CN1021988C

CN1021988C - Forced idling method of automobile for oil-saving

Info

Publication number: CN1021988C
Application number: CN 91100390
Authority: CN
Inventors: 谭卫国
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-18
Filing date: 1991-01-18
Publication date: 1993-09-01
Anticipated expiration: 2006-01-18
Also published as: CN1063336A

Abstract

The present invention provides a forced idling method of automobiles for oil saving. A clutch of an automobile, a speed variator and a gasoline throttle are provided with contact switches which are connected with an electromagnetic valve in series in a circuit. When the clutch is switched on, the speed variator is shifted and the gasoline throttle is in an idling position, the switches are respectively contacted to make the circuit switched off; the electromagnetic valve stops an idling oil passage or simultaneously stops the oil supply of the idling oil passage and a main oil supply passage. For a diesel engine automobile, electromagnetic inspiration controls the oil supply of an oil injection pump. The method of the present invention has the advantages of flexible action, practicality, reliability, no need of using a pneumatic element, and can avoid the phenomena of the 'oil choke' and the 'automatic ignition' of an automobile engine.

Description

Forced idling method of automobile for oil-saving

The present invention relates to the fuel saving method of a kind of automobile when forced idling mode, be applicable to the automobile of petrol engine and diesel engine.

Automobile under steam, motor is in forced idling mode through regular meeting, as landslide not out of supply, utilize engine retard braking and turning, meeting, the deceleration when keeping away obstacle detouring and hindering and gearshift procedure etc., all contain the forced idling mode that motor produces negative torque.This moment, motor did not obviously need fuel oil.But at this moment conventional carburetor still constantly causes idle oil consumption from idler nozzle ejection fuel oil.Account for the 8-10% of whole oil consumption according to statistics.Waste gas coefficient height made burn deterioration when motor was worked at forced idling mode, and blowdown (HC) increases.For fuel-economizing and minimizing pollution, the controlling method of cutting off the idling fuel feeding when forced idling mode has automatically all been studied by domestic and international many producers, for example Fig. 7-46 of the 375th page has introduced a kind of electronic controlling type vacuum deacceleration fuel shut-off device in " vehicle energy saving principle and measure " book of Fujian People's Press publication in 1986, this fuel economizer device is made up of a vacuum bellows and two solenoid valves, the vacuum bellows is positioned at closed throttle position below 1 millimeter, the degree of vacuum increase of during forced idling because closure below, inhale dynamic diaphragm and make make contact, two solenoid valves are worked simultaneously and are cut off the oil supply gallery of idle fuel way and float chamber respectively, to reach the purpose of fuel-economizing.Fuel cut-off when this device can be realized forced idling, but deficiency is to adopt the vacuum bellows accurately responsive to degree of vacuum, the vacuum components and parts of this precision break down and misoperation under the operating mode of engine luggine easily, be difficult to adjust and safeguard, in fact enforcement is very difficult, and can't use on diesel-engined vehicle.Should be noted that, the anti-information such as moment of torsion of dragging that existing forced idling fuel saving method generally records with intake depression, engine speed, from wheel are as control information, also do not go to open up more reliably from the driving operation process, forced idling fuel-saving control information generator accurately.

The objective of the invention is to avoid above-mentioned deficiency of the prior art and a kind of information of obtaining forced idling from the driving operation rule is provided and in time cuts off the practical approach of idling fuel feeding.

Technical conceive of the present invention is such: in the driving operation process, forced idling mode must satisfy following three conditions: the one, and clutch, the 2nd, speed changer files, and the 3rd, throttle is in idle position.The state that these three conditions are possessed simultaneously goes control electromagnetic valve to cut off the idling fuel feeding as the information of forced idling, just can reach the purpose of forced idling mode fuel-economizing.

