Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B27/00—Hubs
  • B60B27/0047—Hubs characterised by functional integration of other elements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
  • B60B2900/00—Purpose of invention
  • B60B2900/30—Increase in
  • B60B2900/331—Safety or security
  • B60B2900/3312—Safety or security during regular use
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
  • B60Y2200/00—Type of vehicle
  • B60Y2200/10—Road Vehicles
  • B60Y2200/11—Passenger cars; Automobiles

Definitions

• the present invention relates to a device for increasing the vehicle safety of a wheeled vehicle, in particular a passenger car, having the features of the preamble of claim 1.
• Wheeled vehicles usually have a steering device for directional control.
• a conventional steering device comprises a steering wheel connected via a rod-shaped or tubular so-called steering column to a steering linkage.
• a rotation of the steering wheel relative to its neutral position which is familiar to the technician as a steering angle causes at least two wheels of the vehicle mounted on wheel carriers to assume a position determined by the chassis geometry, which brings about a change in direction when the vehicle is being driven.
• the self-adjusting angle between the wheel plane and straight running position is referred to in the automotive industry as a steering angle.
• a known as steering wheel or restoring torque essentially dependent on the speed of the vehicle torque acts counter to this steering angle to the steering column and thus ensures in the absence of further steering influences a stable straight-line stability of the vehicle. This phenomenon is familiar to the person skilled in the art as steering return.
• a torsion bar stabilizer connected via connecting arms to the wheel carrier is proposed to improve the steering return, which causes a restoring moment during steering movements of the wheel carriers by means of resilient stabilizers provided on the stabilizer, which can noticeably improve the steering return particularly at maximum wheel deflection.
• the proposed measure causes in the ideal case that in an impact during cornering of the vehicle, the vehicle tires can serve as a buffer to achieve the largest possible and temporally uniform distribution of the impact energy.
• This cushioning effect reduces the level of rigidity thrown in the direction of travel in a frontal impact during cornering, and thus ultimately reduces the risk of injury.
• the present invention therefore deals with the problem of providing for a generic device an improved embodiment, which is characterized in particular by an increased passive vehicle safety in collision accidents with low coverage.
• the invention is based on the general idea of arranging the device directly on a wheel carrier of the wheeled vehicle. This significant design simplifies the use of a complex and potentially unreliable lever assembly or other linkage for connection with more distant vehicle parts such as the bumper.
• the described mass forces which can act on the wheel and wheel carrier in particular in an impact with low coverage, can be intercepted in this way easily and effectively by the device.
• the device can be arranged such that it is able to support the internal structure of the wheel in the impact and thus considerably reduces the risk of a collapse of the wheel deformed by the impact energy.
• the wheel can advantageously dissipate a greater portion of the energy to outside areas of the body of the wheeled vehicle where it compromises the integrity of the passenger compartment to a much lesser extent.
• the device for this purpose comprises a strut, which stiffen the internal structure mechanically due to their shape.
• the resistance of the inner structure and thus of the entire wheel against an induced by the impact energy elastic deformation increases markedly in this embodiment.
• the execution of the device in the form of a strut is therefore particularly suitable in view of the extremely high load in an accident of the type described.
• the device can thereby arrange in a region of the wheel carrier, which lies in the direction of travel of the wheeled vehicle on an opposite axis end facing the inside of the wheel carrier.
• Such an arrangement ensures that the device contacts the obstacle in the event of impact even before other parts of the wheel carrier so that it can unfold its supporting effect optimally at the earliest possible time. It is recommended for this purpose for manufacturing practical considerations, already form the device in the wheel carrier, which can be additional installation steps to their attachment usually superfluous.
• the device may be provided for retrofitting to a suitable wheel carrier, which may even allow retrofitting a commercial wheeled vehicle to increase its passive vehicle safety.
• FIG. 1 is a perspective view of a device mounted on a wheel according to the invention
• FIG. 2 shows a partial sectional view of a wheeled vehicle equipped with the device according to FIG. 1 when it impacts on an obstacle;
• FIG. 3 shows the sectional view of FIG. 2 in a state shortly after impact
• Fig. 4 shows the sectional view of FIG. 2 and 3 in a state of maximum
• FIG. 1 shows a wheel 5 which is mounted on a steering knuckle or wheel carrier 6 by means of a wheel bearing and which is composed of a rim formed from rolled steel or cast or forged from light metal with a tire profiled in the area of its running surface.
• the wheel 5 is shown approximately in the mounted state of the wheel carrier 6 with the driver's position of a suitably equipped wheeled vehicle 2 (not shown in FIG. 1), which corresponds to the inside of the wheel 5 in the operating state.
