CN109488465A - Accelerator control method and device - Google Patents
Accelerator control method and device Download PDFInfo
- Publication number
- CN109488465A CN109488465A CN201811457180.0A CN201811457180A CN109488465A CN 109488465 A CN109488465 A CN 109488465A CN 201811457180 A CN201811457180 A CN 201811457180A CN 109488465 A CN109488465 A CN 109488465A
- Authority
- CN
- China
- Prior art keywords
- time
- acquisition time
- gas pedal
- corresponding relationship
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000006073 displacement reaction Methods 0.000 claims abstract description 149
- 230000001133 acceleration Effects 0.000 claims description 87
- 238000005070 sampling Methods 0.000 claims description 38
- 230000000875 corresponding effect Effects 0.000 description 228
- 230000033001 locomotion Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 2
- 101710176296 Switch 2 Proteins 0.000 description 2
- 101150102866 adc1 gene Proteins 0.000 description 2
- 101150042711 adc2 gene Proteins 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Accelerator control method and device provided by the invention obtain the corresponding relationship between acquisition time and gas pedal pressure according to multiple collected accelerator pedal displacement and corresponding acquisition times in real time；When gas pedal pressure corresponding with newest acquisition time is greater than first pressure threshold value and is less than second pressure threshold value, count from zero at the first time；When gas pedal pressure corresponding with newest acquisition time is greater than third pressure threshold and when less than four pressure thresholds, counted from zero for the second time；When reaching the first preset time at the first time, it is closed first switch；When the second time reaching third preset time, it is closed second switch；When at least one in first switch and the second switch is in an off state, control air throttle is remained turned-off.In the quick misoperation accelerator pedal of driver, first switch and the second switch is understood at least one and is in an off state, and engine air throttle can remain off, and improves vehicle safety.
Description
Technical field
The present invention relates to technical field of vehicle safety, in particular to a kind of accelerator control method and device.
Background technique
It has progressed into the rapid development of the automotive industry with continuous improvement of people's living standards, automobile to 1,000
Average family absolutely.
Gas pedal and brake pedal are two indispensable devices on automobile, carry the weight of acceleration and braking
Want responsibility.For Hyundai Motor, accelerates and the mode of operation of brake is identical, be all by driver using under right threading
Corresponding pedal controls the acceleration or braking of automobile.
Inventor discovery in the prior art the prior art has at least the following problems:
Since brake pedal is identical with the mode of operation of gas pedal, much operates unskilled new hand driver and exist
Accidentally gas pedal can as brake pedal and firmly be stepped among flurried when encountering emergency case, so as to cause the hair of accident
Raw, vehicle safety is lower.
Summary of the invention
In view of this, the present invention provides a kind of accelerator control method and device, vehicle safety can be effectively improved.
Specifically, including technical solution below:
On the one hand, the present invention provides a kind of accelerator control method, comprising:
According to multiple collected accelerator pedal displacements and corresponding acquisition times in real time, obtain acquisition time and
Corresponding relationship between accelerator pedal displacement.
According to the corresponding relationship between acquisition time and accelerator pedal displacement, obtains acquisition time and gas pedal adds
Corresponding relationship between speed.
According to corresponding relationship, acquisition time and the accelerator pedal displacement between acquisition time and gas pedal acceleration
Between corresponding relationship, obtain the corresponding relationship between acquisition time and gas pedal pressure.
When gas pedal pressure corresponding with newest acquisition time is greater than first pressure threshold value and is less than second pressure
When threshold value, count from zero at the first time.
When gas pedal pressure corresponding with newest acquisition time is greater than third pressure threshold and less than the 4th pressure
When threshold value, counted from zero for the second time.
When reaching the first preset time at the first time, it is closed first switch and is disconnected after keeping the second preset time.
When the second time reaching third preset time, it is closed second switch and is disconnected after keeping the 4th preset time.
The state for judging first switch and the second switch disconnects shape when at least one in first switch and the second switch is in
When state, control air throttle is remained turned-off.
Selectively, according to the corresponding relationship between acquisition time and accelerator pedal displacement, obtain acquisition time and
Corresponding relationship between gas pedal acceleration, comprising:
One chosen in multiple acquisition times is used as acquisition time to be measured.
Obtain sampling time interval.
According to accelerator pedal displacement corresponding with acquisition time to be measured and acquisition time to be measured upper last acquisition time
The corresponding accelerator pedal displacement of point and sampling time interval, obtain corresponding with the last acquisition time of acquisition time to be measured
Gas pedal instantaneous velocity.
According to accelerator pedal displacement corresponding with acquisition time and next acquisition time pair under acquisition time to be measured
The accelerator pedal displacement and sampling time interval answered obtain oil corresponding with the next acquisition time of acquisition time to be measured
Door pedal instantaneous velocity.
According to gas pedal instantaneous velocity corresponding with last acquisition time and corresponding throttle of next acquisition time
Pedal instantaneous velocity and sampling time interval obtain gas pedal acceleration corresponding with acquisition time to be measured.
According to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained, acquisition time and oil are obtained
Corresponding relationship between door pedal acceleration.
Selectively, according to corresponding relationship, acquisition time and the oil between acquisition time and gas pedal acceleration
Corresponding relationship between door pedal displacement, obtains the corresponding relationship between acquisition time and gas pedal pressure, comprising:
Obtain the corresponding relationship between pre-stored accelerator pedal displacement and gas pedal resistance.
According to the corresponding relationship and accelerator pedal displacement and gas pedal between acquisition time and accelerator pedal displacement
Corresponding relationship between resistance obtains the corresponding relationship between acquisition time and gas pedal resistance.
According to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time and gas pedal are obtained
Corresponding relationship between total force.
According between acquisition time and gas pedal total force corresponding relationship and acquisition time and throttle step on
Corresponding relationship between plate resistance obtains the corresponding relationship between acquisition time and gas pedal pressure.
Selectively, method further include:
When gas pedal pressure corresponding with newest acquisition time is less than first pressure threshold value or is greater than second pressure
When threshold value, first time is reset.
When gas pedal pressure corresponding with newest acquisition time is less than third pressure threshold or is greater than the 4th pressure
When threshold value, the second time was reset.
Selectively, method further include:
When first switch and the second switch is in closed state, allow throttle opening according to real-time collected oil
Door pedal displacement is adjusted.
On the other hand, the present invention also provides a kind of accelerator control device, device includes:
It is displaced determining module, for according to multiple collected accelerator pedal displacement and corresponding acquisition times in real time
Point obtains the corresponding relationship between acquisition time and accelerator pedal displacement.
Acceleration determining module, for being adopted according to the corresponding relationship between acquisition time and accelerator pedal displacement
Collect the corresponding relationship between time point and gas pedal acceleration.
Pressure determining module, for according between acquisition time and gas pedal acceleration corresponding relationship, acquisition when
Between put and accelerator pedal displacement between corresponding relationship, obtain the corresponding relationship between acquisition time and gas pedal pressure.
First counting module, for being greater than first pressure threshold when gas pedal pressure corresponding with newest acquisition time
When being worth and being less than second pressure threshold value, count from zero at the first time.
Second counting module, for being greater than third pressure threshold when gas pedal pressure corresponding with newest acquisition time
Value and when less than four pressure thresholds, counted from zero for the second time.
First switch module, for when reaching the first preset time at the first time, being closed first switch and keeping second
Preset time.
Second switch module, for when the second time reaching third preset time, being closed second switch and keeping the 4th
Preset time.
Control module for judging the state of first switch and the second switch, and is worked as in first switch and the second switch extremely
Few one when being in an off state, control air throttle remains turned-off.
Selectively, acceleration determining module, comprising:
Submodule is chosen, is used as acquisition time to be measured for choosing one in multiple acquisition times.
Interval acquiring submodule, for obtaining sampling time interval.
First instantaneous velocity submodule, for basis and acquisition time to be measured corresponding accelerator pedal displacement and to be measured
Last acquisition time corresponding accelerator pedal displacement and sampling time interval on acquisition time, when obtaining with acquisition to be measured
Between the corresponding gas pedal instantaneous velocity of last acquisition time put.
