Mazda Motor Corporation

Ikutoku Gakuen

Ntn Corporation

Hitachi Astemo Ltd.

School Judicial Person Ikutokugakuen

Makoto Yamakado

Masato Abe

Yoshio Kano

Kazuki Sato

Takatoshi Tsukano

Daisuke Umetsu

Osamu Sunahara

Fuminori Kato

Shohei Yamada

Norio Ishihara

Mitsunori Ishibashi

Atsushi Itou

Yu Sato

Yusuke Tanaka

In an aspect of a vehicle control device, a vehicle control method, a target trajectory calculation method, and a vehicle according to the present invention, an offset amount of a coordinate value or a curvature is determined for each item of basic trajectory coordinate data on a basis of the basic trajectory coordinate data on at least a part or all of a two-dimensional coordinate value, a trajectory curvature, and a trajectory azimuth angle at coordinates arranged in ascending order of arc length from a certain position serving as an origin point, new target trajectory coordinate data is determined by adding the offset amount to each item of the basic trajectory coordinate data, and a trajectory of a vehicle is controlled on a basis of the new target trajectory coordinate data. Thus, a target trajectory with an out-in-out line can be obtained as in steering by an expert driver.

Vehicle control device, vehicle control method, target trajectory calculation method, and vehicle

A vehicle control method is applied to a vehiclein which a front wheelis driven by an engine, and the method includes a basic torque setting step of setting basic torque to be generated by the engine, based on an operational state of the vehicle; a deceleration torque setting step of setting deceleration torque, based on an increase in steering angle of a steering apparatusmounted on the vehicle; a torque generation step of controlling the engineso that torque based on the basic torque and the deceleration torque is generated; and a deceleration torque changing step of changing the deceleration torque, based on a vehicle-width-direction mounting position of a steering wheeland an operation direction of the steering wheelwhen the steering angle is increased. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheeland the operation direction of the steering wheel, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.

Vehicle control method, vehicle system, and vehicle control apparatus

A vehicle control method is applied to a vehiclein which a front wheelis driven by an engine, and the method includes a basic torque setting step of setting basic torque to be generated by the engine, based on an operational state of the vehicle; an acceleration torque setting step of setting acceleration torque, based on a reduction in steering angle of a steering apparatusmounted on the vehicle; a torque generation step of controlling the engineso that torque based on the basic torque and the acceleration torque is generated; and an acceleration torque changing step of changing the acceleration torque, based on a vehicle-width-direction mounting position of a steering wheeland an operation direction of the steering wheelwhen the steering angle is reduced. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheeland the operation direction of the steering wheel, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.

A control apparatus of a vehicle includes: a steering apparatus () including a steering wheel () operated in order to turn a vehicle () and a steering angle sensor () that detects a steering angle of the steering wheel (), the steering apparatus () steering a front wheel (steered wheel) () of the vehicle () in accordance with operation of the steering wheel (); and a controller () that sets a steering angle acceleration based on the steering angle detected by the steering angle sensor () and controls vehicle motion when the steering wheel () is operated to be turned. In particular, the controller () suppresses a rise of lateral acceleration of the vehicle () based on the steering angle acceleration in order to control the vehicle motion.

Control apparatus of vehicle

The steering system includes: a first steering device to-steer left and right wheels in a mechanically associated manner by changing an angle of left and right chassis frame components; and a second steering device to drive a supplementary turning actuator to change angles of the wheels relative to the chassis frame components. The second steering device includes a supplementary turning control section to perform a control to cause turning by a steering angle that is a difference between a steering angle determined by a numerical model of vehicle motion on the basis of the steering command angle and the vehicle velocity and an actual steering angle.

Steering system and vehicle equipped with same

Growing community of inventors

Atsugi, Japan

Makoto Yamakado