CN102496297A - Vehicle overload monitoring device and automobile - Google Patents
Vehicle overload monitoring device and automobile Download PDFInfo
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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 present invention relates to a kind of overload of vehicle monitoring device that can serve as warning to overload and the automobile that adopts this overload of vehicle monitoring device.
Background technology
In China, the overload phenomenon of vehicle " big ton small tenon " is very serious at present, and overloaded vehicle is called " weapon of predation life; the natural enemy of road equipment "; Not only cause the overload of road, also cause traffic hazard easily, cause vehicle to damage and personal injury; Bring heavy losses for the country and people's property; Its ubiquity and harmfulness have become a significant problem of China current communications and transportation aspect, therefore, take measures to seem very necessary with the overload condition of reminding driver's current vehicle.
Notification number is to disclose " a kind of vehicle overloading automatic alarm device " in the Chinese utility model patent of CN201173812Y, and monitor vehicle overload situation that can be real-time has certain feasibility.Yet; This device need send information through GSM or cdma network and receive module to remote terminal after judging automobile overload, after remote terminal reception module receives information; Send vehicle lay-off through network equally and instruct to intelligent master control module, Control of Automobile stops to go.It is thus clear that there is following problem in this device: the first, need through the approach of network, thereby stability and real-time can receive the restriction of network stabilization and speed as transfer instruction; The second, complex structure, cost is higher; The 3rd, whether this device receives the module Control of Automobile by remote terminal after judging automobile overload stops to go, and can not in loading the weight process, the real-time reminding driver overload, thereby can not fundamentally solve overload problems.
Summary of the invention
Technical matters to be solved by this invention is to the above-mentioned deficiency that exists in the prior art, proposes a kind of overload of vehicle monitoring device that can serve as warning to overload and the automobile that adopts this overload of vehicle monitoring device, and it is simple in structure, convenient and easy.
Solving the technical scheme that technical matters of the present invention adopted is that this overload of vehicle monitoring device comprises:
The displacement acquisition unit, be used for real-time collection vehicle drive be suspension elastic parts length/deformation quantity and with the length signals that collects/deformation quantity signal output;
Control module is used to receive length signals/deformation quantity signal that the displacement acquisition unit is exported, and judges according to the length/deformation quantity that receives whether vehicle is in overload condition, again according to judged result output control signal;
Display unit is used to receive the control signal that control module is exported, and shows according to the said control signal that receives.
Preferably; Include judge module in the said control module; Store the overweight critical length/overweight deformation quantity that has corresponding relation with the dead weight capacity of vehicle in the said judge module; Said judge module is used to receive the length signals/deformation quantity signal of displacement acquisition unit output, and received length/deformation quantity and the overweight critical length/overweight deformation quantity in it are compared, again according to comparative result output Different control signal.
Wherein, include the warning pilot lamp in the said display unit, judge module is exported the Different control signal to open or to close the warning pilot lamp in the display unit according to different comparative results:
When comparative result is the length that receives during less than overweight critical length, judge overload of vehicle, control output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading, control output safety signal is to close the warning pilot lamp or the warning pilot lamp is not opened in control; Perhaps,
When comparative result is the deformation quantity that receives during less than overweight deformation quantity, judge the vehicle non-overloading, control output safety signal is to close the warning pilot lamp or the warning pilot lamp is not opened in control; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity, judge overload of vehicle, control output restricted speed signal is to open the warning pilot lamp.
Further preferably, include warning pilot lamp and green indicating lamp in the said display unit, judge module is exported the Different control signal to open or to close warning pilot lamp and the green indicating lamp in the display unit according to different comparative results:
When comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading, the warning pilot lamp is closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received length during less than overweight critical length, judge overload of vehicle, control closed safe pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; Perhaps,
When comparative result is a received deformation quantity during less than overweight deformation quantity, judge the vehicle non-overloading, the warning pilot lamp is closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity, judge overload of vehicle, control closed safe pilot lamp, and the output restricted speed signal is to open the warning pilot lamp.
