US 2013/0093402 A1 · INDUCTIVE LOAD CONTROLLING DEVICE

Abstract

An inductive load controlling device in which a target current value is reached in a short time while suppressing overshoot, undershoot, and ringing, including a target value filter that receives a target current value of electric current to be supplied to the load and exhibits differential characteristics using a plurality of filter parameters; an inductive load controlling section that controls load current to be supplied to the load based on a filter output from the target value filter; a parameter memory section that stores parameters for the filter corresponding to a plurality of selection conditions; a selection condition detecting section that detects the selection conditions; and a parameter selection processing section that selects the filter parameters fitting to the selection condition out of the parameter memory section based on the selection condition detected by the selection condition detecting section and delivers the filter parameters to the filter.

Claims17

Dependent claims

An inductive load controlling device for controlling an inductive load, the inductive load controlling device comprising:

a target value filter that receives a target current value of electric current to be supplied to the inductive load, exhibits differential characteristics using a plurality of filter parameters, and outputs a filter output;
an inductive load controlling section that controls load current to be supplied to the inductive load based on the filter output;
a parameter memory section that stores the filter parameters, said filter parameters corresponding to a plurality of selection conditions;
a selection condition detecting section that detects the selection conditions;
and
a parameter selection processing section that selects the filter parameters based on the selection conditions and delivers the filter parameters to the target value filter.

3 more elements

An inductive load controlling device for controlling an inductive load, the inductive load controlling device comprising:

a target value filter that receives a target current value of electric current to be supplied to the inductive load, exhibits differential characteristics using a plurality of filter parameters, and outputs a filter output;
an inductive load controlling section that includes a current detecting section that detects load current flowing in the inductive load and a PI (Proportional Integral) compensator that performs compensation processing using a plurality of compensation parameters to compensate a deviation of the load current from the filter output, and controls load current to be supplied to the inductive load;
a parameter memory section that stores the filter parameters and the compensation parameters, the filter parameters and compensation parameters corresponding to a plurality of selection conditions;
a selection condition detecting section that detects the selection conditions;
and
a parameter selection processing section that selects the filter parameters and the compensation parameters based on the selection conditions and delivers the filter parameters and the compensation parameters to the target value filter and the PI compensator.

3 more elements

A method for controlling an inductive load, the method comprising the steps of:

receiving in a target value filter a target current value of electric current to be supplied to the inductive load;
detecting a load current flowing in the inductive load;
storing filter parameters corresponding to a plurality of selection conditions;
detecting values of the selection conditions;
selecting the filter parameters corresponding to the detected values;
delivering the filter parameters to the target value filter;
outputting from the filter a filter output based upon differential characteristics using the filter parameters;
and
controlling the load current to be supplied to the inductive load based on the filter output.

6 more elements

Dependencies are inferred from the claim text.

Inductive load controlling device

Life of this patent

Inductive load controlling device

Life of this patent

Abstract

Claims17