A signal processing system with rapid signal processing, for example for controlling the transmission of a motor vehicle, with an input module that calls for a desired reaction by emitting a request signal, a signal processing module, and a target module that implements the desired reaction, which, to accelerate processing, provides that several steps are carried out in parallel, such that the said signal processing module comprises a check module and a clock module each of which receives the request signal, the signal processing module also comprises an actuator module acting between the input module and the clock module, the clock module is connected to the output of the check module, and the actuator module is connected to the target module for transmitting the output signal of the signal processing module.