| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an in-vehicle electronic control device which has improved accuracy of map interpolation calculation using a fixed-point map. <P>SOLUTION: The in-vehicle electronic control device includes: a resolution scaling factor calculation means (vehicle speed resolution scaling factor calculation means 140) for calculating a resolution scaling factor at an input map point, at which the number of bits of an input map point section (vehicle speed section) retrieved by a first section retrieving means (vehicle speed section retrieving means 111) becomes equal to or more than the number of bits of an output map point section (engaging torque section) which is retrieved by a second section retrieving means (engaging torque section retrieving means 113). By using the resolution scaling factor calculated by the resolution scaling factor calculation means, resolution of the input map point section (vehicle speed section) retrieved by the first section retrieving means and an input value (vehicle speed) is changed, and interpolation calculation of an output value (engaging torque) is performed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
