WO2016017226A1 - ナックル構造 - Google Patents
ナックル構造 Download PDFInfo
- Publication number
- WO2016017226A1 WO2016017226A1 PCT/JP2015/062642 JP2015062642W WO2016017226A1 WO 2016017226 A1 WO2016017226 A1 WO 2016017226A1 JP 2015062642 W JP2015062642 W JP 2015062642W WO 2016017226 A1 WO2016017226 A1 WO 2016017226A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- knuckle
- vehicle
- harness
- grounding
- ground
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0054—Cables with incorporated electric resistances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/20—Mounting of accessories, e.g. pump, compressor
- B60G2204/202—Mounting of accessories, e.g. pump, compressor of cables
- B60G2204/2022—Mounting of accessories, e.g. pump, compressor of cables using a suspension element (e.g. link, damper or spring) as part of the electrical circuitry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/50—Electric vehicles; Hybrid vehicles
Definitions
- the present invention relates to a knuckle structure provided in a vehicle suspension.
- a motor for example, hybrid cars and electric cars
- noise is generated in the rotor that constitutes the motor, and this noise is transmitted to the knuckle through the drive shaft, and may be emitted from the knuckle to the outside to become radio noise.
- a radio antenna mounted on a vehicle picks up noise and generates radio noise.
- Patent Document 1 as a countermeasure against such radio noise, a carrier that is rotatably provided relative to the axle and a parking brake wire are electrically connected and grounded, whereby radio noise is caused to the vehicle body side. The escape is suppressed from radiating to the outside.
- the knuckle is arranged at a site where the surrounding environment is likely to change due to the external environment (for example, water, oil, snow, dust, heat, etc.).
- the harness may be disconnected due to snow attached to the knuckle. It is required to stably connect the harness to the knuckle at a site where the external environment changes drastically.
- An object of the present invention is to provide a knuckle structure capable of suppressing radio noise and improving environmental performance.
- the present invention includes a knuckle that rotatably supports a drive shaft coupled to an output shaft of a drive motor, and a ground member that electrically connects the knuckle and the vehicle body.
- the knuckle structure is characterized in that the ground member is connected to a side surface of the knuckle facing the rear of the vehicle or a side surface of the knuckle facing the front of the vehicle.
- the ground member is connected to the side surface of the knuckle facing the rear of the vehicle or the side surface of the knuckle facing the front of the vehicle, for example, water, oil, snow, dust, etc. from the road surface Is difficult to hit directly, and the influence of heat from the road surface can be reduced.
- radio noise from a motor which is a problem in a hybrid vehicle or an electric vehicle, can be reduced, and an electronic device such as a radio can be in a good reception state.
- the environmental performance can be improved.
- the present invention by improving environmental performance, it is not necessary to provide a protective material for protecting the harness (ground member) grounded on the side surface of the knuckle from water, snow, etc., and a simpler structure It can be. As a result, the unsprung weight of the suspension can be reduced and the suspension can be manufactured at a lower cost.
- the present invention is characterized in that a side surface of the knuckle to which the ground member is connected is provided between a brake caliper of a brake mechanism and the knuckle.
- the snow can be removed by removing the attached snow by the heat generation action of the brake caliper located near the side surface of the knuckle.
- the brake caliper located near the side surface of the knuckle.
- the brake caliper positioned in front of the knuckle functions as a protective wall for the knuckle.
- the ground contact surface to which the ground member is connected to the knuckle can be protected from, for example, chipping of the front wheels.
- the present invention is characterized in that the ground member has a ground harness, and the resistance value R of the ground harness is set to be greater than 0 ⁇ and equal to or less than 10 ⁇ (0 ⁇ R ⁇ 10). .
- the electric field strength of radio noise decreases with a boundary near the resistance value R of the grounding harness of 10 ⁇ . That is, an inexpensive harness can be used by setting the upper limit of the resistance value R of the grounding harness corresponding to the electric field intensity of radio noise to be greater than 0 ⁇ and equal to or less than 10 ⁇ (0 ⁇ R ⁇ 10). Thereby, it can manufacture still more cheaply.
- a knuckle structure capable of suppressing radio noise and improving environmental performance can be obtained.
- FIG. 1 is a perspective view of a suspension / brake system to which a knuckle structure according to an embodiment of the present invention is applied.
- FIG. 2 is a partially enlarged perspective view of FIG. 1. It is a disassembled perspective view which shows the state by which the terminal of a grounding member is fastened with a volt
- FIG. 5 is an equivalent circuit diagram showing a potential difference among a GND (vehicle body), a motor shaft, a drive shaft, and a knuckle, in the embodiment in which a grounding harness is provided.