Wherein, said spring assembly adopts volute spring, and the overweight critical length of then storing in the judge module is 280mm, and overweight deformation quantity is 20mm; Said spring assembly adopts leaf spring, and the overweight critical length of then storing in the judge module is 180mm, and overweight deformation quantity is 20mm.
More preferably; Also include high-risk pilot lamp in the said display unit; Also store high-risk critical length/high-risk deformation quantity in the said judge module; After said judge module receives the length signals/deformation quantity signal of displacement acquisition unit output, received length and the overweight critical length value in it and high-risk critical length/overweight deformation quantity and high-risk deformation quantity are compared, export the Different control signal according to comparative result again:
When comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading, warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received length during less than overweight critical length and more than or equal to high-risk critical length, judge overload of vehicle, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during less than high-risk critical length, judge that vehicle seriously overloads, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp;
When comparative result is a received deformation quantity during less than overweight deformation quantity, judge the vehicle non-overloading, warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity and less than high-risk deformation quantity, judge overload of vehicle, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result is a received deformation quantity during more than or equal to high-risk deformation quantity, judge that vehicle seriously overloads, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp.
Wherein, said spring assembly adopts volute spring, and the overweight critical length of then storing in the judge module is 280mm, and high-risk critical length is 260mm, and overweight deformation quantity is 20mm, and high-risk deformation quantity is 40mm; Said spring assembly adopts leaf spring, and the overweight critical length of then storing in the judge module is 180mm, and high-risk critical length is 160mm, and overweight deformation quantity is 20mm, and high-risk deformation quantity is 40mm.
Preferably, said displacement acquisition unit adopts displacement transducer or range sensor, and said control module adopts dsp controller.
It is displacement transducer or the employing resistance-type range sensor of ODSL 8/V4-45-S12 that said displacement acquisition unit adopts model, and said control module adopts dsp chip ADSP-2101, and said display unit adopts light emitting diode.
A kind of overload of vehicle monitoring device comprises displacement acquisition unit, control module, display unit and power supply, and displacement acquisition unit, control module, display unit and power supply constitute a closed circuit,
Said displacement acquisition unit adopts the resistance-type displacement transducer; Said resistance-type displacement transducer is used for length/deformation quantity that real-time collection vehicle drives the elastic parts that is suspension; And the length/deformation quantity of said elastic parts is converted into resistance in the corresponding with it closed-loop path so that the all-in resistance in the said closed-loop path changes
Include current acquisition module and judge module in the said control module, said current acquisition module is used for gathering in real time the electric current of said closed-loop path, and with the current signal output that collects; Said judge module is used for the current signal that the received current acquisition module collects, and judges according to the current signal that receives whether vehicle is in overload condition, again according to judged result output control signal,
Display unit is used to receive the control signal that judge module is exported, and shows according to the said control signal that receives.
Wherein, Store the overweight critical current that has corresponding relation with the dead weight capacity of vehicle in the said judging unit; Include the warning pilot lamp in the said display unit; Behind the current signal that said judging unit received current acquisition module collects, it and overweight critical current in it are compared, again according to comparative result output Different control signal to open or to close the warning pilot lamp.
Preferably; Also include green indicating lamp and high-risk pilot lamp in the said display unit; Also store high-risk critical current in the said judge module; Behind the current signal that said judge module received current collection module collects, it and overweight critical current and high-risk critical current in it are compared, open respectively or closed safe pilot lamp, warning pilot lamp and high-risk pilot lamp according to comparative result output Different control signal again.
Preferably, said spring assembly adopts volute spring, and the overweight critical current of storing in the judge module is 0.2A, and high-risk critical current is 0.02A; Said spring assembly adopts leaf spring, and the overweight critical current of storing in the judge module is 0.1A, and high-risk critical current is 0.01A.
A kind of automobile that adopts above-mentioned overload of vehicle monitoring device.