Second instantaneous velocity submodule, for basis and acquisition time corresponding accelerator pedal displacement and acquisition to be measured
Next acquisition time corresponding accelerator pedal displacement and sampling time interval, obtain and acquisition time to be measured under time point
Corresponding gas pedal instantaneous velocity of next acquisition time.
To measuring acceleration submodule, for basis and corresponding gas pedal instantaneous velocity of last acquisition time and under
A acquisition time corresponding gas pedal instantaneous velocity and sampling time interval, obtain corresponding with acquisition time to be measured
Gas pedal acceleration.
Relationship submodule, for obtaining according to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained
Corresponding relationship between acquisition time and gas pedal acceleration.
Selectively, pressure determining module, comprising:
Resistance acquisition submodule, for obtaining the correspondence between pre-stored accelerator pedal displacement and gas pedal resistance
Relationship.
Drag relationship submodule, for according to the corresponding relationship between acquisition time and accelerator pedal displacement, and oil
Corresponding relationship between door pedal displacement and gas pedal resistance, obtains the correspondence between acquisition time and gas pedal resistance
Relationship.
Total force submodule, for obtaining according to the corresponding relationship between acquisition time and gas pedal acceleration
Corresponding relationship between acquisition time and gas pedal total force.
Pressure determines submodule, for according to the corresponding relationship between acquisition time and gas pedal total force, with
And the corresponding relationship between acquisition time and gas pedal resistance, obtain pair between acquisition time and gas pedal pressure
It should be related to.
Selectively, the first counting module is also used to be less than when gas pedal pressure corresponding with newest acquisition time
First pressure threshold value or be greater than second pressure threshold value when, will at the first time reset.
Second counting module is also used to be less than third pressure when gas pedal pressure corresponding with newest acquisition time
Threshold value or be greater than four pressure thresholds when, by the second time reset.
Selectively, control module is also used to:
When first switch and the second switch is in closed state, allow throttle opening according to real-time collected oil
Door pedal displacement is adjusted.
The beneficial effect of technical solution provided in an embodiment of the present invention includes at least:
Accelerator control method and device provided by the invention, according to multiple collected accelerator pedal displacements and right in real time
The acquisition time answered obtains the corresponding relationship between acquisition time and accelerator pedal displacement；According to acquisition time and oil
Corresponding relationship between door pedal displacement, obtains the corresponding relationship between acquisition time and gas pedal acceleration；According to adopting
Collect the corresponding pass between corresponding relationship, acquisition time and the accelerator pedal displacement between time point and gas pedal acceleration
System, obtains the corresponding relationship between acquisition time and gas pedal pressure；When throttle corresponding with newest acquisition time
When pedal pressing force is greater than first pressure threshold value and is less than second pressure threshold value, count from zero at the first time；When with it is newest
Acquisition time corresponding gas pedal pressure is greater than third pressure threshold and when less than four pressure threshold, counts from zero
Second time；When reaching the first preset time at the first time, it is closed first switch and keeps the second preset time；When second
Between when reaching third preset time, closure second switch simultaneously keeps the 4th preset time；Judge first switch and the second switch
State, when at least one in first switch and the second switch is in an off state, control air throttle is remained turned-off.By to driving
The operation that the person of sailing steps on pedal carries out two layers of judgement, in driver accidentally by gas pedal as brake pedal and when stepping on energetically,
First switch and the second switch is understood at least one and is in an off state, even if gas pedal is operated at this time, engine throttle
Door can also remain off, effectively prevent as driver's maloperation and caused by serious consequence, improve vehicle safety
Property.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Attached drawing 1 is the flow chart for the accelerator control method that the embodiment of the present invention one provides；
Attached drawing 2 is the flow chart of accelerator control method provided by Embodiment 2 of the present invention；
Attached drawing 3 is the structural block diagram of accelerator control device provided in an embodiment of the present invention；
Attached drawing 4 is the block diagram for the accelerator control device that the embodiment of the present invention three provides；
Attached drawing 5 is the block diagram of the acceleration determining module for the accelerator control device that the embodiment of the present invention three provides；
Attached drawing 6 is the block diagram of the pressure determining module for the accelerator control device that the embodiment of the present invention three provides.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.
Embodiment one
Present embodiments provide a kind of accelerator control method, as shown in Figure 1, include step S101, S102, S103, S104,
S105, S106, S107 and S108 below will be specifically introduced each step.
In step s101, it according to multiple collected accelerator pedal displacement and corresponding acquisition times in real time, obtains
To the corresponding relationship between acquisition time and accelerator pedal displacement.
In step s 102, according to the corresponding relationship between acquisition time and accelerator pedal displacement, acquisition time is obtained
Corresponding relationship between point and gas pedal acceleration.
In step s 103, according to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time
Corresponding relationship between accelerator pedal displacement obtains the corresponding relationship between acquisition time and gas pedal pressure.
In step S104, when gas pedal pressure corresponding with newest acquisition time be greater than first pressure threshold value and
When less than second pressure threshold value, count from zero at the first time.
In step s105, when gas pedal pressure corresponding with newest acquisition time be greater than third pressure threshold and
When less than four pressure thresholds, counted from zero for the second time.
In step s 106, it when reaching the first preset time at the first time, is closed first switch and keeps second to preset
It is disconnected after time.
In step s 107, it when the second time reaching third preset time, is closed second switch and keeps the 4th to preset
It is disconnected after time.
In step S108, judge the state of first switch and the second switch, when in first switch and the second switch at least
One when being in an off state, control air throttle remains turned-off.
In the present embodiment, according to the corresponding relationship between acquisition time and accelerator pedal displacement, acquisition time is obtained
Corresponding relationship between point and gas pedal acceleration, comprising:
One chosen in multiple acquisition times is used as acquisition time to be measured.
Obtain sampling time interval.
According to accelerator pedal displacement corresponding with acquisition time to be measured and acquisition time to be measured upper last acquisition time
The corresponding accelerator pedal displacement of point and sampling time interval, obtain corresponding with the last acquisition time of acquisition time to be measured
Gas pedal instantaneous velocity.
According to accelerator pedal displacement corresponding with acquisition time and next acquisition time pair under acquisition time to be measured
The accelerator pedal displacement and sampling time interval answered obtain oil corresponding with the next acquisition time of acquisition time to be measured
Door pedal instantaneous velocity.
According to gas pedal instantaneous velocity corresponding with last acquisition time and corresponding throttle of next acquisition time
Pedal instantaneous velocity and sampling time interval obtain gas pedal acceleration corresponding with acquisition time to be measured.
According to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained, acquisition time and oil are obtained
Corresponding relationship between door pedal acceleration.
In the present embodiment, according to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time
Corresponding relationship between accelerator pedal displacement obtains the corresponding relationship between acquisition time and gas pedal pressure, comprising:
Obtain the corresponding relationship between pre-stored accelerator pedal displacement and gas pedal resistance.
According to the corresponding relationship and accelerator pedal displacement and gas pedal between acquisition time and accelerator pedal displacement
Corresponding relationship between resistance obtains the corresponding relationship between acquisition time and gas pedal resistance.
According to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time and gas pedal are obtained
Corresponding relationship between total force.
According between acquisition time and gas pedal total force corresponding relationship and acquisition time and throttle step on
Corresponding relationship between plate resistance obtains the corresponding relationship between acquisition time and gas pedal pressure.
In the present embodiment, method further include:
When gas pedal pressure corresponding with newest acquisition time is less than first pressure threshold value or is greater than second pressure
When threshold value, first time is reset.
When gas pedal pressure corresponding with newest acquisition time is less than third pressure threshold or is greater than the 4th pressure
When threshold value, the second time was reset.
In the present embodiment, method further include:
When first switch and the second switch is in closed state, allow throttle opening according to real-time collected oil
Door pedal displacement is adjusted.