- FIG. 5 it is explanatory drawing which shows the relationship between the radio noise electric field strength and the resistance value of a grounding harness.
- FIG. 1 is a perspective view of a suspension / brake system to which a knuckle structure according to an embodiment of the present invention is applied
- FIG. 2 is a partially enlarged perspective view of FIG.
- the suspension / brake system 10 includes a suspension mechanism 14 that is connected to a vehicle subframe (not shown) and supports a left rear wheel (wheel) 12, and a brake mechanism 16 that brakes the left rear wheel 12. And is configured.
- the suspension mechanism 14 rotatably supports a drive shaft 18 connected to an output shaft of a motor (drive motor) M, supports the knuckle 20 formed of a conductive material, the knuckle 20, and the knuckle 20 And a plurality of arms suspended on a subframe (not shown).
- a motor drive motor
- FIG. 3 is an exploded perspective view showing a state in which the terminal of the ground member is fastened by the bolt to the ground connection portion of the knuckle facing the rear of the vehicle.
- the knuckle 20 includes a knuckle body 20 a, a protruding portion 22 that protrudes substantially horizontally from the upper portion of the knuckle body 20 a toward a subframe (not shown) (inside the vehicle body), and a knuckle body 20 a.
- Two ring portions 26 a and 26 b that are integrally provided on the lower side and have a through hole 24 are provided.
- a through-hole 28 that penetrates the drive shaft 18 is formed in the approximate center of the knuckle body 20a.
- the protrusion 22 is formed with a connection hole 32 to which the upper arm 30 (see FIG. 1) is connected via a rubber bush (not shown). Further, the projecting portion 22 is provided with a ground connection portion 34 formed by a substantially rectangular flat surface facing the rear of the vehicle. The ground connection portion 34 functions as a “side face toward the rear of the vehicle” of the knuckle 20. By screwing a bolt 38 into the screw hole 36 of the ground connection portion 34, a terminal 40a of the ground member 40 described later is fastened. Thereby, the ground member 40 is electrically connected to the knuckle 20.
- the plurality of arms are substantially A-shaped in plan view, and one end on the outside of the vehicle body is connected to the protruding portion 22 (see FIG. 3) of the knuckle 20 and the other end on the inside of the vehicle body is illustrated.
- An upper arm 30 connected to the sub-frame not to be connected, one end on the outer side of the vehicle body connected to the two ring portions 26a and 26b of the knuckle 20, and the other lower end on the inner side of the vehicle body connected to the sub-frame (not shown)
- the two lower arms 42b and the control arm 43 connected to the intermediate portion of the knuckle 20 are configured.
- a suspension portion 44 is provided between one end and the other end of the upper arm 30 to suspend two arm portions 30a and 30b branched from one end.
- the suspension portion 44 is connected to a damper 46 and a bolt 46 via bolts (not shown).
- a coil spring 48 is connected.
- the brake mechanism 16 has a disc-shaped brake disc 50 and a brake caliper 52.
- the brake caliper 52 has a housing 54, and a brake pad (not shown) and a plurality of pistons (not shown) that press the brake pad toward the brake disc 50 are disposed inside the housing 54.
- the brake caliper 52 is disposed close to and opposed to the ground connection portion 34 of the knuckle 20 in the vehicle longitudinal direction. In other words, the ground connection portion 34 is disposed between the knuckle 20 and the brake caliper 52.
- the brake caliper 52 functions as a heat generation source by transmitting frictional heat generated between the brake disc 50 and a piston (not shown).
- a wheel speed sensor (ABS sensor) 58 for detecting the rotational speed of the left rear wheel 12 is attached to the disk cover 56 that covers the brake disk 50.
- a pair of small-diameter ABS harnesses (not shown) are connected to the wheel speed sensor 58.
- an electric parking brake (Electric Parking Brake) (not shown) is disposed in the vicinity of the knuckle 20.
- a pair of large-diameter EPB harnesses (not shown) are connected to the electric parking brake.
- the ground member 40 has a single ground harness 64 connected to the ground connection portion 34. Further, a tube member 66 that integrally covers an ABS harness and an EPB harness (not shown) is provided.
- the grounding harness 64 is attached to the outer peripheral surface of the tube member 66 via a winding means (not shown), extends along the tube member 66, and branches from a branching portion 68 located above the knuckle 20. It is configured.
- ABS harness and EPB harness (not shown) are electrically connected to an ECU (Electronic Control Unit) (not shown) via a connector.
- ECU Electronic Control Unit
- the grounding harness 64 is grounded to a conductive vehicle body (not shown) via a terminal (not shown).
