Patent ID: 9050971
Filing Date: 2015-06-09
Classification: B60K,B60W,B60Y,F16H,Y02T,Y10S

Abstract:
1. A vehicle drive device, comprising: an input member that is drivingly coupled to an internal combustion engine; an output member that is drivingly coupled to a wheel; a first rotating electrical machine; a second rotating electrical machine; and a differential gear unit having at least three rotating elements, wherein the first rotating electrical machine, the input member, and the output member are drivingly coupled to the different rotating elements of the differential gear unit, respectively, without interposing the other rotating elements of the differential gear unit therebetween, the second rotating electrical machine is drivingly coupled to the rotating element of the differential gear unit other than the rotating element to which the first rotating electrical machine is drivingly coupled, without interposing the other rotating elements of the differential gear unit therebetween, a dog engagement device is provided on a power transmission path between the input member and an input rotating element as the rotating element of the differential gear unit to which the input member is drivingly coupled, the engagement device includes a state selecting member that switches a state among three states, which are a first state where the input rotating element and the input member are brought into a coupled state and the input rotating element and a non-rotating member are brought into a non-coupled state, a second state where the input rotating element is brought into the non-coupled state with both the input member and the non-rotating member, and a third state where the input rotating element and the non-rotating member are brought into the coupled state, a control portion controls operation of the state selecting member, the state selecting member is placed between the internal combustion engine and the differential gear unit in the axial direction of the differential gear unit so as to be movable along the axial direction, and is capable of selecting the first position implementing the first state, the second position implementing the second state, and the third position implementing the third state, and the control portion controls the state electing member so that, in specific mode transition between two drive modes that are implemented at two end positions located on both sides in the axial direction out of the first position, the second position, and the third position located along the axial direction, the state selecting member is continuously shifted from one of the two end positions to the other with rotational speeds of both the input rotating element and the input member being zero.