Vehicle deceleration control system

A vehicle control system in which automated driving control of a vehicle is executed, the vehicle control system comprising:

• an acquiring device which is configured to acquire driving environment information of the vehicle;
• and
• a controller which is configured to execute the automated driving control based on the driving environment information,
• wherein, in the automated driving control, the controller is configured to execute deceleration setting processing in which a target deceleration is set based on first and second deceleration features, wherein:
• the first deceleration feature defines a relationship between a first-class state indicating a state of a slowdown target of the vehicle and deceleration of the vehicle, wherein the first-class state is divided into multiple phases by a first-class boundary;
• and
• the second deceleration feature defines a relationship between a second-class state indicating a state of the vehicle as viewed from a following moving body and deceleration of the following moving body, wherein the second-class state is divided into multiple phases by a second-class boundary,
• wherein, in the deceleration set processing, the controller is configured to:
• specify, based on the driving environment information and the deceleration feature, at least one first-class deceleration indicating deceleration of the vehicle that corresponds to the first-class state;
• calculate for each of the at least one first-class deceleration a first-class plausibility indicating an accuracy of information on the first-class state or the accuracy of information associated with the first-class state;
• specify a first-class minimum value of the at least one first-class deceleration;
• specify, based on the driving environment information and the second deceleration feature, at least one second-class deceleration indicating deceleration of the following moving body corresponding to the second-class state;
• calculate, for each second-class deceleration, a second-class plausibility indicating an accuracy of information on the second-class state;
• specify a second-class minimum value of the at least one second-class deceleration;
• compare the first-class minimum value and the second-class minimum value;
• if the first-class minimum value is equal to or greater than the second-class minimum value, the first-class minimum value is reflected in a first-class reflection degree of 0 to 100%, based on a first-class minimum value phase indicating a phase to which the first-class minimum value belongs in the second deceleration feature and the first-class plausibility corresponding to the first-class minimum value;
• and
• if the first-class minimum value is less than the second-class minimum value, the second-class minimum value is reflected in a second-class reflection degree of 0 to 100%, based on a second-class minimum value phase indicating a phase to which the second-class minimum value belongs in the second deceleration feature and the second-class plausibility corresponding to the second-class minimum value.