Accelerator control method provided by the invention according to multiple collected accelerator pedal displacements in real time and corresponding is adopted
Collect time point, obtains the corresponding relationship between acquisition time and accelerator pedal displacement；According to acquisition time and gas pedal
Corresponding relationship between displacement obtains the corresponding relationship between acquisition time and gas pedal acceleration；According to acquisition time
Corresponding relationship, acquisition time between point and gas pedal acceleration and the corresponding relationship between accelerator pedal displacement, obtain
Corresponding relationship between acquisition time and gas pedal pressure；When gas pedal pressure corresponding with newest acquisition time
When greater than first pressure threshold value and being less than second pressure threshold value, count from zero at the first time；When with newest acquisition time
The corresponding gas pedal pressure of point is greater than third pressure threshold and when less than four pressure threshold, when counting from zero second
Between；When reaching the first preset time at the first time, it is closed first switch and keeps the second preset time；Reach when the second time
When third preset time, it is closed second switch and keeps the 4th preset time；The state for judging first switch and the second switch, when
When at least one in first switch and the second switch is in an off state, control air throttle is remained turned-off.By being stepped on to driver
The operation of lower pedal carries out two layers of judgement, and in driver accidentally by gas pedal as brake pedal and when stepping on energetically, first is opened
It closes and second switch is understood at least one and is in an off state, even if gas pedal is operated at this time, engine air throttle also can
Remain off, effectively prevent as driver's maloperation and caused by serious consequence, improve vehicle safety.
Embodiment two
Present embodiments provide a kind of accelerator control method, as shown in Fig. 2, include step S201, S202, S203, S204,
S205, S206, S207, S208, S209a and S209b below will be specifically introduced each step.
Method provided in this embodiment can utilize electronic control unit ECU (the Electronic Control of vehicle
Unit it) executes, electronic control unit ECU (Electronic Control Unit) is mainly by microprocessor (CPU), memory
(ROM, RAM), input/output interface (GPIO), analog-digital converter (A/D) composition.
In step s 201, it according to multiple collected accelerator pedal displacement and corresponding acquisition times in real time, obtains
To the corresponding relationship between acquisition time and accelerator pedal displacement.
It is understood that modern vehicle mostly uses E-Gas, the principle of E-Gas is mainly adopted using sensor
Collect the accelerator pedal displacement of vehicle, the accelerator pedal displacement collected using electronic control unit ECU, and is worked as according to vehicle
Preceding actual condition correspondingly adjusts engine air throttle aperture, so that displacement and the engine air throttle of gas pedal
Aperture between set up connection, driver is converted to the operation of gas pedal to the acceleration tendency of vehicle.Using electronics oil
The advantage of door is that the displacement due to gas pedal can just be converted into control and start after being adjusted by electronic control unit ECU
The signal of machine throttle opening, therefore ESP (Electronic Stability Program)/ESC (Electronic
Stability controller) etc. body electronics systems stabilisation can directly by intervene ECU in from accelerator pedal displacement to
Conversion process between electronic throttle aperture carries out quickly throttle opening according to four-wheel slippery conditions to both be able to achieve
Accurate control, while will not influence the operation sense of driver again.Therefore accelerator control method provided in an embodiment of the present invention can be with
It directly continues to use for acquiring the sensor of accelerator pedal displacement in E-Gas, to reduce the implementation cost of entire scheme.
In the present embodiment, as shown in figure 3, the corresponding pin of gas pedal single-chip microcontroller component includes power vd D, one all the way
Road is grounded GND, two-way analog signal output AN1/AN2 and two ways of digital signals and exports DO1 and DO2, two-way analog signal AN1
It is used to embody accelerator pedal displacement with AN2, and the voltage of AN2 is twice of AN1, to realize signal redundancy, guarantees signal
Correct transmission.The corresponding pin of electronic control unit ECU include all the way power vd D, all the way be grounded GND, two-way analog signal
It inputs ADC1/ADC2 and two ways of digital signals inputs DI1 and DI2.
In E-Gas technology, in order to guarantee the responsiveness of gas pedal, interval will acquire one at regular intervals
Secondary accelerator pedal displacement, therefore multiple collected accelerator pedal displacement and corresponding acquisition times in real time can be obtained.
As a kind of alternative embodiment, if the gas pedal of vehicle assembly is the landing that shaft is fixed on vehicle floor position
Formula throttle reinforces ratio when accelerating using gas pedal control vehicle to guarantee accuracy when acquiring gas pedal aperture
Example sense, sensor can also measure the angle variable quantity of gas pedal.
In step S202, according to the corresponding relationship between acquisition time and accelerator pedal displacement, acquisition time is obtained
Corresponding relationship between point and gas pedal acceleration.
It is understood that due to the change for generally resulting in vehicle self-acceleration when stepping on the throttle pedal,
If measured using devices such as gyroscope or accelerometers to gas pedal acceleration, due to vehicle self-acceleration
Synergistic effect, the numerical value measured can have a large error, and realize that difficulty is also larger therefore provided in an embodiment of the present invention
Using the side for calculating gas pedal acceleration indirectly using accelerator pedal displacement and acquisition time in accelerator control method
Formula, reduces the implementation cost of scheme, while also improving the control precision of gas pedal.
In the present embodiment, according to the corresponding relationship between acquisition time and accelerator pedal displacement, acquisition time is obtained
Corresponding relationship between point and gas pedal acceleration, comprising:
One chosen in multiple acquisition times is used as acquisition time to be measured.Acquisition time to be measured is set as T0,
Acquisition time to be measured upper last acquisition time is set as T-2, acquisition time last acquisition time to be measured is set as T-1, to be measured
Acquisition time next acquisition time is set as T1, next acquisition time is set as T under acquisition time to be measured2, adjacent acquisition
Interval between time point is sampling time interval.
Obtain sampling time interval.Sampling time interval is set as t.
According to accelerator pedal displacement corresponding with acquisition time to be measured and acquisition time to be measured upper last acquisition time
The corresponding accelerator pedal displacement of point and sampling time interval, obtain corresponding with the last acquisition time of acquisition time to be measured
Gas pedal instantaneous velocity.
It is understood that since sampling time interval t is very small, in last acquisition time T-2It is adopted with to be measured
Collect time point T0Between, the movement that gas pedal is done can be approximated to be uniform variable motion, and the even speed change in certain a period of time
For movement, the instantaneous velocity of this section movement intermediate time is equal to the average speed of this section movement, therefore when by acquisition to be measured
Between point T0Locate corresponding accelerator pedal displacement and subtracts last acquisition time T-2The accelerator pedal displacement at place, then the knot that will be obtained
Fruit is divided by twice of sampling time interval t, so that it may obtain last acquisition time T-2With acquisition time T to be measured0Between
Gas pedal average speed, this gas pedal average speed i.e. last acquisition time T-1The gas pedal at place is instantaneous
Speed.
According to accelerator pedal displacement corresponding with acquisition time and next acquisition time pair under acquisition time to be measured
The accelerator pedal displacement and sampling time interval answered obtain oil corresponding with the next acquisition time of acquisition time to be measured
Door pedal instantaneous velocity.
Similarly, according to obtaining last acquisition time T-1The method of the gas pedal instantaneous velocity at place, can correspondingly obtain
To next acquisition time T1The gas pedal instantaneous velocity at place.
According to gas pedal instantaneous velocity corresponding with last acquisition time and corresponding throttle of next acquisition time
Pedal instantaneous velocity and sampling time interval obtain gas pedal acceleration corresponding with acquisition time to be measured.
It is understood that utilizing next acquisition time T1The gas pedal instantaneous velocity at place subtracts last acquisition time
Point T-1The gas pedal instantaneous velocity at place, then obtained result can be obtained divided by twice of sampling time interval t in this section
Gas pedal acceleration magnitude in time, due in last acquisition time T-1With next acquisition time T1Interior movement can
It is considered as uniform variable motion, therefore the acceleration magnitude in this period is exactly acquisition time T to be measured0The gas pedal at place accelerates
Spend size.
According to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained, acquisition time and oil are obtained
Corresponding relationship between door pedal acceleration.
In step S203, according to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time
Corresponding relationship between accelerator pedal displacement obtains the corresponding relationship between acquisition time and gas pedal pressure.
