CN109664762A - A kind of vehicle speed-limiting control system and control method - Google Patents
A kind of vehicle speed-limiting control system and control method Download PDFInfo
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- CN109664762A CN109664762A CN201710965687.6A CN201710965687A CN109664762A CN 109664762 A CN109664762 A CN 109664762A CN 201710965687 A CN201710965687 A CN 201710965687A CN 109664762 A CN109664762 A CN 109664762A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000011897 real-time detection Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 17
- 238000012937 correction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
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- 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
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/10—Vehicle control parameters
- B60L2240/12—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of vehicle speed-limiting control system and control method, control method are as follows: judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into speed limit mode；Under speed limit mode, the current driving speed of real-time detection vehicle, and whether within the set range to judge the difference between vehicle current driving speed and the speed limit value；If the difference between vehicle current driving speed and speed limit value is within the set range, drop driving torque processing is carried out to vehicle.Technical solution provided by the present invention need to only send speed limit setting signal to vehicle, and vehicle can carry out speed limit to vehicle using current travel speed as speed limit value, and not only simple to operate but also at low cost, control logic is simple.
Description
Technical field
The invention belongs to vehicle driving control technology fields, and in particular to a kind of vehicle speed-limiting control system and controlling party
Method.
Background technique
With the development of science and technology, automobile dynamic system performance has obtained development at full speed, while Travel vehicle on road
Average speed also accelerate therewith.However, accident caused by automobile is also increasing while science and technology brings us and facilitates at a high speed
It is more, wherein the traffic accident caused by furious driving has accounted for the quite high ratio of accident total amount.It therefore, is guarantee automobile
Safety traffic, needs to limit the travel speed of vehicle.
The travel speed of vehicle is limited, refers to the speed limit value for setting vehicle first, when the travel speed of vehicle is big
When speed limit value, entire car controller will be sounded an alarm, while control the speed adjusting device of vehicle, make the travel speed of vehicle
No more than speed limit value.
When setting the speed limit value of vehicle, currently used is to be manually entered speed limit value, i.e., driver is according to driving experience
Or the prompt mark of section speed limit locating for vehicle, it is manually entered speed limit value at the interface of setting speed limit value, or such as Publication No.
A kind of overspeed alarm device and its method with speed signalling interface of vehicle disclosed in the patent of CN1818984A, using pressing
Speed limit value is arranged in key or button step by step；This method operation is more troublesome, and the speed limit value being arranged may be with actual demand
Speed limit value between there are larger gaps.
Summary of the invention
The present invention provides a kind of vehicle speed-limiting control system and control method, for solving in the prior art in setting vehicle
Speed limit value when problem troublesome in poeration.
To achieve the above object, present invention provide the technical scheme that
A kind of limiting vehicle speed control method, includes the following steps:
Judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into
Enter speed limit mode；
Under speed limit mode, the current driving speed of real-time detection vehicle, and judge vehicle current driving speed with it is described
Within the set range whether the difference between speed limit value；If the difference between vehicle current driving speed and speed limit value is being set
In range, drop driving torque processing is carried out to vehicle.
Technical solution provided by the present invention only need to send speed limit setting signal to vehicle, and vehicle can be by current row
Speed is sailed as speed limit value, speed limit is carried out to vehicle, not only simple to operate but also at low cost, control logic is simple.
Further, if difference between vehicle current driving speed and speed limit value not within the set range, and vehicle
Current driving speed be greater than speed limit value, then the driving torque of vehicle is reduced to 0.
Further, the setting range refers to that vehicle current driving speed and the absolute value of the difference of speed limit value are not more than
2km/h。
Further, in the setting range, if the difference between the speed limit value and vehicle current driving speed is
A, the current driving torque of vehicle are F0, then when carrying out drop driving torque processing to vehicle, the driving torque of vehicle is F0* (a+
2)/4, wherein the unit of a is km/h.
Further, in vehicle travel process, the driving torque of vehicle is according to the current rotating speed and acceleration of vehicular electric machine
Pedal opening determines.
Further, the relationship between the driving torque of vehicle and vehicular electric machine revolving speed and accelerator pedal aperture is to try
It tests under operating condition, is passed through according to vehicle configuration, motor model and driving cycles demand obtained by calibrating.
