US 12,280,646 B2
Vehicle drive device
Isao Toda, Aki-gun (JP); Seiyo Hirano, Aki-gun (JP); Kei Yonemori, Aki-gun (JP); and Hideki Sanai, Aki-gun (JP)
Assigned to Mazda Motor Corporation, Hiroshima (JP)
Appl. No. 16/981,224
Filed by MAZDA MOTOR CORPORATION, Hiroshima (JP)
PCT Filed Mar. 19, 2019, PCT No. PCT/JP2019/011426
§ 371(c)(1), (2) Date Sep. 15, 2020,
PCT Pub. No. WO2019/181932, PCT Pub. Date Sep. 26, 2019.
Claims priority of application No. 2018-052636 (JP), filed on Mar. 20, 2018; and application No. 2018-143351 (JP), filed on Jul. 31, 2018.
Prior Publication US 2021/0023935 A1, Jan. 28, 2021
Int. Cl. B60K 1/04 (2019.01); B60K 1/02 (2006.01); B60K 6/24 (2007.10); B60K 6/28 (2007.10); B60K 6/40 (2007.10); B60K 6/44 (2007.10); B60K 6/442 (2007.10); B60K 6/52 (2007.10); B60K 7/00 (2006.01); B60L 9/18 (2006.01); B60L 15/20 (2006.01); B60L 50/16 (2019.01); B60L 50/40 (2019.01); B60L 50/60 (2019.01); B60L 50/61 (2019.01); B60L 53/24 (2019.01); B60W 10/08 (2006.01); B60W 20/10 (2016.01); B60W 20/20 (2016.01); B60W 40/08 (2012.01); H02K 7/00 (2006.01); B60K 6/26 (2007.10)
CPC B60K 1/04 (2013.01) [B60K 1/02 (2013.01); B60K 6/24 (2013.01); B60K 6/28 (2013.01); B60K 6/40 (2013.01); B60K 6/44 (2013.01); B60K 6/442 (2013.01); B60K 6/52 (2013.01); B60K 7/0007 (2013.01); B60L 9/18 (2013.01); B60L 15/20 (2013.01); B60L 50/16 (2019.02); B60L 50/40 (2019.02); B60L 50/60 (2019.02); B60L 50/61 (2019.02); B60L 53/24 (2019.02); B60W 10/08 (2013.01); B60W 20/10 (2013.01); B60W 20/20 (2013.01); B60W 40/08 (2013.01); H02K 7/006 (2013.01); B60K 2001/0405 (2013.01); B60K 2001/0416 (2013.01); B60K 2001/0438 (2013.01); B60K 2001/045 (2013.01); B60K 6/26 (2013.01); B60K 2007/0092 (2013.01); B60W 2540/10 (2013.01); B60Y 2200/92 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A vehicle drive device that uses an in-wheel motor to drive a vehicle, the vehicle drive device comprising:
a vehicle speed sensor that detects a travel speed of the vehicle;
an in-wheel motor that is provided in a first wheel of the vehicle and drives the first wheel;
a body side motor that is provided in a body of the vehicle and drives a second wheel of the vehicle;
a battery that supplies an electric power to the body side motor;
a capacitor that is connected in series with the battery; and
a controller that controls the in-wheel motorand the body side motor,
wherein the in-wheel motor is driven by a voltage that is sum of an output voltage of the battery and an inter-terminal voltage of the capacitor,
wherein the controller controls the in-wheel motor so as to generate a first driving force when the travel speed of the vehicle detected by the vehicle speed sensor is equal to or more than a predetermined first vehicle speed that is more than zero, and
wherein the controller controls the body side motor so as to generate a second driving force when the travel speed of the vehicle detected by the vehicle speed sensor is less than a predetermined second vehicle speed.