CN101445049A - Method and device for automobile fuel economy - Google Patents

Method and device for automobile fuel economy Download PDF

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Publication number
CN101445049A
CN101445049A CNA2008103031504A CN200810303150A CN101445049A CN 101445049 A CN101445049 A CN 101445049A CN A2008103031504 A CNA2008103031504 A CN A2008103031504A CN 200810303150 A CN200810303150 A CN 200810303150A CN 101445049 A CN101445049 A CN 101445049A
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China
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automobile
fuel
engine
control
electric energy
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CNA2008103031504A
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Chinese (zh)
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杨鸣峰
王小霞
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王小霞
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Priority to CN200810302773 priority
Application filed by 王小霞 filed Critical 王小霞
Priority to CNA2008103031504A priority patent/CN101445049A/en
Publication of CN101445049A publication Critical patent/CN101445049A/en
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Abstract

The invention discloses a method and a device for automobile fuel economy. During the processes of braking, descending or gliding of the automobile, the energy is transformed into the electric energy and the electric energy is fully or partially stored by the storage battery. When the automobile is in idle operation without needing the power output from the engine, the control system stops the fuel supply to the engine and employs the electric energy that is transformed from the energy during the braking, descending or gliding of the automobile or the pre-stored electric energy to drive a motor to rotate the engine, thereby keeping the engine in idle operation. When the automobile needs the power output from the engine, the control system immediately cuts off the electric energy for keeping the engine in idle operation and simultaneously restores the fuel supply to the engine. The method can automatically complete the fuel-saving operation without changing the operation specifications and habits of the driver, and can reduce the fuel consumption by 20% to 60%. The method retains the various indices of the prior automobile, reduces the conventional automobile fuel consumption by the economic way, and also reduces the emission of automobile exhausts.

Description

A kind of method of automobile fuel saving and device
Technical field
The present invention relates to a kind of method and device of method and device, particularly a kind of automobile fuel saving of fuel-economizing, belong to automobile technical field.
Background technology
In short supply along with global oil, oil price is also more and more higher, so people also more and more pay attention to the oil consumption problem of automobile.Influence the principal element of automobile fuel consumption, roughly can be two classes: a class is the factor of automobile self, as deadweight, engine performance, air resistance coefficient etc.; Another kind of is external factor, as driving habit, road conditions etc.Last class belongs to genetic prerequisite, and back one class then belongs to the effort day after tomorrow.In order to save gasoline, chaufeurs have used the whole bag of tricks, but because inborn factor, the effort of chaufeurs is difficult to reach gratifying oil-saving effect.For further fuel-economizing, the automobile research staff has made various effort, and " VVT " (valve Based Intelligent Control) technology is applied to automotive engine, or develops the automobile of other fuel, or uses hybrid power, and its purpose all is in order to save the driving cost.What yet the engines fuel-economizing effect of various application " VVT " technology also just about 10%, substitute fuel vehicle were subjected to that territorial restrictions can't be popularized, the high price of hybrid power vehicle hampers it popularizes; The exhausted major part of the automobile that uses still belongs to fuel engines at present, and the combustion efficiency of fuel engines if list comes fuel-economizing from the rate of combustion that improves fuel oil, also only has the development space about 2%-3% generally near 98%, and oil-saving effect is very little.We find the oily situation of actual usefulness of analysis automotive engine, behind the automobile engine starting, even when automobile does not need engine output power to give wheel (such as descending, slide or during temporary term stop), for keeping the basic status of its operation, also must be idle, when guaranteeing that automobile needs engine output power to give wheel (starting, quicken, when at the uniform velocity travelling or going up a slope), start function in time to output power on the wheel, simultaneously, guarantee that also direction force aid system, brake force aid system, electric system etc. can normally move.In actual the use, automobile is for keeping this basic status, its about 20%~50% of its fuel consumption of having used up! On the other hand, automobile is at descending or when sliding, and again with the resistance of brake and driving engine, goes to consume it at descending or the energy that slides, makes descending or the energy that slides wastes! Once also the someone proposed to stop fuel-economizing scheme to engine oil when automobile does not need engine output power to give wheel, but all reckoned without basic status how to keep automotive operation behind the stop control lever, and this has just brought safety hazard to driving.Simultaneously can not guarantee when automobile needs power, can provide power timely.Also some technical scheme need change the driving habit of chaufeur, or the performance of automobile is produced bigger influence, is not therefore accepted by chaufeur.
