CN101992772A - Method of operating oil supply using estimated future oil pressure - Google Patents
Method of operating oil supply using estimated future oil pressure Download PDFInfo
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- CN101992772A CN101992772A CN2010102607491A CN201010260749A CN101992772A CN 101992772 A CN101992772 A CN 101992772A CN 2010102607491 A CN2010102607491 A CN 2010102607491A CN 201010260749 A CN201010260749 A CN 201010260749A CN 101992772 A CN101992772 A CN 101992772A
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- oil pressure
- oil
- combustion engine
- storage tank
- self
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 claims abstract description 39
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 238000011161 development Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000011217 control strategy Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 71
- 238000007599 discharging Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/0097—Predicting future conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M7/00—Lubrication means specially adapted for machine or engine running-in
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/1075—Change speed gearings fluid pressure, e.g. oil pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H2061/0034—Accumulators for fluid pressure supply; Control thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2312/00—Driving activities
- F16H2312/14—Going to, or coming from standby operation, e.g. for engine start-stop operation at traffic lights
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Control Of Transmission Device (AREA)
Abstract
A method for operating an oil supply for a combustion engine and/or a transmission system of a motor vehicle with start/stop-automatic comprises detected a deceleration of the vehicle and monitoring at least one status parameter which correlates with a manner of the deceleration. The method estimates a future oil pressure of the oil supply based on the status parameter and an actual oil supply control strategy and if the estimated future oil pressure is below a predetermine threshold of the oil pressure, an oil pump is activated which fills an accumulator tank. Also claimed is controller for carrying out the method and an oil supply system which is operated by the controller using the method. The accumulator tank is filled in advance of a possible automatic stop so that there is a sufficient high oil pressure when the combustion engine is started again and a period of time for the automatic stop is not lengthened. This leads to a reduction of the fuel consumption and the CO2 emissions.
Description
Technical field
The present invention relates to method of operation and a kind of corresponding controller of the gas feeder of a kind of combustion engine that is used for self-propelled vehicle and/or driving system, the oil pressure of fuel-feed system can be by this controller control.
Background technology
By DE10041789A1 known when the low oil pressure with the automatic halt instruction of automatic start/stop device override combustion engine.Oil pump can at first be filled petrol storage tank before combustion engine stops owing to current automatic halt instruction like this.When engine starting, can provide enough oil pressure owing to described override.
The shortcoming of this method is the consumption of fuel and the CO of combustion engine
2Discharge very high.
Summary of the invention
Therefore, problem to be solved by this invention provides a kind of method of operation and a kind of controller of gas feeder, makes the consumption of fuel and the CO of combustion engine
2Discharging is reduced and the low excessively problem of oil pressure when not having engine starting.
The solution of this problem is to realize by method with claim 1 feature and the controller with claim 7 feature.Dependent claims has provided preferred form of implementation.
According to combustion engine and/or the deceleration that comprises the steps: the explorer motor-car of the method for operation of the gas feeder of driving system for the self-propelled vehicle that is used for particularly having automatic start/stop device of the present invention, monitor at least one state parameter relevant with the deceleration behavior, estimate the gas feeder oil pressure in future according to this state parameter and actual control of fuel supply strategy, if estimated following oil pressure is lower than default oil pressure threshold value, just activate an oil pump that is used to fill petrol storage tank.
Make not only and can trigger when stopping automatically by automatic start/stop device according to method of the present invention, even also can before satisfying the self-braking all conditions of beginning, fill petrol storage tank at combustion engine.Following oil pressure can be in particular following time point and calculate, that is, the combustion engine of planning based on the actual value of development and/or state parameter since automatic start/stop device reach stop automatically the time.The development of for this reason, can extrapolated value calculating state parameter.Because the correlativity of state parameter and deceleration behavior, can estimate roughly at least motor vehicle speed development and thereby calculate deceleration/decel, vice versa.For this reason, even qualitative parameter is just enough, and wherein, the particular measurement value of different parameters is preferred.Because petrol storage tank is just filled before stopping automatically possible, thereby has guaranteed that combustion engine has sufficiently high oil pressure when starting once more, is used to wherein realize that the self-braking time period does not prolong.Stop to beginning self-braking time period even can shorten from self-propelled vehicle.This makes the consumption of fuel and the CO of combustion engine
2Discharging is reduced and the low excessively problem of oil pressure when not having engine starting.
