WO2008114277A2 - An imporved solenoid valve for regulating speed of an automobile, a method and an automobile - Google Patents

An imporved solenoid valve for regulating speed of an automobile, a method and an automobile Download PDF

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Publication number
WO2008114277A2
WO2008114277A2 PCT/IN2008/000150 IN2008000150W WO2008114277A2 WO 2008114277 A2 WO2008114277 A2 WO 2008114277A2 IN 2008000150 W IN2008000150 W IN 2008000150W WO 2008114277 A2 WO2008114277 A2 WO 2008114277A2
Authority
WO
WIPO (PCT)
Prior art keywords
solenoid valve
automobile
solenoid
valve
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IN2008/000150
Other languages
French (fr)
Other versions
WO2008114277A8 (en
Inventor
Ramaswamy Radhakrishnan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pricol Ltd
Original Assignee
Pricol Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pricol Ltd filed Critical Pricol Ltd
Priority to EP08751426A priority Critical patent/EP2134565A2/en
Publication of WO2008114277A2 publication Critical patent/WO2008114277A2/en
Publication of WO2008114277A8 publication Critical patent/WO2008114277A8/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/02—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism
    • B60K31/04—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0056—Throttling valves, e.g. having variable opening positions throttling the flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0616—Position of fuel or air injector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine

Definitions

  • the present invention relates to a speed regulating device for an automobile, more particularly related to an improved solenoid valve for regulating the speed of an automobile.
  • the speed is regulated by controlling amount of fuel entering inside an engine.
  • the amount of fuel dispensed from the solenoid valve depends on signals provided by electronic circuits to connector.
  • the need for the speed control devices are developed based on safety aspect in usage of an automobile in public environment. There are various ways from which the speed of the automobile is controlled.
  • the solenoid valve based speed control devices are cost effective and proven to be reliable.
  • the speed control systems uses, concept of varying fuel supply to the engine according to the demands made on the engine during the use of the vehicle and based on set speed of the vehicle.
  • the principal object of the present invention is to develop an improved solenoid valve for regulating speed of an automobile.
  • Yet another object of the invention is to develop an automobile comprising an improved solenoid valve.
  • the invention provides an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile, a method of regulating speed of an automobile comprises acts of; varying auxiliary port (8) opening of solenoid valve using an adjusting screw (4) provided at bottom of the solenoid valve to have predetermined speed of the automobile; varying input frequency of an Electronic Control Unit (ECU) of the solenoid valve for transmitting voltage signals to connectors (11) at solenoid part; and actuating solenoid coil (10) of the solenoid valve by signals of connector for plunger (9) to regulate the speed of the automobile, and an automobile comprising an improved solenoid valve. • .
  • Figure 1 shows the sectional view of the solenoid valve.
  • Figure 2 (a) shows the flow diagram of solenoid valve when the valve is in non- energized condition and the adjusting screw is in closed condition.
  • Figure 2 shows the flow diagram of solenoid valve when and solenoid valve is in non-energized condition and the adjusting screw is in fully opened condition Figure 2.
  • the present invention is in relation to an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile.
  • ECU Electronic Control Unit
  • the solenoid part comprises a plunger (9) at main port (7) of the solenoid valve surrounded by solenoid coil (10) for regulating fuel supply to outlet port (2); and the valve part mounted below the solenoid part comprises a stationary wall (12) adjacent to the main port (7) along with the combination of the plunger (9) and the adjusting screw (4) for regulation of the fuel supply from inlet port (1) to the outlet port (2).
  • the adjusting screw (4) is operated to alter auxiliary port (8) of the solenoid valve.
  • auxiliary port (8) regulates the fuel supply to the automobile for predetermined speed.
  • valve part is made from material selected from a group comprising brass and stainless steel.
  • ECU Electronic Control Unit
  • the plunger (9) regulates the fuel supply to the automobile for speed control through main port (7) of the solenoid valve.
  • the plunger (9) moves in upward and downward directions for opening and closing of the main port (7) respectively.
  • the main port (7) is opened and closed by the plunger (9) when the solenoid coil (10) is in an energized state and in non- energized state respectively.
  • the present invention is in relation to an automobile comprising an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile.
  • ECU Electronic Control Unit
  • Solenoid valve comprises of valve part and solenoid part, the solenoid valve has an inlet port (1) and an outlet port (2) at fuel supply line.
  • An adjusting screw (4) is mounted inside a screw holder (5) at the bottom of solenoid valve (referring to figure
  • FIG. 2 illustrates during the open condition of the valve, the fuel will flow through the inlet port (1), and reach the outlet port (2) via the main port (7) and auxiliary port (8).
  • the auxiliary port (8) opening is varied using the adjusting screw (4) to set the predetermined speed of the automobile [figure 2 (b)].
  • the main port (7) is made close and open using the plunger (9) which depends on the speed of automobile [figure 2 (c)].
  • the required quantity of fuel for the automobile is made available at this condition is attained by varying the frequency to Electronic Control Unit (ECU) for transmitting voltage signals to connectors (11) and then to actuate the solenoid coil (10).
  • ECU Electronic Control Unit
  • the solenoid valve is provided with a special connector (11) through which is input for the solenoid coil (10) is provided.
  • the connector (11) is an environmentally sealed type.
  • the wiring harness used withstands high temperature .
  • the connector (11) ensures the solenoid coil (10) input considering usage of the automobile in all the possible environment conditions.
  • the valve portion is made of the brass material and stainless steel material, which are more reliable for automotive fuel application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