The invention has the beneficial effects as follows: can judge according to the vehicle loading situation whether vehicle loads in real time, and under the situation of overload, feed back the overload degree in real time; And the order of severity that will whether overload and overload shows through display unit; With the loading situation of real-time reminding driver vehicle, whether be that safe bearing load still needs suitably unloading load, its operability and real-time are stronger; And it is simple in structure, convenient and easy.
Description of drawings
Fig. 1 is the structural representation that displacement transducer/range sensor is installed on the helical spring installed surface in the suspension;
Fig. 2 is that displacement transducer/range sensor is installed on the structural representation on the end face of leaf spring;
Fig. 3 is the synoptic diagram that displacement transducer/range sensor all is installed on the end face of the helical spring installed surface/leaf spring in 4 suspensions of vehicle;
Fig. 4 is the structural representation of the embodiment of the invention 1 overload of vehicle pick-up unit;
Fig. 5 is the circuit structure diagram of the embodiment of the invention 4.
Among the figure: the 1-power supply; The 2-switch; 3-displacement acquisition unit; The 4-control module; The 5-display unit; The 6-volute spring; The 7-vibroshock; The 8-leaf spring; The 9-body bottom; 10-volute spring installed surface.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with accompanying drawing and embodiment.
Overload of vehicle monitoring device of the present invention comprises:
The displacement acquisition unit, be used for real-time collection vehicle drive be suspension elastic parts length/deformation quantity and with the length signals that collects/deformation quantity signal output;
Control module is used to receive length signals/deformation quantity signal that the displacement acquisition unit is exported, and judges according to the length/deformation quantity that receives whether vehicle is in overload condition, again according to judged result output control signal;
Display unit is used to receive the control signal that control module is exported, and shows according to the said control signal that receives.
Embodiment 1:
As shown in Figure 4, in the present embodiment, the overload of vehicle monitoring device comprises:
The displacement acquisition unit, be used for real-time collection vehicle drive be suspension elastic parts length and with the length signals output that collects;
Control module is used to receive the length signals that the displacement acquisition unit is exported, and judges according to the length that receives whether vehicle is in overload condition, again according to judged result output control signal;
Display unit is used to receive the control signal that control module is exported, and shows according to the said control signal that receives.
Like Fig. 1, shown in 2, the displacement acquisition unit in the overload of vehicle monitoring device of the present invention adopts displacement transducer, and its concrete model is ODSL 8/V4-45-S12, and control module adopts dsp controller, specifically can adopt dsp chip ADSP-2101.
In practice, it is that elastic parts in the suspension adopts volute spring (as shown in Figure 1) more that Modern Car drives, and cargo vehicle or motorbus to drive be that elastic parts in the suspension adopts steel plate suspension (as shown in Figure 2) more.When vehicle was non-loaded, spring was in physical slot; When vehicle had load, deformation can take place in spring, and promptly spring has left physical slot, and along with the weight of load increases, the deformation quantity of spring can strengthen, and this deformation meeting makes self length of spring change thereupon.
Show volute spring and leaf spring residing position when non-loaded among Fig. 1,2 respectively.Among Fig. 1, helical spring length is the distance X of volute spring installed surface 10 to body bottom 9, and the distance X is here also represented helical spring natural length; Among Fig. 2, the length of leaf spring is the distance X of the end face of leaf spring to body bottom 9.Certainly, vehicle is different, and the natural length of spring also can change, such as: the driving of Vios automobile is that the spring length of suspension is 300mm, and the driving of Sagitar automobile is that the spring length of suspension is 400mm.
In the present embodiment, displacement transducer is used for the length that real-time measuring vehicle drives the elastic parts that is suspension, promptly is used for measuring in real time the length of volute spring and leaf spring.Displacement transducer can be installed on the volute spring installed surface 10 or the end face of leaf spring on.
Include judge module in the wherein said control module; Store the overweight critical length and the high-risk critical length that have corresponding relation with the dead weight capacity of vehicle in the said judge module; Include green indicating lamp, warning pilot lamp and high-risk pilot lamp in the said display unit; Said judge module is used to receive the length signals of displacement transducer output; And overweight critical length and the high-risk critical length in received length and its compared, again according to different comparative result output Different control signals to open or to close green indicating lamp, warning pilot lamp and the high-risk pilot lamp in the display unit: when comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading; Warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received length during less than overweight critical length and more than or equal to high-risk critical length, judge overload of vehicle, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result when being received length less than said high-risk critical length, judge that vehicle seriously overloads, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp.