In the present embodiment, according to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time
Corresponding relationship between accelerator pedal displacement obtains the corresponding relationship between acquisition time and gas pedal pressure, comprising:
Obtain the corresponding relationship between pre-stored accelerator pedal displacement and gas pedal resistance.
Due to accelerator pedal structure characteristic, determines that gas pedal is stepping on different depth, that is, generate different size of position
When shifting, gas pedal resistance is different, and is specifically as follows: when accelerator pedal displacement is bigger, gas pedal resistance is bigger,
I.e. gas pedal resistance and accelerator pedal displacement are positively correlated, but specific functional relation can be non-linear relation, can pass through
Measure calibration in advance to determine the corresponding relationship between accelerator pedal displacement and gas pedal resistance.
According to the corresponding relationship and accelerator pedal displacement and gas pedal between acquisition time and accelerator pedal displacement
Corresponding relationship between resistance obtains the corresponding relationship between acquisition time and gas pedal resistance, to obtain in difference
Corresponding gas pedal resistance at acquisition time, i.e., drag size suffered by a certain moment gas pedal.
According to the corresponding relationship between acquisition time and gas pedal acceleration, acquisition time and gas pedal are obtained
Corresponding relationship between total force.
It is understood that according to Newton's second law it is found that suffered by the acceleration of gas pedal and gas pedal
Total force is directly proportional and the quality of gas pedal is inversely proportional, and the quality of gas pedal can be stored in advance, to utilize
Gas pedal accelerometer at a certain acquisition time calculate a certain acquisition time at gas pedal total force.
According between acquisition time and gas pedal total force corresponding relationship and acquisition time and throttle step on
Corresponding relationship between plate resistance obtains the corresponding relationship between acquisition time and gas pedal pressure.
It is understood that gas pedal will receive what driver's sole was applied when driver steps on the throttle pedal
The resistance of pressure and gas pedal itself, the total force of the two just make gas pedal be provided with certain acceleration, because
This can calculate gas pedal pressure by gas pedal resistance and gas pedal total force, due to gas pedal resistance and
Both gas pedal pressure is conllinear and contrary, and since gas pedal at this time is in the state for accelerating to depress, it is seen that at this time
Gas pedal pressure is greater than gas pedal resistance, therefore the circular of gas pedal pressure are as follows: gas pedal pressure etc.
Gas pedal total force is added in gas pedal resistance.
In step S204, when gas pedal pressure corresponding with newest acquisition time be greater than first pressure threshold value and
When less than second pressure threshold value, count from zero at the first time.
In step S205, when gas pedal pressure corresponding with newest acquisition time be greater than third pressure threshold and
When less than four pressure thresholds, counted from zero for the second time.
Wherein, newest acquisition time refers to the acquisition time nearest apart from current time.
In the present embodiment, the time technology of acquisition time record and first time and the second time can use
The timer conter of ECU microcontroller level of abstraction is realized.
In the present embodiment, first pressure threshold value, second pressure threshold value, third pressure threshold and the 4th pressure threshold institute
Corresponding pressure value is incremented by successively.
When driver normally step on the throttle pedal accelerate vehicle when, the throttle that driver applies gas pedal is stepped on
Plate pressure can undergo an ascending process, this process needs the regular hour, therefore present invention utilizes entire oil
Two sections during door pedal pressing force increase, i.e. first pressure threshold value to this section of second pressure threshold value and third pressure
Force threshold judges whether driver takes just to the 4th this section of pressure threshold, and by way of in section clocking internal
Normal acceleration operation, pedal of stepping on the throttle within the scope of admissible speed and strength.
In the present embodiment, method further include:
When gas pedal pressure corresponding with newest acquisition time is less than first pressure threshold value or is greater than second pressure
When threshold value, first time is reset.
When gas pedal pressure corresponding with newest acquisition time is less than third pressure threshold or is greater than the 4th pressure
When threshold value, the second time was reset.
Using above-mentioned clearing mode, can guarantee when gas pedal pressure, which is fallen in, carry out in the section of timing,
Time can count from zero.
In step S206, when reaching the first preset time at the first time, it is closed first switch and keeps second to preset
It is disconnected after time.
In step S207, when the second time reaching third preset time, it is closed second switch and keeps the 4th to preset
It is disconnected after time.
In the present embodiment, the specific location of first switch switch1 and second switch switch2 can be set in throttle
It, can also be in ECU in the single-chip microcontroller component of pedal (as shown in Figure 3).The state of first switch and the second switch can use
Two ways of digital signals indicates that first switch and the second switch is that low level is effective, and the corresponding digital signal of a certain switch sets 1,
Its in ECU corresponding DI1/2 mouthfuls be high level, then it represents that switch disconnect；The corresponding digital signal of a certain switch sets 0,
Corresponding DI1/2 mouthfuls is low level in ECU, then it represents that is closed the switch.
It is understood that being driven when driver drives the case where vehicle overtakes other vehicles or enters through street from ring road
The person of sailing may have the demand suddenly accelerated, and quickly deep accelerator pedal, and gas pedal speed is slower than in the case of accidentally stepping at this time,
But the used time stepped on completely also can be shorter, in order to adapt to this anxious acceleration situation, to guarantee that driver being capable of normal control vehicle
, the first preset time and third preset time can be set to a very short time, specifically can be 0.2-0.4S.
And driver is carrying out correctly accelerating operation, i.e., after being trampled using correct mode to gas pedal, by
There is no fear of the case where wrong accelerator pedal occur in muscle memory and conditioned reflex, in the short time, thus first switch and
Second switch can be maintained for a long time after closure, i.e. the second preset time and the 4th preset time can be set one longer
Time, be specifically as follows one hour.
In step S208, the state of first switch and the second switch is judged.
Specifically, by judging the corresponding digital signal value of first switch and the second switch or DI1/2 mouthfuls of voltages, sentence
The working condition of disconnected first switch and the second switch.
According to judgement after as a result, the embodiment of the present invention can generate two kinds of control modes arranged side by side, i.e. step S209a and step
Rapid S209b is below specifically introduced two kinds of control modes:
In step S209a, when first switch and the second switch is in closed state, allow throttle opening according to
Real-time collected accelerator pedal displacement is adjusted.
When first switch and the second switch is in closed state, illustrate all to accumulate with the second time at the first time at this time
Be more than corresponding preset value, illustrate driver step on the throttle pedal process time it is longer, be slowly to step on gas pedal
, gas pedal is not stepped on as brake pedal and energetically quickly suddenly, it in this case can be according to normal control
Accelerator pedal displacement, is converted to the aperture of air throttle by system strategy.
In step S209b, when at least one in first switch and the second switch is in an off state, air throttle is controlled
It remains turned-off.
When one of them of first switch and the second switch is in an off state, illustrate that driver may be among in a hurry
Gas pedal is stepped on as brake pedal, since in emergency brake, driver generally can be by brake pedal energetically and promptly
It steps on, therefore when driver fault misstepping on accelerator pedal, also can correspondingly step on gas pedal energetically and promptly, at this time first
Time and the second time, which at least have one, can not accumulate and be more than corresponding preset value, in first switch and the second switch at least
One is in an off state, and directly controls air throttle at this time and remains turned-off, i.e., no matter accelerator pedal displacement is how many, and vehicle is not
Have power supply.
