CN101994824A - A method of indicating a neutral offset error of a transmission gear selector - Google Patents
A method of indicating a neutral offset error of a transmission gear selector Download PDFInfo
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- CN101994824A CN101994824A CN2010102487447A CN201010248744A CN101994824A CN 101994824 A CN101994824 A CN 101994824A CN 2010102487447 A CN2010102487447 A CN 2010102487447A CN 201010248744 A CN201010248744 A CN 201010248744A CN 101994824 A CN101994824 A CN 101994824A
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- speed changer
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- 230000007935 neutral effect Effects 0.000 title claims abstract description 267
- 230000005540 biological transmission Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 43
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- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
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- 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
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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
- 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
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
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- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6823—Sensing neutral state of the transmission
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Control Of Transmission Device (AREA)
Abstract
The present invention provides a vehicle 10 having an engine 12 that provides an input to a transmission 14. A gear selector 16 for the transmission gear has a corresponding nominal position for each of the selected gears. Independently from the gear selector position it is determined whether the transmission 14 is in an odd numbered gear or an even numbered gear; the position of the gear selector 16 is sensed when this determination is made. A neutral position of the gear selector 16 for the neutral gear is calculated using the sensed position of the gear selector 16. A neutral gear offset position is determined from the known neutral offset and the nominal position for the neutral gear. The neutral gear offset position is compared to the calculated neutral position, and a correction is indicated for the known neutral offset when the neutral gear offset position varies from the calculated neutral position by more than a predetermined amount.
Description
Technical field
The present invention relates to a kind of method of indicating the gear biased error in the transmission for vehicles.
Background technique
In a lot of vehicles, particularly those have in the vehicle of manual transmission, know importantly what speed changer be in neutral position constantly.Multiple Vehicular system can be dependent on the pin-point reading that speed changer is in the neutral gear gear.For example, motor stops start-up routine and can for example move under speed changer is in the particular vehicle situation of neutral gear gear.Motor stops start-up routine and helps fuel saving and reduce discharging by automatic shutting engine down when determining no longer to need motor.In one example, motor can stop and the vehicle operators release the clutch pedal automatically when speed changer is in the neutral gear gear, in the time of for example may occurring in stop light and light or during other extra parking situations.Then, when the operator depresses clutch pedal, i.e. disconnecting clutch, and from the neutral gear gear to forward gears or the reverse gear time, motor can be started automatically.
In order to make the appropriate running of system (for example motor stops start-up system), importantly vehicle control system receives the accurate information that whether is in the neutral gear gear about speed changer.A kind of for this reason mode provides sensor, and described sensor determines when gear selector enters the lock pin about concrete gear.In actual applications, each odd gear of speed changer can have single lock pin position, and each even number gear can have single lock pin position, and neutral gear has its oneself lock pin position.Under these circumstances, sensor can determine whether speed changer is in even number gear, odd gear or neutral gear by the position of detecting the concrete relatively lock pin of gear selector.Because the extremely complicated system that speed changer is made up of a lot of parts, each parts all has the manufacturing tolerances about itself, so when gear selector was in the neutral gear lock pin of central position, the physical location of gear selector may be different from the nominal position of calculating based on the standard engineering size.The accumulative total analysis of the global tolerance of speed changer allows to calculate neutral gear zone accurately, i.e. the zone of gear selector, and wherein speed changer determines to be in neutral gear.Yet, if the neutral gear zone of this calculating is wide, so may be necessary provide from the biasing of nominal position zone with accurate location Calculation.
Above-mentioned bias type can be calculated based on the physical unit that uses in speed changer for given speed changer, and is determined at the end near the manufacturing process production line usually.Therefore, for given speed changer, known biasing will be calculated and will be programmed in the vehicle control system of the vehicle that speed changer is installed.In these cases, the sensor reading of indication gear selector position can be adjusted automatically by for example vehicle control system of power transmission control module (PCM), thereby makes the position of the accuracy of reading reflection gear selector of sensor.
Though the application of biasing as described above can provide accurate information in the length of life of vehicle, possible is speed changer, gear selector connecting rod, position transducer or these be combined in during the vehicle service life in some time will change.When this happens, more than the biasing of explanation may need new parts are calculated once more.If do not carry out new calculating or it is inaccurate, this can cause the inaccurate reading about Transmission gear so.Therefore, exist determining when the speed changer biasing needs the vehicle that is corrected and the needs of method.
Summary of the invention
According to a first aspect of the invention, the method that provides definite hope when known neutral gear biasing in the vehicle to be proofreaied and correct, described vehicle comprises the motor that input is provided to speed changer, described speed changer has at least one numbering gear and neutral gear gear, described vehicle further comprises the gear selector that is used for the selective transmission gear, described gear selector has the corresponding nominal position of the gear of each selection, described method comprises when one the change of first offset position in the neutral position of following parameter and calculating surpasses prearranging quatity, wish the correction of indication for described known neutral gear biasing, described first offset position based on a plurality of gears in the described known neutral gear biasing of nominal position of gear selector of a concrete gear, the neutral position of described parameter and calculating is:
Based on parameter to the sense position of the gear selector of a concrete gear; And
To the neutral position of the calculating of the gear selector of neutral gear gear, it is based on the sense position to the gear selector of a concrete gear.
For convenience, term " neutral gear gear " refers to the neutral position of speed changer, even under the situation that vehicle derailing meshes when speed changer is in neutral gear.
