CN103010210B - A kind of method controlling Automobile active rear-ending-preventicontrol control system - Google Patents
A kind of method controlling Automobile active rear-ending-preventicontrol control system Download PDFInfo
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- CN103010210B CN103010210B CN201210323188.4A CN201210323188A CN103010210B CN 103010210 B CN103010210 B CN 103010210B CN 201210323188 A CN201210323188 A CN 201210323188A CN 103010210 B CN103010210 B CN 103010210B
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Abstract
The present invention relates to a kind of method controlling Automobile active rear-ending-preventicontrol control system, comprise anti-knock into the back control unit and the engine management system be attached thereto, radar system, steering wheel angle sensor, wheel speed sensors, yaw-rate sensor, safety strap detecting unit, safety strap pretension control unit and safety air bag control unit.The anti-control unit that knocks into the back knows the speed of a motor vehicle of front vehicle and front vehicles and the distance with this car by radar system, analysis and calculation is carried out in conjunction with this car speed of a motor vehicle, send corresponding instruction to relevant actuating unit, acceleration is carried out to this car and controls to avoid being knocked into the back by front vehicle.When cannot avoid when knocking into the back, select to collide less the carrying into execution a plan of infringement that cause, and pre-cooling associated safety actuating unit, thus reduce the infringement that rear-end impact causes to greatest extent.
Description
Technical field
The present invention relates to vehicle safety travel technical field, particularly relate to and a kind ofly automobile can be avoided as far as possible to be knocked into the back and reduce knock into the back the Automobile active rear-ending-preventicontrol control system of the infringement that may cause and control method to greatest extent.
Background technology
Along with development and the progress of the new and high technologies such as network technology, the radar exploration technique, mechanics of communication and electron controls technology, vehicle electronics intelligent level was obtaining fast speed development in recent years, especially in automobile active safety, new technology is constantly had to release, as: deviation alarm technique, track keep technology, Study in Driver Fatigue State Surveillance System, collision avoidance system, runflat control system etc.But the application of these active safety technologies at present mainly considers when faulty operation appears in chaufeur or vehicle occurs dangerous, take the braking of suitable dynamics and report to the police to guarantee the safety traffic of chaufeur.As Chinese patent literature 200810094275.0 discloses one " automobile collision preventing control method and automobile collision preventing warning device ", automobile collision preventing control method is: macrometer gathers the range information between automobile and other object, and is delivered to controller; Velometer gathers the relative velocity between automobile and other object, and is delivered to controller; Adjust the distance information and relative velocity of controller processes, and outputs control signals to alarming device, and alarming device carries out pointing out or reporting to the police.This method is just reported to the police when being tested with and may colliding, and makes strained handling to remind chaufeur.But collision occurs in a flash in fact, after waiting systems axiol-ogy to go out likely to collide, chaufeur is reacted again, may cannot there occurs by collision free.Therefore, the method taked at present is difficult to avoid being knocked into the back of automobile, can not reduce to greatest extent to collide the infringement caused.
Summary of the invention
It is limited that the present invention mainly solves the mode that original automobile anti-collision method takes, and is difficult to the technical matters avoiding automobile to be occurred by the collision of knocking into the back; There is provided a kind of Automobile active rear-ending-preventicontrol control system and control method, it can be carried out acceleration according to front vehicles situation and control when automobile likely knocks into the back, thus avoids to greatest extent rear-end impact occurs.
Another object of the present invention is to provide a kind of Automobile active rear-ending-preventicontrol control system and control method, and it can, under collision cannot avoid situation, be selected to collide less the carrying into execution a plan of infringement caused, to reduce to greatest extent to collide the infringement caused.
