CN102057190B

CN102057190B - Transmission cable assembly for high temperature environments

Info

Publication number: CN102057190B
Application number: CN200880129694.1A
Authority: CN
Inventors: D·G·戈迪; K·伯特
Original assignee: Dura Global Technologies LLC
Current assignee: Dura Global Technologies LLC
Priority date: 2008-04-18
Filing date: 2008-04-18
Publication date: 2014-10-15
Anticipated expiration: 2028-04-18
Also published as: WO2009128834A1; EP2268945A1; CN102057190A

Abstract

Automotive push-pull type transmission shift cable assemblies are disclosed that meet new specifications for extended performance at high temperatures, including certain embodiments suitable for use at high temperatures of at least 165 DEG C. The cable comprises a conduit and a core wire extending through the ends of the conduit to a shifter end portion and transmission end portion. The transmission end portion comprises a core wire length adjuster and a conduit end fitting. The core wire length adjuster comprises a core wire adjuster isolator and a retainer cap. At least certain embodiments of the transmission shift cable assemblies pass one or a combination of the following tests: a. Lash 200,000 Cycles Test, b. Attachment Pin Installation 200,000 Cycles Test, c. Attachment Pin Extraction 200,000 Cycles Test, and d. Cable Efficiency Test e. In- Vehicle Routing 165 DEG C Cable Strength Test.

Description

For the driving-cable assembly of hot environment

The application requires the preference of submitting on April 18th, 2008, denomination of invention is the PCT/US2008/060829 of " for the driving-cable assembly of hot environment ", and its whole disclosed content is included in herein by reference.

Technical field

The present invention relates to motor vehicle speed change cable assembly, and relate to the element of such cable assembly, and specifically, relate to the cable assembly and the element that are suitable for meeting high-temperature technology specification.

background technique

Motion-transmission telecontrol cable the assembly (as push away-La cable or Bowden cable) that is suitable for transmitting force and motion is as motor vehicle speed change cable assembly.Speed change cable assembly generally includes flexible core element (heart yearn or core or twisted wire), and this flexible core element is enclosed in flexible outer sheath (conduit) slidably.End of conduit annex is positioned at each end of conduit, and core extend through end of conduit annex (also referred to as conduit fitting).In some designs, for example, an end (shift fork end) at cable assembly is located, and heart yearn is attached on the speed-changing box pulling fork selector in operator cabin or the seating accommodation at vehicle through boom end annex conventionally, and this boom end annex is attached on this end of heart yearn.In some designs, for example, cable resides in driver circuit duct.The second end (gearbox end) of cable assembly locate or near driver circuit duct, engine compartment etc. it in, heart yearn is attached on the controlled parts of gearbox of motor vehicle, for example be attached on movable lever, this movable lever plays the shifting arm of gearbox etc.Rugged environment conventionally must be stood in this end of cable assembly during vehicle operating, and these rugged environment usually comprise the temperature of rising.Annex (being optionally called null terminator Null assembly) in gearbox end comprises the heart yearn length adjuster being attached on gearbox in some cases.Heart yearn length adjuster is used for regulating the length of heart yearn, for example, at the original assembly process of vehicle or during maintenance or maintenance service, to solve (account for) manufacturing tolerances accumulation (or " build and change ") etc.Null terminator Null assembly in another end is fixed on final controlling element, is fixed on speed change lever or other controlling component.Conventionally, final controlling element and controlled parts are each has mount pin or other suitable feature, thereby cable assembly can transmit load or motion between two mounting points, this mount pin is selectively called attachment pin, for example bulb-shaped attachment pin or taper pin, this other suitable feature is suitable for being connected on cable assembly at mounting points place.In other words, make speed change lever or other final controlling element component movement carry out transmission power/motion via the longitudinal movement of the twisted wire in sheath, to make accordingly controlled component movement and therefore to make gearbox speed change.It is upper that each conduit fitting is attached to corresponding support or other fixture or supporting structure etc., and packing ring can be used between them and be positioned at fire division wall place, and this fire division wall is isolated engine compartment or transmission line duct with seating accommodation.

The twisted wire of motion-transmit cable assembly and its attachment pin and other installation elements can collectively have relative large dimensional tolerance range owing to manufacturing variation etc.In speed control system of car, this can cause the difference that coordinates and from a unit to the marked difference of sub-cell, cause the possibility of the relative movement between annex and pin, this relative movement is called play.In some cases, play causes the inaccuracy of the operation of speed variator system.In addition, these known terminal assemblies usually have huge installation load (null terminator Null assembly being attached to the power needing on pin or other installation elements), to obtain corresponding high extraction load (null terminator Null assembly is removed to the power needing from pin or other installation elements).Traditionally, play problem is alleviated by the use of the isolator of interconnection place between pin and null terminator Null assembly, and this isolator design becomes to absorb vibration.Isolator must be made up of soft elastic material, this elastic material has significant adaptability or elasticity, to absorb vibration, therefore, these isolators may be worn and torn, and the place of pin contacts isolator () may damage in the region of power or load centralization.But the material of isolator must sufficiently tolerate in the deflection or the compression that extend in use time and set (deflection or compression set).

With control the play problem relevant with extraction force with installation by gearbox place, the severe operational condition in motor vehicle engine cabin or transmission line duct and aggravating conventionally, these severe operational conditions are for example included in the high temperature of daily generation in engine compartment and transmission line duct.Modern technologies code requirement suitably works between extending using period under 149 DEG C or lower temperature at some motor vehicle speed change cable assemblies in gearbox end (in engine compartment or transmission line duct).Because the major part of the heat shedding is directed, so modern technologies are that cable and high heat are separated, instead of select to change cable around gearbox.But the inventor has been found that such a solution is not best.

Correspondingly, there are the needs for improved speed change cable assembly and element, these speed change cable assemblies and element are suitable for meeting the above stricter condition of mentioning for speed change cable assembly, solve the dimensional tolerance range of complementary elements and have the effect of the vibration that is reduced in operation period.Also have motion is transmitted to telecontrol cable assembly and the needs for the end accessory of such cable assembly, these cable assemblies and this end accessory require relative low installation load, the relatively high extraction load of maintenance simultaneously.Also have motion is transmitted to telecontrol cable assembly and the needs of end accessory for it, these cable assemblies and this end accessory tolerate wearing and tearing or the damage of the location of the interconnection between null terminator Null assembly and mount pin.Also have the needs of pair terminal assembly, these terminal assemblies are economy and simple about proper orientation assembling and installation.

The object of the invention is, the speed change cable assembly and the element that meet or solve a kind of or combination of above requirement or problem are provided.At least some embodiment's of the present invention other object is obvious by becoming by the openly following and detailed description of example embodiment for those skilled in the art.

Summary of the invention

According to an aspect, the speed change cable assembly of Motor Vehicle comprises conduit sub-component, the heart yearn that this conduit sub-component comprises conduit and extends through conduit.Cable assembly also comprises the shift fork end sections being connected on heart yearn and is connected to the gearbox end sections on heart yearn.Shift fork end sections comprises end of conduit partial polymer isolator and heart yearn regulator polymer isolator.Speed change cable assembly stable performance at 165 DEG C of Motor Vehicle.As term used herein, if the speed change cable assembly of Motor Vehicle has the characteristic that meets the following performance test further describing below, its " stable performance at 165 DEG C ":

● 100,000 loop around tests of play,

Some exemplary embodiment of the speed change cable assembly of this Motor Vehicle has one or more further characteristic that can meet the following other performance test further describing below:

● cable efficiency test, and

● 165 DEG C of cable strength tests in vehicle route.Attachment pin is installed 200,000 loop around tests, and

● attachment pin extracts 200,000 loop around tests.

In some exemplary embodiment of the speed change cable assembly of this Motor Vehicle, heart yearn regulator polymer isolator has holder cap nest and latch nest part, and gearbox end sections also comprises polymer holder cap, this polymer holder cap:

● be configured to partly be received by the holder cap socket and spigot joint of heart yearn regulator polymer isolator, and

● have latch end nest, this latch end nest is configured to receive and engage a part for latch, and a part for this latch is received in the latch nest part of heart yearn regulator polymer isolator.

