A kind of intelligent deceleration alarm set
Technical field
The utility model belongs to automobile technical field, relates to a kind of intelligent deceleration alarm set
Background technology
Along with expanding economy, private car has quantity at present sharply increases.Providing row for people simultaneously easily, also brought certain traffic hidden danger.The knocking into the back one to account for be the major part of many traffic accidents of automobile; Especially descend in overcast and rainy mist snow weather condition; Visbility reduces; More be prone to cause easily the rear-end collision of vehicle, serious threat driver and the life security of taking, the generation that therefore how to reduce the rear-end collision of vehicle is the target that automotive field is pursued always.
Automobile anti-rear end collision technology in the present existing technology flicker of the taillight through preceding vehicle often reminds driver's idea of back to keep the distance; But it is not high at visbility; And the in a rush throttle of Getting Started is under the situation of brake; The effect of this anti-equipment that knocks into the back can't be brought into play, and therefore is badly in need of a cover actv. automotive safety prior-warning device in this case.
A kind of method and apparatus is disclosed in patent CN200580021645.2; Start emergency braking in the time of can being about to take place inevitably collision with another automobile at the automobile of oneself by means of them and reduce impact strength in other words, wherein slow down and carry out as far as possible rapidly and with big as far as possible degree with crash-avoidance.
In patent CN200680008978.6, be provided for carrying out the spacing of a plurality of targets and a kind of method and a kind of device that relative velocity is measured by a kind of fmcw radar; Wherein be identified as real target or false target, and carry out this identification with extreme high reliability at short time internal object.
In patent CN200610086504, provide a kind of and can remove the noise that is comprised in the differential value of spacing information, calculate the volume relative velocity computer device and the vehicle distance control apparatus that meet actual relative velocity accurately rapidly.It has: the spacing detecting unit; The relative velocity calculating unit; And filter unit, also have switch unit.Output valve according to switch unit is judged relative velocity.
Summary of the invention
There are the problems referred to above in the utility model to existing technology; A kind of intelligent deceleration alarm set has been proposed; This a kind of intelligent deceleration alarm set can actv. reduces the generation of potential safety hazard, utilizes voice to carry out the alarm prompting, and auxiliary direct drivers is to brake, the operation of stopping; Improve drive safety greatly, had more practicality.
The utility model is realized through following technical proposal: a kind of intelligent deceleration alarm set; Comprise power supply, be used to detect front vehicles and vehicle detection of information unit, be used for the detection signal of carrying the processing and detecting unit and export control signal car load ECU, be used to handle the signal that car load ECU carries and send the language memory cell of signal and be used to point out the loud speaker of alarm; It is characterized in that; Described detecting unit is connected with car load ECU; Described car load ECU is connecting the language memory cell, is being connected relay circuit between described language memory cell and the loud speaker, and described relay circuit also is connected with car load ECU.
When vehicle '; The information of detection front vehicles and vehicle also sends to car load ECU to detected information; Above-mentioned information is carried out after the analyzing and processing in car load ECU and is sent control signal and give language memory cell and relay circuit; If judging after the analyzing and processing has then relay circuit work of potential safety hazard, the language memory cell transmits signal to loud speaker, carries out voice suggestion; If judge then car load ECU output control signal of no potential safety hazard after the analyzing and processing.
In above-mentioned intelligence deceleration alarm set; Described detecting unit comprises the acceleration pick-up that is used to detect the vehicle acceleration/accel, the radar that is used to calculate the relative velocity computer device of this car and front vehicles relative velocity and is used to detect vehicle and front vehicles distance, and described acceleration pick-up, relative velocity computer device and radar are connected with car load ECU respectively.Car load ECU receives acceleration signal, the detection of relative velocity computer device and the vehicle that calculates and relative velocity signal and the vehicle of detections of radar and the range signal of front vehicles of front vehicles that acceleration pick-up detects, and above-mentioned signal carries out after the analyzing and processing in car load ECU and exports control signal.
In above-mentioned intelligence deceleration alarm set; Described language memory cell comprises D/A converter, amplifying circuit and language chip; The input end of described D/A converter is connected with car load ECU; The mouth of described D/A converter is connected with the input end of amplifying circuit, and the mouth of described amplifying circuit is connected with the input end of language chip.After car load ECU carries out analyzing and processing to detection signal, judge potential safety hazard is arranged; This moment car load ECU output signal; Signal flows to amplifying circuit after in D/A converter, changing again; Signal carries out flowing to language chip again behind the power gain in the amplifying circuit again, and final speech signal is exported by language chip.
In above-mentioned intelligence deceleration alarm set; Described relay circuit comprises a relay; Described car load ECU is connected with the coil of relay, and an end of the normal open switch of described relay is connected with the mouth of above-mentioned language chip, and the other end is connected with loud speaker.After car load ECU carries out analyzing and processing to detection signal, judging has potential safety hazard, this moment car load ECU output signal, relay coil gets electric, relay normally open contact adhesive, so speech signal flows to loud speaker through language chip, carries out voice suggestion.
