Control device for seat belt of vehicle

A control device for a seat belt of a vehicle, the control device comprising:

• a seat belt mechanism configured to retract the seat belt with a driving force of a motor;
• a camera configured to detect a departure of the vehicle from a lane;
• a radar device configured to detect presence or absence of a structure outside the lane;
• and
• an electronic control unit configured not to operate the seat belt mechanism in response to determining a first condition is satisfied and a second condition is not satisfied,
• the first condition being a condition that the camera detects the departure of the vehicle from the lane, and the second condition being a condition that the structure radar device detects the structure, wherein:
• the electronic control unit is configured not to operate the seat belt mechanism in response to determining all of the first condition, the second condition and a third condition are satisfied;
• and
• the third condition is a condition in which the electronic control unit determines that the vehicle is allowed to return to a lane.

A control device for a seat belt of a vehicle, the control device comprising:

• a seat belt mechanism configured to retract the seat belt with a driving force of a motor;
• a camera configured to detect a departure of the vehicle from a lane;
• an acceleration sensor configured to measure an acceleration of the vehicle;
• and
• an electronic control unit configured to operate the seat belt mechanism in response to determining both a first condition and a second condition are satisfied,
• the first condition being a condition that the camera detects the departure of the vehicle from the lane, and the second condition being a condition that the acceleration measured by the acceleration sensor is equal to or larger than a prescribed acceleration;
• and
• the electronic control unit being configured not to operate the seat belt mechanism in response to determining the first condition is satisfied and the second condition is not satisfied.

A control device for a seat belt of a vehicle, the control device comprising:

• a seat belt mechanism configured to retract the seat belt with a driving force of a motor;
• a camera configured to detect a departure of the vehicle from a lane;
• a vehicle speed sensor configured to measure a vehicle speed of the vehicle;
• a load sensor configured to measure a load input to the vehicle;
• a pretensioner that retracts the seat belt earlier than the seat belt mechanism does when the load measured by the load sensor exceeds a prescribed load;
• and
• an electronic control unit configured to:
• lower the prescribed load in response to the camera detecting the departure of the vehicle from the lane;
• and
• operate the seat belt mechanism in response to determining both a first condition and a second condition are satisfied,
• the first condition being a condition that the camera detects the departure of the vehicle from the lane, and the second condition being a condition that the vehicle speed measured by the vehicle speed sensor is equal to or higher than a prescribed speed;
• and
• the electronic control unit being configured not to operate the seat belt mechanism in response to determining the first condition is satisfied and the second condition is not satisfied.

A control device for a seat belt of a vehicle, the control device comprising:

• a seat belt mechanism configured to retract the seat belt with a driving force of a motor;
• a camera configured to detect a departure of the vehicle from a lane;
• a radar device configured to detect presence or absence of a structure outside the lane;
• a load sensor configured to measure a load input to the vehicle;
• a pretensioner that retracts the seat belt earlier than the seat belt mechanism does when the load measured by the load sensor exceeds a prescribed load;
• and
• an electronic control unit configured to:
• lower the prescribed load in response to the camera detecting the departure of the vehicle from the lane;
• and
• operate the seat belt mechanism in response to determining both a first condition and a second condition are satisfied,
• the first condition being a condition that the camera detects the departure of the vehicle from the lane, and the second condition being a condition that the radar device detects the structure;
• the electronic control unit being configured not to operate the seat belt mechanism in response to determining the first condition is satisfied and the second condition is not satisfied.