CN106364317A - Car controlled interval cruise system and method thereof - Google Patents
Car controlled interval cruise system and method thereof Download PDFInfo
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- CN106364317A CN106364317A CN201610808769.5A CN201610808769A CN106364317A CN 106364317 A CN106364317 A CN 106364317A CN 201610808769 A CN201610808769 A CN 201610808769A CN 106364317 A CN106364317 A CN 106364317A
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- vehicle
- radar probe
- vehicles
- spacing
- travel
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/0008—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/18—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/0008—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
- B60K2031/0025—Detecting position of target vehicle, e.g. vehicle driving ahead from host vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/0008—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including means for detecting potential obstacles in vehicle path
- B60K2031/005—Selecting more than one target vehicle, e.g. using several preceding vehicles as target
Abstract
The invention provides a car controlled interval cruise system and method thereof, and belongs to the technical field of cars. The problem that the safety is low during controlled interval cruise in the prior art is solved. The car controlled interval cruise system comprises a control unit, a car distance detection module, a first radar probe, a second radar probe, a reminder and an engine control module, wherein the car distance detection module, the first radar probe, the second radar probe, the reminder and the engine control module are connected with the control unit. The car controlled interval cruise method comprises the steps that the safety car distance between a front car and a following car is set; reminding sounds are sent out when it is detected that cars enter the detection zone of the first radar probe or the second radar probe, the running car distance detected by a third radar probe and the running car distance detected by a fourth radar probe are compared at the same time, the shortest running car distance is extracted, the shortest running car distance and the safety car distance are compared, and a difference value between the shortest running car distance and the safety car distance is obtained; and according to the difference value, a car is controlled to conduct car speed control with corresponding accelerator control signals until the running car distance is equal to the safety car distance. According to the system and method, the running safety when the car runs according to a set car distance is improved.
Description
Technical field
The invention belongs to automobile technical field, it is related to a kind of automobile spacing cruise system and its method.
Background technology
With the increase of domestic automobile recoverable amount, urban transportation becomes increasingly congestion, queues up more and more general with car phenomenon
Time；In the case that needs guiding etc. is with car, driver must ceaselessly control acceleration, deceleration degree or gearshift to protect to vehicle simultaneously
Hold certain spacing, this brings trouble to driver.
For above-mentioned problem, it is auxiliary that existing Chinese patent literature discloses a kind of spacing of spacing supplementary controlled system
Help control method [application number: cn201310196325.7], it comprises the steps: first, by vehicle-mounted millimeter wave radar detection
Relative velocity and relative distance with front vehicles；Second, it is described that spacing pilot controller passes through the collection of radar can communication interface
Relative velocity and relative distance；3rd, driver sets the desired spacing with front vehicles by described spacing pilot controller；
4th, calculate the difference between described relative distance and described desired spacing, obtain interval error；5th, by described speed relatively
Degree and described interval error, as the input of fuzzy controller in described spacing pilot controller, are inquired about in described fuzzy controller
Vehicle expectation acceleration arteries and veins spectrogram, and draw the expectation acceleration of vehicle；6th, according to the expectation acceleration of vehicle, calculate
The expectation accelerator open degree of electromotor；7th, by controlling the expectation accelerator open degree of electric-control motor, and then control vehicle to travel speed
Degree, thus substitute driver to carry out spacing assist control.Although this invention enables the vehicle to the car automatically keeping driver to specify
Away from or speed travel, reduce driving fatigue, but according to specify spacing carry out with car when, if front vehicles deviate linear rows
Sail, then front vehicles will deviation detection scope, following vehicle can be caused to be accelerated so that front vehicles return in the visual field,
But in doing so, in congested in traffic city, following vehicle is run counter to driver's expectation and is accelerated, may with front
The vehicle of break-in collides, and affects traffic safety, and safety is not high.
Content of the invention
The purpose of the present invention be there are the problems referred to above for existing technology it is proposed that a kind of automobile spacing cruise system and
Its method, this automobile spacing cruise system and its method technical problem to be solved are: how to improve and realizing vehicle by setting
Determine traffic safety when spacing travels.
