CN202885904U

CN202885904U - Automotive residual fuel oil amount display system

Info

Publication number: CN202885904U
Application number: CN 201220589983
Authority: CN
Inventors: 陈泽坚
Original assignee: Atech Automotive Wuhu Co Ltd
Current assignee: Atech Automotive Wuhu Co Ltd
Priority date: 2012-11-09
Filing date: 2012-11-09
Publication date: 2013-04-17
Anticipated expiration: 2022-11-09

Abstract

The utility model discloses an automotive residual fuel oil amount display system. The automotive residual fuel oil amount display system is characterized in that a control unit receives a fuel oil sensor, ignition signals, automotive speed signals and oil consumption signals and drives a liquid crystal display (LCD) to display, the ignition signals, the automotive speed signals and the fuel oil sensor are compared to judge whether the fuel oil of an automobile is added or leaked, and the fuel oil total consumption amount after the automobile is refueled is judged through the oil consumption signals. By means of the structure and the method, the automotive residual fuel oil amount display system has the advantages of displaying the fuel oil residue condition of the automobile without the inference of the outside, alarming timely when collected data are not effective, being simple in circuit structure, and being low in production cost.

Description

A kind of automobile Fuel Remained amount display system

Technical field

The utility model relates to the automobile combination meter field, particularly a kind of automobile Fuel Remained amount display system.

Background technology

At present, the automobile oil mass table is by microprocessor the resistance signal in the fuel sensor to be carried out being converted into digital signal after the analog sampling, and the segment encode that again digital signal is converted into the step number of motor or LCD screen is realized the indication of vehicle Fuel Oil Remaining.But in the Vehicle Driving Cycle process, since road bump, vehicle turn round and acceleration and deceleration or the long-time factor such as stop in the ramp can cause that the pasta in the fuel tank rocks, cause having a larger deviation for a long time between output oil mass on the fuel sensor and the actual fuel tank fuel quantity, algorithm and strategy that this deviation utilization is present all can't be avoided.Will cause like this fuel level gauge indication on the combination instrument inaccurate, bring wrong judgement to the user.

Provide a kind of novel Fuel Remained amount display system for above-mentioned situation, can not be subjected to the accurate display automobile fuel oil of external interference residue situation is the problem that prior art need to solve.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of automobile Fuel Remained amount display system, to reach the purpose that is not subjected to the accurate display automobile fuel oil residue of external interference situation.

For achieving the above object, the technical solution of the utility model is, a kind of automobile Fuel Remained amount display system is characterized in that: described display system drives LCD display when being control module reception fuel sensor, ignition signal, vehicle speed signal, oil consumption signal and shows; Ignition signal, vehicle speed signal and fuel sensor compare judges whether automobile refuels or leakage of oil; The oil consumption signal is judged the fuel oil total flow behind the automobile fuel filler.

Described display system is the total amount of fuel after control module is judged last the oiling, calculates total flow again and calculates fr and drive LCD display and carry out fr and must show.

Described display system for the fuel tank fuel quantity when making war fire and the difference of the fuel tank fuel quantity after closing the 8s that lights a fire greater than minimum volume read-out, perhaps stop be not related to behind the igniting 8s and the variation of the oil tank fuel amount of car when starting greater than minimum volume read-out, control module just can judge that fuel tank refuels; Otherwise do not judge and refuel.

Described display system is to rise in the moment that control module judgement vehicle has refueled, and total oil consumption is accumulated again according to the oil consumption signal, otherwise remains unchanged.

In the described display system control module judge refueled last time in, the fuel consume total amount again cumulative calculation of starting from scratch.

A kind of automobile Fuel Remained amount display system owing to adopting above-mentioned structure and method, the utility model has the advantage of: 1, be not subjected to the accurate display automobile fuel oil residue of external interference situation; 2, can when losing efficacy, sampling numerical value in time report to the police; 3, circuit structure is simple, and production cost is low.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;

Fig. 1 is a kind of automobile Fuel Remained of the utility model amount display system architectures block diagram;

Fig. 2 is a kind of automobile Fuel Remained of the utility model amount display system software flow pattern;

In Fig. 1,1, control module; 2, fuel sensor; 3, ignition signal; 4, vehicle speed signal; 5, oil consumption signal; 6, LCD display.