In some exemplary embodiment, the speed change cable assembly of the Motor Vehicle of stable performance has the further characteristic that meets following test:

● 200,000 loop around tests of play,

● attachment pin is installed 200,000 loop around tests, and

● attachment pin extracts 200,000 loop around tests.

According to another aspect, the speed change cable assembly of Motor Vehicle is provided, the speed change cable assembly of these Motor Vehicle has the performance (extended performance) of expansion under the high temperature that comprises at least 165 DEG C, and comprises push away-pull-up cable, shift fork end sections and gearbox end sections.Cable (specifically conduit sub-component) comprises conduit and heart yearn or twisted wire, and this heart yearn or twisted wire extend to shift fork end sections and gearbox end sections through the end of conduit.Gearbox end sections comprises heart yearn length adjuster and end of conduit annex.This heart yearn length adjuster comprises heart yearn regulator isolator and holder cap.This heart yearn regulator isolator forms boring, and this boring has latch nest part and holder cap nest part, and comprises a kind of material, and this material will provide at elevated temperatures the performance of expansion and is not significantly out of shape or embrittlement.Spendable exemplary materials comprises silicone, thermoplastic elastomer (TPE) (TPE), thermoplastic polyester elastomer (TPEE), polyester type thermoplastic polyurethane compound and other.In some exemplary embodiment, regulator isolator is formed by polyester type thermoplastic polyurethane completely, fills or be not filled with granular material.Holder cap comprises suitable material, for example, as Polyetherimide thermoplastic (PEI), nylon 6 thermoplastics (polyamide 6), nylon 66 thermoplastics (polyamide 66) (alterative version) etc., glass fibre filled nylon-6/6.Holder cap is configured to partly be received by the holder cap socket and spigot joint of heart yearn regulator isolator, and has latch end nest, and this latch end nest is configured to receive and engage a part for latch, the free end of for example latch.In some exemplary embodiment, holder cap is formed by glass fibre filled nylon-6/6 completely.End of conduit annex comprises end of conduit annex isolator.In some exemplary embodiment, end of conduit annex comprises: sleeve, and this sleeve is around the external stability of conduit, and end of conduit annex isolator is positioned at least a portion of sleeve; With end of conduit annex cap, this end of conduit annex cap is at least a portion of isolator; And end of conduit annex bearing, this end of conduit annex bearing is at least a portion of end of conduit annex isolator, and joint end of conduit annex cap.Optionally, swivelling pipe extends in bearing, and has longitudinal drilling, and heart yearn extends towards heart yearn length adjuster through this longitudinal drilling.Bearing element is configured to single-piece conventionally, and this single-piece coordinates with attachment leg or is coupled on it.Attachment leg can be the extension part from car body or gear-box case, by Bolt Connection on this car body or gear-box case or location in its vicinity.End of conduit annex isolator comprises suitable material, as thermoplastic elastomer (TPE) (TPE), polymerizing silicone compound, TPUE (unspecific) (TPU), TPUE (polyester) (TPU-polyester) etc., for example meet the material of ASTM D2000 M3GE508 Z2, as meet the polymerizing silicone compound of ASTM D2000 M3GE508 Z2.Polymer in some exemplary embodiment at 165 DEG C on the expansion period using (for example several months or 1 year or for many years) substantially keep its durometer value or hardness.If it is excessive that material and original hardness evaluation depart from, the play of harmful amount may occur in mounted cable assembly.In some exemplary embodiment, end of conduit annex isolator has and its durometer value was maintained in the several months or in some cases even in 1 year or for many years or between the automobile spreadable life, at 165 DEG C, be less than 20% or be even less than the degree of degeneration of 10% (as being less than 5%).In some exemplary embodiment, end of conduit annex isolator comprises polymerizing silicone compound, and this polymerizing silicone compound has following characteristic under this type of service: its durometer value was maintained in the several months or in some cases even in 1 year or for many years or between the spreadable life, at 165 DEG C, be less than 20% or be even less than the degree of degeneration of 10% (as being less than 5%).In some exemplary embodiment, end of conduit annex isolator is formed by the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2 completely, fills or be not filled with granular material.In some exemplary embodiment, the material of end of conduit annex isolator, after being exposed to operating temperature, can not be out of shape by enlarging markedly the amount of play substantially.At least some embodiment of speed change cable assembly provides a kind of favourable solution for the new strict demand of the gearbox end sections of the speed change cable assembly for Motor Vehicle.In some embodiment at least, collet needn't be applied on cable assembly, supplies with thus one and more easily assembles and be packaged into the economic cable assembly in vehicle (being included in the part in engine compartment or the transmission line duct of motor vehicle).

According to another aspect, the speed change cable assembly of above disclosed Motor Vehicle is provided, the speed change cable assembly of these Motor Vehicle provides the performance of expansion under the high temperature of at least 165 DEG C.In at least some embodiment of speed change cable assembly, gearbox end sections is by one or more (the further describing below) of following test:

● 100,000 loop around tests of play,

● attachment pin is installed 100,000 loop around tests,

● attachment pin extracts 100,000 loop around tests,

● cable efficiency test, and

● 165 DEG C of cable strength tests in vehicle route.

In at least some embodiment of speed change cable assembly, gearbox end sections is by following some that test or combine (further describing) below:

● 200,000 loop around tests of play,

● attachment pin is installed 200,000 loop around tests,

● attachment pin extracts 200,000 loop around tests,

● cable efficiency test, and

● 165 DEG C of cable strength tests in vehicle route.

According to another aspect, a kind of speed change cable assembly of Motor Vehicle comprises in combination: conduit sub-component, the heart yearn that comprises conduit and extend through conduit; Shift fork end sections; And gearbox end sections.Heart yearn surmounts the end of conduit and extends in some exemplary embodiment.Conduit sub-component extends to gearbox end sections from shift fork end sections.Gearbox end sections comprises heart yearn length adjuster and end of conduit annex.Heart yearn regulator isolator and holder cap that heart yearn length adjuster comprises shell and kept by shell.Heart yearn regulator isolator comprises polyester type thermoplastic polyurethane, and forms boring, and this boring has latch nest part and holder cap nest part.In some exemplary embodiment, regulator isolator is formed by polyester type thermoplastic polyurethane completely, fills or be not filled with granular material.Holder cap is configured to partly be received by the holder cap socket and spigot joint of heart yearn regulator isolator, and there is latch end nest, this latch end nest is configured to receive and engage a part for latch, and a part for this latch receives in the latch nest part of heart yearn regulator isolator.Holder cap comprises glass fibre filled nylon-6/6.End of conduit annex comprises end of conduit annex cap in the end of conduit annex isolator in the sleeve of the external stability of conduit, at least a portion at sleeve, at least a portion at isolator, at least a portion of end of conduit annex isolator and engage the end of conduit annex bearing of end of conduit annex cap and the swivelling pipe from extending in bearing.Swivelling pipe has longitudinal drilling, and heart yearn extends towards heart yearn length adjuster through this longitudinal drilling.In some exemplary embodiment, the place that heart yearn is for example connected to, on the bar (steel pole) in the boring at swivelling pipe at it stops.End of conduit annex isolator comprises the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2.

