Vehicles Including An Engine Compartment Spacer Member
A vehicle includes a side support extending in a vehicle longitudinal direction, a drive unit spaced apart from the side support in a vehicle lateral direction, where the drive unit includes a crankshaft extending in the vehicle lateral direction, and a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, where the spacer member coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and where the spacer member is positioned rearward of the crankshaft in the vehicle longitudinal direction.
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The present specification relates to vehicles including a spacer member positioned within an engine compartment, and in particular to vehicles including a spacer member positioned between a side support and a drive unit of the vehicle.
BACKGROUNDVehicles may be equipped with bumper systems and impact protection structures that elastically and plastically deform to absorb energy in the event of an impact.
In one example, a substantial portion of energy from an impact with a small front bumper overlap may be directed outboard of many of the energy absorbing structures of the vehicle. Because a substantial portion of the energy from the impact is directed into the bumper assembly at a position that is outboard of many of the energy absorbing structures of the vehicle, the energy from the impact may not be absorbed or may only be partially absorbed by those energy absorbing structures of the vehicle. The unabsorbed energy may be directed into a front suspension unit and transferred rearward along the vehicle as the front suspension unit contacts vehicle structures proximate to a passenger cabin of the vehicle.
Accordingly, a need exists for alternative structures for transferring energy and absorbing energy from an impact with a small overlap to the front bumper.
SUMMARYIn one embodiment, a vehicle includes a side support extending in a vehicle longitudinal direction, a drive unit spaced apart from the side support in a vehicle lateral direction, where the drive unit includes a crankshaft extending in the vehicle lateral direction, and a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, where the spacer member coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and where the spacer member is positioned rearward of the crankshaft in the vehicle longitudinal direction.
In another embodiment, a vehicle includes a side support extending in a vehicle longitudinal direction, a suspension mount coupled to the side support, a drive unit spaced apart from the side support in a vehicle lateral direction, and a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, where the spacer member is coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and where at least a portion of the spacer member is aligned with the suspension mount in the vehicle longitudinal direction.
In yet another embodiment, a vehicle includes a side support extending in a vehicle longitudinal direction, a drive unit spaced apart from the side support in a vehicle lateral direction, where the drive unit includes a drive unit centerline that extends through a center of mass of the drive unit in the vehicle lateral direction, and a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, where the spacer member is coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and where the spacer member is positioned rearward of the drive unit centerline in the vehicle longitudinal direction.
These and additional features provided by the embodiments described herein will be more fully understood in view of the following detailed description, in conjunction with the drawings.
The embodiments set forth in the drawings are illustrative and exemplary in nature and not intended to limit the subject matter defined by the claims. The following detailed description of the illustrative embodiments can be understood when read in conjunction with the following drawings, where like structure is indicated with like reference numerals and in which:
Vehicles according to the present disclosure include a side support and a drive unit, such as an internal combustion engine, that is spaced apart from the side support. A spacer member is positioned at a rearward portion of the drive unit and is positioned between the drive unit and the side support. The spacer member is coupled to one of the drive unit and the side support and is spaced apart from the other of the drive unit and the side support during ordinary vehicle operation. During an impact, such as a small overlap impact, the spacer member contacts the side support and the drive unit and may assist in directing energy and/or forces associated with the impact into the side support. By positioning the spacer member between the drive unit and the side support, the drive unit may contact the side support at an earlier time during the impact as compared to vehicles that do not include a spacer member, which may assist in directing energy and/or forces into the side support and reducing the energy and/or forces associated with the impact that are directed into a cabin of the vehicle. These and other embodiments will be described in more detail below in reference to the appended drawings.
As used herein, the term “vehicle longitudinal direction” refers to the forward-rearward direction of the vehicle (i.e., in the +/−vehicle X-direction as depicted). The term “vehicle lateral direction” refers to the cross-vehicle direction (i.e., in the +/−vehicle Y-direction as depicted), and is transverse to the vehicle longitudinal direction. The term “vehicle vertical direction” refers to the upward-downward direction of the vehicle (i.e., in the +/−vehicle Z-direction as depicted). Further, the terms “inboard” and “outboard” are used to describe the relative positioning of various components of the vehicle. Referring to
Motor vehicles that incorporate elements according to the present disclosure may include a variety of construction methodologies that are conventionally known, including the unibody construction methodology depicted in
Referring initially to
Referring to
In the embodiment depicted in
The drive unit 120 further includes a drive unit centerline 124 that extends through a center of mass 128 of the drive unit 120 in the vehicle lateral direction. In some embodiments, the drive unit centerline 124 bisects the crankshaft 122 of the drive unit 120. In other embodiments, the drive unit centerline 124 may be positioned forward or rearward of the crankshaft 122 in the vehicle longitudinal direction. Accordingly, in some embodiments, the crankshaft 122 extends through the center of mass 128 of the drive unit 120, while in other embodiments, the crankshaft 122 may be positioned forward or rearward of the center of mass 128 of the drive unit 120 in the vehicle longitudinal direction.
