CN104234856A - Method for controlling vacuum pressure in braking force amplifier of motor vehicle - Google Patents
Method for controlling vacuum pressure in braking force amplifier of motor vehicle Download PDFInfo
- Publication number
- CN104234856A CN104234856A CN201410231038.XA CN201410231038A CN104234856A CN 104234856 A CN104234856 A CN 104234856A CN 201410231038 A CN201410231038 A CN 201410231038A CN 104234856 A CN104234856 A CN 104234856A
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- Prior art keywords
- vacuum pressure
- time point
- comparison value
- combustion engine
- internal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10229—Fluid connections to the air intake system; their arrangement of pipes, valves or the like the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
- F02P5/1508—Digital data processing using one central computing unit with particular means during idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/41—Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to a method for controlling the vacuum pressure (p2) in a braking force amplifier (7) of a motor vehicle, wherein the braking force amplifier (7) is connected to an intake pipe of an internal combustion engine (1) in a diversion manner ground to generate the vacuum pressure (p2). In the measurement of the vacuum pressure (p2) in the braking force amplifier, and when the vacuum pressure (p2) exceeds a predetermined comparison value (pV), the following steps are carried out including a) temporarily enabling at least one unit (11; 12) driven by the internal combustion engine to be deactivated, and B) comprising at least one of the steps of increasing the idle speed, changing the ignition time point, injecting a greater amount of fuel, adjusting the intake valve opening time point, adjusting the exhaust valve opening time point, changing the throttle valve position and closing the exhaust gas recirculation valve.
Description
Technical field
The present invention relates to a kind of method for the Vacuum Pressure in the brake booster of controller motor-car.
Background technique
Known brake booster, it needs Vacuum Pressure to amplify the braking force produced by driver.Vacuum Pressure refers to a kind of pressure being less than external pressure.Also known, by brake booster water conservancy diversion is connected with the suction tude of internal-combustion engine and produces Vacuum Pressure.Under lower engine load, in suction tude, there is vacuum after throttle valve, this vacuum is usually enough for supplying brake booster or other vacuum customer.Especially, when in idle running, load is higher, the vacuum provided is inadequate.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of method for controlling combustion engine, can keep stable Vacuum Pressure by the method in brake booster or for other vacuum customer.
Described technical problem is solved by a kind of method and apparatus for the Vacuum Pressure in the brake booster of controller motor-car according to the present invention.The present invention other embodiment correspondingly by following describe provide.They can combine mutually with technical reasonable manner, can regulate the function being formed and exceed individual feature sum thus.Specification, additionally characterize and describe the present invention in detail especially by reference to the accompanying drawings.
Correspondingly specify a kind of method for the Vacuum Pressure in the brake booster of controller motor-car, wherein, described brake booster in order to produce Vacuum Pressure and water conservancy diversion be connected with the suction tude of internal-combustion engine, described method has following steps:
Vacuum Pressure in-measurement brake booster,
-when Vacuum Pressure exceedes default comparison value, temporarily, namely make at least one by oil-engine driven unit deexcitation momently.
Described unit can be the compressor of air-conditioning equipment or the generator (lighting generator) for generation of electric power.Temporarily only battery supplied can be passed through at this for the electric power needed for driving machine motor-car or internal-combustion engine.The temporary transient deexcitation of compressor can not be discovered by driver usually.When making additional unit deexcitation, the load that internal-combustion engine works reduces.Close the bypass valve of throttle valve and/or stable idle running thus further, thus the pressure in suction tude is reduced, and lower Vacuum Pressure can be produced.If necessary, addition of vacuum pump for generation of Vacuum Pressure can be saved by performing described method in Motor Vehicle.
In one embodiment, Vacuum Pressure is measured by pressure transducer.
By this embodiment, closed control loop can be formed, utilize this control loop directly can adjust Vacuum Pressure.
In a kind of alternative or supplementary embodiment, Vacuum Pressure is determined according to characteristic field indirectly, in this characteristic field by least one internal-combustion engine rotational speed and Current internal combustion engines configuration of load to Vacuum Pressure.
The sensor for measuring Vacuum Pressure can be saved thus where necessary, thus manufacture cost and maintenance cost can be saved.Other parameter for indirect measurement vacuum can be such as throttle valve position, ignition time point, intake & exhaust valves opening and closing time point and about several seconds information to the current change of the rotating speed within the scope of a few minutes and engine load.
According to a kind of embodiment, when Vacuum Pressure exceedes comparison value, additionally improve the racing speed of internal-combustion engine.
