CN104709284B - A kind of Car Automatic Speed Limit control system and control method - Google Patents
A kind of Car Automatic Speed Limit control system and control method Download PDFInfo
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- CN104709284B CN104709284B CN201510095708.4A CN201510095708A CN104709284B CN 104709284 B CN104709284 B CN 104709284B CN 201510095708 A CN201510095708 A CN 201510095708A CN 104709284 B CN104709284 B CN 104709284B
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- 230000008901 benefit Effects 0.000 description 10
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- 239000010705 motor oil Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000005055 memory storage Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/14—Adaptive cruise control
- B60W30/143—Speed control
- B60W30/146—Speed limiting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/02—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to ambient conditions
- B60W40/06—Road conditions
- B60W40/076—Slope angle of the road
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
- B60W40/105—Speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of Car Automatic Speed Limit control system, including：Control unit, it includes controller, ABS brake gears and is arranged on automobile oil supply pipe to control the control valve of gasoline flow；Signal gathering unit, its velocity sensor for including being used to gather automobile driving speed, the speed limit acquisition device for gathering automobile current driving road segment speed limit and the travel direction of the current automobile of collection and the satellite positioning device of residing road conditions, wherein described controller judges whether current automobile exceeds the speed limit based on the signal received from velocity sensor and speed limit acquisition device, and determines whether the opening degree of control valve and ABS brake gears start according to the judgement signal and the information got from satellite positioning device.The present invention provides a kind of Car Automatic Speed Limit control system, it is with hommization, the effect that practicality is high, safety coefficient is high.The present invention also provides a kind of control method, have safely, save worry, intelligentized effect.
Description
Technical field
The present invention relates to a kind of limiter of speed used under automobile running condition.It is it is more particularly related to a kind of
Car Automatic Speed Limit control system and control method under automobile running condition.
Background technology
Existing speed limit product is used in running car situation, highway traffic control section is mainly useful for, to automobile
Travel speed have stringent speed limit in the case of, the travel speed of automobile is limited as auxiliary, to reach it not
Traffic violation, and the effect with higher security.
Specifically, usual speed limit product is mainly realized using two methods：First, by being installed on speed limit guideboard
Radio-frequency transmissions end, installs corresponding radio frequency reception end on automobile, to realize the acquisition of the speed limit to each section；Second, in vapour
Camera is installed on car or automobile data recorder is engaged with image processor to realize the acquisition of speed limit, passes through camera or row
The camera function of car recorder obtains the speed limit pictorial information on speed limit guideboard, and by image processor on picture
Speed-limiting messages are analyzed, handled, to obtain the digital signal to the speed limit in each section；Third, pass through the navigator on automobile
The electronic map of memory storage obtains the digital signal of the speed limit in each section.
But in these three modes, there are some problems, wherein first way, it is needed to each section speed limit
Board, automobile carry out secondary transformation respectively, its engineering is larger, and manpower and materials input is more, it is difficult to realizes；The second way, it is necessary to
Taken pictures immediately to each section speed limitation board by camera or automobile data recorder in vehicle traveling process, to obtain each speed limit
Speed limit value information on board, but its photo for taking is being often because automobile is keeping certain speed traveling, and make to shoot what is come
Photographic fog is unclear, is unfavorable for image processor and the speed limit value information on picture extraction picture, its stability cannot be guaranteed,
Obtain speed limit it is ineffective, often occur speed limiting system not as or maloperation；The third mode, it uses navigation
The electronic map of instrument memory storage obtains the digital signal of the speed limit in each section, it does not consider to extract using various ways
The digital signal of speed limit in navigator, and there is the behaviour for reducing driver by speed limiting system in long-duration driving
Make so that personnel are easy to reduce vigilant and cause the generation of security incident, while occur in vehicle traveling process uplink,
Or during downstream state, be not considered separately, easily when up gradient is larger, because speed limiting system is insufficient to engine oil mass,
Automobile be unable to normal upstream or fall back the occurrence of, caused by security incident；Or automobile be in descending grade it is larger when,
Only by speed limiting system to engine fuel-flow control, the problem of without considering automobile downlink inertia, and cause speed limiting system without
Method veritably carries out the effect of speed limit to the travel speed of automobile, and security incident occurs.
