Title:
ELECTRIC VEHICLE CONTROL METHOD AND ELECTRIC VEHICLE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2023177096
Kind Code:
A
Abstract:
To provide an electric vehicle control method and an electric vehicle control device in which, when a first electric motor and a winding-field type second electric motor are applied to an electric four-wheel drive vehicle, and the drive torque is output from the first electric motor and the second electric motor is coasted, shock and rattling noise that may occur during reacceleration using the second electric motor are prevented from occurring.SOLUTION: When a first torque command value to a first electric motor is not zero and a second torque command value to a second electric motor is zero, the electric vehicle control method determines whether or not backlash reduction made between the second electric motor and a driving force transmission mechanism is canceled; then, upon determining that the backlash reduction is canceled, outputs a correction torque command value to the second electric motor to maintain the backlash reduction; and outputs a first PWM signal to be outputted to a stator on the basis of the correction torque command value, and simultaneously stop outputting of a second PWM signal to be outputted to a rotor.SELECTED DRAWING: Figure 3
Inventors:
NAKAWAJI SHUSAKU
MIZUGUCHI TAKAHIRO
SHOJI MITSUHIRO
MIZUGUCHI TAKAHIRO
SHOJI MITSUHIRO
Application Number:
JP2022089810A
Publication Date:
December 13, 2023
Filing Date:
June 01, 2022
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
B60L9/18; H02P5/46
Attorney, Agent or Firm:
Patent Attorney Corporation Goto Patent Office