Summary of the invention
The objective of the invention is to, provide a kind of oil-saving effect significantly and Installation and Debugging are simple, improvement cost is low, to the method and the device of the less automobile fuel saving of existing vehicle structure influence, it does not need chaufeur to participate in, under the situation that does not change the driver drives vehicle custom fully, full automatic control fuel feeding state, be zero oil consumption state when automobile does not need power, and can guarantee the auto idle speed operation, can provide power for automobile at any time.
The present invention realizes like this, the method of a kind of automobile fuel saving of the present invention is: this method is with braking automobile, descending or the energy when sliding is transformed into the electric energy form by electrical generator, and with all or part of accumulators store of passing through of this electric energy, do not give wheel and only keep when idle when automobile does not need engine output power, stop to engine oil by control system, with braking automobile, descending or the electric energy that is transformed into of the energy when sliding or the electric energy of accumulators store supply with electrical motor, come simulated automotive idle with the driving automobile engine running; When automobile needed engine output power, control system stopped the power supply to the idle electrical motor of simulated automotive immediately, recovered the fuel feeding to automotive engine simultaneously.
Described with braking automobile, descending or the energy when sliding be transformed into the electric energy form by electrical generator, be to send electric energy by wheel or the wheel shaft drive electrical generator that rotates, and the electric energy that electrical generator an is sent part supplies with electrical motor, and another part is stored battery charge.
Described storage battery is provided with two groups, by control system control, during charging to one group of low charging of electric weight; When simulated automotive is idle, provide power supply to electrical motor by high one group of electric weight.
Described control system comprises the micro computer module, and the micro computer module receives braking state signal, throttle signal, electrical motor working state signal, vehicle speed signal and accumulator electric-quantity signal; Micro computer carries out computing according to the program of setting in advance, sends the control of fuel supply signal, discharges and recharges control signal and motor control signal, and fuel feeding state, charging and discharging of accumulator state and the state of motor of automotive engine are controlled.
The automobile fuel-saving device of making according to the method for above-mentioned automobile fuel saving is: this device comprises the micro computer module, the I/O port (input/output end port) of micro computer module respectively be installed in automobile on throttle sensor, brake sensor, vehicle speed signal, the Fuel supply system of automobile, electrical generator, storage battery, electrical motor, automotive engine be connected; The power supply control input end of micro computer module is connected with storage battery with electrical generator, the power supply control output end of micro computer module be installed in automobile on and be connected with storage battery with automotive engine bonded assembly electrical motor.
Electrical motor directly or through motor clutch is connected with the bent axle of automotive engine or the startup arbor of automobile by axle drive shaft, and electrical generator directly or through generator clutch is connected with wheel or axletree by axle drive shaft.
Described Fuel supply system comprises control of fuel supply module and fuel feeding actuating unit, and the micro computer module is connected with the input end of control of fuel supply module, and the mouth of control of fuel supply module is connected with the fuel feeding actuating unit, and the fuel feeding actuating unit is connected with former car fuel oil system.
Described brake sensor is located on the brake pedal of automobile, and described throttle sensor is located on the Das Gaspedal of automobile.