The content of the invention
It is excellent it is an object of the invention to solve at least the above and/or defect, and provide at least to will be described later
Point.
It is a still further object of the present invention to provide a kind of Car Automatic Speed Limit control system, it can be obtained by navigator
To section speed limit control valve opening degree is controlled, to control the amount of gasoline of automobile engine, to realize speed limit
Effect, and different section situations, such as uplink, downlink, straight trip situation can be analyzed at the same time, to reach different feelings
Condition, gives different control signals, has hommization, the effect that practicality is high, safety coefficient is high.
A further object of the invention be by the control method to Car Automatic Speed Limit control system, can be according to current
The speed limit requirement that section falls, safety, province's heart realize intelligence, automatic speed-limiting to the travel speed of automobile, without driver's hand
Dynamic control, simplifies driver's operation so that driver is not easy to fatigue and has more preferable Driving control.
In order to realize these purposes and further advantage according to the present invention, there is provided a kind of Car Automatic Speed Limit control system
System, including：
Control unit, it includes controller, ABS brake gears and is arranged on automobile oil supply pipe to control gasoline stream
The control valve of amount, the ABS brake gears, control valve are connected with the controller；
Signal gathering unit, it includes being used for velocity sensor, the collection automobile current driving for gathering automobile driving speed
The speed limit acquisition device and the travel direction of the current automobile of collection and the satellite positioning device of residing road conditions of section speed limit, and
The velocity sensor, speed limit acquisition device, satellite positioning device are connected to controller, wherein the controller is based on rapidly
Degree sensor and the signal that receives of speed limit acquisition device judge whether current automobile exceeds the speed limit, and according to the judgement signal and
The information got from satellite positioning device determines whether the opening degree of control valve and ABS brake gears start.
Preferably, wherein, the speed limit acquisition device include navigator and with the sequentially connected identifier of navigator
And amplifier, the amplifier, the output terminal of velocity sensor are connected to comparator, the output terminal of the comparator is connected to
Controller.
Preferably, wherein, the traffic information that the satellite positioning device obtains is present road situation information.
Preferably, wherein, the controller is also associated with compensation instrument, and the compensation instrument is connected with control valve.
The purpose of the present invention can also be further by a kind of using control of the Car Automatic Speed Limit control system to automobile speed limit
Method processed realizes that this method comprises the following steps：
Step 1: gathered respectively by the velocity sensor, speed limit acquisition device the current velocity amplitude of output automobile and
The speed limit of current road segment, and be converted as the first electric signal and the second electric signal；
Step 2: receiving the first electric signal and the second electric signal by the comparator, and the two is compared to obtain
One comparative result, and the comparative result is sent to controller；
Step 3: the controller, which is based on the comparative result, judges whether automobile drives over the speed limit on current road segment, if
It is to jump to step 4, otherwise return to step one；
Step 4: road condition information and the transmission extremely control that automobile is presently in are obtained by the satellite positioning device
Device；
Step 5: whether the controller there is the gradient to carry out present road based on the road condition information received
Judge, step 6 is jumped to if having, control signal is otherwise sent to control valve according to judgement result, to determine opening for control valve
It is right, and return to step one；
Step 6: automobile current driving directional information is obtained by the satellite positioning device and is sent to controller；
Step 7: whether the controller currently locates automobile based on the current transmits information of the automobile received
Judged in uplink state, and control signal is sent to control valve or/and ABS brake system according to judgement result, to determine
The opening degree of control valve and whether start ABS brake system, and return to step one.
Preferably, wherein, in the step 1, the identifier in the speed limit acquisition device is by sending out navigator
Current road segment speed limit numerical value is identified in the speed limit voice signal gone out or the electronic map being stored in navigator, and by its turn
Change corresponding electric signal into, then sent after being amplified by amplifier to electric signal to comparator.