Speed changer can have at least one odd gear and at least one even number gear, described method comprises that the neutral position that calculates from gear selector when described first offset position as the offset position of the gear selector of neutral gear gear changes when surpassing prearranging quatity, wish the correction of indication to known neutral gear biasing, the neutral position that described gear selector calculates based on:
(i) when being independent of the gear selector position and determining that speed changer is in odd gear, at least one sense position of gear selector, and
(ii) when being independent of the gear selector position and determining that speed changer is in the even number gear, at least one sense position of gear selector.
The neutral position of the gear selector that calculates can be when being independent of the gear selector position and determining that speed changer is in odd gear based at least two sense position of gear selector, and when being independent of the gear selector position and determining that speed changer is in the even number gear based at least two sense position of gear selector, the neutral position of the gear selector of calculating based on:
(i) for the statistical parameter of the sense position of the gear selector of each odd gear position of determining;
(ii) for the statistical parameter of the sense position of the gear selector of each even number gear positions of determining.
The neutral position of the gear selector that calculates can based on as the algorithm of giving a definition:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe the neutral position that calculates, S
OddBe the sense position of gear selector when determining that speed changer is in odd gear, S
EvenBe the sense position of gear selector when determining that speed changer is in the even number gear, X is the known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear, and
Y is the known relation between the gear selector position of the gear selector position of even number gear and neutral gear gear.
The neutral position of the gear selector that calculates can be based on algorithm, known relation between the gear selector position of the known relation between the gear selector position of this algorithm application odd gear and the gear selector position of neutral gear gear and the gear selector position of even number gear and neutral gear gear, described relation is equal to, and described algorithm is restricted to:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe the neutral position that calculates, S
OddBe the sense position of gear selector when determining that speed changer is in odd gear, and S
EvenIt is the sense position of gear selector when determining that speed changer is in the even number gear.
Described method can comprise when described first offset position when the change of the sense position of the gear selector of non-neutral gear gear surpasses prearranging quatity, wish the correction of indication for known neutral gear biasing, described first offset position based on the known neutral gear biasing of the nominal position of the gear selector of non-neutral gear gear.
Suitably, described prearranging quatity is to allow the sense position of gear selector to indicate this speed changer to be in the minimum position difference of this particular gears when speed changer is not in particular gears.
Preferably, be independent of the gear selector position and determine that speed changer is in odd gear or the step of even number gear rotating speed and the car speed based on motor.
According to a second aspect of the invention, provide and be used for determining the hope method when known neutral gear biasing is proofreaied and correct to vehicle, described vehicle comprises the motor that input is provided to speed changer, described speed changer has at least one odd gear, at least one even number gear and neutral gear gear, described vehicle further comprises the gear selector that is used for the selective transmission gear, described gear selector has the corresponding nominal position of the gear of each selection, and described method comprises:
Be independent of the gear selector position and determine that speed changer is to be in odd gear or even number gear;
When definite speed changer is in odd gear or even number gear, the position of sensing gear selector;
The sense position of use gear selector is calculated the neutral position of the gear selector of neutral gear gear;
Known neutral gear biasing and nominal position by the neutral gear gear are determined neutral gear gear offset position;
The neutral position that compares neutral gear gear offset position and calculating; And
When neutral gear gear offset position when the change of the neutral position that calculates surpasses prearranging quatity, wish the correction of indication to known neutral gear biasing.
Preferably, be independent of the gear selector position and determine that speed changer is in odd gear or the step of even number gear is repetition, thereby determined that at least speed changer is to be in odd gear and at least speed changer is to be in the even number gear, and the step of sensing gear selector position is repetition, thereby the position of gear selector by the position of the gear selector once and when determining that speed changer is in the even number gear of sensing at least by sensing at least once when determining that speed changer is in odd gear, and the step of the neutral position of the gear selector of calculating neutral gear gear has been utilized the sense position of the gear selector in odd gear and the sense position of the gear selector in the even number gear.
Relation between the gear selector position of odd gear and the gear selector position of neutral gear gear can be identical with the relation between the gear selector position of the gear selector position of even number gear and neutral gear gear, and the step of calculating neutral position can comprise and carries out following formula:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe second parameter, S
OddBe the position of the gear selector of sensing when determining that speed changer is in odd gear, and S
EvenIt is the position of the gear selector of sensing when determining that speed changer is in the even number gear.
Preferably, known relationship is present between the gear selector position of the gear selector position of odd gear and neutral gear gear, and another known relationship may reside between the gear selector position of the gear selector position of even number gear and neutral gear gear, and the step of neutral position of calculating the gear selector of neutral gear gear has further been utilized described known relation.
The step of calculating neutral position can comprise carries out following formula:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe second parameter,
S
OddBe the sense position of gear selector when determining that speed changer is in odd gear, S
EvenIt is the sense position of gear selector when determining that speed changer is in the even number gear, X is the known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear, and Y is the known relation between the gear selector position of the gear selector position of even number gear and neutral gear gear.
Preferably, prearranging quatity is to allow the sense position of gear selector to indicate this speed changer to be in the minimum position difference of this particular gears when speed changer is not in particular gears.
Suitably, be independent of the gear selector position and determine that speed changer is in odd gear or the step of even number gear comprises:
Determine the rotating speed of motor;
Determine the speed of vehicle; And
Known relation between the rotating speed of application engine, the speed of vehicle and the Transmission gear.
