 abnormality is detected by a value calculated by the first control means and a value calculated by the second control means being compared.  0. An electric power steering apparatus according to claim 0, further comprising second control means additional to the first control means, wherein the second control means performs the same motor angular position calculation as the first control means and the first control means and the second control means have direction prohibiting means for restricting rotation of the brushless motor on the basis of a steering input of a driver.  0. An electric power steering apparatus according to claim 0, wherein the motor angular position detecting means is a resolver and there are further provided sample-hold circuits for sample-holding outputs from the resolver and the first control means outputs a reference clock pulse to the resolver and a sample-hold timing pulse to the sample-hold circuits.  0. An electric power steering apparatus according to claim 0, wherein the motor angular position detecting means is a resolver and there are further provided sample-hold circuits for sample-holding outputs from the resolver and the first control means or the second control means outputs a reference clock pulse to the resolver and a sample-hold timing pulse to the sample-hold circuits.  Description  FIELD OF THE INVENTION  This invention relates to a