- the suspension / brake system 10 to which the knuckle structure according to the present embodiment is applied is basically configured as described above. Next, the function and effect will be described.
- the ground member 40 is connected to the ground connection portion 34 that is a side surface of the knuckle 20 facing the rear of the vehicle, for example, water, oil, snow, dust, and the like from the road surface are difficult to directly contact. In addition, the influence of heat from the road surface can be reduced. In the present embodiment, by earthing such a portion with the ground member 40, for example, radio noise from the motor M, which is a problem in a hybrid vehicle, an electric vehicle, or the like, is reduced, and an electronic device such as a radio is improved. The reception state can be achieved and the environmental performance can be improved.
- the ground connection portion 34 to which the ground member 40 is connected is provided between the brake caliper 52 and the knuckle 20 of the brake mechanism 16 along the vehicle front-rear direction.
- FIG. 4 is a perspective view showing a state in which the ground member is fastened with a bolt to the ground connection portion of the knuckle facing the front of the vehicle. Note that the same or corresponding components as those shown in FIG. 3 are denoted by the same reference numerals and description thereof is omitted.
- the brake caliper positioned at the front of the vehicle relative to the knuckle 20. 52 functions as a protective wall for the knuckle 20.
- the earth connection part 34 earth grounding surface
- chipping chipping
- the knuckle 20 attached to the rear wheel is described.
- the ground connection portion 34 is connected to the knuckle 20 attached to the front wheel (not shown).
- the ground member 40 is connected to the ground connection portion 34 that is a side surface of the knuckle 20 attached to the front wheel (not shown) facing the rear of the vehicle or the ground connection portion 34 that is the side surface of the knuckle 20 facing the front of the vehicle. Grounded.
- FIG. 5A is a comparative example in which a grounding harness is not provided, and is an equivalent circuit diagram showing a potential difference among GND (vehicle body), a motor shaft, a drive shaft, and a knuckle.
- b) is an equivalent circuit diagram showing a potential difference among a GND (vehicle body), a motor shaft, a drive shaft, and a knuckle, in the present embodiment provided with a grounding harness.
- the comparative example shown in FIG. 5A differs from the present embodiment shown in FIG. 5B only in the presence or absence of the grounding harness 64 connected to the ground connection portion 34 of the knuckle 20. In all other respects, the configuration is the same.
- the potential difference between the motor shaft of the motor M and the drive shaft 18 is V 1
- the potential difference between the drive shaft 18 and the knuckle 20 is V 2
- the knuckle 20 And GND is a potential difference V 3
- the entire potential difference from the motor shaft to GND is a shaft voltage V.
- the potential difference causing radio noise is the potential difference V n between the drive shaft 18 and the GND (vehicle body).
- the knuckle 20 and GND are grounded by the grounding harness 64, and the resistance value (grounding resistance value) of the grounding harness 64 is set.
- R is set to 10 ⁇ or less (R ⁇ 10).
- the knuckle 20 and the vehicle body become substantially the same potential, as compared to the potential difference V n between the drive shaft 18 and the GND (vehicle body), the drive shaft 18 and the knuckle causing radio noise
- the potential difference V n ′ (V 2 ) with respect to 20 can be made very small to a negligible level (V n ′ ⁇ V n ).
- FIG. 6 is an explanatory diagram showing the relationship between the radio noise electric field strength and the resistance value of the grounding harness in this embodiment.
- the electric field strength of radio noise is a region where the resistance value R of the grounding harness 64 decreases at about 10 ⁇ as a boundary and is maintained at a substantially constant value at the lower limit ( Halftone dot reference). That is, by setting the upper limit of the resistance value R of the grounding harness 64 corresponding to the electric field intensity of radio noise to be greater than 0 ⁇ and 10 ⁇ or less (0 ⁇ R ⁇ 10), radio noise can be reduced and grounding can be performed.
- the harness 64 an inexpensive harness having a resistance value near 10 ⁇ currently available on the market can be used. Thus, there is an advantage that the suspension / brake system 10 can be manufactured at a lower cost.