According to a third aspect of the invention we, provide to comprise the vehicle that when is used for determine wishing system that known neutral gear biasing is proofreaied and correct, described vehicle comprises motor; Receive input and have the speed changer that at least one numbers gear and neutral gear gear from motor; The gear selector that is used for the selective transmission gear, described gear selector have the corresponding nominal position of the gear of each selection; The sensor that is used for the position of sensing gear selector; And the control system that comprises at least one controller, described control system is configured to when one the change of first offset position in following parameter and position surpasses prearranging quatity, wish the correction of indication to known neutral gear biasing, described first offset position is based on the known neutral gear biasing to the nominal position of the gear selector of a concrete gear, and described parameter and position are:
(i) based on parameter to the sense position of the gear selector of a concrete gear; And
(ii) to the neutral position of the calculating of the gear selector of neutral gear gear, it is based on the sense position to the gear selector of a concrete gear.
Preferably, described control system be configured to when described first offset position when the change of the sense position of the gear selector of non-neutral gear gear surpasses prearranging quatity, wish the correction of indication to known neutral gear biasing, wherein said first offset position is based on the known neutral gear biasing to the nominal position of the gear selector of non-neutral gear gear.
Suitably, speed changer has at least one odd gear and at least one even number gear, and described method comprises when the change of the neutral position that calculates from gear selector as described first offset position of the offset position of the gear selector of neutral gear gear surpasses prearranging quatity, wish the correction of indication to known neutral gear biasing, the neutral position that described gear selector calculates based on:
(i) sense position of at least one gear selector when being independent of the gear selector position and determining that speed changer is in odd gear, and
The (ii) sense position of at least one gear selector when being independent of the gear selector position and determining that speed changer is in the even number gear.
Preferably, the neutral position of the gear selector of calculating based on by as the algorithm of giving a definition:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe the neutral position that calculates,
S
OddBe the sense position of gear selector when determining that speed changer is in odd gear, S
EvenIt is the sense position of gear selector when determining that speed changer is in the even number gear, X is the known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear, and Y is the known relation between the gear selector position of the gear selector position of even number gear and neutral gear gear.
The neutral position of the gear selector that calculates can be based on algorithm, this algorithm application the known relation between the gear selector position of the gear selector position of known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear and even number gear and neutral gear gear, described relation is equal to, and described algorithm is restricted to:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe the neutral position that calculates, S
OddBe the sense position of gear selector when determining that speed changer is in odd gear, and S
EvenIt is the sense position of gear selector when determining that speed changer is in the even number gear.
In some embodiments of the invention, control system will be used the known neutral gear biasing of the nominal position of neutral gear gear, and just, above-mentioned " a concrete gear " is the neutral gear gear in this case.In this case, first offset position is the value that sensor should be read when the center of gear selector at the neutral position lock pin.Then, use the relation between the speed of the rotating speed of motor for example and vehicle, can be independent of the gear selector position and determine that speed changer is in odd gear or even number gear.When having made this judgement, sensor provides signal to control system then.Because in given arbitrarily speed changer, there is known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear and even number gear and neutral gear gear, so the central position that the sense position of the odd gear of above explanation or even number gear can be used to calculate the neutral gear gear.
To compare between the neutral position center of calculating and " first offset position " afterwards, in the case, described first offset position is the offset position of the gear selector of neutral gear gear.If but the value that calculating relatively is shown of these two values outside the allowable tolerance of the offset position of the gear selector of neutral gear gear, promptly outside described first offset position, is then indicated the correction to known neutral gear biasing.Control system, PCM for example, can indicate the correction of hope to the instrument panel of vehicle operators by signal is provided, for example by the sense of hearing, vision or haptic signal or its some combinations, perhaps described indication can have the form that changes special characteristic or function, and it is unavailable for example to make automatic engine stop to start function.
In other embodiments of the invention, can determine the position of gear selector to odd gear and even number gear.In addition, a plurality of readings and the statistical parameter that can obtain for each odd gear position and each even number gear positions can be determined, as average, intermediate value or the like.As mentioned above, use these values to provide extra degree of accuracy in the known relation between the position of the position of odd gear and neutral gear gear and even number gear and neutral gear gear to the calculating at the center of the neutral position of gear selector.
Embodiments of the invention also can be applied to known neutral gear biasing the position of the gear selector of odd gear or even number gear.In these embodiments for example, described first offset position is the offset position of odd gear or even number gear rather than the offset position of neutral gear gear now.As an example, known neutral gear biasing can directly be applied to the position of the gear selector of a gear in the odd gear.When being independent of gear selector and determining whether speed changer is in odd gear or even number gear, selected odd gear.Then, when when making the signal of the described position that receives the indication gear selector when judging, the offset position of odd gear, promptly described first offset position can be directly and the comparison of the sense position of the gear selector of odd gear.For example these embodiments have utilized the known relation between the gear selector position of odd gear and neutral gear gear, and directly the biasing of known neutral gear is applied to odd gear, has reduced the calculating that relates to thus and be programmed into the complexity of the algorithm in the control system.Certainly, can carry out the same or analogous step that the known neutral gear of application biases to the even number gear.
