CN102496297A - Vehicle overload monitoring device and automobile - Google Patents
Vehicle overload monitoring device and automobile Download PDFInfo
- Publication number
- CN102496297A CN102496297A CN2011104178989A CN201110417898A CN102496297A CN 102496297 A CN102496297 A CN 102496297A CN 2011104178989 A CN2011104178989 A CN 2011104178989A CN 201110417898 A CN201110417898 A CN 201110417898A CN 102496297 A CN102496297 A CN 102496297A
- Authority
- CN
- China
- Prior art keywords
- indicator lamp
- length
- turn
- risk
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 claims abstract description 51
- 239000000725 suspension Substances 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000012773 waffles Nutrition 0.000 description 1
Images
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a vehicle overload monitoring device, which comprises a displacement acquisition unit, a control unit and a display unit, wherein the displacement acquisition unit is used for acquiring a length or shape variable signal of an elastic component in a vehicle driving system suspension in real time and outputting the acquired length/shape variable signal; the control unit is used for receiving the length or shape variable signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received length or shape variable signal, and outputting a control signal according to a judging result; and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal. By the device, whether the vehicle is in the overload state can be monitored immediately, and the device has a simple structure and is convenient and feasible.
Description
Technical Field
The invention relates to a vehicle overload monitoring device capable of warning overload and an automobile adopting the vehicle overload monitoring device.
Background
At present, in China, the overload phenomenon of vehicles with large tons and small targets is serious, the overloaded vehicles are like weapons which predate life and natural enemies of road facilities, the overload of roads is caused, traffic accidents are easily caused, vehicle damage and personal casualties are caused, and the serious loss is brought to the property of the nation and people, the universality and the harmfulness of the overloaded vehicles become a serious problem in the current traffic transportation aspect of China, so that measures are necessary for reminding drivers of the overload state of the current vehicles.
The Chinese utility model with the publication number of CN201173812Y discloses an automatic alarm device for vehicle overload, which can monitor the vehicle overload condition in real time and has certain feasibility. However, after the device judges that the automobile is overloaded, the device needs to send information to the remote terminal receiving module through a GSM or CDMA network, and after the remote terminal receiving module receives the information, the remote terminal receiving module also sends a vehicle stop instruction to the intelligent main control module through the network to control the automobile to stop running. It can be seen that the device has the following problems: firstly, the network is needed as a way to transmit instructions, so the stability and real-time performance are limited by the stability and speed of the network; secondly, the structure is complex and the cost is high; thirdly, the device controls the automobile to stop running by means of the remote terminal receiving module after judging that the automobile is overloaded, and cannot remind a driver whether to be overloaded in real time in the process of loading heavy objects, so that the overload problem cannot be fundamentally solved.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, provides a vehicle overload monitoring device capable of warning overload and an automobile adopting the vehicle overload monitoring device, and the vehicle overload monitoring device has a simple structure and is convenient and easy to operate.
The technical scheme adopted for solving the technical problem of the invention is that the vehicle overload monitoring device comprises:
the displacement acquisition unit is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and outputting an acquired length signal/deformation signal;
the control unit is used for receiving the length signal/deformation quantity signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received length/deformation quantity, and outputting a control signal according to a judgment result;
and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal.
Preferably, the control unit includes a determination module, the determination module stores an overweight critical length/overweight deformation amount corresponding to the load capacity of the vehicle, and the determination module is configured to receive the length signal/deformation amount signal output by the displacement acquisition unit, compare the received length/deformation amount with the overweight critical length/overweight deformation amount therein, and output different control signals according to the comparison result.
Wherein, including warning pilot lamp in the display element, the judgement module exports different control signal according to different comparison result in order to open or close the warning pilot lamp in the display element:
when the comparison result shows that the received length is smaller than the overweight critical length, judging that the vehicle is overloaded, and controlling to output a warning signal to start a warning indicator lamp; when the comparison result is that the received length is greater than or equal to the overweight critical length, judging that the vehicle is not overloaded, and controlling to output a safety signal to turn off the warning indicator lamp or not to turn on the warning indicator lamp; or,
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, judging that the vehicle is not overloaded, and controlling to output a safety signal to turn off the warning indicator lamp or not to turn on the warning indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the overweight deformation, judging that the vehicle is overloaded, and controlling to output a warning signal to turn on a warning indicator lamp.
Further preferably, the display unit includes a warning indicator and a safety indicator, and the determining module outputs different control signals according to different comparison results to turn on or off the warning indicator and the safety indicator in the display unit:
when the comparison result is that the received length is greater than or equal to the overweight critical length, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; when the comparison result shows that the received length is smaller than the overweight critical length, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp, and outputting a warning signal to turn on the warning indicator lamp; or,
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the overweight deformation, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp, and outputting an alert signal to turn on the alert indicator lamp.
