Nissan Motor Company Limited

Naoki Miyashita

Tatsuya Suzuki

Yuuki Shiozawa

Mitsunori Ohta

Ikuma Shindo

Tomoyuki Kashiwaya

Satoshi Ota

Keigo Ajiro

Yosuke Miuchi

Katsuaki Kubotera

A magnitude of a road surface slope along which a vehicle travels is detected, when the magnitude of the road surface slope increases, a basic braking force set in advance is corrected to be decreased based on the magnitude of the road surface slope, or a basic driving force set in advance is corrected to be increased based on the magnitude of the road surface slope, when the magnitude of the road surface slope decreases, a basic braking force is corrected to be increased based on the magnitude of the road surface slope or a basic driving force is corrected to be decreased based on the magnitude of the road surface slope, and the corrected braking force or driving force is generated.

Braking/driving force control method and braking/driving force control device

An electrically driven vehicle includes a motor configured to supply the vehicle with a braking force or a driving force corresponding to an accelerator operation amount. The braking force is controlled when the accelerator operation amount is less than a predetermined value and the driving force is controlled when the accelerator operation amount is the predetermined value or more. A torque target value at which the motor is caused to output a braking or driving torque corresponding to the accelerator operation amount is calculated. A disturbance torque acting on the motor as a resistance corresponding to a road surface gradient is estimated, and a correction to remove the disturbance torque from the torque target value is performed. The correction amount is reduced in a downhill road when the accelerator operation amount is less than the predetermined value and a vehicle speed is larger than a predetermined vehicle speed.

Control method for electrically driven vehicle and control device for electrically driven vehicle

A braking force control method detects a wheel speed of a vehicle, generates a holding braking force for holding the stopped state of the vehicle, regardless of whether or not a brake is operated by a driver of the vehicle, when it is determined that the vehicle has stopped, based on the wheel speed detected in the state in which a braking force is applied to the vehicle, and delays the period in which the holding braking force is generated, in accordance with the friction coefficient of a road surface in the traveling path of the vehicle.

Braking force control method and braking force control device

When a driver demand torque is not greater than a target braking/driving torque, the acceleration/deceleration of the vehicle is controlled depending on the target braking/driving torque, when the driver demand torque exceeds the target braking/driving torque, the acceleration/deceleration is controlled depending on the driver demand torque, when the accelerator pedal operation amount decreases after the driver demand torque exceeds the target braking/driving torque, the driver demand torque is decreased depending on the decrease in the accelerator pedal operation amount, the decrease rate of the driver demand torque depending on the decrease in the accelerator pedal operation amount is set to be smaller than the decrease rate for a case where the driver does not set a travelling speed, and the acceleration/deceleration is controlled based on the set driver demand torque, and when the accelerator pedal operation amount becomes zero subsequently, the acceleration/deceleration is controlled depending on the target braking/driving torque.

Information display is performed, in which recognizability of information regarding a driving support control is relatively good even in a situation where a driving load is relatively large, the information display not annoying a driver. A display controller displays a support state displaying image, which is an image having a configuration in which a vehicle image is superimposed on a mesh image as a mesh-like planar image, on a liquid crystal display device provided in a meter panel of a meter device. In addition, upon having determined that a driving support control implemented by a driving support device is operating, the display controller performs a display control to change a display mode of a mesh image portion of the support state displaying image, which is to be displayed on the liquid crystal display device, to a preset display mode.

Display control device for vehicle and display control method for vehicle

A vehicle brake device is configured to limit a drop in a final target braking force when an abrupt deceleration is performed by the driver. The vehicle brake device has a brake operating element, a master cylinder and a controller. The brake operating element is operated by the driver of a vehicle. The master cylinder is operatively coupled to the brake operating element to generate a fluid pressure in accordance with an operation of the brake operating element. The controller calculates a target deceleration rate based on the fluid pressure of the master cylinder and controls a braking force of the vehicle in accordance with the target deceleration rate. The controller is limits a decrease in the target deceleration rate during an abrupt deceleration caused by the operation of the brake operating element by the driver.

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Kanagawa, Japan

Naoki Miyashita