CN200974768Y

CN200974768Y - Equivalent weight automobile new-old oil displacement system

Info

Publication number: CN200974768Y
Application number: CN 200620122037
Authority: CN
Inventors: 刘均; 高万盛; 张勇华; 阳勇; 张湘云
Original assignee: Shenzhen Launch Technology Co Ltd
Current assignee: Shenzhen Launch Technology Co Ltd
Priority date: 2006-06-28
Filing date: 2006-06-28
Publication date: 2007-11-14
Anticipated expiration: 2016-06-28

Abstract

An equivalent weight automobile new and old oil replacing system can be used with automobile cleaning equipment, which comprises a microcontroller, a signal acquisition and processing module, an A/D convert module, a program storage unit, an input module, a display module, an equivalent controlled execution module, a power module, a new oil tank sensor and an old oil tank sensor. The power module is connected with the microcontroller, the signal acquisition and processing module, the A/D convert module, the program storage unit, the input module, the display module and the equivalent controlled execution module to provide power for the modules. The microcontroller is connected with the signal acquisition and processing module, the A/D convert module, the program storage unit, the input module, the display module and the equivalent controlled execution module. The utility model can realize accurate equivalent weight replacing real time control during the automobile new and old oil replacing process.

Description

The new and old fluid exchange system of equal weight automobile

Affiliated technical field

The utility model relates to a kind of system that is applied to the new and old fluid displacement of realization equal weight on the equipment such as automobile cleans serial equipment such as Automatic Transmission Fluid (ATF) is more changed planes, automotive brake fluid is more changed planes.

Background technology

In the automotive use process, the brake system of automobile, the automatic transmission with hydraulic torque converter system, power steering system and lubricating system etc. will regularly carry out fluid and change, when carrying out fluid replacing operation, require old oily discharge rate to equate with the fresh oil adding amount, if the fluid amount after changing will cause damage to automobile when exceeding its cooresponding standard range, even its cooresponding automotive system was lost efficacy, prior art adopts methods such as artificial judgment or mechanical gear pump to carry out new and old fluid displacement, can not realize the displacement of the new and old fluid of more accurate equal weight automobile, promptly filling is too much or very few easily in operation, therefore be necessary to invent a kind of when displacement fluid, detect in real time new, the changes in weight situation of old fluid weight and automatic newer fluid and old fluid, according to the adding amount of the new fluid of discharge rate automatic compensation of old fluid, to realize the system of the new and old fluid displacement of more accurate equal weight automobile.

Summary of the invention

At above-mentioned the deficiencies in the prior art, a purpose of the present utility model is to provide a kind of equal weight automobile new and old fluid exchange system, this system is in carrying out automotive oil fluid exchange process, the old fluid weight of discharge and the new fluid weight of filling are detected in real time, and the data that collect are calculated comparison, when old oily recirculating oil quantity is big, automatically increase the fresh oil adding amount, when old fluid recirculating oil quantity hour, automatically reduce the adding amount of new fluid, thereby realize the displacement of the new and old fluid of equal weight automobile.

For achieving the above object, the new and old fluid exchange system of equal weight automobile of the present utility model comprises:

One microcontroller; One signal acquisition process module; One A/D modular converter; One program store; One data memory; One load module; One display module; One equivalent control and executive module; One power module; One new tank sensor; One old tank sensor;

Described power module is connected so that working power to be provided with described microcontroller, signal acquisition process module, A/D modular converter, program store, data memory, load module, display module and equivalent control and executive module respectively;

Described microcontroller is connected with described signal acquisition process module, A/D modular converter, program store, data memory, load module, display module and equivalent control and executive module respectively;

Described program store is used for storage of constant data message and control program etc., and reserves serial i/O interface, can upgrade to inner constant data and program by serial i/O interface of reserving;

Described data memory is used for interim parameter and system's necessary parameter of memory system operational process;

Described new tank sensor and old tank sensor are LOAD CELLS;

Described equivalent control and executive module can be one or more binistors, be connected with microcontroller by the I/O interface, binistor can be selected devices such as relay or switching valve for use, microprocessor sends the action command of each device to equivalent control and executive module binistor by the I/O interface, and then device actions such as control electromagnetic valve, pump, realize real-time equal weight displacement controllable function.

