This torsion beam manufacturing method is for manufacturing a torsion beam including a central portion of which a cross-section orthogonal to a longitudinal direction is a closed cross-section having a substantial V-shape or a substantial U-shape at any position in the longitudinal direction, and a shape changing portion which has a connection region leading to the central portion and including a closed cross-section having a shape different from the shape of the closed cross-section of the central portion. This torsion beam manufacturing method has a compression step of thickening at least the connection region through application of a compression force in the longitudinal direction to at least the connection region of a torsion beam material to obtain the torsion beam, the torsion beam material being formed with the central portion and the shape changing portion.

This torsion beam manufacturing method is for manufacturing a torsion beam including a central portion of which a cross-section orthogonal to a longitudinal direction is a closed cross-section having a substantial V-shape or a substantial U-shape at any position in the longitudinal direction, and a shape changing portion which has a connection region leading to the central portion and including a closed cross-section having a shape different from the shape of the closed cross-section of the central portion. This torsion beam manufacturing method has a compression step of thickening at least the connection region through application of a compression force in the longitudinal direction to at least the connection region of a torsion beam material to obtain the torsion beam, the torsion beam material being formed with the central portion and the shape changing portion.

A suspension device for electric vehicle includes a pair of hollow members each connected to an elastic body configured to suspend a vehicle body of the vehicle, the pair of hollow members each configured to house, in an internal space of the hollow member, part of an associated one of a pair of drive shafts, a beam member joined to the pair of hollow members, and at least one of a hollow member joint portion or a beam member joint portion having a projecting portion, the hollow member joint portion constituting a side surface of each of the hollow members, the beam member joint portion constituting a side surface of an end portion of the beam member, the other one of the hollow member joint portion or the beam member joint portion having a recessed portion.

A suspension device for electric vehicle includes a pair of hollow members each connected to an elastic body configured to suspend a vehicle body of the vehicle, the pair of hollow members each configured to house, in an internal space of the hollow member, part of an associated one of a pair of drive shafts, a beam member joined to the pair of hollow members, and at least one of a hollow member joint portion or a beam member joint portion having a projecting portion, the hollow member joint portion constituting a side surface of each of the hollow members, the beam member joint portion constituting a side surface of an end portion of the beam member, the other one of the hollow member joint portion or the beam member joint portion having a recessed portion.

This axle beam is provided with a pair of horizontal plate sections separated vertically from and facing each other; and a vertical plate section extending vertically so as to connect intermediate sections, in a front-rear direction, of the pair of horizontal plate sections. The horizontal plate section on the upper side has a forwardly extending upper front plate section and a rearwardly extending upper rear plate section, and the horizontal plate section on the lower side has a forwardly extending lower front plate section and a rearwardly extending lower rear plate section. One of the upper front plate section, the upper rear plate section, the lower front plate section, and the lower rear plate section is set to have a smaller length in the front-rear direction than the other three plate sections, and among the other three plate sections, the two plate sections which are separated vertically from and facing each other are set to have substantially the same length in the front-rear direction.

This axle beam is provided with a pair of horizontal plate sections separated vertically from and facing each other; and a vertical plate section extending vertically so as to connect intermediate sections, in a front-rear direction, of the pair of horizontal plate sections. The horizontal plate section on the upper side has a forwardly extending upper front plate section and a rearwardly extending upper rear plate section, and the horizontal plate section on the lower side has a forwardly extending lower front plate section and a rearwardly extending lower rear plate section. One of the upper front plate section, the upper rear plate section, the lower front plate section, and the lower rear plate section is set to have a smaller length in the front-rear direction than the other three plate sections, and among the other three plate sections, the two plate sections which are separated vertically from and facing each other are set to have substantially the same length in the front-rear direction.

A modular axle clamp and riser system for use in a suspension system, which includes a top mount having a substantially flat upper surface, a top mount body which extends transversely to the flat upper surface, a pair of opposing ears which extend from the top mount body, and at least one top mount tooth extending from the top mount body in a direction opposite the ears. Also included is a wedge with at least one wedge tooth which matingly engages the at least one top mount tooth, a wedge upper surface, and a pinion angle surface. Further, the wedge defines a pinion angle between the wedge upper surface and the pinion angle surface. Moreover, an axle mount with at least one axle mount tooth which matingly engages at least one of the at least one top mount tooth and the at least one wedge tooth is provided.

A modular axle clamp and riser system for use in a suspension system, which includes a top mount having a substantially flat upper surface, a top mount body which extends transversely to the flat upper surface, a pair of opposing ears which extend from the top mount body, and at least one top mount tooth extending from the top mount body in a direction opposite the ears. Also included is a wedge with at least one wedge tooth which matingly engages the at least one top mount tooth, a wedge upper surface, and a pinion angle surface. Further, the wedge defines a pinion angle between the wedge upper surface and the pinion angle surface. Moreover, an axle mount with at least one axle mount tooth which matingly engages at least one of the at least one top mount tooth and the at least one wedge tooth is provided.

A system and method for adjusting a drivetrain comprising an e-axle on a vehicle comprises accessing route data and compressing the route data into a plurality of linearized segments. Each segment is determined by analyzing points along the route to determine when a set of route data points indicates an uphill, downhill, or flat segment. Using the segments, drivetrain configuration information for a vehicle and a weight of the vehicle, embodiments determine a performance plan that is tailored to the vehicle, including raising the e-axle to reduce rolling resistance on some segments and lowering the e-axle for some segments for increased power for acceleration, improved braking, or increased regenerative capabilities.

A system and method for adjusting a drivetrain comprising an e-axle on a vehicle comprises accessing route data and compressing the route data into a plurality of linearized segments. Each segment is determined by analyzing points along the route to determine when a set of route data points indicates an uphill, downhill, or flat segment. Using the segments, drivetrain configuration information for a vehicle and a weight of the vehicle, embodiments determine a performance plan that is tailored to the vehicle, including raising the e-axle to reduce rolling resistance on some segments and lowering the e-axle for some segments for increased power for acceleration, improved braking, or increased regenerative capabilities.