CN109849663A - A kind of the intelligent speed-limiting method and its intelligent speed-limiting device of vehicle - Google Patents
A kind of the intelligent speed-limiting method and its intelligent speed-limiting device of vehicle Download PDFInfo
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- CN109849663A CN109849663A CN201811574994.2A CN201811574994A CN109849663A CN 109849663 A CN109849663 A CN 109849663A CN 201811574994 A CN201811574994 A CN 201811574994A CN 109849663 A CN109849663 A CN 109849663A
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Abstract
The invention discloses the intelligent speed-limiting methods and its intelligent speed-limiting device of a kind of vehicle.The step of intelligent speed-limiting method of the vehicle are as follows: the car weight of real-time measurement vehicle and the car weight voltage value for forming real-time change；Threshold value is set by the car weight voltage value, and judges whether the gas pedal trampling displacement voltage value is less than the threshold value；When the gas pedal trampling displacement voltage value is less than the threshold value, the gas pedal trampling displacement voltage value is the adjustment parameter, and otherwise, the threshold value is the adjustment parameter.The present invention passes through the size of acquisition and the threshold value and the gas pedal trampling displacement voltage value in real time.Then the minimum value in both the threshold value and the gas pedal trampling displacement voltage value is taken to be used to control the aperture of the air throttle as the adjustment parameter.So that the aperture of the air throttle is in a limit value hereinafter, to achieve the purpose that the speed of vehicle described in intelligent control forever.
Description
Technical field
The present invention relates to automobile intelligent speed control and security technology area, in particular to a kind of intelligent control air throttle is opened
Degree prevents the technical solution of excessive velocities, the intelligent speed-limiting method and its intelligent speed-limiting device of specially a kind of vehicle.
Background technique
With the quickening of economic rapid development and Development of China's Urbanization, while the violent speed of urban population increases, city is public
Traffic is also developed rapidly.But bus traffic accident incidence is relatively high.This is because driver is due to driving
It is bad or due to fatigue driving to sail technology, unexpected speed change of stepping on the gas suddenly is in the presence of.Speed is too fast, and to lose passenger's body flat
It weighs and falls down, collides, squeeze and cause injured or article is impaired to cause the accident.In addition, being striven since driver quarrels with passenger
It holds or even limbs conflict.Lead to driver distraction or even confusion of thinking in this way.When vehicle fast running, drive
The person of sailing is difficult in short distance to come to a complete stop vehicle is safe and reliable, easily causes vehicle driving out of control, serious traffic accident occurs.
For above situation, some vehicles can be equipped with voice alarm system alert driver vehicle driving status and installation
Isolating door keeps apart in driver region with passenger area, relatively quiet driving space is provided to driver, to avoid above-mentioned
The generation of phenomenon.But these schemes are but without solving the existing driving risk of driver itself, the i.e. fatigue driving of driver
Cause speed too fast, this is also breakneck.In addition, the subjective hypervelocity of driver itself, also be easy to cause major accident to endanger
Passenger survival property safety.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide the intelligent speed-limiting method and its intelligent speed-limiting device of a kind of vehicle
The subjective hypervelocity of driver itself, is unable to control speed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of intelligent speed-limiting method of vehicle, the vehicle
Include:
Displacement sensor is mounted on the gas pedal under the gas pedal of the vehicle for vehicle described in real-time measurement
Trampling displacement, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed；
Air throttle, aperture determine the speed of the vehicle；
Electronic control unit module, is used to control the aperture of the air throttle according to multiple parameters, in the multiple parameter
One of parameter is the gas pedal trampling displacement voltage value；
The parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter, the Vehicular intelligent speed limit
Method adjusts the aperture of the air throttle by adjusting the adjustment parameter, and the Vehicular intelligent method for limiting speed includes following step
It is rapid:
The car weight of real-time measurement vehicle, and the car weight voltage value an of real-time change is consequently formed；
Threshold value is set by the car weight voltage value, and judges whether the gas pedal trampling displacement voltage value is less than
The threshold value；
When the gas pedal trampling displacement voltage value is less than the threshold value, the gas pedal trampling displacement voltage
Value is the adjustment parameter, and otherwise, the threshold value is the adjustment parameter；
Wherein, when the car weight voltage value transmission failure, the threshold value is set by a preset value；And work as the oil
When door pedal trampling displacement voltage value reaches the preset value, judge that the gas pedal trampling displacement voltage value reaches institute
Whether the duration for stating preset value is greater than T, and T is positive integer；
When the duration that the gas pedal trampling displacement voltage value reaches the preset value is greater than T, the vehicle
It alarms, otherwise, the vehicle is without alarm.