The beneficial effect of technical solution provided in an embodiment of the present invention includes at least:
Accelerator control method provided by the invention according to multiple collected accelerator pedal displacements in real time and corresponding is adopted
Collect time point, obtains the corresponding relationship between acquisition time and accelerator pedal displacement；According to acquisition time and gas pedal
Corresponding relationship between displacement obtains the corresponding relationship between acquisition time and gas pedal acceleration；According to acquisition time
Corresponding relationship, acquisition time between point and gas pedal acceleration and the corresponding relationship between accelerator pedal displacement, obtain
Corresponding relationship between acquisition time and gas pedal pressure；When gas pedal pressure corresponding with newest acquisition time
When greater than first pressure threshold value and being less than second pressure threshold value, count from zero at the first time；When with newest acquisition time
The corresponding gas pedal pressure of point is greater than third pressure threshold and when less than four pressure threshold, when counting from zero second
Between；When reaching the first preset time at the first time, it is closed first switch and keeps the second preset time；Reach when the second time
When third preset time, it is closed second switch and keeps the 4th preset time；Judge the state of first switch and the second switch；When
When first switch and the second switch is in closed state, allow throttle opening according to real-time collected accelerator pedal displacement
It is adjusted；When at least one in first switch and the second switch is in an off state, control air throttle is remained turned-off.Pass through
Two layers of judgement is carried out to the operation that driver steps on pedal, accidentally steps on as brake pedal and energetically gas pedal in driver
When, first switch and the second switch is understood at least one and is in an off state, even if gas pedal is operated at this time, engine section
Valve can also remain off.When driver steps on the throttle pedal with normal speed and dynamics, at the first time with second when
Between can be accumulate to preset value so that first switch and the second switch is in closed state, vehicle throttle can basis at this time
Accelerator pedal displacement is adjusted.To effectively prevent due to driver while guarantee driver normal booster response
Misoperation accelerator pedal and caused by serious consequence, improve vehicle safety.
Embodiment three
A kind of accelerator control device is present embodiments provided, as shown in figure 4, true including displacement determining module 301, acceleration
Cover half block 302, pressure determining module 303, the first counting module 304, the second counting module 305, first switch module 306,
Two switch modules 307 and control module 308 will be made below specifically introducing.
Device provided in this embodiment may be provided at electronic control unit ECU (the Electronic Control of vehicle
Unit in), electronic control unit ECU (Electronic Control Unit) is mainly by microprocessor (CPU), memory
(ROM, RAM), input/output interface (GPIO), analog-digital converter (A/D) composition.
It is displaced determining module 301, when for according to multiple collected accelerator pedal displacements in real time and corresponding acquisition
Between point, obtain the corresponding relationship between acquisition time and accelerator pedal displacement.
It is understood that modern vehicle mostly uses E-Gas, the principle of E-Gas is mainly adopted using sensor
Collect the accelerator pedal displacement of vehicle, the accelerator pedal displacement collected using electronic control unit ECU, and is worked as according to vehicle
Preceding actual condition correspondingly adjusts engine air throttle aperture, so that displacement and the engine air throttle of gas pedal
Aperture between set up connection, driver is converted to the operation of gas pedal to the acceleration tendency of vehicle.Using electronics oil
The advantage of door is that the displacement due to gas pedal can just be converted into control and start after being adjusted by electronic control unit ECU
The signal of machine throttle opening, therefore ESP (Electronic Stability Program)/ESC (Electronic
Stability controller) etc. body electronics systems stabilisation can directly by intervene ECU in from accelerator pedal displacement to
Conversion process between electronic throttle aperture carries out quickly throttle opening according to four-wheel slippery conditions to both be able to achieve
Accurate control, while will not influence the operation sense of driver again.Therefore accelerator control method provided in an embodiment of the present invention can be with
It directly continues to use for acquiring the sensor of accelerator pedal displacement in E-Gas, to reduce the implementation cost of entire scheme.
In the present embodiment, as shown in figure 3, the corresponding pin of gas pedal single-chip microcontroller component includes power vd D, one all the way
Road is grounded GND, two-way analog signal output AN1/AN2 and two ways of digital signals and exports DO1 and DO2, two-way analog signal AN1
It is used to embody accelerator pedal displacement with AN2, and the voltage of AN2 is twice of AN1, to realize signal redundancy, guarantees signal
Correct transmission.The corresponding pin of electronic control unit ECU include all the way power vd D, all the way be grounded GND, two-way analog signal
It inputs ADC1/ADC2 and two ways of digital signals inputs DI1 and DI2.
In E-Gas technology, in order to guarantee the responsiveness of gas pedal, interval will acquire one at regular intervals
Secondary accelerator pedal displacement, therefore multiple collected accelerator pedal displacement and corresponding acquisition times in real time can be obtained.
As a kind of alternative embodiment, if the gas pedal of vehicle assembly is the landing that shaft is fixed on vehicle floor position
Formula throttle reinforces ratio when accelerating using gas pedal control vehicle to guarantee accuracy when acquiring gas pedal aperture
Example sense, sensor can also measure the angle variable quantity of gas pedal.
As a kind of alternative embodiment, the accelerator pedal displacement that sensor measurement goes out can carry out table using two-way analog signal
Show, this two-way analog signal wherein voltage is twice of another way voltage all the way, to realize signal redundancy, guarantee signal
Correct transmission.
Acceleration determining module 302, for obtaining according to the corresponding relationship between acquisition time and accelerator pedal displacement
Corresponding relationship between acquisition time and gas pedal acceleration.
It is understood that due to the change for generally resulting in vehicle self-acceleration when stepping on the throttle pedal,
If measured using devices such as gyroscope or accelerometers to gas pedal acceleration, due to vehicle self-acceleration
Synergistic effect, the numerical value measured can have a large error, and realize that difficulty is also larger therefore provided in an embodiment of the present invention
Using the side for calculating gas pedal acceleration indirectly using accelerator pedal displacement and acquisition time in accelerator control device
Formula, reduces the implementation cost of scheme, while also improving the control precision of gas pedal.
In the present embodiment, as shown in figure 5, acceleration determining module 302 includes:
Submodule 3021 is chosen, is used as acquisition time to be measured for choosing one in multiple acquisition times.It will be to
Survey acquisition time is set as T0, acquisition time to be measured, above last acquisition time was set as T-2, acquisition time to be measured was last to adopt
Collection time point is set as T-1, acquisition time next acquisition time to be measured is set as T1, under acquisition time to be measured when next acquisition
Between point be set as T2, the interval between adjacent acquisition time is sampling time interval.
Interval acquiring submodule 3022, for obtaining sampling time interval.Sampling time interval is set as t.
First instantaneous velocity submodule 3023, for basis and acquisition time to be measured corresponding accelerator pedal displacement and
Acquisition time to be measured goes up corresponding accelerator pedal displacement of last acquisition time and sampling time interval, obtains adopting with to be measured
Collect the corresponding gas pedal instantaneous velocity of last acquisition time at time point.
It is understood that since sampling time interval t is very small, in last acquisition time T-2It is adopted with to be measured
Collect time point T0Between, the movement that gas pedal is done can be approximated to be uniform variable motion, and the even speed change in certain a period of time
For movement, the instantaneous velocity of this section movement intermediate time is equal to the average speed of this section movement, therefore when by acquisition to be measured
Between point T0Locate corresponding accelerator pedal displacement and subtracts last acquisition time T-2The accelerator pedal displacement at place, then the knot that will be obtained
Fruit is divided by twice of sampling time interval t, so that it may obtain last acquisition time T-2With acquisition time T to be measured0Between
Gas pedal average speed, this gas pedal average speed i.e. last acquisition time T-1The gas pedal at place is instantaneous
Speed.
Second instantaneous velocity submodule 3024, for basis and acquisition time corresponding accelerator pedal displacement and to be measured
Next acquisition time corresponding accelerator pedal displacement and sampling time interval under acquisition time, when obtaining with acquisition to be measured
Between the corresponding gas pedal instantaneous velocity of next acquisition time put.
Similarly, the second instantaneous velocity submodule 3024, which can be taken, obtains last adopted with the first instantaneous velocity submodule 3023
Collect time point T-1The identical mode of gas pedal instantaneous velocity at place, obtains next acquisition time T1The gas pedal at place is instantaneous
Speed.
To measuring acceleration submodule 3025, for basis and corresponding gas pedal instantaneous velocity of last acquisition time,
Gas pedal instantaneous velocity corresponding with next acquisition time and sampling time interval obtain and acquisition time pair to be measured
The gas pedal acceleration answered.
It is understood that utilizing next acquisition time T1The gas pedal instantaneous velocity at place subtracts last acquisition time
Point T-1The gas pedal instantaneous velocity at place, then obtained result can be obtained divided by twice of sampling time interval t in this section
Gas pedal acceleration magnitude in time, since gas pedal is in last acquisition time T-1With next acquisition time T1It is interior
Movement can be considered uniform variable motion, therefore the gas pedal acceleration magnitude in this period is exactly acquisition time T to be measured0
The gas pedal acceleration magnitude at place.
