CN103728975A - Road slope simulation test stand for hardware-in-the-loop test of electrical park brake system - Google Patents
Road slope simulation test stand for hardware-in-the-loop test of electrical park brake system Download PDFInfo
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- CN103728975A CN103728975A CN201410026812.3A CN201410026812A CN103728975A CN 103728975 A CN103728975 A CN 103728975A CN 201410026812 A CN201410026812 A CN 201410026812A CN 103728975 A CN103728975 A CN 103728975A
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Abstract
The invention relates to a road slope simulation test stand for a hardware-in-the-loop test of an electrical park brake system and belongs to the electromechanical field. The road slope simulation test stand comprises a supporting frame assembly, a stepping motor, a coupler I, a coupler II, a slope platform assembly, a photoelectric encoder and limit switches, wherein the stepping motor is arranged on the left side of the supporting frame assembly and connected with the slope platform assembly through the coupler I; the slope platform assembly is arranged in the middle of the supporting frame assembly and connected with the photoelectric encoder through the coupler II; the photoelectric encoder is arranged on the right side of the supporting frame assembly; the limit switches are arranged on two sides of the supporting frame assembly. The road slope simulation test stand has the advantages that the slope value can be controlled in real time, and slopes of the road slope simulation test stand can be changed in real time according to test requirements of the electrical park brake system. Feedback is achieved through the photoelectric encoder, and therefore, control precision is high and can reach +/- 0.1 degree. Coaxiality is high, and key grooves and the couplers can ensure coaxiality of the center axis. By means of the limit protection devices, damage to the test stand caused by failure of a control program can be effectively prevented. Furthermore, the road slope simulation test stand is strong in practicability.
Description
Technical field
The present invention relates to dynamo-electric field; being particularly related to the road grade simulator stand of a kind of electronic brake system hardware in ring test, is that a kind of stepper motor that adopts controls and adopt the photoelectric encoder Real-time Feedback gradient and employing limit switch to carry out the test unit of hardware protection in real time.
Background technology
Along with the continuous progress of automotive engineering, the application of wire control technology (X-by-Wire) on automobile is more and more extensive.As the one of line control brake system, electronic brake system (EPB) refers to that the long time property braking function by the provisional braking in driving process and after stopping combines, and by electronic control mode, is realized the technology of stopping brake.
At present, domestic for electronic brake system research and development with test gradient simulator stand used and be mostly manual, can not control in real time; And the gradient precision reaching is lower, the performance that can not accurately test electronic brake system; In addition, this class testing table does not have limiting and protecting device, easily causes the damage to testing table in process of the test.
Summary of the invention
The object of the present invention is to provide the road grade simulator stand of a kind of electronic brake system hardware in ring test, overcome the problem that existing testing table can not be controlled in real time, precision is low, right alignment is poor, the road grade simulator stand that provide a kind of high precision, high-axiality, can control in real time.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
Electronic brake system hardware is at the road grade simulator stand of ring test, comprise bracket assembly, stepper motor 2, shaft coupling I, II, gradient platform assembly, photoelectric encoder and limit switch, described stepper motor is fixed by screws on the electric machine support on bracket assembly right side, shaft coupling I links together the left side of the output shaft of stepper motor and gradient platform assembly central shaft, shaft coupling II is connected the right side of gradient platform assembly central shaft with the input shaft of photoelectric encoder, limit switch is fixed on the both sides of bracket assembly by limit base and screw.
Described bracket assembly comprises base 1, electric machine support 4, bearing I 6, bearing bridge I 7, bearing II 11, bearing bridge II 12, scrambler support 14, key I ~ IV 17,18,22,23, and described electric machine support 4, bearing bridge I 7, bearing bridge II 12 and scrambler support 14 adopt the mode of interference fit to be arranged on base 1 by key IV 23, key III 22, key II 18 and key I 17 respectively; Bearing I 6 and bearing II 11 adopt deep groove ball bearing, and bearing bridge I 7 and bearing bridge II 12 slight interference coordinate with bearing I 6 and bearing II 11 assembles.
Described stepper motor 2 is located by motor seam 24 and the little clearance fit in electric machine support hole 26 on electric machine support 4, by four screw I 3, stepper motor 2 is fixed on electric machine support 4.
