CN102529968A - Method and apparatus for monitoring the driving apparatus of a driving system of a vehicle - Google Patents
Method and apparatus for monitoring the driving apparatus of a driving system of a vehicle Download PDFInfo
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- CN102529968A CN102529968A CN2011104110717A CN201110411071A CN102529968A CN 102529968 A CN102529968 A CN 102529968A CN 2011104110717 A CN2011104110717 A CN 2011104110717A CN 201110411071 A CN201110411071 A CN 201110411071A CN 102529968 A CN102529968 A CN 102529968A
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- inertia
- change curve
- propelled vehicle
- speed change
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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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
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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
- 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
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
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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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/045—Detection of accelerating or decelerating state
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
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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
- 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
- B60W2030/18081—With torque flow from driveshaft to engine, i.e. engine being driven by vehicle
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope
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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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/40—Coefficient of friction
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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
- 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18136—Engine braking
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/501—Vehicle speed
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/70—Input parameters for engine control said parameters being related to the vehicle exterior
- F02D2200/702—Road conditions
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- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
Abstract
The invention provides a method and apparatus for monitoring the driving apparatus of a driving system of a vehicle. The method for monitoring the defects of the driving system of a vehicle (1) comprises the following steps: confirming whether the vehicle is in inertia operation because the driving apparatus of a vehicle is not supposed to provide driving torque in the inertia operation; if the inertia operation is confirmed to be underway, calculating the velocity threshold changing curve in term of time based on the current speed of the vehicle; and determining the defects if the current vehicle speed exceeds the predetermined threshold based on the velocity threshold changing curve in the process having inertia operation.
Description
Technical field
The present invention relates to be used for the drive system of self-propelled vehicle, be particularly useful for the method that the defective that the unwelcome acceleration that causes self-propelled vehicle of actuating device is perhaps slowed down is monitored.
Background technology
A large amount of combustion engine function of combustion engine is implemented in the engine controll unit that combustion engine is triggered.When calculation error, bit flipping (Bitkipper) and analogue occurring, can in not adding the engine controll unit of insurance, produce mistake output, said mistake output can cause unwelcome such as because the acceleration that the too high emitted dose of fuel causes or cause the unwelcome deceleration that causes such as the activation through energy recovery function for hybrid drive under serious situation very in self-propelled vehicle system (Fahrzeugverbund).Because the personnel's in the arteries of communication situation can occur endangering, so what be necessary is that said engine controll unit is discerned such defective independently and self-propelled vehicle is placed safe state through such defective.
The common scheme that is used for respect to such error condition engine controll unit being monitored is following:
The monitoring of-inertia: in this inspection, if chaufeur is not expressed the promotion hope, combustion engine does not just produce yet and promotes relevant drive torque so;
-moment monitoring: people are calculated the current drive torque that obtains expect that according to chaufeur setting value and the chaufeur that reads in redundantly moment compares through the counterplot of observation parameter;
-acceleration monitor: the current self-propelled vehicle acceleration/accel that will from the drive torque of combustion engine, obtain compares with the acceleration/accel that from the said chaufeur expectation moment that provides, obtains redundantly.
Independent inertia monitoring no longer is prior art at present, because only the operation point of operation point inertia operation is just monitored here.But this monitoring can only be implemented in the process of inertia operation, thereby the delay of reaction generally can occur monitoring until inertia operation next time.Thus, can only lingeringly detect at combustion engine and be not in the defective that inertia occurs when in service.Therefore monitor and these monitoring schemes of acceleration monitor as the additional moment that is provided with of inertia monitoring usually.
For the diesel driven device, said through the inspection combustion engine whether produce with promote this mode of relevant drive torque carry out the scheme of inertia monitoring can be with simple mode through the monitoring of institute's injected fuel amount be implemented.In service at inertia, should burner oil for diesel motor.On spark ignition engine, can not use this method, because fuel metering is a foundation with the present air-fill levels in the cylinder for spark ignition engine.
But the scheme of inertia monitoring has such advantage, and the expense that promptly is used for this range of operation is monitored significantly reduces owing to the simplification measure, because can check point-device expectation setting value.
Also because in service what supply with is not the fuel quantity that forms pushing torque at inertia, known inertia monitoring can not be overlapped easily and used on the spark ignition engine from the diesel engine.For spark ignition engine, also be actv. at inertia moment claimed apparatus in service (Momentanforderer), said moment claimed apparatus can require burner oil.When inertia activation moment in service claimed apparatus, the short time is interrupted the state and the necessary blanking of meanwhile said inertia monitoring of inertia operation.But; Extra moment claimed apparatus is not to affect self-propelled vehicle with accelerated mode; Because it only provides additional moment, need said additional moment to be used to move corresponding unit at this and must not be used to make self-propelled vehicle to quicken such as air-conditioning, electrical generator or similar devices and said additional moment.