Relationship submodule 3026 is obtained according to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained
Corresponding relationship between acquisition time and gas pedal acceleration.
Device further includes pressure determining module 303, for according to pair between acquisition time and gas pedal acceleration
Should be related to, the corresponding relationship between acquisition time and accelerator pedal displacement, obtain acquisition time and gas pedal pressure it
Between corresponding relationship.
In the present embodiment, as shown in fig. 6, pressure determining module 303 includes:
Resistance acquisition submodule 3031, for obtaining between pre-stored accelerator pedal displacement and gas pedal resistance
Corresponding relationship.
Due to accelerator pedal structure characteristic, determines that gas pedal is stepping on different depth, that is, generate different size of position
When shifting, corresponding gas pedal resistance is different, and is specifically as follows: when accelerator pedal displacement is bigger, gas pedal resistance
Bigger, i.e., gas pedal resistance and accelerator pedal displacement are positively correlated, but specific functional relation can be non-linear relation, can
To determine the corresponding relationship between accelerator pedal displacement and gas pedal resistance by measuring calibration in advance.
Drag relationship submodule 3032, for according to the corresponding relationship between acquisition time and accelerator pedal displacement, with
And the corresponding relationship between accelerator pedal displacement and gas pedal resistance, it obtains between acquisition time and gas pedal resistance
Corresponding relationship, to obtain the corresponding gas pedal resistance at different acquisition time point, i.e., suffered by a certain moment gas pedal
The drag size arrived.
Total force submodule 3033, for according to the corresponding relationship between acquisition time and gas pedal acceleration,
Obtain the corresponding relationship between acquisition time and gas pedal total force.
It is understood that according to Newton's second law it is found that suffered by the acceleration of gas pedal and gas pedal
Total force is directly proportional and the quality of gas pedal is inversely proportional, and the quality of gas pedal can be stored in advance, to utilize
Gas pedal accelerometer at a certain acquisition time calculate a certain acquisition time at gas pedal total force.
Pressure determines submodule 3034, for according to the corresponding pass between acquisition time and gas pedal total force
System and the corresponding relationship between acquisition time and gas pedal resistance, obtain acquisition time and gas pedal pressure it
Between corresponding relationship.
It is understood that gas pedal will receive what driver's sole was applied when driver steps on the throttle pedal
The resistance of pressure and gas pedal itself, the total force of the two just make gas pedal be provided with certain acceleration, because
This can calculate gas pedal pressure by gas pedal resistance and gas pedal total force, due to gas pedal resistance and
Both gas pedal pressure is conllinear and contrary, and since gas pedal at this time is in the state for accelerating to depress, it is seen that at this time
Gas pedal pressure is greater than gas pedal resistance, therefore the circular of gas pedal pressure are as follows: gas pedal pressure etc.
Gas pedal total force is added in gas pedal resistance.
Device further includes the first counting module 304, for when gas pedal pressure corresponding with newest acquisition time
When greater than first pressure threshold value and being less than second pressure threshold value, count from zero at the first time.
Device further includes the second counting module 305, for when gas pedal pressure corresponding with newest acquisition time
When greater than third pressure threshold and less than four pressure thresholds, counted from zero for the second time.
Wherein, newest acquisition time refers to the acquisition time nearest apart from current time.
In the present embodiment, acquisition time record and the time counting of first time and the second time can use
The timer conter of ECU microcontroller level of abstraction is realized.
In the present embodiment, first pressure threshold value, second pressure threshold value, third pressure threshold and the 4th pressure threshold institute
Corresponding pressure value is incremented by successively.
When driver normally step on the throttle pedal accelerate vehicle when, the throttle that driver applies gas pedal is stepped on
Plate pressure can undergo an ascending process, this process needs the regular hour, therefore present invention utilizes entire oil
Two sections during door pedal pressing force increase, i.e. first pressure threshold value to this section of second pressure threshold value and third pressure
Force threshold judges whether driver takes just to the 4th this section of pressure threshold, and by way of in section clocking internal
Normal acceleration operation, pedal of stepping on the throttle within the scope of admissible speed and strength.
As a kind of alternative embodiment, the first counting module 304 is also used to when oil corresponding with newest acquisition time
When door pedal pressing force is less than first pressure threshold value or is greater than second pressure threshold value, first time is reset.
Second counting module 305 is also used to be less than third pressure when gas pedal pressure corresponding with newest acquisition time
Force threshold or be greater than four pressure thresholds when, by the second time reset.
Using above-mentioned clearing mode, can guarantee when gas pedal pressure, which is fallen in, carry out in the section of timing,
Time can count from zero.
Device further includes first switch module 306, for when reaching the first preset time at the first time, closure first to be opened
It closes and keeps the second preset time.
Device further includes second switch module 307, for when the second time reaching third preset time, closure second to be opened
It closes and keeps the 4th preset time.
In the present embodiment, the specific location of first switch switch1 and second switch switch2 can be set in throttle
It, can also be in ECU in the single-chip microcontroller component of pedal (as shown in Figure 3).The state of first switch and the second switch can use
Two ways of digital signals indicates that first switch and the second switch is that low level is effective, and the corresponding digital signal of a certain switch sets 1,
Its in ECU corresponding DI1/2 mouthfuls be high level, then it represents that switch disconnect；The corresponding digital signal of a certain switch sets 0,
Corresponding DI1/2 mouthfuls is low level in ECU, then it represents that is closed the switch.
It is understood that being driven when driver drives the case where vehicle overtakes other vehicles or enters through street from ring road
The person of sailing may have the demand suddenly accelerated, and quickly deep accelerator pedal, and gas pedal speed is slower than in the case of accidentally stepping at this time,
But the used time stepped on completely also can be shorter, in order to adapt to this anxious acceleration situation, to guarantee that driver being capable of normal control vehicle
, the first preset time and third preset time can be set to a very short time, specifically can be 0.2-0.4S.
And driver is carrying out correctly accelerating operation, i.e., after being trampled using correct mode to gas pedal, by
There is no fear of the case where wrong accelerator pedal occur in muscle memory and conditioned reflex, in the short time, thus first switch and
Second switch can be maintained for a long time after closure, i.e. the second preset time and the 4th preset time can be set one longer
Time, be specifically as follows one hour.
Control module 308, for judging the state of first switch and the second switch.
Specifically, control module 308 can by judge the corresponding digital signal value of first switch and the second switch or
DI1/2 mouthfuls of voltages of person, to judge the working condition of first switch and the second switch.
Control module 308 is also used to when first switch and the second switch is in closed state, allows throttle opening
It is adjusted according to real-time collected accelerator pedal displacement.
When first switch and the second switch is in closed state, illustrate all to accumulate with the second time at the first time at this time
Be more than corresponding preset value, illustrate driver step on the throttle pedal process time it is longer, be slowly to step on gas pedal
, gas pedal is not stepped on as brake pedal and energetically quickly suddenly, it in this case can be according to normal control
Accelerator pedal displacement, is converted to the aperture of air throttle by system strategy.
Control module 308 is also used to when at least one in first switch and the second switch is in an off state, control section
Valve remains turned-off.
When one of them of first switch and the second switch is in an off state, illustrate that driver may be among in a hurry
Gas pedal is stepped on as brake pedal, since in emergency brake, driver generally can be by brake pedal energetically and promptly
It steps on, therefore when driver fault misstepping on accelerator pedal, also can correspondingly step on gas pedal energetically and promptly, at this time first
Time and the second time, which at least have one, can not accumulate and be more than corresponding preset value, in first switch and the second switch at least
One is in an off state, and directly controls air throttle at this time and remains turned-off, i.e., no matter accelerator pedal displacement is how many, and vehicle is not
Have power supply.
