Vehicle drive device

摘要

A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.

主权项

1. A vehicle drive device comprising:
an input member drivingly connected to an internal combustion engine; a rotary electric machine; a speed change mechanism drivingly connected to the rotary electric machine; an output member drivingly connected to the speed change mechanism and wheels; an engagement device capable of changing a state of engagement between the input member and the speed change mechanism; a hydraulic pump that discharges oil by being driven by the internal combustion engine or the rotary electric machine; a first hydraulic pressure control device that controls hydraulic pressure supplied from the hydraulic pump and supplies the controlled hydraulic pressure to the speed change mechanism; a second hydraulic pressure control device that is provided separately from the first hydraulic pressure control device, and that controls the hydraulic pressure supplied from the hydraulic pump and supplies the controlled hydraulic pressure to the engagement device; a case that houses the rotary electric machine, the speed change mechanism, the engagement device, and the hydraulic pump; wherein
at least the engagement device is housed in a first housing space formed by the case,the second hydraulic pressure control device is provided at a part of the case forming the first housing space, andthe speed change mechanism is housed in a speed change mechanism housing space formed by the case, and the case comprises:
a first case portion forming the first housing space and which provides the second hydraulic pressure control device; anda second case portion forming the speed change mechanism housing space and which provides the first hydraulic pressure control device; a first oil retaining portion capable of retaining oil in the second case portion; a second oil retaining portion capable of retaining oil in the first case portion; and a discharge oil passage that discharges oil from the second oil retaining portion to the first oil retaining portion, the oil retained in the second oil retaining portion being oil to be supplied to the engagement device.