- Suspension and brake system 12 Left rear wheel (wheel) 16 Brake mechanism 18 Drive shaft 20 Knuckle 34 Ground connection (side) 40 Ground member 52 Brake caliper 64 Grounding harness M Motor (drive motor)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Vehicle Body Suspensions (AREA)
- Braking Arrangements (AREA)
Abstract
Description
図5(a)は、アース用ハーネスが設けられていない比較例であって、GND(車体)と、モータ軸と、ドライブシャフトと、ナックルとの間の電位差を示す等価回路図、図5(b)は、アース用ハーネスが設けられた本実施形態であって、GND(車体)と、モータ軸と、ドライブシャフトと、ナックルとの間の電位差を示す等価回路図である。
12 左後輪(車輪)
16 ブレーキ機構
18 ドライブシャフト
20 ナックル
34 アース接続部(側面)
40 アース部材
52 ブレーキキャリパ
64 アース用ハーネス
M モータ(駆動モータ)
Claims (3)
- 駆動モータの出力軸に連結されるドライブシャフトを回転自在に軸支するナックルと、前記ナックルと車体とを電気的に接続するアース部材とを備えるナックル構造であって、
前記アース部材は、前記ナックルの車両後方に向けた側面、又は、前記ナックルの車両前方に向けた側面に接続されていることを特徴とするナックル構造。 - 請求項1記載のナックル構造において、
前記アース部材が接続される前記ナックルの側面は、ブレーキ機構のブレーキキャリパと前記ナックルとの間に設けられることを特徴とするナックル構造。 - 請求項1又は請求項2記載のナックル構造において、
前記アース部材は、アース用ハーネスを有し、
前記アース用ハーネスの抵抗値Rは、0Ωより大きく10Ω以下(0<R≦10)に設定されていることを特徴とするナックル構造。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/500,181 US9937881B2 (en) | 2014-07-31 | 2015-04-27 | Knuckle structure |
JP2016538175A JP6383421B2 (ja) | 2014-07-31 | 2015-04-27 | ナックル構造 |
CN201580040427.7A CN106536235B (zh) | 2014-07-31 | 2015-04-27 | 转向节结构 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-156449 | 2014-07-31 | ||
JP2014156449 | 2014-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016017226A1 true WO2016017226A1 (ja) | 2016-02-04 |
Family
ID=55217130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/062642 WO2016017226A1 (ja) | 2014-07-31 | 2015-04-27 | ナックル構造 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9937881B2 (ja) |
JP (1) | JP6383421B2 (ja) |
CN (1) | CN106536235B (ja) |
WO (1) | WO2016017226A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016088297A (ja) * | 2014-11-05 | 2016-05-23 | 本田技研工業株式会社 | 電動車両 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3470248B1 (en) * | 2017-10-10 | 2020-04-08 | C.R.F. Società Consortile per Azioni | Suspension device of a motor-vehicle wheel |
US11848546B2 (en) * | 2021-02-01 | 2023-12-19 | Magna Powertrain Of America, Inc. | High voltage wire protection system for electric vehicles |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939531A (ja) * | 1995-07-28 | 1997-02-10 | Mitsubishi Motors Corp | サスペンション構造 |
JP2009006969A (ja) * | 2007-06-29 | 2009-01-15 | Toyota Motor Corp | ステアリングナックル |
JP2010228734A (ja) * | 2009-03-30 | 2010-10-14 | Suzuki Motor Corp | ハーネス取り付け構造 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58167242A (ja) * | 1982-03-29 | 1983-10-03 | Nissan Motor Co Ltd | ワイヤハ−ネスの布線方式 |
JPH0765320B2 (ja) * | 1988-05-25 | 1995-07-19 | 忠弘 大見 | 精密施設のための制振基礎 |
JP2009029326A (ja) * | 2007-07-30 | 2009-02-12 | Toyota Motor Corp | 車両 |
-
2015
- 2015-04-27 WO PCT/JP2015/062642 patent/WO2016017226A1/ja active Application Filing
- 2015-04-27 JP JP2016538175A patent/JP6383421B2/ja not_active Expired - Fee Related
- 2015-04-27 CN CN201580040427.7A patent/CN106536235B/zh active Active
- 2015-04-27 US US15/500,181 patent/US9937881B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939531A (ja) * | 1995-07-28 | 1997-02-10 | Mitsubishi Motors Corp | サスペンション構造 |
JP2009006969A (ja) * | 2007-06-29 | 2009-01-15 | Toyota Motor Corp | ステアリングナックル |
JP2010228734A (ja) * | 2009-03-30 | 2010-10-14 | Suzuki Motor Corp | ハーネス取り付け構造 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016088297A (ja) * | 2014-11-05 | 2016-05-23 | 本田技研工業株式会社 | 電動車両 |
Also Published As
Publication number | Publication date |
---|---|
US9937881B2 (en) | 2018-04-10 |
JP6383421B2 (ja) | 2018-08-29 |
JPWO2016017226A1 (ja) | 2017-04-27 |
CN106536235A (zh) | 2017-03-22 |
US20170259760A1 (en) | 2017-09-14 |
CN106536235B (zh) | 2018-12-28 |
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