POWER TRANSMISSION DEVICE OF HYBRID VEHICLE AND HYBRID SYSTEM

摘要

A power transmission device of a hybrid vehicle includes: a transmission including a planetary mechanism including a plurality of transmission rotational elements, one of the transmission rotational elements being connected to a rotary shaft of an engine; a differential device including a plurality of differential rotational elements including one connected to one of the transmission rotational elements of the transmission, one connected to a rotary shaft of a first rotary machine, and one connected to a rotary shaft of a second rotary machine and a driven wheel; a transmission control device configured to control the transmission; and a control device configured to control the first rotary machine such that pinion differential rotation of the transmission or the differential device is set to be not higher than a predetermined value at a time unique motor EV driving is performed only by power of the second rotary machine.

主权项

1. A power transmission device of a hybrid vehicle, comprising:
a transmission including a planetary mechanism including a plurality of transmission rotational elements configured to perform differential rotation, one of the transmission rotational elements being connected to a rotary shaft of an engine; a differential device including a plurality of differential rotational elements configured to perform differential rotation, the differential rotational elements including:
a differential rotational element connected to one of the transmission rotational elements of the transmission;a differential rotational element connected to a rotary shaft of a first rotary machine; anda differential rotational element connected to a rotary shaft of a second rotary machine and a driven wheel; a transmission control device configured to control the transmission into a neutral state in which power is not able to be transmitted between an input and an output of the transmission or into a state in which the power is able to be transmitted between the input and the output; and a control device configured to control the first rotary machine such that pinion differential rotation of the transmission or the differential device is set to be not higher than a predetermined value at a time unique motor EV driving is performed only by power of the second rotary machine.