The purpose of the present invention can be realized by following technical proposal: a kind of automobile spacing cruise system, including for examining
Survey with front vehicles Travel vehicle away from spacing detection module it is characterised in that described automobile spacing cruise system also include control
Unit and the radar probe one for detecting vehicle left side situation being connected with described control unit, it is used for detecting vehicle right side
The radar probe two of situation, for reminding reminiscences of situation in front of driver vehicle and for adjusting sending out of Vehicle Speed
Motivation control module, described spacing detection module is connected with described control unit, and described control unit is according to radar probe one He
Entered by controlling reminiscences when the signal of radar probe two conveying judges that front vehicles go out to turn now to or both sides vehicle occurs jumping a queue
Row is reminded, and according to the shortest Travel vehicle with front vehicles of spacing detection module detection away from sending corresponding Throttle Opening Control letter
Number give engine control module, with control vehicle keep default safe distance between vehicles travelled.
The operation principle of this automobile spacing cruise system is: detects following vehicle and front vehicles by spacing detection module
Travel vehicle be served only for detecting whether vehicle front vehicle goes out to turn now to away from, the radar probe one in the system and radar probe two
Whether occur jumping a queue with both sides vehicle, the spacing of vehicle is not detected, simplify the function of radar probe, having vehicle
Enter the region of radar probe one or radar probe two, but spacing detection module be not detected by Travel vehicle away from change when judge two
Phenomenon of jumping a queue in side vehicle, and control unit then sends control signal to reminiscences, reminds driver just to make by reminiscences
Really judge and corresponding adjustment is made to spacing cruise, effectively prevent the behavior of jumping a queue of front vehicle by this operation, subtracting
The traffic safety when there is jumping a queue behavior for the vehicle is ensure that while worry in driving less on the way；Enter radar probe there being vehicle
One or the region of radar probe two and spacing detection module detects Travel vehicle away from when sending change, according to the current driving of detection
Spacing obtain the shortest Travel vehicle away from and with default safe distance between vehicles carry out calculate obtain difference, according to this difference obtain increase throttle
The throttle control signal of the throttle control signal of aperture or minimizing accelerator open degree is simultaneously sent to engine control module, electromotor control
Molding block constantly adjusts Vehicle Speed with throttle control signal, when travelling spacing equal to default safe distance between vehicles, starts
Machine control module controls vehicle to be travelled with default safe distance between vehicles according to current throttle control signal.The system is being realized
While vehicle is cruised with default safe distance between vehicles, also ensure that can send when front vehicles occur lane change and remind and make
Go out corresponding operating so that vehicle is maintained in the range of safe distance between vehicles, improve and realizing vehicle by the driving setting when spacing travels
Safety, it also avoid vehicle simultaneously and follows front vehicles break-in and run counter to the situation of the true intention of driver.
In above-mentioned automobile spacing cruise system, described spacing detection module includes at least two radar probe, respectively
For radar probe three and radar probe four, described control unit is for the data according to radar probe three and radar probe four conveying
Carry out comprehensive descision to determine front vehicles and the Travel vehicle of following vehicle away from whether equal to default safe distance between vehicles.By two
Radar probe can effectively improve judgement degree of accuracy, simultaneously to the Travel vehicle between front vehicles and following vehicle away from judging
The beeline that can be measured using both when front vehicles occur to turn to is sentenced as Travel vehicle away from default safe distance between vehicles
Disconnected, improve the safety that spacing cruise uses.
In above-mentioned automobile spacing cruise system, described automobile spacing cruise system also includes current for detecting vehicle
The vehicle speed sensor of travel speed, described vehicle speed sensor is connected with the input of control unit, and described control unit is used for root
Obtain corresponding one according to the vehicle current driving speed receiving with the Travel vehicle of calculating away from the difference between safe distance between vehicles in advance
If throttle control signal and be sent to engine control module.Prestore with regard to throttle control signal in control unit
Control parameter model, in control parameter model, is one-to-one relationship between throttle control signal and travel speed and difference,
Substitute in control parameter model after obtaining travel speed and difference and can obtain corresponding throttle control signal, make vehicle with
Accurately control signal is adjusted to be cruised with safe distance between vehicles, further increases the safety of spacing cruise.