In addition, in engine controll unit, use compensation method, said compensation method should compensate the extra energy minimizing of high-power duty ratio such as air-conditioning or similar load.Defective in such compensation mechanism can't be monitored through moment reliably and discern, thereby needs independent monitoring.
Because requirement aspect exhaust after-treatment, in the process of the inertia operation of spark ignition engine, occur the injection of fuel more and more frequently, thereby the monitoring of conventional inertia can not be had a mind to the free burial ground for the destitute and is used on the spark ignition engine.Or rather; Equally can the great drive torque of constituent relation when carrying out such injection; Discharge because the energy of institute's injected fuel flows as the waste gas of heat under the unconverted situation of moment, but can not when inertia is monitored, ignore this extra emitted dose.
Although can implement other monitoring scheme, meaningfully, also implement said monitoring extraly in that the inertia of spark ignition engine is in service for preventing unwelcome acceleration or slowing down self-propelled vehicle is monitored.
Summary of the invention
Therefore; Task of the present invention is; For carry all types of CD-ROM drive motors especially the self-propelled vehicle of spark ignition engine in order to prevent unwelcome acceleration or deceleration and the monitoring of self-propelled vehicle to be set in that inertia is in service, needn't employ the scheme of knowing from diesel engine that emitted dose is monitored at this.
This task is through by the described method that is used for the actuating device of the drive system that is used for self-propelled vehicle is monitored of claim 1 and through being resolved by the described a kind of device of claim arranged side by side, drive system and computer program.
Other favourable design plan of the present invention obtains explanation in the dependent claims.
According to first aspect, be provided with a kind of method that the defective of the drive system of self-propelled vehicle is monitored of being used for.This method may further comprise the steps:
-to confirm whether self-propelled vehicle is in inertia in service, and the actuating device of this self-propelled vehicle should not provide drive torque when inertia moves;
If-confirm said inertia operation, that just tries to achieve temporal threshold speed change curve on the basis of the present speed of a motor vehicle;
If-the speed of a motor vehicle surpasses through the given in advance threshold value of said threshold speed change curve, then confirm defective in the process that exists the inertia operation.
Monitoring scheme now detects the drive torque of combustion engine through the calculating of on the basis of the adjustable parameter of engine controll unit, carrying out, because the physical action to the drive torque of combustion engine of said adjustable parameter can't directly detect through sensor.Through the monitoring that the acceleration/accel that is produced by the drive torque of combustion engine or the speed of a motor vehicle that therefrom produces are carried out of top proposition, the calculating and also can detecting on the other hand that can save the complicacy of drive torque on the one hand be not directly in engine controll unit, to produce such as because oil suction, eductor defective, the unallowed deceleration and the analogue induced effects that occur because of the energy recovery of the mistake of hybrid vehicle.
In addition, this also realizes this result, i.e. monitoring again need not be confined to defective engine controll unit, but the motor vehicle assemblies that also can discern other is such as the defective on the defective fuel injector.
Above-mentioned speed monitoring can the inertia of spark ignition engine in service with the combination of acceleration monitor in all ranges of operation, combustion engine is carried out complete monitoring.
In addition; The monitoring of as stated above speed of a motor vehicle being carried out can be accomplished this point; Promptly in service such as detecting according to the too high compensation level of Power Train in-to-in loss in the defective that remains aspect the calculating of injected fuel amount at inertia, can not detect such defective through the moment monitoring.
Especially can through acceleration monitor and speed monitoring combine to produce a kind of monitoring scheme, this monitoring scheme is also enough under the situation of the information that does not have internal motor.In addition, the vehicularized type that is used for this monitoring scheme recedes into the background.
In addition, can stipulate that the threshold speed change curve is tried to achieve in the given in advance deceleration on straight highway section according to self-propelled vehicle, wherein consider given in advance the delaying of the friction drag that the motion to self-propelled vehicle exerts an influence.
Especially can come the threshold speed change curve is upgraded according to the sideways inclined degree.
According to a kind of embodiment, when surpassing given in advance difference, the difference between the present threshold value given in advance through said threshold speed change curve and the current speed of a motor vehicle can on the basis of the present speed of a motor vehicle, try to achieve the threshold speed change curve again.
Can stipulate, try to achieve said threshold speed change curve according to the given in advance braking deceleration of self-propelled vehicle.