Embodiments of the invention also comprise the method for determining that when expectation proofreaies and correct known neutral gear biasing in the vehicle.The step of this method comprises that being independent of the gear selector position determines that speed changer is to be in odd gear or even number gear, and when definite gear selector position is in odd gear or even number gear, the position of sensing gear selector.Extra step comprises that the sense position of using gear selector calculates the neutral position of the gear selector of neutral gear gear.As mentioned above, this calculating can be used the single sense position of odd gear or even number gear, can use the combination of the sense position of odd gear and even number gear, perhaps can use one in odd gear or even number gear or a plurality of readings of the two.Determine by the known neutral gear biasing and the nominal position of neutral gear gear after the neutral gear gear offset position.Compare with the neutral position that calculates after the described neutral gear gear offset position, and when neutral gear gear offset position when the change of the neutral position that calculates surpasses prearranging quatity, the correction of known neutral gear being setovered as the indication of hope ground.This prearranging quatity can be based on for example tolerance stack of concrete speed changer.
Description of drawings
To the present invention be described with reference to the drawings by way of example now, wherein:
Fig. 1 is the explanatory view according to the vehicle of the embodiment of the invention;
Fig. 2 is the explanatory view with speed changer part of zero neutral gear biasing; And
Fig. 3 is the explanatory view with speed changer part of non-zero neutral gear biasing.
Embodiment
Fig. 1 is the explanatory view of vehicle 10 according to an embodiment of the invention.Vehicle 10 comprises motor 12 and receives the speed changer 14 of input from motor 12.Speed changer 14 has six forward gearss and reverse gear in a non-restrictive example.Gear selector 16 is used with the selective transmission gear by vehicle operators, and shown in direction arrow 18,20, gear selector 16 on all directions mobile link 22 with the selective transmission gear.When connecting rod 22 was moved by gear selector 16, sensor 24 detected the motion of magnet 26.Sensor 24 sends a signal to vehicle control system, and this vehicle control system is PCM 28 in the embodiment shown in fig. 1.Though it is shown as single controller, for example the control system of the vehicle of vehicle 10 can comprise software controller, hardware control or its some combinations.Described control system by situation about forming more than a controller under, controller can for example pass through controller local area network (CAN) and intercom mutually.
Referring to figs. 2 and 3, indicative icon the speed changer of two different editions, for example speed changer 14.Particularly, in Fig. 2, speed changer 14 ' is illustrated as has zero neutral gear biasing.For example, neutral gear lock pin zone 31 is in the center between sensor reading value C and the D.As shown in FIG. 2, the center approximate horizontal in neutral gear lock pin zone 31 ground is positioned at the center of schematic speed changer 14 ', is the circuit 30 that gear selector that diagram is detected by sensor 24 moves on it.Therefore, in speed changer 14 ', the practical center position in neutral gear lock pin zone is generally consistent with the center that gear selector moves.
For every group of odd gear, even number gear and neutral gear gear, Fig. 2 also illustrates the explanatory view of lock pin profile line.The physical features of this profile line 32 approximate connecting rod 22 parts, wherein each gear selects to have the lock pin position that falls into during to that gear when speed changer 14 ' gear shift.Particularly, each odd gear 1,3,5 will fall into lock pin 34, and lock pin 34 is between sensor reading value A and B.Similarly, connecting rod 22 will fall into the lock pin 36 of each even number gear, and it is between sensor reading value E and F.As mentioned above, neutral gear lock pin zone generally is in the center between sensor reading value C and the D, and when the neutral gear gear is selected, connecting rod 22 will fall into lock pin 38.
What illustrate equally in Fig. 2 is the diagram of the notion of known relation between known location relation between odd gear lock pin zone 33 and the neutral gear lock pin zone 31 and even number gear lock pin zone 35 and the neutral gear lock pin zone 31.Vehicle of the present invention and method are utilized this relation to wish to proofread and correct with box lunch indication are provided when known neutral gear is setovered.For example, if vehicle 10 in use and speed changer 14 ' replaced, so new speed changer may not have zero neutral gear and setover.Under these circumstances, what may wish is to know that biasing need be recomputated, and may need to make that or unavailable the biasing up to neutral gear of more a plurality of Vehicular system to be updated.
Fig. 3 illustrates another speed changer 14 with the biasing of non-zero neutral gear ".As the speed changer 14 ' from Fig. 2 and Fig. 3 and 14 " comparison in distinguish ground easily, each lock pin zone from its speed changer 14 ' previous position be converted to speed changer 14 " the left side.In fact, as shown in Figure 3, each lock pin zone is by biasing (c) conversion by arrow 40 explanations.If speed changer 14 " do not have the neutral gear biasing, then dotted line 42 is represented the nominal center in neutral gear lock pin zone.Fig. 3 shows also that the relation between these two zones keeps identical in relation and the speed changer 14 ' shown in figure 2 between odd gear lock pin zone 33 ' and neutral gear lock pin zone 31 ' (being depicted as " X ").Similarly, the relation between even number gear lock pin zone 35 ' and neutral gear lock pin zone 31 ' (being depicted as " Y ") is also identical with relation in the speed changer 14 '.
In some embodiments of the invention, control system, PCM 28 as illustrated in fig. 1 can carry out the algorithm of implementing following method.In one example, known neutral gear biasing shown in Figure 3 (c) can be applicable to the nominal position of the gear selector 16 of neutral gear gear.This is illustrated among Fig. 3, and wherein arrow 40 begins in the nominal position by dotted line 42 indications, and described Offset (c) is changed at the center in neutral gear lock pin zone left.As shown in Figure 3, relation between odd gear lock pin zone 33 ' and the neutral gear lock pin zone 31 ', tie up to when comparing with the speed changer 14 ' shown in Fig. 2 with pass between even number gear lock pin zone 35 ' and the neutral gear lock pin zone 31 ', remain unchanged, described relation has zero neutral gear biasing.Though be illustrated as linear measurement at this relative position of it should be noted that neutral gear biasing (c) and neutral gear lock pin zone, they can be angled equally.In fact, can use any system of coordinates of the relative position in effective explanation neutral gear biasing and lock pin zone.