Preferably, wherein, in the step 2, the comparator docks received first electric signal and the second telecommunications
Number it is compared, if the value of the first electric signal is more than the value of the second electric signal, to controller output 1, otherwise exports 0；
In the step 3, the controller receives the numerical value of comparator output, if numerical value is 1, then judges hypervelocity.
Preferably, wherein, in the step 5, road that the controller is presently in based on the automobile received
Whether situation information, there is the gradient to judge the present road residing for automobile, such as by the determination module being disposed thereon
Fruit judging result is with the gradient, then jumps to step 6, and otherwise the controller is standard to control valve using the second electric signal
Control signal is sent, the speed limit to automobile driving speed is realized to determine the opening degree of control valve.
Preferably, wherein, in the step 7, the controller is based on the current transport condition of the automobile received
Whether judged in uplink state, if being sent out again to control valve after then being compensated by the compensation instrument to secondary signal
Go out control signal, the speed limit to automobile driving speed, and return to step one are realized to determine the opening degree of control valve.
Preferably, wherein, in the step 4, the controller is based on the current transport condition of the automobile received
Whether judged in uplink state, if not then sending control signal to control valve using the second electric signal as standard, at the same time
Start ABS brake system, to determine the opening degree of control valve and realize the limit to automobile driving speed by ABS brake system
Speed, return to step one.
The present invention includes at least following beneficial effect：First, due to leading in the speed limit acquisition device that is set in the present invention
Navigate instrument, and ABS brake system, velocity sensor utilize the device of automobile itself, therefore relative to traditional speed-limiting device, it has
Having reduces the effect of cost.
Second, the section speed limit that is got in the present invention by navigator is controlled control valve opening degree, with
Control the amount of gasoline of automobile engine, to realize the effect of speed limit, and at the same time can to different section situations, as uplink, downlink,
Straight trip situation is analyzed, and to reach different situations, gives different control signals, has hommization, practicality height, peace
The high effect of overall coefficient.
Third, can be according to the speed limit requirement that current section falls to the travel speed of automobile in the present invention, safety, save heart
Intelligence, automatic speed-limiting are realized to the travel speed of automobile, controlled manually without driver, simplifies driver's operation, and
And provide two kinds of speed limit acquisition modes so that driver's selection is more and not easy to fatigue under voice prompt and with more preferable
Driving experience.
Fourth, once entering intelligent speed-limiting pattern in the present invention, the effect of the original foot-operated oil-control valve of automobile is only to have
To engine oil and not two kinds of alternatives of fuel feeding, and the number of oil mass can be directly controlled by speed limiting system,
Prevent beginner maloperation or by the oil-control valve of automobile as throttle come the security incident stepping on and trigger.
Fifth, the speed limiting system of the present invention, which can also receive, is manually entered speed limit as electric signal, to realize to control
The control of the opening degree of valve, achievees the purpose that at the uniform velocity to travel, and can simplify the operation of driver, and beginner is also fitted
With, can by speed control in a safer velocity amplitude.
Further advantage, target and the feature of the present invention embodies part by following explanation, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structure diagram of Car Automatic Speed Limit control system in one embodiment of the present of invention.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or its combination.