Embodiment

As shown in Figure 1, the utility model is that control module 1 drives LCD display 6 when receiving fuel sensor 2, ignition signal 3, vehicle speed signal 4, oil consumption signal 5 and shows; Ignition signal 3, vehicle speed signal 4 are advanced the contrast of 2 row with fuel sensor and are judged whether automobile refuels or leakage of oil; Oil consumption signal 5 is judged the fuel oil total flow behind the automobile fuel filler.

Control module 1 is judged the total amount of fuel after last the oiling, calculates total flow again and calculates fr and drive LCD display 6 and carry out fr and must show.

Fuel tank fuel quantity when making war fire and close igniting 8s after the difference of fuel tank fuel quantity greater than minimum volume read-out, perhaps stop be not related to behind the igniting 8s and the variation of the oil tank fuel amount of car when starting greater than minimum volume read-out, control module 1 just can judge that fuel tank refuels; Otherwise do not judge and refuel.The moment that control module 1 judgement vehicle has refueled rises, and total oil consumption is accumulated again according to the oil consumption signal, otherwise remains unchanged.

Control module 1 judge refueled last time in, the fuel consume total amount again cumulative calculation of starting from scratch.

The utility model is on the basis of original sensor and combination instrument, increase the signal 5 of an oil consumption, utilize the difference of the initial oil mass of fuel tank and oil supply to obtain Fuel Oil Remaining, so just can avoid the problems such as the shake of segment encode of fuel level gauge pointer in the driving process or LCD display 6 and distortion.

The utility model specifically discloses a kind of novel method for controlling fuel meter, comprises following step:

Step 1: gather the vehicle fuel sensing: 2 signal is used for detecting the oil mass in the fuel tank, gathers switch ignition information 3 and vehicle speed signal 4 and is used for judging whether to refuel, and gathers oil consumption signal 5 for detection of total oil consumption.

Step 2: according to state and vehicle speed signal 4 states of switch ignition information 3, current Fuel Oil Remaining and fuel tank fuel quantity judge whether vehicle refuels: the difference of the fuel tank fuel quantity behind the fuel tank fuel quantity when making war fire and the pass igniting 8s is greater than minimum volume read-out, perhaps stop be not related to behind the igniting 8s and the variation of the oil tank fuel amount of car when starting greater than minimum volume read-out, just can judge that fuel tank refuels; Otherwise do not judge and refuel.

Step 3: the initial oil mass of determining fuel tank according to fueling state and fuel tank fuel quantity, if control module 1 is judged to be oiling, current oil mass then, namely previous step battle fire or vehicle take-offs fuel tank fuel quantity constantly be initial oil mass, otherwise the initial oil mass of oil mass remains unchanged.

Step 4: according to vehicle whether initial fuel tank fuel quantity and oil supply are determined in oiling: from judging that the moment that vehicle refueled, total oil consumption is accumulated again according to oil consumption signal 5, otherwise remains unchanged.

Step 5: deduct total oil consumption according to the initial oil mass of determining in the step 3, just can obtain the Fuel Oil Remaining of fuel tank, then under fired state, allow pointer or LCD display 6 segment encodes be indicated to corresponding position.

The technical characterstic that the utility model adopts is: in vehicle traveling process, the Fuel Oil Remaining of combination instrument fuel level gauge indication is to be obtained by the initial oil mass of fuel tank and the difference of oil supply, irrelevant with the fuel tank fuel quantity signal that obtains from fuel sensor 2 processing, it is inaccurate that thereby the fuel tank fuel quantity deviation of signal that the fuel sensor of avoiding road conditions to cause obtains causes oil meter to show, guaranteed accuracy and the reliability of the Fuel Oil Remaining of fuel level gauge indication under the complex road condition.This scheme can be used the existing hardware facility of combination instrument, need not increase the cost of development of hardware, has reduced development cost and the complex software degree of combination instrument.

The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or directly apply to other occasion without improvement, all within protection domain of the present utility model.

Claims

1. automobile Fuel Remained amount display system is characterized in that: described display system is that control module (1) drives LCD display (6) when receiving fuel sensor (2), ignition signal (3), vehicle speed signal (4), oil consumption signal (5) and shows; Ignition signal (3), vehicle speed signal (4) compare with fuel sensor (2) judges whether automobile refuels or leakage of oil; Oil consumption signal (5) is judged the fuel oil total flow behind the automobile fuel filler.