In above-mentioned automobile spacing cruise system, described automobile spacing cruise system is also included for arranging spaces of vehicles
Button, described button is connected with the input of control unit, and described button is arranged on steering wheel or instrument board.Driver can
Vehicle is configured and is adjusted with the safe distance between vehicles of car by button, it is convenient to set.
In above-mentioned automobile spacing cruise system, described automobile spacing cruise system is also included for going out in both sides vehicle
The buzzer reported to the police during situation of now jumping a queue, described buzzer is connected with control unit.One buzzer of setting, can make car
Occur jumping a queue phenomenon when, automatically sound a buzzer, thus to wanting the vehicle jumped a queue to make prompting, making to make accordingly in this car
While safety measure, also remind other vehicles to take care, improve travel safety.
In above-mentioned automobile spacing cruise system, described automobile spacing cruise system also include for vehicle automatically with
Cancel the touch button of Vehicular turn with front vehicles, described touch button is connected with the input of control unit when turning to.If
Put touch button, can be when reminiscences sound, fast cancel Vehicular turn operates, and makes vehicle keep original intention to be travelled,
Improve driving comfort and the safety of vehicle.
A kind of automobile spacing cruise method is it is characterised in that described automobile spacing cruise method includes setting front vehicles
Safe distance between vehicles and following vehicle between, by radar probe three and radar probe four the real time measure following vehicle and front vehicles
Between Travel vehicle away from, determine whether that vehicle enters its search coverage by radar probe one and radar probe two, detection
To have vehicle enter into radar probe one or radar probe two search coverage when send prompting sound, simultaneously to radar probe three He
The Travel vehicle that radar probe four measures extracts the shortest Travel vehicle away from carrying out the shortest Travel vehicle away from safe distance between vehicles away from being compared
Relatively obtain difference between the two, according to this difference the control vehicle throttle control signal to increase or throttle to reduce
Control signal carries out speed control, until Travel vehicle is away from equal to safe distance between vehicles.
This automobile spacing cruise method operation principle is: before vehicle carries out spacing cruise, first safe distance between vehicles is carried out
Set, start after the completion of setting, in the process of moving, each radar probe is in running order, visit in radar probe one and radar
Two when all not detecting coherent signal, and the data that radar probe three and radar probe four are detected does mean value calculation, with
Ensure the accuracy of detection data, the average traveling spacing that both are detected is compared acquisition difference with safe distance between vehicles, and with
This difference controls vehicle to carry out speed control with increased throttle control signal or with the throttle control signal reducing, in radar
When probe one and radar probe two are all detected with vehicle and enter into this search coverage, send prompting sound, remind driver to make
Correctly judge to adjust spacing cruise mode, meanwhile, the shortest Travel vehicle that detected with radar probe three and radar probe four away from
It is compared with safe distance between vehicles, so that following vehicle and front vehicles are maintained in safe distance between vehicles, jump a queue avoiding front vehicle
While situation, also ensure that the safety of driving, decrease the comfortableness driven in way.
In above-mentioned automobile spacing cruise method, judge in the data being detected according to radar probe one and radar probe two
When front vehicles go out to turn now to, if not receiving the adjustment signal of steering wheel, following vehicle when front vehicles go out to turn now to, with
Travel direction with front vehicles is travelled, conversely, when receiving the adjustment signal of steering wheel, following vehicle keeps former row
Sail direction running, make vehicle carry out spacing with safe distance between vehicles by the signal of radar probe three and radar probe four conveying and patrol
Boat.During the cruise of automobile spacing, if when front vehicles go out to turn now to, if following vehicle does not make steering wheel adjusting
Whole, then vehicle turns to as well as front vehicles, then will run counter to original driving intention of vehicle, make driving by reminding
Member makes corresponding measure, you can ensures that vehicle keeps original and is intended to drive, can guarantee that traffic safety again.
In above-mentioned automobile spacing cruise method, it is current that described automobile spacing cruise method also includes real-time detection vehicle
Travel speed, the Travel vehicle according to travel speed and calculating is corresponding default away from the difference acquisition one between safe distance between vehicles
Throttle control signal.Throttle control signal is accurately preset it is ensured that vehicle can be with accurate throttle in spacing cruise
Control signal, to be rapidly achieved default safe distance between vehicles, improves safety.