Fig. 1 shows a kind of way of realization of Car Automatic Speed Limit control system according to the present invention, including：
Control unit 1, it includes controller 2, ABS brake gears 3 and is arranged on automobile oil supply pipe to control vapour
The control valve 4 of oil stream amount, the ABS brake gears, control valve are connected with the controller；
Signal gathering unit 5, it includes being used for velocity sensor 6, the collection automobile current line for gathering automobile driving speed
Sail the speed limit acquisition device 7 and the travel direction of the current automobile of collection and the satellite positioning device of residing road conditions of section speed limit
8, and the velocity sensor, speed limit acquisition device, satellite positioning device are connected to controller, wherein the controller is based on
The signal that is received from velocity sensor and speed limit acquisition device judges whether current automobile exceeds the speed limit, and according to the judgement signal
And the information got from satellite positioning device determines whether the opening degree of control valve and ABS brake gears start.It is described
Control valve is used to limit the flow of gasoline pipeline in the case of overspeed of vehicle, so that being flowed into in-engine
Oil mass is controlled, and to realize the speed limit to automobile, the ABS brake gears are used in overspeed of vehicle and are in downstream state
When, by control valve come the control to automobile oil mass, but because the reason for automobile inertial, and cannot control within speed limit
When, start ABS brake gears to aid in have the function that car speed control within speed limit.It is real using this scheme
When the travel speed of automobile is detected, and carry out with the current road segment speed limit got realizing comparison, such as judge super
The fast then control valve opening degree by being arranged on gasoline pipeline, to be controlled to the fuel feeding size of engine, with realization pair
The speed limit of automobile driving speed, it is low with cost because of the most components carried using automobile of its internals in itself, and safety,
The good benefit of intelligence, stability, while when control valve works, the effect of the original foot-operated oil-control valve of automobile is only to have
To engine oil and not two kinds of alternatives of fuel feeding, and the number of oil mass can be directly by speed limiting system to control valve
Control signal realizes control, reduces maloperation, safety coefficient higher.Also, this mode is a kind of saying for preferred embodiments
It is bright, but be not limited thereto.
In another example, the speed limit acquisition device 7 include navigator 9 and with the sequentially connected identification of navigator
Device 10 and amplifier 11, the amplifier, the output terminal of velocity sensor are connected to comparator 12, the output of the comparator
End is connected to controller.The speed limit in each section is obtained using this scheme, relative to traditional camera shooting or
The mode at radio-frequency receiving-transmitting end is installed, there is the benefit that reliability height, cost are controlled, and the identifier can be used for knowing
The voice prompt signal to current driving road segment speed limit that other vehicle body carries that navigator sends or the electricity being stored in navigator
The speed limit in each section of sub- map internal labeling so that the acquisition diversification of forms of its speed limit, and it is more quick, beneficial to control
Device can send control instruction within the shortest time.Also, this mode is a kind of explanation of preferred embodiments, but not office
It is limited to this.
In another example, the traffic information that the satellite positioning device obtains is present road situation information.Using
Concrete condition where this scheme running section current to automobile is analyzed, beneficial to controller according to different road conditions energy
Different responses is flexibly made, there is flexibility height, the benefit of hommization.Also, this mode is a kind of preferable
The explanation of example, but be not limited thereto.
In another example, the controller is also associated with compensation instrument 13, and the compensation instrument is connected with control valve.Using
This scheme is in overspeed condition in automobile, but when it locates uplink state again, with the transformed electric signal of speed limit as control
Before signal processed is controlled the opening degree of control valve, first passes through compensation instrument and the electric signal is compensated, after compensation
Electric signal is controlled the opening degree of control valve as control signal so that automobile can when in the different size of gradient
In normal upstream in scope as defined in speed limit, without because being controlled the opening degree of control valve, so that vapour
Car in great slope uplink because be unable to normal upstream the reason for inertia or speed do not reach requirement but forced ascending to automobile
Influence caused by engine, has benefit that is intelligent, highly practical, prolonging the service life.Also, this mode is one
The explanation of kind preferred embodiments, but be not limited thereto.