Purpose of the present invention can realize by the following technical solutions: idling oil circuit and carburetor main fuel feeding road during with electromagnetic valve device control forced idling mode, form circuit by power supply, key operation, switch, tutorial light and solenoid valve, its switch comprises and is separately positioned on clutch, the contact-making switch of the mutual series connection on speed changer and the throttle.Circuit power utilizes car accumulator to make DC electrical source, on the idle fuel way of engine and carburetor and main fuel feeding road, a solenoid valve is set respectively, become the contact-making switch of series circuit to be installed in respectively on the suitable position of clutch, speed changer and throttle with electromagnetic valve group with three, when clutch, speed changer file, can touch respectively when throttle is in idle position each contact-making switch closing of circuit is communicated with, solenoid valve promptly moves and cuts off two oil ducts simultaneously, ends to engine oil.Tutorial light can be set to monitor the working condition of fuel-economizing circuit in the circuit.To the automobile of diesel engine, change solenoid valve into electromagnetism and inhale, its armature links to each other with shutdown handle on the Injection Pump, and when electromagnetism was inhaled action, armature drove the " STOP " position with handle, ended to engine oil, to reach the fuel-economizing purpose.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the structural representation that circuit of the present invention is installed in gasoline engine car.Among the figure: 1, battery main switch.2, car direct current power supply, 3, key operation, 4,5,6, micro-contact switch, 7,11, solenoid valve, 8, tutorial light, 9, idle fuel way, 10, main fuel feeding road, 12, float chamber, 13, idle adjusting screw.

Fig. 2 a and Fig. 2 b are installation and the work schematic representation of sensitive switch (4) at clutch.Among the figure: 14, clutch pedal shaft, 15, clutch pedal lever, 16, clutch foot plate.

Fig. 3 a and Fig. 3 b are installation and the work schematic representation of sensitive switch (5) on speed changer.Among the figure: 17, roller, 18, have a switch touch panel of recess, 19, pressure spring, 20, the touch panel axle, 21, gear shift cover, 22, declutch shift shaft, 23, roller arm.

Fig. 4 a and Fig. 4 b are installation and the work schematic representation of sensitive switch (6) on gas pedal.Among the figure: 24, throttle push rod, 25, the operator cabin base plate, 26, the switch contact arm, 27, gas pedal.

Fig. 5 a and 5b are that electromagnetism is inhaled the work schematic representation that is installed on the diesel-engined vehicle Injection Pump.Among the figure: 28, shutdown handle axle, 29, shutdown handle, 30, electromagnetism inhales armature.

Below in conjunction with accompanying drawing in detail embodiments of the invention are described in detail:

Press circuit and the structure of Fig. 1, at first on the idle fuel way (9) of Carburetor, solenoid valve (7) is set,, also solenoid valve (11) can be set simultaneously on carburetor main fuel feeding road (10) in order to prevent " fuel fouling " phenomenon.Sensitive switch (4) is installed in the top of clutch pedal lever (15) by the position of Fig. 2 a, and when clutch pedal (16) when being operated, sensitive switch (4) disconnects (as Fig. 2 b), when recovering jointing state, and sensitive switch (4) closure.Sensitive switch (5) is installed on the gear shift cover (21) by the position of Fig. 3 a, the switch touch panel (18) that has a recess be arranged on gear shift cover (21) below, roller arm (23) is installed in the end of declutch shift shaft (22).When transmission neutral, roller (17) is in the recess of touch panel (18), and pressure spring (19) disconnects sensitive switch (5), when speed changer files, declutch shift shaft (22) moves forward and backward, and with touch panel (18) jack-up, makes sensitive switch (5) closed (as Fig. 3 b) by roller (17).Sensitive switch (6) is installed in the top of switch contact arm (26) by the position of Fig. 4 a, and when gas pedal (27) when stepping on, sensitive switch (6) disconnects (as Fig. 4 b), when gas pedal (27) is unclamped when being in idle position sensitive switch (6) closure.Drawing lead by the circuit of Fig. 1 from " I " point of key operation (3) is connected in series sensitive switch (4), (5), (6) and solenoid valve (7), when three sensitive switches are closed simultaneously, it is exactly forced idling mode, solenoid valve (7) promptly moves and blocks idle fuel way or block two oil ducts simultaneously by solenoid valve (7) and the solenoid valve (11) in parallel with it, stops to engine oil.When any one disconnecting circuit in three sensitive switches (4), (5), (6), illustrate that promptly the forced idling state removes, solenoid valve (7) and (11) the recovery normal fuel injection that promptly resets.The tutorial light (8) in parallel with solenoid valve (7) can be installed in the working condition that monitors the fuel-economizing circuit on the instrument panel for the driver." O " of key operation (3) point is a cut-off point, and it directly is communicated with solenoid valve (7), makes closing key when flame-out, and solenoid valve (7) moves and fuel cut-off immediately, avoids " lighting a fire voluntarily " phenomenon and the inertia rotation oil consumption of motor.

