CN108305350A - A kind of vehicle load state identification method and system - Google Patents
A kind of vehicle load state identification method and system Download PDFInfo
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- CN108305350A CN108305350A CN201810011320.5A CN201810011320A CN108305350A CN 108305350 A CN108305350 A CN 108305350A CN 201810011320 A CN201810011320 A CN 201810011320A CN 108305350 A CN108305350 A CN 108305350A
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- acceleration
- acceleration area
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
A kind of vehicle load state identification method of offer of the embodiment of the present invention and system, the method includes：Obtain gear information, the summation of acceleration and engine torque percentage of the vehicle to be measured in acceleration area；According to gear information of the vehicle to be measured in the acceleration area, load condition threshold value is obtained；Wherein, the load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；Calculate the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in the acceleration area；The ratio is compared with the load condition threshold value, obtains the load condition of the vehicle to be measured, this method and system need not install any sensor, can reduce the cost and complexity that vehicle load state is identified.
Description
Technical field
The present embodiments relate to technical field of vehicle more particularly to a kind of vehicle load state identification method and systems.
Background technology
Problem is shed for effective solution slag-soil truck, it is desirable that slag-soil truck covers tarpaulin when fully loaded.For fully loaded
When not canopy cover cloth slag-soil truck, speed limit processing will be carried out to it.Need to know the current loading state of vehicle thus.
There are two types of ways commonplace at present, the first is：Logical installation weighing sensor, obtains the current loading of vehicle
Weight, to judge whether current vehicle is fully loaded with；Another kind is：The video image of the wagon box of collection vehicle, by video analysis,
Obtain whether current vehicle is fully loaded with.
But there are following Railway Projects for above-mentioned way：First, it is of high cost；Second, the installation of weighing sensor is number
It is tired；Third, under this environment of slag-soil truck, weighing sensor sensor is easily damaged.
Invention content
For problems of the prior art, the embodiment of the present invention provides a kind of vehicle load state identification method and is
System.
In a first aspect, the embodiment of the present invention provides a kind of vehicle load state identification method, the method includes：
Obtain gear information, the summation of acceleration and engine torque percentage of the vehicle to be measured in acceleration area；
According to gear information of the vehicle to be measured in the acceleration area, load condition threshold value is obtained；Wherein, described
Load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；
Calculate the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in the acceleration area
Value；
The ratio is compared with the load condition threshold value, obtains the load condition of the vehicle to be measured.
Second aspect, the embodiment of the present invention provide a kind of vehicle load state recognition system, the system comprises：
First acquisition module is turned round for obtaining gear information, acceleration and engine of the vehicle to be measured in acceleration area
The summation of square percentage；
Second acquisition module obtains load-carrying for the gear information according to the vehicle to be measured in the acceleration area
State threshold；Wherein, the load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；
Computing module, the summation for calculating engine torque percentage of the vehicle to be measured in the acceleration area
With the ratio of acceleration；
Load condition judgment module obtains described to be measured for the ratio to compare with the load condition threshold value
The load condition of vehicle.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, and the equipment includes memory and processor, described
Processor and the memory complete mutual communication by bus；The memory, which is stored with, to be executed by the processor
Program instruction, the processor calls described program instruction to be able to carry out above-mentioned vehicle load state identification method.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, are stored thereon with computer program,
The computer program realizes above-mentioned vehicle load state identification method when being executed by processor.
Vehicle load state identification method provided in an embodiment of the present invention and system, by obtaining vehicle to be measured in accelerating region
In gear information, the summation of acceleration and engine torque percentage, according to gear of the vehicle to be measured in acceleration area
Information obtains load condition threshold value, calculates summation and the acceleration of engine torque percentage of the vehicle to be measured in acceleration area
Ratio is compared with load condition threshold value, obtains the load condition of the vehicle to be measured, this method and system are or not the ratio of degree
It needs that any sensor is installed, the cost and complexity that vehicle load state is identified can be reduced.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is vehicle load state identification method flow chart provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of vehicle load state recognition system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention；
Fig. 4 is schematic diagram of the vehicle to be measured provided in an embodiment of the present invention in an acceleration area；
Fig. 5 is the message schematic diagram of rotating speed provided in an embodiment of the present invention and torque percentage；
Fig. 6 is the message schematic diagram of speed provided in an embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is explicitly described, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Fig. 1 is vehicle load state identification method flow chart provided in an embodiment of the present invention, as shown in Figure 1, the method
Including：
Step 10 obtains gear information in acceleration area of vehicle to be measured, acceleration and engine torque percentage
Summation；
Step 11, the gear information according to the vehicle to be measured in the acceleration area obtain load condition threshold value；Its
In, the load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；
Step 12, the summation for calculating engine torque percentage of the vehicle to be measured in the acceleration area and acceleration
The ratio of degree；
Step 13 compares the ratio with the load condition threshold value, obtains the load condition of the vehicle to be measured.