Car Automatic Speed Limit control system in such scheme can limit automobile to realize by following control method
Speed, this method comprise the following steps：
Step 1: gathered respectively by the velocity sensor, speed limit acquisition device the current velocity amplitude of output automobile and
The speed limit of current road segment, and be converted as the first electric signal and the second electric signal；
Step 2: receiving the first electric signal and the second electric signal by the comparator, and the two is compared to obtain
One comparative result, and the comparative result is sent to controller；
Step 3: the controller, which is based on the comparative result, judges whether automobile drives over the speed limit on current road segment, if
It is to jump to step 4, otherwise return to step one；
Step 4: road condition information and the transmission extremely control that automobile is presently in are obtained by the satellite positioning device
Device；
Step 5: whether the controller there is the gradient to carry out present road based on the road condition information received
Judge, step 6 is jumped to if having, control signal is otherwise sent to control valve according to judgement result, to determine opening for control valve
It is right, and return to step one；
Step 6: automobile current driving directional information is obtained by the satellite positioning device and is sent to controller；
Step 7: whether the controller currently locates automobile based on the current transmits information of the automobile received
Judged in uplink state, and control signal is sent to control valve or/and ABS brake system according to judgement result, to determine
The opening degree of control valve and whether start ABS brake system, and return to step one.Automobile is in using this scheme and is not gone the same way
Different schemes is respectively adopted during condition come realize to automobile carry out speed limit, have it is adaptable, highly practical, hommization has
Sharp part.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another example, in the step 1, the identifier in the speed limit acquisition device passes through to navigator
Current road segment speed limit numerical value is identified in the speed limit voice signal sent or the electronic map being stored in navigator, and by its
Corresponding electric signal is converted into, then is sent after being amplified by amplifier to electric signal to comparator.Can using this scheme
Select two ways to obtain speed limit, there is the benefit that stability is strong, practicality is good, can band to different drivers
Carry out different driving experience, and when that can not obtain for one, there can be alternative scheme to use, and its navigator can receive
The speed limit that user is manually entered, and with the value of its input one can be controlled with the travel speed of automobile as speed limit electric signal
In relatively fixed and safe velocity amplitude.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another example, in the step 2, the comparator docks received first electric signal and the second electricity
Signal is compared, if the value of the first electric signal is more than the value of the second electric signal, to controller output 1, otherwise exports 0；
In the step 3, the controller receives the numerical value of comparator output, if numerical value is 1, then judges hypervelocity.Using this side
Case can quickly obtain running car whether current road segment exceeds the speed limit, while this comparator can also be carried out with comparison circuit etc.
Instead of to reach the effect of identical, there is highly practical benefit.Also, this mode is a kind of preferred embodiments
Illustrate, but be not limited thereto.
In another example, in the step 5, road that the controller is presently in based on the automobile received
Whether road situation information, there is the gradient to sentence the present road residing for automobile by the determination module 14 being disposed thereon
Disconnected, if it is judged that with the gradient, then to jump to step 6, otherwise the controller is standard to control using the second electric signal
Valve processed sends control signal, and the speed limit to automobile driving speed is realized to determine the opening degree of control valve.Using this scheme
In overspeed of vehicle, the road conditions of automobile current driving are judged in real time, if current road segment has the gradient, it is necessary to examine
Consider and corresponding judgement is made according to the gradient, and corresponding reaction is made according to judging result, so that the system is adapted to not
Road environment together, road conditions correctly can control its speed while the speed limit of current road segment, can guarantee that automobile energy
Normally travel, has hommization, intelligence, highly practical benefit.Also, this mode is a kind of preferred embodiments
Illustrate, but be not limited thereto.
In another example, in the step 7, the controller is based on the current traveling shape of the automobile received
Whether state is judged in uplink state, if again to control valve after then being compensated by the compensation instrument to secondary signal
Control signal is sent, the speed limit to automobile driving speed, and return to step one are realized to determine the opening degree of control valve.Using
This scheme compensates control signal so that the travel speed of automobile can be kept in overspeed of vehicle and when being in uplink again
While in speed limit, automobile energy normally travel, automobile oil mass deficiency, forced ascending engine give vapour when will not be because of uplink
The dynamics of car not enough damages automobile caused by engine, or even situation about falling back occurs, and then brings security incident, has
The high benefit of safety coefficient.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another example, in the step 4, the controller is based on the current traveling shape of the automobile received
Whether state is judged in uplink state, if not then sending control signal to control valve using the second electric signal as standard, together
Shi Qidong ABS brake system, to determine the opening degree of control valve and be realized by ABS brake system to automobile driving speed
Speed limit, return to step one.Using this scheme in overspeed of vehicle and when being in downstream state, to the corresponding electric signal of speed limit
When controlling the opening degree of control valve, while start ABS brake system and carry out auxiliary speed limit, when preventing that automobile is in abrupt slope, because used
Property strength and voluntarily glide, caused by hypervelocity and security incident generation, have it is safe, hommization it is favourable it
Place.Also, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
Number of devices and treatment scale described herein are the explanations for simplifying the present invention.The automobile of the present invention is limited
The application of speed system and its control method, modifications and variations will be readily apparent to persons skilled in the art.
