Patent ID: 6097989
Filing Date: 2000-08-01
Classification: F02D,G05B

Abstract:
An adaptive controller, including:a controller which receives an input r(k) and generates an output u(k) which is inputted to a controlled object which generates an output y(k); anda parameter adjuster which receives the output u(k) from the controller and the output y(k) from the controlled object and which adjusts a parameter .theta.(k) of the controller using a parameter adjustment law expressed in a recurrence formula using intermediate values to be calculated by the parameter adjuster, which ensures non-linear system stability;wherein all inputs to be supplied to the parameter adjuster, including the output u(k) from the controller and the output y(k) from the controlled object are multiplied by a coefficient C1 being other than 1, before being inputted to the parameter adjuster, such that a range of change of the intermediate values calculated by the parameter adjuster is restricted.