Specifically, in the process of moving, there are accelerator, at the uniform velocity process and moderating processes for vehicle to be measured, wherein accelerates
Process can have multiple, and each accelerator can be denoted as an acceleration area, and each acceleration area corresponds to an acceleration.Clothes
Business device can obtain acceleration of the vehicle to be measured in an acceleration area, then, by vehicle to be measured in the acceleration area
Acceleration is compared with preset acceleration rate threshold, if the acceleration in the acceleration area is more than preset acceleration rate threshold,
Then the acceleration area can be identified as effective acceleration area by server.
Server can also obtain gear information of the vehicle to be measured in the acceleration area, and each gear information has relatively
The load condition threshold value answered, wherein load condition threshold value may include：Heavily loaded threshold value and unloaded threshold value.Server can basis
Gear information of the vehicle to be measured in the acceleration area, obtains corresponding load condition threshold value.
Server can also obtain the summation of engine torque percentage of the vehicle to be measured in the acceleration area, then,
Calculate the ratio of the summation and acceleration of the engine torque percentage in the acceleration area.It, will after calculating the ratio
The ratio is compared with the load condition threshold value, according to the result of the comparison, obtains vehicle to be measured in the acceleration area
Load condition.
Server can obtain gear information, acceleration and engine torque hundred of the vehicle to be measured in multiple acceleration areas
The summation of point ratio, the acceleration in each acceleration area is compared with preset acceleration rate threshold, is identified and multiple is effectively added
Fast section obtains corresponding load condition threshold value according to the gear information in each effective acceleration area, calculates each effective
The ratio of the summation and acceleration of engine torque percentage in acceleration area, by each effective acceleration area ratio with
Corresponding load condition threshold value compares, and obtains load condition of the vehicle to be measured in each effective acceleration area.Server
Load condition that can be according to vehicle to be measured in multiple effective acceleration areas, predicts the load condition of vehicle to be measured.
Next, by taking slag-soil truck A is vehicle to be measured as an example, technical side provided in an embodiment of the present invention is elaborated
Case.
If gear information of the slag-soil truck A in acceleration area in A1 be 3 gears, acceleration a1, torque percentage it is total
With for the acceleration duration t1 in n1 and acceleration area A1.The preset acceleration rate threshold of server is a0, preset acceleration duration
Threshold value is t0, if a1 is more than a0, and t1 is more than t0, then acceleration area A1 can be identified as effective acceleration area by server.
Then, it is 3 gears according to gear information, when acquisition gear information is 3 gear from configuration, corresponding load condition threshold value.
Server can be with the ratio of the summation n1 and acceleration a1 of calculated torque percentage, and by the ratio and preset load
Weight state threshold compares, and obtains load conditions of the slag-soil truck A in acceleration area A1.Server can obtain slag-soil truck A and exist
The summation of gear information, acceleration and torque percentage in multiple acceleration areas, identifies slag-soil truck A's according to the method described above
Multiple effective acceleration areas, and load conditions of the slag-soil truck A in each effective acceleration area is obtained, then, according to slag-soil truck A
Load condition in multiple effective acceleration areas, the load condition of prediction slag-soil truck A.
Vehicle load state identification method provided in an embodiment of the present invention, by obtaining vehicle to be measured in acceleration area
The summation of gear information, acceleration and engine torque percentage is obtained according to gear information of the vehicle to be measured in acceleration area
Load condition threshold value is taken, the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in acceleration area is calculated
Value, ratio is compared with load condition threshold value, obtains the load condition of the vehicle to be measured, this method need not be installed any
Sensor can reduce the cost and complexity that vehicle load state is identified.