Wherein, the spring component adopts a spiral spring, the overweight critical length stored in the judging module is 280mm, and the overweight deformation amount is 20 mm; and the spring component adopts a steel plate spring, so that the overweight critical length stored in the judgment module is 180mm, and the overweight deformation amount is 20 mm.
More preferably, the display unit further includes a high-risk indicator, the determination module further stores a high-risk critical length/high-risk deformation amount, and after receiving the length signal/deformation amount signal output by the displacement acquisition unit, the determination module compares the received length with an overweight critical length value, a high-risk critical length/overweight deformation amount, and a high-risk deformation amount therein, and outputs different control signals according to a comparison result:
when the comparison result is that the received length is greater than or equal to the overweight critical length, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp and the high-risk indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; when the comparison result is that the received length is smaller than the overweight critical length and is greater than or equal to the high-risk critical length, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and outputting a warning signal to turn on the warning indicator lamp; when the comparison result is that the received length is smaller than the high-risk critical length, judging that the vehicle is seriously overloaded, controlling to turn off a safety indicator lamp and a warning indicator lamp, and outputting a high-risk signal to turn on the high-risk indicator lamp;
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp and the high-risk indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; when the comparison result shows that the received deformation is greater than or equal to the overweight deformation and less than the high-risk deformation, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and outputting a warning signal to turn on the warning indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the high-risk deformation, judging that the vehicle is seriously overloaded, controlling to turn off the safety indicator lamp and the warning indicator lamp, and outputting a high-risk signal to turn on the high-risk indicator lamp.
The spring assembly adopts a spiral spring, the overweight critical length stored in the judgment module is 280mm, the high-risk critical length is 260mm, the overweight deformation amount is 20mm, and the high-risk deformation amount is 40 mm; the spring assembly is a steel plate spring, the overweight critical length stored in the judgment module is 180mm, the high-risk critical length is 160mm, the overweight deformation amount is 20mm, and the high-risk deformation amount is 40 mm.
Preferably, the displacement acquisition unit adopts a displacement sensor or a distance sensor, and the control unit adopts a DSP controller.
The displacement acquisition unit adopts a displacement sensor with the model of ODSL 8/V4-45-S12 or a resistance-type distance sensor, the control unit adopts an ADSP-2101 DSP chip, and the display unit adopts a light-emitting diode.
A vehicle overload monitoring device comprises a displacement acquisition unit, a control unit, a display unit and a power supply, wherein the displacement acquisition unit, the control unit, the display unit and the power supply form a closed circuit,
the displacement acquisition unit adopts a resistance type displacement sensor which is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and converting the length/deformation of the elastic component into a resistance value in a closed loop corresponding to the length/deformation so as to change the total resistance in the closed loop,
the control unit comprises a current acquisition module and a judgment module, and the current acquisition module is used for acquiring the current in the closed loop in real time and outputting the acquired current signal; the judging module is used for receiving the current signal collected by the current collecting module, judging whether the vehicle is in an overload state according to the received current signal and outputting a control signal according to a judgment result,
and the display unit is used for receiving the control signal output by the judgment module and displaying according to the received control signal.
The judging unit is used for receiving the current signal acquired by the current acquisition module, comparing the current signal with the overweight critical current in the current signal, and outputting different control signals according to the comparison result to turn on or turn off the warning indicator lamp.
Preferably, the display unit further comprises a safety indicator lamp and a high-risk indicator lamp, the judgment module further stores high-risk critical current, the judgment module compares the current signal collected by the current collection module with the overweight critical current and the high-risk critical current in the judgment module after receiving the current signal, and outputs different control signals according to the comparison result to respectively turn on or turn off the safety indicator lamp, the warning indicator lamp and the high-risk indicator lamp.
Preferably, the spring assembly adopts a spiral spring, the overweight critical current stored in the judgment module is 0.2A, and the high-risk critical current is 0.02A; the spring assembly is a steel plate spring, the overweight critical current stored in the judgment module is 0.1A, and the high-risk critical current is 0.01A.
An automobile adopting the vehicle overload monitoring device.
The invention has the beneficial effects that: the overload warning device can judge whether the vehicle is loaded or not in real time according to the loading condition of the vehicle, feeds back the overload degree in real time under the overload condition, displays whether the vehicle is overloaded or not and the overload severity degree through the display unit so as to remind a driver of the loading condition of the vehicle in real time, and whether the vehicle is a safe load or a load needs to be unloaded properly, and is high in operability and real-time performance, simple in structure, convenient and easy to operate.
Drawings
Fig. 1 is a schematic structural view of a mounting surface of a coil spring in which a displacement sensor/distance sensor is mounted in a suspension;
FIG. 2 is a schematic view of a displacement sensor/distance sensor mounted on the top surface of a leaf spring;
FIG. 3 is a schematic diagram of displacement sensors/distance sensors mounted on the mounting faces of coil springs/top faces of leaf springs in 4 suspensions of a vehicle;
fig. 4 is a schematic structural diagram of a vehicle overload detection device according to embodiment 1 of the invention;
fig. 5 is a circuit configuration diagram of embodiment 4 of the present invention.
