US 11,654,911 B2
Powertrain device for vehicle
Narihito Hongawara, Aki-gun (JP); Takuya Sugisawa, Aki-gun (JP); Keitaro Kageyama, Aki-gun (JP); Satoshi Fujikawa, Aki-gun (JP); Hiroki Tanabe, Aki-gun (JP); and Shingo Kodama, Aki-gun (JP)
Assigned to Mazda Motor Corporation, Hiroshima (JP)
Appl. No. 17/594,453
Filed by Mazda Motor Corporation, Hiroshima (JP)
PCT Filed Mar. 13, 2020, PCT No. PCT/JP2020/011010
§ 371(c)(1), (2) Date Oct. 15, 2021,
PCT Pub. No. WO2020/217763, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. JP2019-081059 (JP), filed on Apr. 22, 2019.
Prior Publication US 2022/0176961 A1, Jun. 9, 2022
Int. Cl. B60W 30/18 (2012.01); B60W 10/02 (2006.01); B60W 10/06 (2006.01); B60W 10/196 (2012.01); F16H 59/54 (2006.01); F16H 59/56 (2006.01); F16H 59/74 (2006.01); F16H 61/21 (2006.01); F16H 63/30 (2006.01)
CPC B60W 30/18027 (2013.01) [B60W 10/02 (2013.01); B60W 10/06 (2013.01); B60W 10/196 (2013.01); B60W 30/18054 (2013.01); F16H 59/54 (2013.01); F16H 59/56 (2013.01); F16H 59/74 (2013.01); F16H 61/21 (2013.01); F16H 63/3026 (2013.01); B60W 2710/021 (2013.01); B60W 2710/06 (2013.01); B60W 2710/18 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A powertrain device for a vehicle, comprising:
an engine;
an automatic transmission; and
a motive power connection-disconnection clutch arranged between the engine and the automatic transmission, wherein
the automatic transmission includes a plurality of friction fastening elements for selectively switching motive power transmitting paths,
a predetermined friction fastening element among the plurality of friction fastening elements is a travel-start friction fastening element performing slip control in which the travel-start friction fastening element is completely fastened through a slip state in a travel start of the vehicle, and
the motive power connection-disconnection clutch is released at least in an engine start and is fastened earlier than the travel-start friction fastening element in the travel start.