Transmission with integrated electric drivetrain
A transmission for a work vehicle includes a transmission housing forming an enclosure for one or more transmission components, a reservoir in a lower portion of the transmission housing, the reservoir including transmission fluid, a first electric machine positioned within an upper portion of the transmission housing, an electronic component positioned at least partially within the reservoir, and a first busbar connected between the first electric machine and the electronic component. The first busbar includes a vertical portion extending from a location near the first electric machine to a location near the electronic component.
1 . A transmission for a work vehicle, comprising:
a transmission housing forming an enclosure for one or more transmission components;
a reservoir in a lower portion of the transmission housing, the reservoir including transmission fluid;
a first electric machine positioned within an upper portion of the transmission housing;
an electronic component positioned at least partially within the reservoir; and
a first busbar connected between the first electric machine and the electronic component, the first busbar including a vertical portion extending from a location near the first electric machine to a location near the electronic component.
2 . The transmission of claim 1 , further comprising:
a second electric machine positioned within an upper portion of the transmission housing; and
a second busbar connected between the second electric machine and the electronic component, the second busbar including a vertical portion extending from a location near the second electric machine to a location near the electronic component.
3 . The transmission of claim 1 , wherein transmission fluid from the first electric machine flows down the first busbar to the electronic component and into the reservoir.
4 . The transmission of claim 1 , wherein the first busbar is a solid conductor busbar.
5 . The transmission of claim 1 , wherein the electronic component is a power electronics device.
6 . The transmission of claim 1 , wherein the electronic component is a motor drive which can provide one or more of inversion and active rectification.
7 . The transmission of claim 1 , wherein the busbar includes a horizontal portion and an inclined portion.
8 . The transmission of claim 1 , wherein the first electric machine is positioned above and over the electronic component.
9 . The transmission of claim 1 , wherein the first electric machine is a motor-generator.
10 . The transmission of claim 1 , further comprising:
a conduit positioned between the electronic component and the transmission housing, the conduit including a radial seal between the conduit and the transmission housing and an axial seal between the conduit and the electronic component, and the conduit forming a sealed passageway from the electronic component to an exterior of the transmission housing.
11 . A work vehicle including a transmission, comprising:
a transmission housing forming an enclosure for one or more transmission components;
a reservoir in a lower portion of the transmission housing, the reservoir including transmission fluid;
a first electric machine positioned within an upper portion of the transmission housing;
an electronic component positioned at least partially within the reservoir; and
a first busbar connected between the first electric machine and the electronic component, the first busbar including a vertical portion extending from a location near the first electric machine to a location near the electronic component.
12 . The work vehicle of claim 11 , further comprising:
a second electric machine positioned within an upper portion of the transmission housing; and
a second busbar connected between the second electric machine and the electronic component, the second busbar including a vertical portion extending from a location near the second electric machine to a location near the electronic component.
13 . The work vehicle of claim 11 , wherein transmission fluid from the first electric machine flows down the first busbar to the electronic component and into the reservoir.
14 . The work vehicle of claim 11 , wherein the first busbar is a solid conductor busbar.
15 . The work vehicle of claim 11 , wherein the electronic component is a power electronics device.
16 . The work vehicle of claim 11 , wherein the electronic component is a motor drive which can provide one or more of inversion and active rectification.
17 . The work vehicle of claim 11 , wherein the busbar includes a horizontal portion and an inclined portion.
18 . The work vehicle of claim 11 , wherein the first electric machine is positioned above and over the electronic component.
19 . The work vehicle of claim 11 , wherein the first electric machine is a motor-generator.
20 . The work vehicle of claim 11 , further comprising:
a conduit positioned between the electronic component and the transmission housing, the conduit including a radial seal between the conduit and the transmission housing and an axial seal between the conduit and the electronic component, and the conduit forming a sealed passageway from the electronic component to an exterior of the transmission housing.