Wherein, green indicating lamp, warning pilot lamp and high-risk pilot lamp are opened and be shown as various colors when lighting: green indicating lamp is shown in green, and the warning pilot lamp is shown as yellow; High-risk pilot lamp is shown in red, whether overloads to make things convenient for the driver to distinguish vehicle better, and the degree of overload.
In judging whether overload process of vehicle, when display unit shows green (when green indicating lamp is opened), the expression vehicle is a normal load; When display unit shows yellow (when guarding against the pilot lamp unlatching); The expression vehicle overloads; The prompting human pilot will unload overweight load in real time, in unloading loading process, when display unit shows green once more; Explain that vehicle removed the situation of overload, vehicle can safe operation; When the display unit exhibit red (when high-risk pilot lamp is opened), the expression vehicle is seriously overload, if force operation; Adverse consequences may take place; The prompting human pilot will unload overweight load immediately, in unloading loading process, when display unit shows green once more; Explain that vehicle removed the situation of overload, vehicle can safe operation.
When spring assembly adopted volute spring, in general vehicle, the situation of length X of spring that has corresponding relation with the dead weight capacity of vehicle was following: 280mm≤normal load≤300mm, 260mm≤warning load＜280mm, high-risk load＜260mm.In view of the above, setting the overweight critical length of storing in the judge module is 280mm, and high-risk critical length is 260mm.
When spring assembly adopted leaf spring, the situation of length X of spring that has corresponding relation with the dead weight capacity of vehicle was following: 180mm≤normal load≤200mm, 160mm≤warning load＜180mm, high-risk load＜160mm.In view of the above, setting the overweight critical length of storing in the judge module is 180mm, and high-risk critical length is 160mm.
Because vehicle is different; Selected types of springs is different; Thereby the length X of spring also has difference, and when load was identical, the variation of its length X also can corresponding difference after the spring generation deformation; The type of the concrete spring that adopts is set the value of overweight critical length and high-risk critical length on so can be according to vehicle in actual practicality, and the overweight critical length that adopts in the present embodiment and the value of high-risk critical length be generally value just.
As shown in Figure 3, in the present embodiment, but equal mounting distance sensor on the end face of the helical spring installed surface/leaf spring in 4 suspensions of vehicle, the length X value of the spring that collects of range sensor can be more accurate like this.Certainly; Range sensor can only be installed on the end face of the helical spring installed surface/leaf spring in, two or three suspensions; The range sensor quantity that wheel is installed is different; The degree of accuracy of the length X value of the spring that range sensor collects is different, and accuracy also can be different when judging whether vehicle overloads for controller.
A kind of automobile that adopts the overload of vehicle pick-up unit of present embodiment.
Embodiment 2:
Present embodiment is with the difference of embodiment 1: display unit and judging unit are different.
In the present embodiment; Include warning pilot lamp and green indicating lamp in the said display unit; Store the overweight critical length that has corresponding relation with the dead weight capacity of vehicle in the said judge module; Judge module is used to receive the length signals of displacement acquisition unit output, and will received length compares with overweight critical length in it, exports the Different control signal with unlatching or close warning pilot lamp and the green indicating lamp in the display unit according to different comparative results again: when comparative result is that the length that receives is during less than overweight critical length; Judge overload of vehicle, control output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading, control output safety signal is to close the warning pilot lamp.
Other structure and function are all identical with embodiment 1 in the present embodiment, repeat no more here.
Embodiment 3:
Present embodiment is with the difference of embodiment 1: display unit and judging unit are different.