Another object of the present invention is to provide a kind of Automobile active rear-ending-preventicontrol control system and control method, and it can under collision cannot avoid situation, the corresponding safety and firing mechanism of pre-cooling, reduces the infringement that rear-end impact causes to greatest extent.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: Automobile active rear-ending-preventicontrol control system of the present invention, comprise the engine management system be installed on automobile, radar system, the anti-control unit that knocks into the back, steering wheel angle sensor, wheel speed sensors, yaw-rate sensor and safety air bag control unit, engine management system, radar system, steering wheel angle sensor, wheel speed sensors, yaw-rate sensor and safety air bag control unit are connected with the anti-control unit that knocks into the back respectively, described engine management system is connected with the efp on automobile again, described radar system comprises forward direction radar and backward radar.Forward direction radar and backward radar can detect distance and the relative velocity of front vehicles and front vehicle.Automobile in the process of moving, the speed of a motor vehicle of front vehicle and the distance with this car is known by radar system, and flow to the anti-control unit that knocks into the back, steering wheel angle sensor, the data that wheel speed sensors and yaw-rate sensor record also flow to the anti-control unit that knocks into the back, knock into the back control unit through comprehensive analysis and calculation by anti-, judge whether front vehicle can knock into the back this car, if can knock into the back, then send control signal according to the situation of front vehicles and Ben Che and control efp to engine management system, perform speeding scheme, to avoid the generation of rear-end impact.When judge to draw occur by accelerating also cannot to avoid knocking into the back time, then send signal to safety air bag control unit with pre-cooling safety air bag by the anti-control unit that knocks into the back, make every effort to reduce the injury of colliding and causing.
As preferably, described Automobile active rear-ending-preventicontrol control system comprises safety strap detecting unit and safety strap pretension control unit, and safety strap detecting unit and safety strap pretension control unit are connected with the described anti-control unit that knocks into the back respectively.The safety strap of which seat on automobile is not had to be in binding state by the inspection of safety strap detecting unit, and binding information is flowed to the anti-control unit that knocks into the back, when the anti-control unit that knocks into the back is judged to avoid rear-end impact to occur, signal can be sent to safety strap pretension control unit, strain the safety strap on this seat in advance, reduce the infringement caused when collision occurs.
As preferably, the balladeur train that described safety strap pretension control unit comprises the guide rail be installed on automobile, pretension motor and is located on guide rail, the rotating shaft of pretension motor is connected with screw mandrel, screw mandrel is connected with balladeur train, one end of safety strap on automotive seat is connected with a set collar, set collar is connected with described balladeur train.The anti-control unit that knocks into the back sends the rotation of signal control pretension motor, and under the drive of screw mandrel, balladeur train moves forward and backward on guide rail, when balladeur train moves backward, is pulled back by safety strap by set collar, realizes the operation of automatic tension safety strap.
As preferably, described car door latches control unit and vehicle window automatic control unit automatically, and automatically latch control unit and vehicle window automatic control unit of described car door is connected with the described anti-control unit that knocks into the back respectively.When the anti-control unit that knocks into the back judge to draw cannot collision free time, start car door automatically to latch control unit and vehicle window automatic control unit, to lock all car doors of this car and to shut all vehicle windows of this car, when reducing to collide, this occupant is by the probability outside knocking-on car, to reduce to collide the degree of injury caused.
The control method of Automobile active rear-ending-preventicontrol control system of the present invention, comprises the following steps:
The speed of a motor vehicle of this car front vehicle that the backward radar in the radar system described in a. described anti-control unit that knocks into the back receives records and and this car between distance, by analysis and calculate, judge whether front vehicle likely knocks into the back this car, if likely knocked into the back, enter next step, otherwise then still normally travel;
If b. front vehicle likely knocks into the back this car, then then considering can by accelerating to avoid generation of knocking into the back to this car; The speed of a motor vehicle of this front side vehicle that the forward direction radar in the radar system described in the anti-control unit that knocks into the back receives records and and this car between distance, in conjunction with this car speed of a motor vehicle, by analysis and calculate, judge, if this front side does not have the safety distance that can accelerate, then the anti-control unit that knocks into the back exports control signal to safety air bag control unit with pre-cooling safety air bag; Otherwise the anti-control unit that knocks into the back goes out the accekeration that can not knock into the back with front vehicles according to the distance computation of the speed of a motor vehicle of front vehicles, the speed of a motor vehicle of this car and two cars, then control signal is exported to engine management system, control signal is sent to efp by engine management system, accelerated with this this car of Acceleration Control by efp, both guaranteed that this car can not knock into the back front vehicles, and avoided again front vehicle to knock into the back this car;
C. the anti-control unit that knocks into the back continues through backward radar detection front vehicle, if knocking into the back of having avoided front vehicle likely to occur, then sends control signal and stops accelerating to engine management system, make this car get back to normal motoring condition; Otherwise repeat step b.