Turn back to the method for above explanation, the neutral gear gear offset position of being determined by the known neutral gear biasing and the nominal position of neutral gear gear is illustrated as Sn
Offset, and can usually be called " first offset position ".Another step of described method is independent of the position of gear selector 16 and determines speed changer 14 " be in odd gear or even number gear.Relation between the rotating speed that this can be by using motor for example and the speed of vehicle is finished.Tachometer can provide the rotating speed of motor to vehicle control system, and for example PCM 28.The speed of vehicle can be determined that effective and efficient manner is to use the vehicle-wheel speed sensor about anti-lock braking system though make this definite convenience by any efficient apparatus.Because speed and speed changer 14 at vehicle " output speed between have known relation, and because motor 12 provide input to speed changer 14 ", so can determine Transmission gear.
When having determined Transmission gear, the position of gear selector 16 is by sensor 24 sensings, and sensor 24 sends a signal to PCM 28; This sense position can usually be called as " first parameter ".Because between odd and even number gear lock pin zone and neutral gear lock pin zone, have known relation,, calculates the neutral position of the gear selector of neutral gear gear so can using by the position of the gear selector of sensor 24 sensings of above explanation.For example, determine speed changers 14 if be independent of gear selector 16 " be to be in odd gear, this in Fig. 3 by sensor reading S
OddIndication, the then calculating (S of the neutral position of the gear selector of neutral gear gear
Calc) can relate to simple subtraction: S
Calc=S
Odd-X.Neutral position (the S of the gear selector that calculates
Calc, it generally can be called as " second parameter ") can with Sn
OffsetValue compare.If S
CalcFrom Sn
OffsetChange surpass prearranging quatity, then described method can provide hope for speed changer 14 to vehicle operators " in the indication of correction of neutral gear biasing.Except this indication is provided, the control system of vehicle 10, for example PCM 28, can start, forbid or revise specific function system in vehicle 10 according to preset program.For example, if determine to wish proofread and correct speed changer 14 " the neutral gear biasing, can to make automatic engine stop to start function unavailable for PCM 28 so, it can be stored in the PCM 28 equally.As mentioned above, PCM 28 can communicate by letter with one or more a plurality of other controllers, thereby influences the other system in the vehicle 10.
Because between the position in even number gear lock pin zone 35 ' and neutral gear gear lock pin zone 31 ', have known relation equally,, said method can make S so can comprising
CalcThe calculating of value increases the additional step of degree of accuracy.For example, speed changer 14 is determined in the position that is independent of gear selector 16 " be that the step that is in odd gear or even number gear can repeat always, up to definite speed changer 14 " at least once be in odd gear and speed changer 14 " at least once be in the even number gear.Then when definite speed changer is in odd gear, the position of gear selector 16 by sensor 24 sensings at least once and when definite speed changer was in the even number gear, the position of gear selector 16 by sensor 24 sensings at least once.In this example, the second parameter (S
Calc) can calculate according to following formula:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe second parameter,
S
OddBe the sense position of gear selector when determining that speed changer is in odd gear,
S
EvenBe the sense position of gear selector when determining that speed changer is in the even number gear,
X is the known relation between the gear selector position of the gear selector position of odd gear and neutral gear gear, and
Y is the known relation between the gear selector position of the gear selector position of even number gear and neutral gear gear.
Shown as above formula, S
CalcCan use relation (this position is closed to tie up among Fig. 3 and is designated as " X ") and the relation (being designated as " Y ") between even number gear lock pin zone 35 ' and the neutral gear lock pin zone 31 ' between odd gear lock pin zone 33 ' and the neutral gear lock pin zone 31 ' next definite.
In other embodiments of the invention, S
OddAnd S
EvenValue can be determined when being in odd gear repeatedly sensedly at speed changer, and be determined when being in the even number gear repeatedly sensed when speed changer.Then, statistical parameter is used to calculate the sense position of each the odd gear position determined and the gear selector 16 of each even number gear positions of determining.Described statistical parameter can be that the average of for example sensing value, the intermediate value or the described statistical parameter of sensing value can be meticulousr parameters, for example only is the average or the intermediate value of the partial data of collection, and wherein specific outlier is rejected.
Use the algorithm of " X " and " Y " relation further to be simplified in some cases.For example, in some speed changers, the position relation between odd gear lock pin zone and the neutral gear lock pin zone concerns it is identical with the position between even number gear lock pin zone and the neutral gear lock pin zone.The term that use provides in Fig. 2 and Fig. 3 this means X=Y in this case.In this case, above-mentioned formula can be by following simplification:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe second parameter,
S
OddBe the sense position of gear selector when determining that speed changer is in odd gear,
S
EvenIt is the sense position of gear selector when determining that speed changer is in the even number gear.
Employed formula no matter, S
CalcValue all can be directly and Sn
OffsetValue relatively, for example two values are subtracted each other.If the difference between definite this two value is greater than prearranging quatity, execution in step is wished the correction that the neutral gear of the speed changer of estimation is setovered with indication so.The prearranging quatity that uses can be determined by the tolerance stack of various transmission components.Just, prearranging quatity can be to be higher than S
CalcAnd Sn
OffsetBetween the value of difference, it is possible that described difference has been indicated the false readings of Transmission gear.The position and the relation is under the situation of linear measurement, this value can be the millimeter or centimetre.Alternately, when the position was indicated by angle, predetermined value can be to be higher than S
CalcAnd Sn
OffsetBetween the concrete angle of difference, described difference has been indicated the neutral gear biasing of wishing to proofread and correct speed changer.
