CN107878196B - A kind of automobile active overrunning governor - Google Patents
A kind of automobile active overrunning governor Download PDFInfo
- Publication number
- CN107878196B CN107878196B CN201711108195.1A CN201711108195A CN107878196B CN 107878196 B CN107878196 B CN 107878196B CN 201711108195 A CN201711108195 A CN 201711108195A CN 107878196 B CN107878196 B CN 107878196B
- Authority
- CN
- China
- Prior art keywords
- conversion module
- module
- relay
- signal
- correction amount
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K2031/0091—Speed limiters or speed cutters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Safety Devices In Control Systems (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of automobile active overrunning governors, including AD conversion module, CAN interface module, computing module, D/A conversion module, relay, switching switch and voice cue module.AD conversion module acquires efp signal；CAN interface module reads speed and Maximum speed limit signal；Computing module calculation of throttle correction amount, and be added respectively with efp signal, obtain revised E-Gas signal；D/A conversion module exports revised E-Gas signal；The normally-closed contact of relay is connected with efp signal wire, and normally opened contact is connected with the output of D/A conversion module, and control coil is by switching switch control；The output of relay is the final output of automobile active overrunning governor；Voice cue module issues corresponding voice prompting according to overspeed situation.The speed limit of vehicle can be realized to the transformation of vehicle by reducing in the present invention, and is easy to Fault Isolation.
Description
Technical field
The present invention relates to a kind of automobile active overrunning governors, belong to a kind of automobile active safety device.
Background technique
Traffic law has stringent speed limit requirement to urban road, and driving over the speed limit is a kind of traffic violation, can be to certainly
The security of the lives and property of oneself and other traffic participants causes larger threat.Some researches show that in murderous traffic accident
In, about 30% is related with hypervelocity, comes second in all factors.
Existing automobile active speed-limiting proposal generally directly controls distributive value, oil pump, throttle opening even ABS system,
This, performance difficulty larger to the transformation of vehicle, and above-mentioned important equipment is directly controlled, once overrunning governor fails, will cause
Extremely serious consequence.
Summary of the invention
The present invention in order to overcome the shortcomings in the prior art place, a kind of automobile active overrunning governor is provided, to reduce
The speed limit of vehicle can be realized to the transformation of vehicle, and be easy to Fault Isolation.
To achieve the above object of the invention, the technical scheme adopted by the invention is as follows:
A kind of the characteristics of automobile active overrunning governor of the invention, is applied to equipped with efp and automatic change
In the automobile of fast case, the automobile active overrunning governor includes: AD conversion module, CAN interface module, computing module, DA turns
Change the mold block, relay, switching switch S and voice cue module；
There are two channel AD1 and AD2 for the AD conversion module, acquire two-way efp analog signal PPS1 respectively
With PPS2 and be converted to two ways of digital signals；
The CAN interface module is for reading vehicle velocity V and Maximum speed limit signal Vm and being supplied to the computing module；
Two-way throttle correction amount is calculated according to the vehicle velocity V and Maximum speed limit signal Vm in the computing module, and divides
It is not added with the two ways of digital signals of AD conversion module output, obtains the revised E-Gas digital signal of two-way；
There are two channel DA1 and DA2 for the D/A conversion module, and respectively by the revised E-Gas number of the two-way
Output is to the relay after signal is converted to the revised E-Gas analog signal of two-way；
The relay has two groups, and every group has a normally opened contact and a normally-closed contact, two groups of public controls
Coil；Two normally-closed contacts of the relay are connected with the signal wire of the two-way efp respectively, and two normally opened
Contact is connected with two channels DA1 and DA2 of the D/A conversion module respectively；The output PPS1 ' and PPS2 ' of the relay be
The final output of the automobile active overrunning governor；The control coil of the relay is connected with the switching switch S；
When the switching switch S is closed, the control coil of the relay is powered, described when the switching switch S is disconnected
The control coil of relay powers off；
The order of magnitude for the first via throttle correction amount that the voice cue module is calculated according to the computing module, hair
The absolute value of corresponding voice prompting out, the first via throttle correction amount is bigger, and the warning level of voice prompting is higher.
The characteristics of automobile active overrunning governor of the present invention lies also in: the computing module obtains as follows
The revised E-Gas digital signal of two-way:
Maximum speed limit Vm is subtracted vehicle velocity V and obtains difference by step 1；
Step 2, the difference convert to obtain first via throttle correction amount a, institute by the proportional controller with output violent change
The output violent change for stating proportional controller is [- n, 0], n > 0；
Step 3, the AD conversion module output two paths of digital signals exported divided by the AD conversion module first
Railway digital signal obtains ratio k；
Step 4, by the first via throttle correction amount a multiplied by ratio k, obtain the second road binders door correction amount b；
Step 5, the first via digital signal phase for exporting the first via throttle correction amount a with the AD conversion module
Add, obtains the revised E-Gas digital signal of the first via；
Step 6, the two paths of digital signals phase for exporting the second road binders door correction amount b with the AD conversion module
Add, obtains the revised E-Gas digital signal in the second tunnel.
