US 12,134,346 B2
Ramp system
Kentaro Oya, Toyota (JP); Hiroyuki Gotoh, Anjo (JP); Kazuki Osada, Toyota (JP); Naoya Ishida, Kariya (JP); and Chihiro Date, Kariya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Feb. 17, 2022, as Appl. No. 17/673,900.
Claims priority of application No. 2021-052238 (JP), filed on Mar. 25, 2021.
Prior Publication US 2022/0305977 A1, Sep. 29, 2022
Int. Cl. B60Q 1/50 (2006.01); A61G 3/06 (2006.01); B60G 9/00 (2006.01); B60P 1/43 (2006.01); E05F 15/00 (2015.01); E05F 15/73 (2015.01); B60Q 9/00 (2006.01); B60R 3/00 (2006.01)
CPC B60Q 1/50 (2013.01) [A61G 3/061 (2013.01); B60G 9/00 (2013.01); E05F 15/00 (2013.01); E05F 15/73 (2015.01); B60P 1/431 (2013.01); E05Y 2201/43 (2013.01); E05Y 2400/44 (2013.01); E05Y 2900/531 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A ramp system comprising:
a ramp main body provided in a door opening and configured to advance from a vehicle floor toward a road surface;
a ramp-state detection device configured to detect an advancing-retracting state of the ramp main body and to detect presence or absence of a malfunction in the ramp main body;
a display device configured to display an image in a display area observable from an operator seat; and
a user interface (UI) controller configured to control display on the display device, the UI controller causes the display device to display a state image including an image indicative of the advancing-retracting state and, when the malfunction occurs, causes the display device to display the state image including a warning image indicating that the malfunction occurs, wherein
the ramp-state detection device includes,
a rotation number sensor configured to detect a rotation number of a ramp motor as a power source configured to advance and retract the ramp main body,
a current sensor configured to detect an applied current value in the ramp motor, and
a position switch configured to detect the ramp main body reaching a predetermined position, and
the ramp-state detection device determines whether the malfunction occurs in the ramp main body or not, based on a detection value from the current sensor and a comparison result obtained by comparison between a position of the ramp main body that is estimated from an ON-OFF state of the position switch and a position of the ramp main body that is estimated from the rotation number.