This result is by outside actual control of fuel supply strategy, does not adopt actual control of fuel supply strategy and additionally the short time is filled petrol storage tank.Do not have obvious problem, the decision that changes actual control of fuel supply strategy can low-down numerical value occur based on monitor value (as deceleration/decel and/or speed of a motor vehicle size, i.e. motor vehicle speed).In addition, notice that stopping only can to occur in the self-propelled vehicle deceleration automatically can not occur in after the acceleration afterwards.Therefore, when the specified conditions that satisfy particularly about deceleration value and/or vehicle speed value, just can trigger beginning according to method of the present invention.For example be lower than under a particular value (for example 20km/h) and the situation of deceleration value at motor vehicle speed and begin greater than 0 (the negative acceleration of self-propelled vehicle promptly having occurred) according to method of the present invention.Particularly state parameter can provide by the CAN bus, does not need extra sensor like this.If combustion engine does not stop as estimating, without any shortcoming yet.Conventional standard control of fuel supply strategy can be handled the petrol storage tank of filling without a doubt.
Predefined oil pressure threshold value is chosen to especially make that when engine starting, oil pump can needn't be worked in a certain period.Especially, petrol storage tank is filled providing apparently higher than the oil pressure of threshold value so that margin f sefety to be provided, and/or consider the deceleration/decel that increases in the time period that stops up to self-propelled vehicle that calculates as described above.Required oil pressure can only be provided by the oil mass in the petrol storage tank in this time period.Be cranking internal combustion engine, on-vehicle battery needn't provide electric energy for oil pump when engine crankshaft drives.This has just saved corresponding electric energy to be used for cranking internal combustion engine.Behind the engine starting, required electric energy can be provided by petrol-electric generating set.This has just saved the load of on-vehicle battery.Also can be used for the self-propelled vehicle of traditional pure combustion engine according to method of the present invention, this moment automatically start/stop device stop automatically that to be used at motor vehicle speed be 0 to stop combustion engine when stopping automatically.Also can be used for the self-propelled vehicle of hybrid power according to method of the present invention, this moment automatically start/stop device stop automatically being applied to from the conversion of engine mode to electric motor mode.
Especially, state parameter is a deceleration value, and whether motor vehicle speed or braking mode have adopted braking.The a plurality of state parameters of preferred use.For example braking mode can be the signal that is used to begin according to the inventive method, and/or the combination of car speed and deceleration value can be used to calculate the time point that following self-propelled vehicle stops.
In a kind of preferred form of implementation, development and/or calculated with actual values based at least one state parameter (particularly motor vehicle speed and deceleration value) go out standing time, until this standing time, motor vehicle speed just be 0 and/or combustion engine and the following oil pressure when calculating standing time and finishing takes place to stop automatically owing to automatic start/stop device.Standing time t
StopCan calculate (t by the ratio of vehicle actual speed v and actual deceleration degree value a
Stop=v/a), wherein the actual deceleration degree can be determined by the development of car speed (
Wherein
). additive incrementation a period of time particularly for safety. the time period of increase can be a percentum p of the standing time that calculates of passing ratio v/a, 1%≤p≤25% wherein, especially 2%≤p≤20%, preferred 3%≤p≤15% and 5%≤p≤10% most preferably.If start/stop device provides a self-propelled vehicle to stop afterwards until the self-braking minimum delay of beginning automatically, this delay is enough safety time normally, so just can about the self-propelled vehicle that calculated not for security purpose extra time section situation under stop to calculate standing time.If the maximum filling time of the retardation ratio petrol storage tank that automatic start/stop device will carry out is long, so just can be about calculating standing time owing to automatic start/stop device makes combustion engine that self-braking time point take place.At this moment consider preferably that an extra time period is used for determining standing time, so that remain on safety one side of the minimum oil pressure of wishing with respect to fuel-feed system.
