US 12,441,322 B1
Lock-up clutch controller
Nobuhide Kato, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Apr. 28, 2025, as Appl. No. 19/190,886.
Claims priority of application No. 2024-090730 (JP), filed on Jun. 4, 2024.
Int. Cl. B60W 30/188 (2012.01); B60W 10/02 (2006.01); B60W 10/06 (2006.01)
CPC B60W 30/188 (2013.01) [B60W 10/026 (2013.01); B60W 10/06 (2013.01); B60W 2510/0275 (2013.01); B60W 2510/0283 (2013.01); B60W 2510/0638 (2013.01); B60W 2710/024 (2013.01); B60W 2710/0666 (2013.01); B60W 2710/0672 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A lock-up clutch controller comprising:
a lock-up clutch configured to directly couple an engine to an automatic transmission without via a torque converter interposed between the engine and the automatic transmission; and
one or more processors configured to control engagement and disengagement of the lock-up clutch,
the one or more processors being configured to, in a middle of the engagement of the lock-up clutch, set a lower limit value of engine torque based on engagement torque of the lock-up clutch, and control the engine to inhibit the engine torque from falling below the lower limit value.