An electronic module for a transmission control unit may include a printed circuit board that has an electronic component. The electronic component may be electrically connected to a surface of the printed circuit board at least at one point. At least a portion of the electronic component that includes the at least one point may be covered with a protective coating. The protective coating may include a media-tight protective lacquer. The electronic component may be a semiconductor component contained in a housing.

A control device switches a shift range by driving a motor and moving a detent roller in a parking lock system including an electric actuator having the motor and a detent mechanism. A control unit of the control device includes a drive control part, a position determination part and a range determination part. The drive control part controls driving of the motor. When the detent roller is moved to a target valley portion corresponding to the target range, a position determination part determines that the detent roller has passed over a peak portion based on sensor information. The range determination part is configured to estimate that the detent roller has reached the range of the target range corresponding to the target range at a peak passing over determination timing when it is determined that the detent roller has passed over the peak portion.

A control method and apparatus for a controlled apparatus, and a storage medium. The method includes: obtaining a corrected elastic coefficient of a moving component in a transmission apparatus and a driving force; determining a speed difference value and a rotational speed difference value between the driving apparatus and a controlled apparatus; determining a deformation amount of the transmission apparatus according to the speed difference value or the rotational speed difference value; determining a second speed and a second rotational speed of the controlled apparatus according to a first speed of the driving apparatus and the speed difference value, and according to a first rotational speed of the driving apparatus and the rotational speed difference value, respectively; determining a transmission force according to the corrected elastic coefficient and the deformation amount; and controlling the controlled apparatus to move according to at least one of the parameters solved above.