System schema 1: a kind of vehicle speed-limiting control system, including processor, processor is connected with to be set for issuing speed limit
Determine the speed limit setting device of signal, and the speed detector for detecting Vehicle Speed；
The processor is used for:
Judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into
Enter speed limit mode；
Under speed limit mode, the current driving speed of real-time detection vehicle, and judge vehicle current driving speed with it is described
Within the set range whether the difference between speed limit value；If the difference between vehicle current driving speed and speed limit value is being set
In range, drop driving torque processing is carried out to vehicle.
System schema 2: on the basis of system schema 1, if the difference between vehicle current driving speed and speed limit value
Not within the set range and the current driving speed of vehicle be greater than speed limit value, then the driving torque of vehicle is reduced to 0.
System schema 3: on the basis of system schema 1, the setting range refers to vehicle current driving speed and speed limit
The absolute value of the difference of value is not more than 2km/h.
System schema 4: on the basis of system schema 3, in the setting range, if the speed limit value and vehicle are current
Difference between travel speed is a, and the current driving torque of vehicle is F0, then the vehicle when carrying out drop driving torque processing to vehicle
Driving torque be F0* (a+2)/4, wherein the unit of a is km/h.
System schema 5: on the basis of system schema 1, in vehicle travel process, the driving torque of vehicle is according to vehicle
The current rotating speed and accelerator pedal aperture of motor determine.
System schema 6: on the basis of system schema 5, the driving torque and vehicular electric machine revolving speed and accelerator pedal of vehicle
Relationship between aperture is obtained according to vehicle configuration, motor model and driving cycles demand by calibration under operating condition of test
's.
System schema 7: on the basis of system schema 1, the speed detector is communication device, is used for communication connection
The instrument of vehicle reads the current travel speed of vehicle from the instrument of vehicle.
System schema 8: on the basis of system schema 1, the processor is also connected with communication device, is used for communication connection
The electric machine controller of vehicle.
Detailed description of the invention
Fig. 1 is the structure principle chart of limiting vehicle speed setting control system in system embodiment；
Fig. 2 is control logic figure of the vehicle under speed limit mode in system embodiment.
Specific embodiment
The present invention provides a kind of vehicle speed-limiting control system and control method, for solving in the prior art in setting vehicle
Speed limit value when problem troublesome in poeration.
To achieve the above object, present invention provide the technical scheme that
A kind of limiting vehicle speed control method, includes the following steps:
Judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into
Enter speed limit mode；
Under speed limit mode, the current driving speed of real-time detection vehicle, and judge vehicle current driving speed with it is described
Within the set range whether the difference between speed limit value；If the difference between vehicle current driving speed and speed limit value is being set
In range, drop driving torque processing is carried out to vehicle.
Technical solution of the present invention is described further With reference to embodiment.
System embodiment:
The present embodiment provides a kind of limiting vehicle speed setting control system, such as Fig. 1, including processor are connected on processor
First communication device, the second communication device and speed limit configuration switch.The instrument of first communication device communication connection vehicle, from vehicle
The current driving speed of instrument reading vehicle；When the movement of speed limit configuration switch, processor can acquire the dynamic of speed limit configuration switch
Make signal, which is speed limit setting signal.