According to another aspect, a kind of speed change cable assembly of Motor Vehicle comprises in combination: conduit sub-component, and this conduit sub-component comprises conduit and passes conduit and surmount the heart yearn that end of conduit is extended; Shift fork end sections; And gearbox end sections.Conduit sub-component extends to gearbox end sections from shift fork end sections.Gearbox end sections comprises heart yearn length adjuster and end of conduit annex.Heart yearn length adjuster is in the end of cable assembly, and the heart yearn regulator isolator and the holder cap that comprise shell and kept by shell.Heart yearn regulator isolator be substantially annular, made by soft plastic, and form center hole, this center hole has latch nest part and holder cap nest part.Heart yearn regulator isolator comprises polyester type thermoplastic polyurethane compound.In certain embodiments, heart yearn regulator isolator is formed as the independent member being made up of polyester type thermoplastic polyurethane compound.Holder cap is configured to partly be received by the holder cap nest part of heart yearn regulator isolator, and there is latch end nest, this latch end nest is configured to receive and engage the end of latch, and the end of this latch receives in the latch nest part of heart yearn regulator isolator.Holder cap comprises 25%-50% glass fibre filled nylon-6/6.In some exemplary embodiment, holder cap cover shape becomes the independent member (as 30%-35%) being made up of 25%-50% glass fibre filled nylon-6/6, for example 33% glass fibre filled nylon-6/6.Substantially be concentric according to the embodiment's of this aspect of the present disclosure holder cap and heart yearn regulator isolator, and there is corresponding structure, the structure of this correspondence is exercisable, so that at least interlocked with one another when receive in the latch nest part of heart yearn regulator isolator and the latch end nest of holder cap from the latch of gearbox.End of conduit annex comprises: sleeve, and this sleeve is on the end of conduit; End of conduit annex isolator, this end of conduit annex isolator is at least a portion of sleeve; End of conduit annex cap, this end of conduit annex cap extends (contacting although there is no need) at least a portion of isolator; Bearing, this bearing engages end of conduit annex cap, and extension (contacting although there is no need) at least a portion of end of conduit annex isolator; Swivelling pipe, this swivelling pipe extends in bearing, and has longitudinal drilling, and heart yearn extends in this longitudinal drilling towards heart yearn length adjuster; And sheath or supporting cover, this sheath or supporting cover on swivelling pipe near bearing.End of conduit annex isolator comprises the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2.

In some exemplary embodiment, end of conduit annex isolator is the independent member being made up of polymerizing silicone compound that meets ASTM D2000 M3GE508 Z1 Z2.Have by 100,000 loop around tests of play (further describing below) and in some cases also by the characteristic of one of following other high-temperature behavior test (further describing below) or combination according to the cable assembly of some exemplary embodiment of disclosure this respect:

● attachment pin is installed 100,000 loop around tests,

● attachment pin extracts 100,000 loop around tests,

● cable efficiency test, and

● 165 DEG C of cable strength tests in vehicle route.

Some embodiment of speed change cable assembly have can by following test one of or the characteristic of combination (further describing below):

● 200,000 loop around tests of play,

● attachment pin is installed 200,000 loop around tests,

● attachment pin extracts 200,000 loop around tests,

● 165 DEG C of cable strength tests in vehicle route, and

● cable efficiency test.

Person of skill in the art will appreciate that, each embodiment of speed change cable assembly disclosed herein and element has represented significant technological progress and significant advantage can be provided.For some exemplary embodiment, these advantages comprise their high-temperature behavior characteristic.Can realize good design flexibility and performance by means of cable assembly disclosed herein and element.More generally say, following description by the disclosure and some exemplary embodiment will be recognized, can realize speed change cable assembly and element, these speed change cable assemblies and element meet the stricter technical specification of promulgating for some motor vehicle purposes recently, have superperformance, production economy or have two or more the combination in these advantages.To be preferably obvious with the following open of example embodiment with selectional feature and advantage by some in addition.Known advantage of the present disclosure, person of skill in the art will appreciate that, has multiple embodiments of selection of cable assembly disclosed herein and element.Aspect this; be appreciated that; the feature of any description or disclosed embodiment or element about or be capable of being combined or alternative for disclosed any or all further features and element, and whole such change of feature and element and combination are all in open and claimed scope of the present invention.

Brief description of the drawings

Some preferred embodiment is described with reference to the accompanying drawings, in the accompanying drawings:

Fig. 1 is according to the stereogram of the speed change cable assembly of one of the multiple possibility of the present invention alternative;

Fig. 2 be disconnect in the part of the heart yearn length adjuster of the gearbox end of the cable assembly of Fig. 1, amplify exploded perspective view;

Fig. 3 is the part disconnection of the heart yearn length adjuster of the cable assembly of Fig. 1 is cut open with part, amplification stereogram;

Fig. 4 is the heart yearn length adjuster of cable assembly of Fig. 1 and the disconnection of the part of the end of conduit of gearbox end are cut open with part, amplification stereogram, is included in the cable components between heart yearn length adjuster and the end of conduit of gearbox end;

Fig. 5 is the amplification stereogram that part is cut open and part disconnects, the swivelling pipe of the cable assembly of presentation graphs 1 and relevant Sealing;

Fig. 6 and 6A be the part of a part for the cable assembly of Fig. 1 cut open and part disconnect, amplification stereogram, this part comprises end of conduit annex and the adjacent portion of the gearbox end of cable assembly;

Fig. 7 is the view that the part of alternative disconnects, and comprises gearbox end end of conduit annex, heart yearn length adjuster and between them and surmount the cable components of end of conduit annex;

Fig. 8 is the sectional view that is passed in the line 8-8 in Fig. 7;

Fig. 9 is the zoomed-in view of the cap holder of embodiment's heart yearn length adjuster of the speed change cable assembly of Fig. 7, and this cap holder is suitable for receiving taper pin;

Figure 10 is the zoomed-in view in the cross section 10 in Figure 11;

Figure 11 is the sectional view that is passed in the line 11-11 in Fig. 9;

Figure 12 is the zoomed-in view of the taper pin of the speed change cable assembly embodiment's of Fig. 7 heart yearn length adjuster, and this taper pin is suitable for being received by the cap holder of Fig. 7 and relevant isolator;

Figure 13 is the zoomed-in view of the isolator of the speed change cable assembly embodiment's of Fig. 7 heart yearn length adjuster, and this isolator is suitable for cooperating with the cap holder of Fig. 9 and the taper pin of Figure 12;

Figure 14 is the sectional view that is passed in the line 14-14 in Figure 13;

Figure 15 is the amplification stereogram of the conduit isolator of the gearbox end end of conduit annex of the cable assembly of Fig. 7;

Figure 16 is the sectional view of the conduit isolator of Figure 15; And

Figure 17 is the schematic diagram of cable assembly, and this cable assembly has the mold pressing length that is less than 850mm, is arranged on on the test mandrel equipment in the enterprising Mobile state efficiency test of cable (" cable efficiency test "), as further described below.

Figure 18 is the schematic diagram of cable assembly, and this cable assembly has the mold pressing length that is greater than 850mm and is less than 1250mm, is arranged on on the test mandrel equipment in the enterprising Mobile state efficiency test of cable, as further described below.

Figure 19 is the schematic diagram of cable assembly, and this cable assembly has the mold pressing length that is greater than 1250mm, is arranged on on the test mandrel equipment in the enterprising Mobile state efficiency test of cable, as further described below.

Should be appreciated that, accompanying drawing needn't be in proportion, presented the crucial or optionally expression of some simplification of each embodiment of feature with explanation basic principle of the present invention.The specific design feature (for example comprising concrete size, orientation and the shape of isolator and adapter ring) of telecontrol cable assembly disclosed herein will partly be determined by objectives purposes and Environmental Conditions.Some feature of illustrated embodiment has been amplified or has been out of shape with respect to other parts, watches and knows understanding to facilitate.Specifically, thin feature may be thickened, for example, for clear or explanation.For whole references of direction and position, unless otherwise instructed, refer to the orientation of the telecontrol cable assembly showing in diagram that.Usually, top or upwards refer to the upward direction of paper in the figure discussing, and bottom or refer to the downward direction in this paper downwards.