Preferably, the vehicle further include:
Electronic throttle module, is used to adjust the aperture of the air throttle, and the electronic control unit module passes through control institute
State the aperture that electronic throttle module adjusts the air throttle.
Preferably, the car weight voltage value transmission failure is pressure sensor failure or the pressure sensor
Failure is connect with the electronic control unit module.
Preferably, by the software control procedure in write-in chip realize the gas pedal trampling displacement voltage value with
The comparison of the threshold value.
Preferably, the vehicle further include:
Pressure sensor is mounted on car weight of the bottom end of the vehicle for vehicle described in real-time measurement.
Preferably, the vehicle further include:
Alarm lamp is mounted on the instrument board of the vehicle；
Indicator light is mounted on the instrument board of the vehicle；
Wherein, when the vehicle is alarmed, the alarm lamp is flashed.
Preferably, the vehicle further include:
Signal synthesis module is communicated by data/address bus and electronic control unit module, and the signal synthesis module is defeated
Signal out is the another one parameter in the multiple parameter.
Preferably, the signal synthesis module includes mutually independent cruise control unit, automatic transmission unit and sky
Adjust control unit.
Preferably, the vehicle further include:
Single-pole double-throw switch (SPDT) is mounted in the vehicle for controlling the connection and disconnection of the indicator light.
The present invention also provides a kind of intelligent speed-limiting device of vehicle, it is used to cooperate Vehicular intelligent speed limit side described in one kind
Method uses, and the vehicle includes:
Displacement sensor is mounted on the gas pedal under the gas pedal of the vehicle for vehicle described in real-time measurement
Trampling displacement, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed；
Air throttle, aperture determine the speed of the vehicle；
Electronic control unit module, is used to control the aperture of the air throttle according to multiple parameters, in the multiple parameter
One of parameter is the gas pedal trampling displacement voltage value；
The parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter, the Vehicular intelligent speed limit
Device adjusts the aperture of the air throttle by adjusting the adjustment parameter, and the Vehicular intelligent speed-limiting device includes:
Voltage sensor module, is used for the car weight of real-time measurement vehicle, and the car weight of a real-time change is consequently formed
Voltage value；
Voltage comparator module when being used to set threshold value for the car weight voltage value, judges that the throttle is stepped on
Whether plate trampling displacement voltage value is less than the threshold value；
Result judgement module is used to determine when the gas pedal trampling displacement voltage value is less than the threshold value
The gas pedal trampling displacement voltage value is the adjustment parameter, otherwise, it is determined that the threshold value is the adjustment parameter；
Setting module is used for when the car weight voltage value transmission failure, sets the threshold value for a preset value；
Alarm decision module is used to sentence when the gas pedal trampling displacement voltage value reaches the preset value
Whether duration that the gas pedal trampling displacement voltage value reaches the preset value of breaking is greater than T, and T is positive integer；
Alarm determination module is used to reach continuing for the preset value when the gas pedal trampling displacement voltage value
When time is greater than T, determine that the vehicle is alarmed, otherwise, it is determined that the vehicle is without alarm.
Compared with prior art, the beneficial effects of the present invention are:
1, the advantage of the invention is that whole system real-time control, reliability are higher.Due to using pressure sensor,
It accurately can convert corresponding voltage value in real time by the variation of vehicle weight and export.It can be with by electronic control unit module
Effectively according to passenger carrying capacity number strictly limit the maximum opening of air throttle, to controlling speed in safe range
It is interior.Using the present invention can efficiently solve at present as bus travel speed it is too fast caused by hurt objective event and thus cause
Serious traffic accident, improve public transit vehicle Transport Safety.
2, whether the present invention reaches the preset value A by the judgement gas pedal trampling displacement voltage value B, and
Whether the duration that the gas pedal trampling displacement voltage value B reaches the preset value A is greater than the two conditions of T S
Determine whether the vehicle indeed is in alarm condition, to guarantee the accuracy of detection, to realize intelligent control vehicle row
Sail the purpose of speed.
