Motor Controller
First Claim
1. A motor controller for controlling output of a motor by switching on and off switching elements arranged in a power supply line to said motor by control signals, comprisinga current command value determination part for determining current command values corresponding to a target output of said motor;
- a calculation part for determining target applied voltage values to said motor corresponding to said current command values;
a storage part for storing values corresponding to predetermined equivalent resistance which corresponds to power loss generated by switching on and off said switching elements;
a current determination part for determining values of current flowing in said switching elements;
a calculation part for determining voltage command values by adding voltage drop values determined from the values corresponding to said equivalent resistance and the values of current flowing in said switching elements to said target applied voltage values; and
a signal generating part for generating said control signals according to said voltage command values.
1 Assignment
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Accused Products
Abstract
A motor controller stores values corresponding to predetermined equivalent resistance which corresponds to power loss generated by switching on and off switching elements. Voltage command values are determined by adding voltage drop values determined from values corresponding to the equivalent resistance and values of current flowing in the switching elements to target applied voltage values corresponding to current command values which correspond to target output of a motor. The switching elements arranged in a power supply line to the motor are switched on and off by control signals generated according to the voltage command values.
18 Citations
4 Claims
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1. A motor controller for controlling output of a motor by switching on and off switching elements arranged in a power supply line to said motor by control signals, comprising
a current command value determination part for determining current command values corresponding to a target output of said motor; -
a calculation part for determining target applied voltage values to said motor corresponding to said current command values; a storage part for storing values corresponding to predetermined equivalent resistance which corresponds to power loss generated by switching on and off said switching elements; a current determination part for determining values of current flowing in said switching elements; a calculation part for determining voltage command values by adding voltage drop values determined from the values corresponding to said equivalent resistance and the values of current flowing in said switching elements to said target applied voltage values; and a signal generating part for generating said control signals according to said voltage command values. - View Dependent Claims (2, 3, 4)
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Specification