EP0077996B1 - Procédé et dispositif de réglage de la vitesse de ralenti pour moteur à combustion - Google Patents
Procédé et dispositif de réglage de la vitesse de ralenti pour moteur à combustion Download PDFInfo
- Publication number
- EP0077996B1 EP0077996B1 EP82109643A EP82109643A EP0077996B1 EP 0077996 B1 EP0077996 B1 EP 0077996B1 EP 82109643 A EP82109643 A EP 82109643A EP 82109643 A EP82109643 A EP 82109643A EP 0077996 B1 EP0077996 B1 EP 0077996B1
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- EP
- European Patent Office
- Prior art keywords
- speed
- control element
- idling
- control
- overrun
- 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.)
- Expired
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
- F02D31/002—Electric control of rotation speed controlling air supply
- F02D31/003—Electric control of rotation speed controlling air supply for idle speed control
- F02D31/004—Electric control of rotation speed controlling air supply for idle speed control by controlling a throttle stop
Definitions
- the invention relates to a method and a device for regulating the speed of an internal combustion engine according to the preamble of the main claim and the first device claim.
- the article "New mixture formation system for petrol engines” in “Automobil Technische Zeitschrift 83 (1981) 5 " on page 219 ff discloses an electronically controllable carburettor system with regulation of the idling speed as well as electronic control during start, warm-up and acceleration.
- the idle speed - control system includes an adjustable in position throttle stop plate. When idling, the measured engine speed is continuously compared with the desired setpoint and a PI control algorithm uses the deviation to calculate the required throttle valve position change.
- a speed-sensitive electrical circuit acts on an electromagnetically actuated actuator, with which the amount of intake air can be changed in the idle position of the throttle valve.
- the electromagnetically actuated actuator acts in a cross-sectional control manner on a bypass channel parallel to the throttle valve.
- the arrangement for idle speed control known from DE-A-2 546 076 acts on a throttle valve arranged in the intake pipe of the internal combustion engine.
- a setpoint generator and an actual value generator are provided for the speed, the output voltages of which are fed to the two inputs of a differential amplifier.
- An output signal characterizing the control deviation acts on an actuator designed as a solenoid.
- the actuator is continuously connected to the throttle valve and adjusts it according to the control deviation.
- This circuit is also not able to introduce boundary conditions into the control and take external factors into account and thus ensure under all circumstances that the idle speed of an internal combustion engine remains safely within a predetermined range, even if transition conditions that take effect quickly have to be absorbed.
- this known circuit is not suitable to be used at the same time to influence the overrun operation, namely for fuel-saving overrun cutoff.
- the object of the invention is to optimally further develop the system known from the article in "Automobil Technische Zeitschrift".
- the method according to the invention and the device according to the invention, each with the characterizing features of the main claim or the first device claim, have the advantage, in contrast, that any external boundary conditions are introduced in addition, interfering influences and precise positioning of the idling speed, in particular also while avoiding long-term influences such as temperature and air pressure can be realized.
- transitions between the various operating states which constantly occur during operation of an internal combustion engine, can be smoothly absorbed and smoothed by the invention, for example from thrust to part load, from part load to idling, idling to thrust, etc.
- the invention works with regard to the setting of the idle speed in fully regulated operation; If the idling speed or the speed in the area close to idling is exceeded, the throttle valve can be switched over to control and partial tracking of the actuator.
- the regulation and control according to the invention reacts quickly and reliably to all possible disturbance variables.
- FIG. 1a and 1b show the control behavior of the main controller for idling or the area close to idling with P component and I component, in each case above the speed deviation, based on an idling speed setpoint
- FIG. 2 in the form of a diagram the transition behavior from thrust to idling, the path of the actuator being plotted over time
- FIG. 3 in the form of a diagram the transition behavior from thrust to partial load, the actuator path being plotted against time
- FIG. 4 the transition behavior from part load in Idling in the form of a diagram
- FIG. 5 the intervention of the control with respect to the actuator control in accordance with a pulse length modulation in the form of a diagram.
- FIGS. 7 and 8 in Form of block diagram representations Realization options for the electronic control circuit shows in an essentially digital representation.
- the central electronic control circuit 1 works on the output side via an output stage 1a on an actuator 2, which in the exemplary embodiment shown is preferably designed as an electropneumatic actuator and has an evacuating valve 2a and an aerating valve 2b.