Detailed description of the invention
Fig. 1 is the system structure diagram of vehicle；
Fig. 2 is the intelligent speed-limiting method flow diagram of vehicle；
Fig. 3 is the principle flow chart that vehicle is in alarm condition in embodiment 2；
Fig. 4 is the scheme of installation of pressure sensor in embodiment 3；
Fig. 5 is the enlarged cross-sectional view of pressure sensor and damping device composite structure；
Fig. 6 is A-A structural schematic diagram in Fig. 5.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In social life, when general driver is in fatigue driving, it is too fast to will lead to speed；In addition there is also drivers certainly
Body subjectivity hypervelocity causes speed too fast.Both results all be easy to cause major accident, endanger passenger survival property safety.And show
Have and do not make corresponding processing scheme in technology in view of the above problems, for this purpose, the present invention proposes a kind of intelligent speed-limiting of vehicle
Method and a kind of intelligent speed-limiting device of vehicle.With reference to Fig. 1, the vehicle includes air throttle (not shown), voltage ratio
Compared with control module 6, electronic throttle module 7, accelerator pedal module 2, voltage sensor module 1, signal synthesis module 9 and electricity
Control unit module 8.The accelerator pedal module 2 includes displacement sensor, and voltage sensor module 1 includes pressure sensor 20,
The pressure sensor 20 is mounted on car weight of the bottom end of the vehicle for vehicle described in real-time measurement.
Wherein, the throttle that displacement sensor is mounted under the gas pedal of the vehicle for vehicle described in real-time measurement is stepped on
The trampling displacement of plate, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed.The aperture of air throttle
Determine the speed of the vehicle.Electronic control unit module 8 is used to control the aperture of the air throttle according to multiple parameters.It is the multiple
One of parameter in parameter is the gas pedal trampling displacement voltage value.The signal synthesis module 9 includes mutual
Independent cruise control unit, automatic transmission unit and conditioning control unit.Signal synthesis module 9 passes through data/address bus and electricity
Control unit module 8 is communicated.Specifically, signal synthesis module 9 is by the cruise control unit, automatic transmission unit and sky
The signal for adjusting control unit to export is by the data bus transmission to electronic control unit module 8.The signal synthesis module 9 exports
Signal be the multiple parameter in another one parameter.Electronic throttle module 7 is for adjusting opening for the air throttle
Degree.The electronic control unit module 8 adjusts the aperture of the air throttle by controlling the electronic throttle module 7.Specifically, electric
Sub- throttle module 7 includes servomotor.The servomotor receives the control signal of the transmission of electronic control unit module 8
Afterwards, it drives the throttle execution mechanism to change the throttle opening of the engine of the vehicle, and then changes turning for engine
Speed and power, to change the travel speed of the vehicle.
Embodiment 1
The parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter.The Vehicular intelligent speed limit
Method adjusts the aperture of the air throttle by adjusting the adjustment parameter.
With reference to Fig. 2, a kind of intelligent speed-limiting method of vehicle comprising following steps:
The car weight of real-time measurement vehicle, and the car weight voltage value an of real-time change is consequently formed.Specifically, voltage is passed
Pressure sensor 20 in sensor module 1 is mounted on the car weight in the bottom end of the vehicle for vehicle described in real-time measurement.
Threshold value is set by the car weight voltage value.And judge whether the gas pedal trampling displacement voltage value is less than
The threshold value；In the present embodiment, the gas pedal trampling displacement can be realized by the software control procedure in write-in chip
The comparison of voltage value and the threshold value.That is, voltage, which compares control module 6, realizes gas pedal by the software control procedure of write-in
The comparison of trampling displacement voltage value and the threshold value.And in the present embodiment, the use of control module 6 can be compared by the voltage of setting
In the size for comparing the gas pedal trampling displacement voltage value and the threshold value, and using comparison result as the adjusting
Parameter inputs to electronic control unit module 8, and the electronic control unit module 8 controls servomotor according to the adjustment parameter, utilizes
Servomotor controls the aperture of the air throttle.
When the gas pedal trampling displacement voltage value is less than the threshold value, the gas pedal trampling displacement voltage
Value is the adjustment parameter, and otherwise, the threshold value is the adjustment parameter；
Wherein, when the car weight voltage value transmission failure, the threshold value is set by a preset value.The car weight electricity
Pressure value transmission failure is the voltage sensor module 1 failure or the voltage sensor module 1 and the electronic control unit
The connection of module 8 is broken down.And when the gas pedal trampling displacement voltage value reaches the preset value, the oil is judged
Whether the duration that door pedal trampling displacement voltage value reaches the preset value is greater than T, and T is positive integer；In the present embodiment
In, T can be set to 10S.