In the present embodiment; Include the warning pilot lamp in the said display unit; Store the overweight critical length that has corresponding relation with the dead weight capacity of vehicle in the said judge module; Judge module is used to receive the length signals of displacement acquisition unit output, and will received length compares with overweight critical length in it, exports the Different control signal with unlatching or close the warning pilot lamp in the display unit according to different comparative results again: when comparative result is that the length that receives is during less than overweight critical length; Judge overload of vehicle, control output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during more than or equal to overweight critical length, judge the vehicle non-overloading, control output safety signal is to close the warning pilot lamp or the warning pilot lamp is not opened in control.
Other structure and function are all identical with embodiment 1 in the present embodiment, repeat no more here.
Embodiment 4:
In the present embodiment, the overload of vehicle monitoring device comprises:
The displacement acquisition unit, be used for real-time collection vehicle drive be suspension elastic parts deformation quantity and with the deformation quantity signal output that collects;
Control module is used to receive the deformation quantity signal that the displacement acquisition unit is exported, and judges according to the deformation quantity that receives whether vehicle is in overload condition, again according to judged result output control signal;
Display unit is used to receive the control signal that control module is exported, and shows according to the said control signal that receives.
Wherein, the displacement acquisition unit adopts range sensor.Range sensor is used for the deformation quantity that real-time measuring vehicle drives the elastic parts that is suspension, and exports the deformation quantity signal that collects to control module;
In the present embodiment; Include judge module in the said control module; Store the overweight deformation quantity and the high-risk deformation quantity that have corresponding relation with the dead weight capacity of vehicle in the said judge module; Include green indicating lamp, warning pilot lamp and high-risk pilot lamp in the said display unit; Said judge module is used for the deformation quantity signal of receiving range sensor output, and received deformation quantity and overweight deformation quantity and high-risk deformation quantity in it are compared, and exports the Different control signal to open or to close green indicating lamp, warning pilot lamp and the high-risk pilot lamp in the display unit according to different comparative results again:
When comparative result is a received deformation quantity during less than overweight deformation quantity, judge the vehicle non-overloading, warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity and less than high-risk deformation quantity, judge overload of vehicle, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result is a received deformation quantity during more than or equal to high-risk deformation quantity, judge that vehicle seriously overloads, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp.
Wherein, green indicating lamp, warning pilot lamp and high-risk pilot lamp are opened and be shown as various colors when lighting: green indicating lamp is shown in green, and the warning pilot lamp is shown as yellow; High-risk pilot lamp is shown in red, whether overloads to make things convenient for the driver to distinguish vehicle better, and the degree of overload.
In judging whether overload process of vehicle, when display unit shows green (when green indicating lamp is opened), the expression vehicle is a normal load; When display unit shows yellow (when guarding against the pilot lamp unlatching); The expression vehicle overloads; The prompting human pilot will unload overweight load in real time, in unloading loading process, when display unit shows green once more; Explain that vehicle removed the situation of overload, vehicle can safe operation; When the display unit exhibit red (when high-risk pilot lamp is opened), the expression vehicle is seriously overload, if force operation; Adverse consequences may take place; The prompting human pilot will unload overweight load immediately, in unloading loading process, when display unit shows green once more; Explain that vehicle removed the situation of overload, vehicle can safe operation.
When spring assembly adopted volute spring or leaf spring, in general vehicle, the situation of deformation quantity of spring that has corresponding relation with the dead weight capacity of vehicle was following: 0mm＜normal load＜20mm, 20mm≤warning load＜40mm, high-risk load>=40mm.In view of the above, setting the overweight deformation quantity of storing in the judge module is 20mm, and high-risk deformation quantity is 40mm.
Certainly; Because vehicle is different; Selected types of springs is different, and when load was identical, the deformation quantity of dissimilar springs also had difference; The type of the concrete spring that adopts is set overweight deformation quantity and high-risk deformation quantity on can be according to vehicle in actual practicality, the value of overweight deformation quantity and high-risk deformation quantity generally value just in the present embodiment.
Embodiment 5:
As shown in Figure 5, in the present embodiment, this overload of vehicle monitoring device comprises displacement acquisition unit, control module, display unit and power supply 1, and wherein displacement acquisition unit, control module, display unit and power supply 1 constitute a closed circuit.