- the control of the valves 2a, 2b takes place electrically via assigned relays 3a, 3b, specifically, as will be explained further below, according to a process similar to a pulse length modulation via output stage transistors 4a, 4b connected to the respective relays.
- the actuator 2 actuates with its valves 2a, 2b a push) 10, which rests on the main throttle, not shown, so that when the evacuating valve is actuated, the plunger 10 is retracted and thus the main throttle is closed more tightly, while when the ventilating valve is actuated, the tappet 10 adjusted more and accordingly the main throttle is opened more.
- the main throttle or a mechanical part connected to it for example a throttle valve lever, can be lifted off the tappet 10 at any time by actuating the accelerator pedal and is therefore also only under e.g. Spring pressure on.
- the overall control concept distinguishes four functional areas, which are dependent on speed thresholds and a characteristic signal which is derived from the system of the main throttle on the tappet 10.
- the central electronic regulating and control circuit controls the electropneumatic actuator 2 differently in accordance with the functional range detected in each case.
- the four functional areas can be characterized as follows:
- the engine speed is less than a certain starting speed (n ⁇ n Anl ).
- the speed lies between the starting speed and a thrust speed (n Anl ⁇ n ⁇ n thrust ) and the main throttle is applied to the tappet 10.
- the internal combustion engine is in the partial load range
- the speed is between the starting speed and the thrust speed (n Anl ⁇ n ⁇ n thrust ) and the main throttle is not on the tappet 10 (or on a mechanical stop).
- the effective actual speed of the internal combustion engine is greater than or equal to the overrun speed (n ⁇ n Schun ).
- the time between two ignition pulses 5, which are supplied to the terminal 6 of the circuit of FIG. 1, is most conveniently measured and the time interval (period duration) thus obtained is used for speed detection.
- the ignition pulses instead of the ignition pulses, other signals can also be used, which can occur synchronously with the engine speed, for example dead center sensor e. the like
- the central control circuit 1 can have a clock generator or oscillator, which is not initially shown separately; If the central control circuit is a so-called microcomputer circuit at least in some areas - preferably a 4-bit microcomputer that has neither a timer nor an interrupt option, then the circuit sequence of the controller (namely the controller program in this case) organized in a loop.
- This program loop has a constant running time T loop and forms the time base of the control program.
- a flip-flop 7 is always set by the flip-flop, which works as a buffer and can be, for example, a monoflop or a bistable element, ie a flip-flop.
- the timing between two ignition pulses as a measure of the period of the speed is measured by the oscillator or clock generator of the central control circuit 1, which works with a constant oscillation period, so that with the oscillations of the clock generator with a significantly higher frequency, based on the highest, due to the occurrence of Ignition pulses characterized speed frequency, a counter is acted upon, the current counter reading then in each case in a memory cher loaded and the counter is reset when an ignition pulse occurs.
- the occurrence of an ignition pulse can be determined in each case by the fact that the flip-flop 7 has been switched to its other state.
- the flip-flop 7 as a buffer is then, if it is a bistable element, either reset by the next clock pulse - which means that the current counter reading is taken over into the memory at the same time - or the reset takes place automatically if the flip-flop is a monoflop.
- the memory content is then a measure of the period and thus of the speed of the internal combustion engine, the resolution being determined by the frequency of the clock generator or oscillator in the control circuit. If the program loop frequency of a microcomputer used in this case is used for the derivation of the clock frequency, then the buffer 7 is queried as a monoflop or as a flip-flop once per loop pass and then either reset by the program (with two stable states of the buffer) or automatically reset (with one Monoflop).
- the program can wait for a reset to wait for the monoflop to reset after an ignition pulse occurs, thereby achieving yitter-free speed detection. Then T Mono t ! O p > Ts ch i e it e . In this case, too, the counter is incremented each time the loop is run, so that when the next ignition pulse occurs, a current counter reading corresponding to the period of the speed is located in it and can be loaded into the memory. In any case, there is always a current speed signal in the memory, which can be evaluated accordingly by the control circuit 1 and is available.
- the detection of the position of the main throttle (system) on the tappet 10 or on a mechanical stop corresponding to the throttle valve closed or throttle valve opened in order to distinguish between the functional areas mentioned further above takes place with the aid of a throttle valve switch designated by 8 in FIG. 7.
- the throttle valve switch 8 can be designed such that a signal log 1 results, for example, when the main throttle is present on the actuator or on the tappet 10 and a signal log 0 when the main throttle is not present.
