Due　to　the　characteristic　of　non-linear　dynamic,　time-delays,　external　disturbance　and　parameter　uncertainty,　the　automated　clutch　is　difficult　to　be　controlled　precisely.　A　sliding　mode　controller　was　introduced　to　control　the　automated　clutch　effectively.　The　sliding　and　global　stability　conditions　were　formulated　and　analyzed　in　terms　of　Lyapunov　full　quadratic　form.　The　rapid　control　prototyping　of　automated　clutch　was　built　based　on　dSPACE.　The　experiment　results　show　the　controller　is　effective　and　robust　to　the　parametric　variation　and　external　disturbance.