The body 110 of the vehicle 100 includes side supports 112 that extend in the vehicle longitudinal direction. In the embodiment depicted in
In embodiments, the drive unit 120 is positioned between the first side support 113 and the second side support 115 in the vehicle lateral direction. The drive unit 120 is also spaced apart from the first side support 113 and the second side support 115 in the vehicle lateral direction, which may assist in reducing the transmission of vibration from the drive unit 120 to the first side support 113 and the second side support 115, and accordingly to the cabin 108 (
The vehicle 100 includes a spacer member 130 that is coupled to one of the drive unit 120 or one of the side supports 112, and the spacer member 130 is spaced apart from the other of the drive unit 120 or the side supports 112. In the embodiment depicted in
Referring to
During ordinary vehicle operation, such as shown in
Referring to
Referring to
When a vehicle impacts a barrier, vehicle structures may elastically and plastically deform to absorb energy while slowing the vehicle from its previous operating speed. The vehicle structures divert and absorb the energy associated with the moving vehicle into energy that deforms the vehicle structures. The vehicle structures may be designed to accommodate the introduction of the energy of the impact, such that the energy associated with the impact may be controllably dissipated and directed through selective and preferential deformation of the vehicle structures.
The front corner of the vehicle may impact an object in what is referred to herein as a small front bumper overlap or a small overlap impact. In a small front bumper overlap impact, the impact occurs at an outboard portion of the vehicle (evaluated in a vehicle lateral direction), and only a portion of the front bumper strikes the object. In some small front bumper overlap impacts, no more than about 25% of the front bumper strikes the object. In such impacts, some of the energy dissipation elements of the vehicle may not be initiated or may be only partially initiated. In such impacts, the energy that is introduced to the vehicle structures may be non-symmetrical when evaluated in the vehicle lateral direction. Accordingly, the reaction of the vehicle structures to the energy introduced by the small overlap impacts may introduce a non-symmetrical response to the vehicle structures. Referring to embodiments disclosed herein, the body 110 may be non-symmetrically loaded when the vehicle is involved in a small overlap impact.
Because only a portion of the front bumper strikes an object during a small front bumper overlap impact, all of the energy absorbing structures associated with the front bumper may have a reduced effect on the dissipation of energy of the impact. In particular, some of the energy absorbing structures associated with the bumper of the vehicle 100 may not be activated or may be only partially activated, such that a portion of the energy absorbing structures of the vehicle may not dissipate energy associated with the small front bumper overlap impact. Instead, the energy and/or forces associated with the impact may be directed into the front suspension unit 102 of the vehicle 100 proximate to the barrier that the vehicle impacts. As energy from the impact may be directed into the front suspension unit 102 of the vehicle 100, the front suspension unit 102 may translate rearward in the vehicle longitudinal direction and may contact the cabin 108 of the vehicle, transmitting energy and/or forces associated with the impact into the cabin 108 of the vehicle 100.
Referring to
Energy and/or forces associated with the impact may be directed into the drive unit 120 through contact with the front bumper 116 and/or the first side support 113, and may cause the drive unit 120 to move toward the second side support 115 in the vehicle lateral direction. In some impact configurations, the drive unit 120 may rotate about the vehicle vertical direction, such that a rear portion of the drive unit 120 moves toward the second side support 115 and away from the barrier 30 in the vehicle lateral direction.