In the figure: 1-a power supply; 2-a switch; 3-a displacement acquisition unit; 4-a control unit; 5-a display unit; 6-a coil spring; 7-a shock absorber; 8-leaf spring; 9-vehicle body bottom; 10-helical spring mounting face.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The vehicle overload monitoring device of the invention comprises:
the displacement acquisition unit is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and outputting an acquired length signal/deformation signal;
the control unit is used for receiving the length signal/deformation quantity signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received length/deformation quantity, and outputting a control signal according to a judgment result;
and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal.
Example 1:
as shown in fig. 4, in the present embodiment, the vehicle overload monitoring apparatus includes:
the displacement acquisition unit is used for acquiring the length of an elastic component in a vehicle driving system suspension in real time and outputting an acquired length signal;
the control unit is used for receiving the length signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received length and outputting a control signal according to a judgment result;
and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal.
As shown in the figures 1 and 2, a displacement acquisition unit in the vehicle overload monitoring device adopts a displacement sensor, the specific model of the displacement acquisition unit is ODSL 8/V4-45-S12, a control unit adopts a DSP controller, and a DSP chip ADSP-2101 can be specifically adopted.
In practice, coil springs are often used as spring assemblies in modern passenger car drive train suspensions (as shown in fig. 1), while steel plate suspensions are often used as spring assemblies in truck or bus drive train suspensions (as shown in fig. 2). When the vehicle is unloaded, the spring is in a natural position; when the vehicle is loaded, the spring is deformed, namely, the spring leaves the natural position, and the deformation quantity of the spring is increased along with the increase of the weight of the load, and the deformation can cause the length of the spring to change along with the change of the deformation quantity.
The coil spring and the leaf spring are shown in their unloaded positions in figures 1 and 2, respectively. In fig. 1, the length of the coil spring is the distance X from the coil spring mounting surface 10 to the underbody 9, where the distance X also represents the natural length of the coil spring; in fig. 2, the length of the leaf spring is a distance X from the top surface of the leaf spring to the underbody 9. Of course, the natural length of the spring may vary from vehicle to vehicle, for example: the spring length of the drive train suspension of the waffle automobile is 300mm, and the spring length of the drive train suspension of the soar automobile is 400 mm.
In this embodiment, the displacement sensor is used to measure the length of the elastic component in the vehicle driveline suspension in real time, i.e., to measure the length of the coil spring and leaf spring in real time. The displacement sensor may be mounted on the coil spring mounting surface 10 or on the top surface of the leaf spring.
Wherein including the judgment module in the control unit, the judgement module is stored with overweight critical length and the high-risk critical length that have corresponding relation with the loading capacity of vehicle, including safety indicator, warning pilot lamp and high-risk pilot lamp in the display element, the judgment module is used for receiving the length signal of displacement sensor output to compare received length and overweight critical length and high-risk critical length in it, export different control signal according to different comparative results again in order to open or close safety indicator, warning pilot lamp and the high-risk pilot lamp in the display element: when the comparison result is that the received length is greater than or equal to the overweight critical length, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp and the high-risk indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; when the comparison result is that the received length is smaller than the overweight critical length and is greater than or equal to the high-risk critical length, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and outputting a warning signal to turn on the warning indicator lamp; and when the comparison result shows that the received length is smaller than the high-risk critical length, judging that the vehicle is seriously overloaded, controlling to turn off the safety indicator lamp and the warning indicator lamp, and outputting a high-risk signal to turn on the high-risk indicator lamp.
Wherein, safe pilot lamp, warning pilot lamp and high-risk pilot lamp open and show when lighting for different colours: the safety indicator light is displayed as green, and the warning indicator light is displayed as yellow; the high-risk indicator light is displayed in red, so that a driver can better distinguish whether the vehicle is overloaded or not and the overload degree.
In the process of judging whether the vehicle is overloaded or not, when the display unit displays green (namely, when the safety indicator lamp is turned on), the vehicle is indicated to be a normal load; when the display unit displays yellow (namely the warning indicator lamp is turned on), the display unit indicates that the vehicle is overloaded, and prompts a driver to unload the overweight load in real time, and when the display unit displays green again in the process of unloading the load, the display unit indicates that the overload condition of the vehicle is relieved, and the vehicle can be safely operated; when the display unit displays red (namely when the high-risk indicator lamp is turned on), the condition that the vehicle is overloaded seriously is shown, if the forced operation is carried out, adverse results can occur, a driver is prompted to unload the overweight load immediately, and in the process of unloading the load, when the display unit displays green again, the condition that the overload of the vehicle is relieved is shown, and the vehicle can be operated safely.
