaspedal is quick upward movement under the effect of retracing spring (13), at first make shade (12) through photoelectric switch GDK2, this moment, photo-transistor T8 ended, aerotron T10 conducting, the electric charge on the capacitor C 11 be by aerotron T10 discharge, makes that capacitor C 11 positive terminals are instantaneous to become active potential by high potential, when shade (12) leaves GDK2, T10 turn-offs immediately, and by resistance R 9 chargings, t1 is after the time for process again for capacitor C 11, fill into high potential on the C11 again, so in the time, an active potential is added in the positive pole of diode D12 at t1 always; Because it is very fast to subtract the speed of oil, then accelerator pedal arm just turns back to the position of photoelectric switch GDK1 at t1 in the time, photo-transistor T1 is ended, and its emitter is instantaneous to become active potential by high potential, at this moment, the M point becomes active potential, timing circuit DS2 is triggered, so its mouth 3 becomes high potential, then aerotron T21 and the conducting of high-power P channel mosfet pipe are lighted stoplight stop lamp.If no longer touch on the brake, then the time t2 rear brake lamp of setting through DS2 just extinguishes automatically.
When .. subtracting oil at a slow speed, the cireular frequency that is accelerator pedal arm is less than Ω, because the kinematic velocity of Das Gaspedal is slower, its used time from GDK2 to GDK1 surpasses schedule time t1, so, cover the light receiving window of photoelectric switch GDK1 when shade (12), make the active potential of the emitter output of photo-transistor T1 be added in D13 when anodal, at this moment, because it is that the active potential of t1 disappears that timing circuit DS1 is added in time length on the diode D12 positive pole, the positive pole of D12 has become high potential, and therefore, the M point has no chance to become active potential, so timing circuit DS2 can not be triggered, its mouth 3 is always active potential, so aerotron T21 and MSP22 are in off condition, stoplight stop lamp is not lighted.
During oiling, Das Gaspedal moves downward, and GDK1 is triggered earlier, but because the low-potential signal of its output is not delayed, so Das Gaspedal one is left GDK1, its output signal also disappears immediately, it can't with the active potential of GDK2 output " with ", so stoplight stop lamp can not lighted.
The oiling problem of turning off the light, if stoplight stop lamp is just lighted by switch circuit KG, refuel when quickening again at once, when Das Gaspedal moves downward once more, at first pass through photoelectric switch GDK1, then the active potential of GDK1 output acts on 4 ends of IC17, forces IC17 to reset, make its 3 ends become active potential by high potential, stoplight stop lamp extinguishes immediately.
Bottom makes brief description to the situation that adopts Hall switch to make sensor:
Signal transducer also can be made up of two Hall switch HRK1, HRK2 and permanent magnets that can detect accelerator pedal position.HRK1 is made up of Hall switch chip H27 and resistance R 26, the model of H27 can be UGN3144, its positive power source terminal 1 power connection positive pole, negative power end 2 ground connection, mouth 3 is by resistance R 26 power connection positive poles, its 3 ends also are the mouths of HRK1, the positive pole of diode D13 and the reset terminal of IC17 4 are connected on here, and HRK1 output high potential when H27 is triggered is when permanent magnet during near H27, H27 is triggered, and HRK1 exports active potential; HRK2 is made up of Hall switch chip H28, the model of H28 also can be UGN3144, its 1 termination power positive pole, 2 end ground connection, mouth 3 also is the mouth of HRK2 simultaneously, and it is connected on resistance R 9 and capacitor C 11 nodes, HRK2 output high potential when H28 is not triggered, when H28 is triggered, HRK2 exports active potential.
The following situation that the three-way NPN type of employing inductance type direct current is made sensor near switch is made brief description:
Signal transducer also can be made up of near switch DGK1, DGK2 and an iron plate two three-way NPN types of inductance type direct current that can detect accelerator pedal position, and wherein DGK1 is made up of near switch chip DG31 and resistance R 26 the three-way NPN type of inductance type direct current.The model of DG31 can be the G11 type of being produced by Dongtou County, Zhejiang sensor factory, its positive power source terminal 1 power connection positive pole, negative power end 2 end ground connection, mouth 3 is by resistance R 26 power connection positive poles, its 3 ends are mouths of DGK1, and the positive pole of diode D13 and the reset terminal of IC17 4 are connected on here.DGK1 output high potential when DG31 is triggered, when iron plate during near it, DG31 is triggered, and DGK1 exports active potential.DGK2 also is made up of near switch DG32 a three-way NPN type of inductance type direct current, the model of DG32 also can be the G11 type, its positive power source terminal 1 power connection positive pole, negative power end 2 ground connection, mouth 3 also are the mouths of inductance approach switch DGK2, and it is connected on resistance R 9 and capacitor C 11 nodes, when DG32 is not triggered, inductance approach switch DGK2 exports high potential, and when DG32 is triggered, DGK2 exports active potential.