Compared with the existing technology, the beneficial effects of the present invention are:
1, the two contacts of relay have property in parallel in controller of the present invention, hang over electricity so as to easily outer
The bypass of electronic throttle pedal is transformed without the important spare part to vehicle interior, can technically avoid the generation of hypervelocity,
All there is great help for reducing traffic accident and reducing the punishment that driver is subjected to by unconscious hypervelocity behavior,
And it is easy to implement.
2, controller, can easily be turned on or off, driver can be with by the switching switch in controller of the present invention
As the case may be, it independently chooses whether to open speed limiting function.
3, the normally-closed contact of the relay in controller of the present invention and efp are connected directly, and controller is closed
Afterwards, it will not have any impact to vehicle performance and driving experience.
4, in the control method of computing module of the present invention, using the proportional controller with output violent change, and output violent change is
[- n, 0], in this way when speed in Maximum speed limit hereinafter, driver when actively unclamping gas pedal to reduce speed, controller
It can react rapidly, the revised efp signal of controller output can reduce immediately with the intention of driver, thus
It allows the operator to rapidly control and the interference of uncontrolled device speed.
5, it is well known that the proportionate relationship between gas pedal two paths of signals is that Engine ECU judges gas pedal failure
Important evidence, the accelerator pedal signal equal proportion of two-way gas pedal correction amount and acquisition that controller of the present invention calculates protects
The fault mode of gas pedal is held, to not influence diagnosis of the Engine ECU to gas pedal failure.
6, verbal cue of the present invention is according to correction amount divided rank, can reflect that driver steps on the throttle the opening of pedal well
Degree is more than the amplitude of reasonable value.
Detailed description of the invention
Fig. 1 is system construction drawing of the invention.
Specific embodiment
With reference to the accompanying drawing, the following further describes the technical solution of the present invention.
In the present embodiment, a kind of automobile active overrunning governor is applied to equipped with efp and automatic change
In the automobile of fast case, as shown in Figure 1, automobile active overrunning governor includes: AD conversion module, CAN interface module, operation mould
Block, D/A conversion module, relay, switching switch S and voice cue module；
AD conversion module there are two channel AD1 and AD2, acquire respectively two-way efp analog signal PPS1 and
PPS2 is simultaneously converted to two ways of digital signals；
CAN interface module is connected with vehicle body CAN bus, for reading vehicle velocity V and Maximum speed limit signal from vehicle body CAN bus
Vm is simultaneously supplied to computing module；Wherein the acquisition modes of Vm it is general there are two types of, one is be output to vehicle body CAN by automatic navigator
Bus, another kind are to detect speed(-)limit sign by having the vehicle-mounted camera of speed(-)limit sign detection function, and identification Maximum speed limit is simultaneously
It is output to vehicle body CAN bus.
Two-way throttle correction amount is calculated according to vehicle velocity V and Maximum speed limit signal Vm in computing module, and turns respectively with AD
The two ways of digital signals for changing the mold block output is added, and obtains the revised E-Gas digital signal of two-way；It specifically, is by such as
Lower step carries out:
Maximum speed limit Vm is subtracted vehicle velocity V and obtains difference by step 1；
Step 2, difference convert to obtain first via throttle correction amount a, ratio tune by the proportional controller with output violent change
The output violent change for saving device is [- n, 0], n > 0, n=5 in the present embodiment；
Step 3, the two paths of digital signals of AD conversion module output are believed divided by the first railway digital that AD conversion module exports
Number obtain ratio k；
Step 4, by first via throttle correction amount a multiplied by ratio k, obtain the second road binders door correction amount b；It ensures that in this way
The two-way efp signal of amendment front and back keeps identical ratio, it is well known that the ratio of two-way efp
It is the important evidence for determining efp failure, so handles the failure mould for actually maintaining efp
The failure of formula, efp itself is not eliminated because increasing overrunning governor, does not influence Engine ECU to E-Gas
The diagnosis of pedal.
First via throttle correction amount a is added by step 5 with the first via digital signal that AD conversion module exports, and obtains
Revised E-Gas digital signal all the way；
Second road binders door correction amount b is added by step 6 with the two paths of digital signals that AD conversion module exports, and obtains
The revised E-Gas digital signal in two tunnels.