Embodiment

Will be obvious that for those skilled in the art's (in other words, for the personnel of knowledge or experience with the art), multiple use and design modification are possible for improved motion transmission-telecontrol cable assembly disclosed herein.Each alternative and discussing in detail as follows with reference to the telecontrol cable assembly for motor vehicle speed variator system of preferred embodiment illustrates General Principle of the present invention.Here in disclosed, such embodiment of cable assembly of being suitable for using as speed change cable assembly and in some other embodiment, shift fork end is selectively called input end, because it receives operator's manual movement etc., so that gearbox speed change.Equally, therefore, shift fork end sections is selectively called input end sections.Correspondingly, gearbox end is selectively called output end, because gear shift campaign is transported to gearbox by it.Therefore gearbox end sections can be called output end sections.Other embodiment who is suitable for other purposes will be obvious for those skilled in the art of known disclosure advantage.And, in the scope of objectives purposes that is suitable for given embodiment, can be included in speed change cable assembly disclosed herein for various alternative or other features known to those skilled in the art and design, be for example the No.10/159 of Reverse Clip Cap Terminal Connector at the title of the common U.S. Patent application of transferring the possession of, 755, title is the No.10/828 of Terminal Connectors and Terminal Connector Assemblies, 385, and title is the No.10/930 of Conduit End Fitting, any of disclosed DESIGNED FEATURE in 105, whole the disclosing thus for whole objects specially all comprise for reference of these patent applications.

As mentioned above, at least some embodiment of speed change cable assembly provides a kind of favourable solution for the new strict demand of the gearbox end sections of the speed change cable assembly for Motor Vehicle.Specifically, such embodiment is feasible, is suitable on the expansion period, using at elevated temperatures, as narrated in those technical specifications.According to such embodiment, high temperature cable assembly has the performance of expansion under the high temperature that comprises at least 165 DEG C.In at least some embodiment of speed change cable assembly, gearbox end sections is by following of testing, multiple or whole.

High temperature service life periodic test

Process: the driving-cable assembly for motor vehicle is installed according to the vehicle route of purpose by use actual vehicle or by means of suitable mount type frame or fixture simulation actual vehicle, and the vehicle route of this purpose comprises whole supports and attachment hardware.Use the plan temperature representing in Table A, under the end of selection connection rod place of the Maximum Torque 111N applying at to(for) each gearbox locked position of coupler, make to stand 200,000 circulations with 20+/-2 circulation (CPM) per minute cable by its range.Duty cycle is included in the passing through completely of gear shift cable pattern of operator end, and this gear shift cable pattern is set up by mounting arrangement conventionally.Before the beginning of the each circulation plan sequence representing, in freely making cable core by its range circulation 5 times, 5% saline solution is sprayed to the outside of cable end in Table A.

Table A: circulation plan and temperature range (PV)

Loop number	Accumulative total circulation	Temperature outside vehicle	Temperature in vehicle
				35,000	35,000	65℃	23℃
10,000	45,000	-40℃	-40℃
				15,000	60,000	165℃	82℃
40,000	100,000	65℃	23℃
				100,000	200,000	23℃	23℃

100,000 loop around tests of play

When cable assembly has completed 100,000 circulation times (seeing above Table A), it is arranged in the code test fixture of simulation cable route, for example, as shown in Figure 17-19.Figure 17 represents the layout for cable assembly 210, and this cable assembly 210 has the mold pressing length that is less than 850mm.Figure 18 represents the layout for cable assembly 212, and this cable assembly 212 has the mold pressing length that is greater than 850mm and is less than 1250mm.Figure 19 represents the layout for cable assembly 214, and this cable assembly has the mold pressing length that is greater than 1250mm.Regulator and the locking of end of conduit annex are put in place, 17.8N compressive load is applied on cable core, be applied on conduit sub-component core.Then travel indicator makes zero.Then the tension loading of 17.8N is applied on core.Then the travel distance of core is recorded as to play or gap.Under the load of 17.8N, the total backlash of cable assembly is no more than:

■ 1.3mm, the cable for mold pressing catheter length below 850mm;

■ 2.0mm, exceedes 850mm but is less than the cable of 1200mm for mold pressing catheter length; Or

■ 2.5mm, for length 1200mm but mold pressing catheter length is less than the cable of 2400mm.

Attachment pin is installed 100,000 loop around tests

When cable has completed circulation time 100,000 times, it is removed, and measure the installing force of attachment pin (for example, ball stud, taper pin etc.).Specifically, strain indicator is used for measuring regulator is installed to desired power in maximum material condition attachment pin.Attachment pin is installed to desired maximum, force in regulator completely by record.This requirement is the peaked measurement installing force of 130N.

Attachment pin extracts 100,000 loop around tests

After cable has completed 100,000 circulations, it is removed, and measure regulator is removed to desired power from attachment pin.Specifically, strain indicator is used for measuring limited material condition attachment pin is removed to desired maximum, force from regulator.Record is removed desired maximum, force by attachment pin from regulator.This requirement is the measurement extraction force of 82N minimum value.

Cable efficiency test

Life cycle duration of test divide three times (specifically before Life cycle test, during and afterwards) measure the dynamic efficiency of cable assembly.More particularly, in zero degree circulation place, carry out following test 100,000 circulations place and 200,000 circulations place.By cable unit firmly fixed line simulation general cable route code test fixture in.For example, can adopt the test mandrel equipment 200 of describing in Figure 17-19.Test mandrel equipment 200 comprises test fixture 202, large axle 204 and more careful axle 206 and 208.Figure 17 represents the layout for cable assembly 210, and this cable assembly 210 has the mold pressing length that is less than 850mm.Figure 18 represents the layout for cable assembly 212, and this cable assembly 212 has the mold pressing length that is greater than 850mm and is less than 1250mm.Figure 19 represents the layout for cable assembly 214, and this cable assembly has the mold pressing length that is greater than 1250mm.The tension loading of 111N is applied to the gearbox end of the cable perpendicular with gearbox end accessory.The shift fork end of cable and shift fork end accessory are pulled by 15 circulation speed per minute perpendicularly, and record input load.Efficiency value calculates by (load value output is divided by input load value) × 100%.By test requirements document: cable to be determined runs through 200,000 Life cycles tests and maintains 40% minimum efficiency.

165 DEG C of cable strength tests in vehicle route

Use new cable assembly for this test, and it soaked at 165 DEG C one hour before test.Cable uses actual vehicle or by means of suitable mount type frame or fixture simulation actual vehicle, installs according to the vehicle layout of purpose, and this vehicle layout comprises whole supports and attachment hardware.Core loads five times by the tension loading of 667N, continues ten seconds at every turn.The compressive load of 333.8N is applied on core five times, continues ten seconds at every turn.The permanent change of the length of core or casing assembly will can not be measured.

200,000 loop around tests of play

When cable assembly has completed circulation time 200,000 times, it is arranged in the code test fixture of the general cable route of simulation.Regulator and the locking of end of conduit annex are put in place, 17.8N compressive load is applied on core.Then travel indicator makes zero.Then the tension loading of 17.8N is applied on core.Then the travel distance of core is recorded as to play or gap.Under the load of 17.8N, the total backlash of cable assembly is no more than:

■ 1.3mm, the cable for mold pressing catheter length below 850mm;

Attachment pin is installed 200,000 loop around tests

When cable has completed circulation time 200,000 times, it is removed, and measure the installing force of attachment pin.Specifically, strain indicator is used for measuring regulator is installed to desired power in maximum material condition attachment pin.Attachment pin is installed to desired maximum, force in regulator completely by record.This requirement is the peaked measurement installing force of 130N.

Attachment pin extracts 200,000 loop around tests

After cable has completed 200,000 circulations, it is removed, and measure regulator is removed to desired power from attachment pin.Specifically, strain indicator is used for measuring limited material condition attachment pin is removed to desired maximum, force from regulator.Record is removed desired maximum, force by attachment pin from regulator.This requirement is the extraction force of the measurement of 82N minimum value.

