CN201066304Y - Overload detection device - Google Patents

Abstract

An overfreight detector resolves the problems of difficult prevention and great hazard existing in the prior overfreight problem of vehicles, effectively strikes the malignant overfreighting behaviors, reduces the chances of traffic accidents caused by overfreight and increases the driving safety. The utility model comprises a control device and a plurality of sensors which transmit automotive loading signals to the control device, wherein, the sensors are mounted on the load-bearing girder of a vehicle, the output ends of the sensors are connected with the signal input ends of the control device, and the output ends of the control device are connected with the oil circuit system and ignition system of the vehicle. When the vehicle is overfreighted under the state of cutout, the sensors send instructions to the ignition system to prohibit ignition; when the vehicle is overfreighted under the state of starting, the sensors send instructions to the oil circuit system, so that the engine of the vehicle is automatically cut out; the utility model applies the compulsive means to prevent the driver from overfreighting, thus realizing the purpose of the utility model.

Description

The overload pick-up unit

Technical field

The utility model relates to a kind of supervisory system, the overload pick-up unit of particularly a kind of monitoring and control overload of vehicle.

Background technology

Visitor, air truck motor-car overload problems are social now a great problems, owing to be subjected to the driving of interests, exhausted most visitor, the problem that all there is overload in freight.The main root of great traffic route accident is not only in overload, and also serious destruction road pollutes, and reduces the life-span of vehicle.At present, traffic police department also only limits to set out police strength to the improvement of overload, sets out on a journey and looks into, blocks up, the weight of subjective judgement overload.So not only cause road traffic congestion, look into one and leak hundred, and law enforcement do not have scientific basis, cause car owner and traffic police's disagreement and contradiction.

It is reported that three kinds of methods are mainly passed through at present domestic examination to overload, the one, only depend on naked eyes to detect, this method is science not, causes easily to get sth into one's head; The 2nd, by measuring the area calculated weight, because different products, area and weight are out-of-proportion, do not have science; The 3rd, the vehicle of suspecting overload is reached the appointed place weigh, this is the method for selective examination just, looks into one easily and leaks hundred, and is not strict in enforcing the law respectful.Above-described three kinds of methods all must be stopped and be checked, and cause road congestion easily, have a strong impact on the unimpeded of traffic route.

Nowadays the construction of urban road is very rapid, but has report often in the news report: situations such as pavement cracking, sedimentation take place in so-and-so road under the no show situation of tenure of use.The frequent generation of these situations causes government having to drop into bigger manpower and fund aspect the maintenance of town road and the construction, has caused the certain economic loss.And the main cause that these town roads damage is that the vehicle peccancy overload is caused.

Find that after having consulted a large amount of data the overload utility model of class of domestic preventing at present is also very rare, remains to be filled.Though a kind of dynamic electron weighbridge is wherein arranged, the detection of can weighing within 10 kilometers/hour, but because construction is complicated needs road closure to deep-cut ground (3 meters (wide) * of 20 meters (length) * 0.8 meter (height)) cost cost height, low speed causes the road traffic congestion easily, can not widespread use.

Another kind is used for the automobile overload automatic identification method of road travel and traffic safety monitoring, it discerns vehicle by camera, carload detects by ground pressure sensor signal and exports through data collecting card to PC, according to the funtcional relationship calculating acquisition axle load of axle load and pressure; According to the result of carload detection with the identification of car category specification, on the PC calculate platform, can calculate the actual loading amount, overload capacity, the unit length of wagon quality that obtain tested automobile with reasoning very easily, finally finish automobile overload identification, export whether tested automobile overloads and whether current road allows the conclusion of passing through.There is the cost height equally in the method for this kind detection, causes the problem of road traffic congestion easily.

The utility model content

The purpose of this utility model provides a kind of overload pick-up unit, solve the problem of the overload problems existing " prevent difficulty, harm is big " of vehicle in the past, effective strike has been carried out in the behavior of malice overload, the probability of the traffic hazard that minimizing causes because of overload has increased traveling security.

The purpose of this utility model can be achieved through the following technical solutions:

A kind of overload pick-up unit is characterized in that it comprises:

One control device, and

Some sensors that the vehicle load signal are transferred to described control device;

Described sensor is installed on the spandrel girder of vehicle, the signal input part of the output terminal access control apparatus of sensor, the oil piping system and the firing system of the described vehicle of output termination of control device.

A kind of overload pick-up unit of the present utility model, when automobile when flameout state overloads, sensor will spread out of instruction to firing system, forbid igniting, when vehicle is starting state when overload, sensor will send instruction to oil piping system, auto extinguishing; Prevent driver's overload behavior with this enforceable means, realize the purpose of this utility model.

Description of drawings

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is the control flow chart of control device of the present utility model;

Fig. 3 is a control panel functional schematic of the present utility model;

Fig. 4 is that suspension frame structure is formed synoptic diagram;

Fig. 5 is a leaf spring suspension frame structure synoptic diagram;

Fig. 6 is the circuit diagram of automotive ignition system;

Fig. 7 is the fuel feeding synoptic diagram of diesel engine.

Embodiment

As shown in Figure 1, a kind of overload pick-up unit, it comprises: a control device 1, and some sensors 2 that the vehicle load signal are transferred to described control device 1; Described sensor 2 is installed on the spandrel girder of vehicle, the signal input part of the output terminal access control apparatus 1 of sensor 2, the oil piping system and the firing system of the described vehicle of output termination of control device 1.

As shown in Figure 2, the operating procedure of control device 1 is as follows:

1) judges vehicle-state (flameout state or starting state);

2) if be in flameout state, judge overload;

3) if overload, the control ignition system forbids a little fighting and notes the data of overload; If not overload allows the firing system igniting, return 1 then);

4) if be in starting state, judge overload;

5) if overload, the control oil channel system cuts off oil circuit and notes the data of overload; If not overload is then let pass, return 1 then).