Optionally, on the basis of the above embodiments, described that the ratio compares with the load condition threshold value, it obtains
To the load condition of the vehicle to be measured, including：
If the ratio is more than the heavily loaded threshold value, the vehicle to be measured is in heavy condition；
If the ratio is less than the unloaded threshold value, the vehicle to be measured is in light condition.
Specifically, server calculates the total of engine torque percentage of the vehicle to be measured in an effective acceleration area
It, can be by ratio load condition threshold value corresponding with the gear information in the acceleration area after the ratio with acceleration
It compares.
If the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in an effective acceleration area
Value then judges that vehicle to be measured is in heavy condition in effective acceleration area more than the heavily loaded threshold value got.
If the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in an effective acceleration area
Value then judges that vehicle to be measured is in light condition in effective acceleration area less than the unloaded threshold value got.
If the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in an effective acceleration area
Value, between the heavily loaded threshold value that gets and unloaded threshold value, then load condition of the vehicle to be measured in effective acceleration area
It can not judge.
Server can judge load condition of the vehicle to be measured in each effective acceleration area according to the method described above,
Then, the load condition in all effective acceleration areas is counted, according to statistics as a result, predicting vehicle to be measured
Load condition.If server statistics load condition of the vehicle to be measured in 100 effective acceleration areas, wherein 80 effectively
In acceleration area, vehicle to be measured is in heavy condition, wherein in 5 effective acceleration areas, vehicle to be measured is in light condition,
In in 15 effective acceleration areas, the load condition of vehicle to be measured can not judge, then server can be according to the knot of above-mentioned statistics
Fruit predicts vehicle to be measured and is in heavy condition.
Vehicle load state identification method provided in an embodiment of the present invention, by by vehicle to be measured in an effective accelerating region
The ratio of the summation and acceleration of interior engine torque percentage, compared with corresponding load condition threshold value, if than
Value is more than heavily loaded threshold value, then judges that vehicle to be measured is in heavy condition, if ratio is less than unloaded threshold value, judges at vehicle to be measured
In light condition, server can count load condition of the vehicle to be measured in multiple effective acceleration areas, finally predict and wait for
The load condition of measuring car so that the method more science.
Optionally, on the basis of the above embodiments, the gear information for obtaining vehicle to be measured in acceleration area plus
The summation of speed and engine torque percentage, including：
Speed, the summation of rotating speed, engine torque percentage of the vehicle to be measured in the acceleration area are obtained, with
And the beginning and ending time of the acceleration area；
According to speed and rotating speed of the vehicle to be measured in the acceleration area, obtains the vehicle to be measured and add described
Gear information in fast section；
According to the beginning and ending time of speed and the acceleration area of the vehicle to be measured in the acceleration area, institute is obtained
State acceleration of the vehicle to be measured in the acceleration area.
Specifically, the gear information and acceleration described in above-described embodiment, can acquire as follows.
Server can obtain speed and rotating speed of the vehicle to be measured in an acceleration area, calculate vehicle to be measured and add at this
The ratio of rotating speed and speed in fast section identifies the gear information in the acceleration area according to the ratio of rotating speed and speed.
For example, vehicle to be measured, in acceleration area A2, the ratio of rotating speed and speed is 53, and in acceleration area A3, rotating speed
Ratio with speed is 103, and server can judge to know, vehicle to be measured is adding according to the corresponding threshold value of each gear information
It is respectively at different gears in fast section A2 and acceleration area A3.For example, server can be obtained according to preset threshold decision
Know, for vehicle to be measured in acceleration area A2, gear information is 3 gears, and in acceleration area A3, gear information is 2 gears.
When server can also obtain the start-stop of speed and the acceleration area of the vehicle to be measured in each acceleration area
Between, according to the speed got, the variable quantity of speed of the vehicle to be measured in each acceleration area is calculated, according to acceleration area
Beginning and ending time obtains the duration of the acceleration area.Server can calculate, vehicle of the vehicle to be measured in an acceleration area
The ratio of fast variable quantity and the duration of the acceleration area, obtains acceleration of the vehicle to be measured in the acceleration area.Service
Device can also calculate the duration of acceleration area according to the beginning and ending time of the acceleration area got, which is
The acceleration duration of the acceleration area identifies the acceleration area if the acceleration duration is less than preset acceleration duration threshold value
For invalid acceleration area.
