CN105082925A - Stabilizer bar connecting rod and manufacturing method thereof and vehicle - Google Patents
Stabilizer bar connecting rod and manufacturing method thereof and vehicle Download PDFInfo
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- CN105082925A CN105082925A CN201510601585.7A CN201510601585A CN105082925A CN 105082925 A CN105082925 A CN 105082925A CN 201510601585 A CN201510601585 A CN 201510601585A CN 105082925 A CN105082925 A CN 105082925A
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- mobile jib
- head rod
- bulb joint
- pipe link
- bar connecting
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Abstract
The invention provides a stabilizer bar connecting rod and a manufacturing method thereof and a vehicle. The stabilizer bar connecting rod comprises a main rod, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are connected with the main rod. The first connecting rod is connected with the main rod through a first ball joint. The second connecting rod is connected with the main rod through a second ball joint. When the first connecting rod is located at the limit position and the second connecting rod is located at a matching position, the included acute angle formed between the projection, on a plane perpendicular to the axis of the main rod, of the axis of the first connecting rod and the projection, on a plane perpendicular to the axis of the main rod, of the axis of the second connecting rod is C; a difference value of a tangent value of A1 and a tangent value of A2 is compared with the tangent value of C to obtain a comparison result, and a swing extreme value W1 of the first ball joint is determined according to the comparison result; the first ball joint is manufactured according to the swing extreme value W1 of the first ball joint, so that the stabilizer bar connecting rod is obtained. The swing extreme value W1 of the first ball joint is closer to a true value, and the stabilizer bar connecting rod has better stability.
Description
Technical field
The present invention relates to vehicle arrangement field, in particular to a kind of stabilizer bar connecting bar and manufacture method thereof and vehicle.
Background technology
In the suspension system of vehicle, stabilizer bar connecting bar is connected with shock absorber (or swing arm etc.) and stabilizer rod respectively by two bulb joints.As shown in Figure 1, stabilizer bar connecting bar comprises mobile jib 10 and the head rod 20 be connected with mobile jib 10 by bulb joint and the second pipe link 30.This wherein, bulb joint be designed to most important part, i.e. the swing extreme value of bulb joint, namely to have enough pendulum angles to ensure the normal operation of vehicle, prevent mobile jib 10 to be out of shape, the pendulum angle of design can not be made again too large and the risk that bulb joint had deviate from from ball seat.
In prior art in the design of stabilizer bar connecting bar can in CATIA kinematic mechanism analogue measurement, but because the constraint in kinematic mechanism cannot simulating actual conditions completely, the result of analogue measurement is caused to differ larger with actual demand, the swing extreme value of the bulb joint obtained is not accurate enough, therefore directly can not be used as the design considerations of stabilizer bar connecting bar.
Summary of the invention
Main purpose of the present invention is to provide a kind of stabilizer bar connecting bar and manufacture method thereof and vehicle, to solve the not accurate enough problem of design that employing analogy method of the prior art carries out stabilizer bar connecting bar.
To achieve these goals, according to an aspect of the present invention, provide a kind of manufacture method of stabilizer bar connecting bar, stabilizer bar connecting bar comprises mobile jib and the head rod that is connected with mobile jib and the second pipe link, head rod is connected with mobile jib by the first bulb joint, second pipe link is connected with mobile jib by the second bulb joint, and the first start bit that head rod has perpendicular to mobile jib is put, and the second pipe link has the second reference position perpendicular to mobile jib; Head rod has relative first start bit and puts the end position reaching maximum offset, and when head rod is in the state being positioned at end position, the second pipe link is positioned at cooperation position; Manufacture method comprises: when head rod is positioned at end position, and the complementary angle of the maximum acute angle of the axis of head rod and the axis of mobile jib is A1; When the second pipe link is positioned at cooperation position, the complementary angle of the maximum acute angle of the axis of the second pipe link and the axis of mobile jib is A2; When head rod is positioned at end position and the second pipe link is positioned at cooperation position, the acute angle between the projection in the plane of the axis perpendicular to mobile jib of the axis of the projection in the plane of the axis perpendicular to mobile jib of the axis of head rod and the second pipe link is C; Compare the tangent value of A1 and the difference of the tangent value of A2 and the tangent value of C and obtain comparative result, determine the swing extreme value W1 of the first bulb joint according to comparative result; The first bulb joint is manufactured to obtain stabilizer bar connecting bar according to the swing extreme value W1 of the first bulb joint.