As the drive unit 120 moves away from the barrier 30 in the vehicle lateral direction, the drive unit 120 impacts the second side support 115. As the drive unit 120 contacts the second side support 115, energy and/or forces associated with the impact may be transferred through the drive unit 120 to the second side support 115. In embodiments, the drive unit 120 may be generally rigid, such as when the drive unit 120 includes an internal combustion engine, and the drive unit 120 may experience little or no plastic or elastic deformation during impact. Instead, as the drive unit 120 contacts the second side support 115, forces and/or energy associated with the impact may be transmitted through the drive unit 120 to the second side support 115. As the drive unit 120 contacts the second side support 115, the second side support 115 may plastically and elastically deform, thereby absorbing energy associated with the impact and reducing the amount of energy associated with the impact that may be transmitted to the cabin 108 of the vehicle 100.
As described above, the spacer member 130 is positioned between the drive unit 120 and the second side support 115 in the vehicle lateral direction. Further, as described above, the spacer member 130 is positioned at a rear portion of the drive unit 120, such that the spacer member 130 may contact the second side support 115 as the drive unit 120 moves toward the second side support 115 in the vehicle lateral direction. As the spacer member 130 moves toward the second side support 115 in the vehicle lateral direction, the spacer member 130 moves from a disengaged position, as shown in
Because the spacer member 130 is positioned between the drive unit 120 and the second side support 115, the spacer member 130 may reduce a distance between the drive unit 120 and the second side support 115 in the vehicle lateral direction. During an impact, such as the small overlap impact shown in
Additionally, as the spacer member 130 reduces the distance between the drive unit 120 and the second side support 115, during an impact, the spacer member 130 may reduce lateral movement of the drive unit 120 within the engine compartment 111 as compared to vehicles 100 that do not include a spacer member 130. In particular and still referring to
By reducing the amount of lateral movement of the drive unit 120 within the engine compartment 111 during the impact, energy and/or forces associated with the impact may direct the vehicle 100 away from the barrier 30 instead of moving the drive unit 120 in the vehicle lateral direction within the engine compartment 111. In particular, as described above, the drive unit 120 may be generally rigid, such that the drive unit 120 may experience little or no plastic or elastic deformation during impact and energy and/or forces associated with the impact may be transmitted through the drive unit 120. Accordingly, during an impact, when the first side support 113 and the second side support 115 are both in contact with the drive unit 120, energy and/or forces associated with the impact may move the first side support 113, the drive unit 120, the second side support 115, and accordingly the body 110 of the vehicle away from the barrier 30 in the vehicle lateral direction. By moving the body 110 of the vehicle 100 away from the barrier 30 during the impact, the overall amount of energy and/or forces directed into the body 110 of the vehicle 100 may be reduced as compared to vehicles that are not directed away from the barrier 30 in the vehicle lateral direction. In this way, the spacer member 130 may reduce the energy and/or forces associated with the impact that are directed into the body 110 of the vehicle 100 as compared to vehicles that do not include the spacer member 130.
Further, by reducing the amount of movement of the drive unit 120 in the vehicle lateral direction within the engine compartment 111 during an impact, the spacer member 130 may assist in encouraging plastic and elastic deformation of the first side support 113. In particular, limiting movement of the drive unit 120 in the vehicle lateral direction within the engine compartment 111 may assist in maintaining the first side support 113 in a generally longitudinal orientation. As described above, during a small overlap impact, such as the impact shown in
In some embodiments and impact configurations, the spacer member 130 may selectively deform upon contact with the second side support 115, thereby absorbing energy associated with the impact and reducing the amount of energy directed toward the cabin 108 (
It should now be understood that vehicles according to the present disclosure include a side support and a drive unit, such as an internal combustion engine, that is spaced apart from the side support. A spacer member is positioned at a rearward portion of the drive unit and is positioned between the drive unit and the side support. The spacer member is coupled to one of the drive unit and the side support and is spaced apart from the other of the drive unit and the side support during ordinary vehicle operation. During an impact, such as a small overlap impact, the spacer member contacts the side support and the drive unit and may assist in directing energy and/or forces associated with the impact into the side support. By positioning the spacer member between the drive unit and the side support, the drive unit may contact the side support at an earlier time during the impact as compared to vehicles that do not include a spacer member, which may assist in directing energy and/or forces into the side support and reducing the energy and/or forces associated with the impact that are directed into a cabin of the vehicle.
It is noted that the terms “substantially” and “about” may be utilized herein to represent the inherent degree of uncertainty that may be attributed to any quantitative comparison, value, measurement, or other representation. These terms are also utilized herein to represent the degree by which a quantitative representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.
