Patent ID: 8298120

Claim:
An acceleration shock reduction control system for a vehicle, comprising: a control unit for determining a transition from a decelerating state to an accelerating state, and for controlling ignition of an internal combustion engine to adjust an output of the engine; wherein upon detecting the transition from the decelerating state to the accelerating state, the control unit gives an instruction for an ignition cut which is executed, after a predetermined waiting time period (Tw), over a predetermined time period (Tr, Tr′, Tr″) or a predetermined number of ignition cycles, revolution sensors for detecting a number of rotations of a counter shaft and a number of rotations of a crankshaft, respectively, wherein when the difference in the number of rotations between the counter shaft and the crankshaft reaches a predetermined threshold, it is determined that the predetermined waiting time period elapses, wherein the ignition cut is executed at time (t 2 ,t 2 ′,t 2 ″) when an engine speed has increased to a level that is less than an engine speed reached at time (tx′) when acceleration shock occurs, wherein time (t 2 ,t 2 ′,t 2 ″) is prior to time (tx′), wherein acceleration shock is shock due to backlash taken up after the transition from the decelerating state to the accelerating state and the engine speed at time (tx′) is forced to decrease to a lower engine speed after time (tx′).