Further, determine that the swing extreme value W1 of the first bulb joint comprises according to comparative result: as tg2A1 >=tg2A2+tg2C, swing extreme value W1 and the A1 of the first bulb joint is equal.
Further, determine that the swing extreme value W1 of the first bulb joint comprises according to comparative result: as tg2A2 >=tg2A1+tg2C, swing extreme value W1 and the A2 of the first bulb joint is equal.
Further, determine that the swing extreme value W1 of the first bulb joint comprises according to comparative result: as │ tg2A1-tg2A2 │≤tg2C, the swing extreme value W1 of the first bulb joint draws according to following formula:
tg2W1＝tg2θ+tg2A1；
θ draws according to following formula:
tg2θ+tg2A1＝tg2(C-θ)+csc2(C-θ)tg2A2。
Further, the swing extreme value W2 of the second bulb joint is identical with the swing extreme value W1 of the first bulb joint.
According to a further aspect in the invention, provide a kind of stabilizer bar connecting bar, comprise mobile jib and the head rod that is connected with mobile jib and the second pipe link, head rod is connected with mobile jib by bulb joint; It is characterized in that, stabilizer bar connecting bar is by the manufacture method manufacture of above-mentioned stabilizer bar connecting bar.
Further, the bearing of trend of the second reference position of the bearing of trend put of the first start bit of head rod and the second pipe link parallels.
Further, it is characterized in that, the motion in the plane of the axis perpendicular to mobile jib of head rod and the second pipe link links mutually.
According to a further aspect in the invention, provide a kind of vehicle, comprise suspension system, suspension system comprises stabilizer bar connecting bar, it is characterized in that, stabilizer bar connecting bar is above-mentioned stabilizer bar connecting bar or obtains according to the manufacture method manufacture of above-mentioned stabilizer bar connecting bar.
Further, suspension system comprises bumper and stabilizer rod, and the head rod of stabilizer bar connecting bar is connected bumper and stabilizer rod respectively with the second pipe link; And/or suspension system comprises swing arm and stabilizer rod, the head rod of stabilizer bar connecting bar is connected swing arm and stabilizer rod respectively with the second pipe link.
Apply technical scheme of the present invention, compare the analogue measurement carried out in CATIA kinematic mechanism and the data obtained are more accurate, therefore the swing extreme value W1 of the first bulb joint is more close to actual value, accuracy is improved, and is designed and the stabilizer bar connecting bar produced has better comformability and stability by such scheme.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram in xz plane of the embodiment according to stabilizer bar connecting bar of the present invention;
Fig. 2 shows the schematic diagram along x-axis negative direction in yz plane of the embodiment according to stabilizer bar connecting bar of the present invention;
Fig. 3 shows the schematic diagram along x-axis positive dirction in yz plane of the embodiment according to stabilizer bar connecting bar of the present invention; And
Fig. 4 shows the schematic diagram according to the angle C between the projection of the head rod of embodiment in yz plane of stabilizer bar connecting bar of the present invention and the projection of the second pipe link.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
According to an aspect of the present invention, provide a kind of manufacture method of stabilizer bar connecting bar, wherein stabilizer bar connecting bar as shown in Figures 1 to 4, this stabilizer bar connecting bar comprises mobile jib 10 and the head rod 20 that is connected with mobile jib 10 and the second pipe link 30, head rod 20 is connected with mobile jib 10 by the first bulb joint, second pipe link 30 is connected with mobile jib 10 by the second bulb joint, the first start bit that head rod 20 has perpendicular to mobile jib 10 is put, and the second pipe link 30 has the second reference position perpendicular to mobile jib 10; Head rod 20 has relative first start bit and puts the end position reaching maximum offset, and when head rod 20 is in the state being positioned at end position, the second pipe link 30 is positioned at cooperation position; When head rod 20 is positioned at end position, the complementary angle of the maximum acute angle of the axis of head rod 20 and the axis of mobile jib 10 is A1; When the second pipe link 30 is positioned at cooperation position, the complementary angle of the maximum acute angle of the axis of the second pipe link 30 and the axis of mobile jib 10 is A2; When head rod 20 is positioned at end position and the second pipe link 30 is positioned at cooperation position, the acute angle between the projection in the plane of the axis perpendicular to mobile jib 10 of the axis of the projection in the plane of the axis perpendicular to mobile jib 10 of the axis of head rod 20 and the second pipe link 30 is C; Compare the tangent value of A1 and the difference of the tangent value of A2 and the tangent value of C and obtain comparative result, determine the swing extreme value W1 of the first bulb joint according to comparative result; The first bulb joint is manufactured to obtain stabilizer bar connecting bar according to the swing extreme value W1 of the first bulb joint.