Make every effort to avoid to greatest extent rear-end impact accident to occur and reduce the infringement that rear-end impact causes when knocking into the back and cannot avoiding to greatest extent.
As preferably, described Automobile active rear-ending-preventicontrol control system comprises the safety strap detecting unit and safety strap pretension control unit that are connected with the anti-control unit that knocks into the back, when the anti-control unit that knocks into the back judges to draw by accelerating also to avoid front vehicle to knock into the back, the anti-control unit that knocks into the back knows by safety strap detecting unit the information that the safety strap of which seat has been bound, then control signal is exported to the safety strap pretension control unit be connected on this seat, by the safety strap on this seat of safety strap pretension control unit automatic tension.The infringement that rear-end impact causes is reduced further when knocking into the back and cannot avoiding.
As preferably, described Automobile active rear-ending-preventicontrol control system comprises the car door be connected with the anti-control unit that knocks into the back and automatically to latch control unit and vehicle window automatic control unit, when the anti-control unit that knocks into the back judges to draw by accelerating also to avoid front vehicle to knock into the back, the anti-control unit that knocks into the back exports control signal and automatically to latch control unit and vehicle window automatic control unit to car door, to lock all car doors of this car and to shut all vehicle windows of this car, when reducing to collide, this occupant is by the probability outside knocking-on car, to reduce to collide the degree of injury caused.
As preferably, in described step b, if the anti-control unit that knocks into the back judges that this front side does not have the safety distance that can accelerate, then the anti-control unit that knocks into the back calculates further, calculate front vehicle knock into the back this car time impact strength and by accelerating this car cause this car to knock into the back impact strength that front vehicles produces, and these two impact strengths are compared, select the traveling scheme that impact strength is little; If front vehicle knocks into the back, the impact strength of this car is little, then this car does not change motoring condition; If this car knocks into the back, the impact strength of front vehicles is little, then carry out acceleration to this car and control.Under rear-end impact cannot avoid situation, selected to collide less the carrying into execution a plan of infringement caused by the anti-control unit that knocks into the back, control this vehicle travelling state, to reduce to greatest extent to collide the infringement caused.
The invention has the beneficial effects as follows: the present invention can in the wings vehicle may knock into the back this car time, according to the travel situations of front vehicles and Ben Che, make this car select to perform speeding scheme, thus avoid front vehicle to knock into the back this car to greatest extent, improve anti-collision effect.Can, under rear-end impact cannot avoid situation, select to collide less the carrying into execution a plan of infringement caused again, pre-cooling associated safety actuating unit, to reduce to greatest extent to collide the infringement caused, has good social benefit simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of system connection structure block diagram of Automobile active rear-ending-preventicontrol control system of the present invention.
Fig. 2 is a kind of structural representation of safety strap pretension control unit in Automobile active rear-ending-preventicontrol control system of the present invention.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the Automobile active rear-ending-preventicontrol control system of the present embodiment, as shown in Figure 1, comprise the engine management system 1 be installed on automobile, radar system 2, the anti-control unit 3 that knocks into the back, steering wheel angle sensor 4, wheel speed sensors 5, yaw-rate sensor 6, safety strap detecting unit 10, safety strap pretension control unit 9, safety air bag control unit 7, car door latch control unit 11 and vehicle window automatic control unit 12 automatically.Engine management system 1, radar system 2, steering wheel angle sensor 4, wheel speed sensors 5, yaw-rate sensor 6, safety strap detecting unit 10, safety strap pretension control unit 9, safety air bag control unit 7, automatically latch control unit 11 and vehicle window automatic control unit 12 of car door is connected with the anti-control unit 3 that knocks into the back respectively, the anti-control unit 3 that knocks into the back is connected with the instrument display unit 13 of automobile again, engine management system 1 is connected with the efp 8 on automobile again, radar system 2 comprises forward direction radar and backward radar, distance and the relative velocity of front vehicles and front vehicle can be detected, all adopt the 77GHZ radar of Universal automobile, this radar can detect pedestrian within the scope of 0.5 ~ 160 meter and vehicle.As shown in Figure 2, in the present embodiment, the balladeur train 93 that safety strap pretension control unit 9 comprises the guide rail 91 be installed on automobile, pretension motor 92 and is slidably mounted on guide rail 91, the rotating shaft of pretension motor 92 is connected with screw mandrel 94, one end of screw mandrel 94 is connected with balladeur train 93, on automotive seat, the installation end of safety strap 95 is connected with a set collar 96, and set collar 96 is connected with balladeur train 93.
