Vehicle controller, vehicle control system, vehicle control method, and vehicle control system control method

A vehicle control system, comprising an in-vehicle controller installed in a vehicle and an out-of-vehicle controller arranged outside of the vehicle, wherein

• the in-vehicle controller includes an internal memory device and an internal execution device,
• the out-of-vehicle controller includes an external memory device and an external execution device,
• the internal memory device is configured to store learning data used to control an electronic device installed in the vehicle, and
• the external memory device is configured to store previously-learned learning data, where learning is performed from an initial state of the learning data,
• the internal execution device is configured to execute:
• an obtaining process that obtains a detection value of a sensor that detects a state of the vehicle;
• an update process that updates the learning data through learning with traveling of the vehicle and causes the internal memory device to store the updated learning data;
• an operation process that operates the electronic device based on the detection value obtained by the obtaining process and based on a value of a variable that is related to an operation of the electronic device in the vehicle and is defined by the learning data;
• a detecting process that detects that the learning data stored in the internal memory device has been reset due to occurrence of an anomaly in the vehicle;
• and
• a first transmitting process that transmits, to the out-of-vehicle controller, a request signal that requests for the previously-learned learning data when the detecting process detects that the learning data has been reset,
• the external execution device is configured to execute:
• a first receiving process that receives, from the internal execution device, the request signal transmitted by the first transmitting process;
• and
• a second transmitting process that transmits, to the in-vehicle controller, in response to the request signal received by the first receiving process, a signal indicating the previously-learned learning data stored in the external memory device, and
• the internal execution device is configured to execute:
• a second receiving process that receives the signal that indicates the previously-learned learning data, the signal having been transmitted by the second transmitting process;
• and
• a switching process that causes the internal memory device to store the previously-learned learning data received by the second receiving process instead of the reset learning data.

A vehicle control method, comprising:

• storing, by an internal memory device, learning data used to control an electronic device installed in a vehicle;
• obtaining, by an internal execution device, a detection value of a sensor that detects a state of the vehicle;
• updating, by the internal execution device, the learning data through learning with traveling of the vehicle;
• causing, by the internal execution device, the internal memory device to store the updated learning data;
• operating, by the internal execution device, the electronic device based on the obtained detection value and based on a value of a variable that is related to an operation of the electronic device in the vehicle and is defined by the learning data;
• detecting, by the internal execution device, that the learning data stored in the internal memory device has been reset due to occurrence of an anomaly in the vehicle;
• transmitting, by the internal execution device, to an outside of the vehicle, a request signal that requests for previously-learned learning data, where learning is performed from an initial state of the learning data, when detecting that the learning data has been reset;
• receiving, by the internal execution device, from the outside of the vehicle, the previously-learned learning data corresponding to the request signal;
• and
• causing, by the internal execution device, the internal memory device to store the received previously-learned learning data instead of the reset learning data.

A vehicle control system control method executed by an in-vehicle controller installed in a vehicle and an out-of-vehicle controller arranged outside of the vehicle, the in-vehicle controller including an internal memory device and an internal execution device, the out-of-vehicle controller including an external memory device and an external execution device, the vehicle control system control method comprising:

• storing, by the internal memory device, learning data used to control an electronic device installed in the vehicle;
• storing, by the external memory device, previously-learned learning data, where learning is performed from an initial state of the learning data;
• obtaining, by the internal execution device, a detection value of a sensor that detects a state of the vehicle;
• updating, by the internal execution device, the learning data through learning with traveling of the vehicle
• causing, by the internal execution device, the internal memory device to store the updated learning data;
• operating, by the internal execution device, the electronic device based on the obtained detection value and based on a value of a variable that is related to an operation of the electronic device in the vehicle and is defined by the learning data;
• detecting, by the internal execution device, that the learning data stored in the internal memory device has been reset due to occurrence of an anomaly in the vehicle;
• transmitting, by the internal execution device, to the out-of-vehicle controller, a request signal that requests for the previously-learned learning data when detecting that the learning data has been reset;
• receiving, by the external execution device, from the internal execution device, the transmitted request signal;
• transmitting, by the external execution device, to the in-vehicle controller, in response to the received request signal, a signal indicating the previously-learned learning data stored in the external memory device;
• receiving, by the internal execution device, the transmitted signal that indicates the previously-learned learning data;
• and
• causing, by the internal execution device, the internal memory device to store the received previously-learned learning data instead of the reset learning data.