Referring now to accompanying drawing, Fig. 1-6 represent according to the various features of an example embodiment of speed change cable assembly of the present disclosure, and this speed change cable assembly is for motor vehicle, as for automobile.Although illustrated embodiment of the present invention is particularly suitable for for automobile, but note, alternative can be suitable for being used in other motor vehicle, and these other motor vehicle comprise truck, bus, motor van, play roller, earthmoving equipment etc., the offroad vehicle such as dune buggy, aerial vehicle and waterborne vehicles.Although illustrated embodiment of the present invention is particularly suitable for as speed change cable assembly, some exemplary embodiment can be used in other motor vehicle purposes, as being for example used in accelerator or similar applications.The advantage that has realized operability at elevated temperatures, for example, different, be suitable for receiving the occasion of the attachment pin relevant with the transmission line duct of any such motor vehicle systems of arranging or vehicle in engine compartment in gearbox end.The following description of some exemplary embodiment will mainly concentrate on speed change cable assembly, and those skilled in the art will be understood disclosed application of principle in the mode of other such vehicular applications by such description.

As shown in Fig. 1-6, telecontrol cable assembly 10 comprises conduit sub-component 12, and this conduit sub-component 12 comprises end of conduit annex and flexible conduit 14.Conduit generally includes: the lining that is formed (for example being formed by Teflon) by suitable material; With in lining, comprise one or more flexible twisted wire wiry or core.In the embodiment shown, conduit 14 is included in the interior flexible twisted wire extending of conduit 14 or heart yearn 16 longitudinally-slidablely.Cable assembly has shift fork end sections 18 and gearbox end sections 20, and each of these two parts comprises end of conduit annex, specifically, comprises the end of conduit annex 22 of shift fork end sections 18 and the end of conduit annex 24 of gearbox end sections 20.It should be appreciated by those skilled in the art that, term " gearbox end sections " and of this sort term, unless clear and definite by context, otherwise refer to part speed change cable assembly, in conventionally using in engine compartment or the transmission line duct of (or plan) motor vehicle.Correspondingly, " shift fork end sections " refers to the part in seating accommodation speed change cable assembly, be arranged in (or intending to be arranged in) motor vehicle in conventionally using.Thereby with reference to specific embodiment shown in Figure 1, gearbox end sections can be used as cable assembly and extend to the part on the right of fire division wall packing ring 26.Therefore gearbox end sections in this embodiment at least comprises such element, as heart yearn length adjuster 38, gearbox end end of conduit annex 24 and anti-wear or insulating sleeve 25.Correspondingly, the shift fork end sections in the embodiment shown in Fig. 1 comprises that cable assembly extends up to the part on the left side of fire division wall packing ring 26, and this part at least comprises the element such as end of conduit annex 22.

In the embodiment shown, end of conduit annex is suitable for or is operably mounted on the cable assembly in vehicle.Cable assembly can be by being fixed to end of conduit annex in the (not shown) such as suitable support or other rigid construction and being in place in vehicle.Multiple alternative or other mounting characteristic will be apparent for those skilled in the art by the disclosure, these features are for example in U.S. Patent No. 5,862,710 and No.5,884, disclosed conduit fitting design in 531, the open of these patents is specially included in for reference here for whole objects thus.Illustrated embodiment is included in the packing ring 26 along the position of cable assembly, and this packing ring 26 is suitable for installing or otherwise being positioned at fire division wall or other dividing plate place between vehicle seating accommodation and engine compartment or transmission line duct.In many cases, high-temperature behavior characteristic disclosed herein will only be needed by gearbox end sections 20, and this gearbox end sections 20 is arranged in the wherein daily more extreme engine compartment of temperature or transmission line duct at assembled state.

End of conduit annex 24 comprises sleeve 50, and this sleeve 50 is in position on the outside of this end of conduit 14.End of conduit annex isolator 52 is at least a portion of sleeve 50, and end of conduit annex cap 54 is at least a portion of end of conduit annex isolator 52.Bearing 56 is at least a portion of end of conduit annex isolator 52, and joint end of conduit annex cap 54.As in Fig. 6 A the clearest see, the end of conduit annex isolator 52 of illustrated embodiment has: internal recess 53, it is configured to receive correspondence protuberance 55 or other such structure characteristics of sleeve 50; With outer bumps 57, it is configured to be received in the peripheral groove 59 being formed collaboratively by end of conduit annex cap 54 and end of conduit annex bearing 56.In such a way, A/C end accessory 24 positions along cable assembly, the element cooperation of end of conduit annex 24 ground.Multiple alternatives will be obvious for those skilled in the art of known disclosure advantage.Swivelling pipe 28 and sheath 30 have the part of being rotatably connected 32 in aperture 34, to allow rotatablely moving with respect to other element of end of conduit annex 24.Heart yearn 16 is connected on bar 36, for example, be connected on steel pole or other suitable bar, and this bar 36 extends to the heart yearn length adjuster 38 of gearbox end sections 20.Heart yearn can be fixed on bar 36 by any suitable mode, as for example by staking out (staking) or crimping.Bar longitudinally seesaws in swivelling pipe 28, limits the line of force with convenient sets of cables part by the operator of vehicle shift fork etc. while actuating.

In an illustrated embodiment, end of conduit annex 24 is also included within the pressure seal (wiper seal) 33 of the end of swivelling pipe 28.As in Fig. 5 the clearest see, the edge 35 of pressure seal 33 has the tight sliding contact with the outer surface of bar 36, thereby pressure seal 33 can prevent that dirt etc. from entering swivelling pipe neutralization and causing potentially wearing and tearing or the constraint between bar 36 and swivelling pipe internal surface, and bar 36 is longitudinally slip in this swivelling pipe.The internal surface of pressure seal 33 in the embodiment shown and the outer surface of swivelling pipe 28 have to be operable to the position of pressure seal 33 are fixed on to the corresponding structure on the end of swivelling pipe 28.Multiple constructive alternative for pressure seal 33 will be obvious for those skilled in the art of known disclosure advantage.In some exemplary embodiment, pressure seal 33 comprises thermoplastic elastomer (TPE), and this thermoplastic elastomer (TPE) keeps soft and sealing at the temperature up at least 165 DEG C.Selectively, for example, sleeve pipe or other such device can be used to sealing rotary tube in case dirt and moisture.As further described below, heart yearn length adjuster 38 is connected on the control unit or parts of the vehicle gear box in operator cabin, as is connected in shifting fork pin or gearbox end pins, so that gearbox arranges movement.For multiple constructive alternative it will be readily apparent to those skilled in the art that for known disclosure advantage of end of conduit annex 24.

End of conduit annex isolator 52 must be enough soft with flexible, to complete its insulator functionality, this insulator functionality comprise absorb or buffering along the vibration of cable component passes.And isolator must show satisfactoryly in the rugged environment in engine compartment or transmission line duct in expansion use time.Now, under above-mentioned stricter temperature performance requires, isolator must pass through battery of tests, and this group test is to expand satisfactory performance in use time at the temperature of rising that is recycled at least 165 DEG C relevant.Correspondingly, the end of conduit annex isolator of speed change cable assembly disclosed herein comprises suitable material, for example formed by suitable material completely, such as thermoplastic elastomer (TPE) of this suitable material (TPE), polymerizing silicone compound, TPUE (unspecific) (TPU), TPUE (polyester) (TPU-polyester) etc.In some exemplary embodiment, end of conduit annex isolator is the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2.To understand, such material has at least tear strength of 10kN/m, as indicated in the Z2 part by ASTM Identifier.In some exemplary embodiment, end of conduit annex isolator comprises the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z1 Z2.Such dyeing material becomes black, as indicated in the Z1 part by ASTM Identifier.Suitable this material is commercially available.In some exemplary embodiment, end of conduit annex isolator is the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z1 Z2 material, as Silastic 21216-V or Silastic 25150, they each can obtain from the Dow Corning company of the Midland of the state of Michigan.Other suitable material will be obvious for those skilled in the art of known disclosure advantage.

