US 12,134,322 B2
Mobile object control device
Yusuke Ohashi, Neyagawa (JP); Taichi Kitamura, Neyagawa (JP); and Hitoshi Katsura, Neyagawa (JP)
Assigned to EXEDY Corporation, Osaka (JP)
Filed by EXEDY Corporation, Neyagawa (JP)
Filed on Jul. 29, 2022, as Appl. No. 17/877,720.
Claims priority of application No. 2021-140122 (JP), filed on Aug. 30, 2021; and application No. 2022-012973 (JP), filed on Jan. 31, 2022.
Prior Publication US 2023/0063733 A1, Mar. 2, 2023
Int. Cl. B60L 15/20 (2006.01)
CPC B60L 15/2009 (2013.01) [B60L 15/20 (2013.01); B60L 2200/42 (2013.01); B60L 2240/12 (2013.01); B60L 2240/14 (2013.01); B60L 2240/642 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A mobile object control device configured to control an electric motor assisting traveling of a mobile object, the mobile object control device comprising:
a rolling resistance calculation section configured to calculate a rolling resistance based on a set weight set by a user;
a power loss calculation section configured to calculate a power loss caused until a power outputted from the electric motor is transmitted to a drive wheel; and
an assist force calculation section configured to calculate an assist force of the electric motor based on an acceleration of the mobile object, the set weight, the rolling resistance calculated by the rolling resistance calculation section, the power loss calculated by the power loss calculation section, and an assist ratio;
wherein the rolling resistance calculation section is configured to multiply a first correction coefficient with respect to the rolling resistance so as to correct the rolling resistance when a vehicle velocity of the mobile object is less than a fifth threshold, the rolling resistance calculation section being further configured to multiply a second correction coefficient with respect to the rolling resistance so as to correct the rolling resistance when the vehicle velocity of the mobile object is greater than or equal to the fifth threshold and less than a sixth threshold, the second correction coefficient increasing with increase in magnitude of the vehicle velocity, and
the second correction coefficient is greater in rate of change than the first correction coefficient.