By improving racing speed, air requirements and the air inlet power correspondingly acted on suction tude or brake booster of internal-combustion engine also improve.Therefore, when the deexcitation of unit itself is still not enough to produce the Vacuum Pressure lower than comparison value, enough low Vacuum Pressure can promptly be produced.
According to another embodiment, when described Vacuum Pressure exceedes comparison value, the ignition time point at least one cylinder for internal-combustion engine being started to light a fire in the idle mode changes into time point more early.
When by electronic spark advance, moment of torsion raises, and reduces air consumption when the racing speed remained unchanged by idle speed adjustment thus.Therefore, throttle valve is closed further by idle speed adjustment.This measure especially with improve the coefficient situation of racing speed under be practical.
According to another embodiment, when Vacuum Pressure exceedes comparison value, also close waste gas circulating valve.
Waste gas can be led back in suction tude by waste gas circulating valve.The additional volume of gas flows to into suction tude.By keeping closing waste gas circulating valve, additional gas volume flow can be turned off, and improve the oxygen content sucked in air.In suction tude, lower Vacuum Pressure is generated by this measure.
According to another embodiment, when Vacuum Pressure exceedes comparison value, the INO time point opening suction valve is adjusted on time point more early.
Make every effort to realize such INO time point, suck the air of maximum flow at this time point upper cylinder in the intake stroke.Such as when dallying, this INO time point is time point more early.
In another embodiment, when Vacuum Pressure exceedes comparison value, the outlet valve opening time point opening outlet valve is adjusted on more late time point.
Make every effort to realize such outlet valve opening time point, can combustion gas as much as possible at this time point upper cylinder, thus correspondingly can suck more volume of air in the intake stroke.With enough outlet valve opening time points for multiple operating point for starting point, the time point that this outlet valve opening time point is normally more late.
According to another embodiment, when Vacuum Pressure exceedes comparison value, temporarily spray into more substantial fuel.
Which thereby enhance the moment of torsion exported by motor.Correspondingly can close throttle valve further, thus reduce the pressure in suction tude.
Described method and favourable embodiment can use in a motor vehicle, especially in for the control unit of controlling combustion engine.
Described control unit can have and the digitizing microprocessing unit (CPU) of storage system and bus system data cube computation, working storage (RAM) and storage device.Described CPU is designed for instruction that Treatment Design is the program within the storage system of preserving, detects the input signal of data/address bus and output signal is outputted to data/address bus.Storage system can have different storage mediums, as optics, magnetic, solid with other medium not easily lost, this medium stores the corresponding computer program for running described method and advantageous embodiment.Described program can design like this, makes it to embody or to run method described herein, thus makes CPU can run the step of this method, and can controlling combustion engine thus.
The computer program with Program code instructions is applicable to run described method, runs the Overall Steps of each any embodiment when running described program on computers with box lunch.
Described computer program can read and application by the simple mechanism in the control unit existed, to be used for controlling combustion engine.
A kind of computer program with Program code instructions of regulation for this reason, this Program code instructions is stored in computer-readable data medium, runs the method according to each arbitrary embodiment when running described program product on computers with box lunch.Described computer program also can be selected in a control unit integrated in support.
In the mixed power system with the motor supporting internal-combustion engine, can be produced by motor and carry high-revolving driving torque, and unit deexcitation need not be made at this.Therefore, can temporarily produce lower suction press in mixed power system, this suction press forms corresponding less Vacuum Pressure in brake booster.
Another aspect of the present invention relates to a kind of equipment for the Vacuum Pressure in the brake booster of controller motor-car, wherein, for generation of Vacuum Pressure brake booster water conservancy diversion be connected with the suction tude of internal-combustion engine, described equipment has;
-for measuring the device of the Vacuum Pressure in brake booster, and
-for exceeding predetermined comparison value when Vacuum Pressure time temporarily make at least one by the device of oil-engine driven unit deexcitation.
In an embodiment of described equipment, measure Vacuum Pressure by pressure transducer.
In another embodiment of described equipment, be provided with this device, described device determines Vacuum Pressure according to characteristic field, in this characteristic field by least one internal-combustion engine rotational speed and Current internal combustion engines configuration of load to Vacuum Pressure.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, described device additionally improves the racing speed of internal-combustion engine.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, the ignition time point that at least one cylinder for internal-combustion engine is started to light a fire by described device in the idle mode changes into time point more early.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, described device closes waste gas circulating valve.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, the INO time point opening suction valve is adjusted to time point more early by described device.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, the outlet valve opening time point opening outlet valve is adjusted to more late time point by described device.