Owing to adopted technique scheme, compared with prior art, method of the present invention be only when the automobile non-refuelling device of the present invention just play a role, in case chaufeur pin step on the accelerator, device SELF CL of the present invention is to the participation of automobile work, inoperative, so the present invention is minimum to the structure and the in-use performance influence of automobile itself.Work as braking automobile, descending, slide or during temporary term stop, chaufeur unclamps throttle, device work of the present invention: stop to engine oil, braking automobile, descending or when sliding, reclaim braking automobile by electrical generator, descending or slide institute's let-loose energy, on the one hand with the higher group storage battery of electric weight together (according to the generate electricity size of energy of electrical generator, at the same time or separately) pass through the motor drives engine rotation with extremely low energy, guarantee idle (promptly with motor drives simulation of engine driving engine idle) of automobile, keep the basic running state of automobile, on the other hand another lower group storage battery of electric weight in two group storage batteries is charged; During the automobile temporary term stop, the higher group storage battery of electric weight by the motor drives engine rotation, guarantees idle (promptly with motor drives simulation of engine driving engine idle) of automobile with extremely low energy, keeps the basic running state of automobile.Because automobile is when sliding at a high speed, particularly when descending, the automobile let-loose energy is greater than keeping the energy that consumes when engine idle moves, and this part energy when temporary term stop, can be kept the basic running state of automobile by accumulators store again.When the work of this device, the control system automatic guidance stops to engine oil.Therefore the oil-saving effect highly significant can reach 20%~60% oil-saving effect.When automobile needs engine output power to give wheel when at the uniform velocity travelling (for example go up a slope, quicken or), chaufeur is stepped on the throttle, device of the present invention is under the control of control system, stop immediately powering to electrical motor, and simultaneously to the fuel feeding of driving engine, SELF CL is to the participation of automobile work, drives running car thereby come drive wheels to rotate with the power of driving engine.So circulation, control system of the present invention is detected automatically by micro computer, and automatic guidance does not need chaufeur to participate in, and does not change the operating instruction of chaufeur, and full automaticity is finished the fuel-economizing process.In general, when running into road ahead or traffic conditions complexity, the situation that needs deceleration, during the chaufeur non-refuelling, usually chaufeur is finished moderating process by slow belt brake, owing to added device of the present invention, after chaufeur unclamped throttle, device of the present invention began by electrical generator to electrical motor power supply and storage battery is charged, and electrical generator provides certain brake weight to automobile, particularly during descending, effect is more obvious, can reduce the friction to former braking automobile like this, reduces the brake heating, improve safety, prolong the brake life-span.Owing to reduced oil consumption, also can reduce the emission of automobile wastes amount, improve the feature of environmental protection, reduced atmospheric contamination.Because adopted above-mentioned effective, practical, economic technical scheme, the present invention can keep every safety index, performance figure and the various function of existing automobile fully in driving procedure.When non-refuelling, the present invention reduces the consumption of fuel of traditional automobile again with economic way.And have the environmental protection effect, so the present invention is a tool fuel-economizing product with broad prospects for development.
At the carburettor of automobile during the epoch, when automobile does not need engine output power to give wheel (such as descending, slide or during temporary term stop), people just make the operation that ins all sorts of ways shutting engine down, to reach the purpose of fuel-economizing.But because automobile is a kind of machine of complexity, the existence of each operating mode all has the meaning that its exists: when automobile does not need engine output power to give wheel (such as descending, slide or during temporary term stop), driving engine can separate with variable transmission mechanism, work in idling operation, also can keep connection with variable transmission mechanism, work in forced idling mode, during idling operation (idling or forced idling mode), though driving engine is not to wheel outputting power (being to the wheel output resistance during forced idling), but driving engine at this moment will keep certain rotating speed on the one hand, preparing against next time need be when the wheel outputting power, can respond the instruction of chaufeur in time, to the wheel outputting power, on the other hand, each mechanical mechanism that guarantee driving engine can have lubricated fully, guarantee the brake power-assisted, the direction power-assisted, electric system ... wait the normal operation of mechanism.In the past people utilize exactly when automobile does not need engine output power to give wheel (such as descending, slide or during temporary term stop), engine operation is in these characteristics of idling operation (idling or forced idling mode), only increasing some simple mechanisms (power-assisted etc. of for example braking) even do not taking fully under the situation of any measure, use the mode of various " cruelties ", stop idling fuel feeding, make engine off reach the purpose of fuel-economizing driving engine.The result of making is like this: the sudden change from stopping working to starting of engine off and driving engine, make each mechanical mechanism of driving engine can not obtain lubricated fully, electric system operation irregularity, safety system does not guarantee or the like ..., cause and be subjected to great influence in safety, performance and the service life etc. of automobile.So the method for oil-break fuel-economizing does not still have a regular auto vendor of family to apply on its volume production product so far, the method for oil-break fuel-economizing is a kind of personal behavior among the people.
