CN102923083A - Intelligent automatic bumper for automobile - Google Patents

Abstract

The invention discloses an intelligent automatic bumper for an automobile. By the bumper, the automobile can be prevented from colliding a front target, and a rear automobile can also be automatically prevented from being collided; and when the front and rear converging attack accidents cannot be avoided, the optimum processing scheme can also be selected automatically, and different safety speeds and distances can also be set according to different road surfaces, different load capacities, and different weather conditions, and the accidents are avoided as much as possible. The intelligent automatic bumper for the automobile is characterized by consisting of a speed sensor H1, an oscillating circuit ZD, distance measurement sensors H2 and H3, potentiometers RP1 and RP2, voltage division circuits R1, R2 and R3, a multi-voltage comparator IC1, a trigger IC2, a sound device BL, relays JD1 and JD2, a motor M, a power device T, switches S and VT, a power supply E and corresponding peripheral components; and the comparator is used for comparing speed voltage and distance voltage, corresponding brake, acceleration and deceleration commands are generated according to the set standard, and the commands are executed by a servo mechanism.

Description

The full automatic vehicle automatic bumper

Technical field: the present invention relates to a kind of automatic bumper for car, especially a kind of full automatic vehicle automatic bumper belongs to the automotive safety control field.

Background technology: have 70% traffic accident to be because collision occurs, but the present technical measures of taking are passive mode mostly, such as safety strap, air bag, ABS, ASR etc., safety strap and air bag belong to passive device, can only alleviate occupant's injury when accident occurs.Generation that can not Accident prevention.Sideslip when ABS, ASR also can only prevent from braking, but increased stopping distance, increased new bump accident potential.Aspect initiatively crashproof, substantially be divided into two class kinds, crashproof prompting early warning one class can only play suggesting effect, automatic collision one class, only have initiatively a kind of function of crashproof the place ahead target, be typically the automatic bumper for car of safe company far away invention, and for how initiatively to prevent from being knocked into the back, or how front and back to process when having bump dangerous, all can't solve.

Summary of the invention: in order to address the above problem, the invention provides a kind of full automatic vehicle automatic bumper, can automatic collision the place ahead target, can automatically prevent from being hit by rear car again, when front and back pincer attack accident is inevitable, can automatically preferentially take the optimization process scheme, loss is dropped to minimum level; Again can be according to different road surfaces, different load carrying ability, the different weather situation is set different safety speeds and safety distance, avoid as much as possible accident to occur, realize that the technical scheme that foregoing invention is taked is characterised in that: by speed sensor H1, oscillating circuit ZD, distance measuring sensor H2, H3, potential device RP1, RP2, bleeder circuit R1, R2, R3, multivoltage comparator IC1, binary pair IC2, acoustic device BL, relay J D1, JD2, electrical motor M, engine installation T, switch S, VT, power supply E and corresponding peripheral component form; Power supply E takes from vehicle power, its both positive and negative polarity is connected with the both positive and negative polarity of each device circuitry respectively, switch S is serially connected in the outlet line of E, car speed sensor H1 can convert the speed of a motor vehicle to the in proportion device of voltage signal, also can be from the direct extraction voltage signal of wheat speed table, the output of voltage signal through behind the potential device RP1 again after bleeder circuit R1, R2, R3 dividing potential drop with two groups of comparator A, B of comparator IC1, just relatively end be connected; Voltage E is connected with the positive pin of C group comparator through RP2, three groups of output A of IC1, and B, C are connected with D1, D2, the D3 pin of IC2 respectively; The pulse output of oscillating circuit ZD and rang sensor H2, the trigger end of H3 connects, H2, H3 can be a kind of of photoelectricity, microwave, machine vision range finding, be installed in respectively before and after the car, if front two kinds, can install more several, in case leak-stopping falls object; After H2 converts range signal to power supply signal, be connected with the A of IC1, the negative pin of two groups of comparators of B respectively, be connected with the CP end of three groups of binary pairs of IC2 respectively again, the bearing relatively to hold of the output of H3 and C group comparator is connected; The Q1 of IC2, Q3 output is connected respectively with the rotating control end of relay J D1, Q2 output and the switching controls end of relay J D2 are connected control end and are connected with VD, Q1, Q2, the output of Q3 connects from the trigger end of three kinds of different voice prompts of acoustic device BL respectively again, and VD is connected in the loop of Q3; The output of JD1 is connected with electrical motor M coil, by the rotating drive throttle acceleration or deceleration of M; The A road of JD2 is serially connected in the circuit of high-tension coil, and engine installation T is serially connected in the B road, and T is connected with drg, to drive brake; Its working process is: speed of a motor vehicle voltage signal dividing potential drop be early warning decelerating voltage and emergency brake velocity voltage standard be in treat the newspaper than state, the frequency of oscillating circuit ZD is range frequency, what record compares apart from voltage and velocity standard voltage, when not having collision risk, what comparator was exported all is low level, and subsequent conditioning circuit can not start, current square mesh mark object distance is more nearby when early warning should be slowed down, D1, Q1 can export high level, the early warning and reducing speed now of sounding; When distance very near, in the time of should braking, D2, Q2 can export high level, sends urgent early warning and starts brake; In the time that front vehicle is in safety distance, the voltage of H2 is greater than RP2 voltage, and D3 is low level, when having by rear end collision, H2 voltage is less than RP voltage, D3, Q3 can export high level, if this moment, the place ahead did not have output command, and then can Acceleration of starting, initiatively widen and rear spacing, if there is output command in the place ahead, then VD conducting, assisted instruction is forbidden by short circuit, preferentially carries out the brake instruction, would rather be knocked into the back, do not hit the place ahead target yet, loss is dropped to minimum; By the height of RP capable of regulating standard comparative voltage, to set different road surfaces, different load carrying ability, the safety distance of different weather situation; Beneficial effect of the present invention is: significantly reduce traffic accident, guarantee traffic safety, further specify below in conjunction with drawings and Examples.