Brief Description Of Drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is system and the automobile pipeline connection diagram of the utility model embodiment;

Fig. 2 is the hardware block diagram of the utility model embodiment;

Fig. 3 is the workflow diagram of the utility model embodiment.

The specific embodiment

Shown in the pipeline connection diagram that Fig. 1 is the utility model embodiment, the new and old fluid exchange system of the equal weight automobile of present embodiment is connected with automobile, and the old fluid of automobile is recovered in the old fuel tank, and the new fluid in the new fuel tank is filled in the automobile.

As Fig. 2 is the hardware block diagram of present embodiment, and the utility model provides a kind of equal weight automobile new and old fluid exchange system, and it mainly comprises:

Described power module provides+the 5V power supply, is connected so that working power to be provided with described microcontroller, signal acquisition process module, A/D modular converter, program store, data memory, load module, display module and equivalent control and executive module respectively;

But described data memory and program store are the overprogram memory device, link to each other with microcontroller by data bus, control bus, address bus, wherein program store is used for storage of constant data message and control program etc., program store is reserved serial i/O interface, can upgrade to internal data and program by serial i/O interface of reserving, data memory is used for interim parameter and system's necessary parameter of memory system operational process;

Described new tank sensor and old tank sensor are LOAD CELLS, send the signal acquisition process module to the real-time detection of weight new, old fuel tank and with sensor signal;

Described acquisition processing module is used for new, old tank sensor signal is carried out processing and amplifying, and the chip selection signal that sends according to microcontroller, and gating one tunnel sensor signal is sent to the A/D modular converter;

Described A/D modular converter is used for sending acquisition processing module here analog signal conversion and becomes digital signal, and the digital signal after the conversion is sent to microcontroller;

Described load module can adopt the device of various ways such as film key or touch-screen;

Described display module can adopt display devices such as dot matrix LCD liquid crystal display or LED charactron, and is connected the transmission of realization data double-way with microcontroller by parallel I/O interface;

Seeing also Fig. 3 below is workflow diagram of the present utility model, the operator sets required new and old fluid replacement amount in the new and old fluid exchange system of the equal weight automobile of present embodiment after, system at first carries out the initialization metering, i.e. metering is existing new, the weight of old fuel tank, system constantly passes through new in operational process, old tank sensor sampling is new, the weight of old fuel tank, calculate old fluid weight recruitment and the interior new fluid weight reduction of new fuel tank in the old fuel tank, simultaneously calculate the flow velocity that old fluid flows into old fuel tank according to old fluid changes in weight, and adjust new fluid is filled into automobile from new fuel tank flow velocity in real time with the flow velocity that old fluid flows into old fuel tank, the filling flow velocity of new fluid is equated in real time with the discharge flow velocity of old fluid, thereby realize that new and old fluid carries out the displacement of equal weight in real time, thereby regulate new oil filling flow velocity and is the rotating speed of regulating the fresh oil liquid pump by the driving voltage of regulating the fresh oil liquid pump, and then control that new oil filling flow velocity realizes.When if the weight recruitment that detects old fuel tank oil when system reaches the replacement amount of setting, promptly stop from the old fluid of car recycling, when system detects new fluid case weight reduction and reaches the replacement amount of setting, system stops the filling of new fluid immediately, when system detected the old fluid weight recruitment of old fuel tank and newly the new fluid weight reduction of fuel tank reaches the replacement amount of operator's setting simultaneously, the new and old fluid replacement process of whole equal weight finished.

The new and old fluid exchange system of the utility model equal weight automobile is realized in real time accurate equal weight displacement control in new and old fluid replacement process, the safety and the reliability of car maintenance servicing operations have been improved, simplified operator's operating process, avoided greatly because of artificially judgement or misoperation make automobile produce the situation that automobile damages because of the new and old fluid displacement of unequal weight occurring in doing fluid replacing process.

Claims

1. new and old fluid exchange system of equal weight automobile is characterized in that it comprises:

Described microcontroller is connected with described signal acquisition process module, A/D modular converter, program store, data memory, load module, display module and equivalent control and executive module respectively.

2. according to the new and old fluid exchange system of the equal weight automobile of claim 1, it is characterized in that described new tank sensor and old tank sensor are LOAD CELLS.

3. according to the new and old fluid exchange system of the equal weight automobile of claim 1, it is characterized in that, described equivalent control and executive module can be one or more binistors, is connected with microcontroller by the I/O interface, and binistor can be selected relay or switching valve device for use.