Described shaft coupling I is plum coupling 5, in the central shaft 8 that connects motor output shaft 25 and gradient platform assembly, guarantees right alignment.
The spring coupling 13 that described shaft coupling II is aluminium alloy, links together the transmitter shaft of central shaft 8 30 and the input shaft 32 of photoelectric encoder 15.
Described gradient platform assembly comprises central shaft 8, flat board 9 and screw II 10, mills out the surface level that a flatness is 0.02mm, and be drilled with three holes on described central shaft 8; The flatness of dull and stereotyped 9 upper and lower two parallel surfaces is 0.02mm, dull and stereotyped 9 are fixed in the plane 28 of central shaft 8 by screw II 10, the left side shaft shoulder 27 of central shaft 8 is connected by 6 contacts of slight interference fit system and bearing I, and the right side shaft shoulder 29 of central shaft 8 assembles by slight interference fit system and bearing II 11.
Described photoelectric encoder 15 is located by scrambler seam 31 and the little clearance fit of scrambler support seam 33 on scrambler support 14, by four screw III 16, photoelectric encoder 15 is fixed on scrambler support 14.
Described limit switch 19 is fixed on limit switch base 21 by two screw IV 20, and limit switch base 21 is fixed on below bearing bridge I 7 by two plus screw 34.
Beneficial effect of the present invention is: the value of slope of road grade simulator stand of the present invention can be controlled in real time, can be according to the gradient of the real-time change road grade simulator stand of the test request of electronic brake system.Employing photoelectric encoder feedback, control accuracy is high, can reach ± 0.1 °.Right alignment is high, adopts keyway and shaft coupling to guarantee the right alignment of central shaft.Limiting and protecting device is housed, can effectively prevents that the testing table that control program caused while losing efficacy from damaging.Practical.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and illustrative example of the present invention and explanation thereof are used for explaining the present invention, do not form inappropriate limitation of the present invention.
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is location and the fixed form schematic diagram of stepper motor of the present invention and electric machine support;
Fig. 3 is the structural representation of gradient platform assembly of the present invention;
Fig. 4 is location and the fixed form schematic diagram of photoelectric encoder of the present invention and scrambler support;
Fig. 5 is limit switch fixed form schematic diagram of the present invention.
In figure: 1, base; 2, stepper motor; 3, screw I; 4, electric machine support; 5, plum coupling; 6, bearing I; 7, bearing bridge I; 8, central shaft 9, flat board; 10, screw II; 11, bearing II; 12, bearing bridge II; 13, spring coupling; 14, scrambler support; 15, photoelectric encoder; 16, screw III; 17, key I; 18, key II; 19, limit switch; 20, screw IV; 21, limit switch base; 22, key III; 23, key IV; 24, motor seam; 25, motor output shaft; 26, electric machine support hole; 27, the left side shaft shoulder; 28, plane; 29, the right side shaft shoulder; 30, transmitter shaft; 31, scrambler seam; 32, scrambler input shaft; 33, scrambler support seam; 34, plus screw.
Embodiment
Below in conjunction with accompanying drawing, further illustrate detailed content of the present invention and embodiment thereof.
Referring to Fig. 1, electronic brake system hardware of the present invention is at the road grade simulator stand of ring test, comprise bracket assembly, stepper motor 2, shaft coupling I, II, gradient platform assembly, photoelectric encoder and limit switch, described stepper motor is fixed by screws on the electric machine support on bracket assembly right side, shaft coupling I links together the left side of the output shaft of stepper motor and gradient platform assembly central shaft, shaft coupling II is connected the right side of gradient platform assembly central shaft with the input shaft of photoelectric encoder, limit switch is fixed on the both sides of bracket assembly by limit base and screw.