In some embodiments of the invention, above-mentioned algorithm and method can be passed through aforesaid S
CalcDetermine and use neutral gear bias to a concrete gear of non-neutral gear gear and further simplified.In the above-described embodiments, known neutral gear biasing is applied to the nominal position of the gear selector 16 of neutral gear gear.This will produce the value Sn according to diagram among Fig. 3 and explanation
OffsetThis generally is called as first offset position.
Yet first offset position also may be restricted to the offset position of the gear selector 16 of non-neutral gear gear.For example, what replace to use that known neutral gear biases to the neutral gear gear is, this known neutral gear biasing can be applied in the odd gear or the even number gear.In the case, still being independent of the gear selector position, to make speed changer be the judgement that is in odd gear or even number gear.When definite speed changer is in odd gear or even number gear, the position of sensing gear selector, and this sense position (described first parameter) can directly be compared with described first offset position, i.e. definite value by the nominal position of the gear selector that known neutral gear biasing is applied to non-neutral gear gear.If a gear in the odd gear is selected as using the concrete gear of known neutral gear biasing, then can use following formula:
S
Odd_offset=S
Odd_nominal-c, wherein
S
Odd_offsetBe the offset position of the gear selector 16 of odd gear, be also called " first offset position ",
S
Odd_nominalBe the nominal position of the gear selector 16 of odd gear, and
C is known neutral gear biasing.
This is similar with method with above-mentioned algorithm, except biasing " c " is applied to odd gear rather than neutral gear gear.Then, determine that when being independent of the gear selector position speed changer is to be in odd gear, and during the position of sensing gear selector, this sense position (S
Odd) must not carry out calculating to determine S
CalcSituation under directly and S
Odd_offsetCompare.The algorithm and the method that comprise these steps are uncomplicated and can implement quickly than the above-mentioned embodiment of the position of neutral gear gear that utilizes.Though above example has directly been selected odd gear, it should be understood that identical principle can be applied to the even number gear of speed changer.
Claims (20)
1. method that is used for upgrading the neutral gear biasing of vehicle, described vehicle comprises the motor that input is provided to speed changer, described speed changer has at least one numbering gear and neutral gear gear, described vehicle further comprises the gear selector that is used to select described Transmission gear, described gear selector has the corresponding nominal position of the gear of each selection, described method comprises when one the change of first offset position in the neutral position of following parameter and calculating surpasses prearranging quatity, proofread and correct current neutral gear biasing, described first offset position based on a plurality of gears in the described current neutral gear biasing of nominal position of gear selector of a concrete gear, the neutral position of described parameter and calculating is:
Parameter, it is based on the sense position of the described gear selector of a concrete gear in described a plurality of gears; And
The neutral position of the calculating of the described gear selector of described neutral gear gear, the neutral position of this calculating is based on the sense position of the described gear selector of a concrete gear in described a plurality of gears.
2. the method for claim 1, wherein said speed changer has at least one odd gear and at least one even number gear, and described method comprises when described first offset position, it is the offset position of the gear selector of described neutral gear gear, when the change of the neutral position of the described calculating of described gear selector surpasses prearranging quatity, correction neutral gear biasing, the neutral position of described calculating based on:
(i) at least one sense position of described gear selector when being independent of described gear selector position and determining that described speed changer is in odd gear, and
(ii) at least one sense position of described gear selector when being independent of described gear selector position and determining that described speed changer is in the even number gear.
3. method as claimed in claim 2, the neutral position of the described calculating of wherein said gear selector is based at least two sense position of the described gear selector when being independent of described gear selector position and determining that described speed changer is in odd gear, and based at least two sense position of the described gear selector when being independent of described gear selector position and determining that described speed changer is in the even number gear, the neutral position of the described calculating of described gear selector based on:
(i) for each odd gear position of determining, the statistical parameter of the sense position of described gear selector; And
(ii) for each even number gear positions of determining, the statistical parameter of the sense position of described gear selector.
4. method as claimed in claim 2, the neutral position of the calculating of wherein said gear selector based on as the algorithm of giving a definition:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe the neutral position of described calculating,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear, S
EvenBe the sense position of described gear selector when determining that described speed changer is in the even number gear, X is the known relation between the gear selector position of the described gear selector position of odd gear and described neutral gear gear, and
Y is the known relation between the gear selector position of the described gear selector position of even number gear and described neutral gear gear.
5. method as claimed in claim 2, the neutral position of the calculating of wherein said gear selector is based on following algorithm, known relation between the gear selector position of the known relation between the described gear selector position of described algorithm application odd gear and the gear selector position of described neutral gear gear and the described gear selector position of even number gear and described neutral gear gear, described relation is equal to, and described algorithm is defined as:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe the neutral position of described calculating,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear, and
S
EvenIt is the sense position of described gear selector when determining that described speed changer is in the even number gear.
6. the method for claim 1, wherein said method comprise when described first offset position when the change of the sense position of the described gear selector of non-neutral gear gear surpasses prearranging quatity, proofread and correct the biasing of current neutral gear, described first offset position based on the described current neutral gear biasing of the nominal position of the gear selector of described non-neutral gear gear.
