CN106838290B - Vehicle neutral gear accelerator control method and device - Google Patents
Vehicle neutral gear accelerator control method and device Download PDFInfo
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- CN106838290B CN106838290B CN201510881413.XA CN201510881413A CN106838290B CN 106838290 B CN106838290 B CN 106838290B CN 201510881413 A CN201510881413 A CN 201510881413A CN 106838290 B CN106838290 B CN 106838290B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
- F16H2059/183—Rate of change of accelerator position, i.e. pedal or throttle change gradient
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0234—Adapting the ratios to special vehicle conditions
- F16H2061/0239—Selecting ratios for preventing or cancelling wheel slip
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
A kind of vehicle neutral gear accelerator control method and device, the vehicle neutral gear accelerator control method include: the travel speed and gear information for obtaining vehicle；The travel speed reaches the first given threshold and the gear information when being neutral gear, acquires the location information and temporal information of gas pedal, obtains the change rate of the gas pedal；When the change rate reaches the second given threshold, the location information is transmitted to electronic control unit；The gear information of the vehicle is switched into drive shift.The vehicle neutral gear accelerator control method and device realize vehicle and are in automatic gear switch of neutral gear traveling when needing to accelerate, avoid the case where vehicle cannot obtain power when needing to accelerate, oil consumption is reduced, while improving the drive safety of vehicle neutral gear acceleration.
Description
Technical field
The present invention relates to field of vehicle safety more particularly to a kind of vehicle neutral gear accelerator control methods and device.
Background technique
With the development of automobile industry, there has also been apparent progress and development for field of automobile parts and components.In gearbox field,
There is manual transmission (Manual Transmission, MT), also referred to as manual, i.e., speed change could be changed by stirring gear lever with hand
Gear engagement position in case changes transmission ratio to achieve the purpose that speed change and generally includes 1 grade, 2 grades, 3 grades, 4 grades, reverse gear
And neutral gear；There are also automatic gear-box (Automatic Transmission, AT), cooperate tradition machinery using hydraulic torque converter
Gear-box realizes gear shift function, generally includes P grades (parkings), N grades (neutral gear), D grades (driving gear), S grades of (movement shelves, in this shelves
Position is at most raised to 2 grades of MT), L grades (1 grade that is equivalent to MT).AT and MT step type gearboxes, AT can be according to the speeds of speed
The increase and decrease for realizing gear automatically, can eliminate the pause and transition in rhythm or melody phenomenon that MT vehicle occurs due to shift.
In the prior art, mechanical automatic gearbox (Automated Manual Transmission, AMT) is a kind of
Mechanical-electrical-hydraulic integration automatic gear-box is on the basis of traditional hand gear type gearbox, by the clutch of manual transmission
Separation and selector fork etc. realize automatic manipulation by the component of human control, i.e., are realized by electronic or hydraulic power.AMT is combined
The advantages of AT and MT, AMT had not only had the advantages that common automatic gear-box fluid drive, but also remain former manual transmission gear
High-efficient, at low cost, structure is simple, manufacturing process the is simple advantage of transmission.AMT is carried out on the basis of manual transmission
Transformation, most former assembly components are remained, only changes the gear shift bar part of wherein manual operation system, produces inheritance
Good, the Meteorological of transformation is few, uses in most of vehicle.In the Some vehicles for being equipped with AMT, vehicle can be expert at
When sailing speed less than 80km/h, it is linked into neutral gear and slides, realize the control of automatic gear.
But be linked into after neutral gear slides a period of time in vehicle gear box, if vehicle needs to accelerate, need to gain D again
Shelves, engine speed improves after otherwise vehicle user is stepped on the gas but vehicle does not accelerate, and causes vehicle user sky to be stepped on the gas, vehicle
It cannot obtain power；The oil consumption of vehicle is caused to increase, meanwhile, it can also cause a hidden trouble to the safe driving of user.
