Automobile vehicle battery tray with roll-formed members

A side rail assembly connected to a battery tray in a motor vehicle, the side rail assembly comprising:

• a roll-formed member created from a single metal plate, the roll-formed member having a first plate portion connectable to the battery tray, a second plate portion, a third plate portion, a first end wall, a second end wall, and a central wall, wherein the first plate portion, the second plate portion, the first end wall, and the central wall define a first longitudinal cavity, and wherein the first plate portion, the third plate portion, the second end wall, and the central wall define a second longitudinal cavity,
• wherein the roll-formed member includes a first flange extending from the central wall, and the first flange includes a plurality of notches formed therein.

A battery tray assembly for a battery powered vehicle, the battery tray assembly comprising:

• a battery tray having a side wall;
• and
• an impact absorbing structure having a roll-formed member fixed to the side wall, the roll-formed member created from a single metal plate and having a first plate portion roll-formed to create a first cavity and having a first flange created in a member central wall of the first plate portion, the first flange fixed to the first plate portion, and a second plate portion roll-formed to create a second cavity and having a second flange at an end of the second plate portion fixed to the member central wall.