7. the method for claim 1, wherein said prearranging quatity are to allow the sense position of described gear selector to indicate this speed changer to be in the minimum position difference of this particular gears when described speed changer is not in particular gears.
8. method as claimed in claim 2 wherein is independent of described gear selector position and determines that described speed changer is to be in the speed of the step of odd gear or even number gear based on the rotating speed and the described vehicle of described motor.
9. method that is used for upgrading the neutral gear biasing of vehicle, described vehicle comprises the motor that input is provided to speed changer, described speed changer has at least one odd gear, at least one even number gear and neutral gear gear, described vehicle further comprises the gear selector of the gear that is used to select described speed changer, described gear selector has the corresponding nominal position of the gear of each selection, and described method comprises:
Be independent of described gear selector position and determine that described speed changer is to be in odd gear or even number gear;
When definite described speed changer is in described odd gear or described even number gear, the position of the described gear selector of sensing;
Use the sense position of described gear selector to calculate the neutral position of the gear selector of described neutral gear gear;
Current neutral gear biasing and nominal position by described neutral gear gear are determined neutral gear gear offset position;
The neutral position of more described neutral gear gear offset position and described calculating; And
When described neutral gear gear offset position when the change of the neutral position of described calculating surpasses prearranging quatity, proofread and correct described current neutral gear biasing.
10. method as claimed in claim 9 further comprises:
Repeat to be independent of described gear selector position and determine that described speed changer is the step that is in odd gear or even number gear, thereby determine that described speed changer at least once is in odd gear and described speed changer at least once is in the even number gear, and
The step of the position of the described gear selector of repeat sensing, thereby when definite described speed changer is in odd gear, the position of described gear selector is sensed at least once, and when definite described speed changer is in the even number gear, the position of described gear selector is sensed at least once, and the step of neutral position of wherein calculating the gear selector of described neutral gear gear has been utilized the sense position of the described gear selector in odd gear and the sense position of the described gear selector in the even number gear.
11. method as claimed in claim 10, wherein the relation between the described gear selector position of the described gear selector position of odd gear and neutral gear gear can be identical with the relation between the gear selector position of the described gear selector position of even number gear and described neutral gear gear, and the step of wherein calculating neutral position comprises and carries out following formula:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe second parameter,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear, and
S
EvenIt is the sense position of described gear selector when determining that described speed changer is in the even number gear.
12. method as claimed in claim 10, wherein known relationship exists between the gear selector position of the gear selector position of odd gear and neutral gear gear, and another known relationship exists between the gear selector position of the gear selector position of even number gear and neutral gear gear, and the step of neutral position of calculating the gear selector of neutral gear gear has further been utilized described known relation.
13. comprising, method as claimed in claim 12, the step of wherein calculating neutral position carry out following formula:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe second parameter,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear,
S
EvenBe the sense position of described gear selector when determining that described speed changer is in the even number gear,
X is the known relation between the gear selector position of the described gear selector position of odd gear and described neutral gear gear, and
Y is the known relation between the gear selector position of the described gear selector position of even number gear and described neutral gear gear.
14. method as claimed in claim 9, wherein said prearranging quatity are to allow the sense position of described gear selector to indicate this speed changer to be in the minimum position difference of this particular gears when described speed changer is not in particular gears.
15. method as claimed in claim 9 wherein is independent of described gear selector position and determines that described speed changer is that the step that is in odd gear or even number gear comprises:
Determine the rotating speed of described motor;
Determine the speed of described vehicle; And
Use the rotating speed of described motor, the speed of vehicle and the known relation between the described Transmission gear.
16. a vehicle that comprises the system that is used to upgrade the neutral gear biasing, described vehicle comprises motor; Receive input and have the speed changer that at least one numbers gear and neutral gear gear from described motor; Be used to select the gear selector of described Transmission gear, described gear selector has the corresponding nominal position of the gear of each selection; The sensor that is used for the position of the described gear selector of sensing; And the control system that comprises at least one controller, described control system is configured to:
When one the change of first offset position in the neutral position of following parameter and calculating surpasses prearranging quatity, proofread and correct current neutral gear biasing, described first offset position is based on the described current neutral gear biasing to the nominal position of the described gear selector of a concrete gear in a plurality of gears, and the neutral position of described parameter and calculating is:
(i) parameter, it is based on the sense position of the described gear selector of a concrete gear in described a plurality of gears; And
The neutral position of the calculating of the described gear selector of (ii) described neutral gear gear, the neutral position of this calculating is based on the sense position of the described gear selector of a concrete gear in described a plurality of gears.
17. vehicle as claimed in claim 16, wherein said control system be configured to when described first offset position when the change of the sense position of the described gear selector of non-neutral gear gear surpasses prearranging quatity, proofread and correct the biasing of current neutral gear, wherein said first offset position is based on the described current neutral gear biasing to the nominal position of the gear selector of described non-neutral gear gear.
18. vehicle as claimed in claim 16, wherein said speed changer has at least one odd gear and at least one even number gear, and described method comprises when described first offset position, the offset position of gear selector that is described neutral gear gear is when the change of the neutral position of the described calculating of described gear selector surpasses prearranging quatity, proofread and correct the biasing of current neutral gear, the neutral position of described calculating based on:
(i) at least one sense position of described gear selector when being independent of described gear selector position and determining that described speed changer is in odd gear; And
(ii) at least one sense position of described gear selector when being independent of described gear selector position and determining that described speed changer is in the even number gear.