- a counter via the clock generator or oscillator of the control circuit 1 or by means of the loop frequency of Microprocessor is increased and decreased at signal log 0.
- This counter can be counted up or down between a maximum and a minimum value.
- a buffer is set or reset.
- the buffer can be set to the log 1 signal when the maximum value is reached and to the log 0 signal when the minimum value is reached. It can be seen that this buffer is most appropriately a bistable element, the output signals of which indicate whether the main choke is present or not.
- the control circuit is given a target idling speed, which can also be a counter content, for example, or in the case of an analog configuration, for example, a constant voltage which is compared with the content of the memory already mentioned above, or with an analog voltage which is derived from the memory content in a known manner
- the central control circuit 1 is designed such that it has at least one This PI control behavior applies to the idling functional area and to the resulting special control structure of the plunger 10 via output stage 1a and actuator 2.
- the PI control behavior works with a proportional component en and integrator running speeds, but with a preferably analog design of the control circuit 1, however, a certain asymmetry in the PI control behavior is provided, so that, for example, if the speed falls below the setpoint speed in idle, the reaction can be faster and / or stronger, possibly with an additional D component, to save the engine from going out, so to speak.
- control circuit 1 is constructed with digital components or implemented in the form of a microcomputer, then e.g. To simplify the program structure, constant proportions and integrator running speeds are not used, but the speed range is divided into several ranges, also and preferably different ranges, around the target idling speed according to the diagrams in FIGS. 1a and 1b, these ranges then each having constant P- Parts and constant I running speeds included. This then results in stepped platform curves for given control deviations for both the P and the I component.
- the P component and the integrator level are added and used for actuator control.
- the PI sum of the P and I components can be stored in an output memory and in an intermediate memory.
- a possible variant here is to load the buffer store with a value in the output store averaged over a certain time. As long as the functional range idling prevails, the circuit operates fully in the regulated mode according to the overall concept, whereby, as will be discussed further below, the plunger position 10 caused by the actuator 2 is also detected and compared with the setpoint value, which is the PI sum at the output of the control amplifier.
- the integrator In the presence of the partial load functional area, that is to say when the main throttle is actuated and no longer applied, the integrator is first stopped by this transition of the main throttle identification signal from log 1 to log 0; A suitable blocking signal eliminates the further evaluation of the P component.
- the PI sum in the buffer which corresponds to the last value in the idle range, is still used for actuator control, so that it remains in the last position before the main throttle is actuated (initially).
- control circuit 1 is configured so that the actuator is moved back for rotational speeds n ⁇ n thrust. Therefore, when the main throttle is not actuated, thrust cut-off is possible via the accelerator pedal if the mixture generator (for example, carburetor) is designed accordingly.
- the mixture generator for example, carburetor
- a temperature detection is carried out in addition to setting the initial values for the integrator level and the PI sum in the output memory and buffer.
- the PI sum is output in the buffer for actuator control for a specific time t vs (t vs can be, for example, 2 seconds) (compare the course of the diagram indicating the actuator's travel over time) Fig. 2).
- the actuator therefore occupies the last position in the idle range before changing to another range.
- There is the possibility and can preferably also be used to add a constant for a short time t a (eg t a 0.2 s) in addition to the output value for actuating the actuator from the buffer. This results in a brief increase in filling after thrust cut-off to avoid speed drops.
- the control is released again after tvs (and t a ) have expired.
- the function can proceed according to the diagram in FIG. 3 as with the transition from overrun to idle; After the transition period ty s , however, the control is not released, but the actuator remains in the last position of the idle range in accordance with the PI sum stored in the buffer.
- the transition period t vs shown in FIG. 3 is therefore only given for better understanding and is of no importance for this transition function.
- the central control circuit 1 controls the actuator in such a way that the actuator remains in the position in the part load range for a predetermined period of time tt (for example also 2 s) has shown the last value before leaving the idle range, i.e. again corresponds to the PI sum in the buffer. The regulation is then released.
- tt for example also 2 s
- the central control circuit also receives a position signal or position signal relating to the tappet position and thus, what applies to the control area, also to the position of the throttle valve.
- This position signal is an actual value signal and is compared by a suitable comparator or comparator of the control circuit with the target value, which results as a PI sum in the buffer.
- FIG. 5 shows in the form of a diagram how the control circuit controls the actuator 2 with a method approximating the pulse length modulation in order to achieve the desired one Position or location of the plunger 10 to achieve.
