Abstract: A control system for controlling the slip of a driving wheel of a vehicle senses the speed of at least a driving wheel and the vehicle speed. A slip rate calculator and a differentiator calculate the slip rate and the differential of the slip rate, respectively. An excessive slip rate circuit, a prediction control circuit, and an excessive differential slip rate circuit receive inputs from the calculator and differentiator and operate individually or in concert to detect a slip condition. An output circuit is connected to the excessive slip rate, prediction control, and excessive differential slip rate circuits to output a driving wheel slip control signal when at least one of the above circuits detects a slip condition.

Abstract: A traction control system controls the slip of a driving wheel of a vehicle having at least two driving wheels. The traction control system includes a driving wheel speed sensor for sensing the speed of the driving wheels and for generating a driving wheel speed signal as a function thereof, a vehicle speed sensor for sensing the speed of the vehicle and for generating a vehicle speed signal as a function thereof, and a first selecting circuit, included within the driving wheel speed sensor and operatively connected to said vehicle speed sensor, for generating the driving wheel speed signal in response to the vehicle speed signal. The system also provides for a controller responsive to the driving wheel speed signal from the first selecting circuit for controlling the slip of the driving wheel.

Abstract: A vehicle traction control device includes an engine output controller for deactivating the combustion stroke of an engine in order to control the vehicle traction, a vehicle speed judgment circuit for judging whether or not a speed detected by a vehicle speed detector is lower than a preset speed, and an engine revolution-number judgment circuit for judging whether or not a value detected by an engine revolution-number detector exceeds a preset value, wherein the vehicle speed judgment circuit and the engine revolution-number judgment circuit are connected to the engine output controller so as to deactivate the engine combustion stroke when the vehicle speed is lower than the preset speed and the number of revolution of the engine exceeds the preset value.

Abstract: A slip control method controls slip of the driving wheels of a vehicle. The method includes detecting excess slip of the driving wheels of the vehicle during acceleration, and reducing a driving force to said driving wheels upon detection of said excess slip in order to limit the slip of the driving wheels. The slip control of said driving wheels is inhibited upon detection of the application of a parking brake of the vehicle, or upon the detection of the transmission of the vehicle as being in the reverse gear position.