19. vehicle as claimed in claim 18, the neutral position of the calculating of wherein said gear selector based on as the algorithm of giving a definition:
S
Calc=((S
Odd+ X)+(S
Even-Y))/2, wherein
S
CalcBe the neutral position of described calculating,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear,
S
EvenBe the sense position of described gear selector when determining that described speed changer is in the even number gear,
X is the known relation between the gear selector position of the described gear selector position of odd gear and described neutral gear gear, and
Y is the known relation between the gear selector position of the described gear selector position of even number gear and described neutral gear gear.
20. vehicle as claimed in claim 18, the neutral position of the calculating of wherein said gear selector is based on algorithm, known relation between the described gear selector position of this algorithm application odd gear and the gear selector position of described neutral gear gear, and based on the known relation between the gear selector position of the described gear selector position of even number gear and described neutral gear gear, described relation is equal to, and described algorithm is defined as:
S
Calc=(S
Odd+ S
Even)/2, wherein
S
CalcBe the neutral position of described calculating,
S
OddBe the sense position of described gear selector when determining that described speed changer is in odd gear, and
S
EvenIt is the sense position of described gear selector when determining that described speed changer is in the even number gear.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0913675.5 | 2009-08-06 | ||
| GB0913675.5A GB2472570B (en) | 2009-08-06 | 2009-08-06 | Method for indicating offset error in a vehicle transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101994824A true CN101994824A (en) | 2011-03-30 |
| CN101994824B CN101994824B (en) | 2015-09-30 |
Family
ID=41129684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010248744.7A Active CN101994824B (en) | 2009-08-06 | 2010-08-06 | The method of biased error in instruction transmission for vehicles |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101994824B (en) |
| DE (1) | DE102010033244B4 (en) |
| GB (1) | GB2472570B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828093A (en) * | 2014-06-06 | 2015-08-12 | 北汽福田汽车股份有限公司 | Gear sensor correction method and system of vehicle, and vehicle having gear sensor correction system |
| CN109282030A (en) * | 2017-07-20 | 2019-01-29 | 上海汽车集团股份有限公司 | A kind of selector fork dead-centre position self-adapting regulation method, device and electronic equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020123343A1 (en) * | 2020-09-08 | 2022-03-10 | Bayerische Motoren Werke Aktiengesellschaft | Method and device for checking the position of the shift lever of a vehicle gearbox |
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| US5950491A (en) * | 1998-04-01 | 1999-09-14 | Eaton Corporation | Adaptive neutral sensing |
| CN1432112A (en) * | 2000-06-05 | 2003-07-23 | 伊顿公司 | Adaptive calibration of X-Y position sensor of shift member |
| GB2452054A (en) * | 2007-08-23 | 2009-02-25 | Ford Global Tech Llc | A control system for a motor vehicle transmission |
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| GB2370325A (en) | 2000-12-19 | 2002-06-26 | Luk Lamellen & Kupplungsbau | A method of calibrating an automated transmission |
| DE102007013458A1 (en) | 2007-03-21 | 2007-12-06 | Daimlerchrysler Ag | Gear unit switching device for motor vehicle, has gearshift lever with two digital switches for detecting neutral-position of lever, where switches detect different gearshift level positions, which exceed allowable tolerance |
| DE102007054434B3 (en) | 2007-11-13 | 2009-02-19 | Getrag Ford Transmissions Gmbh | Sensor system analyzing method for e.g. automatic gearbox, in motor vehicle, involves determining position of selector fork depending on base output signal, function for amplification factor and base response curve |
-
2009
- 2009-08-06 GB GB0913675.5A patent/GB2472570B/en not_active Expired - Fee Related
-
2010
- 2010-08-03 DE DE102010033244.5A patent/DE102010033244B4/en active Active
- 2010-08-06 CN CN201010248744.7A patent/CN101994824B/en active Active
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| US5095774A (en) * | 1990-06-14 | 1992-03-17 | Zexel Corporation | Method for controlling gear transmission for vehicle |
| CN1088317A (en) * | 1992-11-25 | 1994-06-22 | 易通公司 | The computer controlled method of calibrating of X-Y mobile device |
| GB2291941A (en) * | 1994-08-02 | 1996-02-07 | Fichtel & Sachs Ag | Gear ratio sensing arrangement indicates track and movement away from neutral |
| US5950491A (en) * | 1998-04-01 | 1999-09-14 | Eaton Corporation | Adaptive neutral sensing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104828093A (en) * | 2014-06-06 | 2015-08-12 | 北汽福田汽车股份有限公司 | Gear sensor correction method and system of vehicle, and vehicle having gear sensor correction system |
| CN104828093B (en) * | 2014-06-06 | 2017-09-12 | 北汽福田汽车股份有限公司 | Modification method, system and the vehicle with it of the shift sensor of vehicle |
| CN109282030A (en) * | 2017-07-20 | 2019-01-29 | 上海汽车集团股份有限公司 | A kind of selector fork dead-centre position self-adapting regulation method, device and electronic equipment |
| CN109282030B (en) * | 2017-07-20 | 2020-08-04 | 上海汽车集团股份有限公司 | Self-adaptive adjusting method and device for shift fork dead point position and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010033244A1 (en) | 2011-02-10 |
| GB2472570B (en) | 2015-06-03 |
| GB2472570A (en) | 2011-02-16 |
| GB0913675D0 (en) | 2009-09-16 |
| DE102010033244B4 (en) | 2021-09-16 |
| CN101994824B (en) | 2015-09-30 |
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