When the duration that the gas pedal trampling displacement voltage value reaches the preset value is greater than T, the vehicle
It alarms, otherwise, the vehicle is without alarm.
To remind vehicle described in the driver of the vehicle to be in alert status, also increase alarm lamp 5, instruction on vehicle
Lamp 4, switch button 10 and single-pole double-throw switch (SPDT) 3 (as shown in Figure 1).The alarm lamp 5 and indicator light 4 are installed in described
On the instrument board of vehicle.When the vehicle is alarmed, the alarm lamp 5 is flashed.The single-pole double-throw switch (SPDT) 3 is installed
For controlling the connection and disconnection of the indicator light 4 in the vehicle.Single-pole double-throw switch (SPDT) 3 is adjusted using switch button 10
Whether location status is off so as to control instructions lamp 4.Switch button 10 is manually controlled by the driver on vehicle.Work as vehicle in this way
Starting after, when not pressing switch button 10, indicator light 4 light remind driver press switch button 10, to transmit
State car weight voltage value.Then, then cooperate whether alarm lamp 5 flashes, facilitate driver and passenger that can understand in real time described
The speed state of vehicle.
In the present embodiment in the intelligent speed-limiting method of vehicle, by obtaining in real time and the threshold value is stepped on the throttle
The size of plate trampling displacement voltage value.Then it takes in both the threshold value and the gas pedal trampling displacement voltage value
Minimum value is used to control the aperture of the air throttle as the adjustment parameter.So that the aperture of the air throttle is in one forever
A limit value is hereinafter, to achieve the purpose that the speed of vehicle described in intelligent control.
Embodiment 2
Principle, the gas pedal that the present embodiment will alarm to alarm lamp 5 described in embodiment 1 and the indicator light 4
Trampling displacement voltage value and the principle of the threshold value comparison are illustrated.Wherein, the gas pedal trampling displacement is set
Voltage value is B.
With reference to Fig. 3, the principle steps that the vehicle is in alarm condition are as follows:
S1, judge whether switch button 10 is pressed, be pressed, the length of indicator light 4 is gone out, and step S2 is then carried out；Not yet
It is pressed, the length of indicator light 4 is bright, then carries out step S6；
S2, judge whether the voltage sensor module 1 exports car weight voltage value C, be then to carry out step S3, it is no, then into
Row step S6；
S3, the car weight voltage value C are set as the threshold value, and judge the gas pedal trampling displacement voltage value B
Whether it is greater than the threshold value C, is then to carry out step S4；It is no, then carry out step S5；
S4, determine that the vehicle is in a safe condition.At this point, the length of indicator light 4 is gone out, the alarm lamp 5 extinguishes.And institute
Stating adjustment parameter is the threshold value C, the as described car weight voltage value.
S5, determine that the vehicle is in a safe condition.At this point, the length of indicator light 4 is gone out, the alarm lamp 5 extinguishes.And institute
Stating adjustment parameter is the gas pedal trampling displacement voltage value B.
S6, the threshold value is set by a preset value A.
S7, judge whether the gas pedal trampling displacement voltage value B is greater than preset value A, be then to carry out step S8,
It is no, then carry out step S10；
S8, judge whether the output duration of the gas pedal trampling displacement voltage value B is greater than T, be then to carry out
Step S9, it is no, then carry out step S10；
S9, determine that the vehicle is in alarm condition.At this point, the alarm lamp 5 flashes.And the adjustment parameter is described
Preset value A.
S10, determine that the vehicle is in normal operation.At this point, the alarm lamp 5 extinguishes, the adjustment parameter is institute
State gas pedal trampling displacement voltage value B.
In above method step, when can avoid the occurrence of following two extreme problem, the intelligent speed-limiting method of the vehicle
What cannot be run or run is not accurate.
First, when the car weight voltage value transmission failure.That is: the described switch button 10 is not pressed or due to mechanical event
Barrier causes voltage sensor module 1 and voltage comparator module 6 cannot normal connection.For this problem, the present embodiment utilizes electricity
6 internal preset of comparator module, one preset value A is pressed, is carried out with preset value A and the gas pedal trampling displacement voltage value B
Compare, the travel speed of the vehicle is limited to some value hereinafter, achieving the purpose that carry out speed limit to the vehicle.