If the stopping automatically being disengaged of preferred start/stop device automatically forbidden (unblocked), then activate oil pump, wherein stop disabled under following situation especially automatically, that is: the electric charge of on-vehicle battery is lower than a predefined value, the temperature value of vehicle part and/or other value have exceeded default scope, and/or combustion engine control is in by the pattern of low subsystem override, during especially by driving control system or air-conditioner control system override.Consider in some cases start/stop device automatically stop automatically disabled.There is no need in this case outside common standard control of fuel supply strategy, to fill petrol storage tank.Stop the filling extra according to method of the present invention, stop then disabled automatically petrol storage tank.The filling of petrol storage tank and emptying only according to common standard control of fuel supply strategy.If like this, so just can control higher minimum oil pressure and/or higher petrol storage tank minimum oil volume, therefore stop automatically being disengaged when forbidding when forbidden,, also be in or can reach predefined oil pressure threshold value fast even static its speed of self-propelled vehicle is 0.
Especially, this pre-set threshold is based on the packing volume V of petrol storage tank and the maximum packing volume V of petrol storage tank
MaxRatio determine 0.75≤V/V wherein
Max≤ 0.99,0.85≤V/V especially
Max≤ 0.95, preferred V/V
Max=0.90 ± 0.02.This is to consider that oil pressure depends primarily on petrol storage tank in-to-in hydrostatic column pressure.The control oil pressure can be undertaken by control oil storage hand-dipping.
Preferred oil pump can electricly drive, and also is suitable for being driven by the electric energy from the electrical generator that braking force is provided to self-propelled vehicle.The chaufeur glancing impact, the braking energy of self-propelled vehicle can be used for operating oil pump.Not to have wasted braking energy, be used to operate oil pump and/or to the electric energy of charging on-vehicle battery but braking energy changed into by the electrical generator of supporting braking procedure to small part.There is no need to adopt part to come by oil pump pump oil by energy and/or the employing on-vehicle battery that combustion engine provides.
The invention still further relates to a controller that is used to carry out described method, wherein this controller comprises at least one sensor, and this sensor is used for deceleration and/or at least one state parameter of explorer motor-car, and this state parameter is relevant with the deceleration behavior; A quantitative data input that is used to be connected to the gas feeder controller; A calculating unit is used for estimating according to state parameter and actual control of fuel supply strategy the following oil pressure of gas feeder; One is connected to the binary pair output that is used for filling the oil pump of gas feeder petrol storage tank under estimated following oil pressure is lower than the situation of predetermined threshold value of oil pressure.The gas feeder controller can provide common standard control of fuel supply strategy for fuel-feed system.Because quantitative data input, the built-in variable of gas feeder controller can be by used according to controller of the present invention.Detect the sensor that slows down and to use car speed, so for example just can compare to survey deceleration whether occurs two of two the different time point measurements different speed of a motor vehicle as state parameter.Binary pair output can be a switch that is used to open or close oil pump.Binary pair output especially is connected on the oil pump in parallel with the gas feeder controller, triggers based on the oil pump of the control of gas feeder controller like this and trigger based on the oil pump according to controller control of the present invention just can superpose.Because petrol storage tank is just filled before stopping automatically possible, when combustion engine starts once more, just can guarantee sufficiently high oil pressure, wherein, is used to finish the not prolongation of self-braking time period.After self-propelled vehicle stops to beginning the self-braking time period even can shortening.This makes the consumption of fuel and the CO of combustion engine
2Discharging is reduced and the low excessively problem of oil pressure when not having engine starting.
The invention still further relates to and be used for self-propelled vehicle and particularly have the combustion engine of self-propelled vehicle of automatic start/stop device and/or the fuel-feed system of driving system, wherein this fuel-feed system comprises an oil circuit that is used for providing to combustion engine oil, one is used for from the oil pump of oil circuit pump oil, the petrol storage tank storing oil and oil pressure is provided, wherein this petrol storage tank is connected to the oil pump that is used to fill this petrol storage tank, and a controller, can be connected to the oil pump that is used to carry out preceding method by previous designs.Because petrol storage tank is filled before stopping automatically possible, can guarantee sufficiently high oil pressure when combustion engine starts once more, wherein be used to finish the self-braking time period do not prolong.Self-propelled vehicle stops afterwards to beginning the self-braking time period even may being shortened.This makes the consumption of fuel and the CO of combustion engine
2Discharging is reduced and the low excessively problem of oil pressure when not having engine starting.