As described above, according to the present invention, first, due to the navigator in the speed limit acquisition device that is set in the present invention, ABS
Brake system, velocity sensor utilize the device of automobile itself, therefore relative to traditional speed-limiting device, its have reduce into
This effect.
Second, the section speed limit that is got in the present invention by navigator is controlled control valve opening degree, with
Control the amount of gasoline of automobile engine, to realize the effect of speed limit, and at the same time can to different section situations, as uplink, downlink,
Straight trip situation is analyzed, and to reach different situations, gives different control signals, has hommization, practicality height, peace
The high effect of overall coefficient.
Third, can be according to the speed limit requirement that current section falls to the travel speed of automobile in the present invention, safety, save heart
Intelligence, automatic speed-limiting are realized to the travel speed of automobile, controlled manually without driver, driver's operation is simplified, makes
Driver is not easy to fatigue and have more preferable driving experience.
Fourth, once entering intelligent speed-limiting pattern in the present invention, the effect of the original foot-operated oil-control valve of automobile is only to have
To engine oil and not two kinds of alternatives of fuel feeding, and the number of oil mass can be directly controlled by speed limiting system,
Prevent beginner maloperation or by the oil-control valve of automobile as throttle come the security incident stepping on and trigger.
Fifth, the speed limiting system of the present invention, which can also receive, is manually entered speed limit as electric signal, to realize to control
The control of the opening degree of valve, achievees the purpose that at the uniform velocity to travel, and can simplify the operation of driver, and beginner is also fitted
With, can by speed control in a safer velocity amplitude.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With.It can be applied to this various suitable practical field completely., can be easily for those skilled in the art
Realize other modification.Therefore under the universal limited without departing substantially from claim and equivalency range, this is practical and unlimited
In specific details and shown here as the legend with description.
Claims (5)
- A kind of 1. Car Automatic Speed Limit control system, it is characterised in that including：Control unit, it includes controller, ABS brake gears and is arranged on automobile oil supply pipe to control gasoline flow Control valve, the ABS brake gears, control valve are connected with the controller；Signal gathering unit, it includes being used for velocity sensor, the collection automobile current driving road segment for gathering automobile driving speed The speed limit acquisition device and the travel direction of the current automobile of collection and the satellite positioning device of residing road conditions of speed limit, and it is described Velocity sensor, speed limit acquisition device, satellite positioning device are connected to controller, wherein the controller is based on passing from speed The signal that sensor and speed limit acquisition device receive judges whether current automobile exceeds the speed limit, and according to the judgement signal and from defending The information that star positioner is got determines whether the opening degree of control valve and ABS brake gears start；The speed limit acquisition device includes navigator and identifier sequentially connected with navigator and amplifier, the amplification Device, the output terminal of velocity sensor are connected to comparator, and the output terminal of the comparator is connected to controller；The traffic information that the satellite positioning device obtains is present road situation information；The controller is also associated with compensation instrument, and the compensation instrument is connected with control valve.