Fig. 4 is schematic diagram of the vehicle to be measured provided in an embodiment of the present invention in an acceleration area, as shown in figure 4, waiting for
In 0.25 second to 3.75 seconds section, speed is gradually increasing measuring car, and gear value is maintained essentially at a particular value model
In enclosing, it is believed that be the same gear, then the section in 0.25 second to 3.75 seconds can be identified as vehicle to be measured by server
An acceleration area.
Vehicle load state identification method provided in an embodiment of the present invention, by according to vehicle to be measured in acceleration area
Speed and rotating speed obtain gear information of the vehicle to be measured in acceleration area, according to speed of the vehicle to be measured in acceleration area
With the beginning and ending time of acceleration area, acceleration of the vehicle to be measured in acceleration area is obtained so that the method more science.
Optionally, on the basis of the above embodiments, the vehicle for obtaining the vehicle to be measured in the acceleration area
The summation of speed, rotating speed, engine torque percentage, including：
Every preset time period acquires the rotating speed and engine torque of the vehicle to be measured by CAN bus from ECU
Percentage；
Every the preset time period, by CAN bus from ECU, the engine torque hundred of the vehicle to be measured is acquired
Divide ratio, the engine torque percentage in the acceleration area is added up, the engine obtained in the acceleration area is turned round
The summation of square percentage；
Every the preset time period, by CAN bus from ECU or instrument, the speed of the vehicle to be measured is acquired.
Specifically, server can be with every preset time period, for example every 10ms acquires the rotating speed of primary vehicle to be measured.Clothes
Business device can also acquire the engine torque percentage of primary vehicle to be measured every identical preset time period, such as every 10ms
Than by all engine torque percentages in an acceleration area, adding up, obtaining vehicle to be measured in the acceleration area
Engine torque percentage summation.The server can also be acquired every identical preset time period and once wait for measuring car
Speed.Wherein, the rotating speed of vehicle to be measured and engine torque percentage, can be by CAN bus from the ECU of vehicle to be measured
It is collected in (Electronic Control Unit, electronic control unit).The speed of vehicle to be measured, can be total by CAN
Line is collected from ECU or instrument, can also be calculated by pulsed quantity.
Fig. 5 is the message schematic diagram of rotating speed provided in an embodiment of the present invention and torque percentage, and Fig. 6 is the embodiment of the present invention
The message schematic diagram of the speed of offer.As shown in figure 5, server can read the CAN message of ECU, turning for vehicle to be measured is obtained
Speed and engine torque percentage.As shown in fig. 6, server can read the CAN message of ECU, the speed of vehicle to be measured is obtained.
The speed of vehicle to be measured can also be calculated by the vehicle speed pulse of acquisition vehicle to be measured in server.
Vehicle load state identification method provided in an embodiment of the present invention passes through CAN bus by every preset time period
From ECU, acquire the rotating speed and engine torque percentage of vehicle to be measured, every the preset time period, by CAN bus from
In ECU or instrument, the speed of vehicle to be measured is acquired so that the method more science.
Fig. 2 is the structural schematic diagram of vehicle load state recognition system provided in an embodiment of the present invention, as shown in Fig. 2, institute
The system of stating includes：First acquisition module 20, the second acquisition module 21, computing module 22 and load condition judgment module 23, wherein：
First acquisition module 20 is used to obtain gear information, acceleration and engine of the vehicle to be measured in acceleration area and turns round
The summation of square percentage；Second acquisition module 21 is used for the gear information according to the vehicle to be measured in the acceleration area,
Obtain load condition threshold value；Wherein, the load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；Computing module 22 is used for
Calculate the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in the acceleration area；Load-carrying shape
State judgment module 23 obtains the load-carrying shape of the vehicle to be measured for the ratio to compare with the load condition threshold value
State.
Specifically, vehicle load state recognition system provided in an embodiment of the present invention may include：First acquisition module
20, the second acquisition module 21, computing module 22 and load condition judgment module 23.
In the process of moving, there are accelerator, at the uniform velocity process and moderating processes, wherein accelerator can for vehicle to be measured
Multiple to have, each accelerator can be denoted as an acceleration area, and each acceleration area corresponds to an acceleration.First obtains
Module 20 can obtain acceleration of the vehicle to be measured in an acceleration area, and the adding in the acceleration area by vehicle to be measured
Speed is compared with preset acceleration rate threshold, if the acceleration in the acceleration area is more than preset acceleration rate threshold,
The acceleration area can be identified as effective acceleration area by the first acquisition module 20.
