Control apparatus
AssigneeHonda Motor Co., Ltd.
InventorFumio Egashira
Life of this patent
Estimating the term…
Abstract
If the rotation speed of the output shaft of an engine exceeds a lower limit engine rotation speed, and the rotation speed of an input shaft exceeds a lower limit input shaft rotation speed, the control apparatus of this invention executes cylinder deactivation control of decreasing the number of operating cylinders by stopping the operations of some of a plurality of cylinders based on a cylinder deactivation upper limit engine torque set by referring to a cylinder deactivation control table corresponding to the gear range of an automatic transmission.
Claims4
A control apparatus including an engine control unit configured to control an engine including a plurality of cylinders, and a transmission control unit configured to control an automatic transmission including a torque converter with a lock-up clutch capable of connecting an output shaft of the engine and an input shaft of the automatic transmission,
- wherein the engine control unit comprises:
- an engine rotation speed determination unit configured to determine, based on a detection result of an engine rotation speed detection unit configured to detect a rotation speed of the output shaft of the engine, whether the rotation speed of the output shaft of the engine exceeds a lower limit engine rotation speed;
- and
- an engine storage unit configured to store, for each gear range of the automatic transmission, a cylinder deactivation control table that sets a cylinder deactivation upper limit engine torque determined based on the rotation speed of the output shaft of the engine and a rotation speed of the input shaft of the automatic transmission,
- the transmission control unit comprises an input shaft rotation speed determination unit configured to determine, based on a detection result of an input shaft rotation speed detection unit configured to detect the rotation speed of the input shaft of the automatic transmission, whether the rotation speed of the input shaft exceeds a lower limit input shaft rotation speed corresponding to a gear range of the automatic transmission, and
- if the rotation speed of the output shaft of the engine exceeds the lower limit engine rotation speed, and the rotation speed of the input shaft exceeds the lower limit input shaft rotation speed, the engine control unit executes cylinder deactivation control of decreasing the number of operating cylinders by stopping operations of some of the plurality of cylinders based on the cylinder deactivation upper limit engine torque set by referring to the cylinder deactivation control table corresponding to the gear range of the automatic transmission.
Dependencies are inferred from the claim text.