By above-mentioned method, work as Vm > V, i.e., when vehicle does not exceed the speed limit, since error is greater than zero, proportional controller is obtained
Control amount also greater than zero, and then by output violent change to 0, i.e., any amendment is not done to original signal, speed is controlled by driver completely
System.As Vm < V, i.e. overspeed of vehicle, since error is less than zero, the obtained control amount of proportional controller is produced again smaller than zero
A raw minus correction amount plays the purpose for reducing speed to reduce efp signal value.Meanwhile by
In the closed loop in proportional controller, the efp signal that driver gives becomes a disturbance, ratio tune in closed loop
Section closed-loop system can be very good to inhibit this disturbance, guarantee that actual vehicle speed V close to speed limit Vm, guarantees in the premise not exceeded the speed limit
Under, reach highest travel speed, to improve road efficiency.
There are two channel DA1 and DA2 for D/A conversion module, and respectively convert the revised E-Gas digital signal of two-way
It is output after the revised E-Gas analog signal of two-way to relay；
Relay has two groups, and every group has a normally opened contact and a normally-closed contact, two groups of public control coils；
Two normally-closed contacts of relay are connected with the signal wire of two-way efp respectively, and two normally opened contacts turn with DA respectively
Two channel DA1 of mold changing block are connected with DA2；The output PPS1 ' and PPS2 ' of relay are that automobile active overrunning governor is final
Output；The control coil of relay is connected with switching switch S；S is mounted near steering wheel or instrument board, in order to driver
Operation.
When switching switch S closure, the control coil of relay is powered, and relay contact connects the output of DA1 and DA2, will
It exports by modified efp signal to Engine ECU, achievees the purpose that restricted speed.When driver needs temporarily
When raising speed is overtaken other vehicles, S can be turned off the switch, when switching switch S disconnection, the control coil of relay is powered off, at this time relay
The contact of device is directly connected to the unmodified output of efp, directly controls speed by efp, entire to control
Device processed is isolated, and speed is controlled by driver completely.
The order of magnitude for the first via throttle correction amount that voice cue module is calculated according to computing module issues corresponding
The absolute value of voice prompting, first via throttle correction amount is bigger, and the warning level of voice prompting is higher.The absolute value of correction amount
Size, directly reflects the size that efp aperture that driver provides exceeds reasonable value, computing module as according to
According to, voice cue module is controlled, is classified and makes a sound warning, prompting driver's reduction efp aperture.
Claims (2)
- It is to be applied to equipped in efp and the automobile of automatic gear-box 1. a kind of automobile active overrunning governor, The automobile active overrunning governor includes: AD conversion module, CAN interface module, characterized in that the automobile active speed limit control Device processed further include: computing module, D/A conversion module, relay, switching switch S and voice cue module；The AD conversion module there are two channel AD1 and AD2, acquire respectively two-way efp analog signal PPS1 and PPS2 is simultaneously converted to two ways of digital signals；The CAN interface module is for reading vehicle velocity V and Maximum speed limit signal Vm and being supplied to the computing module；Two-way throttle correction amount is calculated according to the vehicle velocity V and Maximum speed limit signal Vm in the computing module, and respectively with The two ways of digital signals of the AD conversion module output is added, and obtains the revised E-Gas digital signal of two-way；There are two channel DA1 and DA2 for the D/A conversion module, and respectively by the revised E-Gas digital signal of the two-way Output is to the relay after being converted to the revised E-Gas analog signal of two-way；The relay has two groups, and every group has a normally opened contact and a normally-closed contact, two groups of public control coils； Two normally-closed contacts of the relay are connected with the signal wire of the two-way efp respectively, two normally opened contacts point It is not connected with two channels DA1 and DA2 of the D/A conversion module；The output PPS1 ' and PPS2 ' of the relay are the vapour Car owner moves the final output of overrunning governor；The control coil of the relay is connected with the switching switch S；When the switching switch S is closed, the control coil of the relay is powered, when the switching switch S is disconnected, the relay The control coil of device powers off；The order of magnitude for the first via throttle correction amount that the voice cue module is calculated according to the computing module issues phase The absolute value of the voice prompting answered, the first via throttle correction amount is bigger, and the warning level of voice prompting is higher.