The electric machine controller of second communication device communication connection vehicle, after processor receives speed limit setting signal,
Processor passes through the vehicle current driving speed that obtains from vehicular meter of the first communication device, and pass through the second communication device to
Electric machine controller sends control instruction, controls the travel speed of vehicle, the specific steps are as follows:
When driver operates speed limit configuration switch, processor receives speed limit setting signal, and processor is logical by first
The current driving speed Va that device reads vehicle from the instrument of vehicle is interrogated, as the speed limit value Va of vehicle, while controlling vehicle
Enter speed limit mode；
For vehicle under speed limit mode, processor reads the current of vehicle from the instrument of vehicle by the first communication device in real time
Whether within the set range travel speed Vb judges difference between the current driving speed Vb of vehicle and speed limit value, if,
Drop driving torque value processing then is carried out to vehicle；If it was not then according to the current driving speed Vb of vehicle and speed limit value Va it
Between relationship the driving torque value of vehicle is corrected in real time.Setting range in the present embodiment is vehicle current driving speed and limit
The absolute value of the difference of fast value is not more than 2km/h, and specific control mode is as shown in Figure 2:
If the difference between the speed limit value Va and vehicle current driving speed Vb is greater than 2km/h, to vehicle traction
The correction factor of torque value timing is 1；
If the difference between the speed limit value Va and vehicle current driving speed Vb is less than -2km/h, to vehicle traction
Correction factor when torque value is corrected is 0；
If the difference between the speed limit value Va and vehicle current driving speed Vb is greater than -2km/h and is less than 2km/h,
Correction factor when then correcting to vehicle traction torque value is (Va-Vb+2)/4；
For example the speed limit value under speed limit mode is 80km/h, according to above-mentioned speed limit mode, the torque of vehicle is from 78km/
H, which starts to be reduced to when speed is 82km/h, is just reduced to 0, that is to say, that speed can be a certain between this 78km/h to 82km/h
The corresponding torque of a vehicle speed value V0, can reach required torque when vehicle drives at a constant speed, which, which is only practical institute, to reach
The max. speed arrived；
Correction factor is for correcting corresponding torque under current vehicle speed, such as speed limit 80km/h, when speed 79km/h pair
The torque answered is 3/4 that torque is corresponded to when speed is 79km/h under non-throttling mode.
Revised torque F=K*F0, wherein K is correction factor, and F0 is the current driving torque value of vehicle；Vehicle is current
Driving torque value F0 according to the current rotating speed and accelerator card aperture of vehicular electric machine determine；First under operating condition of test, according to vehicle
Configuration, motor model and driving cycles demand work as forward by vehicle traction torque value obtained by calibrating and vehicular electric machine
Relationship between speed, accelerator card aperture, then according to the current rotating speed of actually measured vehicular electric machine and accelerator card aperture, and
Relationship between the current rotating speed of the vehicle traction torque value calibrated and vehicular electric machine, accelerator card aperture, it is current to obtain vehicle
Driving torque value F0.
In the present embodiment, setting range is that vehicle current driving speed and the absolute value of the difference of speed limit value are not more than 2km/h；
As other embodiments, setting range can be set according to actual demand.In general, it can be set according to speed to adjust
Determine range, the torque under low speed segment, maximum accelerator pedal aperture is larger, and adjustable range should suitably widen, and guarantee torque drop
Compare steadily, driving experience is prevented to be mutated；Torque under high regime, maximum accelerator pedal aperture is smaller, and adjustable range can contract
It is small, driving experience is influenced little.
In the present embodiment, speed detector is the first communication device, and the current driving of vehicle is read from vehicular meter
Speed；As other embodiments, the travel speed of velocity sensor real-time detection vehicle can be used.
In the present embodiment, speed limit setting signal is sent by speed-limiting switch；As other embodiments, other can be used
Mode issues restricting signal, and such as by using audio sensor, driver issues restricting signal etc. by sound.
In the present embodiment, using the second communication device by processor and entire car controller communication connection；As other implementations
Mode such as can integrate processor using other modes without establishing the communication connection between processor and entire car controller
On entire car controller etc..
Embodiment of the method:
The present embodiment provides a kind of limiting vehicle speed setting control methods, set with the limiting vehicle speed in the above system embodiment
Control method is identical, and this method is described in detail in system embodiment, seldom explains here.
Claims (10)
1. a kind of limiting vehicle speed control method, which comprises the steps of:
Judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into limit
Fast mode；
Under speed limit mode, the current driving speed of real-time detection vehicle, and judge vehicle current driving speed and the speed limit
Within the set range whether the difference between value；If the difference between vehicle current driving speed and speed limit value is in setting range
It is interior, drop driving torque processing is carried out to vehicle.
2. a kind of limiting vehicle speed control method according to claim 1, which is characterized in that if vehicle current driving speed
Not within the set range, and the current driving speed of vehicle is greater than speed limit value to difference between speed limit value, then by the drive of vehicle
Dynamic torque is reduced to 0.
3. a kind of limiting vehicle speed control method according to claim 1, which is characterized in that the setting range refers to vehicle
The absolute value of the difference of current driving speed and speed limit value is not more than 2km/h.
