Land vehicles incorporating impact management systems

Patent metadata

Field	Value
Publication number	US-11945505-B2
Application number	US-202318462656-A
Country	US
Kind code	B2
Filing date	Sep 7, 2023
Priority date	Dec 9, 2021
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

A land vehicle includes a frame structure, a plurality of wheels, and an impact management system. The frame structure includes an operator cage that at least partially defines an operator cabin and a rear compartment positioned rearward of the operator cage in a longitudinal direction. The frame structure includes a pair of rails that each extends in the longitudinal direction from a first end arranged adjacent a pair of front wheels to a second end arranged adjacent a pair of rear wheels. The plurality of wheels are supported by the frame structure. The plurality of wheels includes the pair of front wheels and the pair of rear wheels. The pair of front wheels are positioned forward of the pair of rear wheels in the longitudinal direction.

First claim

What is claimed is:

1. An electric vehicle comprising:
a frame structure including a pair of rails that each extends in a longitudinal direction;
at least one electric motor supported by the frame structure to generate rotational power to drive movement of the electric vehicle; and
an impact management system supported by the frame structure that is configured to deform in response to impact forces applied thereto in use of the electric vehicle to maintain structural integrity of the pair of rails,
wherein:
the impact management system includes a crash cage having a pair of upright outer posts each arranged outward of a corresponding one of the pair of rails in a lateral direction perpendicular to the longitudinal direction,
each of the pair of upright outer posts extends perpendicular to the corresponding one of the pair of rails,
the crash cage includes a first outrigger structure that extends from a first upright outer post of the pair of upright outer posts to a crash wall located adjacent a forward-most point of the vehicle to define a first arc between the first upright outer post and the crash wall,
the crash cage includes a second outrigger structure that extends from a second upright outer post of the pair of upright outer posts to the crash wall to define a second arc between the second upright outer post and the crash wall, and
each of the first outrigger structure and the second outrigger structure is formed to include a plurality of voids.

2. The electric vehicle of claim 1 , wherein:
the first outrigger structure extends from the first upright outer post to a first end of the crash wall, and
the second outrigger structure extends from the second upright outer post to a second end of the crash wall that is opposite the first end.

3. The electric vehicle of claim 1 , wherein the first outrigger structure defines a first outermost structure of the crash cage in the lateral direction.

4. The electric vehicle of claim 3 , wherein:
the second outrigger structure defines a second outermost structure of the crash cage in the lateral direction, and
the first and second outermost structures are arranged opposite one another.

5. The electric vehicle of claim 1 , wherein:
the crash cage includes a pair of upright inner posts each directly affixed to a corresponding one of the pair of rails and each arranged to extend perpendicular to the corresponding one of the pair of rails,
a first upright inner post of the pair of upright inner posts is arranged inward of the first upright outer post in the lateral direction, and
a second upright inner post of the pair of upright inner posts is arranged inward of the second upright outer post in the lateral direction.

6. The electric vehicle of claim 5 , wherein the first upright inner post is at least partially offset from the corresponding one of the pair of rails in the lateral direction.

7. The electric vehicle of claim 6 , wherein the second upright inner post is at least partially offset from the corresponding one of the pair of rails in the lateral direction.

8. The electric vehicle of claim 1 , wherein:
the crash cage includes a first lower beam coupled to one of the pair of rails and arranged to extend parallel to the one of the rails in the longitudinal direction; and
the first lower beam is offset from the one of the pair of rails in the lateral direction.

9. The electric vehicle of claim 8 , wherein:
the crash cage includes a second lower beam coupled to the other of the pair of rails and arranged to extend parallel to the other of the pair of rails in the longitudinal direction; and
the second lower beam is offset from the other of the pair of rails in the lateral direction.

10. An electric vehicle comprising:
a frame structure including a pair of rails that each extends in a longitudinal direction;
at least one electric motor supported by the frame structure to generate rotational power to drive movement of the electric vehicle; and
an impact management system supported by the frame structure that is configured to deform in response to impact forces applied thereto in use of the electric vehicle to maintain structural integrity of the pair of rails,
wherein the impact management system comprises:
a pair of upright outer posts each arranged outward of a corresponding one of the pair of rails in a lateral direction perpendicular to the longitudinal direction,
a first outrigger structure that extends from a first upright outer post of the pair of upright outer posts to a crash wall located adjacent a forward-most point of the vehicle to define a first arc between the first upright outer post and the crash wall,
a second outrigger structure that extends from a second upright outer post of the pair of upright outer posts to the crash wall to define a second arc between the second upright outer post and the crash wall,
a first upper beam coupled to one of the pair of rails and arranged above the one of the pair of rails in a vertical direction,
a second upper beam coupled to the other of the pair of rails and arranged above the other of the pair of rails in the vertical direction,
a first reinforcement brace coupled in the lateral direction between the first outrigger structure and the first upper beam, and
a second reinforcement brace coupled in the lateral direction between the second outrigger structure and the second upper beam.

11. The electric vehicle of claim 10 , wherein:
the first outrigger structure extends from the first upright outer post to a first end of the crash wall, and
the second outrigger structure extends from the second upright outer post to a second end of the crash wall that is opposite the first end.

12. The electric vehicle of claim 10 , wherein the first outrigger structure defines a first outermost structure of the impact management system in the lateral direction.

13. The electric vehicle of claim 12 , wherein:
the second outrigger structure defines a second outermost structure of the impact management system in the lateral direction, and
the first and second outermost structures are arranged opposite one another.

14. The electric vehicle of claim 10 , wherein the first upper beam is at least partially offset from the one of the pair of rails in the lateral direction.

15. The electric vehicle of claim 14 , wherein the second upper beam is at least partially offset from the other of the pair of rails in the lateral direction.

16. The electric vehicle of claim 10 , wherein the impact management system comprises a pair of upright inner posts each directly affixed to a corresponding one of the pair of rails and each arranged to extend perpendicular to the corresponding one of the pair of rails.

17. The electric vehicle of claim 16 , wherein:
a first upright inner post of the pair of upright inner posts is arranged inward of the first upright outer post in the lateral direction, and
a second upright inner post of the pair of upright inner posts is arranged inward of the second upright outer post in the lateral direction.

18. The electric vehicle of claim 17 , wherein the first upright inner post is at least partially offset from the corresponding one of the pair of rails in the lateral direction.

19. The electric vehicle of claim 18 , wherein the second upright inner post is at least partially offset from the corresponding one of the pair of rails in the lateral direction.

20. An electric vehicle comprising:
a frame structure including a pair of rails that each extends in a longitudinal dir

Assignees

• Workhorse Group Inc

Inventors

• Willison Robert
• Wires Donald L
• Cain Gary

Classifications

• B62D21/15 Primary

  having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body (bumpers B60R19/02; shock absorbers in general F16F) · CPC title

• B60K1/02

  comprising more than one electric motor · CPC title

• B60K7/0007

  the motor being electric · CPC title

• B60T1/02

  acting by retarding wheels · CPC title

• B60K2007/0092

  the motor axle being coaxial to the wheel axle · CPC title