CN111267614B - Vehicle active speed limit control method and device - Google Patents
Vehicle active speed limit control method and device Download PDFInfo
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- CN111267614B CN111267614B CN201811482987.XA CN201811482987A CN111267614B CN 111267614 B CN111267614 B CN 111267614B CN 201811482987 A CN201811482987 A CN 201811482987A CN 111267614 B CN111267614 B CN 111267614B
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- vehicle
- limit value
- speed limit
- overload rate
- speed
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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
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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
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/08—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the cargo, e.g. overload
Abstract
The invention provides a vehicle active speed-limiting control method and a device, which can control the current highest speed-limiting value of a vehicle according to the real-time quality of the vehicle, effectively prevent the vehicle from generating a safety problem in the process of overload and overspeed driving, and because the method is active control, the vehicle speed in the process of driving the vehicle can not be controlled due to illegal operation of a driver, thereby ensuring the safety in the process of driving the vehicle and having high reliability.
Description
Technical Field
The invention belongs to the technical field of safe driving of automobiles, and particularly relates to a method and a device for controlling the active speed limit of a vehicle.
Background
The traffic safety accidents caused by the overload problem are forbidden frequently, the overload problem is avoided only by traffic inspection, not only too much manpower and material resources are needed to be input, but also the loophole with incomplete coverage exists, and the overload problem is not solved fundamentally. The overload of the vehicle is mostly caused by the subjective intention of the driver, so that the overload problem cannot be completely eradicated by the driver's self-discipline and traffic inspection fundamentally; the same is true of the problem of vehicle speed limit, and the road vehicle monitoring system can only play a role in warning in a limited road section. Therefore, it is necessary to provide an overload detection and speed limit scheme without being controlled by a driver from a control system of a vehicle, so as to ensure that traffic accidents caused by overload and overspeed problems after the vehicle leaves a factory can not happen at the source.
Disclosure of Invention
The invention aims to provide a vehicle active speed-limiting control method and device, which are used for solving the problem that a vehicle runs over-load and over-speed in the prior art.
In order to achieve the aim, the invention provides an active speed limit control method for a vehicle, which comprises the following steps;
1) detecting the real-time weight of the vehicle, and calculating the overload rate of the vehicle according to the real-time weight of the vehicle and the weight threshold value of the vehicle;
2) calculating to obtain the current highest speed limit value of the vehicle according to the vehicle overload rate and the designed highest vehicle speed of the vehicle, and controlling the vehicle speed not to be larger than the current highest speed limit value of the vehicle if the vehicle overload rate is larger than a preset safety value;
3) if the vehicle overload rate is larger than the preset limit value, the current highest speed limit value of the vehicle is set to be 0.
The invention controls the current highest speed limit value of the vehicle according to the real-time quality of the vehicle, effectively prevents the safety problem of the vehicle in the process of overload and overspeed driving, and because the scheme provided by the invention is active control, the speed of the vehicle in the process of driving can not be controlled due to illegal operation of a driver, thereby ensuring the safety of the vehicle in the process of driving and having high reliability.
In order to limit the speed of the vehicle in the running process, the vehicle safety factor is calculated according to the vehicle overload rate, and the current highest speed limit value of the vehicle is calculated according to the vehicle safety factor and the designed highest speed of the vehicle.
In order to obtain the vehicle overload rate, the calculation formula of the vehicle overload rate lambda is as follows:
λ＝M/M0
wherein M is the real-time weight of the vehicle, M0Is a vehicle weight threshold.
In order to obtain the vehicle safety factor, the calculation formula of the vehicle safety factor is as follows:
f＝6-5*λ
wherein λ is a vehicle overload rate.
In order to obtain the current highest speed limit value of the vehicle, the calculation formula of the current highest speed limit value of the vehicle is as follows:
VM＝V0*f
wherein, V0The maximum vehicle speed is designed for the vehicle.