In above-mentioned intelligence deceleration alarm set, described acceleration pick-up and radar are arranged on the front bumper.Radar the distance that this car and front vehicles are convenient to detect in the position is set, cabling is convenient in the position that is provided with of acceleration pick-up.
In above-mentioned intelligence deceleration alarm set, described power supply is the vehicle battery power supply.Directly quote vehicle battery and be power supply, simple in structure.
Compared with prior art, this intelligent deceleration alarm set has the following advantages:
1, voice reminder is set, more hommization.
2, directly utilize vehicle battery, simplified structure, cost-cutting.
3, multiple sensors is set and carries out many signal detection, detection signal is more accurate, and device reliability is higher.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure, 1, power supply; 2, detecting unit; 2a, acceleration pick-up; 2b, relative velocity computer device; 2c, radar; 3, car load ECU; 4, language memory cell; 4a, D/A converter; 4b, amplifying circuit; 4c, language chip; 5, relay circuit; 6, loud speaker.
The specific embodiment
Below be the specific embodiment of the utility model, and combine accompanying drawing that the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1; A kind of intelligent deceleration alarm set; Comprise power supply 1, be used to detect front vehicles and vehicle detection of information unit 2, be used for the detection signal of carrying processing and detecting unit 2 and export control signal car load ECU 3, be used to handle the signal that car load ECU 3 carries and send the language memory cell 4 of signal and be used to point out the loud speaker 6 of alarm; Described detecting unit 2 is connected with car load ECU 3; Car load ECU 3 is connecting language memory cell 4, is being connected relay circuit 5 between language memory cell 4 and the loud speaker 6, and relay circuit 5 also is connected with car load ECU 3; Detecting unit 2 comprises the acceleration pick-up 2a that is used to detect the vehicle acceleration/accel, the radar 2c that is used to calculate the relative velocity computer device 2b of this car and front vehicles relative velocity and is used to detect vehicle and front vehicles distance; Acceleration pick-up 2a, relative velocity computer device 2b reach respectively with thunder 2c and are connected with car load ECU 3; Language memory cell 4 comprises D/A converter 4a, amplifying circuit 4b and language chip 4c; The input end of D/A converter 4a is connected with car load ECU, and the mouth of D/A converter 4a is connected with the input end of amplifying circuit 4b, and the mouth of described amplifying circuit 4b is connected with the input end of language chip 4c; Relay circuit 5 comprises a relay; Car load ECU 3 is connected with the coil of relay, and an end of the normal open switch of relay is connected with the mouth of language chip 4c, and the other end is connected with loud speaker 6; Acceleration pick-up 2a and radar 2c are arranged on the front bumper, and power supply 1 is the vehicle battery power supply.
When Ben Che and front vehicles distance near the time; Car load ECU 3 receives the relative distance signal that detecting unit 2 transports this car of acceleration pick-up 2a detection acceleration signal, relative velocity computer device 2b detection front and back vehicle relative velocity signal and radar 2c detection front and back vehicle in the detected detecting unit 2; Signal carries out analyzing and processing in car load ECU 3; When if signal judges that in car load ECU 3 analyzing and processing this car and leading vehicle distance have potential safety hazard to slow down; Car load ECU 3 sends control signal and gives language memory cell 4 and relay circuit 5; Signal is handled through amplifying circuit 4b through D/A converter 4a earlier in language memory cell 4 again signal is amplified then through speech chip 4c output, and it is electric that the signal that car load ECU 3 flows to relay circuit 5 gets relay coil, makes the relay normally open contact adhesive; In loud speaker 6, loud speaker 6 sends the voice suggestion of " please slow down " to language chip 4c with signal conveys; Do not have under the situation of potential safety hazard if the signal that detects is judged after the Treatment Analysis in car load ECU 3, car load ECU 3 does not send signal and gives voice memory unit 4 and relay circuit 5, and this moment, chaufeur need not to slow down; Vehicle does not have potential safety hazard; Sensor in the detecting unit 2 is real-time detection, need not manually opened, when automobile starting; The vehicle electric switch is opened, then this install electric startup.
This device with the circuit of power supply 1 wiring on a manual switch can be set; This hand switch button can be arranged on reveal in vehicle console or the main operator's compartment; If chaufeur can be opened shift knob and open in the time of need opening this device; If but off switch button need not open this device the time designs like this and has improved the practicality of installing.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used power supply 1, detecting unit 2, acceleration pick-up 2a, relative velocity computer device 2b, radar 2c, car load ECU3, language memory cell 4, D/A converter 4a, amplifying circuit 4b, language chip 4c, relay circuit 5, loud speaker 6 morely.Deng term, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.