The beneficial effect of technical solution provided in an embodiment of the present invention includes at least:
Accelerator control device provided by the invention, displacement determining module 301 are used for according to multiple collected throttles in real time
Pedal displacement and corresponding acquisition time, obtain the corresponding relationship between acquisition time and accelerator pedal displacement；Accelerate
Determining module 302 is spent to be used for according to the corresponding relationship between acquisition time and accelerator pedal displacement, obtain acquisition time and
Corresponding relationship between gas pedal acceleration；, pressure determining module 303 is used to be accelerated according to acquisition time and gas pedal
Corresponding relationship, acquisition time between degree and the corresponding relationship between accelerator pedal displacement, obtain acquisition time and throttle
Corresponding relationship between pedal pressing force；First counting module 304 is used for when gas pedal corresponding with newest acquisition time
When pressure is greater than first pressure threshold value and is less than second pressure threshold value, count from zero at the first time；Second counting module 305
For being greater than third pressure threshold and less than the 4th pressure threshold when gas pedal pressure corresponding with newest acquisition time
When, counted from zero for the second time；First switch module 306 is used for when reaching the first preset time at the first time, closure
First switch simultaneously keeps the second preset time；Second switch module 307 is used for when the second time reaching third preset time, is closed
It closes second switch and keeps the 4th preset time；Control module 308 is used to judge the state of first switch and the second switch, when the
One switch and second switch be when being in closed state, allow throttle opening according to collected accelerator pedal displacement in real time into
Row adjustment；When at least one in first switch and the second switch is in an off state, control air throttle is remained turned-off.By right
The operation that driver steps on pedal carries out two layers of judgement, accidentally steps on as brake pedal and energetically gas pedal in driver
When, first switch and the second switch is understood at least one and is in an off state, even if gas pedal is operated at this time, engine section
Valve can also remain off.When driver steps on the throttle pedal with normal speed and dynamics, at the first time with second when
Between can be accumulate to preset value so that first switch and the second switch is in closed state, vehicle throttle can basis at this time
Accelerator pedal displacement is adjusted.To effectively prevent due to driver while guarantee driver normal booster response
Misoperation accelerator pedal and caused by serious consequence, improve vehicle safety.
The present embodiment and embodiment two are based on identical inventive concept, are that system corresponding with embodiment of the method two is implemented
Example, therefore it should be appreciated by those skilled in the art that being similarly adapted to the present embodiment to the explanation of embodiment two, some technologies are thin
Section is no longer described in detail in the present embodiment.
In this application, it should be understood that term " first ", " second " etc. are used for description purposes only, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic.
The above is only for the ease of it will be understood by those skilled in the art that technical solution of the present invention, not to limit this hair
It is bright.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention
Protection scope.
Claims (10)
1. accelerator control method, which is characterized in that the described method includes:
According to multiple collected accelerator pedal displacements and corresponding acquisition times in real time, obtain the acquisition time and
Corresponding relationship between the accelerator pedal displacement；
According to the corresponding relationship between the acquisition time and the accelerator pedal displacement, the acquisition time and oil are obtained
Corresponding relationship between door pedal acceleration；
According to the corresponding relationship between the acquisition time and the gas pedal acceleration, acquisition time and described
Corresponding relationship between accelerator pedal displacement obtains the corresponding relationship between the acquisition time and gas pedal pressure；
When the gas pedal pressure corresponding with newest acquisition time is greater than first pressure threshold value and less than second
When pressure threshold, count from zero at the first time；
When the gas pedal pressure corresponding with newest acquisition time is greater than third pressure threshold and less than the 4th
When pressure threshold, counted from zero for the second time；
When the first time reaching the first preset time, it is closed first switch and is disconnected after keeping the second preset time；
When second time reaching third preset time, it is closed second switch and is disconnected after keeping the 4th preset time；
The state for judging the first switch and the second switch, when at least one in the first switch and the second switch
A when being in an off state, control air throttle remains turned-off.
2. method according to claim 1, which is characterized in that described according to the acquisition time and the gas pedal position
Corresponding relationship between shifting obtains the corresponding relationship between the acquisition time and gas pedal acceleration, comprising:
One chosen in multiple acquisition times is used as acquisition time to be measured；
Obtain sampling time interval；
According to upper last with the acquisition time corresponding accelerator pedal displacement to be measured and the acquisition time to be measured
The acquisition time corresponding accelerator pedal displacement and the sampling time interval obtain and the acquisition time to be measured
Corresponding gas pedal instantaneous velocity of last acquisition time；
According to the accelerator pedal displacement corresponding with the acquisition time and next acquisition under the acquisition time to be measured
The time point corresponding accelerator pedal displacement and the sampling time interval, obtain adopting with the next of acquisition time to be measured
Collect time point corresponding gas pedal instantaneous velocity；
According to gas pedal instantaneous velocity corresponding with last acquisition time and corresponding gas pedal of next acquisition time
Instantaneous velocity and the sampling time interval obtain gas pedal acceleration corresponding with acquisition time to be measured；
According to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained, the acquisition time is obtained
Corresponding relationship between gas pedal acceleration.
3. method according to claim 1, which is characterized in that described to be added according to the acquisition time and the gas pedal
Corresponding relationship, the acquisition time between speed and the corresponding relationship between the accelerator pedal displacement obtain described adopt
Collect the corresponding relationship between time point and gas pedal pressure, comprising:
Obtain the corresponding relationship between the pre-stored accelerator pedal displacement and gas pedal resistance；
According between the acquisition time and the accelerator pedal displacement corresponding relationship and the accelerator pedal displacement and
Corresponding relationship between gas pedal resistance obtains the corresponding pass between the acquisition time and the gas pedal resistance
System；
According to the corresponding relationship between the acquisition time and the gas pedal acceleration, obtain the acquisition time and
Corresponding relationship between gas pedal total force；
According between the acquisition time and gas pedal total force corresponding relationship and the acquisition time and institute
The corresponding relationship between gas pedal resistance is stated, the corresponding relationship between the acquisition time and gas pedal pressure is obtained.
4. method according to claim 1, which is characterized in that the method also includes:
When the gas pedal pressure corresponding with newest acquisition time is less than first pressure threshold value or is greater than second
When pressure threshold, the first time is reset；
When the gas pedal pressure corresponding with newest acquisition time is less than third pressure threshold or is greater than the 4th
When pressure threshold, second time is reset.
5. method according to claim 1, which is characterized in that the method also includes:
When the first switch and the second switch are in closed state, allow throttle opening according to collecting in real time
The accelerator pedal displacement be adjusted.
6. accelerator control device, which is characterized in that described device includes:
It is displaced determining module, for obtaining according to multiple collected accelerator pedal displacement and corresponding acquisition times in real time
Corresponding relationship between the acquisition time and the accelerator pedal displacement；
Acceleration determining module, for obtaining according to the corresponding relationship between the acquisition time and the accelerator pedal displacement
Corresponding relationship between the acquisition time and gas pedal acceleration；
Pressure determining module, for according to the corresponding relationship between the acquisition time and the gas pedal acceleration, institute
The corresponding relationship between acquisition time and the accelerator pedal displacement is stated, the acquisition time and gas pedal pressure are obtained
Between corresponding relationship；
First counting module, for when and the corresponding gas pedal pressure of newest acquisition time be greater than first and press
Force threshold and be less than second pressure threshold value when, count from zero at the first time；
Second counting module, for when and the corresponding gas pedal pressure of newest acquisition time greater than third pressure
Force threshold and when less than four pressure thresholds, counted from zero for the second time；
First switch module, for when the first time reaching the first preset time, being closed first switch and keeping second
Preset time；
Second switch module, for when second time reaching third preset time, being closed second switch and keeping the 4th
Preset time；
Control module, for judging the state of the first switch and the second switch, and when the first switch and described
When at least one in second switch is in an off state, control air throttle is remained turned-off.