The invention also provides a vehicle active speed-limiting control device, which comprises a vehicle weight sensor detection module, a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the vehicle weight sensor detection module is used for detecting the real-time weight of a vehicle and sending the real-time weight information of the vehicle to the processor, and the processor executes the program to realize the following steps:
1) calculating the vehicle overload rate according to the real-time weight of the vehicle and the vehicle weight threshold value;
2) calculating to obtain the current highest speed limit value of the vehicle according to the vehicle overload rate and the designed highest vehicle speed of the vehicle, and controlling the vehicle speed not to be larger than the current highest speed limit value of the vehicle if the vehicle overload rate is larger than a preset safety value;
3) if the vehicle overload rate is larger than the preset limit value, the current highest speed limit value of the vehicle is set to be 0.
The invention controls the current highest speed limit value of the vehicle according to the real-time quality of the vehicle, effectively prevents the safety problem of the vehicle in the process of overload and overspeed driving, and because the scheme provided by the invention is active control, the speed of the vehicle in the process of driving can not be controlled due to illegal operation of a driver, thereby ensuring the safety of the vehicle in the process of driving and having high reliability.
In order to limit the speed of the vehicle in the running process, the processor calculates the vehicle safety factor according to the vehicle overload rate, and calculates the current highest speed limit value of the vehicle according to the vehicle safety factor and the designed highest vehicle speed of the vehicle.
In order to obtain the vehicle overload rate, the calculation formula of the vehicle overload rate lambda is as follows:
λ＝M/M0
wherein M is the real-time weight of the vehicle, M0Is a vehicle weight threshold.
In order to obtain the vehicle safety factor, the calculation formula of the vehicle safety factor is as follows:
f＝6-5*λ
wherein λ is a vehicle overload rate.
In order to obtain the current highest speed limit value of the vehicle, the calculation formula of the current highest speed limit value of the vehicle is as follows:
VM＝V0*f
wherein, V0The maximum vehicle speed is designed for the vehicle.
Drawings
FIG. 1 is a flow chart of an active speed limit control method of a vehicle according to the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings:
the embodiment of the device is as follows:
the invention provides a vehicle active speed-limiting control device, which comprises a vehicle weight sensor detection module and a processor, wherein the processor is a vehicle control unit, as other implementation modes, the processor can also be a controller which is independently arranged, and a vehicle driving safety evaluation function, a vehicle speed-limiting control function and a vehicle driving control function are integrated in the vehicle control unit. The vehicle weight sensor detection module is used for detecting the real-time weight of the vehicle and sending the real-time weight information of the vehicle to the vehicle control unit, the vehicle control unit evaluates the current driving safety of the vehicle according to the current weight information of the vehicle, judges whether potential safety hazards exist under the current driving working condition, calculates the vehicle overload rate according to the real-time weight of the vehicle and the vehicle weight threshold value, and calculates the current highest speed limit value of the vehicle according to the vehicle overload rate and the designed highest vehicle speed of the vehicle; when the vehicle overload rate is greater than a preset safety value, controlling the vehicle speed to be not greater than the current highest speed limit value of the vehicle; and when the vehicle overload rate is greater than a preset limit value, controlling the current highest speed limit value of the vehicle to be 0.
The method comprises the following steps:
based on the vehicle active speed limiting control device, as shown in fig. 1, the method for performing speed limiting control on a running vehicle comprises the following steps:
1) the vehicle weight sensor detection module detects the real-time weight of the vehicle and sends the real-time weight information of the vehicle to the vehicle control unit, and the vehicle control unit calculates the vehicle overload rate according to the real-time weight of the vehicle and the vehicle weight threshold value; the calculation formula of the vehicle overload rate is as follows:
λ＝M/M0
wherein M is the real-time weight of the vehicle, M0Is a vehicle weight threshold.
Meanwhile, if the vehicle controller detects that the real-time weight of the vehicle is larger than the vehicle weight threshold value, the vehicle controller reminds the driver of the overload of the current vehicle in a voice and character display mode.