Summary of the invention
Present invention solves the technical problem that being how to improve the drive safety of vehicle neutral gear acceleration.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of vehicle neutral gear accelerator control method, comprising:
Obtain the travel speed and gear information of vehicle；
The travel speed reaches the first given threshold and the gear information when being neutral gear, acquires the position of gas pedal
Information and temporal information obtain the change rate of the gas pedal；
When the change rate reaches the second given threshold, the location information is transmitted to electronic control unit；
The gear information of the vehicle is switched into drive shift.
Optionally, it is described the gear information of the vehicle is switched into drive shift after, by the institute of the gas pedal
It states location information and is transmitted to electronic control unit.
Optionally, the location information is the angle information of the gas pedal；The change rate is the angle information
With the ratio of the temporal information.
Optionally, when the change rate does not reach the second given threshold, prompt information is sent；The prompt information can be with
It is one or more of: sound and text.
Optionally, it is instructed according to the gearshift control of the electronic control unit and the gear information is switched into drive shift.
Optionally, when the change rate reaches the second given threshold, the corresponding voltage signal of the location information is transmitted
To electronic control unit.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of vehicle neutral gear accelerator control device, it is described
Vehicle neutral gear accelerator control device includes:
Information of vehicles acquiring unit obtains the travel speed and gear information of vehicle；
Throttle information acquisition unit, suitable for reaching the first given threshold and the gear information in the travel speed for sky
When shelves, the location information and temporal information of gas pedal are acquired, the change rate of the gas pedal is obtained；
Electronic control unit；
Transmission unit, suitable for the location information being transmitted to described when the change rate reaches the second given threshold
Electronic control unit；
Automatic gear-box control unit, suitable for the gear information of the vehicle is switched to drive shift.
Optionally, the vehicle neutral gear accelerator control device further include:
Prompt unit couples the throttle information acquisition unit, suitable for not reaching the second setting threshold in the change rate
When value, prompt information is sent；The prompt information can be one or more of: sound and text.
Optionally, the automatic gear-box control unit will be described according to the instruction of the gearshift control of the electronic control unit
Gear information switches to drive shift.
Optionally, the transmission unit is when the change rate reaches second given threshold, by the location information
Corresponding voltage signal is transmitted to electronic control unit.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention is reached first in the travel speed and is set by the travel speed and gear information of acquisition vehicle
When to determine threshold value and the gear information be neutral gear, acquire the location information of gas pedal and temporal information and obtain the throttle and step on
The location information is transmitted to electronic control unit simultaneously when the change rate reaches the second given threshold by the change rate of plate
The gear information of the vehicle is switched into drive shift；It realizes vehicle and is in automatic transmission of neutral gear traveling when needing to accelerate
Position switching, avoids the case where vehicle cannot obtain power when needing to accelerate, reduces oil consumption, while improving vehicle neutral gear
The drive safety of acceleration.
Detailed description of the invention
Fig. 1 is a kind of vehicle neutral gear accelerator control method flow chart of the embodiment of the present invention；
Fig. 2 is another kind vehicle neutral gear accelerator control method flow chart of the embodiment of the present invention；
Fig. 3 is a kind of vehicle neutral gear accelerator control device structural schematic diagram of the embodiment of the present invention；
Fig. 4 is a kind of throttle response curve schematic diagram of the embodiment of the present invention.
Specific embodiment
As described in the background art, it is linked into after neutral gear slides a period of time in vehicle gear box, if vehicle needs to accelerate,
It needs to gain D grades again, engine speed improves after otherwise vehicle user is stepped on the gas but vehicle does not accelerate, and leads to vehicle user
Sky is stepped on the gas, and vehicle cannot obtain power；The oil consumption of vehicle is caused to increase, meanwhile, the safe driving of user can also be caused hidden
Suffer from.
The embodiment of the present invention is reached first in the travel speed and is set by the travel speed and gear information of acquisition vehicle
When to determine threshold value and the gear information be neutral gear, acquire the location information of gas pedal and temporal information and obtain the throttle and step on
The location information is transmitted to electronic control unit simultaneously when the change rate reaches the second given threshold by the change rate of plate
The gear information of the vehicle is switched into drive shift；It realizes vehicle and is in automatic transmission of neutral gear traveling when needing to accelerate
Position switching, avoids the case where vehicle cannot obtain power when needing to accelerate, reduces oil consumption, while improving vehicle neutral gear
The drive safety of acceleration.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of vehicle neutral gear accelerator control method flow chart of the embodiment of the present invention.
