US 11,679,751 B2
Method and system for adjusting a minimum driver demand wheel torque
Yanan Zhao, Ann Arbor, MI (US); Jason Meyer, Canton, MI (US); Rajit Johri, Canton, MI (US); Mark Steven Yamazaki, Canton, MI (US); and Jeffrey Allen Doering, Canton, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Jul. 7, 2020, as Appl. No. 16/922,165.
Prior Publication US 2022/0009474 A1, Jan. 13, 2022
Int. Cl. B60W 20/10 (2016.01); B60W 30/18 (2012.01); B60W 10/08 (2006.01); B60W 10/06 (2006.01); B60W 50/00 (2006.01)
CPC B60W 20/10 (2013.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 30/18063 (2013.01); B60W 30/18072 (2013.01); B60W 2050/0026 (2013.01); B60W 2510/0642 (2013.01); B60W 2510/1005 (2013.01); B60W 2520/10 (2013.01); B60W 2520/30 (2013.01); B60W 2540/10 (2013.01); B60W 2720/30 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for operating a vehicle, comprising:
mapping driver demand wheel torque, where the driver demand wheel torque is determined from a driver demand wheel torque input device;
selecting a minimum wheel torque from a plurality of torques;
including the minimum wheel torque in the relationship between the mapped driver demand wheel torque and the driver demand wheel torque request;
adjusting torque of one or more powertrain propulsion sources via a controller as a function of the relationship between the mapped driver demand wheel torque and the driver demand wheel torque request to generate consistent wheel torque; and
generating the consistent wheel torque during vehicle coasting conditions, vehicle creep conditions, and transitions between vehicle coasting conditions and vehicle creep conditions irrespective of which of the one or more powertrain propulsion sources generates the consistent wheel torque.