2) And then, the vehicle control unit performs logical operation according to the relationship between the vehicle overload rate and the vehicle safety factor to obtain the vehicle safety factor, wherein the range of the vehicle safety factor is 0-1, and the calculation formula of the vehicle safety factor can be expressed as follows:
f＝6-5*λ
wherein λ is a vehicle overload rate.
After the vehicle safety factor is obtained through calculation, the current highest speed limit value of the vehicle is obtained through calculation according to the vehicle safety factor and the vehicle design highest speed, and the calculation formula of the current highest speed limit value of the vehicle is as follows:
VM＝V0*f
wherein, V0The maximum vehicle speed is designed for the vehicle.
3) When the vehicle overload rate lambda is equal to 1, namely the current weight of the vehicle is equal to the vehicle weight threshold value, the vehicle safety factor f calculated according to the vehicle safety factor calculation formula is 1, a certain driving danger exists at this moment, and the vehicle control unit calculates the highest speed limit value V of the vehicle according to the vehicle maximum speed limit value VMThe output power of the vehicle is closed-loop controlled to achieve the purpose of limiting the vehicle speed in real time.
If the vehicle overload rate is greater than the predetermined limit value, the predetermined limit value of the embodiment is set to 1.2, and when the vehicle overload rate λ is equal to 1.2, that is, the current weight of the vehicle is greater than the vehicle weight threshold value, that is, (the real-time weight of the vehicle-the vehicle weight threshold value)/the vehicle weight threshold value is greater than 20%, the vehicle safety factor f is calculated according to the vehicle safety factor calculation formula to be 0, at this time, if the vehicle continues to drive, a great danger exists, the current highest speed limit value of the vehicle is obtained according to the calculation formula of the current highest speed limit value of the vehicle to be 0, and therefore, the current highest speed limit value of the vehicle is controlled to be 0, that is, the vehicle is controlled not to run any more.
It should be noted that, the vehicle may not be overloaded when starting, but there may be a situation of loading while traveling in the traveling process, which finally causes overload, and in the vehicle overload traveling process, the vehicle safety factor is calculated according to the vehicle weight, and the maximum vehicle speed of the vehicle is adjusted according to the vehicle safety factor.
If the vehicle is not overloaded, but the speed of the vehicle at the moment is greater than the speed threshold value, the vehicle control unit controls to slowly reduce the power output, and when the current speed of the vehicle is less than the speed threshold value, the vehicle control unit recovers the power and keeps running at a proper speed.
The specific embodiments are given above, but the present invention is not limited to the above-described embodiments. The basic idea of the present invention lies in the above basic scheme, and it is obvious to those skilled in the art that no creative effort is needed to design various modified models, formulas and parameters according to the teaching of the present invention. Variations, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (4)
1. A vehicle active speed limit control method is characterized by comprising the following steps:
1) detecting the real-time weight of the vehicle, and calculating the overload rate of the vehicle according to the real-time weight of the vehicle and the weight threshold value of the vehicle;
2) calculating to obtain the current highest speed limit value of the vehicle according to the vehicle overload rate and the designed highest vehicle speed of the vehicle, and controlling the vehicle speed not to be larger than the current highest speed limit value of the vehicle if the vehicle overload rate is larger than a preset safety value;
3) if the vehicle overload rate is larger than a preset limit value, setting the current highest speed limit value of the vehicle to be 0;
calculating to obtain a vehicle safety factor according to the vehicle overload rate, and calculating to obtain a current highest speed limit value of the vehicle according to the vehicle safety factor and the designed highest vehicle speed of the vehicle;
the calculation formula of the vehicle safety factor is as follows:
f＝6-5*λ
wherein, λ is the vehicle overload rate;
the calculation formula of the current highest speed limit value of the vehicle is as follows:
VM＝V0*f
wherein, V0Designing a maximum vehicle speed for the vehicle;
the predetermined limit value is set to 1.2.
2. The active speed limit control method for the vehicle according to claim 1, wherein the calculation formula of the vehicle overload rate λ is as follows:
λ＝M/M0
wherein M is the real-time weight of the vehicle, M0Is a vehicle weight threshold.