- the position detection of the plunger position is carried out either by simply returning a tapped potentiometer potential, which in turn is adjusted by the plunger position.
- the position detection can be carried out with the aid of a digital-to-analog converter, which is designated 9 in FIG. 7.
- the digital-to-analog converter queries the potentiometer voltage that can also be used here (according to the actuator position) via thresholds.
- the potentiometer, which is adjusted by the actuator or the plunger, is designated by 15 in FIG.
- FIG. 6 shows in diagram form more precisely what is meant.
- two thresholds namely an upper threshold A and a lower threshold B, are used to query whether the potentiometer voltage is above, within or below the thresholds; the two valves 2a, 2b of the actuator are then activated accordingly.
- the two thresholds as shown in Fig. 6, are overlaid with a sawtooth or triangular shape, i.e. they are sawtooth-shaped, so that a pulsed output differential value is obtained directly by comparison with the actual value on the potentiometer, which leads to pulsed control signals with different pulse durations for different actual value positions and, if necessary, corresponding deviation from the setpoint.
- 6a shows the position setpoint corresponding to the PI sum at C approximately in the buffer.
- the two threshold curves originating from the digital-to-analog converter are expediently arranged symmetrically upwards and downwards around this setpoint value C, so that when the actual position value is identical to the setpoint value C, there is no overlap between the actual value initially assumed to be horizontal and the Sawtooth pulses of thresholds A and B result.
- FIGS. 6b to 6d each show two possible curve profiles over time one above the other, the upper diagram always being used for the control of the evacuating valve and the lower curve for the control of the ventilating valve.
- FIG. 6b shows that the venting valve is not activated at all, i.e. always remains closed, while the control pulses are supplied to the evacuating valve according to the upper curve, in the presence of which the evacuating valve is transferred to its open position. It can be seen that by actuating the evacuating valve, the plunger position is withdrawn (retracted), so that the actual value curve begins to decrease in accordance with curve D in FIG. 6a (this is not shown in the curves shown). However, it can also be seen that a gradual shifting of the actual value curve profile D downwards shortens the duration of the control pulses, that the overlap periods with the sawtooth threshold A become shorter.
- FIG. 6d is assigned to the gradually increasing actual value curve of the dash-dotted curve F in FIG. 6a; it can be seen that the actual value F is gradually approaching the desired setpoint C and therefore in this case also Control impulses for the ventilating valve become less and less.
- the digital-to-analog converter 9 already mentioned above can also be used, a counter being increased with each clock pulse from the oscillator or clock generator, which is part of the control circuit 1, or with each program loop run in a microcomputer; this counter reading is given to the digital-to-analog converter; Because of the double use, it goes without saying that this takes place at different times for the position detection of the ram and for the temperature detection, for example in a multiplex method.
- a comparator 11 is provided (see FIG. 7), the input of which is supplied with an analog temperature signal from a suitable resistance network.
- This resistance network contains at least one NTC or PTC resistor for temperature detection, which is in heat-conducting contact with suitable parts of the internal combustion engine, such as the cooling water.
- the comparator 11 Since the comparator 11 is constantly supplied with a counter-proportional voltage, i.e. an increasing voltage from the digital-to-analog converter, the comparator 11 will then emit a signal when the counter-proportional voltage of the central control circuit 1 exceeds the temperature-dependent voltage. At this moment, the last counter reading corresponds to the temperature value at the comparator, so that it is a measure of the temperature range in which the internal combustion engine works. This counter reading is stored, which is easily possible as a transfer signal into a memory due to the comparator output signal, and is used for temperature evaluation. At the same time, the counter can be reset so that temperature changes can also be recorded.
- a counter-proportional voltage i.e. an increasing voltage from the digital-to-analog converter
- the following variant can also be implemented for the functional sequence partial load or for the transition function from partial load to idling.
- the actuator moves the main throttle up to the system by setting the integrator, i.e. in this variant the integrator is not stopped when the main throttle is actuated in the partial load range. If there is then a transition from partial load to idling, the actuator is reset in a controlled manner until the idling speed is reached.
- This has the advantage that speed drops during the transition from partial load to idling are avoided if the load torque of the engine has previously been increased in the partial load range, for example by switching on consumers, air conditioning and the like; this solution is also advantageous for motor vehicles with automatic transmissions.