First acquisition module 20 can also obtain gear information of the vehicle to be measured in the acceleration area, each gear information
There is corresponding load condition threshold value, wherein load condition threshold value may include：Heavily loaded threshold value and unloaded threshold value.Second obtains
Modulus block 21 can obtain corresponding load condition threshold value according to gear information of the vehicle to be measured in the acceleration area.
First acquisition module 20 can also obtain the total of engine torque percentage of the vehicle to be measured in the acceleration area
With computing module 22 can calculate the ratio of the summation and acceleration of the engine torque percentage in the acceleration area.Load-carrying
The load-carrying shape that condition judgment module 23 can get the calculated ratio of computing module 22 and the second acquisition module 21
State threshold value compares, and according to the result of the comparison, obtains load condition of the vehicle to be measured in the acceleration area.
First acquisition module 20 can obtain gear information of the vehicle to be measured in multiple acceleration areas, acceleration and start
Acceleration in each acceleration area is compared with preset acceleration rate threshold, is identified more by the summation of machine torque percentage
A effective acceleration area, the second acquisition module 21 can obtain corresponding according to the gear information in each effective acceleration area
Load condition threshold value, computing module 22 can calculate the summation of the engine torque percentage in each effective acceleration area with
The ratio of acceleration, load condition judgment module 23 can by each effective acceleration area ratio and corresponding load-carrying shape
State threshold value compares, and obtains load condition of the vehicle to be measured in each effective acceleration area.Load condition judgment module 23 can
With the load condition according to vehicle to be measured in multiple effective acceleration areas, the prediction load condition of vehicle to be measured is obtained.
Next, by taking slag-soil truck A is vehicle to be measured as an example, technical side provided in an embodiment of the present invention is elaborated
Case.
If gear information of the slag-soil truck A in acceleration area A1 is the summation of 3 gears, acceleration a1, torque percentage
For the acceleration duration t1 in n1 and acceleration area A1.First acquisition module, 20 preset acceleration rate threshold is a0, preset to add
Fast duration threshold value is t0, if a1 is more than a0, and t1 is more than t0, then the first acquisition module 20 can identify A1 in acceleration area
For effective acceleration area.Second acquisition module 21 can be 3 gears according to gear information, and it is 3 that gear information is obtained from database
When gear, corresponding load condition threshold value.
Computing module 22 can calculate the ratio of n1 and a1, load condition judgment module 23 can by the ratio with it is preset
Load condition threshold value compares, and obtains slag-soil truck A, the load condition in acceleration area A1.
Vehicle load state recognition system provided in an embodiment of the present invention, function referring in particular to above method embodiment,
Details are not described herein again.
Vehicle load state recognition system provided in an embodiment of the present invention, by obtaining vehicle to be measured in acceleration area
The summation of gear information, acceleration and engine torque percentage is obtained according to gear information of the vehicle to be measured in acceleration area
Load condition threshold value is taken, the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in acceleration area is calculated
Value, ratio is compared with load condition threshold value, obtains the load condition of the vehicle to be measured, which need not install any
Sensor can reduce the cost and complexity that vehicle load state is identified.
Optionally, on the basis of the above embodiments, the load condition judgment module is specifically used for：
When the ratio is more than the heavily loaded threshold value, judge that the vehicle to be measured is in heavy condition；
When the ratio is less than the unloaded threshold value, judge that the vehicle to be measured is in light condition.
Specifically, computing module calculates engine torque percentage of the vehicle to be measured in an effective acceleration area
After the ratio of summation and acceleration, load condition judgment module can be corresponding with the gear got information by the ratio
Load condition threshold value compares.
If load condition judgment module is known by comparing, engine of the vehicle to be measured in an effective acceleration area
The summation of torque percentage and the ratio of acceleration are more than heavily loaded threshold value, then judge vehicle to be measured in effective acceleration area
In heavy condition.
If load condition judgment module is known by comparing, engine of the vehicle to be measured in an effective acceleration area
The summation of torque percentage and the ratio of acceleration then judge that vehicle to be measured effectively adds at this less than the unloaded threshold value got
Light condition is in fast section.