Accompanying drawing is full automatic vehicle automatic bumper electricity principle and actuating unit block diagram

Embodiment, shown in the drawings being characterised in that: by speed sensor H1, oscillating circuit ZD, distance measuring sensor H2, H3, potential device RP1, RP2, bleeder circuit R1, R2, R3, multivoltage comparator IC1, binary pair IC2, acoustic device BL, relay J D1, JD2, electrical motor M, engine installation T, switch S, VT, power supply E and corresponding peripheral component form; Power supply E takes from vehicle power, its both positive and negative polarity is connected with the both positive and negative polarity of each device circuitry respectively, switch S is serially connected in the outlet line of E, car speed sensor H1 can convert the speed of a motor vehicle to the in proportion device of voltage signal, also can be from the direct extraction voltage signal of wheat speed table, the output of voltage signal through behind the potential device RP1 again after bleeder circuit R1, R2, R3 dividing potential drop with two groups of comparator A, B of comparator IC1, just relatively end be connected; Voltage E is connected with the positive pin of C group comparator through RP2, three groups of output A of IC1, and B, C are connected with D1, D2, the D3 pin of IC2 respectively; The pulse output of oscillating circuit ZD and rang sensor H2, the trigger end of H3 connects, H2, H3 can be a kind of of photoelectricity, microwave, machine vision range finding, be installed in respectively before and after the car, if front two kinds, can install more several, in case leak-stopping falls object; After H2 converts range signal to power supply signal, be connected with the A of IC1, the negative pin of two groups of comparators of B respectively, be connected with the CP end of three groups of binary pairs of IC2 respectively again, the bearing relatively to hold of the output of H3 and C group comparator is connected; The Q1 of IC2, Q3 output is connected respectively with the rotating control end of relay J D1, Q2 output and the switching controls end of relay J D2 are connected control end and are connected with VD, Q1, Q2, the output of Q3 connects from the trigger end of three kinds of different voice prompts of acoustic device BL respectively again, and VD is connected in the loop of Q3; The output of JD1 is connected with electrical motor M coil, by the rotating drive throttle acceleration or deceleration of M; The A road of JD2 is serially connected in the circuit of high-tension coil, and engine installation T is serially connected in the B road, and T is connected with drg, to drive brake; Its working process is: speed of a motor vehicle voltage signal dividing potential drop be early warning decelerating voltage and emergency brake velocity voltage standard be in treat the newspaper than state, the frequency of oscillating circuit ZD is range frequency, what record compares apart from voltage and velocity standard voltage, when not having collision risk, what comparator was exported all is low level, and subsequent conditioning circuit can not start, current square mesh mark object distance is more nearby when early warning should be slowed down, D1, Q1 can export high level, the early warning and reducing speed now of sounding; When distance very near, in the time of should braking, D2, Q2 can export high level, sends urgent early warning and starts brake; In the time that front vehicle is in safety distance, the voltage of H2 is greater than RP2 voltage, and D3 is low level, when having by rear end collision, H2 voltage is less than RP voltage, D3, Q3 can export high level, if this moment, the place ahead did not have output command, and then can Acceleration of starting, initiatively widen and rear spacing, if there is output command in the place ahead, then VD conducting, assisted instruction is forbidden by short circuit, preferentially carries out the brake instruction, would rather be knocked into the back, do not hit the place ahead target yet, loss is dropped to minimum; By the height of RP capable of regulating standard comparative voltage, to set different road surfaces, different load carrying ability, the safety distance of different weather situation.