As can be seen from such scheme, the swing extreme value W1 of the first bulb joint is determined by the relation of multiple numerical value, comprise when head rod 20 is positioned at end position, the complementary angle of the maximum acute angle of the axis of head rod 20 and the axis of mobile jib 10 is A1, when the second pipe link 30 is positioned at cooperation position, the complementary angle of the maximum acute angle of the axis of the second pipe link 30 and the axis of mobile jib 10 is A2, and when head rod 20 is positioned at end position and the second pipe link 30 is positioned at cooperation position, acute angle between the projection in the plane of the axis perpendicular to mobile jib 10 of the axis of the projection in the plane of the axis perpendicular to mobile jib 10 of the axis of head rod 20 and the second pipe link 30 is C, and above-mentioned A1, the value of A2 and C all for by head rod 10 and the second pipe link 20 reality be in corresponding position time obtain, compare the analogue measurement carried out in CATIA kinematic mechanism and the data obtained are more accurate, therefore the swing extreme value W1 of the first bulb joint is more close to actual value, accuracy is improved, to be designed by such scheme and the stabilizer bar connecting bar produced has better comformability and stability.
Preferably, the swing extreme value W2 of the second bulb joint is identical with the swing extreme value W1 of the first bulb joint.Owing to having certain linkage between head rod 20 and the second pipe link 30, therefore W2 and W1 is equal.Therefore, the swing extreme value W=W1=W2 of the bulb joint of stabilizer bar connecting bar.
Head rod 20 has and only has one degree of freedom after car load assembles, the rotary freedom of the line namely around the center of the first bulb joint and the second bulb joint.In like manner, the second pipe link 30 also has one degree of freedom.It is pointed out that in the embodiment shown in Fig. 1 to 4, the line at the center of the first bulb joint and the second bulb joint and the dead in line of mobile jib 10.
Based on above demonstration, set up system of axes: the origin of coordinates is the center of arbitrary bulb joint, be the center of the first bulb joint in FIG, x-axis is rotation axis, be the axis of mobile jib 10 in the present embodiment, forward is the direction pointing to another bulb joint from initial point; Z-axis is the axis direction of ball seat, the bearing of trend namely when head rod 20 is in reference position, and forward is the open end pointing to ball seat from initial point; Y-axis is determined by left hand helix rule.
Based on above system of axes, the swing extreme value W2 of the swing extreme value W1 of head rod 20 and the second pipe link 30 is projected in xz plane and yz plane respectively, form β 1, α 1 and β 2, α 2.Its mathematical relation has:
Tg
2w1=tg
2α 1+tg
2β 1, is designated as formula 1;
Tg
2w2=tg
2α 2+tg
2β 2, is designated as formula 2.
Based on above system of axes, the swing extreme value W2 of the second bulb joint and the swing extreme value W1 of the first bulb joint projects in yz plane respectively, and yz plane obtains the angle C between the projection of the projection of the axis of the first bulb joint and the axis of the second bulb joint being.
Based on the degree of freedom mentioned in above-mentioned, angle [alpha] 1 and α 2 can compensate mutually; And β 1 and β 2 can not compensate mutually.There is following special case: as β 1=β 2=0, only need C≤2W; But as α 1=α 2=0, β 1≤W must be met, and β 2≤W.