The invention still further relates to a kind of combustion engine of the self-propelled vehicle that is used for especially having automatic start/stop device and/or the gas feeder system of driving system, wherein, the gas feeder system comprises: the oil circuit that is used for oil is provided to combustion engine; Be used for sending oil pump by oil circuit with oil pump; Be used for oil in reserve and the petrol storage tank of oil pressure is provided, wherein, petrol storage tank links to each other with the oil pump that is used to fill petrol storage tank; And controller, this controller can be as designing above-mentionedly, links to each other with the oil pump that is used to carry out said method.Because petrol storage tank is filled before stopping automatically possible, thereby has guaranteed enough oil pressure when combustion engine starts once more, wherein, is used to realize that the self-braking time period does not prolong.Self-propelled vehicle stops afterwards to beginning the self-braking time period even may being shortened.This makes the consumption of fuel and the CO of combustion engine
2Discharging is reduced and the low excessively problem of oil pressure when not having engine starting.
These and other feature of the present invention is by hereinafter apparent in conjunction with the elaboration of preferred implementing form.
Description of drawings
In the accompanying drawings:
Fig. 1 shows the time dependent scheme drawing of the speed of a motor vehicle.
The specific embodiment
As shown in Figure 1, self-propelled vehicle has car speed v
1And can be at moment t
1Slow down.Under the constant hypothesis of deceleration/decel, car speed descends, until moment t
3Reach car speed v
0=0km/h. is usually at car speed v
0Be 0 self-braking moment t up to the automatic start/stop device start of evolution car combustion engine of self-propelled vehicle
4Need a period of time.
From moment t
1Beginning is monitored at moment t according to the method according to this invention
4Whether have minimum oil pressure and offer fuel-feed system.When for example the moment is t at present
2The time, based on actual vehicle speed v
2With the actual acceleration value
Calculating is up to moment t
4Standing time t
StopConsideration reaches after 0 to the automatic start/stop device of self-propelled vehicle from motor vehicle speed and begins self-braking delay time of t
Delay=t
4-t
3When calculate remaining time t under the situation of oil pump full power running according to method of the present invention
StopWhen being enough to arrive the minimum oil pressure of hope hardly, oil pump just is activated filling petrol storage tank, thereby the oil pressure of hope is provided for fuel-feed system by oil pump.When combustion engine at moment t
4Stop, just can guaranteeing to have enough oil pressure does not need to operate simultaneously oil pump with cranking internal combustion engine.
Claims (8)
1. the method for operation of the gas feeder of the combustion engine of a self-propelled vehicle that is used for particularly having automatic start/stop device and/or driving system, wherein:
The deceleration of explorer motor-car,
Monitor at least one and the relevant state parameter of self-propelled vehicle deceleration behavior,
Based on the following oil pressure of described state parameter and actual control of fuel supply strategy estimation gas feeder, and
If the following oil pressure of estimating is lower than the predetermined threshold value of oil pressure, just activate the oil pump that is used to fill the gas feeder petrol storage tank.
2. in accordance with the method for claim 1, wherein, whether described state parameter is deceleration value, motor vehicle speed or braking mode, brakes.
3. according to claim 1 or 2 described methods, wherein, calculate a standing time (t based on the development and/or the actual value of described at least one state parameter, particularly motor vehicle speed and deceleration value
Stop), this standing time be motor vehicle speed be 0 and/or combustion engine the self-braking time takes place owing to automatic start/stop device, and calculate this standing time (t
Stop) following oil pressure when finishing.
4. according to each described method in the claim 1 to 3, wherein, if automatically start/stop device stops automatically being disengaged and forbids just activating oil pump, wherein, automatically stop especially to be under an embargo under following situation: the electric charge of on-vehicle battery is lower than a predefined value, the temperature value of one vehicle part and/or other value exceed predefined scope, and/or combustion engine control is in by the pattern of a subsystem, particularly driving control system or air-conditioner control system override.
5. according to each described method in the claim 1 to 4, wherein, this pre-set threshold is based on the packing volume V of petrol storage tank and the maximum packing volume V of petrol storage tank
MaxRatio determine 0.75≤V/V wherein
Max≤ 0.99, special 0.85≤V/V
Max≤ 0.95, preferred V/V
Max=0.90 ± 0.02.
6. according to each described method in the claim 1 to 5, wherein, described oil pump can electrically be driven, and is suitable for being driven by the electric energy from the electrical generator that braking force is provided to self-propelled vehicle.
