Abstract: A valve control apparatus sets a certain soft landing start target position to a drive control unit for carrying out driving of a DC motor 2 as a target open position in response to a fully close command, and sets the target open position which the valve control apparatus acquires by gradually decreasing the soft landing start target position to the above-mentioned drive control unit at a time when the difference between an actual open position and the soft landing start target position becomes equal to a first threshold.

Abstract: A starting device of an occupant protective system includes an angular velocity or acceleration sensor 11 for detecting the behavior of a vehicle, processing sections 131 and 132 for performing two or more computations using different subtrahends on a physical quantity based on the output from the sensor 11, a comparing section 133 for comparing absolute values of outputs from the processing sections 131 and 132, a selecting section 134 for selecting the output value of the processing sections 131 and 132 with the minimum absolute value, and a decision section 135 for making a decision as to the necessity for starting the occupant protective system in accordance with the output value selected.

Abstract: When an output pattern (LLL or HHH) due to a signal with a prescribed logic level corresponding to a ground short or instantaneous interruption of an output signal line of Hall ICs 17 is supplied via the output signal lines, and if output patterns based on detection signals supplied before and after the output pattern are found to be different by comparing them, a decision is made that there is a possibility that a shift of a rotor 11 from a target position and counterrotation of the rotor 11 involved with it can occur.

Abstract: When an output pattern (LLL or HHH) due to a signal with a prescribed logic level corresponding to a ground short or instantaneous interruption of an output signal line of Hall ICs 17 is supplied via the output signal lines, and if output patterns based on detection signals supplied before and after the output pattern are found to be different by comparing them, a decision is made that there is a possibility that a shift of a rotor 11 from a target position and counterrotation of the rotor 11 involved with it can occur.

Abstract: A valve control apparatus sets a certain soft landing start target position to a drive control unit for carrying out driving of a DC motor 2 as a target open position in response to a fully close command, and sets the target open position which the valve control apparatus acquires by gradually decreasing the soft landing start target position to the above-mentioned drive control unit at a time when the difference between an actual open position and the soft landing start target position becomes equal to a first threshold.

Abstract: A starting device of an occupant protective system includes an angular velocity or acceleration sensor 11 for detecting the behavior of a vehicle, processing sections 131 and 132 for performing two or more computations using different subtrahends on a physical quantity based on the output from the sensor 11, a comparing section 133 for comparing absolute values of outputs from the processing sections 131 and 132, a selecting section 134 for selecting the output value of the processing sections 131 and 132 with the minimum absolute value, and a decision section 135 for making a decision as to the necessity for starting the occupant protective system in accordance with the output value selected.