Abstract: A test bench for carrying out aerodynamic measurements on vehicles is equipped with at least one contact surface for detecting the vehicle weight, a running belt for simulating the roadway moving under the vehicle, and at least one measuring device for determining forces acting upon the vehicle. According to the invention, the moving belt for simulating the roadway also forms the at least one contact surface for detecting the vehicle weight, and the running belt is in its entirety supported by a weighing plate, which is disposed via a bearing device relative to a stationary environment. At least one measuring device determines the forces acting upon the vehicle as a function of the movement of the weighing plate relative to the stationary environment.

Abstract: A platform balance includes a first frame support and a second frame support movable relative to the first frame support. At least one counter balance assembly is provided to support the static weight of the first frames support and elements connected thereto. The counterbalance assembly includes a beam and a pivot assembly allowing the beam to pivot. A weight is selectively positionable on the beam. A compliant assembly is supported by the beam on a portion thereof on a side of the pivot assembly opposite the weight. The compliant assembly supports the first frame support. The compliant assembly includes a second pivot assembly and a planar motion assembly coupled to the second pivot assembly.

Abstract: A test bench for carrying out aerodynamic measurements on vehicles is equipped with at least one contact surface for detecting the vehicle weight, a running belt for simulating the roadway moving under the vehicle, and at least one measuring device for determining forces acting upon the vehicle. According to the invention, the moving belt for simulating the roadway also forms the at least one contact surface for detecting the vehicle weight, and the running belt is in its entirety supported by a weighing plate, which is disposed via a bearing device relative to a stationary environment. At least one measuring device determines the forces acting upon the vehicle as a function of the movement of the weighing plate relative to the stationary environment.