Driving support device

1 . A driving support device mounted on a vehicle, the driving support device comprising a hardware processor configured to execute a program to implement:

a plurality of first controllers configured to perform driving support control; and

a plurality of second controllers configured to perform the driving support control, a degree of control of the plurality of second controllers being lower than that of the plurality of first controllers, wherein the hardware processor is further configured:

to start the plurality of the first controllers when a first switch is operated,

to start the plurality of second controllers when a second switch different from the first switch is operated,

not to automatically start the plurality of first controllers when an ignition switch of the vehicle is brought into an off state in a state where the plurality of first controllers have started, and then, the ignition switch of the vehicle is brought into an on state, and

to automatically start the plurality of second controllers when the ignition switch of the vehicle is brought into the OFF state in a state where:

the plurality of second controllers have started, and

the ignition switch of the vehicle is brought into the on state.

2 . The driving support device according to claim 1 , wherein

the plurality of first controllers comprise both a controller configured to perform driving support control in a longitudinal direction and a controller configured to perform driving support control in a lateral direction, and

the plurality of second controllers comprise both a controller configured to perform driving support control in a longitudinal direction and a controller configured to perform driving support control in a lateral direction.

3 . The driving support device according to claim 1 , wherein:

a first controller of the plurality of first controllers performs follow-up travel control,

another controller of the plurality of first controllers different from the first controller, performs lane keeping control,

a second controller of the plurality of second controllers performs deceleration control for maintaining an inter-vehicle distance from a preceding vehicle, and

another controller of the plurality of second controllers performs steering control with a lower degree of control than the lane keeping control.

4 . The driving support device according to claim 1 , wherein the plurality of second controllers comprise a speed limit controller configured to start when a third switch capable of setting a speed is operated in a state where a controller of the plurality of second controllers is started.

5 . The driving support device according to claim 4 , wherein;

an image prompting a driver of the vehicle to consent to the start of the speed limit controller is displayed on a display when the third switch is operated, and

the speed limit controller is configured to start when a consent operation is performed by the driver.

6 . The driving support device according to claim 1 , wherein the plurality of second controllers comprise a speed limit controller which is configured to start when a legal speed of a road on which the vehicle is present is recognized in a state where a controller of the plurality of second controllers is started.

7 . The driving support device according to claim 6 , wherein:

when the speed limit controller starts, an image prompting a driver of the vehicle to accept the start of the speed limit controller is displayed on a display when the legal speed is recognized, and

the speed limit controller starts when a consent operation is performed by the driver.

8 . A driving support device mounted on a vehicle, the driving support device comprising a hardware processor configured to execute a program to implement:

a plurality of first controllers configured to perform driving support control; and

a plurality of second controllers configured to perform the driving support control, a degree of control of the plurality of second controllers being lower than that of the plurality of first controllers, wherein the hardware processor is further configured:

to start the plurality of the first controllers when a first switch is operated,

to start the plurality of second controllers when a second switch different from the first switch is operated,

to start the plurality of first controllers when the first switch is operated in the state where the plurality of second controllers have been started, and

to stop the plurality of first controllers and start the plurality of second controllers when the first switch is operated in the state where the plurality of first controllers have been stated.