Load condition judgment module can judge vehicle to be measured in each effective acceleration area according to the method described above
Then load condition counts the load condition in all effective acceleration areas, according to being waited for as a result, obtaining for statistics
The prediction load condition of measuring car.For example, if load condition judgment module has counted vehicle to be measured in 100 effective accelerating regions
In in load condition, wherein in 80 effective acceleration areas, vehicle to be measured be in heavy condition, wherein 5 effective acceleration
In section, vehicle to be measured is in light condition, wherein in 15 effective acceleration areas, the load condition of vehicle to be measured can not be sentenced
Disconnected, then load condition judgment module can be according to above-mentioned statistics as a result, predicting that vehicle to be measured is in heavy condition.
Vehicle load state recognition system provided in an embodiment of the present invention, by by vehicle to be measured in an effective accelerating region
The ratio of the summation and acceleration of interior engine torque percentage, compared with corresponding load condition threshold value, if than
Value is more than heavily loaded threshold value, then vehicle to be measured is in heavy condition, if ratio is less than unloaded threshold value, vehicle to be measured is in unloaded shape
State, server can count load condition of the vehicle to be measured in multiple effective acceleration areas, finally predict vehicle to be measured
Load condition so that the system more science.
Optionally, on the basis of the above embodiments, first acquisition module includes：Acquisition submodule, gear information
Computational submodule and accelerometer operator module, wherein：
Acquisition submodule is used to obtain speed of the vehicle to be measured in the acceleration area, rotating speed, engine torque
The beginning and ending time of the summation of percentage and the acceleration area；Gear information computational submodule is used to wait for measuring car according to
Gear letter of the vehicle to be measured in the acceleration area is calculated in speed and rotating speed in the acceleration area
Breath；Accelerometer operator module is used for according to speed of the vehicle to be measured in the acceleration area and the acceleration area
Beginning and ending time obtains acceleration of the vehicle to be measured in the acceleration area.
Specifically, the first acquisition module described in above-described embodiment may include：Acquisition submodule, gear information meter
Operator module and accelerometer operator module.
Acquisition submodule can obtain speed and rotating speed of the vehicle to be measured in an acceleration area, and gear information calculates son
Module can calculate the ratio of rotating speed and speed of the vehicle to be measured in the acceleration area, according to the ratio of rotating speed and speed, know
Do not go out the gear information in the acceleration area.
For example, vehicle to be measured, in acceleration area A2, the ratio of rotating speed and speed is 53, and in acceleration area A3, rotating speed
Ratio with speed is 103, and gear information computational submodule can judge to know according to the corresponding threshold value of each gear information,
Vehicle to be measured is respectively at different gears in acceleration area A2 and acceleration area A3.For example, can be according to preset threshold value
Judgement knows that for vehicle to be measured in acceleration area A2, gear information is 3 gears, and in acceleration area A3, gear information is 2 gears.
Acquisition submodule can also obtain the start-stop of the vehicle to be measured speed in each acceleration area and the acceleration area
Time, the speed that accelerometer operator module can be got according to acquisition submodule calculate in each acceleration area
The variable quantity of speed, according to the beginning and ending time for the acceleration area that acquisition submodule is got, obtain the acceleration area it is lasting when
Between.Accelerometer operator module can calculate continuing for speed variable quantity of the vehicle to be measured in acceleration area and the acceleration area
The ratio of time obtains acceleration of the vehicle to be measured in the acceleration area.
Correspondingly, when load condition judgment module can also be according to the start-stop for the acceleration area that acquisition submodule is got
Between, the duration of acceleration area is calculated, which is the acceleration duration of the acceleration area, if the acceleration duration is small
In preset acceleration duration threshold value, then the acceleration area is identified as invalid acceleration area.
Vehicle load state recognition system provided in an embodiment of the present invention, by according to vehicle to be measured in acceleration area
Speed and rotating speed obtain gear information of the vehicle to be measured in acceleration area, according to speed of the vehicle to be measured in acceleration area
With the beginning and ending time of acceleration area, acceleration of the vehicle to be measured in acceleration area is obtained so that the system more science.
Optionally, on the basis of the above embodiments, the acquisition submodule includes：First collecting unit, the second acquisition
Unit and third collecting unit, wherein：
First collecting unit module waits for measuring car for every preset time period by CAN bus from ECU described in acquisition
Rotating speed；Second collecting unit is used to, every the preset time period, by CAN bus from ECU, measuring car is waited for described in acquisition
Engine torque percentage, the engine torque percentage in the acceleration area is added up, the acceleration is obtained
The summation of engine torque percentage in section；Third acquisition module unit is used to, every the preset time period, pass through CAN
Bus acquires the speed of the vehicle to be measured from ECU or instrument.
