US 12,065,122 B2
Electric vehicle
Fumiyuki Moriya, Tokyo (JP); Atsushi Doki, Tokyo (JP); Hirofumi Yabe, Tokyo (JP); Takumi Hoshi, Tokyo (JP); Masaki Komuro, Tokyo (JP); Tetsu Matsuzaki, Tokyo (JP); and Jun Oosawa, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Jul. 19, 2021, as Appl. No. 17/379,301.
Claims priority of application No. 2020-128754 (JP), filed on Jul. 30, 2020.
Prior Publication US 2022/0032897 A1, Feb. 3, 2022
Int. Cl. B60W 20/00 (2016.01); B60K 6/24 (2007.10); B60K 6/26 (2007.10); B60K 6/543 (2007.10); B60W 30/18 (2012.01); B60W 30/182 (2020.01); B60W 50/00 (2006.01)
CPC B60W 20/00 (2013.01) [B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60K 6/543 (2013.01); B60W 30/18009 (2013.01); B60W 30/18172 (2013.01); B60W 30/182 (2013.01); B60W 50/00 (2013.01); B60W 2050/0026 (2013.01); B60W 2520/06 (2013.01); B60W 2552/35 (2020.02); B60W 2720/26 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/18008 (2013.01); B60Y 2300/18175 (2013.01); B60Y 2300/182 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electric vehicle comprising:
a vehicle controller configured to switch a traveling mode of the electric vehicle between a first traveling mode and a second traveling mode that applies driving-force maps for enhancing a rough-road capability from a rough-road capability in the first traveling mode,
wherein the driving-force maps of the second traveling mode includes a first driving-force map to be used when the electric vehicle moves in forward traveling and a second driving-force map to be used when the electric vehicle in backward traveling,
wherein driving force to be generated based on the first driving-force map is greater than driving force to be generated based on the second driving-force map in relation to an amount of an accelerator operation,
wherein the vehicle controller is further configured to:
when the traveling mode is switched to the second traveling mode and the electric vehicle in the forward traveling, control the electric vehicle based on the first driving-force map; and
when the traveling mode is switched to the second traveling mode and the electric vehicle in the backward traveling, control the electric vehicle based on the second driving-force map,
wherein the electric vehicle further comprises:
an engine configured to drive a driving wheel;
a drive motor configured to drive the driving wheel; and
a continuously variable transmission configured to transfer power generated by the drive motor to the driving wheel,
wherein the second traveling mode allows outputting of power generated by the engine alone to the drive wheel or both the outputting of the power generated by the engine and outputting of the power generated by the drive motor to the drive wheel,
wherein the vehicle controller is configured to apply a delay to the outputting of the power generated by the drive motor in response to switching between the forward traveling and the backward traveling in the second traveling mode, and
wherein the delay applied in response to switching of forward traveling to backward traveling in the second traveling mode is shorter than the delay applied in response to switching of backward traveling to forward traveling in the second traveling mode.