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US 11,537,129 B2Granted
Control method and electrical walker
AssigneeWistron Corporation
InventorChun-Wei Wu
Life of this patent
Estimating the term…
Abstract
A control method for an electrical walker is provided. The control method includes measuring a plurality of slope angle values, determining a correction parameter value according to the plurality of slope angle values and generating a corrected driving force value according to the correction parameter value and an original driving force value.
Claims8
A control method, applied for an electrical walker, comprising:
- measuring a plurality of slope angle values;
- calculating a first quartile and a third quartile of the plurality of slope angle values according to the plurality of slope angle values and calculating an average value of the first quartile and the third quartile;
- calculating a difference value between a last measured slope angle value of the plurality of slope angle values and the average value of the first quartile and the third quartile, and dividing an absolute value of the calculated difference value by the average value of the first quartile and the third quartile to generate an error ratio;
- determining a correction parameter value according to the error ratio;
- and
- generating a corrected driving force value according to the correction parameter value and an original driving force value.
3 more elements
An electrical walker, comprising:
- an angle measurement circuit, configured to measure a plurality of slope angle values;
- a first calculation circuit, coupled to the angle measurement circuit and configured to calculate a first quartile and a third quartile of the plurality of slope angle values according to the plurality of slope values, calculate an average value of the first quartile and the third quartile, calculate a difference value between a last measured slope angle value of the plurality of slope angle values and the average value of the first quartile and the third quartile, divide an absolute value of the calculated difference value by the average value of the first quartile and the third quartile to generate an error ratio, and determine the correction parameter value according to the error ratio;
- and
- a second calculation circuit, coupled to the first calculation circuit and configured to generate a corrected driving force value according to the correction parameter value and an original driving force value.
1 more element
Dependencies are inferred from the claim text.