(1) control device

Auto Electronic Controlled System is used for vehicle intellectualized Body Control, mainly form by preceding ECU, steering column ECU (steering-column switch ECU (Electrical Control Unit)), ETACS (regularly, warning electronic control system), P/W module (Electrically operated gate, window control module) etc., adopt the serial data transmission mode, Computerized intelligent chemical control system.Control device of the present utility model 1 is the exploitation calligraphy or painting model with the single-chip microcomputer, has designed a program voluntarily, writes the load value of standard in advance therein.Overload in order to Control of Automobile is judged, oil circuit control, firing system.This integrated module is built-in to be embedded in the electric-control system of automobile, is the core of supervisory system.With simple circuit control realize my this device in basic imagination.This part of control panel also will be provided with the measure of tamper-proof and anti-modification.Prevented that the lawless person from destroying system backbone for individual interest, make systemic breakdown.(referring to Fig. 3)

(2) load bearing system

Wheeled running gear: directly the part that contacts with the road surface is a wheel, is made up of vehicle frame, vehicle bridge, wheel and suspension etc.

The version of a, vehicle frame

Straight frame: be widely used

Central frame: be called the backbone type vehicle frame again

The composite type vehicle frame:

No girder frame: claim monocoque body again

B, vehicle bridge

Drive axle, steering and driving axle, steeraxle, support bridge

C, suspension

The structure of this part is according to the difference of vehicle ' system, and according to the difference of carriage frame, vehicle bridge and suspension.A whole set of load-bearing inductor is installed in only position on the selection vehicle spandrel girder.Measured data are exactly the dead weight capacity of vehicle.This part is to link to each other with electric-control system, is the work unit of the data input of this cover system.(referring to Fig. 4, Fig. 5)

(3) firing system

The device of this part is under the jurisdiction of the executable unit of whole system.

As everyone knows, produce spark, required device comprises power supply, battery, transformer (being ignition coil), and the switch that is used for the control transformer primary current.The electronics textbook is told us V=L di/dt.Therefore, if the electric current generation instantaneous variation in the elementary winding of coil (being that the di/dt value is very big) will produce high pressure on the elementary winding.If the turn ratio of this ignition coil is N, just can be by this number of turns than amplifying original edge voltage.The result will produce the voltage of 10KV to 20KV on secondary, across the spark plug gap.In case this voltage above the specific inductive capacity of gap surrounding air, will puncture the gap and form spark.This spark can be lighted fuel oil and AIR MIXTURES, thereby produces the required energy of engine work.

Except that diesel engine, a basic circuit (automotive ignition system) is arranged all in all internal combustion engines.The on-off element that is used for the ignition coil charging has experienced very big differentiation: from a plurality of contact breaker points of single mechanical switch, ignition distributor, to being installed in the ignition distributor or the high pressure Darlington bipolar transistor in the independent electronic control module, to being directly installed on the insulated gate bipolar transistor in the ignition coil (IGBT) on the spark plug, be to be directly installed on the intelligent IGBT in the ignition coil on the spark plug at last again.

In the face of kind various electronic ignition system like this, unlikely remove to design exhaustive ignition controller, the problem that can under the situation of overload of vehicle, stop automotive ignition for resolution system, expected starting with from origin, electric energy on the automobile comes from the accumulator on the vehicle before not starting, so the ignition control device of design is just accused this road circuit of accumulator.Which type of firing system what so no matter automobile used is, can accomplish the purpose of the Don't Exceed Weight Limit igniting of " all super must breaking ".(referring to Fig. 6)

(4) oil circuit control device

The device of this part is under the jurisdiction of the executable unit of whole system equally.

Oil supply system is divided into two kinds of carburetor and fuel injection systems.Because the technical obsolescence and the shortcoming of carburetor are many, are eliminated.So the engine oil supply system of generally using is exactly singly to refer to fuel injection system now.Injection system is made up of Fuel Delivery System, inductor system, computerized control system.Its principle of work is exactly after utilizing petrol pump with the gasoline pressurization in simple terms, send high-pressure oil passage to from fuel tank, regulating action through pressure regulator makes the charge oil pressure in the system maintain 2.0～2.5, and the gasoline pressure that just will deliver to atomizer remains on 2.0～2.5.Simultaneously the air inflow of engine and operating condition are sent to fuel feeding computer (ECU:Electronic ControlUnit) with the form of voltage signal by each inductor, ECU is analyzed according to these voltage signals, calculate required distributive value, just calculate the injection time of atomizer, and then the oil spout signal is sent to the coil of atomizer, after atomizer is accepted the oil spout signal, injection valve is opened, gasoline just is sprayed onto in the square in front of the door air intake branch of admission, again along with opening of admission door enters in the cylinder.

Because present automobile fuel feeding is many by computer electronic control, so can reach the purpose of overload oil-break very easily.When supervisory system detects overload information be, the supervisory system that is embedded in vehicle electrically controlling system can be from the instruction of trend fuel feeding computer (ECU) reception and registration fuel cut-off, and this process need not the operation through machinery, just can well finish via the electric-control system of vehicle.(referring to Fig. 7)

More than show and described ultimate principle of the present utility model and principal character and advantage thereof.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1. One kind the overload pick-up unit, it is characterized in that it comprises:

   One control device, and

   Some sensors that the vehicle load signal are transferred to described control device;

   Described sensor is installed on the spandrel girder of vehicle, the signal input part of the output terminal access control apparatus of sensor, the oil piping system and the firing system of the described vehicle of output termination of control device.

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