In above-mentioned automobile spacing cruise method, described default throttle control signal is particularly as follows: arrange n Travel vehicle
Difference between safe distance between vehicles, n travel speed, n throttle control signal, by throttle control signal and difference and traveling
Speed sets up the parameter model of one-to-one relationship.This automobile spacing cruise method in running, will obtain current line
In the parameter model that the difference between safe distance between vehicles is updated to setting, then correspondence obtains the Travel vehicle sail speed, calculating
One default throttle control signal, carries out speed control according to this throttle control signal, can more accurately quickly reach pre-
If safe distance between vehicles, improve travel safety.
In above-mentioned automobile spacing cruise method, described safe distance between vehicles is set by button.
Compared with prior art, this automobile spacing cruise system and its method have the advantage that
1st, the present invention can be entered with the safe distance between vehicles setting in congestion urban transportation or under other Car followings automatically
Every trade is sailed, the less operation of frequent changes speeds, and the design of the present invention simultaneously avoids front vehicle to a certain extent and adds
The situation of plug occurs, and decreases the worry driven in way.
2nd, the present invention can examine according to radar probe when front vehicles changing Lane or steering or front vehicle are jumped a queue
The feedback of measurement information, can remind driver to make accurate judgment and adjust length between truck centers cruise mode, improve and realizing vehicle
By the travel safety setting when spacing travels.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is schematic diagram in the case of front vehicles straight trip for the present invention.
Fig. 3 is schematic diagram in the case of front vehicles turn to for the present invention.
Fig. 4 is schematic diagram in the case of jumping a queue occurs in left/right side for the present invention.
Fig. 5 is the control flow chart of the present invention.
In figure, 1, control unit；2nd, spacing detection module；21st, radar probe three；22nd, radar probe four；3rd, radar probe
One；4th, radar probe two；5th, engine control module；6th, reminiscences；7th, vehicle speed sensor；8th, button；9th, touch button；10、
Buzzer.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in figure 1, this automobile spacing cruise system include control unit 1 and be connected with control unit 1 for examining
Survey with front vehicles Travel vehicle away from spacing detection module 2, be used for detect the radar probe 1 of vehicle left side situation, be used for examining
Survey the radar probe 24 of vehicle right side situation, be used for reminding the reminiscences 6 of situation in front of driver vehicle and being used for adjusting vehicle
The engine control module 5 of travel speed, control unit 1 judges according to the signal of radar probe 1 and radar probe 24 conveying
Pass through when front vehicles go out to turn now to or both sides vehicle occurs jumping a queue to control reminiscences 6 to be reminded, and mould is detected according to spacing
The shortest Travel vehicle with front vehicles of block 2 detection away from sending corresponding throttle control signal to engine control module 5, with
Vehicle is controlled to keep default safe distance between vehicles to be travelled.Wherein, spacing detection module 2 includes at least two radar probe, point
Not Wei radar probe 3 21 and radar probe 4 22, control unit 1 be used for defeated according to radar probe 3 21 and radar probe 4 22
The data sent carries out comprehensive descision to determine front vehicles and the Travel vehicle of following vehicle away from whether equal to default safe distance between vehicles.
By two radar probe to the Travel vehicle between front vehicles and following vehicle away from judging, judgement can be effectively improved accurately
Degree, simultaneously front vehicles occur turn to when can using both measure beeline as Travel vehicle away from default safe distance between vehicles
Judged, improved the safety that spacing cruise uses.
Preferably, automobile spacing cruise system also includes the vehicle speed sensor 7 for detecting vehicle current driving speed,
Vehicle speed sensor 7 is connected with the input of control unit 1, control unit 1 be used for according to receive vehicle current driving speed with
Calculate Travel vehicle away between safe distance between vehicles difference obtain a corresponding default throttle control signal and be sent to send out
Motivation control module 5.Prestore the control parameter model with regard to throttle control signal in control unit 1, in control parameter
In model, it is one-to-one relationship between throttle control signal and travel speed and difference, after obtaining travel speed and difference
Substitute into control parameter model in can obtain corresponding throttle control signal, make vehicle with the most accurate control signal be adjusted to
Safe distance between vehicles is cruised, and further increases the safety of spacing cruise.