Said displacement acquisition unit adopts the resistance-type displacement transducer; Said resistance-type displacement transducer is used for length/deformation quantity that real-time collection vehicle drives the elastic parts that is suspension; And the length/deformation quantity of said elastic parts is converted into resistance in the corresponding with it closed-loop path so that the all-in resistance in the said closed-loop path changes, all-in resistance changes and causes the change in current in the closed-loop path.
Include the current acquisition module in the said control module.Electric current amplification module and judge module, said current acquisition module are used for gathering in real time the electric current of said closed-loop path, and with the current signal output that collects; Said electric current amplification module is used for receiving in real time the current signal that said current acquisition unit collects, and the said electric current that receives is amplified, the current signal output after will amplifying again; Said judge module is used for the amplified current signal of received current amplification module output, and judges according to the electric current after amplifying whether vehicle is in overload condition, again according to judged result output control signal.
Display unit is used to receive the control signal that judge module is exported, and shows according to the said control signal that receives.
Wherein, Store the overweight critical current and the high-risk critical current that have corresponding relation with the dead weight capacity of vehicle in the said judge module; Include green indicating lamp, warning pilot lamp and high-risk pilot lamp in the said display unit; Behind the amplified current signal of said judge module received current amplification module output; It and overweight critical current and high-risk critical current in it are compared, again according to comparative result output Different control signal to open or closed safe pilot lamp, warning pilot lamp and high-risk pilot lamp:
When comparative result is a received electric current during more than or equal to overweight critical current, judge the vehicle non-overloading, warning pilot lamp and high-risk pilot lamp are closed in control, and open green indicating lamp; When comparative result is a received electric current during less than overweight critical current and more than or equal to high-risk critical current, judge overload of vehicle, control closed safe pilot lamp and high-risk pilot lamp, and open the warning pilot lamp; When comparative result when being received electric current less than said high-risk critical current, judge that vehicle seriously overloads, control closed safe pilot lamp and warning pilot lamp, and open high-risk pilot lamp.
Wherein, green indicating lamp, warning pilot lamp and high-risk pilot lamp are opened and be shown as various colors when lighting: green indicating lamp is shown in green, and the warning pilot lamp is shown as yellow; High-risk pilot lamp is shown in red, whether overloads to make things convenient for the driver to distinguish vehicle better, and the degree of overload.Said green indicating lamp, warning pilot lamp and high-risk pilot lamp adopt light emitting diode.
In judging whether overload process of vehicle, when display unit showed green, the expression vehicle was a normal load; When display unit showed yellow, the expression vehicle overloaded, and the prompting human pilot will unload overweight load in real time; In unloading loading process; When display unit shows green once more, explain that vehicle removed the situation of overload, vehicle can safe operation; When the display unit exhibit red, the expression vehicle is seriously overload, if force operation; Adverse consequences may take place; The prompting human pilot will unload overweight load immediately, in unloading loading process, when display unit shows green once more; Explain that vehicle removed the situation of overload, vehicle can safe operation.
In the present embodiment, the displacement acquisition unit adopts the resistance-type range sensor, and its concrete model is ZYJ1-WBD-50B; The electric current amplification module adopts current amplifier, and its concrete model is CF741.
Overload of vehicle monitoring device of the present invention can also comprise a switch, with the conducting and the disconnection of the said closed circuit of controlled in real-time.
When spring assembly adopts volute spring; In general vehicle; The situation that has the electric current after the amplification in the closed-loop path of corresponding relation with the dead weight capacity of vehicle is following: 0.2A≤normal load≤0.22A, 0.02A≤warning load＜0.2A, high-risk load＜0.02A.In view of the above, setting the overweight critical current of storing in the judge module is 0.2A, and high-risk critical current is 0.02A.
When spring assembly adopted leaf spring, the situation that has the electric current after the amplification in the closed-loop path of corresponding relation with the dead weight capacity of vehicle was following: 0.1A≤normal load≤0.11A, 0.01A≤warning load＜0.1A, high-risk load＜0.01A.In view of the above, setting the overweight critical current of storing in the judge module is 0.1A, and high-risk critical current is 0.01A.