Should " oil-break fuel-economizing ", guarantee the normal operation of automobile again, be key technical problem solved by the invention.By big quantitative analysis, practice and summary, we have invented this later-model vehicle fuel saving system: it can reclaim automobile at brake, descending or the energy that slides, uses and is stored with the form of electric energy.When automobile does not need engine output power to give wheel and needs idle (for example brake, descending, slide or during temporary term stop), the fuel-feed system of control driving engine stops to engine oil, utilize and reclaim or electric energy stored, an electrical motor is rotated, the driving automobile driving engine, rotation with electrical motor comes the simulated automotive idling, keeps the basic status of automotive operation; When automobile needs engine output power to give wheel when at the uniform velocity travelling (for example go up a slope, quicken or), stop immediately again powering to electrical motor, the fuel-feed system of control driving engine recovers the fuel feeding to driving engine, thereby comes drive wheels to rotate the driving running car with the power of driving engine.So circulation, through experimental observation, it can reach 20%~60% oil-saving effect.
Experimental example: in order to confirm beneficial effect of the present invention, the applicant surveys with the process of 1.8L discharge capacity method hot-rod of the present invention, from Kweiyang to all sparing, 156 kilometers of strokes, oil consumption 3.2L, average per 100 km oil consumption 2.06L/100km.Travel in the urban district that blocks up at Guiyang City, Guizhou Province majority of streets speed limit 40km/h, the speed of most of times with 10km/h~20km/h loiters, and the consumption of fuel that adds the 1.8L discharge capacity automobile of device of the present invention has controlled to about 5.00L/100km.From above experiment structure as can be known, such oil-saving effect, be at present except that the hybrid power vehicle other vehicle be beyond one's reach.
Description of drawings
Fig. 1 is a structural principle scheme drawing of the present invention;
Fig. 2 is that electrical generator adopts generator clutch and wheel bonded assembly structural representation among the present invention;
Fig. 3 is the functional block diagram of IFO intermediate fuel oil feed system of the present invention;
Fig. 4 is the structural representation of photoelectricity brake sensor among the present invention.
Being labeled as in the accompanying drawing: 1-micro computer module, 2-throttle sensor, 3-brake sensor, 4-vehicle speed signal, the 5-Fuel supply system, 6-electrical generator, 7-storage battery, the 8-electrical motor, 9-wheel, the wheel shaft of 10-wheel, the 11-driving engine, 12-generator clutch, 13-motor clutch, the 14-calibrated disc, 15-sensing element, 16-control of fuel supply module, 17-fuel feeding actuating unit, the former car fuel oil system of 18-, 19-brake pedal.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment, but not as limitation of the present invention.
