Abstract: To be able to simulate any desired kind of driving state with a test vehicle it is envisioned to connect an active secondary vehicle 2 to the front or rear of the test vehicle 1, and wherein the secondary vehicle 2 is equipped with its own drive and load device 3 by which the test vehicle 1 is braked and/or pushed additionally to its own deceleration and/or acceleration.

Abstract: To simplify the development of a hybrid vehicle the invention envisions simulating the hybrid vehicle by using a test vehicle 1 comprising a first axle 5 that is powered by a combustion engine and a second passive, non-powered axle 6, and wherein the axle that is present in the real hybrid vehicle and powered by an electric motor is simulated on the test vehicle 1 by an active secondary vehicle 2 that is hooked up to the test vehicle 1 and that is equipped with its own drive 3 and additionally to the combustion engine brakes and/or pushes the test vehicle 1, and wherein the secondary vehicle 2 is connected with a control device 7 of the test vehicle 1.

Abstract: A test bed for electrical energy storage systems for vehicles, in particular for traction batteries for hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles is equipped with a test system (3) for conducting electrical tests of the energy storage system (1), optionally at least one conditioning unit (4) for the climate control of the energy storage system (1), at least one data collection and analysis system, and optionally at least one safety system. In order to be able to test energy storage systems in a manner approximating their use as closely as possible in that all real influences on the energy storage system, for example, a traction battery for electric or hybrid vehicles, can be simulated with the simultaneous interaction of thermal, electrical, and mechanical influencing factors without the need to conduct tests in a real-world environment, at least one actuator (5) is additionally provided for the mechanical stimulation of the energy storage system (1).