Heart yearn length adjuster 38 has main shell structure 39, and this main shell structure 39 forms isolator nest 40 (the isolator nest of horizontal expansion in the embodiment shown).Can use the orientation of other isolator nest and structure the isolator nest of target purposes (as be suitable for), and multiple such alternate ways it will be readily apparent to those skilled in the art that for known disclosure advantage.In some exemplary embodiment, the shell 39 of heart yearn length adjuster 38 comprises: the outer body 60 that limits slideway 62; Slide block 64, this slide block 64 is arranged in slideway 62 longitudinally-slidablely; And lock 66, be used for fixing releasedly the lengthwise position of slide block 64 in slideway 62.As mentioned above, connector rod 36 extends to the swivelling pipe 28 of end of conduit annex 24 from heart yearn length adjuster 38.The adjusting of the position of slide block 64 in slideway 62 and lock 66 joint make the effective length of heart yearn of cable assembly adjusted.In such a way, during the initial assembling of cable assembly or safeguarding, can remove any construction tolerance stack or the accumulation of the design tolerance of each permission of the multiple elements in assembly or sub-component (for example, for) of heart yearn length etc.

Substantially annular or cylindrical shape heart yearn regulator isolator 41 are configured to essentially concentric and are received in isolator nest 40.Heart yearn regulator isolator 41 has the center hole 42 that is positioned at substantially center, and this center hole 42 has latch nest part 44 and holder cap nest part 46, and this latch nest part 44 is suitable for receiving the latch 61 from gearbox.Holder cap 47 is configured to be partly received in the holder cap nest part 46 of isolator 41.In an illustrated embodiment, holder cap see by isolator essentially concentric receive, and there is head part 80 and cannon plug part 82 substantially.Plug portion 82 from the head part 80 extends axially free end 86, and forms latch end nest 48, and this latch end nest 48 extends coaxially to head part from free end in plug portion.Head part is radially being greater than plug portion.In some exemplary embodiment, the holder cap cover shape of just having described becomes single-piece.Latch end nest 48 is suitable for receiving and engaging a part for latch, receives in the embodiment shown the also end end of joining pin.In an illustrated embodiment, the latch end nest 48 of holder cap 47 has flexible curved wall or the protuberance etc. 49 that is configured to Fixed latches 61.Suitable structure comprises for example beading, protuberance, depression etc., and optionally sets up snap fit connection or engage.

In use, when in the latch nest part of latch being inserted to holder cap in such embodiments, it outwards promotes the flexible curved wall of holder cap against isolator, engage ridges or other such structure and by holder cap and isolator interlocking.Latch engages by the structure that is used for fixing latch, increases thus the extraction load for latch.Other embodiment will be obvious for those skilled in the art of known disclosure advantage.Here, in some embodiment of disclosed speed change cable assembly, the latch end nest of holder cap is formed as receiving and engage ball head dummy attachment pin (being selectively called latch).Be applicable to bulb-shaped attachment pin device 61 in the embodiment shown in Fig. 1-6, this bulb-shaped latch 61 for example can be typically connected on speed change lever.In other embodiments, the latch end nest of holder cap is formed as, and receives and engage the latch of taper pin type.Be suitable for having the taper latch 161 of tapered distal end 163 in the embodiment shown in Fig. 7-16.Other embodiment will be obvious for those skilled in the art of known disclosure advantage.In when assembling, in an illustrated embodiment, isolator, latch and holder cap substantially coaxially to each other, and releasedly or non-releasably interlocked with one another.Multiple constructive alternative it will be readily apparent to those skilled in the art that for known disclosure advantage.

, with further reference to Fig. 7-16, the alternative of cable assembly disclosed herein is described now.Specifically, telecontrol cable assembly 110 comprises conduit sub-component 112, and this conduit sub-component 112 has flexible outer sheath or conduit 114 and at the interior longitudinally-slidable flexible twisted wire of conduit 114 or heart yearn 116.Cable assembly has shift fork end sections (not shown) and gearbox end sections 120, and each of these two parts comprises end of conduit annex.Gearbox end sections 120 has end of conduit annex 124.Gearbox end sections also comprises heart yearn length adjuster 138 and anti-wear or insulating sleeve 125.The speed change cable assembly 110 of Fig. 7-16 and more particularly gearbox end sections 120, operate by the mode identical with gearbox end sections 20 with the speed change cable assembly 10 of Fig. 1-6 respectively substantially.End of conduit annex 124 comprises sleeve 150, this sleeve 150 fix in position on the outside of this end of conduit 114.End of conduit annex isolator 152 is at least a portion of sleeve 150, and end of conduit annex cap 154 is at least a portion of end of conduit annex isolator 152.End of conduit annex bearing 156 is at least a portion of end of conduit annex isolator 152, and joint cap 154.Swivelling pipe 128 and sheath 130 have the part of being rotatably connected 132 in aperture 134, to allow rotatablely moving with respect to other element of end of conduit annex 124.Heart yearn 116 is connected on bar 136, and this bar 136 extends to the heart yearn length adjuster 138 of gearbox end sections 120.End of conduit annex 124 comprises pressure seal 133 in the end of swivelling pipe 128.In some exemplary embodiment, pressure seal 133 comprises thermoplastic elastomer (TPE), and this thermoplastic elastomer (TPE) keeps soft and sealing at the temperature up at least 165 DEG C.

End of conduit annex isolator 152 comprises the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2, has at least tear strength of 10kN/m.In some exemplary embodiment, end of conduit annex isolator comprises suitable material, for example formed by this suitable material completely, this suitable material as thermoplastic elastomer (TPE) (TPE), polymerizing silicone compound, TPUE (unspecific) (TPU), TPUE (polyester) (TPU-polyester) etc.In some exemplary embodiment, end of conduit annex isolator is the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z2.In some exemplary embodiment, it comprises the polymerizing silicone compound that meets ASTM D2000 M3GE508 Z1 Z2.As mentioned above, this suitable material is commercially available, and they uses here it will be readily apparent to those skilled in the art that for known disclosure advantage.As in Figure 15 and 16 the clearest see, isolator 152 is formed as single-piece, this single-piece has the hinges 153 of part 155 and 157 that connects isolator 152.

Heart yearn length adjuster 138 has main shell structure 139, and this main shell structure 139 forms isolator nest 140.The shell 139 of heart yearn length adjuster 138 comprises: the outer body 160 that limits slideway 162; Slide block 164, this slide block 164 is arranged in slideway 162 longitudinally-slidablely; And lock 166, this lock 166 is used for fixing releasedly the lengthwise position of slide block 164 in slideway 162.Connector rod 136 extends to the swivelling pipe 128 of end of conduit annex 124 from heart yearn length adjuster 138.The adjusting of the position of slide block 164 in slideway 162 and lock 166 joint make the effective length of heart yearn of cable assembly adjusted.In such a way, during the initial assembling or maintenance of cable, can remove any construction tolerance of heart yearn length.

Substantially annular or cylindrical shape heart yearn regulator isolator 141 are configured to essentially concentric and are received in isolator nest 140.Heart yearn regulator isolator 141 has the center hole 142 that is substantially positioned at center, and this center hole 142 forms latch nest part 144 and holder cap nest part 146, and this latch nest part 144 is suitable for receiving the latch 161 from gearbox.Holder cap 147 is configured to be partly received in the holder cap nest part 146 of isolator 141.In an illustrated embodiment, see holder cap by isolator essentially concentric receive, and there is head part 180 and cannon plug part 182 substantially.Plug portion 182 from the head part 180 extends axially free end 186, and forms latch end nest 148, and this latch end nest 148 extends coaxially to head part from free end in plug portion.Holder cap cover shape becomes single-piece.Latch end nest 148 is suitable for receiving and engaging a part for latch, i.e. the end end of pin in the embodiment shown.In an illustrated embodiment, the latch end nest 148 of holder cap 147 has wall or the protuberance etc. 149 of deflection, and wall or the protuberance etc. 149 of this deflection has the structure 143 of Fixed latches 161.Structure 143 is seen the most clearly in Figure 10, and Figure 10 is the zoomed-in view of the cross section B in Figure 11.Multiple suitable constructive alternative it will be readily apparent to those skilled in the art that for known disclosure advantage.

