Front vehicle body structure
View Patent ↗An embodiment front vehicle body structure includes an underbody, an upper body coupled to the underbody, a front cowl disposed in front of the upper body, and a cowl support unit connected to the front cowl through a front pillar and a front side member of the upper body. An embodiment cowl support unit includes a cowl lower cross member connected to a front of the front side member along a vehicle width direction, a cowl lower support connected to the cowl lower cross member and the front cowl, and a cowl upper side support connecting an upper portion of the front pillar and the front cowl.
1. A front vehicle body structure comprising:
an underbody;
an upper body that includes a front cowl, the upper body coupled to the underbody;
a cowl support unit connected to the front cowl through a front pillar and a front side member of the upper body;
a second mount point is formed between a front end and a rear end of the front side member at a position corresponding to a body mounting support coupled to a wheel house of the upper body; and
a second engage portion installed to the second mount point.
2. The front vehicle body structure of claim 1 , wherein the cowl support unit includes a lower load pass, an upper load pass, and a top load pass configured to transfer a load input from the front cowl to the front pillar.
3. The front vehicle body structure of claim 1 , wherein:
the second engage portion is engaged in a second mounting portion of the underbody; and
the second mounting portion is provided on a front chassis frame at a rear side of a front back beam assembly.
4. A front vehicle body structure comprising:
an underbody;
an upper body that includes a front cowl, the upper body coupled to the underbody; and
a cowl support unit connected to the front cowl through a front pillar and a front side member of the upper body, wherein the cowl support unit comprises:
a cowl lower cross member connected to a front of the front side member along a vehicle width direction;
a cowl lower support connected to the cowl lower cross member and the front cowl;
a cowl upper side support connecting an upper portion of the front pillar and the front cowl;
a cowl lower side support connected to a lower portion of the cowl upper side support and to the front pillar; and
a fender apron upper member connected to the cowl lower support and the front pillar.
5. The front vehicle body structure of claim 4 , further comprising:
a front floor panel mounted on the upper body;
a floor upper coupled to the front floor panel; and
a floor reinforcement frame disposed along a front-rear direction on the floor upper.
6. The front vehicle body structure of claim 5 , wherein the cowl support unit further comprises a cowl cross bar assembly coupled to the floor reinforcement frame along the vehicle width direction.
7. The front vehicle body structure of claim 6 , wherein the cowl cross bar assembly comprises:
a reinforcement member connected to the fender apron upper member and the front pillar; and
a pair of cowl cross bars connected to the reinforcement member at both ends.
8. The front vehicle body structure of claim 7 , wherein the cowl cross bar assembly further comprises a spacer member engaged with the fender apron upper member with the reinforcement member therebetween.
9. The front vehicle body structure of claim 7 , wherein the cowl cross bar assembly further comprises a cowl cross bar extension connected with the floor reinforcement frame and coupled with the pair of cowl cross bars.
10. The front vehicle body structure of claim 7 , wherein the pair of cowl cross bars include closed cross-sections of different shapes.
11. The front vehicle body structure of claim 7 , wherein the reinforcement member is connected to a wheel house of the upper body and a body mounting support coupled to the front side member.
12. A front vehicle body structure comprising:
an underbody;
an upper body that includes a front cowl, the upper body coupled to the underbody;
a cowl support unit connected to the front cowl through a front pillar and a front side member of the upper body, wherein the cowl support unit comprises:
a cowl lower cross member connected to a front of the front side member along a vehicle width direction;
a cowl lower support connected to the cowl lower cross member and the front cowl; and
a cowl upper side support connecting an upper portion of the front pillar and the front cowl;
a first mount point formed at the front of the front side member at a position corresponding to the cowl lower cross member and the cowl lower support; and
a first engage portion installed to the first mount point.
13. The front vehicle body structure of claim 12 , wherein:
the first engage portion is engaged in a first mounting portion of the underbody; and
the first mounting portion is provided in a front crash box of a front back beam assembly.
14. The front vehicle body structure of claim 12 , wherein:
a second mount point is formed between a front end and a rear end of the front side member at a position corresponding to a body mounting support coupled to a wheel house of the upper body; and
a second engage portion is installed to the second mount point.
15. The front vehicle body structure of claim 14 , wherein:
the second engage portion is engaged in a second mounting portion of the underbody; and
the second mounting portion is provided on a front chassis frame at a rear side of a front back beam assembly.
16. A vehicle body comprising:
an underbody including a front chassis frame, a center chassis frame, and a rear chassis frame connected to each other along a front-rear direction of the vehicle body;
a battery assembly mounted on the underbody;
an upper body that includes a front cowl, the upper body coupled to the underbody;
a front floor panel mounted on the upper body;
a floor upper coupled to the front floor panel;
a floor reinforcement frame disposed on the floor upper along the front-rear direction; and
a cowl support unit connected to the front cowl through a front pillar and a front side member of the upper body, wherein the cowl support unit comprises:
a cowl lower cross member connected to a front of the front side member along a vehicle width direction;
a cowl lower support connected to the cowl lower cross member and the front cowl;
a cowl upper side support connecting an upper portion of the front pillar and the front cowl;
a cowl lower side support connected to a lower portion of the cowl upper side support and to the front pillar;
a fender apron upper member connected to the cowl lower support and the front pillar; and
a cowl cross bar assembly coupled to the floor reinforcement frame along the vehicle width direction.
17. The vehicle body of claim 16 , wherein the cowl cross bar assembly comprises:
a reinforcement member connected to the fender apron upper member and the front pillar;
a pair of cowl cross bars connected to the reinforcement member at both ends;
a spacer member engaged with the fender apron upper member with the reinforcement member therebetween; and
a cowl cross bar extension connected with the floor reinforcement frame and coupled with the pair of cowl cross bars.
18. The vehicle body of claim 17 , wherein the reinforcement member is connected to a wheel house of the upper body and a body mounting support coupled to the front side member.
19. The front vehicle body structure of claim 12 , wherein the cowl support unit further comprises:
a cowl lower side support connected to a lower portion of the cowl upper side support and to the front pillar; and
a fender apron upper member connected to the cowl lower support and the front pillar.
20. The front vehicle body structure of claim 19 , further comprising:
a front floor panel mounted on the upper body;
a floor upper coupled to the front floor panel; and
a floor reinforcement frame disposed along a front-rear direction on the floor upper.