Measure the included angle A 1' of the axis of mobile jib 10 and the axis of the first bulb joint, and make A1=│ A1'-90 ° of │, namely A1 is the complementary angle of the maximum acute angle of the axis of head rod 20 and the axis of mobile jib 10; Measure the included angle A 2' of the axis of mobile jib 10 and the axis of the first bulb joint, and make A2=│ A2'-90 ° of │, namely A2 is the complementary angle of the maximum acute angle of the axis of the second pipe link 30 and the axis of mobile jib 10.
Based on the degree of freedom mentioned in above-mentioned, do not limit this direction degree of freedom of stabilizer bar connecting bar.Setting: xz plane is principal plane, and the plane that the axis of mobile jib 10 and the first bulb joint is formed is plane 1, and the plane that the axis of mobile jib 10 and the first bulb joint is formed is plane 2.When principal plane and plane 1 overlap, have: α 1=0, β 1=A1=W1.Equally, when principal plane and plane 2 overlap, have: α 2=0, β 2=A2=W2.
When principal plane rotates after θ angle to plane 2 direction from plane 1, have: α 1=θ, tg β 1=csc θ tgA1.By above-mentioned substitution formula 1, then obtain:
Tg
2w1=tg
2θ+csc
2θ tg
2a1, is designated as formula 3.
When principal plane rotates after θ angle to plane 2 direction from plane 1, have: α 2=C-θ, tg β 2=csc (C-θ) tgA2.By above-mentioned substitution formula 2, then obtain:
Tg
2w2=tg
2(C-θ)+csc
2(C-θ) tg
2a2, is designated as formula 4.
Make W1=W2, now the pendulum angle of the first bulb joint and the second bulb joint all makes full use of, then W=W1=W2.
Preferably, obtain comparative result at the relatively difference of the tangent value of A1 and the tangent value of A2 and the tangent value of C, determine in this step of swing extreme value W1 of the first bulb joint according to comparative result, comprise following three kinds of situations:
Work as tg
2a1>=tg
2a2+tg
2during C, swing extreme value W1 and the A1 of the first bulb joint is equal.
Work as tg
2a2>=tg
2a1+tg
2during C, swing extreme value W1 and the A2 of the first bulb joint is equal.
As │ tg
2a1-tg
2a2 │≤tg
2during C, the swing extreme value W1 of the first bulb joint draws according to following formula:
tg
2W1＝tg
2θ+tg
2A1；
θ draws according to following formula:
tg
2θ+tg
2A1＝tg
2(C-θ)+csc
2(C-θ)tg
2A2。
Particularly, head rod 20 and second pipe link 30 of in kinematic mechanism, simulating stabilizer bar connecting bar move to end position, and under being in this state; In this condition, in yz plane, the angle C between the projection of measuring the projection of the axis of the first bulb joint and the axis of the second bulb joint; In this condition, measure the included angle A 1 ' between the axis of the first bulb joint and the axis of mobile jib 10 respectively, and the included angle A 2 ' between the axis of the second bulb joint axis and mobile jib 10; Calculate A1=│ A1'-90 ° of │, A2=│ A2'-90 ° of │; According to the relation between the value of A1, A2 and C, there are following three kinds of situations, and determine the swing extreme value W of the bulb joint of stabilizer bar connecting bar in varied situations:
Work as tg
2a1>=tg
2a2+tg
2during C, W=A1;
Work as tg
2a2>=tg
2a1+tg
2during C, W=A2;
As │ tg
2a1-tg
2a2 │≤tg
2during C, if principal plane is by after rotating θ angle with plane 1 overlapping positions to plane 2 direction, the pivot angle of the first bulb joint and the second bulb joint is equal, i.e. W1=W2, substitutes into formula 3 and formula 4:
tg
2θ+tg
2A1＝tg
2(C-θ)+csc
2(C-θ)tg
2A2，
Solve above θ, and substitute into tg
2w1=tg
2θ+tg
2a1, tries to achieve W=W1.
Needs particularly point out, the method is applicable to the stabilizer bar connecting bar of the axis of mobile jib 10 and the center superposition of bulb joint, according to continuing based on this method to calculate, and directly this method can be applied when some particular case when the axis of mobile jib 10 does not overlap with the center of bulb joint.
