| 摘要 |
<P>PROBLEM TO BE SOLVED: To secure sufficient control performance of a traveling motor, by suppressing deterioration in rotation angle detection accuracy, even if there is an output waveform distortion of a resolver due to shape variation of the resolver, in a control device for traveling motor of vehicle. <P>SOLUTION: The traveling motor controller is used for the vehicle having the resolver as a rotation angle sensor of the traveling motor. The controller is provided with an RDC (resolver digital converter) 35 obtaining an angle output value ϕ from rotation detection signals Sa and Sb outputted from the resolver 13, and it controls conduction to the motor based on the angle output value ϕ. The RDC 35 has a gain control part 53, calculating "sin(θ-ϕ)" as control deviation ε, from the rotation detection signals Sa and Sb and the present angle output value ϕ (θ is the electrical angle of resolver), calculating a value obtained by multiplying ε by a gain (=Ka×Kb) as an angular acceleration so as to obtain a next angle output value ϕ, by twice integrating the angular acceleration and reducing the gain, when the motor is determined as rotating at constant rotational speed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