Heart yearn length adjuster 138 is suitable for being installed on taper latch 161.Thereby the latch end nest 148 of the plug portion 182 of holder cap 147 is configured to, and receives and engage the tapered end 163 of latch 161.

Heart yearn regulator isolator or core regulator isolator must have suitable durometer value, and be have enough flexible, to carry out its insulator functionality, this insulator functionality comprise absorb or buffering along the vibration of cable component passes etc.And isolator must show satisfactoryly in the rugged environment in engine compartment or transmission line duct in expansion use time.Under above-mentioned stricter temperature performance requires, isolator must pass through battery of tests, the stability of this group test and performance (, the satisfactory performance in expansion use time is correlated with at the temperature of rising that is recycled at least 165 DEG C).Correspondingly, the heart yearn regulator isolator of speed change cable assembly disclosed herein comprises suitable material, optionally formed by this suitable material completely, this suitable material is as thermoplastic elastomer (TPE) (TPE), thermoplastic polyester elastomer (TPEE), polyester type thermoplastic polyurethane compound etc.In some exemplary embodiment, heart yearn regulator isolator is suitable material, and this suitable material has the shore hardness of 62D ± 3 that recorded by test method ASTM D-2240.In some exemplary embodiment, heart yearn regulator isolator is suitable polyester type thermoplastic polyurethane compound.In some exemplary embodiment, such polyester type thermoplastic polyurethane compound has the shore hardness of 62D ± 3 that recorded by test method ASTM D-2240, and has the other nominal characteristic of listing in table B below.As used herein, term " nominal characteristic " then refer to typical or approach one group of characteristic of actual value numerical value, experimental performance, etc., for the various different production processes of material, batch or sample obtain these actual values.Thereby, person of skill in the art will appreciate that, nominal characteristic can be used for prescribed material, wherein, will change slightly for some or all numerical value of any actual lots of prescribed material or the characteristic of sample.

Table B

Method for testing performance value

Tensile strength ASTM D-412 37.9MPa

Stretch modulus ASTM D-412

17.2MPa under 100% specific elongation

27.6MPa under 300% specific elongation

Limit elongation ASTM D-412 470%

Flexural modulus ASTM D-790 275.9MPa at 23 DEG C

Tear strength ASTM D-624, Die C 178.3kN/m

In some exemplary embodiment, such polyester type thermoplastic polyurethane compound or above-mentioned other suitable material have the shore hardness of 62D ± 3 that recorded by test method ASTM D-2240, and have the other nominal characteristic of listing in table C below.

Table C

Method for testing performance value

Tensile strength ASTM D-412 37.9MPa

Stretch modulus ASTM D-412

17.2MPa under 100% specific elongation

27.6MPa under 300% specific elongation

Limit elongation ASTM D-412 470%

Flexural modulus ASTM D-790 275.9MPa at 23 DEG C

Tear strength ASTM D-624, Die C 178.3kN/m

Glass transition temperature differential scanning calorimetry (DSC)-37 DEG C

152 DEG C of Vicat softening point ASTM D-1525

In some exemplary embodiment, such polyester type thermoplastic polyurethane compound or above-mentioned other suitable material have the shore hardness of 62D ± 3 that recorded by test method ASTM D-2240, and have the other nominal characteristic of listing in table D below.

Table D

Method for testing performance value

Proportion ASTM D-792 1.23

Tensile strength ASTM D-412 37.9MPa

Stretch modulus ASTM D-412

17.2MPa under 100% specific elongation

27.6MPa under 300% specific elongation

Limit elongation ASTM D-412 470%

Flexural modulus ASTM D-790 275.9MPa at 23 DEG C

Tear strength ASTM D-624, Die C 178.3kN/m

Taber abrasion ASTM D-3389 B

CS-17 wheel, 1kg load, 14.7mg

1,000 circulation 14.7mg

Glass transition temperature differential scanning calorimetry (DSC)-37 DEG C

152 DEG C of Vicat softening point ASTM D-1525

Suitable like this material is commercially available.In some exemplary embodiment, material is: suitable ESTANE material, for example ESTANE 58142, it is from Noveon, and Inc. (Cleveland, Ohio) is available; Or Elastollan C59D53, it is from BASF Corporation Florham Park, and New Jersey is available.Other embodiment will be obvious for those skilled in the art of known disclosure advantage.

The holder cap designs of heart yearn length adjuster becomes easily assembling, and can engage latch or end pin together with heart yearn regulator shell with heart yearn regulator isolator.And holder cap can be designed to show satisfactoryly in expansion use time in the rugged environment in engine compartment or transmission line duct.Here in some exemplary embodiment of disclosed cable assembly, (this cable assembly meets in above-mentioned stricter temperature performance requirement) holder cap can not make cable assembly fail by the test of above-mentioned group, and this group test is with to expand satisfactory performance in use time at the temperature of rising that is recycled at least 165 DEG C relevant.Correspondingly, the holder cap of the end of conduit annex of at least some exemplary embodiment of speed change cable assembly disclosed herein comprises suitable material, and this suitable material has some physical property and performance characteristics.Suitable material for holder cap comprises such as Polyetherimide thermoplastic (PEI), nylon 6 thermoplastics (polyamide 6), nylon 66 thermoplastics (polyamide 66) (alterative version) etc., for example glass fibre filled nylon-6/6, or their any the combination that meets such physical property and performance characteristics.In some exemplary embodiment, high temperature holder cap is formed by 25%-50% glass fibre filled nylon-6/6.In some exemplary embodiment, holder cap is formed by 30%-35% glass fibre filled nylon-6/6.In some exemplary embodiment, holder cap forms (as by 30%-35%) by 25%-50% glass fibre filled nylon-6/6, and for example 33% glass fibre filled nylon-6/6 form.

Exemplary materials (this holder cap is suitable for being used at least some embodiment of cable assembly disclosed herein) for holder cap meets the characteristic of listing in table E below.Attention: the value in table E is the character for Dry-As-Molded (DAM) resin.

Table E

Exemplary materials (this holder cap is suitable for being used at least some embodiment of cable assembly disclosed herein) for holder cap meets the characteristic of listing in above table E, and also meets the other characteristic of listing in table F below.Attention: the value in table F is for Dry-As-Molded (DAM) resin properties.

Table F

Exemplary materials (this holder cap is suitable for being used at least some embodiment of cable assembly disclosed herein) for holder cap meets the characteristic of listing in above table E and F, and also meets the other characteristic of listing in table G below.Attention: the value in table G is the character for Dry-As-Molded (DAM) resin.

Table G

Example

Before current disclosed cable Components Development, multiple alternative cable assembly is tested to be tested and lost efficacy.Be concerned about part and requirement except considering the robustness of manufacturability, cost feasibility, expansion serviceability, design and other design for driving-cable assembly, alternative cable assembly also stands one group of performance test, and this group performance test comprises the important new high-temperature behavior characteristic for 165 DEG C discussed above.Some is this is illustrated in following table for seven kinds of different high temperature test results of attempting.Every line display in following table makes the difference of An attempt of design attempt standing the result of high-temperature behavior test, this high-temperature behavior test comprises high-temperature behavior test described above: play 100,000 loop around test, attachment pin install 100,000 loop around test, attachment pin extract 100,000 loop around test, play 200,165 DEG C of cable strength tests (being called 165 DEG C of tests of intensity I V route) in 000 loop around test, vehicle route, attachment pin install 200,000 loop around test and attachment pin extract 200,000 loop around tests.As represented by column heading, some of An attempt of design adopt bulb latch, and other adopts tapered pin design.Usually, every kind is all suitable for each embodiment of cable assembly disclosed herein.For be illustrated in last column of table below according to speed change cable assembly embodiment's of the present disclosure high-temperature behavior test result.These test result show, each that test by high-temperature behavior according to high temperature embodiment of the present disclosure.In this respect, the high temperature embodiment test result in the end representing in a line has the mean value that passes through of 96.8N, far below the peaked test limit of 130N.Full-scale reading is 132.7N, a little higher than 130N limit, and by the minor adjustments of tolerance of size, design realization is met later.On the contrary, each other line display in table is for the high-temperature behavior test result not according to alternative speed change cable component design of the present disclosure.As can be seen from their test structure, each of these other An attempt of designs to high temperature cable assembly is failure all.Each that in them, neither one is tested by high-temperature behavior.Can be understood by these test result, can successfully overcome according to high temperature speed change cable assembly embodiment of the present disclosure the difficult challenge that strict new high-temperature behavior requires that meets.