Second, vehicle is under abnormal travel situations or driver is in the case where autonomous normal hypervelocity manipulates travel situations, described
Overspeed of vehicle is simultaneously in alarm condition.In response to this problem, in the present embodiment, by determining the gas pedal trampling displacement electricity
Whether pressure value B reaches the preset value A and the gas pedal trampling displacement voltage value B reaches holding for the preset value A
Whether the continuous time is greater than the two conditions of T S to determine whether the vehicle indeed is in alarm condition, to guarantee the standard of detection
True property, to realize the purpose of intelligent control Vehicle Speed.
Embodiment 3
The real-time car weight that pressure sensor 20 measures vehicle is all made of in embodiment 1 and embodiment 2.Wherein, pressure sensing
Device 20 is mounted on the bottom end of vehicle.Vehicle can generate in the process of moving in this way jolts and seismaesthesia is transmitted to pressure sensor 20,
Cause 20 measurement accuracy of pressure sensor inaccurate.And vehicle is in the process of moving, can adsorb on the surface of pressure sensor 20 big
Measure dust.For this purpose, the present embodiment improves pressure sensor 20 involved in embodiment 1 and embodiment 2.
With reference to Fig. 4, one end of pressure sensor 20 is connected by the bottom end of a damping device and vehicle.Pressure sensor
The protective cover 10 being transparent is installed on 20 other end.
With reference to Fig. 5 and Fig. 6, damping device includes vibration damper plate 30, damping spring 40, sliding panel 50, trapezoid block 60, rack gear
70, connecting spring 80, limit 90, gear 100, shaft 110, flabellum 120.
Wherein, vibration damper plate 30 is hollow structure.The outer top of vibration damper plate 30 and the bottom end of vehicle connect, outside vibration damper plate 30
Bottom end is connect with pressure sensor 20.The number of damping spring 40 is at least one, and each damping spring 40 is respectively positioned on damping
The inside of plate 30.In the present embodiment, the number of damping spring 40 is three.One end of each damping spring 40 with vibration damper plate 30
Interior top connection.Sliding panel 50 is slidably arranged in the inside of vibration damper plate 30.The upper surface of sliding panel 50 and damping spring 40
Other end connection.The trapezoidal shape of the sectional area of trapezoid block 60, the sectional area of trapezoid block 60 is in isosceles trapezoid shape in the present embodiment.Ladder
The upper surface length of shape block 60 is greater than the lower end surface length of trapezoid block 60.The number of rack gear 70 is two.The one of each rack gear 70
Bevel edge corresponding with trapezoid block 60 is held to be slidably connected.Two gag lever posts 90 corresponding with two rack gears 70.Gag lever post 90 with
The rear wall of corresponding rack gear 70 connects, and the inner sidewall of the other end and vibration damper plate 30 of gag lever post 90 is slidably connected.Two limits
The side wall of position bar 90 passes through a connecting spring 80 respectively and connect with the inner wall of vibration damper plate 30.
At least one radiator, radiator are located at the front side of rack gear 70.Radiator includes at least one gear
100.Gear 100 is located at the front side of rack gear 70 and is meshed with rack gear 70.In the present embodiment, the number of gear 100 is 2, one
A gear 100 is located at the front side of a rack gear 70.At least one shaft 110 corresponding at least one gear 100, shaft
110 one end is fixedly plugged on corresponding gear 100, and the other end of shaft 110 sequentially passes through vibration damper plate 30 and pressure passes
The side wall of sensor 20 and the inside for reaching pressure sensor 20.Shaft 110 is connect by a bearing with the side wall of vibration damper plate 30,
Shaft 110 is connect by another bearing with the side wall of pressure sensor 20.Corresponding at least one shaft 110 at least one
A flabellum 120.Flabellum 120 is located at the inside of pressure sensor 20 and connects with the other end of corresponding shaft 110.