7. controller that is used for carrying out according to each described method of claim 1 to 6 comprises:
At least one sensor, described sensor are used for the deceleration of explorer motor-car and/or the state parameter that at least one is relevant with the deceleration behavior;
A quantitative data input that is connected to the gas feeder controller;
A calculating unit is used for estimating according to described state parameter and actual control of fuel supply strategy the following oil pressure of gas feeder;
One is connected to the binary pair output that is used for filling the oil pump of gas feeder petrol storage tank under estimated following oil pressure is lower than the situation of predetermined threshold value of oil pressure.
8. the combustion engine of a self-propelled vehicle that is used for particularly having automatic start/stop device and/or the fuel-feed system of driving system, described fuel-feed system comprises:
An oil circuit that is used for oil is offered combustion engine,
One is used for sending oil pump by oil circuit with oil pump,
An oil in reserve also provides the petrol storage tank of oil pressure, and wherein, this petrol storage tank is connected to the oil pump that is used to fill this petrol storage tank, and
One this controller is connected on the oil pump according to the described controller of claim 7, is used for carrying out according to each described method of claim 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0914479A GB2472812A (en) | 2009-08-19 | 2009-08-19 | Method of operating an oil supply using an estimated future oil pressure |
| GB0914479.1 | 2009-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101992772A true CN101992772A (en) | 2011-03-30 |
Family
ID=41171601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102607491A Pending CN101992772A (en) | 2009-08-19 | 2010-08-19 | Method of operating oil supply using estimated future oil pressure |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110046847A1 (en) |
| CN (1) | CN101992772A (en) |
| GB (1) | GB2472812A (en) |
| RU (1) | RU2010134534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510629A (en) * | 2015-12-09 | 2016-04-20 | 南车株洲电力机车有限公司 | Urban rail vehicle zero speed determination method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2491626B (en) * | 2011-06-09 | 2016-05-04 | Ford Global Tech Llc | A system and method for monitoring engine oil pressure |
| US9260986B2 (en) | 2012-01-31 | 2016-02-16 | Ford Global Technologies, Llc | Oil pressure scheduling based on engine acceleration |
| GB201309954D0 (en) * | 2013-06-04 | 2013-07-17 | Ford Global Tech Llc | A method of controlling an engine oil supply |
| US20140379241A1 (en) * | 2013-06-20 | 2014-12-25 | GM Global Technology Operations LLC | Hydraulic accumulator temperature estimation for controlling automatic engine stop/start |
| KR20210032152A (en) * | 2019-09-16 | 2021-03-24 | 현대자동차주식회사 | Method for controlling oil pump of vehicle |
| CN111042929B (en) * | 2019-12-09 | 2022-06-24 | 中国人民解放军总参谋部第六十研究所 | Method for controlling rotating speed loop of small and medium-sized turbojet engine supplied with oil by adopting oil pump |
| CN114294119B (en) * | 2021-12-29 | 2023-07-14 | 重庆潍柴发动机有限公司 | Engine control method, engine and ship |
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| JP5051007B2 (en) * | 2008-06-03 | 2012-10-17 | 日産自動車株式会社 | Control device for releasing idle stop of vehicle drive system |
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- 2010-08-18 RU RU2010134534/06A patent/RU2010134534A/en not_active Application Discontinuation
- 2010-08-18 US US12/859,192 patent/US20110046847A1/en not_active Abandoned
- 2010-08-19 CN CN2010102607491A patent/CN101992772A/en active Pending
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| EP0990793A2 (en) * | 1998-09-28 | 2000-04-05 | Toyota Jidosha Kabushiki Kaisha | Stop and restart device for vehicular engine |
| US6401012B1 (en) * | 1999-08-26 | 2002-06-04 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle control apparatus |
| EP1316727A1 (en) * | 2000-09-05 | 2003-06-04 | Toyota Jidosha Kabushiki Kaisha | Electric oil pump controller |
| CN1743707A (en) * | 2004-09-01 | 2006-03-08 | 本田技研工业株式会社 | Hydraulic pressure supplying device for transmission |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2472812A (en) | 2011-02-23 |
| GB0914479D0 (en) | 2009-09-30 |
| RU2010134534A (en) | 2012-02-27 |
| US20110046847A1 (en) | 2011-02-24 |
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Application publication date: 20110330 |