CN1825084A

CN1825084A - Automatic monitor of truck load balance and controlling method thereof

Info

Publication number: CN1825084A
Application number: CN 200610039323
Authority: CN
Inventors: 何仁; 陈庆樟
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2006-04-05
Filing date: 2006-04-05
Publication date: 2006-08-30
Anticipated expiration: 2026-04-05
Also published as: CN100514028C

Abstract

The invention relates to a truck loading balance testing device and control method based on TPMS that is made up of wheel pressure temperature sensor, front processor, radio frequency emitter, radio frequency receiver, wheel speed sensor, main processor, and display section. Loading balance calculating module is installed in main processor, and could be displayed on display section. The advantage is that it could guide to load to ensure loading balance, while truck running, it would alarm driver the balance condition, and it could also alarm driver to slow down on the road that is not in good condition.

Description

A kind of automatic monitor of truck load balance and control method thereof

Technical field

The present invention relates to a kind of automatic monitor of truck load balance and control method thereof, can when lorry loading is uneven, in time notify the car owner under the static state, and the unbalanced direction of load-carrying is represented with the bright form of diverse location warning lamp, so that adjust based on TPMS; When automobilism, can be load balance situation caution car owner; When using and also to help automobile and move on uneven road surface, this device remind the car owner that deceleration is gone slowly.

Background technology

Cargo vehicle loads imbalance and directly has influence on vehicle driving safety, particularly large-scale goods vehicle, and loading imbalance is one of key factor that causes traffic hazard.

Mainly be mechanical to the unbalanced monitoring device of lorry loading at present, but except the large-scale goods vehicle of minority, corresponding device thereof be not installed on most lorries, the car owner is to estimate by subjective visual inspection to the judgement of load balance.Very rough to the judgement of load balance like this, and the situation of change of load balance can't in time be judged in operational process, therefore load-carrying vehicle easily causes traffic hazard.

Find through the correlation technique literature search, the unbalanced monitoring of lorry loading mainly is mechanical, the lorry loading balance display device that the patent No.: CN87207581U is wherein arranged is can connect a circuit of LED by mechanical plunger and sleeve when imbalance is arranged to realize caution.But this uneven monitoring method is very rough, and warning way is not directly perceived and can't realize real-time monitoring.

Along with the further raising that people require vehicle safety performance, the tire pressure monitoring system of direct-type (TPMS) more and more becomes a kind of essential configuration of automotive safety.This provides new thinking for the lorry loading balance monitoring.

Summary of the invention

At the above-mentioned present situation that the cargo vehicle load balance is detected, purpose of the present invention will provide a kind of automatic monitor of truck load balance exactly.This device can with the automobile static loading whether the information of balance pass to the car owner, simultaneously when automobilism, if the advisory car owner that the variation that balance takes place may cause the driving safety performance to worsen goes slowly so that the car owner in time adjusts or slows down.

The technical scheme that the present invention is adopted for the above technical matters of solution: described load balance automated watch-keeping facility system is based upon on the tire pressure monitoring system (TPMS) of direct-type, comprise tire pressure temperature sensor, preprocessor, radio-frequency transmissions, radio frequency receiver, wheel speed sensors, TPMS primary processor and display part, it is characterized in that in the TPMS primary processor, being provided with a judgement and whether load the load balance computing module and the display part of balance.

The control method of described truck load balance monitoring device, it is characterized in that utilizing the tyre-pressure temperature sensor and the wheel speed sensors signal of TPMS system, judge and whether load balance by in the TPMS primary processor, adding a load balance calculation procedure module, processor is after receiving each tire pressure data and vehicle speed signal, each tire pressure temperature initial value is preset, relatively summation again in loading process, thereby calculate vehicle load G, to the vehicle speed sensor calculated signals, see whether vehicle is in non-accelerating state simultaneously.If cargo dead-weight is few, i.e. G＜G _Min, or vehicle is in acceleration mode or deceleration regime just needn't be carried out load balance calculating; If G＞G _MinThen enter EQUILIBRIUM CALCULATION FOR PROCESS, and vehicle is in non-accelerating state, then processor calculates each wheel load proportion δ according to each tire pressure and initial preset condition value, if certain or certain on one side wheel load proportion is big especially, greater than threshold value δ _MaxIllustrate that then center of gravity is partial to this place, processor sends instruction and makes the corresponding warning lamp bright simultaneously.

According to the present invention, this system utilizes and adds the load balance computing module in the TPMS system, and the load balance situation is carried out automatic monitoring display.Its advantage is that charge of trucks can instruct loading during the course, guarantees load balance; When vehicle operating, the imbalance that causes in the motion process can in time show, and reminds the car owner to adjust or slow down and goes slowly; When on uneven road surface, travelling simultaneously, when unevenness influences traffic safety too greatly, remind the car owner to go slowly, for the goods carrying vehicle safe operation provides safeguard.