Please refer to Fig. 1, the vehicle neutral gear accelerator control method includes: step S101, obtain vehicle travel speed and
Gear information.
In the present embodiment, vehicle neutral gear accelerator control method first has to judge the driving status of vehicle, needs to acquire vehicle
Gear information.Wherein, the gear information of vehicle is collected by gearbox.The gear information of vehicle includes N grades (empty
Shelves), D grades (driving gear), S grades, L grades (speed limit effect).Wherein, when vehicle is in N grades, vehicle will not stop working, in gearbox
Gear train idle running, is unable to output power, and otherwise speed can damage gearbox no more than 80km/h；Vehicle is in D grades
When, the gear train rotation in gearbox, is vehicle output power.In addition, vehicle neutral gear accelerator control method will judge vehicle
Driving status, it is also necessary to acquire the travel speed of vehicle.Wherein, Vehicle Speed is adopted by the wheel speed sensors of vehicle
Collect.
Step S102, the travel speed reaches the first given threshold and the gear information when being neutral gear, acquires throttle
The location information and temporal information of pedal, obtain the change rate of the gas pedal.
In the present embodiment, determine that the Vehicle Speed reaches the first given threshold and the gear information is neutral gear,
The location information and temporal information for acquiring gas pedal, can guarantee that vehicle is to be linked into neutral gear in the process of moving, gearbox exists
The operation of data acquisition is carried out when neutral gear.
In specific implementation, first given threshold is set as 5km/h, i.e., when Vehicle Speed is greater than 5km/h and vehicle
Gearbox when being linked into N grades, acquire the location information and temporal information of gas pedal.
It should be noted that the size of first given threshold can do the tune of adaptability according to actual application environment
It is whole.
In the present embodiment, the location information is the angle information of the gas pedal；The temporal information is vehicle use
Family is from accelerator pedal is started to the time for terminating accelerator pedal；The change rate is to believe the angle information and the time
The ratio of breath.
In specific implementation, in the driving process of vehicle, vehicle user is by accelerator pedal, to control engine charge
Amount, to control the revolving speed of engine；Gas pedal is passed to electronic control unit (Electronic Control Unit, ECU)
Pass speed control signal；Electronic control unit acquires the signals such as engine speed sensor, vehicle speed sensor simultaneously, and combines hair
The travel speed of motivation revolving speed and current vehicle travel speed control vehicle.The angle information of the gas pedal and the time
The ratio of information is small, shows that vehicle user is gently to step on the gas；The ratio of the angle information of the gas pedal and the temporal information
Value is big, shows that vehicle user is attached most importance to and steps on the gas, at this point, can determine whether that vehicle is the situation for needing to accelerate.
When the change rate reaches the second given threshold, it is single to be transmitted to electronic control by step S103 for the location information
Member.
In the present embodiment, the ratio of the angle information of the gas pedal and the temporal information, i.e., the described gas pedal
Change rate when reaching the second given threshold, the corresponding voltage signal of the location information is transmitted to electronic control unit.
In specific implementation, the second given threshold is 15 degrees seconds, i.e., described gas pedal angle changing in single second is greater than 15
When spending, the angle information of gas pedal is transmitted to electronic control unit, by electronic control unit according to the angle of gas pedal
The control of information progress Vehicle Speed.
It should be noted that the size of second given threshold can do the tune of adaptability according to actual application environment
It is whole.
In the present embodiment, when the change rate does not reach the second given threshold, prompt information is sent；The prompt information
Including sound, text.
In specific implementation, the gas pedal in single second angle changing be less than or equal to 15 degree when, the angle of gas pedal
Information will not be transmitted to electronic control unit, and vehicle neutral gear accelerator control method can send prompt information to vehicle user, remind
Gearbox is linked into D grades by vehicle user.
It is understood that the prompt information can be warning light, in gas pedal, angle changing is less than in single second
When equal to 15 degree, gearbox is linked into D grades by the bright prompting vehicle user of warning light；Onboard system text or language can also be passed through
The function of sound casting is realized, reminds vehicle user that gearbox is linked into D grades.