If do not handle acceleration pedal, all un-activation of moment claimed apparatus and idle un-activation, that just can confirm the inertia operation.
According to a further aspect, be provided with one and be used for control monitor unit that the defective of the drive system of self-propelled vehicle is monitored, wherein this control monitor unit structure:
-to be used for confirming whether self-propelled vehicle is in inertia in service, and the actuating device of self-propelled vehicle should not provide drive torque when inertia moves;
-be used for when confirming said inertia operation, on the basis of the present speed of a motor vehicle, trying to achieve temporal threshold speed change curve;
-be used for when the speed of a motor vehicle surpasses through the given in advance threshold value of said threshold speed change curve, confirming defective in the process that has the operation of said inertia.
According to a further aspect, be provided with the drive system that is used for self-propelled vehicle.This drive system comprises:
-be used for the CD-ROM drive motor of driving machine motor-car;
-be used for the engine controll unit of controlling and driving motor;
-above-mentioned monitoring unit.
Be provided with a kind of computer program according to a further aspect, this computer program comprises program code, and this program code is implemented said method when it is carried out on data processing unit.
Description of drawings
Below by means of accompanying drawing to the illustrated in detail of preferred embodiment carrying out of the present invention.Accompanying drawing illustrates as follows:
Fig. 1 has the scheme drawing that is used at the self-propelled vehicle of the inertia device that the actuating device defective is monitored in service; And
Fig. 2 is used for the diagram of circuit that describes by the method that is used to implement the monitoring of motor control system of the present invention.
The specific embodiment
Fig. 1 shows the scheme drawing of the self-propelled vehicle 1 with the control monitor unit 2 that is used for the defective of drive system is monitored such as the defective of motor control system.Said control monitor unit is connected with engine controll unit 3, and this engine controll unit 3 carries out the triggering of said CD-ROM drive motor 4.As CD-ROM drive motor 4, consider every kind of possible power machine, such as diesel engine, spark ignition engine, electro-motor, gas engine and similar power machine.
In addition, said engine controll unit 3 is connected with acceleration pedal 5, is used to write down about the explanation of accelerator pedal position and for it distribute chaufeur expectation moment.In addition, said engine controll unit 3 is configured to trigger said CD-ROM drive motor 4 according to chaufeur expectation moment, makes it be provided for promoting the drive torque that is equivalent to chaufeur expectation moment basically of self-propelled vehicle 1.
Said control monitor unit 2 at first is used for the driving situation at inertia monitoring CD-ROM drive motor in service.Said for this reason control monitor unit 2 is carried out the method for explaining through the diagram of circuit of Fig. 2 that is used to monitor the actuating device defective.
In step S1, check whether have the inertia operation.This can be through carrying out the monitoring of acceleration pedal 5, if wherein the chaufeur of self-propelled vehicle 1 is totally released acceleration pedal 5 or is placed on its initial position in other words in the dead position, then should have the inertia operation.
If identify inertia operation (selecting: be), that just checks in step S2 whether motor system inside does not have other device to want demanded drive torque to CD-ROM drive motor 4 yet.If this situation (selecting: be), that continues this method with step S3, otherwise (selects :) do not jump back to step S1.
In step S3, continue inspection, whether motor rotary speed is greater than the idling speed of maximum.Maximum idling speed is confirmed the higher extreme value that is interpreted as idling of range of speed.The inquiry of step S3 guarantees for combustion engine, the drive torque that the idle device is stopped using and do not required the additional idle device by activating to provide to CD-ROM drive motor 4.If find the idling speed (select: be) of motor rotary speed greater than maximum, that just continues this method with step S4.Otherwise (select :) just do not jump back to step S1.Also can this information of said idle device un-activation directly be transferred to said control monitor unit as replacement scheme.
If there is not inertia operation (step S1; Do not select: not) and/or not have other moment claimed apparatus be actv. (step S2; Select: not) and/or motor rotary speed (step S3, select: not), that just jumps back to step S1 less than the idling speed of maximum.Said step S1 can be provided with or also can only partly be provided with to S3 in any order.Such as only idle was not set in the past for electric actuating device for hot combustion engine.
