US 11,752,877 B2
Control device of vehicle
Keiji Gokyu, Toyota (JP); and Tomoharu Maeda, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Mar. 30, 2021, as Appl. No. 17/216,856.
Claims priority of application No. 2020-089799 (JP), filed on May 22, 2020.
Prior Publication US 2021/0362605 A1, Nov. 25, 2021
Int. Cl. B60L 7/18 (2006.01); B60L 15/20 (2006.01)
CPC B60L 7/18 (2013.01) [B60L 15/2009 (2013.01); B60L 2240/14 (2013.01); B60L 2240/68 (2013.01); B60L 2250/26 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A control device of a vehicle, the control device comprising:
a deceleration control unit that performs a free running deceleration control that controls a free running deceleration that is a deceleration of a vehicle when transition occurs from an operation state in which an accelerator pedal or a brake pedal is operated to a non-operation state in which neither the accelerator pedal nor the brake pedal is operated;
an index deriving unit that derives a transition phase perceptual risk index that is a perceptual risk index when transition occurs from the operation state to the non-operation state in a case in which an index of a perceptual risk when an own vehicle approaches a preceding vehicle is the perceptual risk index; and
a relationship adjusting unit that adjusts a relationship between the perceptual risk index and the deceleration,
wherein in the relationship, when the perceptual risk index is equal to or less than a reference perceptual risk index, the deceleration is set to be equal to a lower limit deceleration, and when the perceptual risk index is larger than the reference perceptual risk index, the larger the perceptual risk index is, the larger the deceleration is set to be,
wherein in the free running deceleration control, the deceleration control unit derives the deceleration corresponding to the transition phase perceptual risk index based on the relationship and sets the derived deceleration as the free running deceleration, and
wherein the relationship adjusting unit executes a correction control in which when the transition phase perceptual risk index is larger than the reference perceptual risk index, the reference perceptual risk index is corrected to be increased, and when the transition phase perceptual risk index is smaller than the reference perceptual risk index, the reference perceptual risk index is corrected to be decreased.