Specifically, the acquisition submodule described in above-described embodiment may include：First collecting unit, the second collecting unit
With third collecting unit.
First collecting unit can be every the preset period, for example, acquiring the rotating speed of primary vehicle to be measured every 10ms.
Second collecting unit can acquire the engine torque of primary vehicle to be measured every identical preset time period, such as every 10ms
All engine torque percentages in one acceleration area are added up, obtain vehicle to be measured in the accelerating region by percentage
The summation of interior engine torque percentage.
Third collecting unit can acquire the speed of primary vehicle to be measured every identical preset time period.Wherein, to be measured
The rotating speed and engine torque percentage of vehicle, can be by CAN bus from the ECU (Electronic of vehicle to be measured
Control Unit, electronic control unit) in collect.The speed of vehicle to be measured, can be by CAN bus from ECU or instrument
It collects, can also be calculated by pulsed quantity in table.
Vehicle load state recognition system provided in an embodiment of the present invention passes through CAN bus by every preset time period
From ECU, acquire the rotating speed and engine torque percentage of vehicle to be measured, every the preset time period, by CAN bus from
In ECU or instrument, the speed of vehicle to be measured is acquired so that the system more science.
Fig. 3 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention, as shown in figure 3, the equipment includes：Place
Device (processor) 31, memory (memory) 32 and bus 33 are managed, wherein：
The processor 31 and the memory 32 complete mutual communication by the bus 33；The processor 31
For calling the program instruction in the memory 32, to execute the method that above-mentioned each method embodiment is provided, such as including：
Obtain gear information, the summation of acceleration and engine torque percentage of the vehicle to be measured in acceleration area；It is waited for according to described
Gear information of the measuring car in the acceleration area obtains load condition threshold value；Wherein, the load condition threshold value includes：
Heavily loaded threshold value and unloaded threshold value；Calculate the summation of engine torque percentage of the vehicle to be measured in the acceleration area with
The ratio of acceleration；The ratio is compared with the load condition threshold value, obtains the load condition of the vehicle to be measured.
The embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：Obtain vehicle to be measured
The summation of gear information, acceleration and engine torque percentage in acceleration area；According to the vehicle to be measured described
Gear information in acceleration area obtains load condition threshold value；Wherein, the load condition threshold value includes：Heavily loaded threshold value and sky
Carry threshold value；Calculate the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in the acceleration area
Value；The ratio is compared with the load condition threshold value, obtains the load condition of the vehicle to be measured.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage
Medium storing computer instructs, and the computer instruction makes the computer execute the side that above-mentioned each method embodiment is provided
Method, such as including：Obtain the total of gear information of the vehicle to be measured in acceleration area, acceleration and engine torque percentage
With；According to gear information of the vehicle to be measured in the acceleration area, load condition threshold value is obtained；Wherein, the load-carrying
State threshold includes：Heavily loaded threshold value and unloaded threshold value；Calculate engine torque of the vehicle to be measured in the acceleration area
The summation of percentage and the ratio of acceleration；The ratio is compared with the load condition threshold value, obtains described waiting for measuring car
Load condition.
The embodiments such as electronic equipment described above are only schematical, illustrate as separating component wherein described
Unit may or may not be physically separated, and the component shown as unit may or may not be object
Manage unit, you can be located at a place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying wound
In the case of the labour for the property made, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the embodiment of the present invention rather than right
It is limited；Although the embodiment of the present invention is described in detail with reference to foregoing embodiments, the ordinary skill of this field
Personnel should understand that：It still can be with technical scheme described in the above embodiments is modified, or to which part
Or all technical features carries out equivalent replacement；And these modifications or replacements, it does not separate the essence of the corresponding technical solution
The range of each embodiment technical solution of the embodiment of the present invention.
Claims (10)
1. a kind of vehicle load state identification method, which is characterized in that including：
Obtain gear information, the summation of acceleration and engine torque percentage of the vehicle to be measured in acceleration area；
According to gear information of the vehicle to be measured in the acceleration area, load condition threshold value is obtained；Wherein, the load-carrying
State threshold includes：Heavily loaded threshold value and unloaded threshold value；
Calculate the ratio of the summation and acceleration of engine torque percentage of the vehicle to be measured in the acceleration area；
The ratio is compared with the load condition threshold value, obtains the load condition of the vehicle to be measured.