When the spring assembly employs a coil spring, in a general vehicle, the length X of the spring having a corresponding relationship with the load capacity of the vehicle is as follows: the normal load is more than or equal to 280mm and less than or equal to 300mm, the warning load is more than or equal to 260mm and less than 280mm, and the high-risk load is less than 260 mm. Accordingly, the overweight critical length stored in the judgment module is set to be 280mm, and the high-risk critical length is set to be 260 mm.
When the spring assembly employs a leaf spring, the length X of the spring having a corresponding relationship with the load capacity of the vehicle is as follows: normal load is more than or equal to 180mm and less than or equal to 200mm, warning load is more than or equal to 160mm and less than 180mm, and high-risk load is less than 160 mm. Accordingly, the overweight critical length stored in the judgment module is set to be 180mm, and the high-risk critical length is set to be 160 mm.
Because the motorcycle type is different, and the spring type of selection is different, therefore the length X of spring also can be different, and when the load is the same, its length X's change also can be corresponding different after the spring takes place to deform, so can set for the value of overweight critical length and high-risk critical length according to the type of the spring of specifically adopting on the vehicle in practical application, the value of overweight critical length and high-risk critical length that adopts in this embodiment is the value under the ordinary condition only.
As shown in fig. 3, in this embodiment, the distance sensor may be mounted on the mounting surface of the coil spring/the top surface of the leaf spring in the 4 suspensions of the vehicle, so that the length X of the spring collected by the distance sensor is more accurate. Of course, the distance sensors may be mounted on only one, two, or three suspension frames, the number of the distance sensors mounted on the wheels is different, the accuracy of the length X value of the spring collected by the distance sensors is different, and the accuracy of the controller in determining whether the vehicle is overloaded is also different.
An automobile adopting the vehicle overload detection device of the embodiment is provided.
Example 2:
this example differs from example 1 in that: the display unit is different from the judgment unit.
In this embodiment, the display unit includes a warning indicator and a safety indicator, the determining module stores an overweight critical length corresponding to the load capacity of the vehicle, and the determining module is configured to receive the length signal output by the displacement collecting unit, compare the received length with the overweight critical length therein, and output different control signals according to different comparison results to turn on or turn off the warning indicator and the safety indicator in the display unit: when the comparison result shows that the received length is smaller than the overweight critical length, judging that the vehicle is overloaded, and controlling to output a warning signal to start a warning indicator lamp; and when the received length is greater than or equal to the overweight critical length according to the comparison result, judging that the vehicle is not overloaded, and controlling to output a safety signal to turn off the warning indicator lamp.
Other structures and functions in this embodiment are the same as those in embodiment 1, and are not described again here.
Example 3:
this example differs from example 1 in that: the display unit is different from the judgment unit.
In this embodiment, the display unit includes a warning indicator, the determining module stores an overweight critical length corresponding to the load capacity of the vehicle, and the determining module is configured to receive the length signal output by the displacement collecting unit, compare the received length with the overweight critical length therein, and output different control signals according to different comparison results to turn on or turn off the warning indicator in the display unit: when the comparison result shows that the received length is smaller than the overweight critical length, judging that the vehicle is overloaded, and controlling to output a warning signal to start a warning indicator lamp; and when the received length is greater than or equal to the overweight critical length according to the comparison result, judging that the vehicle is not overloaded, and controlling to output a safety signal to turn off the warning indicator lamp or not to turn on the warning indicator lamp.
Other structures and functions in this embodiment are the same as those in embodiment 1, and are not described again here.
Example 4:
in this embodiment, the vehicle overload monitoring device includes:
the displacement acquisition unit is used for acquiring the deformation quantity of an elastic component in a vehicle driving system suspension in real time and outputting an acquired deformation quantity signal;
the control unit is used for receiving the deformation quantity signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received deformation quantity, and outputting a control signal according to a judgment result;
and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal.
Wherein, the displacement acquisition unit adopts a distance sensor. The distance sensor is used for measuring the deformation of an elastic component in a vehicle driving system suspension in real time and outputting a deformation signal obtained by collection to the control unit;
in this embodiment, the control unit includes a determination module, the determination module stores an amount of deformation and an amount of high-risk deformation that have a corresponding relationship with a load capacity of the vehicle, the display unit includes a safety indicator, a warning indicator and a high-risk indicator, the determination module is configured to receive a deformation signal output by the distance sensor, compare the received deformation with the amount of deformation and the amount of high-risk deformation in the distance sensor, and output different control signals according to different comparison results to turn on or off the safety indicator, the warning indicator and the high-risk indicator in the display unit:
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp and the high-risk indicator lamp, and outputting a safety signal to turn on the safety indicator lamp; when the comparison result shows that the received deformation is greater than or equal to the overweight deformation and less than the high-risk deformation, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and outputting a warning signal to turn on the warning indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the high-risk deformation, judging that the vehicle is seriously overloaded, controlling to turn off the safety indicator lamp and the warning indicator lamp, and outputting a high-risk signal to turn on the high-risk indicator lamp.