In another embodiment of described equipment, be provided with this device, when Vacuum Pressure exceedes comparison value, described device temporarily sprays into more substantial fuel.
Accompanying drawing explanation
Several embodiment is set forth in detail below in conjunction with accompanying drawing.In the accompanying drawings:
Fig. 1 schematically shows the internal-combustion engine with generator and the compressor driven by wedge belt equally driven by belt transmission,
Fig. 2 illustrates method flow schematic diagram, can run described method in the control unit of internal-combustion engine, to maintain the Vacuum Pressure of the vacuum pressure indoor of brake booster.
In the accompanying drawings, the component that identical or function is identical represents with identical reference character.
Embodiment
Fig. 1 schematically shows the internal-combustion engine 1 with multiple cylinder 2.Described internal-combustion engine 1 is applicable to drive unshowned Motor Vehicle.Cylinder 2 can be connected with suction tude 4 by suction valve 3 water conservancy diversion.Suction valve 3 is driven by the admission cam shaft 5 rotated.The air conveying to suction valve 3 or cylinder 2 is regulated by throttle valve 6.Operationally, the unshowned piston be arranged in cylinder 2 sucks air when suction valve 3 is opened by suction tude 4.Thus, described piston produces suction press p1, and it is less than external pressure p.In negative pressure chamber 17, Vacuum Pressure p2 is produced by the connecting pipeline 24 between the negative pressure chamber 17 in suction tude 4 and brake booster 7.Ensure that air can not be back in brake booster 7 or negative pressure chamber 17 by safety check 25.Pressure difference between external pressure p and Vacuum Pressure p2 can be used in brake booster 7, so that can axially moving film 8 when brake activation power amplifier 7, and in unshowned braking system, forms higher hydraulic pressure thus.
Internal-combustion engine 1 has bent axle 9.Internal-combustion engine 1 drives two units by belt transmission 10, i.e. compressor 11 and generator 12.Described generator 12 produces the electric energy being used for supplying machine motor-car.Compressor 11 compressed fluid, such as freezing mixture, is used for air-conditioning equipment is operated.Compressor 11 and belt transmission 10 can be made to take off coupling by coupling 13.In addition, internal-combustion engine 1 also has exhaust cam shaft 26, outlet valve 27 and outlet pipe 30, thus can derive waste gas from cylinder 2.Exhaust cam shaft 26 can be conditioned the samely with admission cam shaft 5, forms the variable opening and closing time point of outlet valve 27 to regulate.Outlet pipe 30 can be connected with suction tude 4 by waste gas circulating valve 28 water conservancy diversion.
Internal-combustion engine 1 is output torque M when rotating speed is n.This moment of torsion M and a lot of relating to parameters, except rotating speed n, also relevant with the position of firing angle, INO time point, outlet valve opening time point and throttle valve 6.Firing angle is crank shaft angle, lights a fire for each cylinder 2 at this crank shaft angle place individually through ignition installation 14.For this reason, ignition installation 14 is connected with spark plug 15 conductively.
In addition, Motor Vehicle also has control unit 16, and this control unit transmits data ground and is connected with unit with above-mentioned component, thus makes control unit 16 can receive the data from unit and component and can to unit and component transmission data.The connection of this data transmission represents by a dotted line.
Control unit 16 is designed for the Vacuum Pressure p2 measuring and exist in brake booster 7 or in the vacuum pressure room 17 of brake booster 7.Described measurement can directly be undertaken by pressure transducer 18.Alternatively or addedly, control unit 16 can indirectly according to position and/or the engine load determination Vacuum Pressure p2 of one or more parameter relevant with Vacuum Pressure p2 or p1, such as rotating speed n and throttle valve 6.
If p2 has exceeded comparison value, then can take the measure on engine technology, Vacuum Pressure p2 to be reduced to again the level (lower than comparison value) of expectation.