Embodiments of the invention: the method for automobile fuel saving of the present invention, as shown in Figure 1.This method is with braking automobile, descending or the energy when sliding is transformed into the electric energy form by electrical generator, and with all or part of accumulators store of passing through of this electric energy, promptly wheel or the wheel shaft by rotation drives generator for electricity generation, and the electric energy that electrical generator an is sent part is supplied with electrical motor, another part is stored battery charge, or the electric energy that electrical generator sends is all stored battery charge.Storage battery is provided with two groups, the lower group storage battery of electric weight in two group storage batteries, reclaim the automobile let-loose energy by electrical generator, electrical generator charges to it, another higher group storage battery of electric weight is supplied with the motor drives engine rotation with extremely low energy again simultaneously, guarantee the idle of automobile, keep the basic running state of automobile.Because automobile is when sliding at a high speed, particularly when descending, the automobile let-loose energy is greater than keeping the energy that consumes when engine idle moves, and this part energy is by accumulators store, when temporary term stop, can keep the basic running state of automobile again with the electric energy that stores.When automobile needs engine output power, chaufeur pin step on the accelerator, device of the present invention stops the participation to automobile work automatically, inoperative, therefore the present invention is minimum to the structure and the in-use performance influence of automobile itself, at this moment control system disconnects immediately and keeps the idle electric energy of automotive engine, recovers engine oil simultaneously.Described control system comprises that the micro computer module receives brake signal, throttle signal, electrical motor working state signal, vehicle speed signal and accumulator electric-quantity signal; Micro computer carries out computing according to the program of setting in advance, sends the control of fuel supply signal, discharges and recharges control signal and motor control signal, and fuel feeding state, charging and discharging of accumulator state and the state of motor of driving engine are controlled.
When adopting vehicle oil-saving method of the present invention to make automobile fuel-saving device, it comprises micro computer module 1, it is microcomputer chip and the correspondent peripheral circuit composition of S3C44BOX01 that micro computer module 1 can adopt the model of selling on the market, and micro computer module 1 also can directly adopt the finished product of other model of selling on the market to install; During making, with the I/O port of micro computer module 1 respectively be installed in automobile on throttle sensor 2, brake sensor 3, vehicle speed signal 4, the Fuel supply system 5 of automobile, electrical generator 6, storage battery 7, electrical motor 8,1 of automobile engine 1 be connected; The power supply control input end of micro computer module 1 is connected with storage battery 7 with electrical generator 6, the power supply control output end of micro computer module 1 be installed in automobile on and be connected with storage battery 7 with 1 of automobile engine 1 bonded assembly electrical motor 8.
Make wheel 9 to electrical generator 6 transferring power,, can adopt long-term ways of connecting,, remain the mechanical connection between electrical generator 6 and the wheel 9 no matter promptly whether electrical generator 6 is in generating state in order to save cost.When its generating of micro computer module 1 control, the rotational resistance of electrical generator 6, become the brake weight of wheel 9, the size of this brake weight that is to say that by the size decision of the charging current of micro computer module 1 control charging current is by the dynamics of stepping on brake pedal and speed decision; When 6 generation outages of micro computer module 1 control electrical generator, the rotational resistance of 6 pairs of wheels 9 of electrical generator is the very little mechanical friction resistances of electrical generator 6 self, can disregard; Also can install a generator clutch 12 additional, disconnect with the connection of wheel 9 when electrical generator 6 is not generated electricity, when further reducing electrical generator 6 and not generating electricity to the resistance of wheel 9.Electrical generator 6 is with the connection between the wheel 9, can adopt belt, gear, chain, frictional wheel or mode such as coaxial to connect, and both can adopt wheel shaft 10 ways of connecting with wheel 9, also can adopt directly and wheel 9 ways of connecting.
With electrical motor 8 to driving engine 11 transferring power, when making driving engine 11 simulations idle, in order to save cost, can adopt long-term ways of connecting, no matter promptly whether electrical motor 8 is to driving engine 11 transferring power, remain the bent axle of electrical motor 8 and driving engine 11 or the mechanical connection between the startup arbor, when its drive driving engine 11 simulations of micro computer module 1 control were idle, electrical motor 8 was by driving axial driving engine 11 transferring power of electrical motor 8; When micro computer module 1 control motor 8 during not to driving engine 11 transferring power, the rotational resistance of 8 pairs of driving engines 11 of electrical motor is the very little mechanical friction resistances of electrical motor 8 self, can disregard.Also can install a motor clutch 13 additional, make electrical motor 8 not when driving engine 11 transferring power, with the be connected disconnection of electrical motor 8 with driving engine 11, further reduce electrical motor 8 not when driving engine 11 transferring power to the resistance of driving engine 11.Being connected between the axle drive shaft of electrical motor 8 and the driving engine 11, can adopt belt, gear, chain, frictional wheel or mode such as coaxial to connect, electrical motor 8 both can be connected with the bent axle of driving engine 11, also can be connected with the driving engine end of automobile starting arbor.