4. a kind of limiting vehicle speed control method according to claim 3, which is characterized in that in the setting range, if
Difference between the speed limit value and vehicle current driving speed is a, and the current driving torque of vehicle is F0, then to vehicle into
The driving torque of vehicle is F0* (a+2)/4 when row drop driving torque processing, and wherein the unit of a is km/h.
5. a kind of limiting vehicle speed control method according to claim 1, which is characterized in that in vehicle travel process, vehicle
Driving torque according to the current rotating speed and accelerator pedal aperture of vehicular electric machine determine.
6. a kind of limiting vehicle speed control method according to claim 5, which is characterized in that the driving torque and vehicle of vehicle
Relationship between motor speed and accelerator pedal aperture is according to vehicle configuration, motor model and to drive work under operating condition of test
Condition demand passes through obtained by calibrating.
7. a kind of vehicle speed-limiting control system, which is characterized in that including processor, processor is connected with for issuing speed limit setting
The speed limit setting device of signal, and the speed detector for detecting Vehicle Speed；
The processor is used for:
Judge whether to receive speed limit setting signal, if received, using the current speed of vehicle as speed limit value, into limit
Fast mode；
Under speed limit mode, the current driving speed of real-time detection vehicle, and judge vehicle current driving speed and the speed limit
Within the set range whether the difference between value；If the difference between vehicle current driving speed and speed limit value is in setting range
It is interior, drop driving torque processing is carried out to vehicle.
8. a kind of vehicle speed-limiting control system according to claim 7, which is characterized in that if vehicle current driving speed
Difference between speed limit value not within the set range and the current driving speed of vehicle is greater than speed limit value, then by the driving of vehicle
Torque is reduced to 0.
9. a kind of vehicle speed-limiting control system according to claim 7, which is characterized in that the setting range refers to vehicle
The absolute value of the difference of current driving speed and speed limit value is not more than 2km/h.
10. a kind of vehicle speed-limiting control system according to claim 9, which is characterized in that in the setting range, if
Difference between the speed limit value and vehicle current driving speed is a, and the current driving torque of vehicle is F0, then to vehicle into
The driving torque of vehicle is F0* (a+2)/4 when row drop driving torque processing, and wherein the unit of a is km/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965687.6A CN109664762B (en) | 2017-10-17 | 2017-10-17 | Vehicle speed limit control system and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965687.6A CN109664762B (en) | 2017-10-17 | 2017-10-17 | Vehicle speed limit control system and control method |
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| CN109664762A true CN109664762A (en) | 2019-04-23 |
| CN109664762B CN109664762B (en) | 2021-03-26 |
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Cited By (6)
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| CN111114317A (en) * | 2019-12-30 | 2020-05-08 | 上海移为通信技术股份有限公司 | Vehicle speed control method, device and equipment |
| CN111179590A (en) * | 2019-12-24 | 2020-05-19 | 山东国惠安创智能物联发展有限公司 | Remote control method and server for driving speed of electric vehicle |
| CN112589802A (en) * | 2020-12-15 | 2021-04-02 | 上海有个机器人有限公司 | Robot speed control method, system, robot and computer storage medium |
| CN113276687A (en) * | 2021-06-30 | 2021-08-20 | 奇瑞商用车（安徽）有限公司 | Active speed limit control method and system for pure electric vehicle |
| CN113829897A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Control method and device for maximum speed limit of electric automobile |
| CN114919423A (en) * | 2022-05-24 | 2022-08-19 | 酷黑科技（北京）有限公司 | Vehicle control method and device and electronic equipment |
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| CN113276687A (en) * | 2021-06-30 | 2021-08-20 | 奇瑞商用车（安徽）有限公司 | Active speed limit control method and system for pure electric vehicle |
| CN113276687B (en) * | 2021-06-30 | 2022-04-05 | 奇瑞商用车（安徽）有限公司 | Active speed limit control method and system for pure electric vehicle |
| CN113829897A (en) * | 2021-11-15 | 2021-12-24 | 合众新能源汽车有限公司 | Control method and device for maximum speed limit of electric automobile |
| CN114919423A (en) * | 2022-05-24 | 2022-08-19 | 酷黑科技（北京）有限公司 | Vehicle control method and device and electronic equipment |
| CN114919423B (en) * | 2022-05-24 | 2024-06-07 | 酷黑科技（北京）有限公司 | Vehicle control method and device and electronic equipment |
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