If replace photoelectric switch GDK1 and GDK2 respectively near switch DGK1 and DGK2 with Hall switch HRK1 and HRK2 or the three-way NPN type of inductance type direct current, with follow-up promptly subtract oily signal deteching circuit and lighting control circuit combined, all can finish above-mentioned repertoire, and, its principle of work and working process are just the same, no longer repeat here.
Advantage of the present utility model is, (1) use non-contact type electronic switch as sensor, its speed of response is fast, and the life-span is long, in light weight, volume is little, installs easily, and because its output signal is a switching value, this makes signal deteching circuit and follow-up circuit layout simple, do not have linear amplifying circuit, debugging is easy, and antijamming capability is strong; (2) can distinguish the brake of emergency brake and foresight again; (3) have and refuel the function of turning off the light, just can turn off the light during oiling, lighted at once in case it has overcome the stoplight stop lamp of prior art existence, just must wait until that preset time finishes the shortcoming of just extinguishing, and when having solved gearshift, lights stoplight stop lamp, cause misunderstanding, the problem of influence back car cruising; (4) by regulating throttle predetermined value (Φ
0+ Φ
12) size, can be provided with and give the alert minimum speed of a motor vehicle, can prevent that like this speed of a motor vehicle is very low in when traffic congestion, but constantly start to walk, subtract oil and brake, can be too frequent light stoplight stop lamp, disturb back car driver, waste electric power.Because give alert Timing Advance be converted into can offer extra brake that the back car utilizes apart from the time, be directly proportional with the speed of a motor vehicle, so the speed of a motor vehicle is high more, and to give alert meaning just big more, it is just not obvious to give alert effect when the speed of a motor vehicle is too low.(5) use high-power P channel mosfet pipe as electronic switch, it is faster than relay speed of response, and the life-span prolongs greatly, and price is also more cheap than relay.So, the advantage that the utlity model has simple in structure, stable performance, install easily, the life-span is long, cost is low, function is strong.
Claims (7)
1. a brake of motor-driven vehicle gives alarm device, comprise signal transducer, promptly subtract oily signal deteching circuit and lighting control circuit, it is characterized in that: signal transducer is made up of two photoelectric switch GDK1, GDK2 and an opaque shade (12) two parts that can detect accelerator pedal position; Wherein a side is fixed on the accelerator pedal arm (10), with Das Gaspedal (11) motion, the opposing party is fixed on the corresponding position on the car body (15), and it is the center of circle that the position of photoelectric switch GDK1 and GDK2 is in rotating shaft (14), with r is on the circumference of radius, and both angles are Φ
12, when throttle is zero, should make shade (12) and photoelectric switch GDK1 keep certain distance, this initial angle is called Φ
0, GDK1 and GDK2 all are in the normal state, it is output as high potential; During oiling, Das Gaspedal (11) moves downward, successively make two photoelectric switch GDK1 and GDK2 and shade (12) meet and be triggered, at this moment, GDK1 and GDK2 become excitation state in succession, it is output as active potential, in case shade (12) is left away, GDK1 and GDK2 return to normal again, and its output becomes high potential again, meet earlier for GDK1, after meet be GDK2;
Promptly subtract oily signal deteching circuit, comprise a timing circuit DS1 and two parts of one two input end " with door " circuit YM: wherein timing circuit DS1 is that resistance R 9 is connected with the positive pole of capacitor C 11, the other end power connection positive pole of R9, the negative earth of C11, the node of R9 and C11 is connected on the RC charge-discharge circuit that is constituted on the mouth of photoelectric switch GDK2, and its timing length is t1; Two input ends " with door " circuit YM is that the positive pole by diode D12 is connected on R9 and the C11 node as an input end, the positive pole of diode D13 is connected on the mouth of photoelectric switch GDK1 as another input end, resistance R 14 1 end ground connection, the other end is connected on the common node M together mutually with the negative pole of D12 and D13, and the M point is the mouth of " with door " circuit;
Lighting control circuit comprises: timing circuit DS2, switch circuit KG and oiling three parts of circuit JYMD of turning off the light; DS2 be with 555 o'clock the base chip IC 17 be core, its negative power end 1 ground connection, trigger end 2 is connected on the common node M, its positive power source terminal 8 power connection positive poles, reset terminal 4 is connected on the mouth of GDK1, control end 5 is by capacitor C 18 ground connection, behind threshold values end 6 and discharge end 7 short circuits, be connected together mutually with the end of timing resistor R15 and the positive terminal of timing capacitor C16 again, the other end power connection positive pole of R15, the negative earth of C16 is made mouth with IC17 mouth 3, the univibrator timing circuit that is constituted, regularly length is t2; Switch circuit KG is that the base stage by aerotron T21 is connected on the mouth 3 of IC17 by resistance R 19, collecting electrode is connected on the positive source by resistance R 20, grounded emitter, the grid G of high-power P channel mosfet pipe MSP22 is connected on the collecting electrode of aerotron T21, its source S power connection positive pole, its drain D be connected on the next contact of foot brake K switch 23 constitute; Oiling turn off the light circuit MD be 555 o'clock the base chip IC 17 reset terminal 4 be connected on the mouth of GDK1, when utilizing it to be triggered output active potential IC17 is resetted, stoplight stop lamp L24 is extinguished.