Brake sensor 3 is installed on the brake pedal of automobile, throttle sensor 2 is installed on the Das Gaspedal of automobile.Brake sensor 3 or throttle sensor 2 can adopt various angle of the prior art or position sensing components and parts.
Above-mentioned Fuel supply system 5 as shown in Figure 3, it comprises control of fuel supply module 16 and fuel feeding actuating unit 17, micro computer module 1 is connected with the input end of control of fuel supply module 16, the mouth of control of fuel supply module 16 is connected with fuel feeding actuating unit 17, control of fuel supply module 16 and fuel feeding actuating unit 17 can utilize the device on the existing automobile, and fuel feeding actuating unit 17 is connected with former car fuel oil system 18.Micro computer module 1 is sent the fuel oil make-and-break signal to control of fuel supply module 16, and this signal is carried out the break-make of fuel delivery through fuel feeding actuating unit 17 to former car fuel oil system 18.The mode that former car fuel oil system 18 is carried out the fuel delivery break-make can realize with following several modes:
1) open or close the fuel feed pipe of former car fuel oil system 18: fuel feeding actuating unit 17 controls at this moment are connected on the electromagnetic valve on former car fuel oil system 18 fuel feed pipes, receive the instruction of micro computer module 1 when control of fuel supply module 16, control of fuel supply module 16 is through 17 unlatchings of fuel feeding actuating unit or close the electromagnetic valve that is connected on former car fuel oil system 18 fuel feed pipes, directly opens or close the fuel feed pipe of former car fuel oil system 18.
2) open, close the oil feed pump of former car fuel oil system 18: at this moment fuel feeding actuating unit 17 is an electronic switching circuit (as electronic switching circuits of compositions such as relay, silicon control, transistor), this electronic switching circuit is controlled oil feed pump in the former car fuel oil system 18, and whether the oil feed pump of controlling former car fuel oil system 18 is to driving engine 11 fuel feeding.
3) open, close the spraying nipple of former car fuel oil system 18: at this moment fuel feeding actuating unit 17 is an electronic switching circuit (as electronic switching circuits of compositions such as relay, silicon control, transistor), this electronic switching circuit is controlled spraying nipple in the former car fuel oil system 18, and whether the spraying nipple of controlling former car fuel oil system 18 carries out oil spout to the cylinder of driving engine 11.
4) give former car computer fuel cock signal, revise the program of former car computer, make former car computer cooperate the spraying nipple of the former car fuel oil system 18 of micro computer module 1 control whether the cylinder of driving engine 11 to be carried out oil spout about fuel delivery.
Detect the chaufeur pedal of whether stepping on the throttle, throttle sensor 2 is a simple travel switch, the pedal as long as whether the detection chaufeur steps on the throttle, just can make the travel switch action, thereby give 1 one electric impulse signals of micro computer module, realize whether the step on the throttle detection of pedal of chaufeur, concrete implementation, or adopt photoelectricity, permanent magnet, mechanical contact, capacitive in the prior art, hypracoustic or the like a lot of modes that detect.