According to another aspect of the present invention, additionally provide a kind of stabilizer bar connecting bar, as shown in Figures 1 to 4, this stabilizer bar connecting bar comprises mobile jib 10 and the head rod 20 that is connected with mobile jib 10 and the second pipe link 30, and head rod 20 is connected with mobile jib 10 by bulb joint; Stabilizer bar connecting bar is by the manufacture method manufacture of above-mentioned stabilizer bar connecting bar.
Preferably, as shown in Figure 1, the bearing of trend of the second reference position of the bearing of trend put of the first start bit of head rod 20 and the second pipe link 30 parallels.
Preferably the motion in the plane of the axis perpendicular to mobile jib 10 of head rod 20 and the second pipe link 30 links mutually.
According to another aspect of the present invention, additionally provide a kind of vehicle, comprise suspension system, suspension system comprises stabilizer bar connecting bar, and stabilizer bar connecting bar is above-mentioned stabilizer bar connecting bar or obtains according to the manufacture method manufacture of above-mentioned stabilizer bar connecting bar.
The bulb joint of the stabilizer bar connecting bar obtained according to the manufacture method manufacture of stabilizer bar connecting bar of the present invention has more adaptive swing extreme value, the pipe link connected by bulb joint has good degree of freedom, mobile jib 10 will be caused not stressed bending because of the swing extreme value of bulb joint, also coming off of pipe link can not be caused because the swing extreme value of bulb joint is excessive, therefore stabilizer bar connecting bar is more reliability and durability, makes the suspension system of vehicle safer, reliable.
Preferably, described suspension system comprises bumper and stabilizer rod, and the head rod 20 of stabilizer bar connecting bar is connected bumper and stabilizer rod respectively with the second pipe link 30; And/or suspension system comprises swing arm and stabilizer rod, the head rod 20 of stabilizer bar connecting bar is connected swing arm and stabilizer rod respectively with the second pipe link 30.
Wherein, on the front suspension system of vehicle, sense of stability pipe link is for connecting bumper and stabilizer rod; And on the rear-suspension system of vehicle, sense of stability pipe link is for connecting swing arm and stabilizer rod.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the manufacture method of a stabilizer bar connecting bar, described stabilizer bar connecting bar comprises mobile jib (10) and the head rod (20) that is connected with described mobile jib (10) and the second pipe link (30), described head rod (20) is connected with described mobile jib (10) by the first bulb joint, described second pipe link (30) is connected with described mobile jib (10) by the second bulb joint, the first start bit that described head rod (20) has perpendicular to described mobile jib (10) is put, described second pipe link (30) has the second reference position perpendicular to described mobile jib (10), described head rod (20) has relatively described first start bit and puts the end position reaching maximum offset, when described head rod (20) is in the state being positioned at described end position, described second pipe link (30) is positioned at cooperation position, it is characterized in that, described manufacture method comprises:
When described head rod (20) is positioned at described end position, the complementary angle of the maximum acute angle of the axis of described head rod (20) and the axis of described mobile jib (10) is A1;
When described second pipe link (30) is positioned at described cooperation position, the complementary angle of the maximum acute angle of the axis of described second pipe link (30) and the axis of described mobile jib (10) is A2;
When described head rod (20) is positioned at described end position and described second pipe link (30) is positioned at described cooperation position, the acute angle between the projection in the plane of the axis perpendicular to described mobile jib (10) of the axis of the projection in the plane of the axis perpendicular to described mobile jib (10) of the axis of described head rod (20) and described second pipe link (30) is C;
The difference of the tangent value of more described A1 and the tangent value of described A2 and the tangent value of described C obtain comparative result, determine the swing extreme value W1 of described first bulb joint according to described comparative result;
Described first bulb joint is manufactured to obtain described stabilizer bar connecting bar according to the swing extreme value W1 of described first bulb joint.
2. manufacture method according to claim 1, is characterized in that, determines that the swing extreme value W1 of described first bulb joint comprises according to described comparative result:
Work as tg
2a1>=tg
2a2+tg
2during C, the swing extreme value W1 of described first bulb joint is equal with described A1.
3. manufacture method according to claim 1, is characterized in that, determines that the swing extreme value W1 of described first bulb joint comprises according to described comparative result:
Work as tg
2a2>=tg
2a1+tg
2during C, the swing extreme value W1 of described first bulb joint is equal with described A2.