Description of drawings

Fig. 1 is a theory structure synoptic diagram of the present invention

Fig. 2 is a load balance computing module process flow diagram of the present invention

Fig. 3 is a display part of the present invention synoptic diagram

Embodiment

The present invention is further described below in conjunction with drawings and Examples.

The present invention mainly comprises tire pressure temperature sensor 1, preprocessor 2, radio-frequency transmissions 3, radio frequency receiver 4, vehicle speed sensor 5, load balance monitoring calculation module, TPMS primary processor 6 and display part 7.

As shown in Figure 1, the signal of the tire pressure temperature sensor 1 of TPMS system is through behind the front processor 2, deliver to primary processor 6 by communication part, the load balance computing module of primary processor 6 is handled each tire pressure data and vehicle speed sensor 5 signal datas; There is the minimum dead weight capacity G that load balance need detect in the primary processor 6 simultaneously _MinThreshold value δ with degree of unbalancedness _MaxSize, load the whether judgement of balance by calculating relatively can to draw, and load balance whether information shown by display.

The load balance computing module program flow diagram of primary processor 6 as shown in Figure 2.Processor 6 is after receiving each tire pressure data and vehicle speed signal, each tire pressure temperature initial value is preset, relatively summation again in loading process, thus calculate vehicle load G, to the vehicle speed sensor calculated signals, see whether vehicle is in non-accelerating state simultaneously.If cargo dead-weight is few, i.e. G＜G _Min, or vehicle is in acceleration mode (comprising deceleration here) and just needn't carries out load balance and calculate; If G＞G _MinThen enter EQUILIBRIUM CALCULATION FOR PROCESS, and vehicle is in non-accelerating state, then processor 6 calculates each wheel load proportion δ according to each tire pressure and initial preset condition value, if certain or certain on one side wheel load proportion is big especially, greater than threshold value δ _MaxIllustrate that then center of gravity is partial to this place, processor 6 sends instruction and makes display part 7 corresponding warning lamps bright simultaneously.

Display part 7 as shown in Figure 3, warning lamp all is a red light, before warning lamp 8 bright then center of gravity inclined left; Before the warning lamp 9 bright then center of gravity inclined right; After the warning lamp 10 bright then center of gravity inclined left; After the warning lamp 11 bright then center of gravity inclined right; Warning lamp 10,11 all bright explanation center of gravity deflection back; Warning lamp 8,10 bright explanation center of gravity deflection left sides; Warning lamp 9,11 all bright explanation center of gravity deflection right sides.When all working, all lamps do not illustrate that center of deadweight meets the safety traffic requirement.

When on uneven road surface, travelling, when the unevenness on road surface is big, can cause vehicle-mounted center of gravity to be offset, thereby make load proportion that indivedual tire shares above δ _Max, it is bright to trigger the corresponding warning lamp, belongs to the unevenness entail dangers to normal vehicle operation safety on this road surface if the warning lamp meeting is bright, and the driver should be slowed down and be gone slowly.

Claims

1. automatic monitor of truck load balance, it is based upon on the tire pressure monitoring system TPMS, comprise that tire pressure temperature sensor (1), preprocessor (2), radiofrequency launcher (3), radio frequency receiver (4), TPMS primary processor (6), wheel speed sensors (5), display part (7) form, it is characterized in that in the TPMS primary processor, being provided with a judgement and whether load the load balance computing module and the display part of balance.

2. a kind of automatic monitor of truck load balance according to claim 1, it is characterized in that: display part (7) comprise four warning lamps (8,9,10,11) of representing four direction, can represent the different direction of vehicle loading center of gravity deflection by four bright array mode differences of lamp.

3. the control method of an automatic monitor of truck load balance, it is characterized in that utilizing the tyre-pressure temperature sensor (1) and wheel speed sensors (5) signal of TPMS system, judge and whether load balance by in TPMS primary processor (6), adding a load balance calculation procedure module, processor (6) is after receiving each tire pressure data and vehicle speed signal, each tire pressure temperature initial value is preset, relatively summation again in loading process, thereby calculate vehicle load G, to the vehicle speed sensor calculated signals, see whether vehicle is in non-accelerating state simultaneously; If cargo dead-weight is few, i.e. G＜G _Min, or vehicle is in acceleration mode or deceleration regime just needn't be carried out load balance calculating; If G＞G _MinThen enter EQUILIBRIUM CALCULATION FOR PROCESS, and vehicle is in non-accelerating state, then processor calculates each wheel load proportion δ according to each tire pressure and initial preset condition value, if certain or certain on one side wheel load proportion is big especially, greater than threshold value δ _MaxIllustrate that then center of gravity is partial to this place, processor sends instruction and makes the corresponding warning lamp bright simultaneously.