At the present time in the pneumatic field, when a system requires a wide range of force control, servodistributors are currently used. On/off distributors are used when the system is simpler and only a small range of force values are required [1]. The work presented here consists of using on/off distributors in a system which requires a wide range of force values. This has been carried out in order to reduce the cost of complex systems [2-4], because present day distributors are five to ten times cheaper than servodistributors. This paper presents a new control method applied to the electro-pneumatic field. This strategy originates from the hybrid control theory recently developed for the control of asynchronous or synchronous electrical motors, [5, 6]. This control strategy is an improvement of the proposed one in [4]. Based on both cylinder and distributor models, the hybrid control presented here chooses the best state for each on/off distributor to reach the desired force value. Hybrid control is based on a state space model for both the energy modulator and the continuous sub-process. For this model, a control vector, depending on the number of possible configurations for the energy modulator, is defined. Two formal approaches have been developed for choosing a control vector to track the reference state of interest in the state space. Experimental results are presented and discussed.