While particular embodiments have been illustrated and described herein, it should be understood that various other changes and modifications may be made without departing from the spirit and scope of the claimed subject matter. Moreover, although various aspects of the claimed subject matter have been described herein, such aspects need not be utilized in combination. It is therefore intended that the appended claims cover all such changes and modifications that are within the scope of the claimed subject matter.
Claims
1. A vehicle comprising:
- a side support extending in a vehicle longitudinal direction;
- a drive unit spaced apart from the side support in a vehicle lateral direction, wherein the drive unit comprises a crankshaft extending in the vehicle lateral direction; and
- a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, wherein the spacer member is coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and wherein the spacer member is positioned rearward of the crankshaft in the vehicle longitudinal direction.
2. The vehicle of claim 1, wherein the spacer member is coupled to the drive unit and is spaced apart from the side support.
3. The vehicle of claim 1, wherein the spacer member is coupled to the side support and is spaced apart from the drive unit.
4. The vehicle of claim 1, wherein the spacer member is repositionable from a disengaged position, in which the spacer member is detached and spaced apart from one of the drive unit and the side support, to an engaged position, in which the spacer member contacts the drive unit and the side support.
5. The vehicle of claim 4, further comprising a suspension mount coupled to the side support, wherein the spacer member contacts the suspension mount in the engaged position.
6. The vehicle of claim 1, further comprising a suspension mount coupled to the side support, wherein the suspension mount is positioned rearward from the crankshaft in the vehicle longitudinal direction.
7. The vehicle of claim 6, wherein at least a portion of the spacer member is aligned with the suspension mount in the vehicle longitudinal direction.
8. A vehicle comprising:
- a side support extending in a vehicle longitudinal direction;
- a suspension mount coupled to the side support at a position rearward of at least one of a crankshaft of the drive unit and a drive unit centerline in the vehicle longitudinal direction, the suspension mount extending inboard of the side support;
- a drive unit spaced apart from the side support in a vehicle lateral direction; and
- a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, wherein the spacer member is coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and wherein at least a portion of the spacer member is aligned with the suspension mount in the vehicle longitudinal direction.
9. The vehicle of claim 8, wherein the spacer member is coupled to the drive unit and is spaced apart from the side support.
10. The vehicle of claim 8, wherein the spacer member is coupled to the side support and is spaced apart from the drive unit.
11. The vehicle of claim 8, wherein the spacer member is repositionable from a disengaged position, in which the spacer member is detached and spaced apart from one of the drive unit and the side support, to an engaged position, in which the spacer member contacts the drive unit and the side support.
12. The vehicle of claim 11, wherein the spacer member contacts the suspension mount in the engaged position.
13. The vehicle of claim 11, wherein the spacer member is spaced apart from the side support in the disengaged position.
14. A vehicle comprising:
- a side support extending in a vehicle longitudinal direction;
- a drive unit spaced apart from the side support in a vehicle lateral direction, wherein the drive unit comprises a drive unit centerline that extends through a center of mass of the drive unit in the vehicle lateral direction; and
- a spacer member positioned between the side support and the drive unit in the vehicle lateral direction, wherein the spacer member is coupled to one of the drive unit and the side support, and the spacer member is detached and spaced apart from the other of the drive unit and the side support, and wherein the spacer member is positioned rearward of the drive unit centerline in the vehicle longitudinal direction.
15. The vehicle of claim 14, wherein the spacer member is coupled to the drive unit and is spaced apart from the side support.
16. The vehicle of claim 14, wherein the spacer member is coupled to the side support and is spaced apart from the drive unit.
17. The vehicle of claim 14, wherein the spacer member is repositionable from a disengaged position, in which the spacer member is detached and spaced apart from one of the drive unit and the side support, to an engaged position, in which the spacer member contacts the drive unit and the side support.
18. The vehicle of claim 17, further comprising a suspension mount coupled to the side support, wherein the spacer member contacts the suspension mount in the engaged position.
19. The vehicle of claim 14, wherein the drive unit comprises a crankshaft, and the spacer member is positioned rearward of the crankshaft.
20. The vehicle of claim 14, further comprising a suspension mount coupled to the side support, wherein the drive unit centerline is positioned forward of the suspension mount in the vehicle longitudinal direction.
Type: Application
Filed: May 5, 2016
Publication Date: Nov 9, 2017
Applicant: Toyota Motor Engineering & Manufacturing North America, Inc. (Erlanger, KY)
Inventor: Tyler E. Schnug (Northville, MI)
Application Number: 15/147,447