The gear information of the vehicle is switched to drive shift by step S104.
In the present embodiment, vehicle neutral gear accelerator control method is instructed according to the gearshift control of the electronic control unit by institute
It states gear information and switches to drive shift.
In specific implementation, electronic control unit exports gearshift control instruction to automatic gear-box control unit
(Transmission Control Unit, TCU) makes the gear information of gearbox switch to D grades, realizes fluid drive
Control.
In the present embodiment, the gear information of the vehicle is switched to drive shift by vehicle neutral gear accelerator control method
Afterwards, the location information of the gas pedal is transmitted to electronic control unit, carries out the control of Vehicle Speed.
The embodiment of the present invention realizes vehicle and is in automatic gear switch of neutral gear traveling when needing to accelerate, and avoids vehicle
The case where power cannot be obtained when needing to accelerate, oil consumption is reduced, while improving the drive safety of vehicle neutral gear acceleration.
Fig. 2 is another kind vehicle neutral gear accelerator control method flow chart of the embodiment of the present invention.
The vehicle neutral gear accelerator control method includes: step S201, judges whether travel speed is greater than 5km/h, if
It is then to enter step S202, otherwise continues step S201.
Step S202 judges whether gear information is neutral gear, if it is, entering step S203, otherwise continues step
S202。
Step S203, judges whether gas pedal change rate is greater than 15 degrees seconds, if it is, entering step S205, otherwise
Enter step S204.
Step S204 sends prompt information.
In the present embodiment, the gas pedal in single second angle changing be less than or equal to 15 degree when, the angle of gas pedal
Information will not be transmitted to electronic control unit, and vehicle neutral gear accelerator control method can send prompt information to vehicle user, remind
Gearbox is linked into D grades by vehicle user.
It is understood that the prompt information can be warning light, in gas pedal, angle changing is less than in single second
When equal to 15 degree, gearbox is linked into D grades by the bright prompting vehicle user of warning light；Onboard system text or language can also be passed through
The function of sound casting is realized, reminds vehicle user that gearbox is linked into D grades.
Step S205 sends accelerator pedal position information to electronic control unit.
In the present embodiment, the gas pedal is believed the angle of gas pedal when angle changing is greater than 15 degree in single second
Breath is transmitted to electronic control unit, carries out the control of Vehicle Speed according to the angle information of gas pedal by electronic control unit
System.
The gear information of vehicle is switched to drive shift by step S206.
Specific embodiment can refer to previous embodiment, and details are not described herein again.
Fig. 3 is a kind of vehicle neutral gear accelerator control device structural schematic diagram of the embodiment of the present invention.
Referring to figure 3., the vehicle neutral gear accelerator control device includes: engine electronic control unit 304.
Information of vehicles acquiring unit 301 obtains the travel speed and gear information of vehicle.
Throttle information acquisition unit 302, suitable for reaching the first given threshold and the gear information in the travel speed
When for neutral gear, the location information and temporal information of gas pedal are acquired, the change rate of the gas pedal is obtained.
In the present embodiment, determine that the Vehicle Speed reaches the first given threshold and the gear information is neutral gear,
The case where capable of guaranteeing that vehicle is to be linked into neutral gear in the process of moving, vehicle is avoided to be linked into neutral gear in parking.
In the present embodiment, throttle information acquisition unit 302 is hung in the gearbox that Vehicle Speed is greater than 5km/h and vehicle
When entering N grades, the location information and temporal information of gas pedal are acquired.The angle information of the gas pedal and the temporal information
Ratio it is small, show vehicle user be gently step on the gas；The angle information of the gas pedal and the ratio of the temporal information are big,
Show that vehicle user is attached most importance to step on the gas, at this point, can determine whether that vehicle is the situation for needing to accelerate.
It should be noted that the size of first given threshold can do the tune of adaptability according to actual application environment
It is whole.
Transmission unit 303, suitable for when the change rate reaches the second given threshold, the location information is transmitted to institute
State engine electronic control unit 304.
