CN102642528B - Electromagnetic rear-end collision preventing system - Google Patents
Electromagnetic rear-end collision preventing system Download PDFInfo
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- CN102642528B CN102642528B CN201110460801.2A CN201110460801A CN102642528B CN 102642528 B CN102642528 B CN 102642528B CN 201110460801 A CN201110460801 A CN 201110460801A CN 102642528 B CN102642528 B CN 102642528B
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Abstract
The invention discloses an electromagnetic rear-end collision preventing system, and aims at providing the electromagnetic rear-end collision preventing system capable of reducing the speed of a back vehicle when two vehicles approach. The electromagnetic rear-end collision preventing system comprises an induction coil, a fixed coil, a solenoid and a magnet; the magnet is mounted at the tail end of the vehicle; the induction coil is mounted at the front end of the vehicle; the solenoid is fixedly arranged on a hub of a front wheel of an automobile; the centerline of the solenoid is vertical to a driving shaft of the front wheel; the solenoid is electrically connected with the induction coil through a conducting wire; and the fixed coil is mounted on a vehicle body. When the two vehicles which are both provided with the electromagnetic rear-end collision preventing systems approach, the induction coil mounted at the head of the back vehicle cuts a magnetic field generated by the magnet at the tail part of the front vehicle; a current is generated in the induction coil; the solenoid is electrified to generate a magnetic field; the fixed coil cuts a magnetic line of force generated by the solenoid to generate resistance to the solenoid, namely, the rolling resistance of wheels is increased; the speed of the vehicle is slowed continuously; the vehicle is finally stopped; and the occurrence of a rear-end collision accident is stopped. The electromagnetic rear-end collision preventing system is applicable to all the automobiles.
Description
Technical field
The present invention relates to a kind of automotive safety equipment, especially relate to a kind of anti-system that knocks into the back of electromagnetic type that prevents rear-end impact accident.
Background technology
The widespread use of express highway and the development of automotive technology improve constantly power actuated vehicle moving velocity, also some potential safety hazards have been brought: car collision, rear-end collision occur again and again, especially in emergency brake, wet-skid road surface and boisterous situation simultaneously.Rear-end collision will cause vehicle to destroy, and when serious, can cause casualties.
It is the patent documentation of CN2543775Y that State Intellectual Property Office of the People's Republic of China discloses Granted publication number on 04 09th, 2003, title is Anti-tail collision for automobiles, it includes dial plate and gearshift display device, the pointer of dial plate is consistent with throttle stroke, gearshift display device shows car gear used in the process of moving, can be the driving condition feedback of own car in the sight line of car chaufeur below by throttle dial plate and gearshift display device, make the chaufeur of rear car can accurately understand front truck driving situation, in case knock into the back.This scheme still needs chaufeur constantly to note relevant information and vehicle is carried out to appropriate control preventing from knocking into the back, if system for distraction of driver or have burst accident to occur still there is the possibility knocking into the back.
Summary of the invention
The present invention solves the existing chaufeur that needs of prior art constantly to pay close attention to, and still has larger potential safety hazard, can not initiatively prevent the technical matters that knocks into the back, provides a kind of and just can initiatively prevent that without controlling the electromagnetic type of rear-end collision from preventing the system that knocks into the back.