Described bracket assembly comprises base 1, electric machine support 4, bearing I 6, bearing bridge I 7, bearing II 11, bearing bridge II 12, scrambler support 14, key I ~ IV 17,18,22,23, and described electric machine support 4, bearing bridge I 7, bearing bridge II 12 and scrambler support 14 adopt the mode of interference fit to be arranged on base 1 by key IV 23, key III 22, key II 18 and key I 17 respectively; Bearing I 6 and bearing II 11 adopt deep groove ball bearing, and model is 6206-2RS, and bearing bridge I 7 and bearing bridge II 12 adopt basic shaft system processing, and are coordinated with bearing I 6 and bearing II 11 and assembled by φ 60P7/h6 slight interference; Electric machine support 4 adopts basic shaft system processing according to the seam diameter of stepper motor 2.Scrambler support 14 adopts basic shaft system processing according to the seam diameter of photoelectric encoder 15.
Described stepper motor 2 adopts the little clearance fit of φ 57G7/h6 location by motor seam 24 and the electric machine support hole 26 on electric machine support 4, by four screw I 3, stepper motor 2 is fixed on electric machine support 4.
Described shaft coupling I is plum coupling 5, in the central shaft 8 that connects motor output shaft 25 and gradient platform assembly, guarantees right alignment.
The spring coupling 13 that described shaft coupling II is aluminium alloy, links together the transmitter shaft of central shaft 8 30 and the input shaft 32 of photoelectric encoder 15.
Described gradient platform assembly comprises central shaft 8, flat board 9 and screw II 10, mills out the surface level that a flatness is 0.02mm, and be drilled with three holes on described central shaft 8; The flatness of dull and stereotyped 9 upper and lower two parallel surfaces is 0.02mm, dull and stereotyped 9 are fixed in the plane 28 of central shaft 8 by screw II 10, the left side shaft shoulder 27 of central shaft 8 is connected by 6 contacts of φ 30H7/p6 slight interference fit system and bearing I, and the right side shaft shoulder 29 of central shaft 8 assembles by φ 30H7/p6 slight interference fit system and bearing II 11.
The model B-JXW-13-GF-C5 of described photoelectric encoder 15, photoelectric encoder 15 adopts the little clearance fit of φ 30G7/h6 location by scrambler seam 31 and the scrambler support seam 33 on scrambler support 14, by four screw III 16, photoelectric encoder 15 is fixed on scrambler support 14.
The model of described limit switch 19 is XZ-15GW-B, and it is fixed on limit switch base 21 by two screw IV 20, and limit switch base 21 is fixed on below bearing bridge I 7 by two plus screw 34.
According to said structure, base 1 is contacted and is connected in the assembling mode of interference fit by key IV 23 with electric machine support 4.Base 1 is contacted and is connected in the assembling mode of interference fit by key III 22 with bearing bridge I 7.Base 1 is contacted and is connected in the assembling mode of interference fit by key II 18 with bearing bridge II 12.Base 1 is contacted and is connected in the assembling mode of interference fit by key I 17 with scrambler support 14.Bearing I 6 adopts φ 60P7/h6 slight interference fit system to contact with bearing bridge I 7 to be connected.Bearing II 11 adopts φ 60P7/h6 slight interference fit system to contact with bearing bridge II 12 to be connected.Stepper motor 2 is located with the little gap fiting mode of φ 57G7/h6 by motor seam 24 and electric machine support hole 26 with electric machine support 4, and carries out screw connection by four screw I 3.
As shown in Figure 2, plum coupling 5 contacts connected mode by face stepper motor output shaft 25 and the left side shaft shoulder 27 of central shaft 8 is linked together, and while absorbing vibration, compensating axial deviation and maintenance right alignment.The left side shaft shoulder 27 of central shaft 8 adopts φ 30H7/p6 slight interference fit system to be connected with the 6 inner hole surface contacts of bearing I.The right side shaft shoulder 29 of central shaft 8 adopts φ 30H7/p6 slight interference fit system to be connected with the 11 inner hole surface contacts of bearing II.