• the wheel carrier 6 is provided with an independent suspension, which can connect the wheel 5 via wishbones and consisting of a spring and a hydraulic shock absorber MacPherson strut 9 with a body of the wheeled vehicle 2.
• Another body connection of the wheel 5 can be produced by means of a tie rod 8, not shown in FIG. 1, which attaches to a pivot point 7 of the wheel carrier 6.
• the device 1 in this case has the shape of a bow-shaped strut, which on the inside of the wheel 5 shown in Figure 1 in a direction of travel 10 of the wheeled vehicle 2 area the axis of symmetry of the wheel 5 circular arc with a
• a bead-like thickened baffle surface of the bracket is formed approximately at the level of the axis in Radmitte that further improves the desired support of the wheel 5.
• the device 1 tapers slightly and has a sufficient free cut so as not to impair the free running of the tire. In this way, a minimum distance to the wheel and tire is maintained.
• a corresponding clearance is also provided at the bottom, arranged in the region of the articulation point 7 end of the device 1, to prevent in their installed state of a collision with the Bremsabdeckblech by a suitable distance.
• a suitable trimming of the contour of the brake cover plate can be made.
• An additional intermediate holder is on the one hand with screw on the bracket, on the other hand arranged with a centrally on the contact surface on the wheel 6, for Bügelver screwing orthogonal aligned screw with the tie rod 8 (not shown in Figure 1) on the wheel 6.
• the corresponding with the intermediate holder stop surfaces of the wheel carrier 6 are suitable for this purpose edited or otherwise adapted. In order to bring about a mechanical resting of the bracket on the wheel carrier or stub axle in the event of an impact, this is positioned in its nearest point with a small distance to the wheel or stub axle.
• Manufacturing technology offers an embodiment of the intermediate holder as a bent part, for example made of sheet steel to.
• the provided on the wheel 6 for attaching the tie rod pin is extended by said sheet thickness to ensure a protrusion of the nut provided on the pin clamping area in the assembled state of the tie rod joint, so that a secure screw connection between bracket and wheel 6 can be.
• the bracket may be provided with a passage for example electrical lines.
• a suitable nominal distance is to be maintained here over the entire travel and impact of the wheel carrier 6 and requires, if necessary, a check on the wheeled vehicle 2 in the context of final assembly.
• the bracket of the device 1 is made of aluminum by means of a suitable forging technique, but it is also possible to use steel or composite material.
• a screw and a nut are also provided and for attachment to the tie rod connection in the region of the articulation point in each case a further screw and nut.
• An alternative, shorter shape, in particular of the stirrup, may reduce the overall mass of the device.
• Other fasteners, such as a suitable blank holder or a clamp can be used for connection to the strut mounting screws.
• FIG. 1 An alternative, not shown embodiment may use instead of the present steering knuckle steering another steering technology or arrange a device according to the invention on an unguided vehicle axle.
• the skilled person further recognizes that the approach described can be transferred to the wheel carrier of a driven vehicle axle, which may be unguided or - designed in the case of a four-wheel drive - steered, without departing from the scope of the invention.
• Figures 2 to 4 show in chronological order different phases of an impact of equipped with a chassis according to the invention 3 wheeled vehicle 2 on a fixed, in the direction of travel 10, the left side of the road of the wheeled vehicle 2 slightly overlapping obstacle 4. It becomes clear how that in the state shortly after the impact according to FIG.
• the advantageous mode of action of the invention reveals the insertion of the wheel limited to a predetermined maximum angle by already clearly recognizable in Figure 2 jamming between an elastically deformed by the obstacle 4 region of the wheel 5 and the wheel carrier.
• this limitation only a slight force shift results in the sense described above, which in turn is unable to bring about a significant increase in the torque on the steering axle.
• this specific kinematics occurs even in the final state of the collision of Figure 4, no intrusion of the wheel 5 in the passenger compartment; Instead, the wheel 5 bounces primarily on the sill 11, where it can settle the mass forces caused by the impact targeted.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Vehicle Body Suspensions (AREA)
• Body Structure For Vehicles (AREA)
• Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51176325

Family Applications (1)

Country Status (7)

Families Citing this family (11)

Family Cites Families (16)

• 2013
  • 2013-07-23 DE DE102013012273.2A patent/DE102013012273A1/de not_active Withdrawn
• 2014
  • 2014-07-02 CN CN201480041320.XA patent/CN105392637A/zh active Pending
  • 2014-07-02 KR KR1020157036322A patent/KR20160013143A/ko not_active Application Discontinuation
  • 2014-07-02 WO PCT/EP2014/001818 patent/WO2015010766A1/de active Application Filing
  • 2014-07-02 US US14/907,125 patent/US20160176441A1/en not_active Abandoned
  • 2014-07-02 EP EP14738386.3A patent/EP3024670A1/de not_active Withdrawn
  • 2014-07-02 JP JP2016528368A patent/JP2016527136A/ja active Pending

Non-Patent Citations (1)

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