- 2. a kind of control method using Car Automatic Speed Limit control system as described in claim 1 to automobile speed limit, its It is characterized in that, comprises the following steps：Step 1: gather the current velocity amplitude of output automobile and current respectively by the velocity sensor, speed limit acquisition device The speed limit in section, and be converted as the first electric signal and the second electric signal；Step 2: receiving the first electric signal and the second electric signal by the comparator, and the two is compared to obtain a ratio Compared with as a result, and the comparative result is sent to controller；Step 3: the controller, which is based on the comparative result, judges whether automobile drives over the speed limit on current road segment, if then Step 4 is jumped to, otherwise return to step one；Step 4: the road condition information that is presently in of automobile is obtained by the satellite positioning device and is sent to controller；Step 5: whether the controller there is the gradient to judge based on the road condition information received, to present road, Step 6 is jumped to if having, control signal is otherwise sent to control valve according to judgement result, to determine the opening degree of control valve, And return to step one；Step 6: automobile current driving directional information is obtained by the satellite positioning device and is sent to controller；Step 7: whether the controller is currently in automobile upper based on the current transmits information of the automobile received Row state is judged, and sends control signal to control valve or/and ABS brake system according to judgement result, to determine control The opening degree of valve and whether start ABS brake system, and return to step one；Wherein, in the step 1, identifier in the speed limit acquisition device passes through the speed limit voice that is sent to navigator Current road segment speed limit numerical value is identified in signal or the electronic map being stored in navigator, and converts thereof into corresponding electricity Signal, then sent after being amplified by amplifier to electric signal to comparator；In the step 7, the controller based on the current transport condition of the automobile received whether in uplink state into Row judges, if control signal is sent to control valve again after then being compensated by the compensation instrument to secondary signal, to determine The opening degree of control valve realizes the speed limit to automobile driving speed, and return to step one.
- 3. Car Automatic Speed Limit control system as claimed in claim 2 is to the control method of automobile speed limit, it is characterised in that In the step 2, the comparator docks received first electric signal and the second electric signal and is compared, if the first telecommunications Number value be more than the second electric signal value, then to controller output 1, otherwise export 0；In the step 3, the controller Receive comparator output numerical value, as numerical value be 1, then judge hypervelocity.
- 4. Car Automatic Speed Limit control system as claimed in claim 2 to automobile speed limit control method, it is characterised in that In the step 5, road condition information that the controller is presently in based on the automobile received, by being disposed thereon Determination module whether there is the gradient to judge the present road residing for automobile, if it is judged that for the gradient, then Step 6 is jumped to, otherwise the controller sends control signal using the second electric signal as standard to control valve, to determine control The opening degree of valve realizes the speed limit to automobile driving speed.
- 5. the control method of Car Automatic Speed Limit control system automobile speed limit as claimed in claim 2, it is characterised in that in institute State in step 4, whether the controller is judged in uplink state based on the current transport condition of the automobile received, If not then sending control signal to control valve using the second electric signal as standard, while start ABS brake system, to determine control The opening degree of valve simultaneously realizes the speed limit to automobile driving speed, return to step one by ABS brake system.
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| CN201510095708.4A CN104709284B (en) | 2015-03-04 | 2015-03-04 | A kind of Car Automatic Speed Limit control system and control method |
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| CN201510095708.4A CN104709284B (en) | 2015-03-04 | 2015-03-04 | A kind of Car Automatic Speed Limit control system and control method |
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| CN104709284B true CN104709284B (en) | 2018-04-24 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105346541B (en) * | 2015-11-23 | 2018-01-16 | 山东科技大学 | A kind of automobile active speed limiting system and its operation method based on GIS |
| CN105390010A (en) * | 2015-12-07 | 2016-03-09 | 厦门精图信息技术股份有限公司 | Intelligent speed limiting system and method for ensuring driving safety |
| CN105416064A (en) * | 2015-12-08 | 2016-03-23 | 厦门精图信息技术股份有限公司 | Pedestrian crosswalk vehicle speed limiting system and method |
| CN106541947B (en) * | 2016-11-03 | 2019-08-16 | 北京汽车股份有限公司 | Vehicle active Ride Control System and control method and vehicle, intelligent vehicle device |
| CN109703559B (en) * | 2017-10-25 | 2020-09-29 | 上海汽车集团股份有限公司 | Vehicle speed limit safety control method and device |
| CN109532845B (en) * | 2018-12-21 | 2020-12-01 | 奇瑞汽车股份有限公司 | Control method and device of intelligent automobile and storage medium |
| CN112721927A (en) * | 2021-01-13 | 2021-04-30 | 江西台德智慧科技有限公司 | Intelligent speed limiting method and device for vehicle, vehicle and storage medium |
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| CN104709284A (en) | 2015-06-17 |
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