CONTROL DEVICE FOR VEHICLE

To provide a control device for a vehicle which can suppress a stop and a restart of an engine by IDS control during the rough-road traveling of the vehicle.SOLUTION: When a differential lock switch is switched to an on-state from an off-state (S1: YES), a differential lock mechanism is operated, a center differential gear is in a state that differential operation is not permitted, and a distribution of power to front wheels and rear wheels becomes 50:50. In a state that the differential lock switch is in the on-state, the execution of IDS control is prohibited (S2). The prohibition of the IDS control is continued up until a condition that a deviation of a vehicle 1 from a rough road can be determined, that is, a condition that a difference of torque distributed to the front wheels and the rear wheels is equal to a prescribed value or smaller is established (S4: NO) even after the differential lock switch is switched to the on-state from the off-state (S3: YES).SELECTED DRAWING: Figure 3 【課題】車両の悪路走行中にＩＤＳ制御によりエンジンが停止および再始動されるのを抑制できる、車両用制御装置を提供する。【解決手段】デフロックスイッチがオフからオンに切り替えられると（Ｓ１：ＹＥＳ）、デフロック機構が作動して、センタデフが差動を許容しない状態になり、前輪および後輪への動力の配分が５０：５０になる。デフロックスイッチがオンの状態では、ＩＤＳ制御の実行が禁止される（Ｓ２）。ＩＤＳ制御の実行の禁止は、デフロックスイッチがオフからオンに切り替えられた以後も（Ｓ３：ＹＥＳ）、車両１が悪路から脱したと判定可能な条件、つまり前輪および後輪に配分されるトルク差が所定値以下であるという条件が成立するまで継続される（Ｓ４：ＮＯ）。【選択図】図３