As shown in Figure 3, in the plane 28 of flat board 9 and central shaft 8, respectively have three threaded holes, three screw II 10 are fixed together flat board 9 and central shaft 8, form gradient platform assembly.Spring coupling 13 contacts connected mode by face and clamps the transmitter shaft 30 of central shaft 8 and the scrambler input shaft 32 of photoelectric encoder 15, the transmitter shaft of central shaft 8 30 and the scrambler input shaft 32 of photoelectric encoder 15 are linked together, and while absorbing vibration, compensating axial deviation and maintenance right alignment.The location of photoelectric encoder 15 and scrambler support 14 and connected mode are as shown in Figure 4, the scrambler seam 31 of photoelectric encoder 15 adopts the little gap fiting mode of φ 30G7/h6 location with the scrambler support seam 33 on scrambler support 14, and four screw III 16 realize photoelectric encoder 15 and are connected with scrambler support 14 screws.As shown in Figure 5, limit switch 19 is fixed on limit switch base 21 by two screw IV 20.Limit switch base 21 is fixed in bearing bridge I 7 by two plus screw 34.Can realize the adjusting of simulating gradient scope by the height that regulates limit switch base 21 to be arranged in bearing bridge I 7.
As shown in Figure 1, stepper motor 2 is accepted to make motor output shaft 25 around self axis rotation after control signal, the rotation of the motor output shaft 25 of stepper motor 2 passes to the central shaft 8 of gradient platform assembly by coupled plum coupling 5, thereby drives central shaft 8 around self axis rotation.The rotation of central shaft 8 is driving with plane 28 and is rotating by the fixing flat board 9 of screw II 10, thus can be real-time gradient signal is provided.Central shaft 8 passes to the scrambler input shaft 32 of photoelectric encoder 15 by the spring coupling 13 being connected with its transmitter shaft 30 around the rotation of self axis.The scrambler input shaft 32 of realizing photoelectric encoder 15 keeps synchronizeing around the rotation of self axis around the rotation of self axis and central shaft 8.Light becomes the gradient signal that the flat board 9 of the real-time feedback gradient platform assembly of scrambler 15 angle of rotating according to its scrambler input shaft 32 provides.When the control program " race flies " of stepper motor 2, the motor output shaft 25 of stepper motor 2 can ceaselessly rotate, thereby drives central shaft 8 and dull and stereotyped 9 ceaselessly to rotate, and can obtain testing table and measured piece causes damage.In order to prevent the generation of this situation, the present invention adopts limit switch 19 to carry out spacing control to dull and stereotyped 9 angles of rotating.Turn to extreme angles and while triggering limit switch 19, the enable signal of 19 cut-out stepper motors 2 of limit switch, stops operating the motor output shaft 25 of stepper motor motor 2, to reach the object of protection test platform when dull and stereotyped 9.
The foregoing is only preferred embodiment 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.All any modifications made for the present invention, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (8)
1. an electronic brake system hardware is at the road grade simulator stand of ring test, it is characterized in that: comprise bracket assembly, stepper motor (2), shaft coupling I, II, gradient platform assembly, photoelectric encoder and limit switch, described stepper motor is fixed by screws on the electric machine support on bracket assembly right side, shaft coupling I links together the left side of the output shaft of stepper motor and gradient platform assembly central shaft, shaft coupling II is connected the right side of gradient platform assembly central shaft with the input shaft of photoelectric encoder, limit switch is fixed on the both sides of bracket assembly by limit base and screw.
2. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: described bracket assembly comprises base (1), electric machine support (4), bearing I (6), bearing bridge I (7), bearing II (11), bearing bridge II (12), scrambler support (14), key I ~ IV (17, 18, 22, 23), described electric machine support (4), bearing bridge I (7), bearing bridge II (12) and scrambler support (14) are respectively by key IV (23), key III (22), key II (18) and key I (17) adopt the mode of interference fit to be arranged on base (1), bearing I (6) and bearing II (11) adopt deep groove ball bearing, and bearing bridge I (7) and bearing bridge II (12) slight interference coordinate with bearing I (6) and bearing II (11) assembles.
3. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: described stepper motor (2) is located by motor seam (24) and the little clearance fit in electric machine support hole (26) on electric machine support (4), by four screw I (3), stepper motor (2) is fixed on electric machine support (4).
4. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: described shaft coupling I is plum coupling (5), in the central shaft (8) that connects motor output shaft (25) and gradient platform assembly, guarantee right alignment.
5. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: the spring coupling (13) that described shaft coupling II is aluminium alloy, links together the transmitter shaft of central shaft (8) (30) and the input shaft (32) of photoelectric encoder (15).
6. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: described gradient platform assembly comprises central shaft (8), dull and stereotyped (9) and screw II (10), described central shaft mills out the surface level that a flatness is 0.02mm on (8), and is drilled with three holes; The flatness of dull and stereotyped (9) upper and lower two parallel surfaces is 0.02mm, dull and stereotyped (9) are fixed on by screw II (10) in the plane (28) of central shaft (8), the left side shaft shoulder (27) of central shaft (8) is connected with the contact of bearing I (6) face by slight interference fit system, and the right side shaft shoulder (29) of central shaft (8) is by slight interference fit system and bearing II (11) assembling.
7. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: described photoelectric encoder (15) is located by scrambler seam (31) and the little clearance fit of scrambler support seam (33) on scrambler support (14), by four screw III (16), photoelectric encoder (15) is fixed on scrambler support (14).
8. electronic brake system hardware according to claim 1 is at the road grade simulator stand of ring test, it is characterized in that: it is upper that described limit switch (19) is fixed on limit switch base (21) by two screw IV (20), and limit switch base (21) is fixed on below bearing bridge I (7) by two plus screw (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410026812.3A CN103728975B (en) | 2014-01-21 | 2014-01-21 | The road grade simulator stand of electronic brake system hardware-in the-loop test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410026812.3A CN103728975B (en) | 2014-01-21 | 2014-01-21 | The road grade simulator stand of electronic brake system hardware-in the-loop test |
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| CN103728975A true CN103728975A (en) | 2014-04-16 |
| CN103728975B CN103728975B (en) | 2016-06-08 |
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| CN201410026812.3A Expired - Fee Related CN103728975B (en) | 2014-01-21 | 2014-01-21 | The road grade simulator stand of electronic brake system hardware-in the-loop test |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104849065A (en) * | 2014-12-22 | 2015-08-19 | 北汽福田汽车股份有限公司 | Mountain road simulating test method and device for vehicle |
| CN105867358A (en) * | 2016-06-06 | 2016-08-17 | 河北工业大学 | Hardware-in-loop test device and method of automobile electronic parking controller |
| CN113340608A (en) * | 2021-05-28 | 2021-09-03 | 东风汽车有限公司东风日产乘用车公司 | Automobile test method and automobile test rack |
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| CN203249776U (en) * | 2013-05-07 | 2013-10-23 | 浙江万向精工有限公司 | Simulation test system applied to EPB |
| CN203249774U (en) * | 2013-05-07 | 2013-10-23 | 浙江万向精工有限公司 | EPB ramp starting test device |
| CN203705946U (en) * | 2014-01-21 | 2014-07-09 | 吉林大学 | Road gradient simulation test bench of electronic parking brake system hardware-in-the-loop test |
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Patent Citations (5)
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| CN101819440A (en) * | 2010-03-22 | 2010-09-01 | 芜湖伯特利汽车安全系统有限公司 | In-the-loop simulation test system for electronic parking brake system |
| CN102564772A (en) * | 2012-01-13 | 2012-07-11 | 南京理工大学 | Testing device for electronic parking brake system |
| CN203249776U (en) * | 2013-05-07 | 2013-10-23 | 浙江万向精工有限公司 | Simulation test system applied to EPB |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104849065A (en) * | 2014-12-22 | 2015-08-19 | 北汽福田汽车股份有限公司 | Mountain road simulating test method and device for vehicle |
| CN105867358A (en) * | 2016-06-06 | 2016-08-17 | 河北工业大学 | Hardware-in-loop test device and method of automobile electronic parking controller |
| CN105867358B (en) * | 2016-06-06 | 2018-06-29 | 河北工业大学 | Automotive electronic parking controller hardware is in ring test device and method |
| CN113340608A (en) * | 2021-05-28 | 2021-09-03 | 东风汽车有限公司东风日产乘用车公司 | Automobile test method and automobile test rack |
| CN113340608B (en) * | 2021-05-28 | 2023-11-17 | 东风汽车有限公司东风日产乘用车公司 | Automobile testing method and automobile testing bench |
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| CN103728975B (en) | 2016-06-08 |
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Granted publication date: 20160608 Termination date: 20170121 |