Control system, control device, control method, and non-transitory storage medium

A control device configured to control motion of a vehicle in cooperation with a power train system, the control device comprising

• a processor configured to:
• execute processing according to specific information that is received from the power train system and that enables identification of a control shift range;
• and
• receive, from the power train system, the specific information that enables identification of the control shift range of an automatic transmission at a time at which operation of a clutch is started, when the power train system includes a manual transmission, detects the operation of the clutch, and detects that a shift lever of the manual transmission is in a neutral position, wherein
• the control shift range is converted from a gear stage selected by the shift lever.

A control method for a power train system that includes a clutch position sensor, a processor, and a manual transmission, the control method comprising:

• converting, by the processor configured to control the power train system, a gear stage selected by a shift lever of the manual transmission to a control shift range of an automatic transmission;
• sending, by the processor, specific information that enables identification of the converted control shift range to a control device configured to control motion of a vehicle in cooperation with the power train system;
• and
• holding, when operation of a clutch is detected by the clutch position sensor configured to detect operation of the clutch, the specific information that enables identification of the control shift range at a time at which the operation of the clutch is started, as the specific information to be sent to the control device.