US 7,678,016 B2 · Control apparatus for vehicle

Abstract

A vehicle having, in a power transmission path, a continuously variable transmission mechanism and a clutch mechanism, whose torque capacity is smaller than that of the continuously variable transmission mechanism. The vehicle also has a control system to prevent a large torque capacity difference with the continuously variable transmission mechanism and clutch mechanism and to prevent an unnecessary slip of the clutch mechanism by setting an engagement force of the clutch mechanism based on the torque capacity of the continuously variable transmission mechanism. There is also avoided a decline of the learning accuracy of the clutch mechanism by prohibiting a learning control of the clutch mechanism when an engagement force of the clutch mechanism is set based on the torque capacity of the continuously variable transmission mechanism.

Claims20

Dependent claims

A control apparatus for a vehicle equipped with a continuously variable transmission mechanism and a clutch mechanism in a power transmission path for transmitting a power from a power source, comprising:

an engagement force controller for setting a clutch engagement force of said clutch mechanism based on a torque capacity of said continuously variable transmission mechanism;
a learning controller for learning control of said clutch engagement force;
a first torque capacity setting device for setting a first torque capacity of said continuously variable transmission mechanism based on an input torque from said power source;
and
a second torque capacity setting device for setting a second torque capacity of said continuously variable transmission mechanism based on a vehicle condition,
wherein said learning controller prohibits the learning control of the clutch engagement force in the case where said second torque capacity is larger than said first torque capacity.

3 more elements

Dependencies are inferred from the claim text.

Control apparatus for vehicle

Life of this patent

Control apparatus for vehicle

Life of this patent

Abstract

Claims20