Disclosed herein is a rear subframe and suspension system. The subframe may be configured to accommodate one or two electric motors for propelling an automobile. The subframe may be configured such that the motor(s) is inserted through the front end of the subframe. The subframe may substantially surround the motor. Braces may be the coupled to the subframe to secure the motor within the subframe. The subframe may further include built-in motor mounts. An independent rear suspension system and rear steering system may also be coupled to the subframe.

An actively adjustable wheel suspension for the wheels of an axle of a motor vehicle, wherein each wheel is articulated on the body side of the motor vehicle via a plurality of wheel control elements, includes for each wheel on the axle a rotary actuator which is supported on the body side and includes a torsion bar. The two rotary actuators can be activated for active adjustment via a control unit, with the rotary actuators and the torsion bars of the rotary actuators being oriented in motor vehicle longitudinal direction. The rotary actuators include each at least one strut, which is oriented in motor vehicle transverse direction, for torque support.

An electrified vehicle, comprising a chassis having a frame, a first tractive element, and a first suspension system coupled with the first tractive element and the chassis. The first suspension system may comprise a first knuckle coupled with the first tractive element, and a first strut-damper coupled with the first knuckle and the chassis, the first strut-damper extending between the chassis and the first knuckle. The first suspension system may also include a first control arm coupled with the first knuckle and the frame member, and a torsion bar coupled with the chassis at a first end of the torsion bar. The torsion bar may extend in a direction substantially parallel with the frame member, where the torsion bar may be configured to support a portion of a mass of the electrified vehicle in response to displacement of the first tractive element relative to the chassis.

A removable spindle axle improvement using a cap attached to a rim formed along an inside surface of a torsion arm, wherein the cap seals a threaded fastener. The rim used for attachment can be a groove, collar, or a collared washer. In an alternative embodiment, a first O-ring is positioned along an end of a spindle axle tapered body and a second O-ring groove is positioned along an opposite end of the spindle axle tapered body to hermetically seal an area of the spindle axle therebetween. In a further embodiment, a first O-ring is positioned along one end of a spindle axle socket and a second O-ring is positioned along a second end of the spindle axle socket to hermetically seal an area of the spindle axle therebetween.

An embodiment suspension system for a vehicle includes a rocker arm housing coupled to a first end of a lower arm through which a rotation axis passes, a rocker arm having a first end surrounded by the rocker arm housing and a second end disposed toward a center of the rocker arm housing, the rocker arm being rotatable together with the lower arm about the rotation axis, a torsion bar having a first end connected to the second end of the rocker arm and a second end extending along the rotation axis and then coupled to a vehicle body connection member, and a contact protrusion disposed on either the rocker arm housing or the rocker arm, the contact protrusion being configured to come into contact with the other of the rocker arm and the rocker arm housing in accordance with a rotation angle of the rocker arm housing.

An embodiment suspension system for a vehicle includes a rocker arm housing coupled to a first end of a lower arm through which a rotation axis passes, a rocker arm having a first end surrounded by the rocker arm housing and a second end disposed toward a center of the rocker arm housing, the rocker arm being rotatable together with the lower arm about the rotation axis, a torsion bar having a first end connected to the second end of the rocker arm and a second end extending along the rotation axis and then coupled to a vehicle body connection member, and a contact protrusion disposed on either the rocker arm housing or the rocker arm, the contact protrusion being configured to come into contact with the other of the rocker arm and the rocker arm housing in accordance with a rotation angle of the rocker arm housing.

The invention relates to a subframe for a motor vehicle, comprising two front node elements (1) for connecting to a vehicle body, which node elements are spaced from each other in a vehicle transverse direction (y) and are connected to each other by means of a front subframe cross member (3), and comprising at least one functional part (28), in particular a rotary actuator, which extends adjacently to the subframe cross member (3) in a vehicle transverse direction (y), by means of which functional part a torsion can be applied to torsion springs that act on the vehicle wheel suspension. According to the invention, the subframe cross member (3) has an opening, which provides an additional installation space, in which the functional part (28) at least partially protrudes.