La présente invention concerne un dispositif de régulation de vitesse pour une automobile, plus particulièrement une électrovanne améliorée pour réguler la vitesse d'une automobile. La vitesse est régulée en contrôlant le volume de carburant qui entre à l'intérieur d'un moteur. Le volume de carburant distribué depuis l'électrovanne dépend des signaux fournis par les circuits électroniques au connecteur.The present invention relates to a speed control device for an automobile, more particularly to an improved solenoid valve for regulating the speed of an automobile. The speed is regulated by controlling the volume of fuel entering an engine. The volume of fuel dispensed from the solenoid valve depends on the signals provided by the electronic circuits to the connector.

Description

AN IMPROVED SOLENOID VALVE FOR REGULATING SPEED OF AN AUTOMOBILE, A METHOD AND AN AUTOMOBILE
FIELD OF THE INVENTION
The present invention relates to a speed regulating device for an automobile, more particularly related to an improved solenoid valve for regulating the speed of an automobile. The speed is regulated by controlling amount of fuel entering inside an engine. The amount of fuel dispensed from the solenoid valve depends on signals provided by electronic circuits to connector.
BACKGROUND OF THE INVENTION
The need for the speed control devices are developed based on safety aspect in usage of an automobile in public environment. There are various ways from which the speed of the automobile is controlled. The solenoid valve based speed control devices are cost effective and proven to be reliable. The speed control systems uses, concept of varying fuel supply to the engine according to the demands made on the engine during the use of the vehicle and based on set speed of the vehicle.
In the existing trends for example US 4,177,774 provides a means to control the supply of fuel to the engine to maintain the vehicle running at a constant speed. The vehicle requires speed monitoring system for speed regulation. The fuel demand by the engine is gauged by the degree of vacuum attained in the vehicle inlet manifold and this vacuum is utilized to control a servo-mechanism operating on the vehicle throttle. The controlling in fuel supply to the engine maintains constant speed.
OBJECTS OF THE INVENTION
The principal object of the present invention is to develop an improved solenoid valve for regulating speed of an automobile.
Yet another object of the invention is to ensure fuel supply through auxiliary port to engine even though the main port is closed by plunger of the solenoid valve. Yet another object of the invention is to provide a method of regulating speed of an automobile.
Yet another object of the invention is to develop an automobile comprising an improved solenoid valve.
STATEMENT OF THE INVENTION
Accordingly the invention provides an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile, a method of regulating speed of an automobile comprises acts of; varying auxiliary port (8) opening of solenoid valve using an adjusting screw (4) provided at bottom of the solenoid valve to have predetermined speed of the automobile; varying input frequency of an Electronic Control Unit (ECU) of the solenoid valve for transmitting voltage signals to connectors (11) at solenoid part; and actuating solenoid coil (10) of the solenoid valve by signals of connector for plunger (9) to regulate the speed of the automobile, and an automobile comprising an improved solenoid valve. • .
BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
Figure 1: shows the sectional view of the solenoid valve.
Figure 2 (a): shows the flow diagram of solenoid valve when the valve is in non- energized condition and the adjusting screw is in closed condition.
Figure 2 (b): shows the flow diagram of solenoid valve when and solenoid valve is in non-energized condition and the adjusting screw is in fully opened condition Figure 2. (c): shows the flow diagram of solenoid valve when solenoid energized condition and the adjusting screw is in fully opened condition.
DETAIL DESCRIPTION OF THE INVENTION
The present invention is in relation to an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile.-
In yet another embodiment of the present invention the solenoid part comprises a plunger (9) at main port (7) of the solenoid valve surrounded by solenoid coil (10) for regulating fuel supply to outlet port (2); and the valve part mounted below the solenoid part comprises a stationary wall (12) adjacent to the main port (7) along with the combination of the plunger (9) and the adjusting screw (4) for regulation of the fuel supply from inlet port (1) to the outlet port (2).