In the present embodiment, when vehicle jolts, preliminary shock insulation is carried out using vibration damper plate 30 and damping spring 40, to keep away
Exempt from pressure sensor 20 to vibrate with jolting for vehicle.Meanwhile when vehicle jolts, sliding panel 50 can be along subtracting
The inner wall of shake plate 30 slides up and down.In this way, trapezoid block 60 can also move up and down.When trapezoid block 60 moves downward,
Trapezoid block 60 can squeeze two rack gears 70, and two 70 back movements of rack gear are simultaneously engaged with gear 100.Gear 100 drives shaft 110
And the hair rotation of flabellum 120.The energy that vehicle vibration generates thus is converted into the kinetic energy of flabellum 120, with reduce vehicle to
20 bring seismaesthesia of pressure sensor.Meanwhile the rotation of flabellum 120 can avoid pressure to radiating inside pressure sensor 20
Sensor 20 works under high temperature environment, improves the service life of pressure sensor 20.
In some embodiments, deashing mechanism can be also set on damping device for clearing up the ash on pressure sensor 20
Dirt.It can avoid having fallen many dusts on pressure sensor 20 in this way.As shown in figure 5, deashing mechanism includes soft air pipe 130, support
Bar 140 and nozzle 150.
Wherein, the number of soft air pipe 130 is at least one.Specifically, the number of soft air pipe 130 is in some embodiments
Two.One end of soft air pipe 130 and the side wall of vibration damper plate 30 are penetrated through and are connected.The number of nozzle 150 be at least one and at least
One soft air pipe 130 is corresponding.The other end of one end of nozzle 150 and corresponding soft air pipe 130 connects, nozzle 150 it is another
It is directed toward pressure sensor 20 in one end.In this way, air-flow can be sprayed by nozzle 150, will be pressed when sliding panel 50 is in upper and lower interaction
Dust on force snesor 20 is blown off.
Embodiment 4
It is used for a kind of intelligent speed-limiting method of vehicle described in cooperation embodiment 1, the present embodiment proposes a kind of vehicle
Intelligent speed-limiting device.The vehicle includes:
Displacement sensor is mounted on the gas pedal under the gas pedal of the vehicle for vehicle described in real-time measurement
Trampling displacement, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed；
Air throttle, aperture determine the speed of the vehicle；
Electronic control unit module, is used to control the aperture of the air throttle according to multiple parameters, in the multiple parameter
One of parameter is the gas pedal trampling displacement voltage value；
The parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter.The Vehicular intelligent speed limit
Device adjusts the aperture of the air throttle by adjusting the adjustment parameter.The Vehicular intelligent speed-limiting device includes:
Voltage sensor module 1, is used for the car weight of real-time measurement vehicle, and the car weight of a real-time change is consequently formed
Voltage value；
Voltage comparator module when being used to set threshold value for the car weight voltage value, judges that the throttle is stepped on
Whether plate trampling displacement voltage value is less than the threshold value；
Result judgement module is used to determine when the gas pedal trampling displacement voltage value is less than the threshold value
The gas pedal trampling displacement voltage value is the adjustment parameter, otherwise, it is determined that the threshold value is the adjustment parameter；
Setting module is used for when the car weight voltage value transmission failure, sets the threshold value for a preset value；
Alarm decision module is used to sentence when the gas pedal trampling displacement voltage value reaches the preset value
Whether duration that the gas pedal trampling displacement voltage value reaches the preset value of breaking is greater than T, and T is positive integer；
Alarm determination module is used to reach continuing for the preset value when the gas pedal trampling displacement voltage value
When time is greater than T, determine that the vehicle is alarmed, otherwise, it is determined that the vehicle is without alarm.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of intelligent speed-limiting method of vehicle, the vehicle include:
Displacement sensor is mounted on stepping on for the gas pedal of vehicle described in real-time measurement under the gas pedal of the vehicle
Displacement is pressed, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed；
Air throttle, aperture determine the speed of the vehicle；
Electronic control unit module, is used to control the aperture of the air throttle according to multiple parameters, in the multiple parameter wherein
One parameter is the gas pedal trampling displacement voltage value；
It is characterized in that, the parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter, the vehicle
Intelligent speed-limiting method adjusts the aperture of the air throttle, the Vehicular intelligent method for limiting speed packet by adjusting the adjustment parameter
Include following steps:
The car weight of real-time measurement vehicle, and the car weight voltage value an of real-time change is consequently formed；
Threshold value is set by the car weight voltage value, and it is described to judge whether the gas pedal trampling displacement voltage value is less than
Threshold value；
When the gas pedal trampling displacement voltage value is less than the threshold value, the gas pedal trampling displacement voltage value is
The adjustment parameter, otherwise, the threshold value are the adjustment parameter；
Wherein, when the car weight voltage value transmission failure, the threshold value is set by a preset value；And when the throttle is stepped on
When plate trampling displacement voltage value reaches the preset value, judge that the gas pedal trampling displacement voltage value reaches described pre-
If whether the duration of value is greater than T, T is positive integer；
When the duration that the gas pedal trampling displacement voltage value reaches the preset value is greater than T, the vehicle is carried out
Alarm, otherwise, the vehicle is without alarm.