4. manufacture method according to claim 1, is characterized in that, determines that the swing extreme value W1 of described first bulb joint comprises according to described comparative result:
As │ tg
2a1-tg
2a2 │≤tg
2during C, the swing extreme value W1 of described first bulb joint draws according to following formula:
tg
2W1＝tg
2θ+tg
2A1；
Described θ draws according to following formula:
tg
2θ+tg
2A1＝tg
2(C-θ)+csc
2(C-θ)tg
2A2。
5. manufacture method according to any one of claim 1 to 4, is characterized in that, the swing extreme value W2 of described second bulb joint is identical with the swing extreme value W1 of described first bulb joint.
6. a stabilizer bar connecting bar, the head rod (20) comprising mobile jib (10) and be connected with described mobile jib (10) and the second pipe link (30), described head rod (20) is connected with described mobile jib (10) by bulb joint; It is characterized in that, described stabilizer bar connecting bar is by the manufacture method manufacture of the stabilizer bar connecting bar according to any one of claim 1 to 5.
7. stabilizer bar connecting bar according to claim 6, is characterized in that, the bearing of trend of the second reference position of the bearing of trend that the first start bit of described head rod (20) is put and described second pipe link (30) parallels.
8. stabilizer bar connecting bar according to claim 6, it is characterized in that, described head rod (20) links mutually with the motion in the plane of the axis perpendicular to described mobile jib (10) of described second pipe link (30).
9. a vehicle, comprise suspension system, described suspension system comprises stabilizer bar connecting bar, it is characterized in that, the manufacture method manufacture of the stabilizer bar connecting bar of described stabilizer bar connecting bar according to any one of claim 6 to 8 or stabilizer bar connecting bar according to any one of claim 1 to 5 obtains.
10. vehicle according to claim 9, is characterized in that,
Described suspension system comprises bumper and stabilizer rod, and the head rod (20) of described stabilizer bar connecting bar is connected described bumper and described stabilizer rod respectively with the second pipe link (30); And/or,
Described suspension system comprises swing arm and stabilizer rod, and the head rod (20) of described stabilizer bar connecting bar is connected described swing arm and described stabilizer rod respectively with the second pipe link (30).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510601585.7A CN105082925B (en) | 2015-09-18 | 2015-09-18 | Stabilizer bar connecting bar and its manufacture method and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120021839A (en) * | 2010-08-19 | 2012-03-09 | 현대모비스 주식회사 | Strut mounting type stabilizer bar device |
| JP2012108768A (en) * | 2010-11-18 | 2012-06-07 | Toyota Motor Corp | Suspension behavior estimation method |
| CN104097477A (en) * | 2014-06-05 | 2014-10-15 | 厦门理工学院 | Length calculation method for upper guide arm and lower guide arm of double-cross-arm independent suspension |
| CN104691269A (en) * | 2013-12-06 | 2015-06-10 | 广州汽车集团股份有限公司 | Method and system for designing stabilizer bar of automotive suspension |
-
2015
- 2015-09-18 CN CN201510601585.7A patent/CN105082925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120021839A (en) * | 2010-08-19 | 2012-03-09 | 현대모비스 주식회사 | Strut mounting type stabilizer bar device |
| JP2012108768A (en) * | 2010-11-18 | 2012-06-07 | Toyota Motor Corp | Suspension behavior estimation method |
| CN104691269A (en) * | 2013-12-06 | 2015-06-10 | 广州汽车集团股份有限公司 | Method and system for designing stabilizer bar of automotive suspension |
| CN104097477A (en) * | 2014-06-05 | 2014-10-15 | 厦门理工学院 | Length calculation method for upper guide arm and lower guide arm of double-cross-arm independent suspension |
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Effective date of registration: 20180427 Address after: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee after: Beijing treasure Car Co., Ltd. Address before: 102206 Beiqi Futian Motor Company Limited, law and intellectual property department, Shayang Road, Shahe Town, Changping District, Beijing Patentee before: Beiqi Futian Automobile Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 102206, Beijing, Shahe, Changping District Town, Sha Yang Road, Lao Wan Village North Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: No. 188, Miyun District, Miyun District, Beijing, Beijing Patentee before: Beijing treasure Car Co., Ltd. |