3. The active speed-limiting control device for the vehicle is characterized by comprising a vehicle weight sensor detection module, a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the vehicle weight sensor detection module is used for detecting the real-time weight of the vehicle and sending the real-time weight information of the vehicle to the processor, and the processor executes the program to realize the following steps:
1) calculating the vehicle overload rate according to the real-time weight of the vehicle and the vehicle weight threshold value;
2) calculating to obtain the current highest speed limit value of the vehicle according to the vehicle overload rate and the designed highest vehicle speed of the vehicle, and controlling the vehicle speed not to be larger than the current highest speed limit value of the vehicle if the vehicle overload rate is larger than a preset safety value;
3) if the vehicle overload rate is larger than a preset limit value, setting the current highest speed limit value of the vehicle to be 0;
the processor calculates a vehicle safety factor according to the vehicle overload rate, and calculates a current highest speed limit value of the vehicle according to the vehicle safety factor and the designed highest vehicle speed of the vehicle;
the calculation formula of the vehicle safety factor is as follows:
f＝6-5*λ
wherein, λ is the vehicle overload rate;
the calculation formula of the current highest speed limit value of the vehicle is as follows:
VM＝V0*f
wherein, V0Designing a maximum vehicle speed for the vehicle;
the predetermined limit value is set to 1.2.
4. The active speed limit control device of the vehicle as claimed in claim 3, wherein the calculation formula of the vehicle overload rate λ is:
λ＝M/M0
wherein M isReal time weight of vehicle, M0Is a vehicle weight threshold.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811482987.XA CN111267614B (en) | 2018-12-05 | 2018-12-05 | Vehicle active speed limit control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811482987.XA CN111267614B (en) | 2018-12-05 | 2018-12-05 | Vehicle active speed limit control method and device |
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| CN111267614A CN111267614A (en) | 2020-06-12 |
| CN111267614B true CN111267614B (en) | 2022-04-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112429009B (en) * | 2020-11-30 | 2021-12-10 | 中公高远(北京)汽车检测技术有限公司 | Automobile quality detection method and system and vehicle |
| CN113119727A (en) * | 2021-05-07 | 2021-07-16 | 恒大新能源汽车投资控股集团有限公司 | Vehicle overload processing method and device |
| CN116959261B (en) * | 2023-09-20 | 2023-12-15 | 武汉车凌智联科技有限公司 | Vehicle safety driving monitoring and early warning system based on cloud platform |
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| CN103192712A (en) * | 2013-04-07 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Vehicle speed limiting system |
| CN203093756U (en) * | 2013-01-31 | 2013-07-31 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile overloading control system |
| CN203902295U (en) * | 2014-04-22 | 2014-10-29 | 长安大学 | Truck overloading early-warning speed limiting device |
| CN204432407U (en) * | 2015-01-07 | 2015-07-01 | 陕西汽车集团有限责任公司 | Based on overload of vehicle intelligent speed-limiting system and this load transportation vehicle of weighing technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101224751B1 (en) * | 2010-01-21 | 2013-01-21 | 가부시끼 가이샤 구보다 | Speed control structure for work vehicle, information display structure therefor, and speed shift manipulating structure therefor |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203093756U (en) * | 2013-01-31 | 2013-07-31 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile overloading control system |
| CN103192712A (en) * | 2013-04-07 | 2013-07-10 | 无锡市崇安区科技创业服务中心 | Vehicle speed limiting system |
| CN203902295U (en) * | 2014-04-22 | 2014-10-29 | 长安大学 | Truck overloading early-warning speed limiting device |
| CN204432407U (en) * | 2015-01-07 | 2015-07-01 | 陕西汽车集团有限责任公司 | Based on overload of vehicle intelligent speed-limiting system and this load transportation vehicle of weighing technology |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Applicant after: Yutong Bus Co.,Ltd. Address before: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Applicant before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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