Wherein, safe pilot lamp, warning pilot lamp and high-risk pilot lamp open and show when lighting for different colours: the safety indicator light is displayed as green, and the warning indicator light is displayed as yellow; the high-risk indicator light is displayed in red, so that a driver can better distinguish whether the vehicle is overloaded or not and the overload degree.
In the process of judging whether the vehicle is overloaded or not, when the display unit displays green (namely, when the safety indicator lamp is turned on), the vehicle is indicated to be a normal load; when the display unit displays yellow (namely the warning indicator lamp is turned on), the display unit indicates that the vehicle is overloaded, and prompts a driver to unload the overweight load in real time, and when the display unit displays green again in the process of unloading the load, the display unit indicates that the overload condition of the vehicle is relieved, and the vehicle can be safely operated; when the display unit displays red (namely when the high-risk indicator lamp is turned on), the condition that the vehicle is overloaded seriously is shown, if the forced operation is carried out, adverse results can occur, a driver is prompted to unload the overweight load immediately, and in the process of unloading the load, when the display unit displays green again, the condition that the overload of the vehicle is relieved is shown, and the vehicle can be operated safely.
When the spring assembly employs a coil spring or a leaf spring, in a general vehicle, the amount of deformation of the spring having a corresponding relationship with the load capacity of the vehicle is as follows: the normal load is more than 0mm and less than 20mm, the warning load is more than or equal to 20mm and less than 40mm, and the high-risk load is more than or equal to 40 mm. Accordingly, the overweight deformation quantity stored in the judgment module is set to be 20mm, and the high-risk deformation quantity is set to be 40 mm.
Of course, because the vehicle types are different, the selected spring types are different, and when the loads are the same, the deformation amounts of the springs of different types are also different, and the overweight deformation amount and the high-risk deformation amount can be set according to the type of the spring specifically adopted on the vehicle in practical use, and the values of the overweight deformation amount and the high-risk deformation amount in the embodiment are only values under normal conditions.
Example 5:
as shown in fig. 5, in this embodiment, the vehicle overload monitoring device includes a displacement collecting unit, a control unit, a display unit, and a power supply 1, where the displacement collecting unit, the control unit, the display unit, and the power supply 1 form a closed circuit.
The displacement acquisition unit adopts a resistance type displacement sensor, and the resistance type displacement sensor is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and converting the length/deformation of the elastic component into a resistance value in a closed loop corresponding to the length/deformation so as to change the total resistance in the closed loop, wherein the change of the total resistance causes the change of current in the closed loop.
The control unit comprises a current acquisition module. The current acquisition module is used for acquiring the current in the closed loop in real time and outputting the acquired current signal; the current amplification module is used for receiving the current signal acquired by the current acquisition unit in real time, amplifying the received current and outputting the amplified current signal; the judging module is used for receiving the amplified current signal output by the current amplifying module, judging whether the vehicle is in an overload state according to the amplified current, and outputting a control signal according to a judgment result.
And the display unit is used for receiving the control signal output by the judgment module and displaying according to the received control signal.
The judgment module stores overweight critical current and high-risk critical current which have corresponding relation with the load capacity of the vehicle, the display unit comprises a safety indicator lamp, a warning indicator lamp and a high-risk indicator lamp, the judgment module receives an amplified current signal output by the current amplification module, compares the amplified current signal with the overweight critical current and the high-risk critical current in the judgment module, and outputs different control signals according to a comparison result to turn on or off the safety indicator lamp, the warning indicator lamp and the high-risk indicator lamp:
when the comparison result shows that the received current is greater than or equal to the overweight critical current, judging that the vehicle is not overloaded, controlling to turn off the warning indicator lamp and the high-risk indicator lamp, and turning on the safety indicator lamp; when the comparison result shows that the received current is smaller than the overweight critical current and larger than or equal to the high-risk critical current, judging that the vehicle is overloaded, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and turning on the warning indicator lamp; and when the comparison result shows that the received current is less than the high-risk critical current, judging that the vehicle is seriously overloaded, controlling to turn off the safety indicator lamp and the warning indicator lamp, and turning on the high-risk indicator lamp.
Wherein, safe pilot lamp, warning pilot lamp and high-risk pilot lamp open and show when lighting for different colours: the safety indicator light is displayed as green, and the warning indicator light is displayed as yellow; the high-risk indicator light is displayed in red, so that a driver can better distinguish whether the vehicle is overloaded or not and the overload degree. The safety indicator lamp, the warning indicator lamp and the high-risk indicator lamp are light emitting diodes.
