Control device for human-powered vehicle and transmission system for human-powered vehicle

A transmission system for a human-powered vehicle, the transmission system comprising:

• a first transmission device;
• a second transmission device;
• a motor configured to assist in propulsion of the human-powered vehicle;
• and
• an electronic controller configured to control the motor,
• the electronic controller being configured to execute a first operation which causes an output of the motor to change when at least one of the first transmission device and the second transmission device performs a shifting action for shifting a transmission ratio of the human-powered vehicle;
• the electronic controller being configured to execute a second operation which causes the transmission ratio to shift through a predetermined shifting sequence involving a combination of the shifting action of the first transmission device and the shifting action of the second transmission device;
• and
• the electronic controller is configured to restrict execution of one of the first operation and the second operation in a case where the electronic controller is configured to execute the other one of the first operation and the second operation.