The control method of above-mentioned Automobile active rear-ending-preventicontrol control system, comprises the following steps:
A. the speed of a motor vehicle of this car front vehicle that records of the anti-backward radar knocked into the back in control unit 3 receiving radar system 2 and and this car between distance, by analysis and calculate, judge whether front vehicle likely knocks into the back this car, if likely knocked into the back, enter next step, otherwise then still normally travel.
If b. front vehicle likely knocks into the back this car, then then considering can by accelerating to avoid generation of knocking into the back to this car; The speed of a motor vehicle of this front side vehicle that the anti-forward direction radar knocked into the back in control unit 3 receiving radar system 2 records and and this car between distance, in conjunction with this car speed of a motor vehicle, by analysis and calculate, judge.If this front side does not have the safety distance that can accelerate, then the anti-control unit 3 that knocks into the back calculates further, calculate front vehicle knock into the back this car time impact strength and by accelerating this car cause this car to knock into the back impact strength that front vehicles produces, and these two impact strengths are compared, select the traveling scheme that impact strength is little: the impact strength of this car is little if front vehicle knocks into the back, then this car does not change motoring condition; If this car knocks into the back, the impact strength of front vehicles is little, then carry out acceleration to this car and control.The anti-control unit 3 that knocks into the back knows by safety strap detecting unit 10 information that the safety strap of which seat has been bound simultaneously, then control signal is exported to the safety strap pretension control unit 9 be connected on this seat, by the safety strap on this seat of safety strap pretension control unit 9 automatic tension, the anti-control unit 3 that knocks into the back exports control signal to safety air bag control unit 7 with pre-cooling safety air bag simultaneously, the anti-control unit 3 that knocks into the back exports control signal and automatically to latch control unit 11 and vehicle window automatic control unit 12 to car door, to lock all car doors of this car and to shut all vehicle windows of this car, when reducing to collide, this occupant is by the probability outside knocking-on car, to reduce to collide the degree of injury caused.If instead this front side has the safety distance that can accelerate, then the anti-control unit 3 that knocks into the back goes out the accekeration that can not knock into the back with front vehicles according to the distance computation of the speed of a motor vehicle of front vehicles, the speed of a motor vehicle of this car and two cars, then control signal is exported to engine management system 1, control signal is sent to efp 8 by engine management system 1, accelerated with this this car of Acceleration Control by efp 8, both guaranteed that this car can not knock into the back front vehicles, and avoided again front vehicle to knock into the back this car.
C. the anti-control unit 3 that knocks into the back continues through backward radar detection front vehicle, if knocking into the back of having avoided front vehicle likely to occur, then sends control signal and stops accelerating to engine management system 1, make this car get back to normal motoring condition; Otherwise repeat step b.
It is all that system completes execution automatically that operation in the present invention controls; used time is few, reaction is fast; front vehicle can be avoided to greatest extent to knock into the back this car; improve anti-collision effect; and can, under rear-end impact cannot avoid situation, select to collide less the carrying into execution a plan of infringement caused again, pre-cooling associated safety actuating unit simultaneously; to reduce to greatest extent to collide the infringement caused, the active protective capability of automobile is strengthened greatly.
Claims (4)
1. one kind controls the method for Automobile active rear-ending-preventicontrol control system, Automobile active rear-ending-preventicontrol control system comprises the engine management system (1) be installed on automobile, radar system (2), the anti-control unit (3) that knocks into the back, steering wheel angle sensor (4), wheel speed sensors (5), yaw-rate sensor (6) and safety air bag control unit (7), engine management system (1), radar system (2), steering wheel angle sensor (4), wheel speed sensors (5), yaw-rate sensor (6) and safety air bag control unit (7) are connected with the anti-control unit (3) that knocks into the back respectively, described engine management system (1) is connected with the efp (8) on automobile again, described radar system (2) comprises forward direction radar and backward radar, it is characterized in that the method controlling Automobile active rear-ending-preventicontrol control system comprises the following steps:
The speed of a motor vehicle of this car front vehicle that the backward radar in the radar system (2) described in a. described anti-control unit that knocks into the back (3) receives records and and this car between distance, by analysis and calculate, judge whether front vehicle likely knocks into the back this car, if likely knocked into the back, enter next step, otherwise then still normally travel;
If b. front vehicle likely knocks into the back this car, then then considering can by accelerating to avoid generation of knocking into the back to this car; The speed of a motor vehicle of this front side vehicle that the forward direction radar in the radar system (2) described in the anti-control unit (3) that knocks into the back receives records and and this car between distance, in conjunction with this car speed of a motor vehicle, by analysis and calculate, judge, if this front side does not have the safety distance that can accelerate, then the anti-control unit (3) that knocks into the back exports control signal to safety air bag control unit (7) with pre-cooling safety air bag; Otherwise the anti-control unit (3) that knocks into the back goes out the accekeration that can not knock into the back with front vehicles according to the distance computation of the speed of a motor vehicle of front vehicles, the speed of a motor vehicle of this car and two cars, then control signal is exported to engine management system (1), control signal is sent to efp (8) by engine management system (1), accelerated with this this car of Acceleration Control by efp (8), both guaranteed that this car can not knock into the back front vehicles, and avoided again front vehicle to knock into the back this car;
C. the anti-control unit (3) that knocks into the back continues through backward radar detection front vehicle, if that has avoided front vehicle likely to occur knocks into the back, then send control signal to stop accelerating to engine management system (1), make this car get back to normal motoring condition; Otherwise repeat step b.
2. the method for control Automobile active rear-ending-preventicontrol control system according to claim 1, it is characterized in that described Automobile active rear-ending-preventicontrol control system comprises the safety strap detecting unit (10) and safety strap pretension control unit (9) be connected with the anti-control unit (3) that knocks into the back, when the anti-control unit (3) that knocks into the back judges to draw by accelerating also to avoid front vehicle to knock into the back, the anti-control unit (3) that knocks into the back knows by safety strap detecting unit (10) information that the safety strap of which seat has been bound, then control signal is exported to the safety strap pretension control unit (9) be connected on this seat, by the safety strap on this seat of safety strap pretension control unit (9) automatic tension.
3. the method for control Automobile active rear-ending-preventicontrol control system according to claim 1 and 2, it is characterized in that described Automobile active rear-ending-preventicontrol control system comprises the car door be connected with the anti-control unit (3) that knocks into the back and automatically to latch control unit (11) and vehicle window automatic control unit (12), when the anti-control unit (3) that knocks into the back judges to draw by accelerating also to avoid front vehicle to knock into the back, the anti-control unit (3) that knocks into the back exports control signal and automatically to latch control unit (11) and vehicle window automatic control unit (12) to car door, to lock all car doors of this car and to shut all vehicle windows of this car, when reducing to collide, this occupant is by the probability outside knocking-on car, to reduce to collide the degree of injury caused.
4. the method for control Automobile active rear-ending-preventicontrol control system according to claim 1, it is characterized in that in described step b, if the anti-control unit (3) that knocks into the back judges that this front side does not have the safety distance that can accelerate, then the anti-control unit (3) that knocks into the back calculates further, calculate front vehicle knock into the back this car time impact strength and by accelerating this car cause this car to knock into the back impact strength that front vehicles produces, and these two impact strengths are compared, select the traveling scheme that impact strength is little; If front vehicle knocks into the back, the impact strength of this car is little, then this car does not change motoring condition; If this car knocks into the back, the impact strength of front vehicles is little, then carry out acceleration to this car and control.
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| CN201210323188.4A CN103010210B (en) | 2012-09-04 | 2012-09-04 | A kind of method controlling Automobile active rear-ending-preventicontrol control system |
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| CN201210323188.4A CN103010210B (en) | 2012-09-04 | 2012-09-04 | A kind of method controlling Automobile active rear-ending-preventicontrol control system |
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Effective date of registration: 20190409 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |