# US 2009/0267352 A1 · Drive device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2009/0267352 A1 - Document ID: US20090267352A1 - Status: Published application - Kind: A1 - Application number: 12/385,204 - Filed: 2009-04-01 - Published: 2009-10-29 - Earliest claimed: 2008-04-28 - Assignees: Aisin Aw Co., Ltd. - Inventors: Natsuki Sada; Masahiro Tanae; Manabu Miyazawa; Tomohiko Ito; Takafumi Koshida; Tatsuyuki Uechi; Tomoo Atarashi; Daisuke Iimura - Web page: https://patentgrep.com/patent/US20090267352A1 ## CPC - B60K 6/365: with the gears having orbital motion - B60K 6/405: Housings - B60K 6/445: Differential gearing distribution type - B60K 1/02: comprising more than one electric motor - Y02T 10/62: Hybrid vehicles - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A drive device includes an input shaft connected to an engine; a first rotating electrical machine and a second rotating electrical machine; a differential gear unit including a first rotating element, a second rotating element, and a third rotating element; and a control device. The first rotating electrical machine and the differential gear unit are positioned coaxially with the input shaft. The first rotating electrical machine and the second rotating electrical machine are positioned on different axes from each other so as to axially overlap each other. A first component of the control device is positioned lower than the first rotating electrical machine and positioned so that at least a part of the first component overlaps the first rotating electrical machine when viewed in a vertical top plan view. ## Claims ### Claim 1 A drive device, comprising: an input shaft connected to an engine; a first rotating electrical machine and a second rotating electrical machine; a differential gear unit including a first rotating element connected to the first rotating electrical machine, a second rotating element connected to the input shaft, and a third rotating element serving as an output rotating element; and a control device that controls the first rotating electrical machine and the second rotating electrical machine, wherein: the first rotating electrical machine and the differential gear unit are positioned coaxially with the input shaft, the first rotating electrical machine and the second rotating electrical machine are positioned on different axes from each other so as to axially overlap each other, and a first component of the control device is positioned lower than the first rotating electrical machine and positioned so that at least a part of the first component overlaps the first rotating electrical machine when viewed in a vertical top plan view. ### Claim 2 (depends on 1) The drive device according to claim 1, further comprising: a driving output device having an input gear connected to the output rotating element in order to transmit a rotation driving force of the input gear to an output shaft, wherein: a rotation axis of the input gear is positioned lower than the input shaft, and the first component is positioned so that at least a part of the first component overlaps the input gear in an up-down direction. ### Claim 3 (depends on 2) The drive device according to claim 2, wherein a rotation shaft of the second rotating electrical machine is positioned higher than the input shaft and positioned on a same side as the output shaft with respect to a vertical plane extending through the input shaft. ### Claim 4 (depends on 2) The drive device according to claim 2, wherein the input shaft, the differential gear unit, and the first rotating electrical machine are sequentially arranged in this order from an engine side. ### Claim 5 (depends on 1) The drive device according to claim 1, wherein a second component of the control device, which is different from the first component, is positioned so that at least a part of the second component overlaps the first rotating electrical machine in an up-down direction. ### Claim 6 (depends on 1) The drive device according to claim 1, wherein: the control device includes an inverter unit that performs a conversion between direct current power and alternating current power, and the first component is the inverter unit. ### Claim 7 (depends on 1) The drive device according to claim 1, further comprising: a case having a first chamber and a second chamber that are separated from each other in a fluid-tight manner, wherein: the first chamber accommodates the first rotating electrical machine, the second rotating electrical machine, and the differential gear unit, and the second chamber accommodates the control device. ### Claim 8 (depends on 3) The drive device according to claim 3, wherein the input shaft, the differential gear unit, and the first rotating electrical machine are sequentially arranged in this order from an engine side. ### Claim 9 (depends on 2) The drive device according to claim 2, wherein a second component of the control device, which is different from the first component, is positioned so that at least a part of the second component overlaps the first rotating electrical machine in the up-down direction. ### Claim 10 (depends on 2) The drive device according to claim 2, wherein: the control device includes an inverter unit that performs a conversion between direct current power and alternating current power, and the first component is the inverter unit. ### Claim 11 (depends on 2) The drive device according to claim 2, further comprising: a case having a first chamber and a second chamber that are separated from each other in a fluid-tight manner, wherein: the first chamber accommodates the first rotating electrical machine, the second rotating electrical machine, and the differential gear unit, and the second chamber accommodates the control device. ### Claim 12 (depends on 8) The drive device according to claim 8, wherein a second component of the control device, which is different from the first component, is positioned so that at least a part of the second component overlaps the first rotating electrical machine in the up-down direction. ### Claim 13 (depends on 12) The drive device according to claim 12, wherein: the control device includes an inverter unit that performs a conversion between direct current power and alternating current power, and the first component is the inverter unit. ### Claim 14 (depends on 13) The drive device according to claim 13, further comprising: a case having a first chamber and a second chamber that are separated from each other in a fluid-tight manner, wherein: the first chamber accommodates the first rotating electrical machine, the second rotating electrical machine, and the differential gear unit, and the second chamber accommodates the control device. ### Claim 15 (depends on 3) The drive device according to claim 3, wherein a second component of the control device, which is different from the first component, is positioned so that at least a part of the second component overlaps the first rotating electrical machine in the up-down direction. ### Claim 16 (depends on 3) The drive device according to claim 3, wherein: the control device includes an inverter unit that performs a conversion between direct current power and alternating current power, and the first component is the inverter unit. ### Claim 17 (depends on 3) The drive device according to claim 3, further comprising: a case having a first chamber and a second chamber that are separated from each other in a fluid-tight manner, wherein: the first chamber accommodates the first rotating electrical machine, the second rotating electrical machine, and the differential gear unit, and the second chamber accommodates the control device. ### Claim 18 (depends on 8) The drive device according to claim 8, wherein: the control device includes an inverter unit that performs a conversion between direct current power and alternating current power, and the first component is the inverter unit. ### Claim 19 (depends on 8) The drive device according to claim 8, further comprising: a case having a first chamber and a second chamber that are separated from each other in a fluid-tight manner, wherein: the first chamber accommodates the first rotating electrical machine, the second rotating electrical machine, and the differential gear unit, and the second chamber accommodates the control device.