Electric vehicle construction methods for frontal impact

摘要

A vehicle frame includes an inverter protection brace extending between front and rear sub-frames located below and in front of side under frame members. A gusset of the brace strongly connects to the front sub-frame to load a beam section without overloading attaching bolts. The brace has a bolted connection attaches to the rear sub-frame. The brace deforms forward of the bolted connection creating a safety cage around an inverter during frontal impacts. A reinforcement bracket attaches to the side frame under members to define a pocket for temporarily catching the rear sub-frame. Ramps connect to the reinforcement bracket allowing sliding of the rear sub-frame rearward, and direct movement downwardly beneath a battery assembly. A catching surface defined on the ramp engages at least one rear sub-frame attached structure. A tether connects between the pair of side frame under-members and the rear sub-frame for improving the interaction of the rear sub-frame against the ramps.