Certainly; In the present embodiment; The value of said overweight critical current and high-risk critical current can comprehensively concrete vehicle, different distances sensor or electric current amplification module specifically be set, and the above-mentioned value in the present embodiment is a general value generally.
In reality; In order to make the driver see that very intuitively vehicle is normally, overloads or serious overload; Preferably; Can place corresponding with it nameplate mark in each pilot lamp next door in display unit: when the green indicating lamp in the display unit showed green, the expression vehicle was a normal load, mark " normally " on the nameplate on said green indicating lamp next door; When the warning pilot lamp in the display unit showed yellow, the expression vehicle overloaded, mark " overload " on the nameplate on warning pilot lamp next door; When the high-risk pilot lamp exhibit red in the display unit, the expression vehicle is seriously overload, mark on the nameplate on high-risk pilot lamp next door " serious overload ".Perhaps " when display unit showed green, vehicle was a normal load in Direct Mark on the nameplate; When display unit showed yellow, vehicle overloaded; When the display unit exhibit red, the expression vehicle is seriously overload.”
A kind of automobile that adopts the overload of vehicle pick-up unit of present embodiment.
It is understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present invention is described, yet the present invention is not limited thereto.For the one of ordinary skilled in the art, under the situation that does not break away from spirit of the present invention and essence, can make various modification and improvement, these modification also are regarded as protection scope of the present invention with improving.
Claims (12)
1. an overload of vehicle monitoring device is characterized in that, comprising:
The displacement acquisition unit, be used for real-time collection vehicle drive be suspension elastic parts length/deformation quantity and with the length signals that collects/deformation quantity signal output;
Control module is used to receive length signals/deformation quantity signal that the displacement acquisition unit is exported, and judges according to the length/deformation quantity that receives whether vehicle is in overload condition, again according to judged result output control signal;
Display unit is used to receive the control signal that control module is exported, and shows according to the said control signal that receives.
2. overload of vehicle monitoring device according to claim 1; It is characterized in that; Include judge module in the said control module; Store the overweight critical length/overweight deformation quantity that has corresponding relation with the dead weight capacity of vehicle in the said judge module; Said judge module is used to receive the length signals/deformation quantity signal of displacement acquisition unit output, and received length/deformation quantity and the overweight critical length/overweight deformation quantity in it are compared, again according to comparative result output Different control signal.
3. overload of vehicle monitoring device according to claim 2; It is characterized in that; Include the warning pilot lamp in the said display unit, judge module is exported the Different control signal to open or to close the warning pilot lamp in the display unit according to different comparative results:
When comparative result is the length that receives during less than overweight critical length, control output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during more than or equal to overweight critical length, control output safety signal is to close the warning pilot lamp or the warning pilot lamp is not opened in control; Perhaps,
When comparative result is the deformation quantity that receives during less than overweight deformation quantity, control output safety signal is to close the warning pilot lamp or the warning pilot lamp is not opened in control; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity, control output restricted speed signal is to open the warning pilot lamp.
4. overload of vehicle monitoring device according to claim 2; It is characterized in that; Include warning pilot lamp and green indicating lamp in the said display unit, judge module is exported the Different control signal to open or to close warning pilot lamp and the green indicating lamp in the display unit according to different comparative results:
When comparative result is a received length during more than or equal to overweight critical length, the warning pilot lamp is closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received length during less than overweight critical length, control closed safe pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; Perhaps,
When comparative result is a received deformation quantity during less than overweight deformation quantity, the warning pilot lamp is closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity, control closed safe pilot lamp, and the output restricted speed signal is to open the warning pilot lamp.
5. overload of vehicle monitoring device according to claim 4 is characterized in that, said spring assembly adopts volute spring, and the overweight critical length of storing in the judge module is 280mm, and overweight deformation quantity is 20mm; Said spring assembly adopts leaf spring, and the overweight critical length of storing in the judge module is 180mm, and overweight deformation quantity is 20mm.