In addition, carry out dynamic efficiency test by mode described above.In addition, for the multiple other unit of the driving-cable assembly of the test for representing at above example, carry out dynamic efficiency test by mode described above.Specifically, divide three times (specifically at Life cycle duration of test, 200, before 000 loop around test, during and afterwards), at 23 DEG C around the route (as shown in figure 18) of axle A-1, measure the dynamic efficiency of the cable assembly (, cap holder part G, material 8 and isolator part D, material 4) representing in last column of above table.More particularly, in zero degree circulation place, carry out by following test 100,000 circulations place and 200,000 circulations place.Cable assembly has the length between 850mm and 1200mm.Result is more than 40% minimum value of test requires.Longer length is tended to have more inefficient.Cable assembly by fixed line securely in the code test fixture of the general cable route of simulation.The tension loading of 111N is applied to the gearbox end of the cable perpendicular with gearbox end accessory.The shift fork end of cable and shift fork end accessory are pulled by 15 circulation speed per minute perpendicularly, and record input load.Carry out computational efficiency value according to (load value output is divided by input load value) × 100%.By test requirements document: cable to be determined runs through 200,000 Life cycles tests and maintains 40% minimum efficiency (maintaining at least 40% efficiency).In current example, determine that the efficiency of cable assembly is:

At efficiency mean value=84.5% of 0 circulation place

Maximum value=85.8%

Minimum value=83.5%

At efficiency mean value=86.0% of 100,000 circulations place

Maximum value=87.5%

Minimum value=84.6%

At efficiency mean value=87.8% of 200,000 circulations place

Maximum value=90.6%

Minimum value=82.5%

Although described the present invention above about some exemplary embodiment, should be appreciated that, other embodiment, other use, its change and amendment will be obvious for those skilled in the art of known disclosure advantage.Thereby, will recognize, various modifications and changes will be obvious by these public affairs for those skilled in the art, and do not depart from the spirit and scope of the present invention narrated in the following claims.And it is interchangeable that embodiment described above is intended to, for example, one or more elements arbitrarily of embodiment can with any exchange of any other embodiment's element.In addition, following claims are intended to write into covering and drop on such change and the amendment in true spirit of the present invention and scope.Should be appreciated that, in the disclosure with in following claim, odd number indefinite article or definite article be (for example, " a ", " an ", " the ", etc.) use observe the traditional means at patent middle finger " at least one ", unless clear and definite by context in instantiation, term is intended to refer to clearly in this instantiation one and only one.Equally, term " comprising (comprising) " opens wide, and does not get rid of other article, feature, element etc.

Claims

1. a speed change cable assembly for Motor Vehicle, comprises in combination:

Conduit sub-component, the heart yearn that this conduit sub-component comprises conduit and extends through conduit,

Shift fork end sections, this shift fork end sections is connected on heart yearn, and

Gearbox end sections, this gearbox end sections is connected on heart yearn,

Wherein, conduit sub-component extends to gearbox end sections from shift fork end sections, and gearbox end sections comprises:

Heart yearn length adjuster, this heart yearn length adjuster limits isolator nest, and comprises:

Be arranged in the heart yearn regulator isolator of this isolator nest, this heart yearn regulator isolator forms boring, this boring has latch nest part and holder cap nest part, described heart yearn regulator isolator is formed by any material in silicone, thermoplastic elastomer (TPE) (TPE) and polyester type thermoplastic polyurethane compound, and

Holder cap, this holder cap is configured to partly be received by the holder cap nest of heart yearn regulator isolator, and there is latch end nest, this latch end nest is configured to receive and engage a part for latch, a part for this latch is received in the latch nest part of heart yearn regulator isolator, holder cap is formed by any material in Polyetherimide thermoplastic (PEI), nylon 6 thermoplastics (polyamide 6), nylon 6/6 thermoplastic (polyamide 6/6), and

End of conduit annex, this end of conduit annex comprises end of conduit annex isolator, this end of conduit annex isolator is formed by any material in thermoplastic elastomer (TPE) (TPE), polymerizing silicone compound, TPUE (TPU), and has at least tear strength of 10kN/m, wherein, at 100 of cable assembly, after 000 motion cycle, heart yearn length adjuster and the locking of end of conduit annex are put in place, 17.8N compressive load is applied on heart yearn, then travel indicator makes zero, then the tension loading of 17.8N is applied on heart yearn, then record the travel distance of heart yearn, heart yearn is advanced and is no more than following predetermined distance: the heart yearn for length below 850mm, and described predetermined distance is 1.3mm, heart yearn for length from 850mm to 1200mm, described predetermined distance is no more than 2.0mm, heart yearn for length from 1200mm to 2400mm, described predetermined distance is no more than 2.5mm, and new cable assembly is for 165 DEG C of cable strength tests of vehicle route, and new cable assembly soaked one hour before test at 165 DEG C, cable is by using actual vehicle or simulating actual vehicle and install according to the vehicle layout of purpose by means of suitable mount type frame or fixture, this vehicle layout comprises whole supports and attachment hardware, heart yearn loads five times by the tension loading of 667N, each lasting ten seconds, the compressive load of 333.8N is applied on heart yearn five times, each lasting ten seconds, the permanent change of the length of heart yearn will can not be measured, wherein, speed change cable assembly stable performance at 165 DEG C of described Motor Vehicle.

2. the speed change cable assembly of Motor Vehicle according to claim 1, wherein, after 100,000 motion cycle of cable assembly, latch nest part is when being attached to latch and needing the extraction force of the peaked measurement installing force of 130N and 82N minimum value in the time that latch removing.

3. the speed change cable assembly of Motor Vehicle according to claim 1, wherein, end of conduit annex isolator is formed by the polymerizing silicone compound that keeps its durometer value at 165 DEG C.

4. according to the speed change cable assembly of the Motor Vehicle described in any one in claim 1-3, wherein, heart yearn regulator isolator is formed by the material of polyester type thermoplastic polyurethane compound: described material has the shore hardness of 62D ± 3 that recorded by test method ASTM D-2240, and described material comprises the tensile strength of 37.9MPa, under 100% specific elongation 17.2MPa stretch modulus, under 300% specific elongation stretch modulus, 470% limit elongation, the flexural modulus of 275.9MPa and the tear strength of 178.3kN/m at 23 DEG C of 27.6MPa.

5. according to the speed change cable assembly of the Motor Vehicle described in any one in claim 1-3, wherein, the described polyester type thermoplastic polyurethane compound of heart yearn regulator isolator has the glass transition temperature of-37 DEG C that uses differential scanning calorimetry (DSC) test method measuring and the Vicat softening point of 152 DEG C that uses ASTMD-1525 test method measuring.

6. according to the speed change cable assembly of the Motor Vehicle described in any one in claim 1-3, wherein, holder cap is formed by following material: described material has about 25 of use ASTMD638 test method measuring, the tensile strength of 000Psi, use 3.0% the stretch percentage elongation in the time of fracture of ASTMD638 test method measuring, use 3.0% the stretch percentage elongation in the time of surrender of ASTMD638 test method measuring, and use 1 of ASTMD790 test method measuring, the flexural modulus of 250,000Psi.

7. according to the speed change cable assembly of the Motor Vehicle described in any one in claim 1-3, wherein, end of conduit annex isolator comprises the material that meets ASTM D2000M3GE508Z2.