Especially when dallying, after recording Vacuum Pressure p2 and being increased beyond comparison value, throttle valve 6 can be closed further, firing angle being adjusted to time point more early simultaneously or improving racing speed.In addition, can also so regulate admission cam shaft 5, suction valve 3 is opened in the scope with higher air requirements, especially in the intermediate range of the regulation range of admission cam shaft 5.More late based on the INO time, time point is more early always suitable.In addition, can also so regulate exhaust cam shaft 26, make to need more air.In addition, compressor 11 and generator 12 deexcitation can also be made.By reducing the power stage of generator 12, generator 12 deexcitation can be made.Unshowned battery can be utilized during deexcitation to power for the electrical load on Motor Vehicle.Compressor 11 can be deactivated by opening coupling 13.Also just can reduce the power stage of generator, thus effect produces less braking torque MG.When compressor 11 is the compressors that can regulate, can also so regulate compressor 11, thus on internal-combustion engine, act on less braking torque MK.Thus, increase rotating speed n when other parameter is identical, thus make internal-combustion engine need larger volume of air, and correspondingly make Vacuum Pressure p2 lower.In addition, when inertia traveling (Motor Vehicle drives internal-combustion engine conversely by its inertia at this moment), throttle valve 6 can be closed further, to reduce Vacuum Pressure further when needed.
Fig. 2 illustrates the method flow that can run in control unit 16, is used for the Vacuum Pressure p2 in brake booster 7 to remain on below comparison value pV.For this reason, after beginning step 19, Vacuum Pressure p2 is measured in step 20.Subsequently, inquiry in inquiry step 21, whether Vacuum Pressure is lower than comparison value pV.If the result of inquiry step 21 is "Yes", then can terminates this program in step 22, described program can be restarted subsequently.Described program can continuous service in a control unit 16, or is detecting that higher Vacuum Pressure p2 or the time point (when such as dallying) that may raise at Vacuum Pressure p2 just start described program.If the result of inquiry step 21 is "No", then in step 23, takes the measure reducing Vacuum Pressure p2, namely produce the pressure lower than comparison value pV.This measure can be selected from the list of described gained above following summary, and wherein, the combination of these measures is also feasible:
-improve rotating speed n,
The position of-change throttle valve 6,
-INO time point changed into time point more early,
-outlet valve opening time point is changed into more late time point,
-change firing angle,
-change firing angle, improve rotating speed n simultaneously,
-reduce AGR by closedown waste gas safety check 28 to lead,
-improve such as by the fuel fractions that oil nozzle 29 sprays into,
-make by oil-engine driven unit deexcitation, and
-be decreased through the power consumpiton of unit that internal-combustion engine 1 drives.
Although exemplarily describe some possible embodiments in the above description, should be understood that still there is other embodiment variant scheme a large amount of by all known and technical characteristics easily expected of technician and mode of execution in addition combinations.In addition it should also be understood that exemplary mode of execution is as just an example, this embodiment limit the scope of the invention never in any form, application possibility and configuration.Provide a kind of technological guidance for realizing at least one illustrative embodiments to technician more by aforementioned explanation.Self-evidently, in exemplary implementation, can revise in a large number the function of element and layout, only otherwise deviate from the protection domain of technological scheme described in claims and equivalent technical solutions thereof.
List of numerals
1 internal-combustion engine
2 cylinders
3 outlet valves
4 suction tude
5 admission cam shafts
6 throttle valve
7 brake boosters
8 diaphragms
9 bent axles
10 belt transmission
11 compressors
12 generators
13 couplings
14 ignition installations
15 spark plugs
16 control units
17 vacuum pressure rooms
18 pressure transducers
19 start
20 steps
21 inquiries
22 terminate
23 steps
24 connecting pipelines
25 safety check
26 exhaust cam shafts
27 outlet valves
28 waste gas circulating valves
29 oil nozzles
30 outlet pipes
M moment of torsion
The braking torque of MG generator
The braking torque of MK coupling
N rotating speed
P external pressure
P1 suction press
P2 Vacuum Pressure
PV comparison value
Claims (18)
1. the method for the Vacuum Pressure (p2) in the brake booster for controller motor-car (7), wherein, described brake booster (7) is connected with the suction tude of internal-combustion engine (1) to produce described Vacuum Pressure (p2) water conservancy diversion ground, wherein, measure the Vacuum Pressure (p2) existed in described brake booster, and when described Vacuum Pressure (p2) exceedes predetermined comparison value (pV), carry out
A) temporarily make at least one by oil-engine driven unit (11; 12) deexcitation, and
B) at least one step in group is comprised the following steps: improve racing speed, change ignition time point, spray into more substantial fuel, adjustment INO time point, adjustment outlet valve opening time point, change throttle valve position and close waste gas circulating valve.
2. method according to claim 1, is characterized in that, measures described Vacuum Pressure (p2) by pressure transducer (18).