In still another embodiment of the present invention the adjusting screw (4) is operated to alter auxiliary port (8) of the solenoid valve.
In still another embodiment of the present invention the auxiliary port (8) regulates the fuel supply to the automobile for predetermined speed.
In still another embodiment of the present invention the valve part is made from material selected from a group comprising brass and stainless steel.
The present invention is in relation to a method of regulating speed of an automobile comprises acts of; varying auxiliary port (8) opening of solenoid valve using an adjusting screw (4) provided at bottom - of the solenoid valve to have predetermined speed of the automobile, varying input frequency of an Electronic Control Unit (ECU) of the solenoid valve for transmitting voltage signals to connectors (11) at solenoid part; and actuating solenoid coil (10) of the solenoid valve by signals of connector for plunger (9) to regulate the speed of the automobile.
In still another embodiment of the present invention the variation in auxiliary port (8) opening is manually operated.
In still another embodiment of the present invention the plunger (9) regulates the fuel supply to the automobile for speed control through main port (7) of the solenoid valve.
In still another embodiment of the present invention the plunger (9) moves in upward and downward directions for opening and closing of the main port (7) respectively. In still another embodiment of the present invention the main port (7) is opened and closed by the plunger (9) when the solenoid coil (10) is in an energized state and in non- energized state respectively.
The present invention is in relation to an automobile comprising an improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile.
Solenoid valve comprises of valve part and solenoid part, the solenoid valve has an inlet port (1) and an outlet port (2) at fuel supply line. An adjusting screw (4) is mounted inside a screw holder (5) at the bottom of solenoid valve (referring to figure
I)-
Leakages of fuel in-between the adjusting screw (4) at valve body (3) and the screw holder (5) is arrested by usage of o-ring (6). The solenoid valve is connected to power supply ranging 12 volts to 24 volts, wherein solenoid coil (10) of the valve gets actuated and an emf is produced, this produced emf is used for the making the plunger (9) present in valve to move in the upward direction, whereas in the absence of the power supply the plunger (9) will regains its original position in downward direction by the spring force [figure 2 (b)]. Figure 2 (a) illustrates a state of valve wherein the main port (7) and the auxiliary port (8) is completely closed. This closed condition of both ports does not provide fuel supply to engine.
Figure 2 illustrates during the open condition of the valve, the fuel will flow through the inlet port (1), and reach the outlet port (2) via the main port (7) and auxiliary port (8). The auxiliary port (8) opening is varied using the adjusting screw (4) to set the predetermined speed of the automobile [figure 2 (b)]. The main port (7) is made close and open using the plunger (9) which depends on the speed of automobile [figure 2 (c)]. The required quantity of fuel for the automobile is made available at this condition is attained by varying the frequency to Electronic Control Unit (ECU) for transmitting voltage signals to connectors (11) and then to actuate the solenoid coil (10). In case of fully closed state of main port (7) by the plunger (9) the minimum flow of fuel to engine is ensured via setting of auxiliary port (8) opening. Hence, the engine is ensured with the minimum amount of fuel for functioning. The solenoid coil (10) is controlled through an external circuit to perform as proportional flow control valve.
The solenoid valve is provided with a special connector (11) through which is input for the solenoid coil (10) is provided. The connector (11) is an environmentally sealed type. The wiring harness used withstands high temperature .The connector (11) ensures the solenoid coil (10) input considering usage of the automobile in all the possible environment conditions.
The valve portion is made of the brass material and stainless steel material, which are more reliable for automotive fuel application.

Claims

We claim;
1. An improved solenoid valve comprising a connector at solenoid part for supplying input signals to solenoid coil (10) from an Electronic Control Unit (ECU), and a screw holder (5) holding an adjusting screw (4) at bottom of valve part, wherein the valve part is mounted below the solenoid part to regulate speed of an automobile.
2. The improved solenoid valve as claimed in claim 1, wherein the solenoid part comprises a plunger (9) at main port (7) of the solenoid valve surrounded by solenoid coil (10) for regulating fuel supply to outlet port (2); and the valve part mounted below the solenoid part comprises a stationary wall (12) adjacent to the main port (7) along with the combination of the plunger (9) and the adjusting screw (4) for regulation of the fuel supply from inlet port (1) to the outlet port (2).
3. The improved solenoid valve as claimed in claim 1, wherein the adjusting screw (4) is operated to alter auxiliary port (8) of the solenoid valve.
4. The improved solenoid valve as claimed in. claim 3, wherein the auxiliary port (8) regulates the fuel supply to the automobile for predetermined speed.
5. The improved solenoid valve as claimed in claim 1, wherein the valve part is made from material selected from a group comprising brass and stainless steel.
6. A method of regulating speed of an automobile comprises acts of; a. varying auxiliary port (8) opening of solenoid valve using an adjusting screw
(4) provided at bottom of the solenoid valve to have predetermined speed of the automobile, b. varying input frequency of an Electronic Control Unit (ECU) of the solenoid valve for transmitting voltage signals to connectors (11) at solenoid part; and c. actuating solenoid coil (10) of the solenoid valve by signals of connector for plunger (9) to regulate the speed of the automobile.
7. The method as claimed in claim 6, wherein the variation in auxiliary port (8) opening is manually operated.
8. The method as claimed in claim 6, wherein the plunger (9) regulates the fuel supply to the automobile for speed control through main port (7) of the solenoid valve.
9. The method as claimed in claim 6, wherein the plunger (9) moves in upward and downward directions for opening and closing of the main port (7) respectively.
10. The method as claimed in claims 6 and 9, wherein the main port (7) is opened and closed by the plunger (9) when the solenoid coil (10) is in an energized state and in non- energized state respectively.
11. An automobile comprising an improved solenoid valve of claim 1.
PCT/IN2008/000150 2007-03-16 2008-03-17 An imporved solenoid valve for regulating speed of an automobile, a method and an automobile Ceased WO2008114277A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08751426A EP2134565A2 (en) 2007-03-16 2008-03-17 An imporved solenoid valve for regulating speed of an automobile, a method and an automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN542CH2007 2007-03-16
IN542/CHE/2007 2007-03-16

Publications (2)

Publication Number Publication Date
WO2008114277A2 true WO2008114277A2 (en) 2008-09-25
WO2008114277A8 WO2008114277A8 (en) 2008-11-13

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WO (1) WO2008114277A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177774A (en) 1975-06-25 1979-12-11 Control Logic (Proprietary) Limited Control valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177774A (en) 1975-06-25 1979-12-11 Control Logic (Proprietary) Limited Control valves

Also Published As

Publication number Publication date
EP2134565A2 (en) 2009-12-23
WO2008114277A8 (en) 2008-11-13

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