CONTROL SYSTEM FOR ACCELERATION SENSOR AND VEHICLE CONTROL

摘要

PURPOSE:To prevent the generation of error in the digital value after A/D conversion even if the constant voltage used as the standard voltage in the case where the output of an electrostatic capacity type or electrostatic servo type accelerating speed sensor is A/D-converted varies or the variation is generated through the lapse of time. CONSTITUTION:The output of an electrostatic capacity type or eiectrostatic servo type accelerating speed sensor 21 is A/D-converted by the A/D converter 23 of a microcomputer 25 through a terminal 28, and inputted into a control circuit 24. When a constant voltage circuit 22 is used in common for the power source for the sensor 21 and the power source for the standard voltage used in the A/D converter 23, both of the output of the sensor 21 and the standard voltage of the A/D converter 23 are provided with the power source voltage depending property.