3. method according to claim 1, it is characterized in that, determine described Vacuum Pressure (p2) according to characteristic field, in this characteristic field, give described Vacuum Pressure (p2) by least one internal-combustion engine rotational speed (n) and Current internal combustion engines configuration of load.
4. method according to claim 1, is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), additionally improves the racing speed of described internal-combustion engine (1).
5. according to the method one of Claims 1-4 Suo Shu, it is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), the ignition time point at least one cylinder (2) for internal-combustion engine (1) being started to light a fire in the idle mode changes into time point more early.
6. according to the method one of claim 1 to 5 Suo Shu, it is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), also close waste gas circulating valve (28).
7. according to the method one of claim 1 to 6 Suo Shu, it is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), the INO time point opening suction valve (3) is adjusted to time point more early.
8. according to the method one of claim 1 to 7 Suo Shu, it is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), the outlet valve opening time point opening outlet valve (27) is adjusted to more late time point.
9. according to the method one of claim 1 to 8 Suo Shu, it is characterized in that, when described Vacuum Pressure (p2) exceedes comparison value (pV), temporarily spray into more substantial fuel.
10. for an equipment for the Vacuum Pressure in the brake booster of controller motor-car, wherein, brake booster is connected with the suction tude of internal-combustion engine to produce Vacuum Pressure (p2) water conservancy diversion ground, and described equipment has;
-for measuring the device of the Vacuum Pressure in brake booster, and
-for exceeding predetermined comparison value when Vacuum Pressure time temporarily make at least one by the device of oil-engine driven unit deexcitation.
11. equipment according to claim 10, is characterized in that, measure described Vacuum Pressure (p2) by pressure transducer (18).
12. equipment according to claim 10, is characterized in that, are provided with this device, and described device determines Vacuum Pressure according to characteristic field, at least one internal-combustion engine rotational speed and Current internal combustion engines load and Vacuum Pressure phase configuration in this characteristic field.
13. equipment according to claim 10, is characterized in that, are provided with this device, and when Vacuum Pressure exceedes comparison value, described device additionally improves the racing speed of internal-combustion engine.
14. according to claim 10 to the equipment one of 13 described, it is characterized in that, be provided with this device, when Vacuum Pressure exceedes comparison value, the ignition time point that at least one cylinder for internal-combustion engine is started to light a fire by described device in the idle mode changes into time point more early.
15., according to claim 10 to the equipment one of 14 described, is characterized in that, are provided with this device, and when Vacuum Pressure exceedes comparison value, described device closes waste gas circulating valve.
16., according to claim 10 to the equipment one of 15 described, is characterized in that, are provided with this device, and when Vacuum Pressure exceedes comparison value, the INO time point opening suction valve is adjusted to time point more early by described device.
17. according to claim 10 to the equipment one of 16 described, and it is characterized in that, be provided with this device, when Vacuum Pressure exceedes comparison value, the outlet valve opening time point opening outlet valve is adjusted to more late time point by described device.
18. according to claim 10 to the equipment one of 17 described, and it is characterized in that, be provided with this device, when Vacuum Pressure exceedes comparison value, described device temporarily sprays into more substantial fuel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013009477.1 | 2013-06-06 | ||
| DE102013009477.1A DE102013009477A1 (en) | 2013-06-06 | 2013-06-06 | Method for controlling a vacuum pressure in a brake booster of a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104234856A true CN104234856A (en) | 2014-12-24 |
Family
ID=52008835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410231038.XA Pending CN104234856A (en) | 2013-06-06 | 2014-05-28 | Method for controlling vacuum pressure in braking force amplifier of motor vehicle |
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| Country | Link |
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| CN (1) | CN104234856A (en) |
| DE (1) | DE102013009477A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3042002B1 (en) * | 2015-10-01 | 2017-11-24 | Peugeot Citroen Automobiles Sa | METHOD FOR CONTROLLING THE OPERATION OF A THERMAL MOTOR OF A VEHICLE |
| US11008952B2 (en) * | 2018-07-16 | 2021-05-18 | Cummins Inc. | Vacuum and compression release braking in spark-ignited engines |
| CN115506905B (en) * | 2022-09-22 | 2024-06-14 | 中国第一汽车股份有限公司 | Hybrid vehicle and engine starting auxiliary method, system, device and medium |
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| US5950594A (en) * | 1996-09-17 | 1999-09-14 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling fuel injection in stratified charge combustion engine |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102013009477A1 (en) | 2014-12-11 |
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