Preferably, automobile spacing cruise system also includes the button 8 for arranging spaces of vehicles, button 8 is single with control
The input of unit 1 connects, and button 8 is arranged on steering wheel or instrument board.Driver can by button 8 to vehicle with car peace
Full spacing is configured and adjusts, and it is convenient to set.
Preferably, automobile spacing cruise system is also included for being reported when situation occurs jumping a queue in both sides vehicle
Alert buzzer 10, buzzer 10 is connected with control unit 1.One buzzer 10 of setting, can make vehicle phenomenon of jumping a queue
When, automatically sound a buzzer, thus to wanting the vehicle jumped a queue to make prompting, making to make the same of corresponding safety measure in this car
When, also remind other vehicles to take care, improve travel safety.
Preferably, automobile spacing cruise system also includes taking for automatically following when front vehicles turn in vehicle
Disappear the touch button 9 of Vehicular turn, and touch button 9 is connected with the input of control unit 1.Setting touch button 9, can remind
When device 6 sounds, fast cancel Vehicular turn operates, and makes vehicle keep original intention to be travelled, the traveling that improve vehicle is relaxed
Adaptive and safety.
As shown in figure 5, this automobile spacing cruise method comprises the steps: to set between front vehicles and following vehicle
Safe distance between vehicles, this safe distance between vehicles is set by button 8；By radar probe 3 21 and radar probe 4 22 the real time measure with
With the Travel vehicle between vehicle and front vehicles away from, by radar probe 1 and radar probe 24 determine whether vehicle enter
Its search coverage, detect vehicle enter into radar probe 1 or radar probe 24 search coverage when send prompting
Sound, the Travel vehicle simultaneously radar probe 3 21 and radar probe 4 22 being measured extracts the shortest Travel vehicle away from will away from being compared
The shortest Travel vehicle is compared, away from safe distance between vehicles, the difference obtaining between the two, controls the oil to increase for the vehicle according to this difference
Gate control signal or with reduce throttle control signal carry out speed control, until Travel vehicle is away from equal to safe distance between vehicles.
Preferably, judge that front vehicles occur in the data detecting according to radar probe 1 and radar probe 24
During steering, if not receiving the adjustment signal of steering wheel, following vehicle, when front vehicles go out to turn now to, follows front vehicles
Travel direction is travelled, conversely, when receiving the adjustment signal of steering wheel, following vehicle keeps former travel direction to travel,
Vehicle is made to carry out spacing cruise with safe distance between vehicles by the signal of radar probe 3 21 and radar probe 4 22 conveying.In automobile
During spacing cruise, if when front vehicles go out to turn now to, if following vehicle does not make steering wheel adjustment, then vehicle
Turn to as well as front vehicles, then original driving intention of vehicle will be run counter to, so that driver is made accordingly by reminding
Measure, you can ensure that vehicle keeps original and is intended to drive, can guarantee that traffic safety again.
Preferably, automobile spacing cruise method also includes real-time detection vehicle current driving speed, according to traveling
The Travel vehicle of speed and calculating obtains a corresponding default throttle control signal away from the difference between safe distance between vehicles.To oil
Gate control signal is accurately preset it is ensured that vehicle can be rapidly achieved with accurate throttle control signal in spacing cruise
Default safe distance between vehicles, improves safety.
Preferably, default throttle control signal is particularly as follows: n Travel vehicle of setting is between safe distance between vehicles
Difference, n travel speed, n throttle control signal, throttle control signal is set up to correspond with difference and travel speed and closes
The parameter model of system.This automobile spacing cruise method in running, by obtain current driving speed, calculate Travel vehicle
In the parameter model that the difference between safe distance between vehicles is updated to setting, then correspondence obtains a default Throttle Opening Control letter
Number, speed control is carried out according to this throttle control signal, more accurately can quickly reach default safe distance between vehicles, improve driving
Safety.
As shown in Figure 1,5, the operation principle of this automobile spacing cruise system and its method is: carries out spacing cruise in vehicle
Before, first pass through button 8 and safe distance between vehicles set, after the completion of setting start vehicle, vehicle in the process of moving, each radar
Probe is in running order.As shown in Fig. 2 in the case of front vehicles straight trip, radar probe 3 21 and radar probe 4 22 are real
When monitoring following vehicle and front vehicles Travel vehicle away from and be conveyed to control unit 1, control unit 1 is to the radar probe obtaining
3 21 and radar probe 4 22 Travel vehicle away from carry out calculate obtain both average traveling spacings, according to this average traveling spacing
It is compared with the safe distance between vehicles setting, and then obtains difference between the two, a corresponding throttle is exported according to this difference
Control signal, to engine control module 5, adjusts the travel speed of vehicle so that protecting between vehicle by engine control module 5
Hold safe distance between vehicles to be travelled it is preferred that in advance in control unit one parameter model of 1 memory storage, this parameter model includes n
Difference between safe distance between vehicles for the Travel vehicle, n travel speed and n throttle control signal, wherein, throttle control signal with
Difference and travel speed are one-to-one relationship；Control unit 1 receives the current driving speed of vehicle speed sensor 7 conveying, and will
Obtain current driving speed, calculate Travel vehicle in the parameter model that the difference between safe distance between vehicles is updated to setting,
A corresponding default throttle control signal can be obtained and be conveyed to engine control module 5, by engine control module 5
Adjust the travel speed of vehicle with default throttle control signal, so that vehicle more accurately carries out determining with safe distance between vehicles more quickly
Away from cruise；As shown in figure 3, in the case that front vehicles turn to, vehicle appears in radar probe 1 or radar probe
24 detect in investigative range, then the signal detecting is conveyed to control unit 1 by radar probe 1 and radar probe 24,
Control unit 1 sends sound by reminiscences 6 after the signal receiving radar probe 1 and radar probe 24 conveying, reminds
Driver makes and correspondingly adjusting, now, if vehicle is not intended to follow front vehicles and is turned to, by touch button 9
Cancel this steering, so that vehicle keeps original route to be travelled, meanwhile, radar probe 3 21 and radar probe 4 22 will in real time
Away from being conveyed to control unit 1, control unit 1 is analyzed obtaining the shortest Travel vehicle away from the safety with setting the Travel vehicle collecting
Spacing is compared, and further according to current driving speed, obtains a corresponding throttle control signal, so that vehicle keeps accident-free vehicle
Away from being travelled.As shown in figure 4, when situation is jumped a queue in vehicle both sides, radar probe 1 and radar probe 24 can be at once
The signal jumped a queue with regard to both sides vehicle is detected and be sent to control unit 1, control unit 1 controls reminiscences 6 to send sound, carries
Awake driver makes accurate judgment and adjusts spacing cruise mode, and buzzer 10 is sounded a buzzer simultaneously, reminds vehicle note of jumping a queue
Meaning traffic safety is it is ensured that the safety traffic of vehicle.Vehicle is being realized with default safe distance between vehicles by the system and its method
While cruise, also ensure that can send when front vehicles occur lane change and remind and make corresponding operating so that vehicle is protected
Hold in the range of safe distance between vehicles, improve and realizing vehicle by the traffic safety setting when spacing travels, it also avoid car simultaneously
The situation followed front vehicles break-in and run counter to the true intention of driver occurs.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of automobile spacing cruise system, including for detection with front vehicles Travel vehicle away from spacing detection module (2), its
Be characterised by, described automobile spacing cruise system also include control unit (1) and with being used for that described control unit (1) is connected
Detect the radar probe one (3) of vehicle left side situation, be used for detecting the radar probe two (4) of vehicle right side situation, being used for reminding
The reminiscences (6) of situation and the engine control module (5) for adjusting Vehicle Speed, described car in front of driver vehicle
It is connected with described control unit (1) away from detection module (2), described control unit (1) is according to radar probe one (3) and radar probe
Pass through when two (4) signals conveying judge that front vehicles go out to turn now to or both sides vehicle occurs jumping a queue to control reminiscences (6) to carry out
Remind, and the shortest Travel vehicle with front vehicles being detected according to spacing detection module (2) is away from sending corresponding Throttle Opening Control
Signal to engine control module (5), to control vehicle to keep default safe distance between vehicles to be travelled.
