主权项 |
1. A control system for a hybrid vehicle comprising an engine, a first motor, a power distribution device connected to the engine and the first motor, an output member to which torque is delivered from the power distribution device, and a second motor connected to the output member, wherein
the power distribution device includes a combined planetary gear unit formed by combining a first planetary gear unit and a second planetary gear unit, a rotary element of the combined planetary gear unit includes a reaction element connected to the first motor, a fixed element whose rotation is selectively restricted, an input element connected to the engine, and an output element connected to the output member, the combined planetary gear unit is configured in such a manner that the reaction element is rotated at a speed higher than speeds of the input element and the output element when rotation of the fixed element is restricted, and that the fixed element is rotated at a speed higher than speed of the input element and the output element when the fixed element is allowed to rotate and the reaction element is rotated at a speed lower than the speeds of the input element and the output element, and a clutch is disposed between any of the rotary elements or between the input element and the engine to selectively transmitting torque between the first motor and the engine, the control system comprising: a controller for controlling startup of the engine that is configured to start the stopping engine by operating the first motor to generate torque for rotating the engine while restricting rotation of the fixed element and increasing a torque transmitting capacity of the clutch. |