The disclosure relates to a longitudinal leaf spring device for suspension of a body of a motor vehicle. and the longitudinal leaf spring device comprises a longitudinally formed leaf spring element and a coupling device that mechanically couples the leaf spring element to a motor vehicle axle. According to the disclosure, a holder device is provided that has a base holder element for fixed connection to a vehicle chassis and a suspension adjustment element that faces the leaf spring element and is fixedly connected to the base holder element. In this case, the leaf spring element is connected in a front region, fixedly to the base holder element, and the front region is provided to come into mechanical bearing with the suspension adjustment element in at least one operating state.

A system and method calculates a vehicle load on a suspension system of a vehicle using a plurality of tilt angle sensors. The angle sensors are attached to the suspension system and configured to measure an angle with respect to gravity. A first angle sensor is configured to measure a first angle. A second sensor configured to measure a second angle. The measured first and second angles are combined to obtain a combined value representative of a vehicle load adjusted for tilt.

A lightweight vehicle includes a first wheel assembly including a first wheel rotatable about an axis, a second wheel assembly including a second wheel rotatable about the axis, a platform including a chassis and a rear suspension assembly coupling the first wheel assembly and the second wheel assembly to the chassis, a first seat coupled to the chassis, and a second seat coupled to the chassis rearward of the first seat. At least a portion of the chassis has a planar shape. The second seat includes a bottom and a back. The back is positioned rearward of at least a portion of the bottom such that the second seat defines a forward-facing seating. At least a portion of the bottom of the second seat is positioned longitudinally rearward of a plane extending vertically upward from the axis about which the first wheel and the second wheel are rotatable.

A lightweight vehicle includes a pair of rear wheel assemblies, one or more front wheel assemblies, a universal assembly platform, and forward facing seating. The universal assembly platform includes a main vehicle chassis, a front suspension system coupled to the main vehicle chassis and to which the one or more front wheel assemblies is mounted, and a rear suspension system coupled to the main vehicle chassis and to which the pair of rear wheel assemblies is mounted. A front distal end of the one or more front wheel assemblies is longitudinally forward of a front end of the main vehicle chassis. The forward facing seating is mounted to the main vehicle chassis such that a portion of a seat bottom of the forward facing seating is located longitudinally rearward of an axis extending through a center of the pair of rear wheel assemblies.

A lightweight vehicle includes a pair of rear wheel assemblies, one or more front wheel assemblies, a universal assembly platform, and forward facing seating. The universal assembly platform includes a planar main vehicle chassis, a front suspension system connected to the planar main vehicle chassis and to which the one or more front wheel assemblies is mounted, and a rear suspension system connected to the planar main vehicle chassis and to which the pair of rear wheel assemblies is mounted. A front distal end of the one or more front wheel assemblies is longitudinally forward of a front end of the planar main vehicle chassis. The forward facing seating is mounted to the planar main vehicle chassis such that a portion of a seat bottom of the forward facing seating is located longitudinally rearward of an axis extending through a center of the pair of rear wheel assemblies.

A clamp group for a vehicle leaf spring suspension is disclosed. The clamp group secures a longitudinally disposed, leaf spring at separate and distinct locations, between which the leaf spring is undamped and spaced away from the top and bottom pads of the clamp group. Shear stress is reduced and the spring remains active throughout its length.

A universal assembly platform for lightweight vehicles, wherein the platform comprises a main vehicle chassis structure, a front suspension system connected to the main vehicle chassis structure and to which one or more front wheel assembly is mountable, and a rear suspension system connected to the main vehicle chassis structure and to which one or more rear wheel assembly is mountable. The rear suspension system is connected to the main vehicle chassis structure such that when the one or more rear wheel assembly is mounted to the rear suspension system a rear wheel of the one or more rear wheel assembly defines the distal end of an overall length of the vehicle.

A universal assembly platform for lightweight vehicles, wherein the platform comprises a main vehicle chassis structure, a front suspension system connected to the main vehicle chassis structure and to which one or more front wheel assembly is mountable, and a rear suspension system connected to the main vehicle chassis structure and to which one or more rear wheel assembly is mountable. The rear suspension system is connected to the main vehicle chassis structure such that when the one or more rear wheel assembly is mounted to the rear suspension system a rear wheel of the one or more rear wheel assembly defines the distal end of an overall length of the vehicle.