- a further possible variant of the transition behavior from thrust to idle results from the fact that the integrator is set via a D component and the control is then released.
- the D component is obtained by differentiating the speed signal, a large D component resulting when the speed drop rate is also high.
- an adjustment of the actuator via the integrator proportional to the speed of the sinking speed is achieved.
- the advantage lies in the fact that one can achieve a stronger setting of the actuator and thus a better interception of the speed via the higher speed sink rate at high load torques. This is also advantageous for motor vehicles with an automatic transmission, since the load torque of the torque converter strongly depends on the previous history.
- the actuator in the partial load range in a speed-controlled manner, the speed setpoint also being influenced and the actual speed being able to be tracked.
- the tracked speed setpoint is then reduced to the actual setpoint after a predetermined time function, with the result that the speed is reduced in a controlled manner via this time function.
- FIG. 8 shows a possible embodiment from a large number of conceivable forms for realizing the central control circuit 1; in this embodiment, a predominantly digital mode of operation is required; wherein the circuit components already shown in Fig. 7 have the same reference numerals.
- the clock generator is designated 20; for speed detection, a counter 21 is acted upon by the counting pulses of the clock generator 20 and is then reset via the flip-flop 7 when an ignition pulse arrives; At the same time, a takeover pulse is emitted from the counter 7 via the connecting line 22 to a transfer gate 23 connected downstream of the counter 21, so that there is in each case a counter reading in the transfer gate or buffer store 23 which corresponds to the period of the actual speed.
- the counter reading in the intermediate counter 23 is to be compared with a target counter reading in a register (not shown separately in FIG. 8), in which the target value of the speed is entered.
- This comparison can be made by counting the intermediate memory 23 and the register or a takeover counter connected downstream of this in each case with a high clock rate, so that there is a counter difference which is then processed separately with respect to the P component and the I component by supplying corresponding ones digital circuit components that function as shown in FIGS. 1a and 1b.
- the block carrying out the difference formation with a target speed is generally designated by 24; the two downstream blocks 25 and 26 are each responsible for processing the speed difference.
- the binary words resulting at the outputs of the P block 25 and the I block are fed in parallel to a buffer memory 27 and the output memory 28, the counter reading of which, in addition of the P component and the I component, then corresponds to the PI sum of the target position of the actuator corresponds.
- a first counter 29 and a second counter can be operated with a high clock rate 30 can be controlled for the formation of the upper threshold or the lower threshold.
- the temperature signal can be obtained with the aid of a further counter 34; the output signal of the comparator 11 is then fed back and triggers a take-over memory, which is not shown in FIG. 8 and takes over the current counter reading of the temperature counter 24.
- a temperature signal is also obtained, which can be used, for example, to effect corresponding setpoint changes.
- this temperature signal which is a binary word in the exemplary embodiment in FIG. 8, can be used to change the speed setpoint set in a register in accordance with a desired function, so that a cold speed setpoint can be used when the machine is cold.
- FIG. 8 Another counter 35 is shown in FIG. 8 for obtaining the system signal of the main choke; this counter is supplied with up and down count signals at its inputs 35a, 35b in accordance with the position of the throttle valve switch, ie either log 0 or log 1.
- a downstream buffer 36 is set or reset.
- This buffer can be a bistable element and its output then shows the respective position of the throttle valve, whether it is on the actuator or not.
- the output signal of the buffer initially reaches the control amplifier with a P component and I component via a connecting line 37.
- the integrator is stopped by this output signal and the proportional control amplifier is blocked for the speed difference.
- the main purpose of this is the output signal of the buffer 36 for the signal “choke system”.
- further comparison memories are provided, which are not shown in FIG. 8 and serve to fulfill the functions mentioned above with regard to the functional areas and the transition functions.
- a further comparison memory in which the limit speed for the overrun operation is set, is used to drive the actuator back here again, bypassing the control operation, namely, for example, by direct activation of the evacuating valve 2a. It is easy to see that all work areas and transition functions can be realized in this way. The transition function from thrust to idle is only considered as an example. If a system signal of the main throttle valve results from a corresponding switchover of the intermediate store 36, its output signal causes the inputs of the counters 29 and 30 or their set registers 31 and 32 to be switched over to the intermediate store 27 in order to take over the PI sum stored there for the actuator control .
- a counter can be started which determines the delay time t vs until its maximum value is reached and then effects the switch back to the output memory 28, simultaneously with the release of the control.