7. device according to claim 6, which is characterized in that the acceleration determining module, comprising:
Submodule is chosen, is used as acquisition time to be measured for choosing one in multiple acquisition times；
Interval acquiring submodule, for obtaining sampling time interval；
First instantaneous velocity submodule, for basis and the acquisition time to be measured corresponding accelerator pedal displacement and
The acquisition time to be measured upper last acquisition time corresponding accelerator pedal displacement and the sampling time interval,
Obtain gas pedal instantaneous velocity corresponding with the last acquisition time of the acquisition time to be measured；
Second instantaneous velocity submodule, for basis and the acquisition time corresponding accelerator pedal displacement and described
The next acquisition time corresponding accelerator pedal displacement and the sampling time interval, obtain under acquisition time to be measured
Gas pedal instantaneous velocity corresponding with the next acquisition time of acquisition time to be measured；
To measuring acceleration submodule, for basis and corresponding gas pedal instantaneous velocity of last acquisition time and next adopt
Collect time point corresponding gas pedal instantaneous velocity and the sampling time interval, obtains and the acquisition time pair to be measured
The gas pedal acceleration answered；
Relationship submodule, for obtaining according to gas pedal acceleration corresponding with multiple acquisition times to be measured is obtained
Corresponding relationship between the acquisition time and gas pedal acceleration.
8. device according to claim 6, which is characterized in that the pressure determining module, comprising:
Resistance acquisition submodule, for obtaining the correspondence between the pre-stored accelerator pedal displacement and gas pedal resistance
Relationship；
Drag relationship submodule, for according to the corresponding relationship between the acquisition time and the accelerator pedal displacement, with
And the corresponding relationship between the accelerator pedal displacement and gas pedal resistance, it obtains the acquisition time and the throttle is stepped on
Corresponding relationship between plate resistance；
Total force submodule, for according to the corresponding relationship between the acquisition time and the gas pedal acceleration,
Obtain the corresponding relationship between the acquisition time and gas pedal total force；
Pressure determines submodule, for according to the corresponding relationship between the acquisition time and gas pedal total force, with
And the corresponding relationship between the acquisition time and the gas pedal resistance, obtain the acquisition time and gas pedal
Corresponding relationship between pressure.
9. device according to claim 6, which is characterized in that
First counting module is also used to be less than when the gas pedal pressure corresponding with newest acquisition time
First pressure threshold value or be greater than second pressure threshold value when, the first time is reset；
Second counting module is also used to be less than when the gas pedal pressure corresponding with newest acquisition time
Third pressure threshold or be greater than four pressure thresholds when, will second time clearing.
10. device according to claim 6, which is characterized in that the control module is also used to:
When the first switch and the second switch are in closed state, allow throttle opening according to collecting in real time
The accelerator pedal displacement be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457180.0A CN109488465B (en) | 2018-11-30 | 2018-11-30 | Throttle control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457180.0A CN109488465B (en) | 2018-11-30 | 2018-11-30 | Throttle control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109488465A true CN109488465A (en) | 2019-03-19 |
| CN109488465B CN109488465B (en) | 2020-08-04 |
Family
ID=65699017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811457180.0A Active CN109488465B (en) | 2018-11-30 | 2018-11-30 | Throttle control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488465B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911304A (en) * | 2020-08-21 | 2020-11-10 | 安徽江淮汽车集团股份有限公司 | Electronic throttle control system and method |
| CN113335285A (en) * | 2021-06-29 | 2021-09-03 | 东风汽车集团股份有限公司 | Control method and system for preventing accelerator misoperation based on electric vehicle reversing scene |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820319A1 (en) * | 1987-06-25 | 1989-01-05 | Volkswagen Ag | Motor vehicle with an accelerator pedal for an engine and a brake pedal |
| JPH11278092A (en) * | 1998-03-26 | 1999-10-12 | Isuzu Motors Ltd | Automatic transmission vehicle runaway preventive device |
| US20070034440A1 (en) * | 2003-09-26 | 2007-02-15 | Daimlerchrysler Ag | Method and device for preventing unintended acceleration of a vehicle |
| CN105818685A (en) * | 2015-01-07 | 2016-08-03 | 杨秀丽 | Method, apparatus and controller for recognition and protection of mistaking accelerator for brake, and automobile |
| CN106976459A (en) * | 2017-04-07 | 2017-07-25 | 京东方科技集团股份有限公司 | The control device and method of auto control system in vehicles and its pre- preventing misoperation of accelerator |
| CN207634187U (en) * | 2017-12-22 | 2018-07-20 | 长安大学 | A kind of electronic security(ELSEC) accelerator device |
| CN108501719A (en) * | 2018-04-17 | 2018-09-07 | 天津天狮学院 | The control method and control device of automotive throttle are accidentally stepped in reply |
-
2018
- 2018-11-30 CN CN201811457180.0A patent/CN109488465B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820319A1 (en) * | 1987-06-25 | 1989-01-05 | Volkswagen Ag | Motor vehicle with an accelerator pedal for an engine and a brake pedal |
| JPH11278092A (en) * | 1998-03-26 | 1999-10-12 | Isuzu Motors Ltd | Automatic transmission vehicle runaway preventive device |
| US20070034440A1 (en) * | 2003-09-26 | 2007-02-15 | Daimlerchrysler Ag | Method and device for preventing unintended acceleration of a vehicle |
| CN105818685A (en) * | 2015-01-07 | 2016-08-03 | 杨秀丽 | Method, apparatus and controller for recognition and protection of mistaking accelerator for brake, and automobile |
| CN106976459A (en) * | 2017-04-07 | 2017-07-25 | 京东方科技集团股份有限公司 | The control device and method of auto control system in vehicles and its pre- preventing misoperation of accelerator |
| CN207634187U (en) * | 2017-12-22 | 2018-07-20 | 长安大学 | A kind of electronic security(ELSEC) accelerator device |
| CN108501719A (en) * | 2018-04-17 | 2018-09-07 | 天津天狮学院 | The control method and control device of automotive throttle are accidentally stepped in reply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911304A (en) * | 2020-08-21 | 2020-11-10 | 安徽江淮汽车集团股份有限公司 | Electronic throttle control system and method |
| CN111911304B (en) * | 2020-08-21 | 2022-01-04 | 安徽江淮汽车集团股份有限公司 | Electronic throttle control system and method |
| CN113335285A (en) * | 2021-06-29 | 2021-09-03 | 东风汽车集团股份有限公司 | Control method and system for preventing accelerator misoperation based on electric vehicle reversing scene |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109488465B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9358985B2 (en) | Method and device for controlling a drive unit of a vehicle | |
| KR950029766A (en) | Tilt measuring device for driving road and its method | |
| CN109488465A (en) | Accelerator control method and device | |
| US4352403A (en) | Vehicle speed control system | |
| US9818241B2 (en) | Malfunction diagnosing apparatus for vehicle | |
| DE3928045A1 (en) | CRUISE CONTROL DEVICE FOR A MOTOR VEHICLE | |
| EP2375041A2 (en) | System and method for controlling an injection time of a fuel injector | |
| KR20120062574A (en) | System for checking filter of air cleaner for automobiles | |
| DE102011000117A1 (en) | Control device of an internal combustion engine | |
| KR20080053288A (en) | Method and device for operating a drive unit | |
| US4683455A (en) | Shifting timing indicating system for a vehicle | |
| US7461546B2 (en) | Method and device for measuring and displaying an engine oil filling level in a vehicle | |
| WO2006089686A2 (en) | Motor vehicle control device | |
| US20030221479A1 (en) | Malfunction detecting method for a vehicle fuel level sensor | |
| US4171030A (en) | Acceleration warning device | |
| KR102633964B1 (en) | System and method for controlling operation of fuel gauge for vehicle | |
| US20040099044A1 (en) | Method and device for determining the offset value of a longitudinal acceleration sensor | |
| CN111810338A (en) | Improvements in rolling stop-start systems | |
| US4879655A (en) | Constant speed cruising control apparatus | |
| JP3592463B2 (en) | Electronic control unit for internal combustion engine | |
| CN202593368U (en) | Device capable of lighting stop lamp in advance to prevent rear-end collision of automobiles | |
| GB1594393A (en) | Methods and devices for controlling automatic stepped gears for motor vehicles | |
| GB2326681A (en) | Automatically determining the differential transmission ratio in a vehicle | |
| CN102050120A (en) | Vehicle fault control method | |
| JP4006927B2 (en) | Slope judgment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |