CN104675550A - Control of operational events for an internal combustion engine - Google Patents
Control of operational events for an internal combustion engine Download PDFInfo
- Publication number
- CN104675550A CN104675550A CN201410662880.9A CN201410662880A CN104675550A CN 104675550 A CN104675550 A CN 104675550A CN 201410662880 A CN201410662880 A CN 201410662880A CN 104675550 A CN104675550 A CN 104675550A
- Authority
- CN
- China
- Prior art keywords
- value
- control unit
- controling parameters
- packet
- internal clocking
- 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.)
- Granted
Links
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Disclosed is a method and system for controlling the execution of an operational event of an active member during each or some combustion cycle(s) for each cylinder of a multi-cylinder internal combustion engine. The method comprises the steps of: capturing a first instantaneous value of the control parameter at a first discrete instance using a sensor unit, generating a first data package comprising data indicative of the captured first value and the value of an internal clock of the sensor unit, transmitting the first data package over a communication network to a control unit having an internal clock synchronized with the internal clock of the sensor unit, and controlling the execution of an operational event using the control unit. The control unit controls the execution of the operational event by extrapolating data at least partly obtained from the first data package. Consequently, a simple and robust method of controlling operational events is provided.
Description
Technical field
The present invention relates to in response to time dependent controling parameters during each rotation of multi-cylinder engine to control method and/or the system of the execution of the running activity of movable part during each or some burning cycles of each cylinder of multi-cylinder engine.
Background technique
To the accurate timing of the execution of the running activity of movable part during each burning cycle of each cylinder in multi-cylinder engine with control to be very crucial and to depend on the renewal of the instantaneous angular position of the crankshaft being directly linked to piston position with accurate information.The moment of moment that the running activity controlled in time such as comprises fuel and spray, the moment of igniting and the moment of the actuating of suction valve and outlet valve and the supply of lubricant oil and pressurized air countercylinder is treated at each burning cycle.
The controlling method of the type belonging to the present invention and system are well known in the art, such as from Japan Patent JP5143939B2, this Japan Patent belongs to the applicant and discloses a kind of control system, this control system gathers the value of controling parameters, collection value is transmitted via telecommunication network, and utilizes the compensation factor generated by the transmission time determined in a network to compensate this collection value.The transmission time is determined by finding the difference between the time of reception in the acquisition time and control unit of value.
But, determine that time of reception is in a control unit complicated, and it needs additional specialized hardware.
Additional specialized hardware further increases the risk of the fault in system.
Therefore the method and/or the system that are provided for more simply and the more robust of the running activity during each burning cycle in each cylinder of multi-cylinder engine that controls remain a problem.
Summary of the invention
According to first aspect, the present invention relates to in response to time dependent controling parameters during each rotation of multi-cylinder engine to control the method for the execution of the running activity of movable part during each burning cycle of each cylinder of multi-cylinder engine, comprise the following steps:
Be captured in the first momentary value of the controling parameters of the first discrete instants during each burning cycle by first sensor unit, wherein said first sensor unit has internal clocking;
Generate the first packet, the first packet comprises and represents the first collected momentary value of described controling parameters and the described internal clocking of the described first sensor unit data in the value of described first discrete instants, obtain time/parameter space in the first point;
By described first packet via communication network transmission to the first control unit, wherein said first control unit has the internal clocking with the internal clock synchronization of described first sensor unit;
The first estimated value of the time rate of change of described controling parameters is obtained in described first control unit;
Wherein, described method is further comprising the steps of:
Estimate in described first control unit:
Described controling parameters is in the value of the first selected discrete instants, wherein said first selected discrete instants selects according to the value of the internal clocking of time first control unit in process, instead of directly select according to the time of reception of described first packet in described first control unit; Or
The value of the internal clocking of the first control unit when the value of described controling parameters makes it;
Wherein by use the first estimated value of the time rate of change of described controling parameters obtained directly extrapolate time/parameter space in described first value estimating the described controling parameters value of discrete instants or internal clocking of the first control unit selected by described first, and wherein when the internal clocking estimating that the value of described controling parameters has met or exceeded described predeterminated target or the first control unit has has met or exceeded estimated value, start running activity.
Therefore, provide a kind of method, thus can when do not need deterministic communication network or for detect the time of reception in the first control unit device controlling combustion engine in running activity.
The processing unit of the method also enable use uncertainty as control unit because the time of reception in processing unit and the precision of change time lag on the method between the time of process do not affect.
This allows to use single processing unit to perform multiple task, and such as the first control unit can comprise the single processing unit of the running activity of all cylinders be configured in controlling combustion engine.
Communication network can the deterministic communication network of right and wrong, and namely wherein transmission time is in a network random communication network, such as, based on the network of Ethernet.
The use of uncertainty communication network allows use standarized component and reduce further installation cost because do not need in a network a little between private link, can the network switch be used.Method disclosed in Fig. 2 of relating in JP5143939B2 or other method (such as IEEE1588) can be used to come the clock of synchronous first sensor unit and the clock of the first control unit.
The extrapolation of any type can be used, such as linear or nonlinear model.
In certain embodiments, the first packet is that non-deterministic mode is received in the first control unit with time of reception thus.
First control unit can have the uncertainty processing time, the time lag of the processing unit namely between the time of reception of the first packet and the time-triggered protocol of the data of the first packet can right and wrong deterministic, namely the first processing unit can comprise the queue of the vicissitudinous length of tool.
First control unit can comprise single processing unit.Alternatively, the first control unit can comprise multiple processing unit, such as, can arrange the decentralized treatment unit that can be coupled communicatedly with central processing unit near each cylinder, wherein the internal clocking of decentralized treatment unit and the internal clock synchronization of central processing unit.
First estimated value of time rate of change obtains by first sensor unit, and is sent to the first control unit in the first packet.Alternatively/additionally, the first estimated value of time rate of change can be obtained by the first control unit, such as by process time/parameter space in two or more points obtain.
First packet can be generated by first sensor unit.
In a preferred embodiment, the momentary value of controling parameters comprises the instantaneous position of the engine crankshaft be connected with the piston component of each described cylinder.
Therefore, special advantage point in burning cycle the execution of running activity can be started with highi degree of accuracy.
Predeterminated target can be the precalculated position of engine crankshaft.Usually between the actual moment that moment and the active member of the first control unit startup running activity perform running activity, there is control gains.Therefore, predeterminated target can be selected to consider this control gains.Because control gains is at least partly usual and the speed onrelevant of motor, predeterminated target can be selected according to engine speed, such as under high engine speed, predeterminated target can be less a little (under high engine speed compared to predeterminated target at low engine speeds, compared to low engine speed, control gains causes further rotating of crankshaft).
In certain embodiments, the method is further comprising the steps of:
Gathered the second momentary value of controling parameters by second discrete instants of described first sensor unit during each burning cycle, described second discrete instants is after described first discrete instants;
Generate the second packet, the second packet comprises the second momentary value of the described controling parameters of gathered expression and the described internal clocking of the described first sensor unit data in the value of described second discrete instants, obtain time/parameter space in second point;
Via communication network by described second data packet transmission to described first control unit;
If wherein estimating internal clocking that the value of described controling parameters has reached described predeterminated target or described first control unit after having reached described estimated value for specific burning cycle process second packet, then control running activity when not using the data in the second packet, and
If estimating internal clocking that the value of described controling parameters has reached described predeterminated target or described first control unit before having reached described estimated value for described specific burning cycle process second packet, then use the data in the second packet to control running activity.
Therefore, even when described second data-bag lost or evening arriving described first control unit, described running activity can also be controlled.
This permission controls running activity with highi degree of accuracy and high reliability, and namely the first packet provides high reliability, and the second packet provides highi degree of accuracy.
In addition, even when the first packet or the second packet damaged time, also can control running activity.
Can data in use second packet, by processing the data in the second packet in the mode corresponding with the mode of the data in process first packet, namely by extrapolation time/parameter space in second point control running activity.Second point in first estimated value of pot life rate of change or the second estimated value time of extrapolating/parameter space of time rate of change.Following equation can be used to obtain the second estimated value of time rate of change:
Wherein pt
2be the second estimated value of time rate of change, Δ p is poor between the value of the controling parameters of the first discrete instants and the second discrete instants, and Δ t is the time between the first discrete instants and the second discrete instants.
In certain embodiments, gather described second momentary value of controling parameters in the mode thus be less than the time 99.9%, 99.5%, 99% or 95%, the first processing unit had the time and processes the second packet before the execution starting running activity.
This by gather come near the second momentary value of predeterminated target very much, namely the second momentary value can be predetermined and the second discrete instants can between burning cycle be change.
In certain embodiments, to gather described first momentary value of controling parameters thus in the mode of the time of at least 99.9%, 99.5% or 99%, the first processing unit had the time and processes the first packet before controling parameters makes it.
This has come by gathering first momentary value having a large distance with predeterminated target, that is, the first momentary value is predetermined and the first discrete instants can be change between burning cycle.
In certain embodiments, the method is further comprising the steps of:
After start described running activity in burning cycle, gathered the validation value of the particular moment of controling parameters during described burning cycle by described first sensor unit;
Generate first verification data bag, the value of described internal clocking in described particular moment of described validation value and described first sensor unit drawn together by described first verification data handbag, obtain time/parameter space in check post;
Via described communication network, described verification msg bag is transferred to described first control unit;
In described first control unit, by described first and/or second point and time/parameter space in check post between the checking estimated value of carrying out interpolation to estimate the discrete instants when the value of described controling parameters reaches described predeterminated target;
Determine described checking estimated value and for start running activity estimated value between difference, wherein use determined difference to generate the correction factor for controlling the described running activity in the subsequent combustion cycle.
Therefore, because error has repeatably character usually, the precision of the method can be improved along with the time.This allows this system to adapt to new source of error further, makes this system robust more.In using in the internal-combustion engine of method at ship, this is even more important, because motor may need one-time continuous to operate several days or a few weeks.
In certain embodiments, the method is further comprising the steps of:
Active member sensor unit by being positioned in described active member place during burning cycle measures discrete instants when described active member performs described running activity, and wherein said active member sensor unit has the internal clocking with the internal clock synchronization of described first control unit;
Generate the second verification msg bag comprising measured discrete instants;
Via communication network, described second verification msg bag is sent to described first control unit, wherein said first control unit generates correction factor for burning cycle subsequently by processing described second verification msg bag.
Therefore, can further improve the precision of the method.This allows at least part of self calibration the method further, can reduce installation cost thus.
In certain embodiments, described first control unit is by estimating, from control gains when being started running activity execution actual in by described active member described running activity by the first control unit, to generate described correction factor.
Correction factor can be used revise the predeterminated target for the controling parameters of burning cycle subsequently, if such as control gains increases, then reduce predeterminated target, and if control gains reduces, then increase predeterminated target.
In certain embodiments, predeterminated target is selected according to the speed of motor and the estimated value of control gains.
In certain embodiments, the second sensor unit of redundancy additionally gathers the value of described controling parameters and described value is transferred to control unit.
Second sensor unit of redundancy can communicate with the second control unit of redundancy via communication network, wherein the second sensor unit of redundancy and the second control unit of redundancy perform the action corresponding with first sensor unit and the first control unit, provide full redundancy thus.
Therefore, provide the method for more robust, because even when one of control unit and/or sensor unit are out of order, also can control running activity.
In certain embodiments, the quantity of the value of the controling parameters gathered for each burning cycle is selected according to the length of burning cycle.
When compared with in time being short with burning cycle, burning cycle is long, the quantity of the value of the controling parameters gathered for each burning cycle can be higher.
Therefore, even at high motor speeds, when not making the Processing capacity overload of the first control unit, running activity can be controlled.
According to second aspect, the present invention relates to the system of the execution of the running activity for controlling the movable part during each or some burning cycles of each cylinder of multi-cylinder engine in response to time dependent controling parameters during each rotation of multi-cylinder engine, described system comprises:
There is the first sensor unit of internal clocking, wherein said first sensor unit the first discrete instants be configured to during each burning cycle gathers the first momentary value of controling parameters, and generate the first packet, first packet comprises the first momentary value of gathered described controling parameters and the described internal clocking of the described first sensor unit value at described first discrete instants, obtain time/parameter space in the first point; And
There is the first control unit be configured to the internal clocking of the internal clock synchronization of described first sensor unit, wherein said first control unit is connected to described first sensor unit via communication network and is configured to obtain the first estimated value of the time rate of change of described discrete parameter, and wherein, described first sensor unit to be configured to described first packet via described communication network transmission to described first control unit;
Wherein, described first control unit is configured to estimate in response to receiving described first packet further:
In the value of the described controling parameters of the first selected discrete instants, wherein said first selected discrete instants selects according to the value of the internal clocking of time first control unit in process, instead of directly according to the time of reception of described first packet in described first control unit; Or
The value of the internal clocking of the first control unit when the value of described controling parameters makes it;
Wherein by use first estimated value obtained of the time rate of change of described controling parameters directly extrapolate time/parameter space in described first value estimating the value of the described controling parameters of discrete instants selected by described first or the internal clocking of the first control unit, and wherein the first control unit is configured to, when the first control unit estimates that the internal clocking that the value of described controling parameters has met or exceeded described predeterminated target or the first control unit has has met or exceeded estimated value, start running activity.
Therefore, provide the simpler system of one, this system can when do not need deterministic communication network or for detect the time of reception in the first control unit device controlling combustion engine in running activity.
In a preferred embodiment, the momentary value of controling parameters comprises the instantaneous position of the engine crankshaft be connected with the piston component of each described cylinder.
In certain embodiments, first sensor unit the second discrete instants be also configured to during each burning cycle gathers second momentary value (described second discrete instants is after described first discrete instants) of controling parameters, and generate the second packet, second packet comprises the second momentary value of gathered described controling parameters and the described internal clocking of the described first sensor unit value at described second discrete instants, obtain time/parameter space in second point, and via communication network by described second data packet transmission to described first control unit,
Wherein said first control unit is configured to:
If estimating internal clocking that the value of described controling parameters has reached described predeterminated target or described first control unit after having reached described estimated value for specific burning cycle process second packet, the execution of running activity is then controlled when not using the data in the second packet, and
If estimating internal clocking that the value of described controling parameters has reached described predeterminated target or described first control unit before having reached described estimated value for described specific burning cycle process second packet, then use the data in the second packet to control the execution of running activity.
In certain embodiments, described first sensor unit is also configured to, after start described running activity in burning cycle, gather the validation value of the particular moment of described controling parameters during described burning cycle; Generate the described internal clocking that comprises described validation value and the described first sensor unit first verification data bag in the value of described particular moment, obtain time/parameter space in check post; And via described communication network, described verification msg bag is transferred to described first control unit;
Wherein said first control unit is configured to, by described first and/or second point and time/parameter space in check post between carry out interpolation to estimate the checking estimated value of the discrete instants when the value of described controling parameters reaches described predeterminated target; And be configured to further to determine described checking estimated value and for start running activity estimated value between difference, wherein use determined difference to be created on the correction factor of the described running activity controlled in the subsequent combustion cycle.
In certain embodiments, described system also comprises the active member sensor unit having and be configured to the internal clocking of the internal clock synchronization of described first control unit, described active member sensor is connected to described first control unit via described communication network
Wherein said active member sensor is configured to measure discrete instants when described active member performs described running activity during burning cycle, generate the second verification msg bag comprising measured discrete instants, and described second verification msg bag is sent to described first control unit
Wherein said first control unit is also configured to generate correction factor for controlling the described running activity in burning cycle subsequently by processing described second verification msg bag.
In certain embodiments, described first control unit is configured to by estimating, from control gains when being started running activity execution actual in by described active member described running activity by the first control unit, to generate described correction factor.
Different aspect of the present invention can be implemented by different way, this different modes comprise as mentioned above and be described below for controlling the method for running activity and the system for controlling running activity, each mode realizes being associated with at least one aspect above-described the one or more benefit and advantage that describe, and each mode has and contacts one or more preferred embodiments that disclosed in that at least one aspect above-described describes and/or dependent claims, preferred embodiment is corresponding.In addition, will recognize, the embodiment contacting the description of one of aspect described herein can be applied to other side equally.
Accompanying drawing explanation
With reference to accompanying drawing, illustrate above-mentioned and/or other objects, features and advantages of the present invention further by the following illustrative of embodiments of the invention and unrestricted detailed description, wherein:
Fig. 1 illustrates according to embodiments of the invention, for controlling the method for the execution of the running activity of the movable part during each burning cycle of each cylinder of multi-cylinder engine.
Fig. 2 illustrates according to embodiments of the invention, and when the value of controling parameters makes it, how control unit uses the data from the first packet to estimate the value of the internal clocking of the first control unit.
Fig. 3 illustrates according to embodiments of the invention, how control unit can estimate the value of the controling parameters at the first selected discrete instants, wherein the first selected discrete instants is the value according to the internal clocking of the first control unit when processing, instead of directly selects the first selected discrete instants according to the time of reception of the first packet in the first control unit.
Figure 4 and 5 illustrate according to embodiments of the invention, and how control unit can utilize the data from two packets.
Fig. 6 illustrates according to embodiments of the invention, illustrates how the first control unit can use data from multiple packet to control the flow chart of the execution of the running activity of movable part.
Fig. 7 illustrates according to embodiments of the invention, can how to use data from verification msg bag to improve precision.
Fig. 8-10 illustrates the schematic diagram of the internal-combustion engine comprising control system according to an embodiment of the invention.
Embodiment
In the following description, with reference to accompanying drawing, accompanying drawing illustrates how can put into practice the present invention by the mode illustrated.
Fig. 1 illustrates according to embodiments of the invention, for controlling flow process Figure 100 of the method for the execution of the running activity of the movable part during each burning cycle of each cylinder of multi-cylinder engine.In first step 101, be captured in the first momentary value of the controling parameters of the first discrete instants by first sensor unit.Next, in second step 102, generate the first packet, the first packet comprises and represents first value of collection of controling parameters and the data of the value at the internal clocking of the first sensor unit of the first discrete instants, obtain time/parameter space in the first point.Then in step 103 via communication network by the first data packet transmission to the first control unit, wherein the first control unit has the internal clocking with the internal clock synchronization of first sensor unit.Then first control unit obtains the first estimated value of the time rate of change of controling parameters at step 104.
Next, in step 105, the first control unit is estimated:
In the value of the described controling parameters of the first selected discrete instants, wherein said first selected discrete instants selects according to the value of the internal clocking of time first control unit in process, instead of directly according to the time of reception of described first packet in described first control unit (as contact Fig. 3 explains); Or when the value of described controling parameters makes it the internal clocking of the first control unit value (as contact Fig. 2 explain).
Finally, in step 106, when the internal clocking estimating that the value of described controling parameters has reached described predeterminated target or the first control unit has has met or exceeded estimated value, start running activity.
As mentioned before, Fig. 2 illustrate the value when controling parameters make it 204 time, how the first control unit uses the data from the first packet to estimate the value of the internal clocking of the first control unit.Illustrate be time/parameter space 200, this space 200 comprises first axle 201 of expression time and represents second axle 202 of value of controling parameters.Point p1 represents the first point in the time parameter space.Therefore, 209 the first momentary value representing the controling parameters gathered at the first discrete instants, and 208 represent value at the internal clocking of the first sensor unit (and first control unit) of the first discrete instants.In order to estimate when the value of controling parameters make it 204 time the first control unit the value t1 of internal clocking, first first control unit uses the first estimated value of the rate of change of obtained controling parameters to extrapolate to a p1, generate line 203 thus, and then determine the intersection point between the line 203 and the line 204 representing predeterminated target of extrapolation.Because the internal clock synchronization of the internal clocking of the first control unit and first sensor unit, the first control unit can be waited for simply, until its internal clocking arrives t1 and then starts running activity.Therefore, the first packet accurate transmission time in a communication network does not affect the precision of the method.Sole requirement is must by the first control unit process first packet before the internal clocking of the first control unit reaches t1.This makes it possible to use uncertainty communication network, and need not determine the transmission time in a communication network.
As mentioned before, Fig. 3 illustrates how the first control unit estimates the value of the controling parameters at the first selected discrete instants, wherein the first selected discrete instants is the value according to the internal clocking of the first control unit when processing, instead of directly selects the first selected discrete instants according to the time of reception of the first packet in the first control unit.In the method, the first control unit constantly keeps the estimation of the currency to controling parameters, and upgrades estimated value upon reception of the data packet.Illustrate be time/parameter space 300, space 300 comprises first axle 301 of expression time and represents second axle 302 of value of controling parameters.Point p1 represents the first point in the time parameter space.Therefore, 309 the first momentary value representing the controling parameters gathered at the first discrete instants, and 308 represent value at the internal clocking of the first sensor unit (with the first control unit) of the first discrete instants.Line segment 306 illustrates the estimated value of the value to controling parameters made by the first control unit before the first packet is processed.At t_proc place, first control unit is extrapolated to p1 by the first estimated value of the rate of change using the controling parameters obtained, process the first packet, and upgrade the estimated value of the currency of controling parameters by the extrapolation line of assessment in t_proc.Time period 307 illustrates the estimated value of the value to controling parameters made by the first control unit after the first packet is processed.When the first control unit estimates that the value of controling parameters has made it 304, then start running activity.Time difference between the first discrete instants 308 and t_proc330 is the first packet transmission time in a communication network and the combination of the queue in the first control unit, both random.
Figure 4 and 5 illustrate can how to use the data from multiple packet to control the execution of running activity according to embodiments of the invention.
Fig. 4 illustrate the value when controling parameters make it 404 time, can how to use the data from two packets to estimate the value of the internal clocking of the first control unit.Illustrate be time/parameter space 400, space 400 comprises first axle 401 of expression time and represents second axle 402 of value of controling parameters.Point p1 represents the first point in the time parameter space of the data be derived from the first packet, 409 the first momentary value representing the controling parameters gathered at the first discrete instants, and 408 represent value at the internal clocking of the first sensor unit (with the first control unit) of the first discrete instants.In order to the value made when controling parameters make it 404 time the first control unit first estimated value of value t1 of internal clocking, first first control unit uses the first estimated value of the rate of change of obtained controling parameters to extrapolate to a p1, generate line 403 thus, and then determine the intersection point between the line 403 and the line 404 representing predeterminated target of extrapolation.In order to improve the precision of method, the additional data used from the second packet.Point p2 represents the second point in the time parameter space of the data be derived from the second packet, 411 the second momentary value representing the controling parameters gathered at the second discrete instants, and 412 represent value at the internal clocking of the first sensor unit (with the first control unit) of the second discrete instants.If the line 403 of extrapolation correctly represents controling parameters, then put p2 and will be positioned on 403.Then, due to various source of error, p2 will usually by slight shift.
In order to the value made when controling parameters make it 404 time the first control unit t2 second estimated value of value of internal clocking, first first control unit uses the second estimated value of the rate of change of obtained controling parameters to extrapolate to a p2, generate line 405 thus, and then determine the intersection point between the line 405 and the line 404 representing predeterminated target of extrapolation.
Because the internal clock synchronization of the internal clocking of the first control unit and first sensor unit, the first control unit can be waited for simply, until its internal clocking arrives t2 and then starts running activity.
Because the second packet comprises the information relevant with the controling parameters closer to predeterminated target 404, t2 estimates more accurately than t1.
It should be noted that the information that can use from more than the packet of two, such as, from the information of at least 3,4 or 5 packets.
Fig. 5 illustrates the value that can how to use the data from two packets to estimate to select at the first selected discrete instants and second controling parameters of discrete instants, wherein the first and second selected discrete instants select according to the value of the internal clocking of the first control unit when process two packets, instead of directly wrap in the time of reception in the first control unit according to two data.In the method, the first control unit constantly keeps the estimation of the currency to controling parameters, and upgrades this estimated value when having processed packet.Illustrate be time/parameter space 500, space 500 comprises first axle 501 of expression time and represents second axle 502 of value of controling parameters.Point p1 represents the first point in the time parameter space being derived from the first packet, 509 the first momentary value representing the controling parameters gathered at the first discrete instants, and 508 represent value at the internal clocking of the first sensor unit (with the first control unit) of the first discrete instants.Line segment 506 illustrates the estimated value of the value to controling parameters made by the first control unit before the first packet is processed.At t_proc place, first control unit is extrapolated to p1 by the first estimated value of the rate of change using the controling parameters obtained, process the first packet, and upgrade the estimated value of the currency of controling parameters by the extrapolation line of assessment in t_proc.In order to improve precision, by the data of the first control unit additional treatments from the second packet.Point p2 represents the second point in the time parameter space being derived from the second packet, 511 the second momentary value representing the controling parameters gathered at the second discrete instants, and 512 represent value at the internal clocking of the first sensor unit (with the first control unit) of the second discrete instants.At t_proc2, first control unit is extrapolated to p2 by the second estimated value of the rate of change using the controling parameters obtained, process the second packet, and upgrade the estimated value of the currency of controling parameters by the extrapolation line of assessment in t_proc2.Time period 507 illustrates the estimated value of the value to controling parameters made by the first control unit in the time period between t_proc and t_proc2, and line segment 505 illustrates the estimated value of the value to controling parameters made by the first control unit after the second packet is processed.When the first control unit estimates that the value of controling parameters has made it 504, then start running activity.
Fig. 6 illustrates according to embodiments of the invention, illustrates how the first control unit can use data from multiple packet to control the flow chart of the execution of the running activity of movable part.At first step 601, when the first control unit estimates that controling parameters makes it, the first control unit determines whether its internal clocking t has met or exceeded predetermined value T.If internal clocking t reaches predetermined value T, then start running activity in step 602.Alternatively, the first control unit determines whether to receive new packet in step 603.
If received new packet, then the first control unit has obtained the estimated value of the activity rate of change of the first controling parameters in step 604.As contacted, Fig. 2 and/or Fig. 4 explain, use the data (point in the time parameter space) in the estimated value of time reorganization rate and packet obtained, the first control unit determines the new estimation value of the value of its internal clocking when the value of controling parameters makes it in step 605.Then, the first control unit turns back to step 601 after time lag Δ proc (defining the time resolution of the first controlling method).If the first control unit is determined not receive new packet in step 603, then its (after time lag Δ proc) directly turns back to step 601.If therefore generate the first and second packets for each burning cycle, then as the value of controling parameters as described in having estimated at the first control unit reached as described in after predeterminated target (in step 601) for specific burning cycle process second packet, then when not using the information from the data in the second packet, control the execution of running activity, and as the value of controling parameters as described in estimating at the first control unit reached as described in pretreatment second packet of predeterminated target, then use the data in the second packet to control the execution of running activity.
Therefore, record the second packet as follows: it comprises very near the information of the controling parameters of predeterminated target, because do not require that it arrives the first control unit in time.Therefore, the first packet can provide high reliability and the second packet can provide highi degree of accuracy.
Should be noted that, can in software or in the combination of software and hardware complete implementation step, such as relevant with the startup of activity step 601,602 can be implemented within hardware, and step 603,604 and 605 can be implemented in software, Fig. 7 illustrates according to embodiments of the invention, can how to use data from verification msg bag to improve precision.Illustrate be time/parameter space 700, space 700 comprises first axle 701 of expression time and represents second axle 702 of value of controling parameters.Point p1 represents the first point in the time parameter space of the data be derived from the first packet, 709 the first momentary value representing the controling parameters gathered at the first discrete instants, and 708 represent value at the internal clocking of the first sensor unit (with the first control unit) of the first discrete instants.In order to the value made when controling parameters make it 704 time the first control unit first estimated value of value t1 of internal clocking, first first control unit uses the first estimated value of the rate of change of obtained controling parameters to extrapolate to a p1, generate the line 703 of extrapolation thus, and then determine the intersection point between the line 703 and the line 704 representing predeterminated target of extrapolation.Therefore, when its internal clocking reaches t1, the first control unit starts running activity.As explained above, in order to improve the precision in subsequent combustion cycle, in the first control unit, first verification data bag is received.First verification data bag is included in burning cycle the validation value having started the controling parameters 720 that the particular moment after described running activity gathers, with the described internal clocking 721 of the described first sensor unit value in described particular moment, obtain time/parameter space in check post vp.Then, the first control unit by described first p1 and time/parameter space in check post vp between carry out interpolation to estimate the checking estimated value ve of the discrete instants when the value of described controling parameters reaches described predeterminated target.Use this checking estimated value ve, determine described checking estimated value ve and for start running activity estimated value t1 between difference 715.Then this difference is used to generate the correction factor for controlling the described running activity in the subsequent combustion cycle by the first control unit.
Fig. 8 illustrates and comprises according to an embodiment of the invention for controlling the schematic diagram of the internal-combustion engine of the control system of the execution of the running activity of the movable part during each burning cycle of each cylinder of multi-cylinder engine.Internal-combustion engine comprises four cylinders 2, the related movable part 8 of each cylinder 2 tool.Control system comprises can the first sensor unit 3 of communicative couplings via communication network 10,11 and first control unit 4.Communication network comprises wired connection 10 and switch 11.In this embodiment, the first control unit comprises single central processing unit 4.
Fig. 9 illustrates and comprises according to an embodiment of the invention for controlling the schematic diagram of the internal-combustion engine of the control system of the execution of the running activity of the movable part during each burning cycle of each cylinder of multi-cylinder engine.Internal-combustion engine comprises four cylinders 2, the related movable part 8 of each cylinder 2 tool.Control system comprises can the first sensor unit 3 of communicative couplings via communication network 10,11 and first control unit 4,5.Communication network comprises wired connection 10 and switch 11.In this embodiment, the first control unit comprises single central processing unit 4 and is positioned in four decentralized treatment unit 5 at active member 8 place of each cylinder 2.
Figure 10 illustrates and comprises according to an embodiment of the invention for controlling the schematic diagram of the internal-combustion engine of the control system of the execution of the running activity of the movable part during each burning cycle of each cylinder of multi-cylinder engine.Control system shown in Figure 10 is similar to the control system shown in Fig. 9, and difference is to be provided with the second sensor unit 3` of redundancy and the second control unit 4` of redundancy.
Although describe in detail and show some embodiments, the present invention is not limited to them, also can implement with the alternate manner in the scope of the main body defined in following claim on the contrary.Particularly, deserved understanding, can utilize other embodiment, and can make amendment in structure and functionally without departing from the scope of the invention.
In the system claims enumerating some modules, in these modules some can by one and same hardware branch implement.The fact recording or describe in different embodiments some measure in mutually different dependent claims does not show to use the combination of these measures to obtain benefit.
Be used to specify the existence of feature, entirety, step or parts of stating it is emphasized that the term used in the description " comprises ", but do not get rid of the existence or additional of one or more further feature, entirety, step, parts or its group.
Claims (12)
1., for controlling a method for the execution of the running activity of movable part (8) during each or some burning cycles of each cylinder (2) of multi-cylinder engine in response to time dependent controling parameters during each rotation of multi-cylinder engine, comprise the following steps:
(101) be captured in the first momentary value of the controling parameters (209,309) of the first discrete instants (208,308) during each burning cycle by first sensor unit (3), wherein said first sensor unit (3) has internal clocking;
(102) the first packet is generated, described first packet comprises and represents that the first collected momentary value of described controling parameters (209,309) and the described internal clocking of described first sensor unit (3) are in the data of the value of described first discrete instants (208,308), obtain time/parameter space in the first point (p1);
Described first packet is transferred to the first control unit (4,5) via communication network (10,11), and wherein said first control unit (4,5) has the internal clocking with the internal clock synchronization of described first sensor unit (3);
The first estimated value of the time rate of change of described controling parameters is obtained in described first control unit (4,5);
Wherein, described method is further comprising the steps of:
Estimate in described first control unit (4,5):
Described controling parameters is in the value of the first selected discrete instants (t_proc), wherein said first selected discrete instants (t_proc) selects according to the value of the internal clocking of the first control unit (4,5) when processing, instead of directly select according to the time of reception of described first packet in described first control unit (4,5); Or
The value (t1) of the internal clocking of the first control unit (4,5) when the value of described controling parameters makes it (204,304);
Wherein, by use the first estimated value of the time rate of change of described controling parameters obtained directly extrapolate time/parameter space in described first point (p1) estimate the value (t1) of described controling parameters at the described first selected value of discrete instants (4,5) or the internal clocking of the first control unit (4,5), and wherein when the internal clocking estimating that the value of described controling parameters has met or exceeded described predeterminated target (204,304) or the first control unit has has met or exceeded estimated value (t1), start running activity.
2. method according to claim 1, wherein, the momentary value of controling parameters comprises the instantaneous position of the engine crankshaft be connected with the piston component of each described cylinder (2).
3. method according to claim 1 and 2, wherein, the method is further comprising the steps of:
Gathered second momentary value (411,511) of second discrete instants of described controling parameters during each burning cycle (412,512) by described first sensor unit (3), described second discrete instants (412,512) is after described first discrete instants (208,308);
Generate the second packet, described second packet comprises second momentary value (411,511) of the described controling parameters that expression gathers and the described internal clocking of described first sensor unit (3) data in the value of described second discrete instants (412,512), obtain time/parameter space in second point (p2);
Via communication network (10,11) by described second data packet transmission to described first control unit (4,5);
Wherein, if for specific burning cycle process second packet after estimating the value (t1) that internal clocking that the value of described controling parameters has reached described predeterminated target or described first control unit has reached estimated, then control running activity when not using the data in the second packet, and
If for described specific burning cycle process second packet before estimating the value (t1) that internal clocking that the value of described controling parameters has reached described predeterminated target (404,504) or described first control unit has reached estimated, then use the data in the second packet to control running activity.
4. the method according to any one in claim 1-3, wherein, described method is further comprising the steps of:
After starting described running activity in described burning cycle, gathered the validation value (720) of the described controling parameters particular moment during described burning cycle (721) by described first sensor unit (3);
Generate first verification data bag, the value of described internal clocking in described particular moment (721) of described validation value (720) and described first sensor unit drawn together by described first verification data handbag, obtain time/parameter space in check post (vp);
Via described communication network (10,11), described verification msg bag is transferred to described first control unit (4,5);
In described first control unit, by described first point (p1) and/or second point (p2) and time/parameter space in check post (vp) between carry out interpolation to estimate the checking estimated value (ve) of the discrete instants when the value of described controling parameters reaches described predeterminated target (704);
Determine described checking estimated value (ve) and for start running activity estimated value between difference (715), wherein determined difference is used for generating correction factor for controlling described running activity in the subsequent combustion cycle.
5. the method according to any one in claim 1-4, wherein, the method is further comprising the steps of:
Moving element sensor unit by being positioned in described moving element (8) place during burning cycle measures discrete instants when described moving element (8) performs described running activity, and wherein said moving element sensor unit has the internal clocking with the internal clock synchronization of described first control unit (4,5);
Generate the second verification msg bag comprising measured discrete instants;
Via communication network (10,11), described second verification msg bag is sent to described first control unit (4,5), wherein said first control unit (4,5) generates correction factor for burning cycle subsequently by processing described second verification msg bag.
6. the method according to any one in claim 1-5, wherein, selects the quantity of the value of the controling parameters gathered for each burning cycle according to the length of burning cycle.
7. the method according to any one in claim 1-6, wherein, second sensor unit (3`) of redundancy additionally gathers the value of described controling parameters and described value is transferred to control unit (4`).
8., for controlling a system for the execution of the running activity of movable part during each or some burning cycles of each cylinder (2) of multi-cylinder engine in response to time dependent controling parameters during each rotation of multi-cylinder engine, described system comprises:
There is the first sensor unit (3) of internal clocking, wherein said first sensor unit (3) is configured to gather described controling parameters (209, 309) the first discrete instants (208 during each burning cycle, 308) the first momentary value, and generate the first packet, described first packet comprises gathered described controling parameters (209, 309) the described internal clocking of the first momentary value and described first sensor unit is at described first discrete instants (208, 308) value, obtain time/parameter space in the first point (p1), and
There is the first control unit (4,5) be configured to the internal clocking of the internal clock synchronization of described first sensor unit (3), wherein said first control unit (4,5) is connected to described first sensor unit (3) via communication network (10,11) and is configured to obtain the first estimated value of the time rate of change of described discrete parameter, and wherein, described first sensor unit (3) is configured to described first packet to be transferred to described first control unit (4,5) via described communication network (10,11);
Wherein, described first control unit (4,5) is configured to estimate in response to receiving described first packet further:
Described controling parameters is in the value of the first selected discrete instants (t_proc), wherein said first selected discrete instants selects according to the value of the internal clocking of the first control unit (4,5) when processing, instead of directly select according to the time of reception of described first packet in described first control unit (4,5); Or
The value (t1) of the internal clocking of the first control unit (4,5) when the value of described controling parameters makes it (204,304);
Wherein by use the first estimated value of the time rate of change of described controling parameters obtained directly extrapolate time/parameter space in described first point (p1) estimate that described controling parameters is at the value of the described first selected discrete instants (t_proc) or the first control unit (4, 5) value of internal clocking, and wherein the first control unit (4, 5) be configured to when the first control unit (4, 5) estimate that the value of described controling parameters has met or exceeded described predeterminated target or the first control unit (4, 5) when internal clocking has met or exceeded estimated value (t1), start running activity.
9. system according to claim 8, wherein, the momentary value of controling parameters comprises the instantaneous position of the engine crankshaft be connected with the piston component of each described cylinder (2).
10. system according to claim 8 or claim 9, wherein, first sensor unit (3) is also configured to gather described controling parameters during each burning cycle at described first discrete instants (411, 511) the second discrete instants (412 after, 512) the second momentary value (411, 511), generate the second momentary value (411 comprising gathered described controling parameters, 511) and the described internal clocking of described first sensor unit (3) at described second discrete instants (412, 512) the second packet of value, obtain time/parameter space in second point (p2), and via communication network (10, 11) by described second data packet transmission to described first control unit (4, 5),
Wherein, described first control unit (4,5) is configured to
If for specific burning cycle process second packet after estimating the value (t1) that internal clocking that the value of described controling parameters has reached described predeterminated target (404,504) or described first control unit (4,5) has reached estimated, the execution of running activity is then controlled when not using the data in the second packet, and
If estimating internal clocking that the value of described controling parameters has reached described predeterminated target (404,504) or described first control unit (4,5) before having reached described estimated value (t1) for described specific burning cycle process second packet, then use the data in the second packet to control the execution of running activity.
11. systems described in any one according to Claim 8 in-10, wherein, described first sensor unit (3) is also configured to after starting described running activity in described burning cycle, gather the validation value (720) of the described controling parameters particular moment during described burning cycle (721), generation comprises the first verification data bag of described internal clocking in the value of described particular moment (721) of described validation value (720) and described first sensor unit (3), obtain time/parameter space in check post (vp), and via described communication network (10, 11) described first verification data bag is transferred to described first control unit (4, 5),
Wherein said first control unit (4,5) be configured to by described first point (p1) and/or second point (p2) and time/parameter space in check post (vp) between carry out interpolation to estimate the checking estimated value (ve) of the discrete instants when the value of described controling parameters reaches described predeterminated target (704); And determine described checking estimated value (ve) and for start running activity estimated value between difference (715), wherein determined difference (715) is used for generating correction factor for controlling described running activity in the subsequent combustion cycle.