In the process of judging whether the vehicle is overloaded or not, when the display unit displays green, the vehicle is indicated to be a normal load; when the display unit displays yellow, the display unit indicates that the vehicle is overloaded, and prompts a driver to unload the overweight load in real time, and when the display unit displays green again in the process of unloading the load, the display unit indicates that the overload condition of the vehicle is relieved, and the vehicle can be safely operated; when the display unit displays red, the vehicle is indicated to be seriously overloaded, adverse consequences can occur if forced operation is carried out, a driver is prompted to immediately unload the overweight load, and when the display unit displays green again in the process of unloading the overweight load, the situation that the overload of the vehicle is relieved is indicated, and the vehicle can be safely operated.
In the embodiment, the displacement acquisition unit adopts a resistance type distance sensor, and the specific model of the displacement acquisition unit is ZYJ 1-WBD-50B; the current amplification module adopts a current amplifier, and the specific model of the current amplifier is CF 741.
The vehicle overload monitoring device can further comprise a switch to control the on and off of the closed circuit in real time.
When the spring assembly employs a coil spring, in a general vehicle, the amplified current in the closed circuit having a corresponding relationship with the load capacity of the vehicle is as follows: normal load is less than or equal to 0.2A and less than or equal to 0.22A, warning load is less than 0.2A and less than 0.02A when the load is high-risk and less than 0.02A. Accordingly, the overweight critical current and the high-risk critical current stored in the judgment module are set to be 0.2A and 0.02A respectively.
When the spring assembly employs a leaf spring, the amplified current in the closed loop having a corresponding relationship with the load capacity of the vehicle is as follows: normal load is not less than 0.1A and not more than 0.11A, warning load is not less than 0.01A and not more than 0.1A, and high-risk load is less than 0.01A. Accordingly, the overweight critical current and the high-risk critical current stored in the judgment module are set to be 0.1A and 0.01A respectively.
Of course, in this embodiment, the values of the overweight critical current and the high-risk critical current may be specifically set by integrating a specific vehicle model, different distance sensors, or a current amplification module, and the values in this embodiment are only general values in a normal case.
In practice, in order to make the driver visually see whether the vehicle is normal, overloaded or heavily overloaded, it is preferable to place a nameplate label corresponding thereto beside each indicator light in the display unit: when the safety indicator lamp in the display unit displays green, the vehicle is indicated to be a normal load, and a nameplate beside the safety indicator lamp is marked with 'normal'; when the warning indicator lamp in the display unit displays yellow, the vehicle is overloaded, and the nameplate beside the warning indicator lamp is marked with 'overload'; when the high-risk indicator lamp in the display unit displays red, the vehicle is indicated to be seriously overloaded, and the nameplate beside the high-risk indicator lamp is marked with 'serious overload'. Or the nameplate is directly marked with' when the display unit displays green, the vehicle is in normal load; when the display unit displays yellow, the vehicle is already overloaded; when the display unit displays red, it indicates that the vehicle has been heavily overloaded. "
An automobile adopting the vehicle overload detection device of the embodiment is provided.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (12)
1. A vehicle overload monitoring device, comprising:
the displacement acquisition unit is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and outputting an acquired length signal/deformation signal;
the control unit is used for receiving the length signal/deformation quantity signal output by the displacement acquisition unit, judging whether the vehicle is in an overload state according to the received length/deformation quantity, and outputting a control signal according to a judgment result;
and the display unit is used for receiving the control signal output by the control unit and displaying according to the received control signal.
2. The vehicle overload monitoring device according to claim 1, wherein the control unit includes a determination module, the determination module stores an overload critical length/overload deformation amount corresponding to a load capacity of the vehicle, and the determination module is configured to receive the length signal/deformation amount signal output by the displacement acquisition unit, compare the received length/deformation amount with the overload critical length/overload deformation amount therein, and output different control signals according to a comparison result.
3. The vehicle overload monitoring device according to claim 2, wherein the display unit includes a warning indicator, and the determining module outputs different control signals to turn on or off the warning indicator in the display unit according to different comparison results:
when the comparison result shows that the received length is smaller than the overweight critical length, controlling to output a warning signal to start a warning indicator lamp; when the comparison result is that the received length is greater than or equal to the overweight critical length, controlling to output a safety signal to turn off the warning indicator lamp or not to turn on the warning indicator lamp; or,
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, controlling to output a safety signal to turn off the warning indicator lamp or not to turn on the warning indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the overweight deformation, controlling to output an alert signal to turn on an alert indicator lamp.
4. The vehicle overload monitoring device according to claim 2, wherein the display unit includes a warning indicator light and a safety indicator light, and the determining module outputs different control signals to turn on or off the warning indicator light and the safety indicator light in the display unit according to different comparison results:
when the comparison result is that the received length is greater than or equal to the overweight critical length, controlling to turn off the warning indicator lamp and outputting a safety signal to turn on the safety indicator lamp; when the comparison result shows that the received length is smaller than the overweight critical length, the safety indicator lamp is controlled to be turned off, and an alert signal is output to turn on the alert indicator lamp; or,
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, controlling to turn off the warning indicator lamp and outputting a safety signal to turn on the safety indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the overweight deformation, controlling to turn off the safety indicator lamp and output an alert signal to turn on the alert indicator lamp.