- 2. automobile active overrunning governor according to claim 1, it is characterized in that: the computing module obtains as follows To the revised E-Gas digital signal of two-way:Maximum speed limit Vm is subtracted vehicle velocity V and obtains difference by step 1；Step 2, the difference convert to obtain first via throttle correction amount a, the ratio by the proportional controller with output violent change The output violent change of example adjuster is [- n, 0], n > 0；The first number that step 3, the two paths of digital signals of AD conversion module output are exported divided by the AD conversion module Word signal obtains ratio k；Step 4, by the first via throttle correction amount a multiplied by ratio k, obtain the second road binders door correction amount b；The first via throttle correction amount a is added by step 5 with the first via digital signal that the AD conversion module exports, and is obtained To the revised E-Gas digital signal of the first via；The second road binders door correction amount b is added by step 6 with the two paths of digital signals that the AD conversion module exports, and is obtained To the revised E-Gas digital signal in the second tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108195.1A CN107878196B (en) | 2017-11-08 | 2017-11-08 | A kind of automobile active overrunning governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108195.1A CN107878196B (en) | 2017-11-08 | 2017-11-08 | A kind of automobile active overrunning governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107878196A CN107878196A (en) | 2018-04-06 |
| CN107878196B true CN107878196B (en) | 2019-06-21 |
Family
ID=61780202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711108195.1A Active CN107878196B (en) | 2017-11-08 | 2017-11-08 | A kind of automobile active overrunning governor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107878196B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394709A (en) * | 2020-11-10 | 2021-02-23 | 易显智能科技有限责任公司 | System and method for processing accelerator pedal signal |
| CN113580931A (en) * | 2021-07-13 | 2021-11-02 | 郑州嘉晨电器有限公司 | Vehicle speed limiting system |
| CN115199414A (en) * | 2022-08-09 | 2022-10-18 | 东风越野车有限公司 | Accelerator conversion device and accelerator conversion control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19648559B4 (en) * | 1996-11-23 | 2009-01-29 | Wabco Gmbh | Method for controlling the speed of a vehicle in a downhill |
| CN201881971U (en) * | 2010-11-04 | 2011-06-29 | 浙江吉利汽车研究院有限公司 | Automobile speed limiting alarm device based on CAN (controller area network) transmission |
| CN102556058A (en) * | 2010-12-31 | 2012-07-11 | 上海汽车集团股份有限公司 | Safety assistant control system for automobile |
| CN102529852B (en) * | 2012-02-03 | 2014-11-19 | 三一汽车制造有限公司 | Vehicle and vehicle speed signal processing system |
| CN204712880U (en) * | 2015-06-17 | 2015-10-21 | 安庆师范学院 | A kind of overrunning governor for automobile |
-
2017
- 2017-11-08 CN CN201711108195.1A patent/CN107878196B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107878196A (en) | 2018-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107878196B (en) | A kind of automobile active overrunning governor | |
| CN103818379B (en) | The constant speed cruising method and device of electric automobile | |
| CN106347260B (en) | A kind of vehicle control system and its control method based on speech recognition | |
| CN104670235B (en) | Implementing method for front vehicle following | |
| EP2141041A1 (en) | Electric drive system and hybrid drive system | |
| US10974584B2 (en) | Device and method for controlling hybrid system | |
| CN102815301A (en) | Method and system for cruise control for pure electric vehicle | |
| DE102016112839A1 (en) | Vehicle control device | |
| US10843699B2 (en) | Vehicle control device | |
| CN109478292A (en) | Vehicle device and vehicle system | |
| CN104290805A (en) | Vehicle steering device | |
| CN106671776B (en) | Vehicle Speed control system and method based on driver's operation | |
| CN106347125A (en) | Method and system for filtering signal of opening degree of accelerator pedal | |
| CN104442816A (en) | Cruise control system controller and control method thereof | |
| CN110395117A (en) | Inhibit the Brake energy recovery control method of electric motor coach drive system vibration | |
| CN106515707A (en) | Intelligent optional constant speed safety reversing device | |
| CN202451289U (en) | Electronic throttle control device for auxiliary driving in traffic jam | |
| CN202448980U (en) | Automatic-tracking driving system for vehicle | |
| CN106064615A (en) | The control device of motor vehicle driven by mixed power | |
| CN206186890U (en) | Car self -adaptation cruise control system's pronunciation and keep away and hit auxiliary device | |
| CN202593368U (en) | Device capable of lighting stop lamp in advance to prevent rear-end collision of automobiles | |
| CN109209653A (en) | It is a kind of to realize that CAN data are converted into the gas pedal control method of analog data based on gateway and D/A module | |
| CN207328149U (en) | A kind of vehicle speed-limiting control system | |
| JP2005196326A (en) | Travel limit signal transmission device and travel limit device | |
| CN2780553Y (en) | Infrared ray induction control brake lamp device installed on automobile accelerator pedal |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Ruhai Inventor after: Yuan Sheng Inventor before: Liu Yue Inventor before: Yuan Sheng Inventor before: Jiang Ruhai Inventor before: Huang Rulin |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191202 Address after: Room F105, R & D building, Hefei Institute of technology and innovation, Chinese Academy of Sciences, No. 2666, Xiyou Road, hi tech Zone, Hefei, Anhui Patentee after: Hefei Zhongke Zhichi Technology Co., Ltd. Address before: 230088, B, innovation center, 860 Wangjiang West Road, Anhui, Hefei Patentee before: HEFEI TECHNOLOGY INNOVATION ENGINEERING INSTITUTE OF CAS |
|
| TR01 | Transfer of patent right |