12. methods described in any one according to Claim 8 in-11, wherein, described system also comprises the moving element sensor having and be configured to the internal clocking of the internal clock synchronization of described first control unit (4,5), described moving element sensor is connected to described first control unit (4,5) via described communication network (10,11)
Wherein said moving element sensor is configured to measure discrete instants when described moving element (8) performs described running activity during burning cycle, generate the second verification msg bag comprising measured discrete instants, and described second verification msg bag is sent to described first control unit (4,5)
Wherein said first control unit (4,5) is also configured to generate correction factor for controlling described running activity subsequently by processing described second verification msg bag.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK201370728A DK177921B1 (en) | 2013-11-28 | 2013-11-28 | Control of operational events for an internal combustion engine |
| DKPA201370728 | 2013-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104675550A true CN104675550A (en) | 2015-06-03 |
| CN104675550B CN104675550B (en) | 2017-09-05 |
Family
ID=52130028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662880.9A Active CN104675550B (en) | 2013-11-28 | 2014-11-19 | The control of the operating activity of internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP6125483B2 (en) |
| KR (1) | KR101544933B1 (en) |
| CN (1) | CN104675550B (en) |
| DK (1) | DK177921B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK177921B1 (en) * | 2013-11-28 | 2015-01-05 | Man Diesel & Turbo Deutschland | Control of operational events for an internal combustion engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2602031B2 (en) * | 1987-10-14 | 1997-04-23 | マツダ株式会社 | Electronic control unit for internal combustion engine |
| JP2006285977A (en) * | 2005-03-09 | 2006-10-19 | Denso Corp | Information processing system |
| US20080027619A1 (en) * | 2004-06-16 | 2008-01-31 | Siemens Aktiengesellschaft | Crankshaft-Synchronous Detection of Analog Signals |
| KR100882926B1 (en) * | 2007-03-12 | 2009-02-10 | 맨 디젤 필리얼 아프 맨 디젤 에스이, 티스크랜드 | Control method and system for a multi-cylinder internal combustion engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK177130B1 (en) * | 2011-04-14 | 2012-01-09 | Man Diesel & Turbo Deutschland | Method of controlling an internal combustion engine |
| DK177921B1 (en) * | 2013-11-28 | 2015-01-05 | Man Diesel & Turbo Deutschland | Control of operational events for an internal combustion engine |
-
2013
- 2013-11-28 DK DK201370728A patent/DK177921B1/en active
-
2014
- 2014-11-19 CN CN201410662880.9A patent/CN104675550B/en active Active
- 2014-11-25 KR KR1020140165361A patent/KR101544933B1/en active IP Right Grant
- 2014-11-27 JP JP2014240412A patent/JP6125483B2/en active Active
-
2016
- 2016-03-09 JP JP2016045710A patent/JP6199427B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2602031B2 (en) * | 1987-10-14 | 1997-04-23 | マツダ株式会社 | Electronic control unit for internal combustion engine |
| US20080027619A1 (en) * | 2004-06-16 | 2008-01-31 | Siemens Aktiengesellschaft | Crankshaft-Synchronous Detection of Analog Signals |
| JP2006285977A (en) * | 2005-03-09 | 2006-10-19 | Denso Corp | Information processing system |
| KR100882926B1 (en) * | 2007-03-12 | 2009-02-10 | 맨 디젤 필리얼 아프 맨 디젤 에스이, 티스크랜드 | Control method and system for a multi-cylinder internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104675550B (en) | 2017-09-05 |
| JP6125483B2 (en) | 2017-05-10 |
| JP2016145578A (en) | 2016-08-12 |
| KR101544933B1 (en) | 2015-08-17 |
| KR20150062134A (en) | 2015-06-05 |
| JP6199427B2 (en) | 2017-09-20 |
| JP2015121216A (en) | 2015-07-02 |
| DK177921B1 (en) | 2015-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10941687B2 (en) | Catalyst temperature estimation device, catalyst temperature estimation system, data analysis device, and control device of internal combustion engine | |
| CN108071507A (en) | A kind of method for being used to adjust the oil-control valve actuating response time using cylinder valve diagnosis | |
| US9297321B2 (en) | Flexible crank angle position sensing | |
| US10491530B2 (en) | Communication system and communication device | |
| EP1734239B1 (en) | Control apparatus for internal combustion engine | |
| US20090093939A1 (en) | Valve Control Synchronization and Error Detection in an Electronic Valve Actuation Engine System | |
| CN111680049A (en) | Block chain-based processing method and processing device for Internet of things data | |
| JP2013083646A (en) | Real time test method of control apparatus for internal combustion engine by simulator | |
| AU2013353748A1 (en) | Improving engine performance by adjusting angular position sensor signal timing | |
| CN106351743A (en) | Method and device for detecting reverse connection of double-ECU (double electronic control units) engine timing signal sensors | |
| US9790870B2 (en) | Method for processing a signal supplied by a bi-directional sensor and corresponding device | |
| JP2007238044A (en) | Vehicle control system and electronic control unit | |
| US7027913B2 (en) | Vehicle control system | |
| CN104675550A (en) | Control of operational events for an internal combustion engine | |
| JP5143939B2 (en) | Control method and control system for internal combustion engine | |
| JP4415027B2 (en) | Control method and system for a multi-cylinder internal combustion engine | |
| JP2004507637A (en) | Method of operating an internal combustion engine and an apparatus corresponding thereto | |
| CN111207929B (en) | Method and system for intercepting real-time collected engine cylinder pressure signal | |
| CA2992940C (en) | Method for data acquisition | |
| CN109209666A (en) | For strengthening the flame-out method of preventing engine and vehicle | |
| US10681720B2 (en) | Wireless communication device, wireless information collection system, and wireless communication method | |
| US20120035838A1 (en) | Method and device for acquiring and transmitting operating data of an internal combustion engine | |
| JPH0531252Y2 (en) | ||
| CN117242252A (en) | Control device for internal combustion engine | |
| CN115208505A (en) | Time synchronization method and time synchronization device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |