NO872977L - CONNECTING AND DISABLING DELAY OF A FAN ENGINE BY ENGINE-DEVICED VEHICLE HEATING. - Google Patents
CONNECTING AND DISABLING DELAY OF A FAN ENGINE BY ENGINE-DEVICED VEHICLE HEATING.Info
- Publication number
- NO872977L NO872977L NO872977A NO872977A NO872977L NO 872977 L NO872977 L NO 872977L NO 872977 A NO872977 A NO 872977A NO 872977 A NO872977 A NO 872977A NO 872977 L NO872977 L NO 872977L
- Authority
- NO
- Norway
- Prior art keywords
- resistor
- delay
- engine
- switch
- charging
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims description 9
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
- F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/06—Postpurge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Combustion (AREA)
Description
Foreliggende oppfinnelse angår en inn- og utkoblingsforsinkelse av en viftemotor ved motoruavhengig kjøretøyopp-varming av den art som angitt i innledningen til kravet. The present invention relates to a switch-on and switch-off delay of a fan motor for motor-independent vehicle heating of the kind stated in the introduction to the claim.
Ved motoruavhenglge kjøretøyoppvarminger er det vanlig å koble inn etter oppstartingen kun glødepluggen for å tilveiebringe en sikker tenning av brennstoff-luft-blandingen i startfasen. Dersom glødetråden har nådd arbeidstemperaturen blir vlftemotoren såvel som brennstoffpumpen tilkoblet tidsforsinket, og brennstoff-luft-blandingen tenner ved den varme glødetråden. With engine-dependent vehicle heating, it is common to connect only the glow plug after start-up to ensure a safe ignition of the fuel-air mixture in the starting phase. If the filament has reached the working temperature, the blower motor as well as the fuel pump are connected with a time delay, and the fuel-air mixture ignites at the hot filament.
Ved utkobling av oppvarmingen er det nødvendig at etter avbruddet av brennstofftilførselen avkjøles brennkammeret og varmeveksleren over en viss tid. Utover dette kan koblings-anordningen bli anvendt over alt hvor bestemte prosesser skal bli styrt inn- og utkoblingsforsinket. When switching off the heating, it is necessary for the combustion chamber and the heat exchanger to cool down over a certain period of time after the interruption of the fuel supply. In addition to this, the switching device can be used everywhere where certain processes are to be controlled with a switch-on and switch-off delay.
Det er vanlig ved motoruavhenglge kjøretøyoppvarminger å realisere en inn- og utkoblingsforsinkelse med diskrete komponenter i en tidskrets, som arbeider etter prinsippet med kondensatoroppladning. Det blir imidlertid også anvendt tidskretser med integrerte bryterkretser. It is common for engine-dependent vehicle heating to realize a switch-on and switch-off delay with discrete components in a timing circuit, which work according to the principle of capacitor charging. However, timing circuits with integrated switch circuits are also used.
En slik løsning er beskrevet i DE-AS 2809 994 og DE-OS 2710 940. I begge tilfellene blir imidlertid tilveiebragt kun en forsinkelsestid pr. krets. Det er også kjent en løsning hvor det kan bli realisert to forsinkelsestider i en krets. Fra DD-WP 218 865 blir for dette formål anvendt en programmerbar tidskrets med faste integrerte deltrinn og flanketrigget tilbakestilling, idet en delerutgang forsinker motorreléet og en høyere delerutgang kobler glødepluggreléet via en transistor i forbindelse med tidsområdeinngangen og lasteutgangen. En ulempe er det her at det alltid foreligger en inn- og utkoblingsforsinkelse som står i et bestemt delerforhold på 1:6. Det er imidlertid ofte nødvendig å øke forglødevarig-heten uten at totalglødevarigheten henholdsvis forsinkelses tiden økes. En ulempe herved er også at systemet er et digitalt system, hvor feilsøking på komponentene i produksjonsprosessen henholdsvis ved reparasjon kun kan bli utført med eksakte og dyre måleinstrumenter. Det blir også stilt store krav til servicepersonalet. Such a solution is described in DE-AS 2809 994 and DE-OS 2710 940. In both cases, however, only one delay time is provided per circuit. A solution is also known where two delay times can be realized in a circuit. From DD-WP 218 865, a programmable timing circuit with fixed integrated partial steps and flank-triggered reset is used for this purpose, with a partial output delaying the motor relay and a higher partial output connecting the glow plug relay via a transistor in connection with the time range input and the load output. A disadvantage here is that there is always a switch-on and switch-off delay which is in a specific ratio of 1:6. However, it is often necessary to increase the pre-glow duration without increasing the total glow duration or the delay time. A disadvantage here is also that the system is a digital system, where troubleshooting of the components in the production process or during repair can only be carried out with exact and expensive measuring instruments. Great demands are also placed on the service staff.