2. alarm device is given in said brake according to claim 1, it is characterized in that: the light receiving window of photoelectric switch GDK1 and GDK2 is an open type, GDK1 is made up of photo-transistor T1, light-emitting diode D3 and resistance R 2 and R4, the collecting electrode power connection positive pole of T1, emitter is by resistance R 2 ground connection, D3 be connected across between the power positive cathode positive pole sensing positive source of D3 after R4 connects, its negative pole points to power cathode, and the emitter of T1 is the mouth of GDK1; GDK2 is made up of light-emitting diode D6, photo-transistor T8, resistance R 5, R7 and aerotron T10, the T8 grounded emitter, collecting electrode is by resistance R 7 power connection positive poles, D6 be connected across between the power positive cathode after R5 connects, the positive pole of D6 points to positive source, its negative pole points to power cathode, the base stage of T10 is connected on the collecting electrode of T8, the grounded emitter of T10, the collecting electrode of T10 are connected on the node of R9 and C11, and it is the mouth of GDK2; GDK1 and GDK2 are the direct-injection type photoelectric switchs, and the luminous direct projection of D3 is to the light receiving window of T1, and the luminous direct projection of D6 is to the light receiving window of T8.
3. alarm device is given in said brake according to claim 1, it is characterized in that: the light receiving window of photoelectric switch GDK1 and GDK2 is a closed type, GDK1 is made up of photo-transistor T1, light-emitting diode D3 and resistance R 2 and R4, the grounded emitter of T1, its collecting electrode is by resistance R 2 power connection positive poles, D3 be connected across between the power positive cathode positive pole sensing positive source of D3 after R4 connects, its negative pole points to power cathode, and the collecting electrode of T1 is the mouth of GDK1; GDK2 is made up of photo-transistor T8, light-emitting diode D6, resistance R 5, R7 and aerotron T10, T8 collecting electrode power connection positive pole, emitter is by resistance R 7 ground connection, D6 be connected across between the power positive cathode after R5 connects, the positive pole of D6 points to positive source, its negative pole points to power cathode, the base stage of T10 is connected on the emitter of T8, T10 grounded emitter, the collecting electrode of T10 are connected on the node of R9 and C11, and it is the mouth of GDK2; GDK1 and GDK2 are the direct-injection type photoelectric switchs, and the luminous direct projection of D3 is to the light receiving window of T1, and the luminous direct projection of D6 is to the light receiving window of T8.
4. a brake of motor-driven vehicle gives alarm device, comprise signal transducer, promptly subtract oily signal deteching circuit and lighting control circuit, it is characterized in that: signal transducer is the Hall switch HRK1 that can detect accelerator pedal position by two, HRK2 and permanent magnet two parts are formed: wherein a side is fixed on the accelerator pedal arm (10), move with Das Gaspedal (11), the opposing party is fixed on the corresponding position on the car body (15), Hall switch HRK1, it is the center of circle that the position of HRK2 is in rotating shaft (14), with r is on the circumference of radius, when throttle is zero, should make permanent magnet and Hall switch HRK1 keep certain distance, and HRK1 and HRK2 all are in the normal state, it is output as high potential; During oiling, Das Gaspedal (11) moves downward, and successively makes two Hall switch HRK1 and HRK2 and permanent magnet meet and be triggered, and makes Hall switch HRK1 and HRK2 be in excitation state, and it is output as active potential; Be triggered earlier for HRK1, after be triggered be HR2.