- a counter can be started which determines the delay time t vs until its maximum value is reached and then effects the switch back to the output memory 28, simultaneously with the release of the control.
- different, increased initial values can be entered in the setting registers 31 and 32 for a transition period. Since this is a measure familiar to a person skilled in the art, there is no need to go into this further.
- the path of the actuator is designated by S in FIGS. 2, 3 and 4, while the control is released in each case at point G of the curve in FIGS. 2 and 4. 2, the last value in idle is also denoted by H; at time t o there is a transition from thrust to idling. Likewise, in the diagram of FIG. 4, at time t 1, the transition from part-load range to idling takes place via the further time delay tvr still provided there.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Velocity Or Acceleration (AREA)
Claims (26)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813142409 DE3142409A1 (de) | 1981-10-26 | 1981-10-26 | Verfahren und vorrichtung zur regelung der drehzahl einer brennkraftmaschine im leerlauf |
DE3142409 | 1981-10-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0077996A2 EP0077996A2 (fr) | 1983-05-04 |
EP0077996A3 EP0077996A3 (en) | 1984-03-28 |
EP0077996B1 true EP0077996B1 (fr) | 1988-06-01 |
Family
ID=6144844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82109643A Expired EP0077996B1 (fr) | 1981-10-26 | 1982-10-19 | Procédé et dispositif de réglage de la vitesse de ralenti pour moteur à combustion |
Country Status (4)
Country | Link |
---|---|
US (1) | US4474154A (fr) |
EP (1) | EP0077996B1 (fr) |
JP (1) | JPS5877135A (fr) |
DE (2) | DE3142409A1 (fr) |
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DE3149097A1 (de) * | 1981-12-11 | 1983-06-16 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum regeln der leerlaufdrehzahl bei einer brennkraftmaschine |
DE3232725A1 (de) * | 1982-09-03 | 1984-03-08 | Robert Bosch Gmbh, 7000 Stuttgart | Regeleinrichtung fuer ein stellwerk bei einer brennkraftmaschine mit selbstzuendung |
JPS59203850A (ja) * | 1983-05-04 | 1984-11-19 | Diesel Kiki Co Ltd | エンジンの回転速度制御装置 |
JPS59226243A (ja) * | 1983-06-06 | 1984-12-19 | Mazda Motor Corp | エンジンのアイドル回転制御装置 |
DE3329800A1 (de) * | 1983-08-18 | 1985-02-28 | Robert Bosch Gmbh, 7000 Stuttgart | Drehzahlregelsystem fuer eine brennkraftmaschine mit selbstzuendung |
DE3337260A1 (de) * | 1983-10-13 | 1985-04-25 | Atlas Fahrzeugtechnik GmbH, 5980 Werdohl | Leerlaufregelung fuer einen ottomotor |
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DE3421897A1 (de) * | 1984-06-13 | 1985-12-19 | Pierburg Gmbh & Co Kg, 4040 Neuss | Verfahren zum bestimmen des anlagezustandes der hauptdrosselkinematik an einem drosselklappenansteller |
US4572127A (en) * | 1985-04-01 | 1986-02-25 | Ford Motor Company | Interactive spark and throttle idle speed control |
US4753202A (en) * | 1985-07-05 | 1988-06-28 | Honda Giken Kogyo K.K. | Idling speed control system for internal combustion engines |
JPS62178749A (ja) * | 1986-01-29 | 1987-08-05 | Mitsubishi Electric Corp | 内燃機関のアイドル回転数制御装置 |
JPH0718371B2 (ja) * | 1986-11-24 | 1995-03-06 | 三菱電機株式会社 | 内燃機関の回転数制御装置 |
JP2553536B2 (ja) * | 1987-01-20 | 1996-11-13 | マツダ株式会社 | エンジンのアイドル回転数制御装置 |
DE3704941A1 (de) * | 1987-02-17 | 1988-08-25 | Pierburg Gmbh | Verfahren und vorrichtung zur regelung der leerlaufdrehzahl bei brennkraftmaschinen |
JPS63146141U (fr) * | 1987-03-13 | 1988-09-27 | ||