Formålet med oppfinnelsen er å tilveiebringe en krets med en inn- samt utkoblingsforsinkelse som bygger på prinsippet med analog kretsteknikk og har frie valgbare forhold av tidene med enkle midler. The purpose of the invention is to provide a circuit with an integrated switch-off delay which is based on the principle of analogue circuit technology and has freely selectable conditions of the times by simple means.
Oppgaven til oppfinnelsen er å tilveiebringe en tidskrets med en takter, som arbeider etter kondensatoroppladningsprinsippet, og som er således utformet at tiden for innkoblings-og utkoblingsforsinkelsen og dets forhold i forhold til hverandre kan velges fritt. The task of the invention is to provide a timing circuit with a timer, which works according to the capacitor charging principle, and which is designed in such a way that the time for the switch-on and switch-off delay and its relationship to each other can be freely selected.
Ovenfornevnte blir tilveiebragt ved hjelp av en krets av den art som angitt i innledningen og hvis karakteristiske trekk fremgår av kravet. Ifølge oppfinnelsen blir den tilveiebringbare utkoblingsforsinkelsen vesentlig øket, idet parallelt til styrespenningsinngangen til takteren blir koblet en ytterligere motstand over en transistor. Derved kan den interne bryterterskelen varieres i området fra 2/3 Ug til 1/3 UtB og dermed tilveiebringes en vesentlig lengre utkoblingsforsinkelse . The above is provided by means of a circuit of the type stated in the introduction and whose characteristic features appear in the claim. According to the invention, the switch-off delay that can be provided is substantially increased, as a further resistor is connected across a transistor in parallel to the control voltage input of the timer. Thereby, the internal switch threshold can be varied in the range from 2/3 Ug to 1/3 UtB and thus a significantly longer switch-off delay is provided.
For å tilveiebringe innkoblingsforsinkelse med en ladekondensator blir en ladekondensator ladet opp over en diode og en lademotstand ved hjelp av tilførsel av spenning på i og for seg kjent måte. Når kondensatorspenningen 2/3 Ug, så blir den påfølgende takteren trigget. Utgangen til takteren veksler fra et H-signal og et L-signal slik at den etterkoblede npn-transistoren sperres. Dette medfører at i det følgende blir npn-transistoren ledende og releet kobles. Releet kobler så vlftemotoren inn. In order to provide switch-on delay with a charging capacitor, a charging capacitor is charged up via a diode and a charging resistor by means of supplying voltage in a manner known per se. When the capacitor voltage reaches 2/3 Ug, the subsequent timer is triggered. The output of the timer alternates between an H signal and an L signal so that the connected npn transistor is blocked. This means that in the following the npn transistor becomes conductive and the relay is connected. The relay then switches the fan motor on.
For å bevirke utkoblingsforsinkelse blir driftspenningen koblet til dioden. Utladningsforløpet via lade- og utladningsmotstanden kan finne sted da den forankoblede dioden er koblet i sperreretningen for dette forløpet. Ladningen til kondensatoren flyter via lade- og utladningsmotstanden til jorden. Da imidlertid takteren ved 2/3 Ug igjen tilbakekobles ved sin styreinngang er den tiden som er til rådighet svært liten. Den tilveiebringbare utkoblingsforsinkelsen kan imidlertid bli vesentlig forlenget, idet det parallelt til den interne spenningsdeleren til takteren kobles en ytterligere motstand over en transistor. Koblingsterskelen til takteren kan avhengig av størrelsen på motstanden bli satt ned til 1/3 Ug. Forholdet til forsinkelsestiden er dermed fritt velgbar. Er ladekondensatoren utladet så mye at koblingsterskelen er nådd, så blir takteren internt trigget, og ved utgangen fremkommer igjen et H-signal. Dermed er utkoblingsforsinkelsen avsluttet, reléet faller av, og vlftemotoren blir utkoblet. To effect the switch-off delay, the operating voltage is connected to the diode. The discharge sequence via the charge and discharge resistor can take place as the pre-connected diode is connected in the blocking direction for this sequence. The charge to the capacitor flows via the charging and discharging resistance to earth. However, since the timer at 2/3 Ug is again switched back at its control input, the time available is very short. However, the switch-off delay that can be provided can be significantly extended, as an additional resistor is connected across a transistor in parallel to the internal voltage divider of the timer. Depending on the size of the resistance, the switching threshold of the timer can be set down to 1/3 Ug. The relationship to the delay time is thus freely selectable. If the charging capacitor is discharged so much that the switching threshold is reached, the timer is internally triggered, and an H signal appears again at the output. The switch-off delay is thus ended, the relay drops out, and the fan motor is switched off.
Prinsippet med kondensatoroppladning tillater å kontrollere med enkle målemidler denne opp- utladningsprosessen ved produksjonsprosessen og også ved reparasjonstilfeller. The principle of capacitor charging allows this charge-discharge process to be checked with simple measuring devices during the production process and also in cases of repair.
I det påfølgende skal oppfinnelsen beskrives nærmere med henvisning til tegningen, hvor: Fig. 1 viser en løsning hvor det er mulig ved motoruavhengig kjøretøyoppvarming å koble vlftemotoren forsinket inn og koble ut tldsforslnket i nødvendig grad. Dette tiltaket tjener til sikker tenning av brennstoff-luft-blandingen, avkjøling av brennkammeret samt varmeveksleren etter avbrudd av brennstofftilførselen. In what follows, the invention will be described in more detail with reference to the drawing, where: Fig. 1 shows a solution where it is possible for engine-independent vehicle heating to connect the fan motor with a delay and to disconnect the time delay to the necessary extent. This measure serves for safe ignition of the fuel-air mixture, cooling of the combustion chamber and the heat exchanger after interruption of the fuel supply.
Ved tilkoblingen av driftspenningen Ug^og Ug£utgjør spenningen over ladekondensatoren null volt. Terskelspenningsinngangen 6 til takteren IS1 ligger dermed på null volt. Derved blir takteren IS1 internt trigget slik at ved sin utgang 3 ligger et H-signal. Via motstanden R3 blir transistoren Tl styrt til ledende tilstand, og transistoren T2 sperres dermed. Reléet KRI kobler ikke. Parallelt i forhold til reléet KRI befinner seg en friløpsdiode D2. Via dioden Dl og lademotstanden R2 blir kondensatoren Cl ladet inntil terskel spenningen ved terskelspenningsinngangen til takteren IS1 er steget til 2/3 UB. Takteren IS1 blir nå internt trigget slik at et L-signal fremkommer ved sin utgang 3. Dette L-signalet har via motstanden R3 til følge at transistoren Tl sperres, og transistoren T2 kobler reléet KRI. Motstanden R5 er kollektormotstanden for transistoren Tl og samtidig basismotstanden for transistoren T2. Reléet KRI kobler med sin ikke viste arbeidskontakt en ikke vist viftemotor i en oppvarmingsanordning. When the operating voltages Ug^ and Ug£ are connected, the voltage across the charging capacitor is zero volts. Threshold voltage input 6 to sensor IS1 is thus at zero volts. Thereby, the timer IS1 is internally triggered so that at its output 3 there is an H signal. Via the resistor R3, the transistor Tl is controlled to the conducting state, and the transistor T2 is thus blocked. The relay KRI does not connect. A freewheeling diode D2 is located in parallel with the relay KRI. Via the diode Dl and the charging resistor R2, the capacitor Cl is charged until the threshold voltage at the threshold voltage input of the timer IS1 has risen to 2/3 UB. The timer IS1 is now internally triggered so that an L-signal appears at its output 3. This L-signal has the effect via the resistor R3 that the transistor Tl is blocked, and the transistor T2 switches the relay KRI. The resistor R5 is the collector resistor for the transistor T1 and at the same time the base resistor for the transistor T2. With its not shown working contact, the relay KRI connects a not shown fan motor in a heating device.
Ved hjelp av et H-signal, som blir opptatt av en innkoblet, men ikke vist viftemotor, foregår via motstanden R6 og transistoren T3 en parallellkobling av motstanden R4 til styrespenningsinngangen 5 til takteren IS1. Derved blir koblingsterskelen til terskelspenningsinngangen redusert, avhengig av størrelsen på motstanden R4 inntil 1/3 Ug. With the help of an H signal, which is taken up by a connected but not shown fan motor, a parallel connection of the resistor R4 to the control voltage input 5 of the timer IS1 takes place via the resistor R6 and the transistor T3. Thereby, the switching threshold of the threshold voltage input is reduced, depending on the size of the resistor R4 up to 1/3 Ug.
Gjennom utladningsmotstanden RI flyter en delstrøm, men som imidlertid er uten betydning i denne driftsfasen. Kondensatoren C2 tjener til støyspenningsundertrykning. Parallelt i forhold til ladekondensatoren Cl befinner seg en kjent restspenningsslukkeinnretning LV i form av en relékontakt eller en transistor. A partial current flows through the discharge resistor RI, but which is however of no importance in this operating phase. The capacitor C2 serves for noise voltage suppression. Parallel to the charging capacitor Cl is a known residual voltage extinguishing device LV in the form of a relay contact or a transistor.
Med avbrudd av brennstofftilførselen blir nå driftsspenningen Ugikoblet ut. Dermed blir ladekondensatoren Cl utladet over lademotstanden R2 og utladningsmotstanden RI. Er dermed den reduserte terskelspenningsgrensen nådd, så blir taktene IS1 igjen internt trigget, utgangen 3 fører igjen H-potensial, og transistoren Tl blir ledende og sperrer transistoren T2. Reléet KRI kobles ut, og den ikke viste vlftemotoren blir utkoblet, og dermed avbrytes også parallellkoblingen av motstanden R4 over transistoren T3. Den resterende rest-spenningen på ladekondensatoren Cl blir slukket ved hjelp av den parallellkoblede slukkeinnretningen LV, slik at ved en fornyet oppstart av kjøretøyoppvarmingen står igjen den fulle forsinkelsestiden til rådighet. With the interruption of the fuel supply, the operating voltage is now switched off. Thus, the charging capacitor Cl is discharged across the charging resistor R2 and the discharging resistor RI. If the reduced threshold voltage limit is thus reached, then the clocks IS1 are again internally triggered, the output 3 again conducts H-potential, and the transistor Tl becomes conductive and blocks the transistor T2. The relay KRI is switched off, and the fan motor (not shown) is switched off, and thus the parallel connection of the resistor R4 across the transistor T3 is also interrupted. The remaining residual voltage on the charging capacitor Cl is extinguished by means of the parallel-connected extinguishing device LV, so that when the vehicle heating is restarted, the full delay time remains available.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD86293914A DD252156A1 (en) | 1986-08-28 | 1986-08-28 | ON AND OFF DELAY OF A BLOWER MOTOR IN ENGINE INDEPENDENT VEHICLE HEATERS |
Publications (2)
Publication Number | Publication Date |
---|---|
NO872977D0 NO872977D0 (en) | 1987-07-16 |
NO872977L true NO872977L (en) | 1988-02-29 |
Family
ID=5582042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO872977A NO872977L (en) | 1986-08-28 | 1987-07-16 | CONNECTING AND DISABLING DELAY OF A FAN ENGINE BY ENGINE-DEVICED VEHICLE HEATING. |
Country Status (9)
Country | Link |
---|---|
DD (1) | DD252156A1 (en) |
DE (1) | DE3723660A1 (en) |
DK (1) | DK344687A (en) |
FI (1) | FI873717A (en) |
HU (1) | HUT44460A (en) |
NO (1) | NO872977L (en) |
PL (1) | PL266836A1 (en) |
SE (1) | SE8703344L (en) |
YU (1) | YU148487A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19524422C2 (en) * | 1995-07-05 | 2000-02-17 | Eberspaecher J Gmbh & Co | Method for operating a fuel evaporation burner of a vehicle heater |
DE19605216C5 (en) * | 1996-02-13 | 2010-01-21 | Webasto Ag | Method for operating a vehicle auxiliary heater and annealing device |
CN102720685A (en) * | 2012-07-15 | 2012-10-10 | 黄勇 | Timing type exhaust fan |
CN102734201A (en) * | 2012-07-16 | 2012-10-17 | 刘昭利 | Speed-regulation time-delay ventilation fan |
CN106499649B (en) * | 2016-11-18 | 2019-05-28 | 广西大学 | A kind of energy-efficient ventilation fan |
-
1986
- 1986-08-28 DD DD86293914A patent/DD252156A1/en not_active IP Right Cessation
-
1987
- 1987-07-03 DK DK344687A patent/DK344687A/en not_active Application Discontinuation
- 1987-07-06 HU HU873046A patent/HUT44460A/en unknown
- 1987-07-15 PL PL1987266836A patent/PL266836A1/en unknown
- 1987-07-16 NO NO872977A patent/NO872977L/en unknown
- 1987-07-17 DE DE19873723660 patent/DE3723660A1/en not_active Withdrawn
- 1987-08-06 YU YU01484/87A patent/YU148487A/en unknown
- 1987-08-27 FI FI873717A patent/FI873717A/en not_active IP Right Cessation
- 1987-08-28 SE SE8703344A patent/SE8703344L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
YU148487A (en) | 1989-12-31 |
DK344687A (en) | 1988-02-29 |
DE3723660A1 (en) | 1988-03-10 |
FI873717A (en) | 1988-02-29 |
DD252156A1 (en) | 1987-12-09 |
NO872977D0 (en) | 1987-07-16 |
SE8703344L (en) | 1988-03-01 |
PL266836A1 (en) | 1988-07-07 |
DK344687D0 (en) | 1987-07-03 |
HUT44460A (en) | 1988-03-28 |
SE8703344D0 (en) | 1987-08-28 |
FI873717A0 (en) | 1987-08-27 |
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