Automobile for diesel engine, changing solenoid valve (7) into electromagnetism inhales, by the position of Fig. 5 a electromagnetism is inhaled and to be installed on the Injection Pump, its armature (30) connects (generally diesel car all is provided with this handle, and former is manual) with shutdown handle (29) on the Injection Pump.When sensitive switch (4), (5), (6) closure, electromagnetism is inhaled action, and armature (30) drives shutdown handle (29) and turns to " STOP " position (as Fig. 5 b), and Injection Pump promptly ends to engine oil.During switch-off,, can realize that oil-break is flame-out because " O " of key operation (3) point is inhaled direct UNICOM with electromagnetism in Fig. 1 circuit.

Utilize method of the present invention on motorcycle, also can realize the forced idling fuel-economizing.

The present invention compared with prior art has following advantage:

1, from the definite information of driver behavior Procedure Acquisition forced idling, that blocks fuel feeding and recovery fuel feeding is active in one's movements in time the rate of economizing gasoline height.

2, all equally suitable to gasoline or diesel-engined vehicle, do not increase the operation burden.

3, need not use pneumatic element, the precision of having avoided pneumatic element is high and cause the difficulty of misoperation and manufacturing, adjustment, maintenance.

4, the execution of oil-break action and engine air inlet tube degree of vacuum are irrelevant, therefore are not subjected to the influence of altitude.

5, can avoid the phenomenon of " fuel fouling " and " igniting voluntarily " to take place.

6, circuit theory and apparatus structure are all simple and practical, and be with low cost, and technical easy enforcement is easy to maintenance.

Claims

1, a kind of forced idling method of automobile for oil-saving, this method is idling oil circuit and the carburetor main fuel feeding road when controlling forced idling mode with electromagnetic valve device, comprise by power supply, key operation, contact-making switch, the circuit that tutorial light and solenoid valve are formed, it is characterized in that, described contact-making switch comprises that being separately positioned on clutch steps on the utmost point, the contact-making switch of the mutual polyphone on speed changer and the throttle, work as clutch, speed changer files, when throttle is in rapidly the position, can touch each contact-making switch respectively closing of circuit is communicated with, solenoid valve promptly moves and cuts off two oil circuits simultaneously by to engine oil.

2, by the described forced idling method of automobile for oil-saving of claim 1, the contact-making switch (5) that it is characterized in that being arranged on the speed changer is installed on the gear shift cover (21), the switch touch panel (18) that has a recess be arranged on gear shift cover (21) below, roller arm (23) is arranged on declutch shift shaft (22) end, when transmission neutral, roller (17) is in the recess of touch panel (18), by pressure spring (19) contact-making switch (5) is disconnected; When speed changer filed, declutch shift shaft (22) moved forward and backward, and with touch panel (18) jack-up, made contact-making switch (5) closure by roller (17).

3, by claim 1 or 2 described forced idling method of automobile for oil-saving, the contact-making switch (6) that it is characterized in that being arranged on throttle is installed in the top of the switch contact arm (26) at gas pedal (27) back side.