2. automobile spacing cruise system according to claim 1 is it is characterised in that described spacing detection module (2) includes
At least two radar probe, respectively radar probe three (21) and radar probe four (22), described control unit (1) is used for basis
The data that radar probe three (21) and radar probe four (22) convey carries out comprehensive descision to determine front vehicles and following vehicle
Travel vehicle be equal to default safe distance between vehicles away from whether.
3. automobile spacing cruise system according to claim 1 and 2 is it is characterised in that described automobile spacing cruise system
Also include the vehicle speed sensor (7) for detecting vehicle current driving speed, described vehicle speed sensor (7) and control unit (1)
Input connect, described control unit (1) be used for according to receive vehicle current driving speed with calculate Travel vehicle away from
Difference between safe distance between vehicles obtains a corresponding default throttle control signal and is sent to engine control module (5).
4. automobile spacing cruise system according to claim 1 and 2 is it is characterised in that described automobile spacing cruise system
Also include the button (8) for arranging spaces of vehicles, described button (8) is connected with the input of control unit (1), described button
(8) it is arranged on steering wheel or instrument board.
5. automobile spacing cruise system according to claim 3 is it is characterised in that described automobile spacing cruise system also wraps
Include the buzzer (10) for being reported to the police, described buzzer (10) and control unit when situation occurs jumping a queue in both sides vehicle
(1) connect.
6. automobile spacing cruise system according to claim 3 is it is characterised in that described automobile spacing cruise system also wraps
Include for vehicle automatically follow front vehicles turn to when cancel Vehicular turn touch button (9), described touch button (9) with
The input of control unit (1) connects.
7. a kind of automobile spacing cruise method it is characterised in that described automobile spacing cruise method include set front vehicles with
Safe distance between vehicles between following vehicle, by radar probe three (21) and radar probe four (22) the real time measure following vehicle with front
Travel vehicle between square vehicle away from, by radar probe one (3) and radar probe two (4) determine whether vehicle enter its detection
Region, detect vehicle enter into radar probe one (3) or radar probe two (4) search coverage when send prompting sound,
The Travel vehicle simultaneously radar probe three (21) and radar probe four (22) being measured away from be compared extract the shortest Travel vehicle away from, will
The shortest Travel vehicle is compared, away from safe distance between vehicles, the difference obtaining between the two, controls the oil to increase for the vehicle according to this difference
Gate control signal or with reduce throttle control signal carry out speed control, until Travel vehicle is away from equal to safe distance between vehicles.
8. automobile spacing cruise method according to claim 7 is it is characterised in that according to radar probe one (3) and thunder
When reaching the data that probe two (4) detects and judging that front vehicles go out to turn now to, if not receiving the adjustment signal of steering wheel, Following Car
When front vehicles go out to turn now to, the travel direction following front vehicles is travelled, conversely, receiving the tune of steering wheel
During entire signal, following vehicle keeps former travel direction to travel, and is conveyed by radar probe three (21) and radar probe four (22)
Signal carries out spacing cruise with safe distance between vehicles making vehicle.
9. the automobile spacing cruise method according to claim 7 or 8 is it is characterised in that described automobile spacing cruise method
Also include real-time detection vehicle current driving speed, difference between safe distance between vehicles for the Travel vehicle according to travel speed and calculating
Value obtains a corresponding default throttle control signal.
10. automobile spacing cruise method according to claim 9 is it is characterised in that described default throttle control signal
Particularly as follows: difference between safe distance between vehicles for the n Travel vehicle of setting, n travel speed, n throttle control signal, by throttle
Control signal sets up the parameter model of one-to-one relationship with difference and travel speed.
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Address after: 317000 east gate of Taizhou City, Zhejiang Province Applicant after: Zhejiang Geely Automobile Research Institute Co., Ltd. Applicant after: Zhejiang Geely Holding Group Co., Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant before: Zhejiang Geely Holding Group Co., Ltd. Applicant before: Zhejiang Geely Automobile Research Institute Co., Ltd. |
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