In the present embodiment, the transmission unit 303 believes the position when the change rate reaches the second given threshold
It ceases corresponding voltage signal and is transmitted to electronic control unit.
In specific implementation, the second given threshold is 15 degrees seconds, i.e., described gas pedal angle changing in single second is greater than 15
When spending, the angle information of gas pedal is transmitted to electronic control unit, by electronic control unit according to the angle of gas pedal
The control of information progress Vehicle Speed.
It should be noted that the size of second given threshold can do the tune of adaptability according to actual application environment
It is whole.
Automatic gear-box control unit 305, suitable for the gear information of the vehicle is switched to drive shift.
Prompt unit 306 couples the throttle information acquisition unit 302, suitable for not reaching second in the change rate
When given threshold, prompt information is sent；The prompt information includes sound, text.
In specific implementation, the gas pedal in single second angle changing be less than or equal to 15 degree when, the angle of gas pedal
Information will not be transmitted to engine electronic control unit 304, and vehicle neutral gear accelerator control method can send to vehicle user and prompt
Information reminds vehicle user that gearbox is linked into D grades.
It is understood that the prompt information can be warning light, in gas pedal, angle changing is less than in single second
When equal to 15 degree, gearbox is linked into D grades by the bright prompting vehicle user of warning light；Onboard system text or language can also be passed through
The function of sound casting is realized, reminds vehicle user that gearbox is linked into D grades.
In the present embodiment, the changing according to the engine electronic control unit 304 of automatic gear-box control unit 305
The gear information is switched to drive shift by shelves control instruction.
In the present embodiment, the vehicle neutral gear accelerator control device is arranged in gas pedal and engine electronic control unit
Between 304, the location information and temporal information and information of vehicles of the gas pedal of reception throttle information acquisition unit 302 are obtained
The travel speed and gear information of the vehicle of unit 301.
Specific embodiment can refer to previous embodiment, and details are not described herein again.
In the present embodiment, engine electronic control unit 304 combines gas pedal opening information and Vehicle Speed to believe
Breath, connects corresponding drive shift oil circuit.The gear set of the different stalls of automatic gear-box control unit 305 is in Motronic control maps control
It is combined under the control of unit processed, obtains corresponding transmission ratio, according to the gear of the variation switching vehicle of Vehicle Speed
Information realizes the fluid drive of vehicle.
Fig. 4 is a kind of throttle response curve schematic diagram of the embodiment of the present invention.
Together referring to Fig. 3, the vehicle neutral gear accelerator control device can also change accelerator pedal angle and corresponding output
The relationship of voltage, to adjust the response characteristic of throttle.
In the present embodiment, the air throttle (Throttle Valve) of vehicle is one for entering engine for controlling air
Controllable valve, air enters after air inlet pipe and gasoline is mixed into burning mixture, participates in work by combustion and provides for engine
Power.The location information of gas pedal is transmitted to engine electronic control unit 304, and then again by engine electronic control unit
The aperture of 304 control air throttles.When gas pedal lesser aperture control biggish throttle opening when, show gas pedal
High sensitivity, vehicle is easily controllable, and security performance is high.
Referring to figure 4., in the present embodiment, curve 1 indicates that former vehicle throttle response curve, curve 2 indicate to pass through vehicle neutral gear
Throttle response curve after accelerator control device change.Wherein, abscissa is gas pedal aperture, indicates what gas pedal was opened
Angle, ordinate are throttle opening, indicate the valve size that air throttle is opened, are all made of the side of percentage in the present embodiment
Formula indicates.
In the present embodiment, as shown by curve 1, former vehicle throttle responsive state are as follows: after gas pedal steps on 50%, air throttle
Aperture is about 72%；After gas pedal steps on 70%, 100% standard-sized sheet of air throttle.
In the present embodiment, as shown by curve 2, the throttle after sensitivity is adjusted by vehicle neutral gear accelerator control device and is responded
Curve state are as follows: after gas pedal steps on 50%, 100% standard-sized sheet of air throttle.
The throttle response of the embodiment of the present invention can step on after vehicle neutral gear accelerator control device adjusts sensitivity in throttle
Throttle valve reaches standard-sized sheet after plate steps on 50%, increases the response of air throttle, rings so as to adapt to vehicle user to throttle
The demand answered.