2. according to the method described in claim 1, it is characterized in that, it is described by the ratio compared with the load condition threshold value
Compared with, the load condition of the vehicle to be measured is obtained, including：
If the ratio is more than the heavily loaded threshold value, the vehicle to be measured is in heavy condition；
If the ratio is less than the unloaded threshold value, the vehicle to be measured is in light condition.
3. according to the method described in claim 1, it is characterized in that, the gear letter for obtaining vehicle to be measured in acceleration area
The summation of breath, acceleration and engine torque percentage, including：
Obtain speed, the summation of rotating speed, engine torque percentage of the vehicle to be measured in the acceleration area, Yi Jisuo
State the beginning and ending time of acceleration area；
According to speed and rotating speed of the vehicle to be measured in the acceleration area, the vehicle to be measured is obtained in the accelerating region
Interior gear information；
According to the beginning and ending time of speed and the acceleration area of the vehicle to be measured in the acceleration area, described wait for is obtained
Acceleration of the measuring car in the acceleration area.
4. according to the method described in claim 3, it is characterized in that, described obtain the vehicle to be measured in the acceleration area
Speed, the summation of rotating speed, engine torque percentage, including：
Every preset time period acquires the rotating speed of the vehicle to be measured by CAN bus from ECU；
Every the preset time period, by CAN bus from ECU, the engine torque percentage of the vehicle to be measured is acquired,
Engine torque percentage in the acceleration area is added up, the engine torque percentage in the acceleration area is obtained
The summation of ratio；
Every the preset time period, by CAN bus from ECU or instrument, the speed of the vehicle to be measured is acquired.
5. a kind of vehicle load state recognition system, which is characterized in that including：
First acquisition module, for obtaining gear information, acceleration and engine torque hundred of the vehicle to be measured in acceleration area
Divide the summation of ratio；
Second acquisition module obtains load condition for the gear information according to the vehicle to be measured in the acceleration area
Threshold value；Wherein, the load condition threshold value includes：Heavily loaded threshold value and unloaded threshold value；
Computing module, for calculate the summation of engine torque percentage of the vehicle to be measured in the acceleration area with plus
The ratio of speed；
Load condition judgment module obtains the vehicle to be measured for the ratio to compare with the load condition threshold value
Load condition.
6. system according to claim 5, which is characterized in that the load condition judgment module is specifically used for：
When the ratio is more than the heavily loaded threshold value, judge that the vehicle to be measured is in heavy condition；
When the ratio is less than the unloaded threshold value, judge that the vehicle to be measured is in light condition.
7. system according to claim 5, which is characterized in that first acquisition module includes：
Acquisition submodule, for obtaining speed of the vehicle to be measured in the acceleration area, rotating speed, engine torque percentage
The beginning and ending time of the summation of ratio and the acceleration area；
Gear information computational submodule is calculated for the speed and rotating speed according to the vehicle to be measured in the acceleration area
Obtain gear information of the vehicle to be measured in the acceleration area；
Accelerometer operator module is used for the speed in the acceleration area and the acceleration area according to the vehicle to be measured
Beginning and ending time, obtain acceleration of the vehicle to be measured in the acceleration area.
8. system according to claim 7, which is characterized in that the acquisition submodule includes：
First collecting unit is used for every preset time period, by CAN bus from ECU, acquires turning for the vehicle to be measured
Speed；
Second collecting unit, for every the preset time period, by CAN bus from ECU, acquiring the vehicle to be measured
Engine torque percentage in the acceleration area is added up, obtains the acceleration area by engine torque percentage
The summation of interior engine torque percentage；
Third collecting unit, for every the preset time period, by CAN bus from ECU or instrument, acquisition to be described to be measured
The speed of vehicle.
9. a kind of electronic equipment, which is characterized in that including memory and processor, the processor and the memory pass through total
Line completes mutual communication；The memory is stored with the program instruction that can be executed by the processor, the processor tune
It is able to carry out the method as described in Claims 1-4 is any with described program instruction.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The method as described in Claims 1-4 is any is realized when processor executes.
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| CN201810011320.5A CN108305350A (en) | 2018-01-05 | 2018-01-05 | A kind of vehicle load state identification method and system |
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Application publication date: 20180720 |