5. The vehicle overload monitoring device according to claim 4, wherein the spring assembly is a coil spring, the overload critical length stored in the judgment module is 280mm, and the overload deformation amount is 20 mm; the spring assembly is a steel plate spring, the overweight critical length stored in the judgment module is 180mm, and the overweight deformation amount is 20 mm.
6. The vehicle overload monitoring device according to claim 4, wherein the display unit further includes a high-risk indicator, the determination module further stores a high-risk critical length/high-risk deformation amount, the determination module receives the length signal/deformation amount signal output by the displacement acquisition unit, compares the received length with the overweight critical length value, the high-risk critical length/overweight deformation amount, and the high-risk deformation amount therein, and outputs different control signals according to the comparison result:
when the comparison result is that the received length is greater than or equal to the overweight critical length, controlling to turn off the warning indicator lamp and the high-risk indicator lamp and outputting a safety signal to turn on the safety indicator lamp; when the comparison result is that the received length is smaller than the overweight critical length and is greater than or equal to the high-risk critical length, controlling to turn off the safety indicator lamp and the high-risk indicator lamp and outputting an alert signal to turn on the alert indicator lamp; when the comparison result is that the received length is smaller than the high-risk critical length, controlling to turn off the safety indicator lamp and the warning indicator lamp, and outputting a high-risk signal to turn on the high-risk indicator lamp;
when the comparison result shows that the received deformation amount is smaller than the overweight deformation amount, controlling to turn off the warning indicator lamp and the high-risk indicator lamp and outputting a safety signal to turn on the safety indicator lamp; when the comparison result is that the received deformation amount is greater than or equal to the overweight deformation amount and less than the high-risk deformation amount, controlling to turn off the safety indicator lamp and the high-risk indicator lamp, and outputting an alert signal to turn on the alert indicator lamp; and when the comparison result shows that the received deformation is greater than or equal to the high-risk deformation, controlling to turn off the safety indicator lamp and the warning indicator lamp and outputting a high-risk signal to turn on the high-risk indicator lamp.
7. The vehicle overload monitoring device according to claim 6, wherein the spring assembly is a coil spring, the critical length of overweight stored in the judgment module is 280mm, the critical length of high risk is 260mm, the amount of overweight deformation is 20mm, and the amount of high risk deformation is 40 mm; the spring assembly adopts a steel plate spring, the overweight critical length stored in the judgment module is 180mm, the high-risk critical length is 160mm, the overweight deformation amount is 20mm, and the high-risk deformation amount is 40 mm.
8. The vehicle overload monitoring device according to any one of claims 1 to 7, wherein the displacement acquisition unit is a displacement sensor or a distance sensor, and the control unit is a DSP controller.
9. A vehicle overload monitoring device is characterized by comprising a displacement acquisition unit, a control unit, a display unit and a power supply, wherein the displacement acquisition unit, the control unit, the display unit and the power supply form a closed circuit,
the displacement acquisition unit adopts a resistance type displacement sensor which is used for acquiring the length/deformation of an elastic component in a vehicle driving system suspension in real time and converting the length/deformation of the elastic component into a resistance value in a closed loop corresponding to the length/deformation so as to change the total resistance in the closed loop,
the control unit comprises a current acquisition module and a judgment module, and the current acquisition module is used for acquiring the current in the closed loop in real time and outputting the acquired current signal; the judging module is used for receiving the current signal collected by the current collecting module, judging whether the vehicle is in an overload state according to the received current signal and outputting a control signal according to a judgment result,
and the display unit is used for receiving the control signal output by the judgment module and displaying according to the received control signal.
10. The vehicle overload monitoring device according to claim 9, wherein the determining unit stores an overload critical current corresponding to a load of the vehicle, the display unit includes a warning indicator, and the determining unit receives the current signal collected by the current collecting module, compares the current signal with the overload critical current in the current signal, and outputs different control signals to turn on or off the warning indicator according to the comparison result.
11. The vehicle overload monitoring device according to claim 10, wherein the display unit further includes a safety indicator and a high-risk indicator, the determination module further stores a high-risk critical current, the determination module receives the current signal collected by the current collection module, compares the current signal with the overweight critical current and the high-risk critical current in the determination module, and outputs different control signals according to a comparison result to turn on or off the safety indicator, the warning indicator and the high-risk indicator respectively.