The present invention is directed to above-mentioned technical matters is mainly solved by following technical proposals: the anti-system that knocks into the back of a kind of electromagnetic type, be used for preventing rear-end collision accident, it comprises induction coil, fixed coil, screw actuator and magnet, described magnet is arranged on vehicle tail end, described induction coil is arranged on vehicle front, the magnetic line of force that described induction coil and magnet produce intersects, described screw actuator is fixed on the wheel hub of vehicle front, described solenoidal line of centers is vertical with the axle drive shaft of front-wheel, described screw actuator is electrically connected to described induction coil by wire, described fixed coil is arranged on vehicle body, the magnetic line of force that when screw actuator is switched on and follows vehicle wheel rotation, fixed coil cutting screw actuator produces.When two vehicles that the anti-system that knocks into the back of electromagnetic type is all installed near time, be arranged on the magnetic field of the induction coil cutting front truck afterbody magnet generation of rear car head, generation current in induction coil, screw actuator energising produces magnetic field, if now rear car wheel is at rolling condition, the magnetic line of force that fixed coil cutting screw actuator produces, magnetic flow through fixed coil changes, according to Lenz law, fixed coil will produce resistance to screw actuator, the rolling resistance that is wheel increases, the mutual distance of two cars is nearer, the electric current of the generation in induction coil is larger, the magnetic-field intensity of solenoidal generation is larger, the rolling resistance of wheel is also larger, the speed of a motor vehicle constantly slows down, final vehicle stop, stop the generation of rear-end collision.Brake, lower category, reduce throttle also to after slowing down the more reaction time of chaufeur or the operation such as turned to control speed and the direction of vehicle, having avoided colliding with front truck.
As preferably, in described screw actuator, be inserted with iron core.Iron core can greatly strengthen the magnetic field that screw actuator produces, and improves deceleration resistance.
As preferably, the anti-system that knocks into the back of electromagnetic type also comprises an alarm lamp being arranged in operator's compartment, and described alarm lamp is in parallel with described screw actuator.After the magnetic field generation current of induction coil cutting front truck, alarm lamp lights, and reminds chaufeur to note controlling spacing.
As preferably, the anti-system that knocks into the back of electromagnetic type also comprises the sound prompt device being arranged in operator's compartment, and described sound prompt device is in parallel with described screw actuator.After the magnetic field generation current of induction coil cutting front truck, auditory tone cues system plays prompt tone, reminds chaufeur to note controlling spacing.
As preferably, connect on the wire of described screw actuator and described induction coil and be provided with a hand switch.When vehicle remains static or other do not need the lower time of situation of the anti-system works that knocks into the back of electromagnetic type, can close native system by hand switch.
As preferably, connect that the wire of described screw actuator and described induction coil is other is provided with current inductor, described current inductor is connected with vehicle electronic control unit.After induction coil generation current, current inductor is by delivered current size information to vehicle electronic control unit, and vehicle electronic control unit can be according to the big or small regulation speed of electric current.Vehicle electronic control unit is mainly that brake system is braked and carry out regulation speed by controlling throttle opening change throttle size by controlling.
As preferably, described magnet is electromagnet, and the master cock of described electromagnet is arranged in operator's compartment.The magnetic-field intensity that electromagnet produces is larger, and effect is better, in N/R situation, can electromagnet be quit work by closing control switch, saves the energy.
As preferably, described wheel hub is provided with the annulus of two mutually insulateds that vary in size, and the line of centers of described annulus overlaps with wheel center line, and described wire is connected with described annulus by brush, and described annulus is connected with described screw actuator.In the time of can guaranteeing wheel High Rotation Speed by annulus, screw actuator still has good being electrically connected to fixed coil.
As preferably, the anti-system that knocks into the back of electromagnetic type also comprises radar and automatic switch, and described radar is arranged on vehicle head and makes detection side to being dead ahead, and it is in parallel with hand switch that described automatic switch is connected on wire, and described automatic switch is subject to radar control.When detections of radar has vehicle to the place ahead, control automatic switch closed, the anti-system of knocking into the back of electromagnetic type is started working, and prevents that chaufeur from forgetting closed hand switch and causing native system not work.
The substantial effect that the present invention brings is, can two cars near time reduce after vehicle speed, improve safety, increase the reaction time of chaufeur, prevent that rear-end collision from occurring.
