Nissan Motor Company Limited

Yoshihiro Terai

Tsukasa Ichiba

Azusa Kobayashi

Makoto Ogata

Masayuki Ootani

Tomohiro Ito

Yoshihiro Kondo

Ryo Onogawa

Keisuke Nishida

Kentaro Fuse

Kensaku Endo

This is a control method for a vehicle, the vehicle including an electric generator, an engine coupled to the electric generator, a drive motor configured to drive the vehicle, and a battery electrically connected to the electric generator and the drive motor, electric power generated by the electric generator being configured to be supplied to at least one of the battery and the drive motor. The control method is including: calculating, when a temperature of the battery is equal to or lower than a predetermined temperature, a drive torque target value based on required electric power of the vehicle and a state of the battery, controlling a torque of the electric generator based on the drive torque target value, and controlling a rotation speed of the engine based on a predetermined reference low rotation speed, thereby performing a low electric power generation control for causing the electric generator to generate electric power.

Control method for vehicle and control device for vehicle

A vehicle control system increases the travel distance of a vehicle by inhibiting reduction in the SOC of a battery even when the output of an engine is limited. The control system is characterized by comprising: an electric motor that drives a vehicle: an engine that drives a power generator that generates electric power to be supplied to the electric motor; a battery that is configured to be chargeable by the power generator and that is electrically connected to the electric motor; and a controller that controls the electric motor.

Method for controlling vehicle and system for controlling vehicle

A power generation system includes an internal combustion engine, an electrical generator, and a power transmission mechanism. A method for controlling the system includes executing rotation speed control of driving the electrical generator by using electric power supplied from a battery, and matching a rotation speed of the electrical generator with a target rotation speed at the time of starting the power generation system. Output possible electric power of the battery and rotation speed of the electrical generator are acquired. A filtering process of reducing a component of a resonance frequency band of a spring-mass system including the engine, generator, and power transmission mechanism is executed on the rotation speed of the electrical generator. An upper limit torque of the electrical generator is calculated based on the filtered rotation speed and the output possible electric power. The rotation speed control is executed under a limitation of the upper limit torque.

Method and device for controlling starting of power generation system

A engine starting method is carried out to start an engine of a vehicle. The vehicle includes a first hub, a second hub, and a damper. The damper connects the first hub and the second hub in a power transmission path between the engine and a generator capable of power generation and powered travel. The engine starting method determines whether or not the engine needs to be started, begins to crank the engine via the generator when the engine needs to be started, performs a first ignition when torque fluctuation caused by torsion in the first hub and the second hub is in a range of being absorbable by the damper during the cranking, and suppresses engine torque generated by the first ignition below engine torque generated by second and subsequent ignitions.

Vehicle engine starting method, series hybrid vehicle, and vehicle engine starting device

Disclosed is a control method for an internal combustion engine () including a power generation motor () driven by a power of the internal combustion engine () and a damper () provided between the internal combustion engine () and the power generation motor () in a power transmission path, wherein a maximum value of a torque fluctuation generated in an event of a misfire occurring in a cylinder of the internal combustion engine () is larger than a value at which a displacement of a main damper () of the damper () is allowed to be suppressed to be smaller than a displacement at which abutting occurs on a first stopper () by a counter torque of the power generation motor (), and the control method includes limiting a torque (Te) of the internal combustion engine () within a range in which a displacement of the main damper () is allowed to be controlled to be smaller than a displacement at which abutting occurs on the first stopper () by a counter torque of the power generation motor ().

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Kanagawa, Japan

Yoshihiro Terai