Detect chaufeur and step on the speed and strength of brake pedal 19, step on the speed signal and the dynamics signal of brake pedal detecting chaufeur, be transformed into electric impulse signal and finish by brake sensor 3.Detect chaufeur and step on the speed of brake pedal, can be operated fixedly counting of process by the detection brake pedal unit time realizes, in the prior art, have photoelectricity, permanent magnet, mechanical contact, capacitive or the like multiple mode to realize, also can adopt generator-type, variable-resistance more mode realizes; Detect chaufeur and step on the dynamics of brake pedal, can be operated fixedly counting of process by the detection brake pedal and realize that similar detection chaufeur is stepped on the mode of the speed of brake pedal, in the prior art, the mode of a lot of detections is arranged also.The scheme drawing of wherein a kind of photoelectricity brake sensor of Fig. 4 the present invention.It comprises calibrated disc 14 and is located near the calibrated disc 14 sensing element 15.
Storage battery 7 adopts two groups of A, B, two groups standby each other, by micro computer module 1 control charge and discharge, one group of low charging of dump energy in A, B group storage battery always during charging is always powered to electrical motor 8 by high one group of dump energy in A, the B group storage battery during discharge.
Vehicle speed signal 4 can be obtained by the computer or the average speed indicator of former car.
Working process of the present invention:
1, charging, oil-break and simulation idling work process
Automobile at brake, descending, slide or during temporary term stop, if the pin of automobile driver leaves throttle, after throttle sensor 2 detects and unclamps throttle, send throttle closing signal to micro computer module 1, send instruction through 1 processing of micro computer module, carry out following operation simultaneously:
1), the time-delay 0.5~10 second after, send the stop control lever signal to Fuel supply system 5, stop to driving engine 11 fuel feeding.
2), to electrical motor 8 power supplies, it is idle with the rotating speed rotary simulation of idling to make electrical motor 8 drive driving engines 11 for instruction electrical generator 6 or storage battery 7 (in A, the B group storage battery dump energy high one group).
3), micro computer module 1 judges following two kinds of situations, sends corresponding instruction:
If a) vehicle speed signal 4 is given the signal of micro computer module 1, determine the speed of a motor vehicle 〉=5km/h, the signal that micro computer module 1 is just sent here according to brake sensor 3, judge dynamics that brake is stepped on and speed, control electrical generator 6 adopts corresponding electric currents (or voltage) to charge to electrical motor 8 power supplies and to storage battery 7 (in A, the B group storage battery dump energy low a group).
B) if giving the signal of micro computer module 1, vehicle speed signal 4 determines the speed of a motor vehicle<5km/h, micro computer module 1 just thinks that automobile stops, cut off electrical generator to the feed circuit of electrical motor 8 power supplies and to storage battery 7 electrically-charged charges circuit, stop to power and charging to storage battery 7 to electrical motor 8.
2, guarantee the takeoff output process of driving engine:
Automobile is when going up a slope, quickening or at the uniform velocity travelling, behind the pin contact throttle of automobile driver, after throttle sensor 2 detects, send throttle to micro computer module 1 and stepped on signal, stop the operation that petroleum economizer of the present invention participates in automobile, make automobile recover the mode of operation of former car, the performance of assurance automobile is not subjected to the influence of this economizer system, the original performance level of performance automobile.

Claims (8)

  1. The method of [claim 1] a kind of automobile fuel saving, it is characterized in that: this method is with braking automobile, descending or the energy when sliding is transformed into the electric energy form by electrical generator, and with all or part of accumulators store of passing through of this electric energy, do not give wheel and only keep when idle when automobile does not need engine output power, stop to the automotive engine fuel feeding by control system, with braking automobile, descending or the electric energy that is transformed into of the energy when sliding or the electric energy of accumulators store supply with electrical motor, come simulated automotive idle with the driving automobile engine running; When automobile needed engine output power, control system stopped the power supply to the idle electrical motor of simulated automotive immediately, recovered the fuel feeding to automotive engine simultaneously.
  2. The method of [claim 2] automobile fuel saving according to claim 1, it is characterized in that: described with braking automobile, descending or the energy when sliding be transformed into the electric energy form by electrical generator, be to send electric energy by wheel or the wheel shaft drive electrical generator that rotates, and the electric energy that electrical generator an is sent part supplies with electrical motor, and another part is stored battery charge.