5. alarm device is given in said brake according to claim 4, it is characterized in that: Hall switch HRK1 is made up of Hall switch chip H27 and resistance R 26, the model of H27 can be UGN3144, its positive power source terminal 1 power connection positive pole, negative power end 2 ground connection, mouth 3 is by resistance R 26 power connection positive poles, and its 3 ends also are the mouths of HRK1; Hall switch HRK2 is made up of Hall switch chip H28, and the model of H28 also can be UGN3144, its 1 termination power positive pole, and 2 end ground connection, mouth 3 also is the mouth of HRK2 simultaneously; HRK1 and HRK2 are not in the normal state when H27 and H28 are triggered, and it is output as high potential, when permanent magnet near H27 and H27, when it was triggered, HRK1 and HRK2 were in the attitude that is excited, it is output as active potential.
6. a brake of motor-driven vehicle gives alarm device, comprise signal transducer, promptly subtract oily signal deteching circuit and lighting control circuit, it is characterized in that: to be two three-way NPN types of inductance type direct current that can detect accelerator pedal position form near switch DGK1 and DGK2 and a small iron plate signal transducer: wherein a side is fixed on the accelerator pedal arm (10), move with Das Gaspedal (11), the opposing party is fixed on the corresponding position on the car body (15), it is the center of circle that the position of DGK1 and DGK2 is in rotating shaft (14), is on the circumference of radius with r; When throttle is zero, should make small iron plate and DGK1 keep certain distance, and DGK1 and DGK2 all are in the normal state, it is output as high potential; During oiling, Das Gaspedal (11) moves downward, and successively makes DGK1 and DGK2 and small iron plate meet and be triggered, and makes DGK1 and DGK2 be in excitation state, and it is output as active potential; Be triggered earlier for DGK1, after be triggered be DDGK2.
7. alarm device is given in said brake according to claim 6, it is characterized in that: wherein DGK1 is made up of near switch chip DG31 and resistance R 26 the three-way NPN type of inductance type direct current, the model of DG31 can be the G11 type, its positive power source terminal 1 power connection positive pole, negative power end 2 ground connection, mouth 3 is by resistance R 26 power connection positive poles, and its 3 ends are mouths of DGK1; DGK2 also is made up of near switch chip DG32 a three-way NPN type of inductance type direct current, and the model of DG32 also can be the G11 type, its positive power source terminal 1 power connection positive pole, and negative power end 2 ground connection, mouth 3 is mouths of inductance approach switch DGK2; When DG31 and DG32 were not triggered, inductance approach switch DGK1 and DGK2 were in the normal state, and it is output as high potential, and as close DG31 of small iron plate and DG32, when it was triggered, DGK1 and DGK2 were in excitation state, and it is output as active potential.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211066 CN2371074Y (en) | 1999-05-18 | 1999-05-18 | Early warning device for motor-vehicle braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99211066 CN2371074Y (en) | 1999-05-18 | 1999-05-18 | Early warning device for motor-vehicle braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371074Y true CN2371074Y (en) | 2000-03-29 |
Family
ID=34004088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99211066 Expired - Fee Related CN2371074Y (en) | 1999-05-18 | 1999-05-18 | Early warning device for motor-vehicle braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371074Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004016463A1 (en) * | 2002-08-19 | 2004-02-26 | Tianshu Yang | A prevention method-system against vehicle chase-collision |
| CN102126464A (en) * | 2011-01-27 | 2011-07-20 | 张尔利 | Quickly loosened accelerator pre-warning and brake vehicle door locking device |
| CN104972963A (en) * | 2014-04-02 | 2015-10-14 | 郭爱力 | Brake early-warning signal system preventing rear-end collision and maloperation |
| CN114148253A (en) * | 2022-01-04 | 2022-03-08 | 一汽解放汽车有限公司 | Brake lamp switch and brake system |
-
1999
- 1999-05-18 CN CN 99211066 patent/CN2371074Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004016463A1 (en) * | 2002-08-19 | 2004-02-26 | Tianshu Yang | A prevention method-system against vehicle chase-collision |
| CN102126464A (en) * | 2011-01-27 | 2011-07-20 | 张尔利 | Quickly loosened accelerator pre-warning and brake vehicle door locking device |
| CN102126464B (en) * | 2011-01-27 | 2013-01-09 | 张尔利 | Quickly loosened accelerator pre-warning and brake vehicle door locking device |
| CN104972963A (en) * | 2014-04-02 | 2015-10-14 | 郭爱力 | Brake early-warning signal system preventing rear-end collision and maloperation |
| CN114148253A (en) * | 2022-01-04 | 2022-03-08 | 一汽解放汽车有限公司 | Brake lamp switch and brake system |
| CN114148253B (en) * | 2022-01-04 | 2023-12-12 | 一汽解放汽车有限公司 | Brake lamp switch and brake system |
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