2. intelligent speed-limiting method according to claim 1, which is characterized in that the vehicle further include:
Electronic throttle module is used to adjust the aperture of the air throttle, and the electronic control unit module is by controlling the electricity
Sub- throttle module adjusts the aperture of the air throttle.
3. intelligent speed-limiting method according to claim 1, which is characterized in that the car weight voltage value transmission failure is described
Pressure sensor breaks down or the pressure sensor with the electronic control unit module connect failure.
4. intelligent speed-limiting method according to claim 1, which is characterized in that pass through the software control procedure in write-in chip
Realize the comparison of the gas pedal trampling displacement voltage value and the threshold value.
5. intelligent speed-limiting method according to claim 1, which is characterized in that the vehicle further include:
Pressure sensor is mounted on car weight of the bottom end of the vehicle for vehicle described in real-time measurement.
6. intelligent speed-limiting method according to claim 1, which is characterized in that the vehicle further include:
Alarm lamp is mounted on the instrument board of the vehicle；
Indicator light is mounted on the instrument board of the vehicle；
Wherein, when the vehicle is alarmed, the alarm lamp is flashed.
7. intelligent speed-limiting method according to claim 1, which is characterized in that the vehicle further include:
Signal synthesis module is communicated by data/address bus and electronic control unit module, the signal synthesis module output
Signal is the another one parameter in the multiple parameter.
8. intelligent speed-limiting method according to claim 7, which is characterized in that the signal synthesis module includes mutually indepedent
Cruise control unit, automatic transmission unit and conditioning control unit.
9. intelligent speed-limiting method according to claim 1, which is characterized in that the vehicle further include:
Single-pole double-throw switch (SPDT) is mounted in the vehicle for controlling the connection and disconnection of the indicator light.
10. a kind of intelligent speed-limiting device of vehicle is used to cooperate Vehicular intelligent described in any one in claim 1 to 9
Method for limiting speed uses, and the vehicle includes:
Displacement sensor is mounted on stepping on for the gas pedal of vehicle described in real-time measurement under the gas pedal of the vehicle
Displacement is pressed, and the gas pedal trampling displacement voltage value an of real-time change is consequently formed；
Air throttle, aperture determine the speed of the vehicle；
Electronic control unit module, is used to control the aperture of the air throttle according to multiple parameters, in the multiple parameter wherein
One parameter is the gas pedal trampling displacement voltage value；
It is characterized in that, the parameter that definition characterizes the gas pedal trampling displacement voltage value is adjustment parameter, the vehicle
Intelligent speed-limiting device adjusts the aperture of the air throttle, the Vehicular intelligent speed-limiting device packet by adjusting the adjustment parameter
It includes:
Voltage sensor module, is used for the car weight of real-time measurement vehicle, and the car weight voltage an of real-time change is consequently formed
Value；
Voltage comparator module when being used to set threshold value for the car weight voltage value, judges that the gas pedal is stepped on
Whether pressure displacement voltage value is less than the threshold value；
Result judgement module is used for when the gas pedal trampling displacement voltage value is less than the threshold value, described in judgement
Gas pedal trampling displacement voltage value is the adjustment parameter, otherwise, it is determined that the threshold value is the adjustment parameter；
Setting module is used for when the car weight voltage value transmission failure, sets the threshold value for a preset value；
Alarm decision module is used to judge institute when the gas pedal trampling displacement voltage value reaches the preset value
It states gas pedal trampling displacement voltage value and reaches whether duration of the preset value is greater than T, T is positive integer；
Alarm determination module is used to reach the duration of the preset value when the gas pedal trampling displacement voltage value
When greater than T, determine that the vehicle is alarmed, otherwise, it is determined that the vehicle is without alarm.
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