12. A vehicle comprising a vehicle overload monitoring apparatus according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104178989A CN102496297A (en) | 2011-12-09 | 2011-12-09 | Vehicle overload monitoring device and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104178989A CN102496297A (en) | 2011-12-09 | 2011-12-09 | Vehicle overload monitoring device and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102496297A true CN102496297A (en) | 2012-06-13 |
Family
ID=46188116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104178989A Pending CN102496297A (en) | 2011-12-09 | 2011-12-09 | Vehicle overload monitoring device and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102496297A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837075A (en) * | 2014-03-21 | 2014-06-04 | 清华大学 | Dynamic displacement collecting system based on vehicle-mounted CAN bus |
| CN110232824A (en) * | 2019-05-27 | 2019-09-13 | 武汉理工大学 | A kind of non-contact vehicle overload identification early warning system |
| CN111220248A (en) * | 2019-12-03 | 2020-06-02 | 恒大智慧科技有限公司 | Weight-based train overload detection method and device and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257451A (en) * | 2004-03-11 | 2005-09-22 | Sumitomo Electric Ind Ltd | On-vehicle weight detection device |
| CN2784242Y (en) * | 2004-12-30 | 2006-05-31 | 武汉虹信通信技术有限责任公司 | Overload alarm of power truck |
| EP1950539A2 (en) * | 2007-01-29 | 2008-07-30 | Continental Automotive GmbH | Overload detection system |
| CN201344836Y (en) * | 2008-12-17 | 2009-11-11 | 重庆市北碚区朝阳小学校 | Vehicle overloading warning device |
| CN201597461U (en) * | 2009-11-12 | 2010-10-06 | 北汽福田汽车股份有限公司 | Device for preventing vehicle overloading and vehicle comprising the same |
-
2011
- 2011-12-09 CN CN2011104178989A patent/CN102496297A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005257451A (en) * | 2004-03-11 | 2005-09-22 | Sumitomo Electric Ind Ltd | On-vehicle weight detection device |
| CN2784242Y (en) * | 2004-12-30 | 2006-05-31 | 武汉虹信通信技术有限责任公司 | Overload alarm of power truck |
| EP1950539A2 (en) * | 2007-01-29 | 2008-07-30 | Continental Automotive GmbH | Overload detection system |
| CN201344836Y (en) * | 2008-12-17 | 2009-11-11 | 重庆市北碚区朝阳小学校 | Vehicle overloading warning device |
| CN201597461U (en) * | 2009-11-12 | 2010-10-06 | 北汽福田汽车股份有限公司 | Device for preventing vehicle overloading and vehicle comprising the same |
Non-Patent Citations (2)
| Title |
|---|
| 尹福炎: "电阻应变片与应变传递原理研究", 《衡器》 * |
| 杨忠: "车辆动态称重系统的设计", 《交通科技与经济》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837075A (en) * | 2014-03-21 | 2014-06-04 | 清华大学 | Dynamic displacement collecting system based on vehicle-mounted CAN bus |
| CN103837075B (en) * | 2014-03-21 | 2017-03-29 | 清华大学 | Dynamic displacement acquisition system based on vehicle-mounted CAN bus |
| CN110232824A (en) * | 2019-05-27 | 2019-09-13 | 武汉理工大学 | A kind of non-contact vehicle overload identification early warning system |
| CN111220248A (en) * | 2019-12-03 | 2020-06-02 | 恒大智慧科技有限公司 | Weight-based train overload detection method and device and readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102756686A (en) | Method and device for early alarming of side dumping of vehicle | |
| CN203981255U (en) | A kind of vehicle-mounted weighing system | |
| CN203093756U (en) | Automobile overloading control system | |
| CN201637475U (en) | Construction traffic side-tilting early-warning device | |
| CN203094049U (en) | Automobile hand brake force warning system | |
| CN105984417A (en) | Vehicular anti-rollover dynamic monitoring, early warning and active intervention control method and control system | |
| CN202471205U (en) | Dynamic vehicle load detection device | |
| CN102496297A (en) | Vehicle overload monitoring device and automobile | |
| CN100514028C (en) | Automatic monitor of truck load balance and controlling method thereof | |
| CN103922245B (en) | Fork truck sensory perceptual system controller and method thereof | |
| CN202847627U (en) | Dump truck side-rollover early warning device | |
| CN203611660U (en) | Tire pressure monitoring device for vehicle and vehicle adopting same | |
| CN210513376U (en) | Weighing and measuring device for logistics container truck | |
| CN104139733B (en) | Overload protective device and the automobile with this protection system | |
| CN202029798U (en) | Vehicle rollover early-warning system | |
| US9969327B2 (en) | Vehicle improper load sensor | |
| CN201932053U (en) | Tipping prevention device for tip-back dump truck | |
| CN112248738A (en) | Load monitoring system and method for commercial vehicle electric control air suspension | |
| CN108320523A (en) | Safety detecting system for vehicle | |
| CN203819048U (en) | Vehicle overload non-working system | |
| CN210293413U (en) | Vehicle-mounted self-weight device | |
| CN201633728U (en) | Intelligent vehicle-mounted overload safety monitoring system | |
| CN203100855U (en) | Automotive load capacity self-testing device | |
| CN212963627U (en) | Truck overload monitoring and controlling device | |
| CN109916536A (en) | Temperature monitoring early warning system and method in commercial vehicle wheel hub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120613 |