  3. The method of [claim 3] automobile fuel saving according to claim 1 and 2 is characterized in that: described storage battery is provided with two groups, by control system control, during charging to one group of low charging of electric weight; When simulated automotive is idle, provide power supply to electrical motor by high one group of electric weight.
  4. The method of [claim 4] automobile fuel saving according to claim 1, it is characterized in that: described control system comprises the micro computer module, and the micro computer module receives braking state signal, throttle signal, electrical motor working state signal, vehicle speed signal and accumulator electric-quantity signal; Micro computer carries out computing according to the program of setting in advance, sends the control of fuel supply signal, discharges and recharges control signal and motor control signal, and fuel feeding state, charging and discharging of accumulator state and the state of motor of automotive engine are controlled.
  5. The automobile fuel-saving device that [claim 5] made according to the method for the described automobile fuel saving of the arbitrary claim of claim 1 to 4, it is characterized in that: this device comprises micro computer module (1), the I/O port of micro computer module (1) respectively be installed in automobile on throttle sensor (2), brake sensor (3), vehicle speed signal (4), the Fuel supply system (5) of automobile, electrical generator (6), storage battery (7), electrical motor (8), automotive engine (11) be connected; The power supply control input end of micro computer module (1) is connected with storage battery (7) with electrical generator (6), the power supply control output end of micro computer module (1) be installed in automobile on and be connected with storage battery (7) with automotive engine (11) bonded assembly electrical motor (8).
  6. [claim 6] automobile fuel-saving device according to claim 5, it is characterized in that: electrical motor (8) directly or through motor clutch (13) is connected with the bent axle of automotive engine (11) or the startup arbor of automobile by axle drive shaft, and electrical generator (6) directly or through generator clutch (12) is connected with wheel (9) or axletree (10) by axle drive shaft.
  7. [claim 7] automobile fuel-saving device according to claim 5, it is characterized in that: described Fuel supply system (5) comprises control of fuel supply module (16) and fuel feeding actuating unit (17), micro computer module (1) is connected with the input end of control of fuel supply module (16), the mouth of control of fuel supply module (16) is connected with fuel feeding actuating unit (17), and fuel feeding actuating unit (17) is connected with former car fuel oil system (18).
  8. [claim 8] automobile fuel-saving device according to claim 5 is characterized in that: described brake sensor (3) is located on the brake pedal of automobile, and described throttle sensor (2) is located on the Das Gaspedal of automobile.
CNA2008103031504A 2008-07-17 2008-07-29 Method and device for automobile fuel economy Pending CN101445049A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200810302773.X 2008-07-17
CN200810302773 2008-07-17
CNA2008103031504A CN101445049A (en) 2008-07-17 2008-07-29 Method and device for automobile fuel economy

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Application Number Priority Date Filing Date Title
CNA2008103031504A CN101445049A (en) 2008-07-17 2008-07-29 Method and device for automobile fuel economy

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CN101445049A true CN101445049A (en) 2009-06-03

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Cited By (3)

* Cited by examiner, † Cited by third party
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CN102485586A (en) * 2010-12-02 2012-06-06 西安大昱光电科技有限公司 Control system of electric bicycle with power generation function
CN102575561A (en) * 2009-07-27 2012-07-11 通用电气公司 Thermal management system, vehicle, and associated method
CN103596829A (en) * 2011-06-10 2014-02-19 斯堪尼亚商用车有限公司 Method and system for a vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102575561A (en) * 2009-07-27 2012-07-11 通用电气公司 Thermal management system, vehicle, and associated method
CN102485586A (en) * 2010-12-02 2012-06-06 西安大昱光电科技有限公司 Control system of electric bicycle with power generation function
CN103596829A (en) * 2011-06-10 2014-02-19 斯堪尼亚商用车有限公司 Method and system for a vehicle

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