The embodiment of the present invention is reached first in the travel speed and is set by the travel speed and gear information of acquisition vehicle
When to determine threshold value and the gear information be neutral gear, acquire the location information of gas pedal and temporal information and obtain the throttle and step on
The location information is transmitted to electronic control unit simultaneously when the change rate reaches the second given threshold by the change rate of plate
The gear information of the vehicle is switched into drive shift；It realizes vehicle and is in automatic transmission of neutral gear traveling when needing to accelerate
Position switching, avoids the case where vehicle cannot obtain power when needing to accelerate, reduces oil consumption, while improving vehicle neutral gear
The drive safety of acceleration.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of vehicle neutral gear accelerator control method characterized by comprising
Obtain the travel speed and gear information of vehicle；
The travel speed reaches the first given threshold and the gear information when being neutral gear, acquires the location information of gas pedal
And temporal information, obtain the change rate of the gas pedal；
When the change rate reaches the second given threshold, the location information is transmitted to electronic control unit, by the vehicle
The gear information switch to drive shift；
When the change rate does not reach second given threshold, prompt information is sent, vehicle user is reminded to hang gearbox
Enter D grades；The prompt information is one or more of: sound and text.
2. vehicle neutral gear accelerator control method according to claim 1, which is characterized in that it is described will be described in the vehicle
After gear information switches to drive shift, the location information of the gas pedal is transmitted to electronic control unit.
3. vehicle neutral gear accelerator control method according to claim 1, which is characterized in that the location information is the oil
The angle information of door pedal；The change rate is the ratio of the angle information and the temporal information.
4. vehicle neutral gear accelerator control method according to claim 1, which is characterized in that according to the electronic control unit
Gearshift control instruct the gear information switched into drive shift.
5. vehicle neutral gear accelerator control method according to claim 1, which is characterized in that the change rate reaches described
When two given thresholds, the corresponding voltage signal of the location information is transmitted to the electronic control unit.
6. a kind of vehicle neutral gear accelerator control device characterized by comprising
Information of vehicles acquiring unit obtains the travel speed and gear information of vehicle；
Throttle information acquisition unit, suitable for reaching the first given threshold and the gear information in the travel speed for neutral gear
When, the location information and temporal information of gas pedal are acquired, the change rate of the gas pedal is obtained；
Electronic control unit；
Transmission unit, suitable for when the change rate reaches the second given threshold, the location information is transmitted to the electronics
Control unit；
Automatic gear-box control unit, suitable for when the change rate reaches the second given threshold, by the shelves of the vehicle
Position information switches to drive shift；
Prompt unit couples the throttle information acquisition unit, suitable for not reaching the second setting threshold in the change rate
When value, prompt information is sent, reminds vehicle user that gearbox is linked into D grades；The prompt information is one or more of: sound
Sound and text.
7. vehicle neutral gear accelerator control device according to claim 6, which is characterized in that
The automatic gear-box control unit instructs according to the gearshift control of the electronic control unit and cuts the gear information
Shift to drive shift.
8. vehicle neutral gear accelerator control device according to claim 6, which is characterized in that
The transmission unit believes the corresponding voltage of the location information when the change rate reaches second given threshold
Number it is transmitted to the electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881413.XA CN106838290B (en) | 2015-12-03 | 2015-12-03 | Vehicle neutral gear accelerator control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881413.XA CN106838290B (en) | 2015-12-03 | 2015-12-03 | Vehicle neutral gear accelerator control method and device |
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| CN107933546B (en) * | 2017-11-22 | 2019-07-23 | 武汉理工大学 | Pure electric vehicle city bus second gear shift of transmission method and system based on satellite positioning |
| CN109484158B (en) * | 2018-09-25 | 2024-01-26 | 法法汽车(中国)有限公司 | Motor cooling control method and device for vehicle and motor cooling system |
| CN113446392A (en) * | 2020-03-27 | 2021-09-28 | 广州汽车集团股份有限公司 | Shift-by-wire control method, shift-by-wire device and system |
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