US4875448A (en) * | 1988-09-23 | 1989-10-24 | Briggs & Stratton Corporation | Cyclic responding electronic speed governor |
US5279271A (en) * | 1990-06-29 | 1994-01-18 | Robert Bosch Gmbh | Control system for an internal combustion engine and/or motor vehicle |
AT398644B (de) * | 1992-07-02 | 1995-01-25 | Vaillant Gmbh | Digitaler regelkreis |
JP3279032B2 (ja) * | 1993-12-16 | 2002-04-30 | スズキ株式会社 | 船外機のエンジン回転数制御装置 |
DE10018193A1 (de) * | 2000-04-12 | 2001-10-25 | Bayerische Motoren Werke Ag | Regelverfahren |
FR2887797B1 (fr) * | 2005-07-01 | 2008-08-15 | Societe De Prospection Et D'inventions Techniques | Procede de determination de donnees d'exploitation d'un appareil portatif a actionnement manuel et l'appareil pour la misen en oeuvre du procede |
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---|---|---|---|---|
US3575256A (en) * | 1969-02-12 | 1971-04-20 | Ford Motor Co | Speed control system for an automtoive vehicle |
DE2049669A1 (de) * | 1970-10-09 | 1972-04-13 | Robert Bosch Gmbh, 7000 Stuttgart | Vorrichtung zur Steuerung der Leerlaufdrehzahl von Brennkraftmaschinen mit einem zur Drosselklappe parallel wirkenden Umgehungskanal |
US3964457A (en) * | 1974-06-14 | 1976-06-22 | The Bendix Corporation | Closed loop fast idle control system |
DE2546076C2 (de) * | 1975-10-15 | 1982-07-15 | Volkswagenwerk Ag, 3180 Wolfsburg | Regelanordnung für Verbrennungsmotoren mit einer über einen Einschalter einschaltbaren Drehzahl-Regeleinrichtung |
US4098242A (en) * | 1976-06-17 | 1978-07-04 | Barber-Colman Company | Automatic control system with gain switching |
US4081733A (en) * | 1976-06-29 | 1978-03-28 | Barber-Colman Company | Automatic control system with integrator offset |
DE2715408C2 (de) * | 1977-04-06 | 1986-07-17 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zum Betrieb und Regeleinrichtung für eine Brennkraftmaschine zum Konstanthalten wählbarer Drehzahlen |
JPS5857623B2 (ja) * | 1978-02-25 | 1983-12-21 | 日産自動車株式会社 | 内燃機関のアイドル回転数制御装置 |
JPS55160137A (en) * | 1979-05-29 | 1980-12-12 | Nissan Motor Co Ltd | Suction air controller |
JPS55160132A (en) * | 1979-05-31 | 1980-12-12 | Nissan Motor Co Ltd | Revolution controller of internal combustion engine |
JPS6038544B2 (ja) * | 1979-10-17 | 1985-09-02 | 株式会社デンソー | エンジンの回転速度制御方法 |
JPS5925111B2 (ja) * | 1979-11-06 | 1984-06-14 | マツダ株式会社 | エンジンのアイドル回転数制御装置 |
JPS56126635A (en) * | 1980-03-07 | 1981-10-03 | Fuji Heavy Ind Ltd | Automatic speed governor for idling |
JPS56126634A (en) * | 1980-03-07 | 1981-10-03 | Fuji Heavy Ind Ltd | Automatic speed governor for idling |
FR2478202A1 (fr) * | 1980-03-17 | 1981-09-18 | Sibe | Dispositif de carburation pour moteur a combustion interne |
JPS56135730A (en) * | 1980-03-27 | 1981-10-23 | Nissan Motor Co Ltd | Controlling device for rotational number of internal combustion engine |
US4401075A (en) * | 1980-10-27 | 1983-08-30 | The Bendix Corporation | Automatic speed control for heavy vehicles |
-
1981
- 1981-10-26 DE DE19813142409 patent/DE3142409A1/de active Granted
-
1982
- 1982-10-14 JP JP57179159A patent/JPS5877135A/ja active Pending
- 1982-10-19 EP EP82109643A patent/EP0077996B1/fr not_active Expired
- 1982-10-19 DE DE8282109643T patent/DE3278575D1/de not_active Expired
- 1982-10-21 US US06/435,642 patent/US4474154A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0077996A3 (en) | 1984-03-28 |
DE3278575D1 (en) | 1988-07-07 |
US4474154A (en) | 1984-10-02 |
DE3142409C2 (fr) | 1992-07-30 |
DE3142409A1 (de) | 1983-05-05 |
JPS5877135A (ja) | 1983-05-10 |
EP0077996A2 (fr) | 1983-05-04 |
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