If find that to the inquiry of S3 not having the moment claimed apparatus is actv. through step S1, that just can think, it is in service and only in rolling that self-propelled vehicle 1 is in inertia, and wherein the loss due to friction of its speed CD-ROM drive motor 4 of only passing through to be connected reduces.In the plane, owing to the friction of rolling of motor drag torque produces deceleration slightly.Monitoring to actuating device is intended to only come further design speed according to this deceleration.Therefore in step S4 when finding not have the moment claimed apparatus and do not have the idle device to be actv.; Detect the current speed of a motor vehicle and go out to send to try to achieve the threshold speed change curve from the said current speed of a motor vehicle, this threshold speed change curve for threshold speed, be on the detected speed of a motor vehicle of the moment that adopts the inertia operation with specified quantitative in the moment of taking inertia operation and its change curve corresponding to self-propelled vehicle 1 only because the caused known or deceleration of measurement in advance of friction of rolling and motor drag torque.Said threshold speed change curve can be preferably shows as the continuous change curve of the linearity of the negative gradient of having of threshold speed.
In ensuing process, in step S5, inquire about, whether the current speed of a motor vehicle is under the threshold speed change curve of trying to achieve among the step S4.If this situation (selecting: be), that just continues this method with step S6.During the defect situation in appearing at step S5, found through the inspection of the speed of a motor vehicle being carried out about the threshold speed change curve, the actual speed of a motor vehicle can rise very soon and surpass formed changes of threshold curve in step S4, and this point then just makes the people identify defective.Such defective can be represented with suitable manner in step S7.The corresponding urgent operation of self-propelled vehicle can be set in addition.
In step S6 such as through with check that in step S1 similar inquiry in the S3 whether still not having the moment claimed apparatus is actv..If still not having other moment claimed apparatus is actv. (selecting: be); Just jump back to step S5 (dotted line) so in this embodiment; Otherwise jump back to step S1 and implement whether to exist the such inquiry of inertia operation again to S3, thereby wait for inertia operation next time in order to implement above-mentioned inspection again according to step S1.
If do not have defective at the beginning in inertia operation; That such situation will occur; Be said threshold speed change curve about actual vehicle speed owing to the estimation to the mistake of actual speed departs from actual vehicle speed, thereby enlarge corresponding spacing through the amount aspect between the speed of a motor vehicle of the given in advance present threshold value of threshold speed change curve and reality.For not along with the inertia operation of CD-ROM drive motor 4 continue carry out and that obtain expanding and more insensitive thus monitoring range, meaningfully, when too big, reinitialize the threshold speed change curve with respect to the spacing of actual speed.That is to say, in the following step S8 of step S6 and then (selecting: be), can check in another embodiment that the actual speed of a motor vehicle is whether than through more than the little specific numerical value of the given in advance speed of said threshold speed change curve.If this situation (selecting: be), that just jumps back to step S4 and on the basis of the present speed of a motor vehicle that exists now, tries to achieve the threshold speed change curve again.Actual speed and through the difference between the given in advance speed of said threshold speed change curve such as not should greater than be in 1.5 and 3km/h between value 2km/h especially.Otherwise can use step S9 to continue this method.
Can be updated periodically said threshold speed change curve in addition.The corresponding minimum deceleration of braking deceleration such as the self-propelled vehicle 1 that is guaranteed with in part brake activation device and additional charge farthest time of can be in step S9 having relatively high expectations when the brake activation device extraly.Enlarge the deceleration (negative time gradient) that is the basis with said threshold speed change curve according to lock torque for this reason and go out to send said threshold speed change curve is upgraded from the threshold value of said threshold speed change curve.
Have in addition and necessary be, consider sideways inclined degree information, be used for adjusting said threshold speed change curve according to the sideways inclined degree because the speed of a motor vehicle especially the variation of the speed of a motor vehicle mainly receive the influence of sideways inclined degree.When running into descending, occurring is not significantly the speed rising that itself produces through CD-ROM drive motor 4.In order can therefore to be necessary in said threshold speed change curve, to consider the sideways inclined degree continuously in the scheme of inertia realization speed monitoring in service.Said sideways inclined degree can be used as the function that the function of self-propelled vehicle acceleration/accel and longitudinal acceleration is derived and come out and offer other in engine controll unit 3.Said longitudinal acceleration generally exists in the self-propelled vehicle that is equipped with the ESP system, thereby the calculating of sideways inclined degree is more common present some functions in engine controll unit 3.Basically can will speed up power or deceleration force and distribute to said sideways inclined degree, the variation of the gradient that the sideways inclined degree causes slowing down, this variation is used to calculate said threshold speed change curve.Especially can stipulate, said threshold speed change curve periodically perhaps is complementary with regular time intervals and present sideways inclined degree.
Can be through the sine of sideways inclined degree and the 9.81m/s that before asking for said threshold speed change curve, is added in the self-propelled vehicle deceleration
2The mode that multiplies each other of acceleration due to gravity consider the sideways inclined degree.