6. overload of vehicle monitoring device according to claim 4; It is characterized in that; Also include high-risk pilot lamp in the said display unit; Also store high-risk critical length/high-risk deformation quantity in the said judge module; After said judge module receives the length signals/deformation quantity signal of displacement acquisition unit output, received length and the overweight critical length value in it and high-risk critical length/overweight deformation quantity and high-risk deformation quantity are compared, export the Different control signal according to comparative result again:
When comparative result is a received length during more than or equal to overweight critical length, warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received length during less than overweight critical length and more than or equal to high-risk critical length, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result is a received length during less than high-risk critical length, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp;
When comparative result is a received deformation quantity during less than overweight deformation quantity, warning pilot lamp and high-risk pilot lamp are closed in control, and the output safety signal is to open green indicating lamp; When comparative result is a received deformation quantity during more than or equal to overweight deformation quantity and less than high-risk deformation quantity, control closed safe pilot lamp and high-risk pilot lamp, and the output restricted speed signal is to open the warning pilot lamp; When comparative result is a received deformation quantity during more than or equal to high-risk deformation quantity, control closed safe pilot lamp and warning pilot lamp, and export high-risk signal to open high-risk pilot lamp.
7. overload of vehicle monitoring device according to claim 6 is characterized in that, said spring assembly adopts volute spring; The overweight critical length of storing in the judge module is 280mm; High-risk critical length is 260mm, and overweight deformation quantity is 20mm, and high-risk deformation quantity is 40mm; Said spring assembly adopts leaf spring, and the overweight critical length of storing in the judge module is 180mm, and high-risk critical length is 160mm, and overweight deformation quantity is 20mm, and high-risk deformation quantity is 40mm.
8. according to the described overload of vehicle monitoring device of one of claim 1-7, it is characterized in that said displacement acquisition unit adopts displacement transducer or range sensor, said control module adopts dsp controller.
9. an overload of vehicle monitoring device is characterized in that, comprises displacement acquisition unit, control module, display unit and power supply, and displacement acquisition unit, control module, display unit and power supply constitute a closed circuit,
Said displacement acquisition unit adopts the resistance-type displacement transducer; Said resistance-type displacement transducer is used for length/deformation quantity that real-time collection vehicle drives the elastic parts that is suspension; And the length/deformation quantity of said elastic parts is converted into resistance in the corresponding with it closed-loop path so that the all-in resistance in the said closed-loop path changes
Include current acquisition module and judge module in the said control module, said current acquisition module is used for gathering in real time the electric current of said closed-loop path, and with the current signal output that collects; Said judge module is used for the current signal that the received current acquisition module collects, and judges according to the current signal that receives whether vehicle is in overload condition, again according to judged result output control signal,
Display unit is used to receive the control signal that judge module is exported, and shows according to the said control signal that receives.
10. overload of vehicle monitoring device according to claim 9; It is characterized in that; Store the overweight critical current that has corresponding relation with the dead weight capacity of vehicle in the said judging unit, include the warning pilot lamp in the said display unit, behind the current signal that said judging unit received current acquisition module collects; It and overweight critical current in it are compared, again according to comparative result output Different control signal to open or to close the warning pilot lamp.
11. overload of vehicle monitoring device according to claim 10; It is characterized in that; Also include green indicating lamp and high-risk pilot lamp in the said display unit; Also store high-risk critical current in the said judge module; Behind the current signal that said judge module received current acquisition module collects, it and overweight critical current and high-risk critical current in it are compared, open respectively or closed safe pilot lamp, warning pilot lamp and high-risk pilot lamp according to comparative result output Different control signal again.
12. an automobile is characterized in that, includes the described overload of vehicle monitoring device of one of claim 1-11 in the said automobile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104178989A CN102496297A (en) | 2011-12-09 | 2011-12-09 | Vehicle overload monitoring device and automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104178989A CN102496297A (en) | 2011-12-09 | 2011-12-09 | Vehicle overload monitoring device and automobile |
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Application publication date: 20120613 |