US 11,654,777 B2
Electric vehicle
Akiko Nishimine, Susono (JP); Yoichiro Isami, Mishima (JP); Yoshio Itou, Susono (JP); Hiroyuki Amano, Susono (JP); Tatsuya Imamura, Okazaki (JP); Hiroaki Ebuchi, Hadano (JP); and Hiroaki Kodera, Susono (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jun. 21, 2021, as Appl. No. 17/352,960.
Claims priority of application No. JP2020-135177 (JP), filed on Aug. 7, 2020.
Prior Publication US 2022/0041064 A1, Feb. 10, 2022
Int. Cl. B60L 15/00 (2006.01); B60L 15/20 (2006.01)
CPC B60L 15/20 (2013.01) [B60L 2240/423 (2013.01); B60L 2240/68 (2013.01); B60L 2250/26 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electric vehicle configured to use an electric motor as a power device for traveling, the electric vehicle comprising:
an accelerator pedal;
a pseudo-clutch pedal;
a pseudo-gearshift;
an external sensor configured to detect a condition in which the electric vehicle is placed;
a mode selector configured to select a control mode of the electric motor between a first mode and a second mode; and
a controller configured to control a motor torque output by the electric motor in accordance with the control mode selected by the mode selector,
wherein the controller comprises:
a memory configured to store:
an MT vehicle model simulating a torque characteristic of a driving wheel torque in an MT vehicle having an internal combustion engine whose torque is controlled by operation of a gas pedal and a manual transmission whose gear stage is switched by operation of a clutch pedal and operation of a gearshift; and
a motor torque command map defining a relationship of a motor torque with respect to an operation amount of the accelerator pedal and a rotation speed of the electric motor; and
a processor configured to execute:
in the first mode,
a process of receiving an operation amount of the accelerator pedal as an input of an operation amount of the gas pedal with respect to the MT vehicle model,
a process of receiving an operation amount of the pseudo-clutch pedal as an input of an operation amount of the clutch pedal with respect to the MT vehicle model,
a process of receiving a shift position of the pseudo-gearshift as an input of a shift position of the gearshift with respect to the MT vehicle model,
a process of calculating the driving wheel torque determined from the operation amount of the gas pedal, the operation amount of the clutch pedal and the shift position of the gearshift using the MT vehicle model, and
a process of calculating the motor torque for giving the driving wheel torque to driving wheels of the electric vehicle;
in the second mode,
a process of disabling the operation of the pseudo-clutch pedal and the operation of the pseudo-gearshift, and
a process of calculating the motor torque using the motor torque command map based on the operation amount of the accelerator pedal and the rotation speed of the electric motor; and
in response to a change of selection of the control mode by the mode selector,
a process of performing a first determination whether the control mode can be switched, based on the condition detected by the external sensor, and
a process of switching the control mode according to the result of the first determination.