Claims (5)

1. the full automatic vehicle automatic bumper is characterised in that: by speed sensor H1, and oscillating circuit ZD, distance measuring sensor H2, H3, potential device RP1, RP2, bleeder circuit R1, R2, R3, multivoltage comparator IC1, binary pair IC2, acoustic device BL, relay J D1, JD2, electrical motor M, engine installation T, switch S, VT, power supply E and corresponding peripheral component form; Power supply E takes from vehicle power, its both positive and negative polarity is connected with the both positive and negative polarity of each device circuitry respectively, switch S is serially connected in the outlet line of E, the output of car speed sensor H1 voltage signal through behind the potential device RP1 again after bleeder circuit R1, R2, R3 dividing potential drop with two groups of comparator A, B of comparator IC1, just relatively end be connected; Voltage E is connected with the positive pin of C group comparator through RP2, three groups of output A of IC1, and B, C are connected with D1, D2, the D3 pin of IC2 respectively; The pulse output of oscillating circuit ZD and rang sensor H2, the trigger end of H3 connects, after H2 converts range signal to power supply signal, be connected with the A of IC1, the negative pin of two groups of comparators of B respectively, is connected with the CP end of three groups of binary pairs of IC2 respectively again, the bearing relatively to hold of the output of H3 and C group comparator is connected; The Q1 of IC2, Q3 output is connected respectively with the rotating control end of relay J D1, Q2 output and the switching controls end of relay J D2 are connected control end and are connected with VD, Q1, Q2, the output of Q3 connects from the trigger end of three kinds of different voice prompts of acoustic device BL respectively again, and VD is connected in the loop of Q3; The output of JD1 is connected with electrical motor M coil, by the rotating drive throttle acceleration or deceleration of M; The A road of JD2 is serially connected in the circuit of high-tension coil, and engine installation T is serially connected in the B road, and T is connected with drg, to drive brake; Its working process is: speed of a motor vehicle voltage signal dividing potential drop be early warning decelerating voltage and emergency brake velocity voltage standard be in treat the newspaper than state, the frequency of oscillating circuit ZD is range frequency, what record compares apart from voltage and velocity standard voltage, when not having collision risk, what comparator was exported all is low level, and subsequent conditioning circuit can not start, current square mesh mark object distance is more nearby when early warning should be slowed down, D1, Q1 can export high level, the early warning and reducing speed now of sounding; When distance very near, in the time of should braking, D2, Q2 can export high level, sends urgent early warning and starts brake; In the time that front vehicle is in safety distance, the voltage of H2 is greater than RP2 voltage, and D3 is low level, when having by rear end collision, H2 voltage is less than RP voltage, D3, Q3 can export high level, if this moment, the place ahead did not have output command, and then can Acceleration of starting, initiatively widen and rear spacing, if there is output command in the place ahead, then VD conducting, assisted instruction is forbidden by short circuit, preferentially carries out the brake instruction, would rather be knocked into the back, do not hit the place ahead target yet, loss is dropped to minimum.

2. car speed sensor H1 claimed in claim 1 is characterised in that: be the speed of a motor vehicle to be converted to the in proportion device of voltage signal, and also can be from the direct extraction voltage signal of wheat speed table.

3. .H2 claimed in claim 1, H3 is characterised in that: can be a kind of of photoelectricity, microwave, machine vision range finding, be installed in respectively before and after the car, if front two kinds, can install more several, in case leak-stopping falls object.

4. IC2 claimed in claim 1 is characterised in that: can be binary pair, also can be other decisions circuit that possess identical function.

5. the full automatic vehicle automatic bumper is characterised in that: with bleeder circuit R1, R2, R3, speed of a motor vehicle voltage is divided into deceleration and the two kinds of normal voltages of braking; And respectively by voltage comparator with compare apart from voltage, generate to slow down and the brake instruction according to comparative result.

6 full automatic vehicle automatic bumpers are characterised in that: adjust standard voltage value with potential device RP1, RP2, to adapt to different road surfaces, different load carrying ability, the needed different safety speeds of different weather situation and safety distance need.

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