Claims (9)
1. be used for method that the defective of the drive system of self-propelled vehicle (1) is monitored, this method has following steps:
-to confirm whether (S1) self-propelled vehicle (1) is in inertia in service, and the actuating device of self-propelled vehicle when inertia moves (1) should not provide drive torque;
If-confirm said inertia operation, then on the basis of the present speed of a motor vehicle, try to achieve (S2) temporal threshold speed change curve;
If-the present speed of a motor vehicle surpasses through the given in advance threshold value of said threshold speed change curve, then confirm (S5) defective in the process that exists said inertia operation.
2. by the described method of claim 1; Wherein try to achieve said threshold speed change curve according to the given in advance deceleration of self-propelled vehicle (1) on straight highway section, the influential friction drag of motion to self-propelled vehicle (1) is considered in wherein said given in advance deceleration.
3. by claim 1 or 2 described methods, wherein come said threshold speed change curve is upgraded according to the sideways inclined degree.
4. by each described method in the claim 1 to 3, on the basis of the present speed of a motor vehicle, try to achieve said threshold speed change curve when wherein the difference between the present threshold value given in advance through said threshold speed change curve and the current speed of a motor vehicle is above given in advance difference again.
5. by each described method in the claim 1 to 4, wherein try to achieve said threshold speed change curve according to the given in advance braking deceleration of self-propelled vehicle (1).
6. by each described method in the claim 1 to 5, if wherein do not handle acceleration pedal (5), all un-activation of moment claimed apparatus and idle un-activation, that just can confirm that inertia moves.
7. control monitor unit (2) is used for the defective of the drive system of self-propelled vehicle (1) is monitored, wherein this control monitor unit (2) structure:
-to be used for confirming whether self-propelled vehicle (1) is in inertia in service, and the actuating device of self-propelled vehicle should not provide drive torque when inertia moves;
-be used for when confirming said inertia operation, on the basis of the present speed of a motor vehicle, trying to achieve temporal threshold speed change curve;
-be used for when the speed of a motor vehicle surpasses through the given in advance threshold value of said threshold speed change curve, confirming defective in the process that has the operation of said inertia.
8. be used for the drive system of self-propelled vehicle, comprise:
-be used for the CD-ROM drive motor (4) of driving machine motor-car;
-be used for the engine controll unit (3) of controlling and driving motor;
-by the described monitoring unit of claim 7 (2).
9. computer program comprises program code, and this program code is implemented when it is carried out on data processing unit by each described method in the claim 1 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010062884.0 | 2010-12-13 | ||
| DE102010062884A DE102010062884A1 (en) | 2010-12-13 | 2010-12-13 | Method for monitoring e.g. diesel engine of motor car on engine control errors, involves determining error when momentary vehicle speed present during overrun condition exceeds value, which is predetermined by threshold value characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102529968A true CN102529968A (en) | 2012-07-04 |
| CN102529968B CN102529968B (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110411071.7A Active CN102529968B (en) | 2010-12-13 | 2011-12-12 | The method and apparatus that the driving means of the drive system of motor vehicles is monitored |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102529968B (en) |
| DE (1) | DE102010062884A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442393A (en) * | 2013-09-16 | 2015-03-25 | 罗伯特·博世有限公司 | Method and device for monitoring a drive of a motor vehicle |
| CN105511850A (en) * | 2014-08-01 | 2016-04-20 | 罗伯特·博世有限公司 | Screwing and/or riveting system and method for monitoring screwing and/or riveting system |
| CN113945213A (en) * | 2021-09-22 | 2022-01-18 | 北京连山科技股份有限公司 | Prediction correction method based on inertia combined navigation data |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016221285B3 (en) | 2016-10-28 | 2018-05-03 | Robert Bosch Gmbh | Method for monitoring the thrust of an internal combustion engine drive in a motor vehicle |
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| CN104442393A (en) * | 2013-09-16 | 2015-03-25 | 罗伯特·博世有限公司 | Method and device for monitoring a drive of a motor vehicle |
| CN104442393B (en) * | 2013-09-16 | 2018-10-16 | 罗伯特·博世有限公司 | The method and apparatus being monitored for the driver to motor vehicle |
| CN105511850A (en) * | 2014-08-01 | 2016-04-20 | 罗伯特·博世有限公司 | Screwing and/or riveting system and method for monitoring screwing and/or riveting system |
| CN113945213A (en) * | 2021-09-22 | 2022-01-18 | 北京连山科技股份有限公司 | Prediction correction method based on inertia combined navigation data |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010062884A1 (en) | 2012-06-14 |
| CN102529968B (en) | 2016-12-21 |
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