Accompanying drawing explanation
Fig. 1 is a kind of circuit diagram of the present invention;
In figure: 1, induction coil, 2, screw actuator, 3, hand switch, 4, automatic switch, 5, radar, 6, alarm lamp, 7, sound prompt device.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the anti-system that knocks into the back of a kind of electromagnetic type of the present embodiment, comprise induction coil 1, fixed coil, screw actuator 2 and magnet, magnet is arranged on vehicle tail end, induction coil is arranged on vehicle front, the magnetic line of force that induction coil and magnet produce intersects, screw actuator is fixed on the wheel hub of vehicle front, solenoidal line of centers is vertical with the axle drive shaft of front-wheel, as shown in Figure 1, screw actuator is electrically connected to induction coil by wire, fixed coil is arranged on vehicle body, the magnetic line of force that when screw actuator is switched on and follows vehicle wheel rotation, fixed coil cutting screw actuator produces.Fixed coil radial loop, around vehicle front, is inserted with iron core in screw actuator, iron core is also fixedly connected with wheel hub with screw actuator close contact simultaneously.A screw actuator is all installed on two front-wheels separately and is surrounded with fixed coil, two screw actuators are in parallel.
The present embodiment also comprises an alarm lamp 6 being arranged in operator's compartment, and alarm lamp is in parallel with screw actuator.
The present embodiment also comprises the sound prompt device 7 being arranged in operator's compartment, and sound prompt device is in parallel with screw actuator.
On the wire of connection screw actuator and induction coil, be provided with a hand switch 3.Hand switch is arranged in operator's compartment, and chaufeur comes into force the present embodiment by hand switch or be invalid.
The wire side that connects screw actuator and induction coil is provided with current inductor, and current inductor is connected with vehicle electronic control unit.
Magnet is electromagnet, and the master cock of electromagnet is arranged in operator's compartment.
Wheel hub is provided with the annulus of two mutually insulateds that vary in size, and the line of centers of annulus overlaps with wheel center line, and wire is connected with annulus by brush, and annulus is connected with screw actuator.
The present embodiment also comprises radar 5 and automatic switch 6, and radar is arranged on vehicle head and makes detection side to being dead ahead, and it is in parallel with hand switch that automatic switch is connected on wire, and automatic switch is subject to radar control.When detections of radar has vehicle to the place ahead, control automatic switch closed, the anti-system of knocking into the back of electromagnetic type is started working, and prevents that chaufeur from forgetting closed hand switch and causing native system not work.
When two cars near time, the magnetic line of force that the magnet of the induction coil cutting front truck of rear car produces, generation current in induction coil, screw actuator produces magnetic field, and because screw actuator is along with vehicle wheel rotation, be fixed coil cutting of magnetic line of force, according to Lenz law, generation current in fixed coil, and the magnetic field of this electric current is contrary with the magnetic direction that screw actuator produces, obstruction screw actuator rotates, thereby to making vehicle wheel rotation be subject to resistance, the speed of a motor vehicle reduces.Simultaneously the electric current in induction coil makes that alarm lamp lights, sound prompt device sends prompt tone, reminds chaufeur to note spacing.The other current inductor of wire senses in wire and occurs just sending the message of size of current to vehicle electronic control unit by electric current.Vehicle electronic control unit control brake system is moved and is controlled throttle opening and reduces to reduce the speed of a motor vehicle.
Distance between two cars is nearer or faster near speed, and the magnetic flux change speed in fixed coil is faster, and the electric current in fixed coil is just larger, and the magnetic field that screw actuator produces is stronger, and the resistance that wheel is subject to is also larger, deceleration better effects if.In vehicle electronic control unit, receive to such an extent that the electric current that represents in message is larger, brake degree is larger, and throttle opening is less.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as induction coil, screw actuator, magnet herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (9)
1. an electromagnetic type is prevented the system that knocks into the back, be used for preventing rear-end collision accident, it is characterized in that comprising induction coil (1), fixed coil, screw actuator (2) and magnet, described magnet is arranged on vehicle tail end, described induction coil (1) is arranged on vehicle front, described induction coil (1) intersects with the magnetic line of force that magnet produces, described screw actuator (2) is fixed on the wheel hub of vehicle front, the line of centers of described screw actuator (2) is vertical with the axle drive shaft of front-wheel, described screw actuator (2) is electrically connected to described induction coil (1) by wire, described fixed coil is arranged on vehicle body, the magnetic line of force that when screw actuator (2) is switched on and follows vehicle wheel rotation, fixed coil cutting screw actuator produces.
2. the anti-system that knocks into the back of electromagnetic type according to claim 1, is characterized in that, in described screw actuator, is inserted with iron core.
3. the anti-system that knocks into the back of electromagnetic type according to claim 1 and 2, is characterized in that, also comprise an alarm lamp (6) being arranged in operator's compartment, described alarm lamp (6) is in parallel with described screw actuator (2).
4. the anti-system that knocks into the back of electromagnetic type according to claim 1 and 2, is characterized in that, also comprise the sound prompt device (7) being arranged in operator's compartment, described sound prompt device (7) is in parallel with described screw actuator (2).
5. the anti-system that knocks into the back of electromagnetic type according to claim 3, is characterized in that, connects on the wire of described screw actuator (2) and described induction coil (1) and is provided with a hand switch (3).
6. the anti-system that knocks into the back of electromagnetic type according to claim 1, is characterized in that, connects described screw actuator (2) and is provided with current inductor with the wire side of described induction coil (1), and described current inductor is connected with vehicle electronic control unit.
7. the anti-system that knocks into the back of electromagnetic type according to claim 1, is characterized in that, described magnet is electromagnet, and the master cock of described electromagnet is arranged in operator's compartment.
8. electromagnetic type according to claim 1 is prevented the system that knocks into the back, it is characterized in that, described wheel hub is provided with the annulus of two mutually insulateds that vary in size, the line of centers of described annulus overlaps with wheel center line, described wire is connected with described annulus by brush, and described annulus is connected with described screw actuator (2).
9. electromagnetic type according to claim 5 is prevented the system that knocks into the back, it is characterized in that, also comprise radar (5) and automatic switch (4), described radar (5) is arranged on vehicle head and makes detection side to being dead ahead, described automatic switch (4) is connected on wire in parallel with hand switch, and described automatic switch (4) is controlled by radar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460801.2A CN102642528B (en) | 2011-12-31 | 2011-12-31 | Electromagnetic rear-end collision preventing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110460801.2A CN102642528B (en) | 2011-12-31 | 2011-12-31 | Electromagnetic rear-end collision preventing system |
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| CN102642528A CN102642528A (en) | 2012-08-22 |
| CN102642528B true CN102642528B (en) | 2014-08-06 |
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| CN201110460801.2A Active CN102642528B (en) | 2011-12-31 | 2011-12-31 | Electromagnetic rear-end collision preventing system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826079A (en) * | 2012-09-18 | 2012-12-19 | 问航 | Automobile intelligent electromagnetic braking rear-ending prevention system |
| CN103129576A (en) * | 2013-03-20 | 2013-06-05 | 广西玉林宏江能源科技有限公司 | Electromagnetic and permanent-magnet brake crash-proof system devices of train and motor train unit |
| JP6103057B2 (en) * | 2013-06-17 | 2017-03-29 | アイシン・エィ・ダブリュ株式会社 | Parking device |
| US10391872B2 (en) | 2017-07-07 | 2019-08-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Electromagnetic charge sharing and low force vehicle movement device and system |
| CN109407131B (en) * | 2017-08-17 | 2020-12-04 | 北京嘀嘀无限科技发展有限公司 | Method, device and equipment for determining direction of vehicle head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999028Y (en) * | 2005-06-07 | 2008-01-02 | 崔方明 | Automobile electromagnetic damping device |
| US20090174271A1 (en) * | 2008-01-08 | 2009-07-09 | Lily Lin | Combined generator with built-in eddy-current magnetic resistance |
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- 2011-12-31 CN CN201110460801.2A patent/CN102642528B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999028Y (en) * | 2005-06-07 | 2008-01-02 | 崔方明 | Automobile electromagnetic damping device |
| US20090174271A1 (en) * | 2008-01-08 | 2009-07-09 | Lily Lin | Combined generator with built-in eddy-current magnetic resistance |
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| CN102642528A (en) | 2012-08-22 |
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